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Academic literature on the topic 'Steel Railway Bridge'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Steel Railway Bridge"

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Vičan, Josef, Jozef Gocál, Jaroslav Odrobiňák, and Peter Koteš. "Existing Steel Railway Bridges Evaluation." Civil and Environmental Engineering 12, no. 2 (December 1, 2016): 103–10. http://dx.doi.org/10.1515/cee-2016-0014.

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Abstract The article describes general principles and basis of evaluation of existing railway bridges based on the concept of load-carrying capacity determination. Compared to the design of a new bridge, the modified reliability level for existing bridges evaluation should be considered due to implementation of the additional data related to bridge condition and behaviour obtained from regular inspections. Based on those data respecting the bridge remaining lifetime, a modification of partial safety factors for actions and materials could be respected in the bridge evaluation process. A great attention is also paid to the specific problems of determination of load-caring capacity of steel railway bridges in service. Recommendation for global analysis and methodology for existing steel bridge superstructure load-carrying capacity determination are described too.
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Luo, Ru Deng, Mei Xin Ye, and Ye Zhi Zhang. "Study on Influences of Thickness of Flange of U Rib on Mechanical Behaviors of Orthotropic Monolithic Steel Bridge Deck System." Advanced Materials Research 163-167 (December 2010): 122–26. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.122.

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Orthotropic monolithic steel bridge deck system stiffened by U rib is very fit for high-speed railway steel bridges because of its excellent mechanical behaviors. Thickness of flange is a very important parameter of U rib and has influence on mechanical behaviors of orthotropic monolithic steel bridge deck system. Based on the engineering practice of Anqing Yangtze River Railway Grand Bridge, the kind and the extents of influences of thickness of flange of U rib on mechanical behaviors of orthotropic monolithic steel bridge deck system are studied with finite element analysis. The results show that thickness of flange of U rib has relative large positive influences on rigidity, strength and stability of orthotropic monolithic steel bridge deck system. 14~18mm is the appropriate range of thickness of flange of U rib for high-speed railway steel bridges.
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Braschler, Brigitte, Claudine Dolt, and Bruno Baur. "The Function of A Set-Aside Railway Bridge in Connecting Urban Habitats for Animals: A Case Study." Sustainability 12, no. 3 (February 7, 2020): 1194. http://dx.doi.org/10.3390/su12031194.

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As elements of green infrastructure, railway embankments are important corridors in urban environments connecting otherwise isolated habitat fragments. They are interrupted when railways cross major roads. It is not known whether dispersing animals use railway bridges to cross roads. We examined the function of a set-aside iron-steel railway bridge crossing a 12 m wide road with high traffic density in Basel (Switzerland) for dispersing animals. We installed drift fences with traps on a single-track, 32 m long and 6 m wide railway bridge with a simple gravel bed, and collected animals daily for 9 months. We captured more than 1200 animals crossing the bridge: small mammals, reptiles and amphibians as well as numerous invertebrates including snails, woodlice, spiders, harvestmen, millipedes, carabids, rove beetles and ants. For some animals it is likely that the gravel bed, at least temporarily, serves as a habitat. Many animals, however, were apparently dispersing, using the bridge to cross the busy road. We found season- and daytime-dependent differences in the frequency the bridge was used. Our findings indicate an important function of a set-aside railway bridges for connecting urban habitats. As most animal dispersal was recorded during the night, railway bridges with no (or little) traffic during the night may also contribute to animal dispersal. As important elements of green infrastructure, set-aside railway bridges should be considered in future urban planning.
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Viswanatj, Kandagatla, and M. Ravi Kumar. "Fatigue Analysis of a Railway Steel Bridge." International Journal of Engineering & Technology 7, no. 3.12 (July 20, 2018): 1098. http://dx.doi.org/10.14419/ijet.v7i3.12.17769.

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One of the significant means of transportation in India are railways and has many steel bridges which are very old having historical importance and their design period is terminating. To appraisal, the levels of damage for workable repairs, stands a tedious job for government authorities. The prediction of fatigue life of bridges are important because at present these are subjected to elephantine loads than the design loads and the environmental conditions boost these aspects to turn up fatigue life. This paper studies the analytical analysis of a steel railway bridge subjected to EURO and INDIAN fatigue loading to evaluate the fatigue life of a bridge and stresses are calculated from S-N curves by nominal stress method. The fatigue verification has been done by λ-coefficient method. Fatigue life of critical section was found out by sub-modelling the welded joint where the stress are maximum. The crack initiation starts at powerless members and propagates it along the section leads to fracture the entire structure under elastic behaviour. Hence, if the results of the critical section are satisfactory, it can be concluded that entire bridge is safe in fatigue point of view. INDIAN HM loadings generate more damage than EURO LM-71 loading.
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Li, Wen Ping, Shu Li Chen, and Mu Biao Su. "Lateral Vibration Research for Railway Deck Steel Plate Bridges." Advanced Materials Research 243-249 (May 2011): 1646–50. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.1646.

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In this paper, the vehicle-bridge lateral vibration mechanism was analyzed; the vehicle-bridge vibration model was built and the lateral reinforcement schemes of open steel plate bridges were designed. Numbers of analysis were carried out for the lateral vibration of 40m deck steel plate bridges before and after reinforcement, under input of random artificial hunting waves and track irregularity. The results showed that, the frequency of hunting motion is approaching loaded frequency of the girder. The larger lateral amplitude appears on the bridge when the hunting wavelength is around 8~9m and the velocity of the train is around 55~70km/h. The wavelength is longer, the resonant velocity of the bridge is higher.
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Liu, Jia, Run Chang Zhang, Li Jiang, Zhong Shan He, and Dong Mei Tan. "Research on Vibration Responses of Railway Steel Bridge Considering Welding Residual Stress." Applied Mechanics and Materials 397-400 (September 2013): 374–77. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.374.

