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Dissertations / Theses on the topic 'Bridges'

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Author: Grafiati

Published: 4 June 2021

Last updated: 9 March 2023

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1

Hirachan, Jasmeen. "Development of experimental influence lines for bridges." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 1.88 Mb., 91 p, 2006. http://wwwlib.umi.com/dissertations/fullcit/1435843.

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2

Ross, Justin Henry. "Evaluating ultimate bridge capacity through destructive testing of decommissioned bridges." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 154 p, 2007. http://proquest.umi.com/pqdweb?did=1338919151&sid=8&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Thesis (M.C.E.)--University of Delaware, 2007.
Principal faculty advisors: Michael J. Chajes and Jennifer Righman McConnell, Dept. of Civil & Environmental Engineering. Includes bibliographical references.

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3

Donnée, Nicole Elizabeth Hughes Mary Leigh. "Automated screening tool for the stability of highway bridges subject to scour." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Civil_Engineering/Thesis/Donnee_Nicole_6.pdf.

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4

Nelson, James Lee. "Behavior of GFRP Bridge Decks for Highway Bridges." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-12022005-144948/.

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This research presents the results of an experimental program undertaken at the North Carolina State University (NCSU) Constructed Facilities Laboratory (CFL) to evaluate the performance of a new innovative glass fiber reinforced polymer (GFRP) bridge deck. This bridge deck is produced commercially by Martin Marietta Composites of Raleigh, NC under the trade name of DuraSpan. The experimental program involved examining the behavior of 5.00 inch deep and 7.66 inch deep DuraSpan bridge deck profiles. The program included numerous quasi-static flexural tests, testing of connection details to facilitate the development of a railing system, evaluation of the performance of the bond lines in negative moment regions, and an evaluation of the coefficient of thermal expansion. A finite element model was developed to predict the stiffness of the bridge deck at service load levels. Finite element optimization techniques were used in conjunction with coupon test data and the large scale flexural test data to calibrate the model.

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5

Li, Zhenhu, and 李振虎. "Damage identification of bridges from signals measured with a moving vehicle." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206353.

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Identifying damage of a bridge from a vehicle moving over it is an attractive idea especially for those bridges without structural health monitoring systems as it is faster than putting sensors on the bridges. Many parts of highways and railways have been constructed on bridges and it is important to ensure that they are in good conditions. Therefore a large amount of bridges need to be monitored and for the sake of economy the monitoring should be efficient. If an instrumented vehicle can identify the occurrence and locations of damage by running over the bridges, it would save a lot of labor and time. As acceleration is easier to acquire, it is used as the main signal for damage detection. Research in this area is relatively little, not to mention the need to take into account road surface roughness and experimental verification. Frequencies can be conveniently extracted from the vehicle response. The damage can hence be identified based on the relationship between the change of frequencies and the fractional change of strain energy. A vehicle-bridge interaction system is used to simulate the process of a vehicle running over a bridge and obtain the vehicle response for investigation. The proposed method can identify damage of simply supported and multi-span continuous bridges taking into account road surface roughness and measurement noise. They are also validated in the laboratory where a simply supported bridge is modeled using an aluminum beam and the vehicle is modeled with aluminum vehicles. This method can limit the damage location to two potential locations. The multi-level multi-pass strategy makes use of the identification from the above method, applies genetic algorithm and lets the vehicle run over the bridge at various speeds. The unique damage location can then be identified. A numerical study for simply supported bridges and multi-span continuous bridges has verified its effectiveness. Continuous wavelet transform (CWT) can identify local changes in a signal as damage is assumed to cause local change to the vehicle response, which makes it suitable for damage detection from vehicle response. However, the road surface roughness and measurement noise often mask the information about damage. Smoothing technique and damage indicators are proposed to help with the identification. By validating the method with a numerical vehicle-bridge interaction system and model tests in the laboratory, the damage can be correctly identified. Additional masses and sinusoidal excitation force can help with the identification too. Repeated application of CWT involves applying the CWT to the coefficients of continuous wavelet again and again, which can also improve the results. If CWT is treated as a mathematical microscope, repeated application of CWT is like amplifying the signal several times. The effectiveness of the method has been verified numerically and experimentally. In summary, a convenient and efficient technique to test the conditions of bridges by putting sensors on a moving vehicle is proposed and the method is verified by numerical and experimental studies. It can provide an alternative or a useful complement to conventional structural health monitoring systems.
published_or_final_version
Civil Engineering
Doctoral
Doctor of Philosophy

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6

Snedeker, Katherine O. "Evaluation of performance and maximum length of continuous decks in simple-span bridges." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28210.

