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Добірка наукової літератури з теми "RC FRAMED BUILDING"

Автор: Grafiati

Опубліковано: 11 вересня 2023

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Статті в журналах з теми "RC FRAMED BUILDING"

Gondaliya, K. M., T. N. Palsanawala, V. Bhaiya, S. A. Vasanwala, and A. K. Desai. "Seismic Vulnerability of Code Compliant RC Frame Building with Unreinforced Masonry Infill Walls." Proceedings of the 12th Structural Engineering Convention, SEC 2022: Themes 1-2 1, no. 1 (December 19, 2022): 925–29. http://dx.doi.org/10.38208/acp.v1.603.

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Unreinforced masonry (URM) infill walls in Reinforced concrete (RC) buildings are normally designed as non-structural elements. However, in the past, the post-earthquake response of the RC frame building showed that URM infill walls increase the strength and stiffness of the RC frame buildings. Further, it is also observed that URM helped to prevent the disastrous destruction by acting as a structural member in RC frame. In the present study, the performance assessment of a four-storey URM infill RC frame with different infill configurations, namely bare and Open Ground Storey (OGS) is done using fragility analyses. Nonlinear masonry material is modelled as the equitant three strut model in ETABS. Nonlinear static pushover analysis is applied for the analysis of the configured RC frames. The probability of damage states is determined by firstly converting pushover curves into capacity curves and accordingly, performance-point values of Spectral acceleration and Spectral displacement for seismic demand Zone-V (Elastic Response Spectra as per IS 1893:2016) using the capacity-spectrum method (ATC-40) are determined. The fragility function used is an approximation of the continuous to discrete distribution. Fragility curves and mean damage matrix are derived to compare performance with each other. From the vulnerability analyses, it is observed that the OGS framed RC building performs better as compared to the bare frame.

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., M. Muthulakshmi, and M. Vinod Kumar . "Experimental Studies on Fibre Integrated Lightweight Concrete Frames Under Lateral Forces: A Review." Asian Journal of Engineering and Applied Technology 7, no. 1 (March 5, 2018): 88–91. http://dx.doi.org/10.51983/ajeat-2018.7.1.874.

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Reinforced Concrete (RC) framed structure with masonry infill is the most common type of building in which, RC frames participate in resisting lateral forces. The poor performance of RC frame buildings under lateral forces is due to its heavy mass and rigid construction. Use of Lightweight concrete (LWC) is preferred since the dead load of concrete is enormous. A low density of the LWC, decreases the weight of the building thus reducing the effect of lateral forces. However, LWC having a lower modulus of elasticity, has a faster rate of crack development in RC members. So, fibres are employed as an additive to increase the energy absorption capacity and to control the crack development. Pumice is a natural material of volcanic origin, has low density, which makes it ideal for production of LWC. Based on these ideas, Pumice aggregate is used as a partial replacement of coarse aggregate to its volume with addition of steel fibres to the volume of concrete. This paper summarizes the collected literatures related to RC frames, LWC, Fibre Reinforced Concrete (FRC) and thereby attempts to predict the lateral load response of RC portal frame with the use of LWC and Steel fibres.

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Raju, Y. Kamala, G. V. V. Satyanarayana, and G. Arun Sai. "RCC Highrised Residential Buildings its Influence on Earthquake Loads." E3S Web of Conferences 184 (2020): 01107. http://dx.doi.org/10.1051/e3sconf/202018401107.

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The present decade, high rise multi-storey buildings are subjected to many external effects such as earthquake, wind loads, tidal loads, etc., in most cases high rise buildings have more vulnerable to earthquake and wind loads. Most of the reinforced concrete multi-storeyed frame buildings were heavily damaged and many of them completely collapsed during due earthquakes. RC frame buildings were severely damaged due to various deficiencies when proper codal provisions are not designed. A study is need to study the behaviour of the RC framed structure under earthquake load to reduce the damage caused by earthquake forces In this investigation a RC framed building of G+20 storeyed is considered in several seismic zones under different soils as per Indian Standard code IS 1893(part1):2016, using STAAD. Pro V8i as software tool. Finally evaluate the ultimate Base shear using Equivalent static method and Response spectrum method addressing under design forces.

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Katsimpini, Panagiota S., and George A. Papagiannopoulos. "Effectiveness of the Seesaw System as a Means of Seismic Upgrading in Older, Non-Ductile Reinforced Concrete Buildings." Vibration 6, no. 1 (January 21, 2023): 102–12. http://dx.doi.org/10.3390/vibration6010008.