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Vibration responses of railway steel bridge considering welding residual stress have been researched. Based on the reasonable heat source model matching the electrical arc welding, the welding residual stress in welding joints of steel bridge has been simulated. Meanwhile, it has been superimposing with the gravity stress and the actual measured dynamical stress of railway steel bridge. Then, acting all actions to the accurate finite element model, the vibration responses of railway steel bridge considering welding residual stress can be analyzed, and the conclusion that the residual stress has a significant contribution to the vibration dynamical stress in welding joints district of railway steel bridge has been obtained.
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Sala, Damian, P. Pawłowski, Przemysław Kołakowski, Andrzej Świercz, and Krzysztof Sekuła. "Monimost - Integrated SHM System for Railway Truss Bridges." Key Engineering Materials 518 (July 2012): 211–16. http://dx.doi.org/10.4028/www.scientific.net/kem.518.211.

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A railway bridge has been the object of investigation since mid 2007 as a response to increasing interest in structural health monitoring (SHM) from Polish Railways. It is a typical 40 m long, steel truss structure spanning a channel in Nieporet near Warsaw. There is over 1500 similar bridges in the railway network in Poland. The integrated system consists of two components weigh in motion (WIM) part for identification of train load and SHM part for assessing the state of the bridge. Two aspects of wireless transmission are considered short range (in the vicinity of the bridge, 2.4GHz) and far range (from the bridge to the data analysis center, GSM). The system is designed to be energetically self-sufficient, batteries are recharged by solar panels. Both the subsystems use piezoelectric strain sensors. Numerical model of the bridge corresponds well to the experimental data and provides a good starting point for considering different scenarios of simulated damage in the structure.
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Bizjak, Karmen Fifer, Aljoša Šajna, Katja Slanc, and Friderik Knez. "Environmental life cycle assessment of railway bridge materials using UHPFRC." Materials and Geoenvironment 63, no. 4 (October 1, 2016): 183–98. http://dx.doi.org/10.1515/rmzmag-2016-0017.

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AbstractThe railway infrastructure is a very important component of the world’s total transportation network. Investment in its construction and maintenance is significant on a global scale. Previously published life cycle assessment (LCA) studies performed on road and rail systems very seldom included infrastructures in detail, mainly choosing to focus on vehicle manufacturing and fuel consumption. This article presents results from an environmental study for railway steel bridge materials for the demonstration case of the Buna Bridge in Croatia. The goal of these analyses was to compare two different types of remediation works for railway bridges with different materials and construction types. In the first part, the environmental impact of the classical concrete bridge construction was calculated, whereas in the second one, an alternative new solution, namely, the strengthening of the old steel bridge with ultra-high-performance fibre-reinforced concrete (UHPFRC) deck, was studied. The results of the LCA show that the new solution with UHPFRC deck gives much better environmental performance. Up to now, results of LCA of railway open lines, railway bridges and tunnels have been published, but detailed analyses of the new solution with UHPFRC deck above the old bridge have not previously been performed.
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Gawronek, Pelagia, Maria Makuch, Bartosz Mitka, and Tadeusz Gargula. "Measurements of the Vertical Displacements of a Railway Bridge Using TLS Technology in the Context of the Upgrade of the Polish Railway Transport." Sensors 19, no. 19 (October 2, 2019): 4275. http://dx.doi.org/10.3390/s19194275.

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The railway system in Poland is undergoing technological transformation. The development of the Polish railway system concerns not only high-speed trains but also infrastructure. The steel bridge is the most popular type of railway bridge in Poland. Most of them were built in the 1950s and 1960s. According to the recommendations in place in Western Europe, such railway bridges should be reviewed in terms of their fitness for use with modern high-speed trains. The modern technological revolution affects not only the railway, but also developments in displacement and deformation measurement techniques. New technologies provide more objective measurement results and accelerate results processing. They also facilitate the non-contact measurement of bridge structure stability. The authors investigated the vertical displacement of an old steel railway bridge in three different, specific case studies of terrestrial laser scanning data application. Then, the results of 3D data were compared with traditional land surveying results. The scientific results led to a conclusion that a strictly determined methodology of the measurement and analysis of a terrestrial laser scanner results supported by traditional land surveying techniques facilitates the determination of the vertical displacement of bridges with acceptable accuracy.
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Yılmaz, Mehmet Fatih, Barlas Özden Çağlayan, and Kadir Özakgül. "Seismic assessment of a curved multi-span simply supported truss steel railway bridge." Challenge Journal of Structural Mechanics 4, no. 1 (March 3, 2018): 13. http://dx.doi.org/10.20528/cjsmec.2018.01.003.

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Fragility curve is an effective method to determine the seismic performance of a structural and nonstructural member. Fragility curves are derived for Highway Bridges for many studies. In Turkish railway lines, there are lots of historic bridges, and it is obvious that in order to sustain the safety of the railway lines, earthquake performance of these bridges needs to be determined. In this study, a multi-span steel truss railway bridge with a span length of 25.7m is considered. Main steel truss girders are supported on the abutments and 6 masonry piers. Also, the bridge has a 300m curve radius. Sap 2000 finite element software is used to model the 3D nonlinear modeling of the bridge. Finite element model is updating according to field test recordings. 60 real earthquake data selected from three different soil conditions are considered to determine the seismic performance of the bridge. Nonlinear time history analysis is conducted, and maximum displacements are recorded. Probabilistic seismic demand model (PSDMs) is used to determine the relationship between the Engineering Demand Parameter (EDP) and Intensity Measure (IMs). Fragility curve of the bridge is derived by considering the serviceability limit state, and results are discussed in detail.
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Dissertations / Theses on the topic "Steel Railway Bridge"

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Kanter, Peeter. "Fatigue and dynamics of secondary beams in steel railway bridges." Thesis, KTH, Bro- och stålbyggnad, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150432.