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7

Sugioka, Koichi. "Life cycle evaluation of fatigue mitigation for orthotropic steel bridge decks." Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2009. http://hdl.handle.net/10092/3232.

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Bridges with orthotropic steel decks have been built across the world over the past 60 years because they provide high strength and stiffness at a relatively low cost. However, a number of these bridges have sustained fatigue fractures. The investigation described in this thesis was carried out in order to identify cost-effective fatigue crack mitigation techniques by using the deck surfacing to reduce the stresses in the steel deck. Epoxy asphalt with an expanded metal mesh was investigated with small- and large-scale laboratory tests. Finite element analyses were also performed. The small scale tests conducted at different temperatures and loading frequencies showed that asphalt stiffness increased with decreasing temperature and faster loading. The expanded metal mesh in the epoxy asphalt layer noticeably increased asphalt stiffness. In the large scale tests and finite element analyses, critical loading positions to cause stress concentrations at the fatigue prone rib-to-deck welded connections were determined with different tyre configurations. The stress reduction due to the deck surfacing was estimated for the critical loading positions. The full scale test specimen was subjected to actual truck tyres. With the effectiveness of mitigation techniques for fatigue cracks on orthotropic steel bridge decks known, a probability-based fatigue lifetime evaluation methodology using Monte Carlo simulation was developed. The deck surfacing effects with seasonal and hourly temperature variations were considered. The fatigue lifetime extension using the epoxy asphalt was quantified. For a particular bridge, cost-effective maintenance scenarios were investigated. A simple calculation method for fatigue lifetime was introduced for engineers or bridge owners to assist understanding of decision support tool concepts.

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8

Ding, Qiang. "Buffeting analysis of cable-supported bridges under turbulent wind in time domain /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21106538.

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9

Williams, Melissa. "A plan for the long-term performance of bridges." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 229 p, 2007. http://proquest.umi.com/pqdweb?did=1251904781&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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10

Krajewski, Joseph E. "Bridge inspection and interferometry." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-050406-092613/.

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11

Mao, Guofeng. "Thermal bridges." Doctoral thesis, KTH, Byggnader och installationer, 1997. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2609.

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12

BASU, BIKRAMADITYA. "ACCELERATED CONSTRUCTION AND REHABILITATION OF BRIDGES." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1116044680.

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13

Huang, Jun. "Evaluating bridge performance load rating bridges without plans and experimental displacement influence lines /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 307 p, 2007. http://proquest.umi.com/pqdweb?did=1251904751&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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14

Sawyer, Alvin Douglas Ramey George E. "Determination of hurricane surge wave forces on bridge superstructures and design/retrofit options to mitigate or sustain these forces." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Civil_Engineering/Thesis/Sawyer_Alvin_17.pdf.

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15

Bechtel, Andrew J. "Destructive testing and ultimate capacity of skewed simple-span bridges." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 251 p, 2008. http://proquest.umi.com/pqdweb?did=1654493651&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Thesis (M.C.E.)--University of Delaware, 2008.
Principal faculty advisors: Michael J. Chajes and Jennifer Righman McConnell, Dept. of Civil & Environmental Engineering. Includes bibliographical references.

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16

Franco, Jason M. "Design and field testing of jointless bridges." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=713.

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Thesis (M.S.)--West Virginia University, 1999.
Title from document title page. Document formatted into pages; contains x, 209 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 192-198).

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17

Lee, Suk-mei Minerva. "What is a bridge? : a live walking: create new bridges experience /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B34612336.

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18

Jinka, Chandra Sekhar. "Dynamic response evaluation of fiber reinforced composite bridge decks and bridges." Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=3182.

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Thesis (M.S.)--West Virginia University, 2003.
Title from document title page. Document formatted into pages; contains xvi, 167 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 144-148).

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19

Brody, Alex. "Bridge employment: Can occupational self-efficacy determine which bridges are crossed?" CSUSB ScholarWorks, 2005. https://scholarworks.lib.csusb.edu/etd-project/2618.

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A conceptual model examining the antecedents and outcomes of occupational self-efficacy among the older workforce is presented. Proposed antecedents to occupational self-efficacy included self-perceived stereotypes and work demands.

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20

Belyea, Michael Ross. "The choice of alternatives in the replacement of the Lion's Gate Bridge." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0019/MQ37484.pdf.