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This work investigates and discusses the effectiveness of the seesaw system when installed in an older, non-ductile reinforced concrete (RC) building for seismic upgrading purposes. In particular, two different configurations of the seesaw system are assumed in a two-storey 3D RC framed building which was designed according to older seismic provisions and, thus, is susceptible to flexural and shear failures. To check if there is any merit in employing the seesaw system in this RC building, non-linear time-history (NLTH) analyses are conducting using 11 seismic motions. Peak values for inter-story drift ratios (IDR), residual inter-story drift ratios (RIDR) and floor accelerations (FA) are computed, and the sequence and cause (i.e., due to surpass of flexural or shear strength) of plastic hinge formations are monitored. Leaving aside any issues related to fabrication and cost, interpretation of the results obtained by the aforementioned seismic response indices for the RC building under study leads to the conclusion that the seesaw system can be a retrofitting scheme for the seismic upgrading of older, non-ductile RC framed buildings.

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Talledo, Diego Alejandro, Irene Rocca, Luca Pozza, Marco Savoia, and Anna Saetta. "Numerical Assessment of an Innovative RC-Framed Skin for Seismic Retrofit Intervention on Existing Buildings." Applied Sciences 11, no. 21 (October 21, 2021): 9835. http://dx.doi.org/10.3390/app11219835.

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The seismic safety of existing building stock has become a very critical issue in recent years, mainly in earthquake-prone South Europe where most of the buildings were designed before the enforcement of seismic standards. Therefore, the concept, development and testing of efficient and cost-effective seismic retrofitting technologies are nowadays strongly needed, both for the society and for the scientific community. This study deals with the seismic assessment of a new RC-framed skin for retrofit intervention of existing buildings, evaluated through nonlinear static (pushover) analyses. A preliminary description of the proposed technology is provided, then numerical modeling of a typical RC existing building before and after retrofitting intervention is performed within the OpenSees framework. The results revealed that the proposed retrofitting technology improves the seismic performance of the RC building, also modifying the failure mode from a brittle soft-story mechanism to a more ductile one. The presented study, dedicated to the structural aspects of the system, is part of the TIMESAFE research project, where the thermo-hygrometric and acoustic performances achievable by the proposed RC-framed skin are also investigated.

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Rathore, Mohit. "Seismic Analysis of Reinforced Concrete Building with Infill Wall and Overhead Water Tank." International Journal for Research in Applied Science and Engineering Technology 11, no. 2 (February 28, 2023): 966–71. http://dx.doi.org/10.22214/ijraset.2023.49161.

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Abstract: Infill walls are typically treated as non-structural elements in building design and assessment, and they are ignored in analysis methods because they are assumed to be non-beneficial to response of a structure. Reinforced concrete framed buildings with infill walls are typically analysed as bare frames, with strength and stiffness contributions of the infills ignored. In this study an attempt is be made to find the effect of overhead water tank load on RC building with unreinforced infill wall. From the study it has been found that water tank load makes RC building more vulnerable against lateral loads, but proper incorporation of unreinforced infill walls can enhance storey stiffness, storey drift and other structural deformations parameters.

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Jagadeesan, P., N. Sudharsan, S. M. Subash, Pradeep Thirumoorthy, B. Sugumaran, Jabar Abdul Bari, R. Vetturayasudharsanan, D. Ambika, K. Sharmiladevi, and Kathiresan Karuppanan. "Study on Performance of Infilled Wall in an RC-Framed Structure Using a Reinforcing Band." Advances in Materials Science and Engineering 2022 (September 6, 2022): 1–8. http://dx.doi.org/10.1155/2022/8643959.

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Infilled wall is a primary structure which is used in a multistorey RC-framed structure. It is not designed like structural elements, but it is subjected to structural load and response as a heavily damaged element into the building. The main problem of an infilled wall is not actively utilizing in the framed structure and it is not interacted with frame elements. The objective of research is to utilize the infilled wall in the RC-framed structure by improving its performance of behavior. Here, two different types of brick masonry like Autoclaved concrete and clay brick masonry were used as the infilled wall in an RC-framed structure. A singly bay and single storey RC framed structure was cast and tested under a 1/10th scale model by diagonal compressive loading. The specimen was subjected to static loading by a universal testing machine. Infilled wall is weak in tension, so a reinforcing band was used to improve the performance like load carrying capacity, stiffness, ductility, and energy dissipation capacity. Based on the results of the experimental study, it is found that reinforcing band with the infilled wall gives better behavior of the RC-framed structure.

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Cinitha, A., P. K. Umesha, Nagesh R Iyer, and N. Lakshmanan. "Performance-based Seismic Evaluation of RC Framed Building." Journal of The Institution of Engineers (India): Series A 96, no. 4 (August 28, 2015): 285–94. http://dx.doi.org/10.1007/s40030-015-0129-8.

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Thapa, Gokarna, and Govind Prasad Lamichhane. "Seismic vulnerability assessment of public RC framed building." Asian Journal of Multidimensional Research 12, no. 3 (2023): 149–57. http://dx.doi.org/10.5958/2278-4853.2023.00042.3.