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Many steel railway bridges in Europe are older than 50 years whilethey are subjected to higher loads than they were originally designedfor. As many of these bridges are approaching the end of their designlife it is crucial to carry out accurate fatigue assessments in order toensure their safety and keep them in service. Usually the influence ofdynamics on fatigue damage is taken into account using dynamicamplification factors from design codes whereas the actual influenceof dynamics has not been thoroughly studied.   During this study the importance of dynamics on fatigue damage isexamined on two specific examples, namely the Söderstöm Bridgeand the Åby älv bridge, which are good examples of open deckbridges that are common among steel railway bridge population.   Different train speeds, the cross beam effect and load distributionwere studied in order to assess the importance of dynamics on fatiguedamage. Three dimensional finite element models were created andlater modified to perform dynamic analysis. Moving point loads wereused to simulate the loading of moving trains. Fatigue damages werecalculated at the various locations to evaluate the influence ofdynamics on fatigue damage.   The results show that the dynamics has small influence on fatiguedamage at studied speeds and damage is not dependent on speed.Assessed cross beam effect was not detected on studied bridges interms of dynamics, but has great influence in terms of statics.
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Shibeshi, Rahel Delelegne. "Dynamic analysis of steel railway bridge subjected to train loads." Diss., University of Pretoria, 2015. http://hdl.handle.net/2263/57220.

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In this research a single span simply supported steel truss railway bridge is analyzed when subjected to train loads. The study was conducted by using three different methodologies namely modal analysis using three dimensional finite element models of a bridge based on As-built drawn from scratch; a time history analysis and field measurement on an existing bridge. The finite element models of the bridge were modeled using two methodologies; using beam and shell elements. A time history analysis involves developing an equation of motion for the forced and free vibration of the bridge when subjected to both a single- and successive train loads. The dynamic responses studied include the displacement, acceleration and natural frequency of the bridge which were compared for different train speeds, span length, and the mass of the bridge. Field measurement was conducted using accelerometers and displacement transducers which were mounted on a self-designed mounting section.
Dissertation (MEng)--University of Pretoria, 2015.
tm2016
Civil Engineering
MEng
Unrestricted
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Trépanier, Maude. "Développement d'un concept de pont ferroviaire mobile." Mémoire, Université de Sherbrooke, 2011. http://hdl.handle.net/11143/5495.

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Interruption of railway traffic creates important financial losses for the transportation utilities and society at large. At this moment, to limit this impact, the CN uses emergency girders stored around their territory to decrease the time to transport the materials to the site. However, this method is difficult to put in place and bypass of the traffic is not possible everywhere. The development of a portable railway bridge is interesting for this purpose. This structure has to be transported, erected and in services within 48h. This type of bridge should also be adjustable in length to allow reusing of the existing bearings, piers and abutments (5 to 28m of span). Between the steel superstructure possibilities, three solutions have been chosen: (a) plate girder, (b) through girder and (c) through truss. The geometry and the construction method are the particularities to consider. After those conceptions, the three alternatives have been analyzed as a function of many criteria. The number of bolts, the quantity of material and the dimension of the prefabricated sections were considered to determine the best solution for this kind of utilization.
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Orlando, Lorenzo. "Finite Element model calibration of a historical railway steel truss bridge by using dynamic monitoring data." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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This paper proposes a multidisciplinary approach, combining the terrestrial laser scanner and ambient vibration tests to characterize a historical steel truss bridge in Spain: the Vilagarcia Celosia Bridge. All methods are complemented by advanced numerical simulations and a coarse to fine calibration strategy, based on the Cotter and the non-linear least squares approaches. Results obtained corroborate the robustness of the proposed approach, with a max error in frequencies of 3.6% and an average modal assurance criterion of 0.93.
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Woll, Joakim. "Soil Steel Composite Bridges for High-Speed Railways : 2D FEM analysis of the Björnbo Bridge." Thesis, KTH, Bro- och stålbyggnad, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-153227.