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Mehdipour, Zabih, Elisa Poletti, Jorge M. Branco, and Paulo B. Lourenço. "Numerical Analysis of Masonry-Infilled RC-CLT Panel Connections." Buildings 12, no. 11 (November 17, 2022): 2009. http://dx.doi.org/10.3390/buildings12112009.

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CLT panels have been investigated for reinforcement of existing masonry-infilled RC framed buildings through the increase of the overall lateral stiffness of the structure, thus reducing the story drift demand. The contribution of CLT panels depends on the connection to the RC frame elements. This paper evaluates the role of connectors by which CLT is attached to RC frames for capacity, ductility, and energy dissipation of the structure and its elements separately using different kinds of RC-CLT connections, and ultimately finds and compares the optimum number and arrangement of connectors. The results show that the geometry of connections plays a greater seismic role in RC frames than their mechanical properties. Regarding masonry infills, they allow a higher strength capacity but reduce the efficacy of CLT strengthening. However, strong connectors decrease the ability of infills in dissipation. Finally, in the optimum arrangement of connectors, they are distributed equally along the upper and lower beams at equal spacing, where CLT is added, starting in the middle of the beams and moving to the frame corners.

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Дисертації з теми "RC FRAMED BUILDING"

Punton, Ben. "Progressive collapse mitigation using CMA in RC framed buildings." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/376664/.

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Mitigation of progressive collapse after an initial failure has become a primary concern of engineers in recent years. Often alternative load paths are sought to redistribute load from the damaged area. It has been recognised for some time that the omission of compressive membrane action (CMA), also termed ‘arching action’, can lead to a significant underestimation of load capacity. An investigation has been conducted to ascertain whether the additional load carrying capacity from CMA can provide an inherent alternative load path to aid robustness. A series of scaled specimens with industry standard detailing have been designed for an experimental investigation. Reinforced concrete elements were modelled in the double span scenario once an intermediate column has been removed. The test rig used allows the central support to be removed followed by the application of a point load applied at midspan; the system is determinate including measurement of the horizontal reaction. Subsequent to the flexural response two modes of membrane action are induced, initially compressive until tensile membrane extends load capacity at high values of deflection. The response during the latter tensile phase is outside the scope of this research. Comparisons of experimental data with analytical methods inclusive of CMA have demonstrated that whilst conservative the method by Merola (2009) provides a reasonable prediction. This method has been utilised in a study of a series of flat slab structures with a range of column spacings. The inherent restraint stiffness provided by the surrounding slab and frame has been quantified using FEA and has allowed for the extent to which CMA can improve the robustness of a structure to be determined.

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Paramasivam, Sakthivel. "Protective design against dispropotionate collapse of RC and steel framed buildings." Thesis, University of Southampton, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494494.

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Loots, Jurie. "Computational assessment of seismic resistance of RC framed buildings with masonry infill." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50299.