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This research aims to analyse the dynamic behaviour of Soil-Steel Composite Bridges when subjected by high-speed trains. the analyses of the dynamic response for these structures are needed since there is little research performed in the present field of knowledge. Since there is also in need to perform separate dynamic analysis for these structures to verify their dynamic response, the dynamic behaviour must be analysed. The research are performed in 2D FE-models in the commercial FE-program Brigade/PLUS since there is of interest to analyse if simplified 2D-models can predict the dynamic behaviour for these structures and verify against design criterions in regulatory documents. The research is performed by calibrating a reference model against collected field measurements from a constructed Soil-Steel Composite Bridge, SSCB, located in Märsta, Sweden, Märsta Bridge. The calibration process was made to ensure satisfactory results before continuing the research by analysing a future planned SSCB in a case study that is known to in the future be subjected by high-speed trains. The future planned bridge is the Björnbo Bridge located in Skutskär, Sweden. A static structural design is first made with existing methods to verify Björnbo Bridge for static load cases. Attempts is made to verify the Björnbo Bridge against dynamic criterions available in Eurocode documents and Swedish Transport Administration regulatory documents, which includes verifying accelerations limits for 10 different high-speed trains. Smaller analysis of fatigue for the Märsta Bridge and the Björnbo Bridge was also made to verify dynamic stresses from giving fatigue damages. Since the research is limited for SSCB for dynamic cases, parametric studies are performed for certain parameters identified from an international literature review of earlier studies in both static and dynamic analysis. The studied parameters are: Soil cover depth, Young's modulus for engineered backfill and different profiles impact. These parametric studies are made to be able to understand influence and sensitivities from the analysed parameters with the long-term goal to develop analysis methods and verifications for SSCB for dynamic load situations. The calibrated reference model showed that there are difficulties in calibrating acceleration levels that agrees with the field measurements from Märsta Bridge. The expected result from the analysis of the Björnbo bridge was to fulfil static structural design criterions and that the acceleration limits were below serviceability criterions for dynamic analysis according to Eurocode documents. Moreover, that the stresses did not give fatigue damages. From parametric studies, it has shown that the governing parameter is the Young's modulus for engineered backfill, which affects estimated accelerations in a fashion that was not expected in the beginning. The presumption to perform dynamic analysis with 2D FE-models has shown that all aspects that is needed to verify cannot be performed, such as bending in two directions or twisting mode shapes. Thus, there is in need to find ways to perform dynamic analysis for SSCB with efficient 3D-models.
Denna avhandling syftar till att undersöka det dynamiska beteendet hos rörbroar när dem belastas med höghastighetståg. Analyser av den dynamiska responsen för dessa konstruktioner är behövlig då det finns lite forskning som utförts inom kunskapsområdet. Då man även behöver genomföra separata dynamiska analyser för dessa konstruktioner för att verifiera  deras dynamiska beteende, så är det ett behov av att dess dynamiska beteende analyseras. Undersökningen är genomförd med FE-modeller i 2D i det kommersiella FE-programmet Brigade/PLUS då det är av intresse att analysera om förenklade 2D-modeller kan forutse det dynamiska beteendet för dessa konstruktioner och verifiera konstruktionen mot kriterier ställda i styrande dokument. Undersökningen genomförs genom att kalibrera en referens modell mot insamlade fältmätningar från en konstruerad rörbro i Märsta, Sverige, Märsta rörbro. Kalibreringsprocessen genomförs för att försäkra att godtagbara resultat erhålls innan undersökningen fortsätter med att analysera en planerad rörbro i en fallstudie som kommer belastas av höghastighetståg. Den planerade rörbron är Björnbo rörbro som skall konstrueras i Skutskär, Sverige. En statisk konstruktionsberäkning med befintliga metoder är först utförd för att erhålla dimensioner och verifiera Björnbo rörbro för ett statiskt lastfall. Därefter utförs försök att verifiera Björnbo rörbro mot dynamiska villkor tillgängliga i Eurokod och Trafikverkets styrande dokument, detta inkluderar att verifiera accelerationsnivåer för 10 olika höghastighetståg. Mindre analyser genomförs även för utmattning för Märsta rörbro och Björnbo rörbro för att verifiera den dynamiska spänningshistoriken inte orsakar utmattningsskador. Då forskningen är begränsad gällande dynamiska studier för rörbroar, så utförs även parametriska studier för parametrar identifierade från en internationell litteraturinventering av tidigare studerade fall för rörbroar gällande både statiska och dynamiska analyser. Dom studerade parametrarna är: Överfyllnadshöjd, Jordmodul för kringfyllning och olika profilers inverkan. Dessa parametriska studier är utförda för att förstå influensen och känsligheten i dessa parametrar med det långsiktiga målet att utveckla analysmetoder för att verifiera rörbroar även för dynamiska situationer. Den kalibrerade modellen visade att det var svårigheter att kalibrera in accelerationsnivåer som överensstämde med fältmätningar från Märsta rörbro. Det förväntade resultatet från Björnbo rörbro var att uppfylla statiska konstruktionsvillkor och att uppfylla accelerationskrav för bruksgränstillståndet för konstruktionen. Samt att kunna verifiera att utmattningen inte skulle utgöra ett problem. Från dom parametriska studierna så har det visat att den styrande parametern är jordmodulen för kringfyllningen, den påverkar accelerationsnivåer som inte var förväntat vid undersökningens påbörjan. Antagandet att utföra de dynamiska analyserna med 2D FE-modeller har visat att alla aspekter som ska verifierasinte kan utföras, så som böjande moment i två riktningar eller vridande mod former. Således, så finns ett behov av att finna vägar att utföra dynamiska analyser för rörbroar i effektiva 3D-modeller
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Aagah, Orod, and Siavash Aryannejad. "Dynamic analysis of soil-steel composite railway bridges : FE-modeling in Plaxis." Thesis, KTH, Bro- och stålbyggnad, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-155515.

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A soil-steel composite bridge is a structure comprised of corrugated steel plates, which are joined with bolted connections, enclosed in friction soil material on both sides and on the top. The surrounding friction soil material, or backfill, is applied in sequential steps, each step involving compaction of the soil, which is a necessity for the construction to accumulate the required bearing capacity. Soil-steel composite bridges are an attractive option as compared with other more customary bridge types, owing to the lower construction time and building cost involved. This is particularly true in cases where gaps in the form of minor watercourses, roads or railways must be bridged. The objective of this master thesis is the modelling of an existing soil-steel composite railway bridge in Märsta, Sweden with the finite element software Plaxis. A 3D model is created and calibrated for crown deflection against measurement data collected by the Division of Structural Engineering and Bridges of the Royal Institute of Technology (KTH) in Stockholm, Sweden. Once the 3D model is calibrated for deflection, two 2D models with different properties are created in much the same way. In model 1, the full axle load is used and the soil stiffness varied, and in model 2 the soil stiffness acquired in the 3D model is used and the external load varied. The results are compared to measurement data. In 2D model 1 an efficient width of 1,46 m for the soil stiffness is used in combination with the full axle load, and in 2D model 2 an efficient width of 2,85 m is used for the external load, in combination with the soil stiffness acquired in the 3D model. Aside from this, parametric studies are performed in order to analyse the effect of certain input parameters upon output results, and in order to analyse influence line lengths. Recreating the accelerations and stresses in the existing bridge using finite element models is complicated, and the results reflect this. Below are shown the discrepancies between model results and measurement data for the pipe crown. The scatter in the measurement data has not been taken into consideration for this; these specific numbers are valid only for one particular train passage. For crown deflection, the 3D model shows a discrepancy of 4%, 2D model 1 5% and 2D model 2 8% compared with measurement data. For crown acceleration, in the same order, the discrepancy with measurements is 1%, 71% and 21% for maximum acceleration, and 46%, 35% and 28% for minimum acceleration. For maximum crown tensile stress, the discrepancy is 95%, 263% and 13%. For maximum crown compressive stress, the discrepancy is 70%, 16% and 46%.
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Mazza, Silvia. "Dynamic behaviour of the railway steel bridge crossing Po river at Ostiglia: global and local analysis." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Structural health monitoring is a very important phase of the maintenance of a civil work. In fact, thanks to the installation of a system able to monitor the conditions of a structure, it is possible to verify how this same structure responds to the loads to which it is subjected and to identify potentially damaged zones. Specifically, a railway bridge crossing a river undergoes stresses and deformations caused by the passage of trains, earthquake events and interactions with water. The INFRASAFE project aims to investigate all these aspects in order to guarantee a total monitoring of a specific structure - the bridge at Revere crossing Po river – in the environmental surrounding where it is placed. This research thesis is part of such project in a sense that it constitutes the preliminary analytical phase prior the experimental campaigns in the site. The truss structure will be modeled in Straus7 and a modal analysis will be performed in order to determine its frequencies and vibration modes. In addition, the axle loads of the real trains passing on the bridge will be considered for a linear static analysis. The results of such analysis will be investigated and the most stressed steel junction will be locally modeled in order to study its fatigue capacity.
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Häggström, Jens. "Evaluation of the Load Carrying Capacity of a Steel Truss Railway Bridge : Testing, Theory and Evaluation." Licentiate thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-60029.

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A good deal of resources has been invested in building and maintaining existing infrastructure.Many structures are now becoming old and do not meet the requirements of an increasingtraffic load, or are reaching the end of their lifecycle. It is not possible or sustainable to replaceall those structures that have been judged to be obsolete or nearly obsolete. However, in manycases, their specified load carrying capacities are understated, so there is an urgent need toobtain more robust knowledge of their true status. In the design of new structures, a numberof assumptions relating to loading and structural behaviour have to be made, a number that canbe reduced by finding out more about the actual behaviour of the structure. This licentiate thesis describes the structural behaviour of existing unballasted open steel trussrailway bridges in general and methods for assessment in particular, with the aim of keepingthese structures in service for longer. An extensive program, divided into three phases of experimental studies, was carried out toincrease the understanding of existing unballasted steel truss railway bridges. Phase I consisted of instrumentation and monitoring of a 60 year-old railway bridge (ÅbyBridge) while it was still in service. A description of the object and the monitoring in thisphase of measurements is presented in Chapter 3 with some results and analysis in Chapter 4.Some of the findings from Phase I are described in Paper A, from which it was concluded thatthe stringer beams were subjected to large stresses originating from torsion and out-of-planebending. These effects are not normally considered yet may have significant consequences inrelation to fatigue. In Phase II, the former bridge over the Åby River was replaced and put beside the railwaytracks, where the instrumentation from Phase I was extended. The bridge was statically testedin 18 pre-defined load series before reaching failure. Phase II is described in Chapter 3 andsummarized in Paper B. It was found that the bridge could withstand loading corresponding tofour times the highest permitted axle-loading, or twice the design load for new bridges, beforeexhibiting an obvious non-linear behaviour with regard to vertical displacement in the midspan.The peak load was achieved at loading approximately 50% higher than the initial nonlinearbehaviour, where lateral buckling of the top chord limited the structure from carryingmore load. The failure can be concluded as being redundant without brittle failure of any ofthe connections. In Phase III, a different bridge was fitted with instrumentation and monitored while subjectedto live loading: the bridge over the river Rautasjokk. The Rautasjokk Bridge was constructedfive years later than the Åby Bridge, using the same drawings thus making it theoreticallyidentical in terms of geometry and material. It is situated along the “Ore line”, meaning that itis subjected to higher loads compared to the Åby Bridge which was located along the “Mainline”. The program for measurements originated from a code-based assessment which ruled thebridge unsafe to use with regard to fatigue of the stringers due to the gusset plates welded tothe top flange of the stringers. Paper C describes the measurement of local fatigue strains (hotspot)and comparison with nominal strains. In that paper, it was concluded that the hot-spotapproach was only favourable for one out of three studied positions, with regard to fatiguelifespan. This thesis ends with conclusions and suggestions for further research.
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Mellat, Peyman. "Dynamic analysis of soil-steel composite bridges for high speed railway traffic : Case study of a bridge in Märsta, using field measurements and FE-analysis." Thesis, KTH, Bro- och stålbyggnad, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-125342.

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Soil-steel composite bridge refers to structures where a buried flexible corrugated steel pipe works in composite action with the surrounding soil. These structures are being increasingly used in road and railway projects as an alternative to standard type bridges, e.g. short- and medium span concrete beam- and portal frame bridges. On account of their economic advantage and short and easy construction operation, soil-steel composite bridges are getting more popular as railway crossings located far from the cities at the heart of the nature. In this research, the dynamic behaviour of soil-steel composite bridges under high-speed train passages is studied. The studied case is a short span soil-steel composite railway bridge located in Märsta close to Stockholm. The behaviour of the bridge is first observed through field measurements in terms of deflections, stresses, and accelerations at several locations on the bridge. The measured responses are then analysed in order to predict the properties of the soil and steel material working in composite action. Subsequently, 2D and 3D finite element models are developed in order to simulate the behaviour of the bridge. The models are calibrated using the field measurements through several parametric studies. The 3D-model also enables estimation of the load distribution, which is found to increase at higher train speeds. An effective width to be used in 2D analyses is proposed. Finally, the response of the bridge is studied under high-speed train models according to Eurocode.
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Badrous, Therese, and Ebba Lund. "Reduced stress method for steel in class 4 cross-sections : Evaluation of the reduced stress method for a railway bridge." Thesis, KTH, Byggteknik och design, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302525.