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Thesis (MScIng)--Stellenbosch University, 2005.
Some digitised pages may appear illegible due to the condition of the original hard copy.
ENGLISH ABSTRACT: Reinforced concrete (RC) frames with unreinforced masonry infill form the structural system of many buildings and this is also true for South Africa. It is common practice to consider the masonry infill as a non-structural component and therefore it does not contribute to the performance of the Re frame buildings under lateral loading such as earthquake loading. This is done by leaving a sufficient gap between the Re frame and the infill. This ensures that there is no contact between the frame and the infill during an earthquake event. However, it has been suggested that masonry infill can play a significant role in the performance of a Re frame building under lateral loading. The first part of the study focuses on the South African situation. The relevance of shear walls in these Re frame buildings as well as the size of the gap (between frame and infill) left in practice, are investigated. This is done by finite element analysis. The second part of the study focuses on the effects that the infill can have on the global performance of the structure when there is full contact between the Re frames and infill. The effect of openings in the infill to the response of the frame is also investigated. Finite element models of single span Re frames with infill is built and analyzed in order to investigate possible damage to the infill, frame infill interaction and to obtain the non linear stiffness of the frame with infill as a whole. This obtained non linear stiffness can be modelled in Diana as a non linear spring that will be used in the development of a simplified analysis method. The simplified method developed consists of a frame and two such non linear springs, placed diagonally, and which have the same force versus displacement behaviour as the original frame with infill. These single span frames can be added together to model a whole frame. In a first step to generalise the simplified method, various geometries of infills are considered, varying span and height, as well as opening percentage, representing windows and doors of varying total area and positioning. However, in this study a single masonry type, namely solid baked clay bricks set in a general mortar, is considered. To generalise the approach further, other masonry types can be considered in the same way. The use of these springs in a simplified model saves computational time and this means that larger structures can be modelled in Diana to investigate response of'Rf' frame buildings with infill. The work reported in this thesis considers only in-plane action. Out-of-plane-action of the masonry infill has been reported in the literature to be considerable, under the condition that it is sufficiently tied to the frame to prevent mere toppling over, causing life risking hazards in earthquake events. This matter should be studied in continuation of the current research to generalise the simple approach to three dimensions.
AFRIKAANSE OPSOMMING: Gewapende betonrame (GBR-e) met ongewapende messelwerk invulpanele (invul) vorm die strukturele ruggraat van vele geboue en dit geld ook vir geboue in Suid-Afrika. Dit is algemene praktyk om die invulpaneel in sulke geboue as 'n nie-strukturele komponent te beskou. Daarvolgens dra dit nie by tot die gedrag van 'n GBR gebou onderhewig aan 'n aarbewing nie. Dit word bereik deur 'n groot genoeg gaping tussen die betonraam en die invul te los. Die gevolg is dat daar geen kontak tussen die betonraam en die invul plaasvind indien daar 'n aardbewing sou voorkom nie. Dit is egter voorgestel dat invul 'n noemenswaardige rol kan speel in die gedrag van 'n GBR gebou onderwerp aan 'n horisontale las. Die eerste deel van die studie fokus op die Suid-Afrikaanse situasie. Die relavansie van skuifmure in GBR geboue asook die grootte van die gaping (tussen die raam en invul) wat in die praktyk gebruik word, word ondersoek. Dit word gedoen met behulp van eindige element analises. Die tweede deel van die studie fokus op die effek wat invul kan hê op die globale gedrag van 'n struktuur wanneer daar volle kontak tussen die GBR en die invul is. Die effek wat die teenwoordigheid van openinge in die invul kan hê op die gedrag van 'n GBR is ook ondersoek. Eindige element modelle van enkelspan GBR met invul is gemodelleer en geanaliseer om die moontlike skade aan die invul, die interaksie tussen die GBR en die invul asook die nie-lineêre styfheid van die raam en invul as 'n geheel, te ondersoek. Hierdie nielineêre styfheid kan in Diana as 'n nie-lineêre veer gemodelleer word en word gebruik in die ontwikkeling van 'n vereenvoudigde metode. Hierdie vereenvoudigde metode wat ontwikkel is, bestaan uit 'n raam en twee sulke nielineêre vere (diagonaal geplaas). Die raam met vere het dieselfde krag teenoor verplasingsgedrag as die van die oorspronklike raam met invul wat dit voorstel. Hierdie rame kan saamgevoeg word om 'n raam uit 'n gebou as 'n geheel te modelleer. Verskeie invul geometrieë word gebruik in die analises in 'n eerste stap om die vereenvoudigde metode te veralgemeen. Die span en hoogte asook opening persentasie van die invul word gevariëer om vensters en deure van veskeie grootte en posisie voor te stel. In die studie, 'n enkel messelwerk tipe, naamlik solied klei bakstene geset in algemene mortar, word gebruik. Ander messelwerk tipes kan gebruik word om die metode verder te veralgemeen. Die gebruik van die vere in die vereenvoudigde metode spaar berekenings tyd en dit beteken dat groter strukture in Diana gemodelleer kan word om die gedrag van GBR geboue met invul te ondersoek. Die werk gedoen in die tesis neem slegs in-vlak aksie in ag. Literatuurstudie dui daarop dat goeie uit-vlak-aksie van messelwerk invul bestaan, mits dit goed geanker is aan die raam om te verseker dat dit nie kan omval en 'n gevaar vir lewens in 'n aardbewing inhou nie. Dit behoort verder bestudeer te vord in die vervolging van die huidige ondersoek om die vereenvoudige metode na drie dimensies te veralgemeen.

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Adom-Asamoah, Mark. "Nonlinear dynamic behaviour of NSD RC frame buildings subjected to earthquakes." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555991.

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TUNC, GOKHAN. "RC/COMPOSITE WALL-STEEL FRAME HYBRID BUILDINGS WITH CONNECTIONS AND SYSTEM BEHAVIOR." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1020441384.

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Barbagallo, Francesca. "An overdamped multimodal adaptive nonlinear static procedure for seismic assessment of rc infilled frames." Doctoral thesis, Università di Catania, 2018. http://hdl.handle.net/10761/3752.