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The effective cross-section method, also called reduced cross-section method is generally used for steel in class 4 cross-sections in considering local buckling. This method is a bit complicated and time consuming, which often leads to engineers not using profiles in class 4 cross-sections. The reduced stress method is an alternative method for handling slender steel cross-sections. These two methods are described in the Eurocode, of which the latter is less described. The national annex states that the reduced stress method should not be used, however, without explanation to the general recommendation. This study is a comparison of the two different methods and is intended to provide a better understanding of the reduced stress method. The calculation process and design for steel profiles in class 4 cross-sections can in this way become more efficient. This is done by determining when it is most profitable to use the reduced stress method instead of the effective cross-section method. Thus, can the use of profiles in class 4 cross-sections become a more obvious choice in the industry. This study considered a simply supported I-beam in an open railway bridge exposed to bending moment where the same conditions were investigated for each method. The effective crosssection method is implemented by reducing the cross-sectional area and was calculated manually. In the reduced stress method, it is the yield stress that is reduced. The reduced stress method was analyzed both through FEM and manual calculations in this study. The result showed that the reduced stress method performed through FEM gave a similar result as the effective cross-section method, which makes it an appealing method. The reduced stress method with manual calculation, however, gave a more conservative result. These methods are relativelydifferent and recommendations for each method are presented in this report.
Idag behandlas ståltvärsnitt i tvärsnittklass 4 generellt med hjälp av metoden effektivt tvärsnitt för att beakta lokal buckling. Metoden är en aning komplicerad och tidskrävande, vilket leder till att konstruktörer överlag inte använder profiler i tvärsnittsklass 4. Reducerad spänning är en alternativ metod för hantering av slanka ståltvärsnitt. Dessa två metoder beskrivs i Eurokoden varav den sist nämnda mer kortfattat. I den nationella bilagan står det att metoden reducerad spänning ej bör användas dock utan motivering till det allmänna rådet. Studien är en jämförelse av de två olika metoderna och är ämnad till att ge en bättre förståelse av metoden reducerad spänning. Således kan beräkningsgången samt projektering för stålprofiler i tvärsnittsklass 4 effektiviseras. Detta genom att avgöra när det är mest lönsamt att använda reducerad spänning framför effektivt tvärsnitt. Följaktligen kan användning av profiler i tvärsnittsklass 4 bli ett mer självklart val i branschen. Denna studie omfattade en fritt upplagd I-balk i en öppen järnvägsbro utsatt för böjande moment där samma förutsättningar har undersökts för respektive metod. Effektivt tvärsnitt går ut på att reducera en tvärsnittsarea och har utförts via handberäkningar. I metoden reducerad spänning är det sträckgränsen som reduceras. I denna studie undersöktes reducerad spänningsmetoden via FEM samt handberäkningar. Resultatet påvisade att metoden reducerad spänning utförd via FEM gav ett liknande resultat som metoden effektivt tvärsnitt, vilket gör det till en attraktiv metod. Reducerad spänning via handberäkning gav dock ett mer konservativt resultat. Metoderna är relativt olika och rekommendationer för tillämpning av respektive metod presenteras i denna rapport.
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Books on the topic "Steel Railway Bridge"

1

Canada. Parliament. House of Commons. Bill: An act to incorporate the Detroit River Railway Bridge Company. Ottawa: I.B. Taylor, 2002.

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Canada. Parliament. House of Commons. Bill: An act respecting the Nova Scotia Steel Company, Limited. Ottawa: S.E. Dawson, 2002.

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Canada. Parliament. House of Commons. Bill: An act respecting the Nickel Steel Company of Canada. Ottawa: S.E. Dawson, 2003.

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Canada. Parliament. House of Commons. Bill: An act respecting the Canada Southern Bridge Company. Ottawa: S.E. Dawson, 2003.

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Canada. Parliament. House of Commons. Bill: An act respecting the River St. Clair Railway Bridge and Tunnel Company. Ottawa: S.E. Dawson, 2003.

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Canada. Parliament. House of Commons. Bill: An act respecting the Niagara Grand Island Bridge Company. Ottawa: S.E. Dawson, 2002.

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Commons, Canada Parliament House of. Bill: An act to incorporate the St. Clair River Railway Bridge and Tunnel Company. Ottawa: I.B. Taylor, 2002.

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Design of modern steel railway bridges. Boca Raton, FL: CRC Press, 2010.

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Canada. Parliament. House of Commons. Bill: An act respecting the Canada and Michigan Bridge and Tunnel Company. Ottawa: S.E. Dawson, 2003.

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Brown, C. W. Reducing noise emissions from steel railway bridges. Ascot: Steel Construction Institute, 1997.

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Book chapters on the topic "Steel Railway Bridge"

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Pietraszek, T. T. "Full Scale Testing of Steel Railway Bridges." In Bridge Evaluation, Repair and Rehabilitation, 463–78. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2153-5_34.

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Plugin, Andrii, Nadiya Murygina, Serhii Miroshnichenko, and Olena Kaliuzhna. "Materials for Connecting Railway Reinforced Concrete Bridge Deck with Steel Bridge Structures." In Lecture Notes in Civil Engineering, 318–28. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-14141-6_32.

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Xiao, Yancai, Kun Fu, Zhuang Li, Zhiping Zeng, Jian Bai, Zhibin Huang, Xudong Huang, and Yu Yuan. "Research on Construction Process of Steel Beam Incremental Launching Based on Finite Element Method." In Lecture Notes in Civil Engineering, 254–62. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_22.

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AbstractIn order to ensure the normal operation of the traffic under the bridge, reasonable calculation methods and construction techniques should be adopted for the construction of the newly added railway station. This paper establishes a structural calculation finite element model to calculate and analyze the various construction stages of the steel beam incremental launching construction of the newly-added Gaoping station on the Yichuang-Wanzhou Railway, and systematically study the mechanical properties of the steel beam in the process. The results show that: (1) The deflection of each rod can meet the requirements of the railway bridge steel structure construction specification. However, when the length of the front cantilever of the steel beam reaches 11.4 m, the maximum deflection of the upper and lower chord bars is close to the limit. (2) The load-bearing capacity of each member of the steel beam meets the requirements, which indicates that the structural design of the steel beam and the incremental launching construction plan are reasonable. (3) In view of the complexity and uncertainty of the incremental launching construction process, real-time monitoring of the construction process is required, and the beam should be dropped in time when abnormal conditions occur to ensure the safe operation of the existing line.
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Minor, Oscar, and Pavel Ryjáček. "Rotational Stiffness of Connections in a Historical Steel Railway Bridge." In RILEM Bookseries, 1082–89. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-99441-3_117.