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The seismic assessment of existing structures is considered the fundamental step to (i) estimate the seismic capacity of the initial structure (ii) predict the collapse mechanism and the structural weakness, (iii) select the most appropriate seismic retrofitting technique and determine the improved capacity of the upgraded building. Nonlinear dynamic analysis is widely recognised as the most accurate tool to predict the seismic behaviour of structures. However, this type of analysis has a high computational cost, and it is not an approach that can be extensively applied for professional purposes yet. To provide a tool that predicts the seismic behaviour of structures with a good accuracy but with a lower computational burden, nonlinear static methods of analysis were developed. The Capacity Spectrum Method (CSM) proposed by Freeman and the N2 Method proposed by Fajfar were pioneering methods and were recommended by the American and the European seismic code, respectively. Although these methods of analysis are generally reliable for the assessment of plane frames, however they neglect the contribution of higher modes of vibration to the seismic response and do not consider the progressive reduction of the structural stiffness due to the nonlinear behaviour of the structure. To improve the level of accuracy, advanced nonlinear static methods of analysis were developed, such as the Multimodal Pushover Analysis by Chopra et al., the Displacement Adaptive Puhover by Pinho et al. and the Advanced N1 method by Ghersi et al. Despite the innovative character of these methods, however they still present shortcomings. Another important aspect regarding existing structures is the presence of infill panels. Although infill panels provide the structure with a much larger stiffness and their location and mechanical properties influence the dissipative mechanism of the structure, however they are considered nonstructural elements, and their contribution to the seismic response is neglected. This thesis aims at the development of a nonlinear static method of analysis that can accurately estimate the seismic response of RC frames, with and without infill panels, keeping acceptable computation costs. To this end, the thesis proposes a multimodal adaptive procedure named overDamped Displacement Adaptive Procedure (D-DAP). This method has been developed from the combination of the approaches proposed by Pinho et al. and by Ghersi et al. The multimodal adaptive procedure to update the load vector is taken from the first, while the method for the association of the peak ground acceleration to the displacement demand without the SDOF approximation is drawn from the second. In addition, the D-DAP is equipped with an equivalent damping to consider the increase of the energy dissipation due the cumulated damage in the structure. To this end, the value of the equivalent damping is updated at each step according to a new damping law that has been properly calibrated in this work for RC frames with and without infill panels. The accuracy of the D-DAP in the seismic assessment of rc frames was compared to that of the DAP by Pinho, the MPA by Chopra, the N2 method (EC8) and the CSM (FEMA 440). To this end, a set of 54 RC frames was designed to be representative of existing buildings with various levels of seismic deficiencies, and their seismic responses were predicted by those aforementioned methods of analysis. These comparisons showed that the D-DAP applied with the proposed damping law demonstrated an accuracy in predicting the seismic response of RC frames, with and without infills, generally higher than the other nonlinear static methods of analysis. In particular, the D-DAP provided a significant improvement with respect to the other existing methods in the prediction of the response of RC frames with infill panels.

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Dorji, Jigme. "Seismic performance of brick infilled RC frame structures in low and medium rise buildings in Bhutan." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/29689/1/Jigme_Dorji_Thesis.pdf.

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The construction of reinforced concrete buildings with unreinforced infill is common practice even in seismically active country such as Bhutan, which is located in high seismic region of Eastern Himalaya. All buildings constructed prior 1998 were constructed without seismic provisions while those constructed after this period adopted seismic codes of neighbouring country, India. However, the codes have limited information on the design of infilled structures besides having differences in architectural requirements which may compound the structural problems. Although the influence of infill on the reinforced concrete framed structures is known, the present seismic codes do not consider it due to the lack of sufficient information. Time history analyses were performed to study the influence of infill on the performance of concrete framed structures. Important parameters were considered and the results presented in a manner that can be used by practitioners. The results show that the influence of infill on the structural performance is significant. The structural responses such as fundamental period, roof displacement, inter-storey drift ratio, stresses in infill wall and structural member forces of beams and column generally reduce, with incorporation of infill wall. The structures designed and constructed with or without seismic provision perform in a similar manner if the infills of high strength are used.

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Dorji, Jigme. "Seismic performance of brick infilled RC frame structures in low and medium rise buildings in Bhutan." Queensland University of Technology, 2009. http://eprints.qut.edu.au/29689/.

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Occhipinti, Giuseppe. "Seismic Assessment and Rehabilitation of existing RC Buildings not designed to withstand earthquakes." Doctoral thesis, Università di Catania, 2017. http://hdl.handle.net/10761/3979.