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Todesco, P., M. Domaneschi, A. Rønnquist, and G. T. Frøseth. "Modelling an existing steel railway bridge for residual service life assessment." In Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability, 2153–61. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003322641-267.

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Ochirdorj, Altanzagas, Tsas-Orgilmaa Makhbal, Duinkherjav Yagaanbuyant, and Mungun Duinkherjav. "The diagnosis of old railway steel bridge over the Kharaa river." In Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability, 621–26. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003322641-74.

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Beben, Damian. "Experimental Testing of Soil-Steel Railway Bridge Under Normal Train Loads." In Lecture Notes in Civil Engineering, 805–15. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67443-8_71.

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Sukuvara, D. S., S. Nordal, A. Lau, and J. Vaslestad. "Stiffness variations of railway tracks over rigid concrete and flexible steel culverts." In Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability, 1328–35. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003322641-161.

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Nowak, Marek, Igor Lyasota, and Dawid Kisała. "Testing the Node of a Railway Steel Bridge Using an Acoustic Emission Method." In Springer Proceedings in Physics, 265–75. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-29052-2_23.

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Bojovic, Aleksandar, and Antonio Mora Munoz. "Railway Road Bridge in Novi Sad – Steel Tied Network Arches Over the Danube." In Structural Integrity, 621–29. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29227-0_67.

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Conference papers on the topic "Steel Railway Bridge"

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Liu, Xiaoguang, Yongjie Pan, and Xinxin Zhao. "Research on Construction Informatization of Railway Steel Bridge Based on BIM in China." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.1552.

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<p>The construction informatization of railway bridges is becoming a significant feature of “intelligent manufacturing" in China's high speed railway (HSR). In order to explore the implementation of “Internet plus steel bridge construction" and further improve the quality and efficiency of construction, digitization and informatization of steel bridge construction have been studied. The overall framework of digital construction of railway steel bridge construction based on the internet of things (IoT) and BIM technology is proposed after analyzing the key process of quality control during the construction of railway steel bridge. And then the virtual reconstruction of railway steel bridge is presented based on the advanced digital technology. Taking the pre-assembly in fabrication stage and the bolted connection in erection stage of steel bridges as two representative examples, the virtual reconstruction information system has been developed and tested in some HSR railway bridge projects in China, which verifies the feasibility and efficiency of digital control virtual reconstruction strategy. The research is meaningful to the future application and development in intelligent construction of railway steel bridges.</p>
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Zeng, Jiahua, Wangqing Wen, and Aiguo Yan. "Design of Sea-Crossing High-Speed Railway Steel-Concrete Composite Box Girder Cable-Stayed Bridge." In IABSE Conference, Kuala Lumpur 2018: Engineering the Developing World. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/kualalumpur.2018.0521.

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<p>Quanzhou Bay Railway Bridge is the key component of the Fuzhou-Xiamen High-Speed Railway with the design speed of 350 km/h. The total length of 20.3 km is the greatest among the sea- crossing high-speed railway bridges in the world. The main structure over the main navigation channel is a steel-concrete composite cable-stayed bridge with the span arrangement of（ 70+130+400+130+70）m. The main girder adopts a closed and streamlined box section.</p><p>In the past decades, the sea-crossing railway cable-stayed bridges mostly adopted steel truss girder. Quanzhou Bay Railway Bridge is the first railway bridge adopting the steel-concrete composite box girder cable-stayed bridge type in china and the longest-span sea-crossing high- speed railway bridge in the world. In this paper, the structural design and construction method for this bridge are presented.</p>
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Culek, B., V. Dolezel, and P. P. Prochazka. "Probabilistic Assessment of a Railway Steel Bridge." In 9th International Conference On Analysis of Discontinues Deformation: New Developments and Applications. Singapore: Research Publishing Services, 2009. http://dx.doi.org/10.3850/9789810844554-0136.

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Bouvet, Caroline, Thierry Delémont, and Pierre Moïa. "Lanciau Bridge – First spatial tubular truss railway bridge." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.2767.

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<p>The old Lanciau bridge, constructed in 1904, needed to be replaced by a new bridge which would allow for a continuous ballasted track.</p><p>The new bridge was designed with a view to maintaining the spirit of the old one by keeping a truss structure, while modernizing it both from the point of view of its shape (spatial triangular truss with variable height) and its sections (pipes). It took advantage of the presence of the concrete trough to connect this to the steel truss, in order to increase the rigidity of the bridge with the composite effect.</p><p>This bridge is one of the very first railway bridges made of tubular truss, which provides a pure and smooth design thanks to its compact and pure assembling nodes.</p><p>The new truss structure is really the key point of this bridge because of the tubular nodes which do not meet any standards. In particular, the fatigue resistance analysis of the 3D tubular nodes required the application of very specific documentation and results from PhD’s, as well as the use of volume finite element computations.</p><p>The new Lanciau bridge is now ready to service MOB panoramic trains, and to continue the tradition of Swiss alpine steel railway bridges.</p>
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Xiaoguang, Liu. "The Fatigue Researches on Railway Steel Bridge in China." In 10th Pacific Structural Steel Conference (PSSC 2013). Singapore: Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-7137-9_209.

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Venturi, Giorgia, Peter Simonsson, and Peter Collin. "Strengthening old steel railway bridges: a review." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1718.