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This thesis presents a high fidelity numerical model developed to investigate the seismic performance and structural robustness of an original and retrofitted 10-storey reinforced concrete (RC) framed building. The analysed structure represents a typical existing building in Catania, Italy, that was designed to resist only gravity and wind loading according to the design regulation allowed until the 1981 in that area. The proposed numerical description adopts beam-column elements for beams and columns and special purpose shell elements for modelling RC floor slabs, both allowing for geometric and material nonlinearity. In order to model masonry infills, a novel macro-element is implemented within a FE framework based on an already published discrete formulation. 3D nonlinear dynamic simulations are performed considering sets of natural accelerograms acting simultaneously along all the three space directions and compatible with the design spectrum for the Near Collapse Limit State. To improve computational efficiency, which is critical when investigating the nonlinear dynamic behaviour of large structures, the partitioning approach previously developed at Imperial College is adopted, enabling effective parallelisation on HPC systems. The numerical results obtained from the 3D nonlinear dynamic simulations are presented and discussed, focusing on the variation in time of the deformed shape, inter-storey drifts, plastic deformations and internal force distribution, considering or neglecting the infill panel contribution. The original structure showed a very poor seismic performance, even though the infill panel contribution leads to significant variation in the response it is not sufficient to preserve the structure from the collapse. A never adopted strengthening solution that utilises the synergetic contribution of concentric steel bracing and eccentric steel bracings with dissipative shear links is illustrated and employed to retrofit the original structure. A detailed model of the retrofitting components is implemented within the detailed model for the original building. The results of numerical simulations for the retrofitted structure confirm that the proposed solution significantly enhances the response under earthquake loading, allowing the structure to resist the design earthquake with only limited damage in the original RC beams and columns, highlighting the feasibility of retrofitting for this typical multi-storey RC building structure.

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Magnanini, Nicola. "Seismic retrofit of a reinforced concrete building placed in L'Aquila." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/4778/.

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Книги з теми "RC FRAMED BUILDING"

béton, Comité euro-international du, ed. RC frames under earthquake loading: State of the art report. London, UK: T. Telford, 1996.

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Sri Lanka) International Seminar on Computer Aided Analysis and Design of Structures (2000 Colombo. Modelling and analysis of structures in 2D, modelling and analysis of structures in 3D, design of RC beams and columns, integrated analysis and design of frames and buildings. Colombo: ACECOMS, 2000.

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Beton, Comite Euro-International Du. Rc Frames Under Earthquake Loading: State of the Art Report. Telford, 1996.

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Частини книг з теми "RC FRAMED BUILDING"

Mahato, Swarup, Diptojit Datta, Arunasis Chakraborty, and Anjan Dutta. "PCA Based Condition Assessment of RC Framed Building." In Lecture Notes in Mechanical Engineering, 289–99. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5693-7_20.

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Tenepalli, Prathyusha. "Pushover Analysis of RC Framed Building with Various Pile Group Configurations." In Lecture Notes in Civil Engineering, 359–70. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3371-4_32.

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Paul, Pradip, Prithwish Kumar Das, and Pradip Sarkar. "Studies on Identifying Critical Joints in RC Framed Building Subjected to Seismic Loading." In Advances in Structural Engineering, 977–88. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-2193-7_77.

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Nigam, Shivi, Meenu Sunil, Neha, and Navjeev Saxena. "SSI Effects on the Behavior of a Low-Rise RC Framed Building Including Foundation." In Lecture Notes in Civil Engineering, 299–310. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5673-6_24.

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Chatterjee, Arnab, and Heleena Sengupta. "Evaluation of Soil-Structure Interaction on RC Framed Irregular Building Under Varying Ground Conditions." In Lecture Notes in Civil Engineering, 291–303. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4045-5_25.

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Veerapandi, A., and J. Visuvasam. "Effect of Soil-Structure Interaction on Seismic Performance of RC Framed Building with Viscous Wall Dampers." In Lecture Notes in Civil Engineering, 235–46. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4005-3_19.

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Manohar, Sharad, and Suhasini Madhekar. "Frames and Diaphragms: Design and Detailing." In Seismic Design of RC Buildings, 199–267. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2319-1_6.

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Sinkovič, Klemen, Iztok Peruš, and Peter Fajfar. "Seismic Assessment of RC Frame Buildings." In Seismic Behaviour and Design of Irregular and Complex Civil Structures II, 89–97. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-14246-3_8.

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Sarkar, Pradip, Devdas Menon, and A. Meher Prasad. "Seismic Evaluation of RC Stepped Building Frames." In Proceedings of the International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012), 1183–93. India: Springer India, 2012. http://dx.doi.org/10.1007/978-81-322-0757-3_82.

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Baran, Mehmet, Murat Duvarci, Tugrul Tankut, Ugur Ersoy, and Guney Ozcebe. "Occupant Friendly Seismic Retrofit (OFR) of RC Framed Buildings." In Seismic Assessment and Rehabilitation of Existing Buildings, 433–56. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0021-5_20.

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Тези доповідей конференцій з теми "RC FRAMED BUILDING"

Nikolić, Ž., and M. Nikolić. "NON-LINEAR SEISMIC ANALYSIS OF RC FRAMED BUILDING DESIGNED ACCORDING TO EC-8." In 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2014. http://dx.doi.org/10.7712/120113.4781.c1224.