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<p>Strengthening old bridges is an increasingly relevant strategy for risk prevention and operation continuity in management of infrastructures. Transportation networks are subjected to progressively stricter environmental and load conditions, leading to a growing number of deficient structures, also due to aging and deterioration. However, employable resources are finite, from both economical and environmental points of view. For these reasons, strengthening opportunities should be considered as a viable option, improving bridges behaviour with low economical and environmental impact. With this perspective, a selection of some of the most interesting strengthening techniques for old truss railway bridges is presented. To address effective solutions, the most frequent problems in old truss railway bridges are first presented. Literature analysis and experts’ interviews were conducted and compared to results obtained from a representative bridge cluster. Different solutions addressing highlighted problems are then collected and qualitatively evaluated, in terms of efficacy on structural behaviour and typical construction requirements. Finally, general remarks and recommendations based on collected evidence are presented.</p>
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Venturi, Giorgia, Peter Simonsson, and Peter Collin. "Strengthening old steel railway bridges: a review." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1718.

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<p>Strengthening old bridges is an increasingly relevant strategy for risk prevention and operation continuity in management of infrastructures. Transportation networks are subjected to progressively stricter environmental and load conditions, leading to a growing number of deficient structures, also due to aging and deterioration. However, employable resources are finite, from both economical and environmental points of view. For these reasons, strengthening opportunities should be considered as a viable option, improving bridges behaviour with low economical and environmental impact. With this perspective, a selection of some of the most interesting strengthening techniques for old truss railway bridges is presented. To address effective solutions, the most frequent problems in old truss railway bridges are first presented. Literature analysis and experts’ interviews were conducted and compared to results obtained from a representative bridge cluster. Different solutions addressing highlighted problems are then collected and qualitatively evaluated, in terms of efficacy on structural behaviour and typical construction requirements. Finally, general remarks and recommendations based on collected evidence are presented.</p>
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Gutiu, Stefan I. "COMPOSITE STEEL-CONCRETE TRUSSES FOR RAILWAY BRIDGE SUPERSTRUCTURES." In 14th SGEM GeoConference on NANO, BIO AND GREEN � TECHNOLOGIES FOR A SUSTAINABLE FUTURE. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b62/s26.010.

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Nikolov, Peter. "Replacement of an old steel railway overpass without traffic interruption." In 7th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2022. http://dx.doi.org/10.5592/co/cetra.2022.1361.

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As part of the Reconstruction and Modernisation of Road I-8 Project in Bulgaria, demolition of an existing single-track steel railway overpass with a span of about 46.5 m and its replacement with a double track bridge designed in accordance with the Eurocodes is planned. As the road and railway traffic cannot be interrupted, it is necessary to temporarily shift the railway line and build a new temporary railway bridge, as well as to change the route of the I-8 in the construction site several times. The report presents information about the different stages of construction: construction and testing of the temporary bridge, removal of the existing steel bridge weighing about 180 tons and construction of the new bridge facility.
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Liu, Xiaoguang, Yongjie Pan, and Xinxin Zhao. "Research on Key Technology of Operation and Maintenance Management of Long Span Railway Steel Bridge Based on BIM." In IABSE Conference, Seoul 2020: Risk Intelligence of Infrastructures. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2020. http://dx.doi.org/10.2749/seoul.2020.222.

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<p>In order to adapt to the development trend of informatization and intelligence of railway bridge operation and maintenance management, the integration of BIM Technology and large-span railway steel bridge operation and maintenance business becomes more and more urgent. Taking one special railway steel bridge as an example, the division levels of bridge structural parts, structural elements and specific components were defined, and the refined BIM model of bridge was established based on the demand of operation and maintenance. The knowledge base systems of component, defect, inspection and maintenance in bridge was formed. The three terminal BIM management system was developed, and the closed-loop management process of bridge inspection, maintenance and repair based on the BIM model was established. At the same time, the monitoring information could be integrated, which can provide the basis for the formation of bridge digital twins. The research results provide a firmly support for data-driven comprehensive evaluation and conditional maintenance of railway steel bridges.</p>
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Reports on the topic "Steel Railway Bridge"

1

GUO, Hui, Suoting HU, Xiaoguang LIU, and Pengfei SU. DISPLACEMENT AT GIRDER END OF LONG-SPAN RAILWAY STEEL BRIDGES AND PERFORMANCE REQUIREMENTS FOR BRIDGE EXPANSION JOINT. The Hong Kong Institute of Steel Construction, December 2018. http://dx.doi.org/10.18057/icass2018.p.035.

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Wong, Ka Ying, Sakshi Pandey, Veronica Ern Hui Wee, and KE Seetha Ram. Planning and Capacity Building for High-Speed Rail Development in India: Five Key Lessons. Asian Development Bank Institute, January 2023. http://dx.doi.org/10.56506/pgrm7468.

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India’s urbanization rate has increased from 26% in 1991 to 35% in 2021, and it is expected to reach 41% by 2030 (World Bank 2022). In response to this, as the backbone of its growing economy, the country’s infrastructure development, particularly transportation development, has been heavily emphasized. The railway sector will see an investment of $715.41 billion by 2030. Along with a series of supporting government policies, an opportunity to expand the high-speed rail (HSR) network has been presented in India. From the viewpoint of the government, HSR is an effective tool to address the surge in travel demand because of its mass transportation, high speed, and high energy efficiency (Suzuki et al. 2022). Besides, HSR projects bring about a ripple effect on the Indian economy by generating local employment opportunities, catalyzing the steel and cement sector and galvanizing AatmaNirbhar Bharat (an initiative by the Government of India to make the country self-reliant) through the indigenization of technology (National High Speed Rail Corporation Limited 2022). From the perspective of communities and individuals, HSR improves their quality of life by offering a faster and safer transportation option for work and travel.
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ULTIMATE CAPACITY OF NARROW TYPE STEEL BOX SECTION FOR RAILWAY SELF-ANCHORED SUSPENSION BRIDGE UNDER BIAS COMPRESSION. The Hong Kong Institute of Steel Construction, May 2019. http://dx.doi.org/10.18057/ijasc.2019.15.2.7.

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