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Ugel, R., R. I. Herrera, J. C. Vielma, A. Barbat, and L. Pujades. "Seismic and structural response of a framed four level building with RC and steel structure designed according to current Venezuelan codes." In ERES 2013. Southampton, UK: WIT Press, 2013. http://dx.doi.org/10.2495/eres130091.

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Yeh, Yung-Hsin, and Wen-I. Liao. "Cyclic Performance of Two-Story Ductile RC Frames With Infill Walls." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71453.

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This paper presents the results of the experimental and analytical investigations conducted on four 0.8 scale 2-story one bay ductile reinforced concrete frames with infill nonstructural walls subjected to cyclically increasing loads. The material properties and the member sizes of beams and columns in the four RC frame specimens are identical, but with different types of infill nonstructural wall. These four frames are the pure frame, frame with short column, frame with short beam and frame with wing walls. The four RC frame specimens were designed and constructed according to the general prototype building structures in Taiwan. Test results indicate that the ductility behavior of the frames with infill wall is similar to those of the pure frame. The ultimate base shear strength of the frames with infill walls is higher than those of the pure frame. Analytical results show that the proposed simplified multi-linear beam-column element implemented in a general purpose structural analysis program can accurately simulate the cyclic responses of the RC frame specimen incorporating the elastic flexural stiffness computations suggested by the model building codes.

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Caruso, Claudia, Rita Bento, and José Miguel Castro. "Seismic risk assessment of an old RC frame-wall building in Lisbon." In IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/guimaraes.2019.1480.

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This study investigates the structural vulnerability of an old reinforced concrete dual wall-frame building structure, in Lisbon, Portugal. The building presents non-ductile behaviour and detailing typical of buildings designed before the introduction of modern seismic codes (pre– 1980). An analytical methodology is adopted in which multiple stripe analysis are performed on a three- dimensional model of the building. Fragility and vulnerability functions are developed for this structure, representative of a typology of old RC buildings. The fragility is derived taking into account the brittle shear failures of RC vertical members, i.e. columns and shear walls. The nonlinear dynamic analyses clearly indicate that these failure modes have a critical influence on the seismic performance of the structure. The results of this study can be used for seismic loss assessment and for the identification of appropriate mitigation strategies for this typology of existing RC buildings.

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Erdogan, Julien Erdem, Mauro Sartori, Michal Ambor, and Stefano Barone. "Base Isolation for Seismic Retrofitting of Flexible Residential Building." 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.2019.1029.

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Cities facing post-seismic event trauma frequently make the choice of base isolation technology for the retrofitting or reconstruction of their strategic facilities to guarantee the continuity of the services critical to their population. Consequently, most hospital and emergency buildings are base isolated in earthquake prone cities. On the contrary, the technology is very seldom used for residential buildings. In cities where a large part of the private housing building stock is made of 8 to 12-storey high RC frame buildings, two reasons are usually put forward to discard retrofitting by base isolation: the supposed high cost of the isolation system and its low efficiency due to its structural flexibility.Two recent case studies demonstrate the relevance of base isolation for the retrofitting of typical RC frame housing building. The design of the retrofitting of an 11-storey RC frame structure in Mexico City will first be presented. The second case study will detail the Moda Building in Istanbul, a 10-storey RC structure for which seismic retrofitting has recently been completed using base isolation.The base isolation retrofitting of these two flexible buildings will be detailed in this paper, demonstrating the efficiency of such a retrofitting solution for residential building, both in terms of cost and dynamic behavior..

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Aliyu, Ahmad Mubarak, and Adamu Kabiru. "Influence of infill wall in RC frames." In 22nd International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering, 2023. http://dx.doi.org/10.22616/erdev.2023.22.tf214.

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The function of infilled masonry reinforced concrete (RC) frame buildings during severe events such as blast caused by explosions or earth movement – earthquake and other significant lateral displacement could seriously damage a supporting frame column, causing the frame to collapse completely or partially. The behaviour of a framed structure associated with loss of supporting column as a result of vertical gravitational loading imbalance has received less attention in recent studies. When a supporting column is removed in a framed structure, it is assumed that the member deflection increases significantly, which could be restrained by the infill wall, resulting in contact forces between the infill wall and the frame. These interaction forces have an impact on the distributions of shear forces and bending moments along the frame components, which can contribute to frame stability or failure. The current study aims to address these key issues and gain insight into the performance of infilled-frame activity in the absence of a peripheral supporting column. This study’s methodology is based on a numerical investigation of a typical RC infilled-frame subjected to gravitational loading using the three-dimensional discrete element code (3DEC) model. The scenarios considered include; investigation of the loaded structure with the column in place, without the column in place but supported by an infilled wall and with the effect of lateral load acting on the structure without a peripheral column support. The results indicate that masonry infill walls considerably increase the frame resistance to vertical load action, compared to the resistance of a bare frame up to 18%, therefore, the infill wall could play a major role in maintaining the structural system stability/integrity and reducing the likelihood of a progressive collapse.

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Ni, Shuna, Ruben Van Coile, Danny Hopkin, Negar Elhami Khorasani, and Thomas Gernay. "Sensitivity Studies of the Resilience of RC Columns to Various Fire Scenarios." 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.2019.0732.

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Reinforced concrete (RC) structures generally fare well under fire, but exhibit damage and residual deformations which require repairs. Besides the repair cost, the building downtime can also be expensive. However, current fire design approaches focus solely on life safety, and do not consider resilience. To improve post-fire performance of buildings, recover functionality, and facilitate fast reuse, an important step is to develop a predictive capability for the effect of a fire event on residual deformations and load-bearing capacity in structures. This research investigates the residual deformations in RC buildings after a fire, with a focus on the columns as one of the key structural members. The case study is a five-story RC frame building with a fire developing on the first story. Thermo-structural finite element analyses were used to analyze the columns performance under various fires. The sensitivity of the RC columns’ responses to main parameters related to fire characteristics, material properties and mechanical loading was analyzed. Based on the sensitivity studies, the most critical parameters were determined for the vulnerability of the RC columns to the different fire scenarios. These critical parameters will be used for the subsequent probabilistic damage evaluation of the RC columns and their design alternatives. The results will contribute to improved understanding of the effects of fire on the resilience of RC buildings and infrastructure, as well as the identification of designs which provide enhanced post-fire performance.

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Li, Hong-Nan, and Gang Li. "Seismic Analysis and Design of RC Frame With New Metallic Dampers." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93467.

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Earthquake can make structures damaged and crumble. The traditional approach to seismic design has been based upon providing a combination of strength and ductility to resist the imposed loads. Thus, the level of the structure security cannot be achieved, because the disadvantage of the designing method is lack of adjusting capability subjected to an uncertain earthquake. The presence of some damping (energy dissipation) in buildings has been recognized and studied by professional researchers. Passive energy-dissipated system, as a category of vibration control methods, lead the inputting energy from earthquake to special element, thereby reducing energy-dissipating demand on primary structural members and minimizing possible structural damage. In this paper, a new idea of designing metallic damper is presented and realized through the improved dampers that are of a certain bearing forces in plane of plate and suitable energy-dissipating capability by making metallic dampers in different shapes. New types of metallic dampers are called as “dual functions” metallic damper (DFMD), because it not only provides certain stiffness in normal use for a building, but also are of good ability of the seismic energy-dissipation. The structural configuration and mechanical characteristics of the models and prototypes of the DFMDs are analyzed and experimented so as to verify the seismic performance of the dampers. Finally, the DFMDs applied to a new building in China are introduced and numerical results demonstrate the effectiveness of the DFMD.

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Purushothama, Chaithra, H. Sharada Bai, and G. Ambrish. "Seismic Behaviour of Six-Storied RC Residential Structure with Existing LLRS." 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.2018.0411.

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Using an appropriate structural system is critical to good seismic performance of buildings. While moment- frame is the most commonly used lateral load resisting structural system, addition of other structural systems like structural walls, frame-wall system improve the seismic resistance. Structural system chosen should be suitable for good earthquake performance, with vertical and horizontal members of lateral load resisting system (LLRS) that can carry earthquake effects safely during strong earthquake shaking. Studies on real structures, practically adopted are negligible. Present work deals with the comparison of seismic performance of the structural system under consideration with existing features (Lift core RC wall & Infill effect along the boundary walls) as LLRS in the building using response spectrum and time history method..

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Badini, Lorenzo, Cosimo A. de Stefano, and Alberto Custodi. "Seismic Strengthening of Existing RC Structure Through External 3D Exoskeleton." 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.2019.1017.

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The seismic hazard in the southern regions of Europe is known as one of the most critical issues when considering the improvement of the existing buildings in terms of energy and structural behavior. The use of integrated plug-and-play systems can be a solution to the most common obstacles occurring during the different phases in the building practices: from the design to the realization. Within the framework of the European project Pro-GET-onE, a case of structural strengthening obtained by applying a steel exoskeleton connected to the reinforced concrete (RC) structures of an existing building has been presented. The modelling, the linear and non-linear analyses were conducted with finite element software. They have been implemented for the pilot case of Athens, and the results have been achieved in relation to different parameters such as PGA, shear exploitation and displacement in the plastic phase. This approach determines an increase in the global stiffness of the structural system with a consequent reduction in displacements. Depending on the actual plasticization of the RC frames, the resulting excursion in the plastic phase of the exoskeleton is proven to provide a dissipation of extra energy and a stiffness increase in the existing building.

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