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21

Matta, Fabio. "Innovative solutions in bridge construction, rehabilitation, and structural health monitoring." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.umr.edu/thesis/pdf/MattaPhD_Dissertation_09007dcc8038f8b1.pdf.

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Thesis (Ph. D.)--University of Missouri--Rolla, 2007.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed November 15, 2007) Includes bibliographical references.

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22

Chan, Tai-fung Sandy. "Landscape evaluation for Hong Kong-Zhuhai-Macau Bridge." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B4266455X.

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Thesis (M. L. A.)--University of Hong Kong, 2009.
Includes special report study entitled: The aesthetic design of road and bridge landscapes. Includes bibliographical references. Also available in print.

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23

Alexander, Adam Ross Washer Glenn A. "Guideline for implementing quality control and quality assurance for bridge inspection." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6560.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on October 13, 2009). Thesis advisor: Dr. Glenn Washer. Includes bibliographical references.

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24

Carver, Kathleen C. "Repurposing Industrial Railroad Bridges: Linking the Past to the Present." Youngstown State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1403195362.

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25

Daniels, Joslyn B. Ramey George E. "Flood debris build-up loading and assessment of adequacy of ALDOT bridge pile bents during extreme flood/scour events." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/master's/DANIELS_JOSLYN_47.pdf.

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26

Abbott, Jennifer Lynn. "Fields and bridges." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/3586.

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Thesis (M.F.A.) -- University of Maryland, College Park, 2006.
Thesis research directed by: Dept of English. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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27

Pebley, Aaron James. "Bending stresses in stay-cables during large-amplitude vibrations a Fred Hartman Bridge case study /." Full-text Adobe Acrobat (PDF) file, 2005. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Pebley,%20Aaron.pdf.

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28

Hobson, Paul Myron. "Rheologic and flume erosion characteristics of georgia sediments from bridge foundations." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26660.

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Thesis (M. S.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2009.
Committee Chair: Sturm, Terry; Committee Member: Burns, Susan; Committee Member: Webster, Donald. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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29

Karuna, R. "Structural modelling of suspension bridges with particular reference to the humber bridge." Thesis, Brunel University, 2002. http://bura.brunel.ac.uk/handle/2438/5191.

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The purpose of this research was to investigate the parameters that influence the structural behaviour of a specific suspension bridge, The Humber Bridge. Three finite element computer models of increasing complexity were created for the analyses. They were validated against field measurements for both static and dynamic loading, and good correlation was obtained. The programs were used to a) Assess the integrity of the bridge as a whole were three failures of certain individual elements, such as a hanger falling under vehicle impact; b) Determine the influence of the sizing of individual components, such as deck plate thickness or main cable diameter, on overall behaviour; c) ascertain the capability of the structure to cope with loading (traffic, wind orthermal), above the original design values; and d) consider the performance of the bridge had other configurations of hangers been adopted in the original design. From the results of this work, recommendations are made which could influence the future design of long-span suspension bridges.

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30

Valle, Blandine C. "Effects of long duration earthquakes on bridge structures." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Thesis/Fall2005/b%5Fvalle%5F110805.pdf.

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31

Liu, Jian. "Understanding bridge performance through integrated modeling and monitoring." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 199 p, 2007. http://proquest.umi.com/pqdlink?did=1251904741&Fmt=7&clientId=79356&RQT=309&VName=PQD.

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32

Deshmukh, Pritam. "Data uncertainity in bridge management." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4510.

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Thesis (M.S.) University of Missouri-Columbia, 2006.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 20, 2007) Vita. Includes bibliographical references.

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33

Guan, Hong. "Vibration-based structural health monitoring of highway bridges." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 2006. http://wwwlib.umi.com/cr/ucsd/fullcit?p3211821.

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34

Meadway, Jeremy M. "Evaluation of current deck design practices." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5891.

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Thesis (M.S.)--West Virginia University, 2008.
Title from document title page. Document formatted into pages; contains v, 105 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 102-105).

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35

Rakowski, Michael D. "Bridge evaluation using in-service and weigh-in-motion data." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 184 p, 2009. http://proquest.umi.com/pqdweb?did=1654493661&sid=2&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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36

Alqennah, Hasan. "Detection of subsurface anomalies in composite bridge decks using infrared thermography." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1467.

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Thesis (M.S.)--West Virginia University, 2000.
Title from document title page. Document formatted into pages; contains x, 85 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 83-85).

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37

Cheng, Yuansheng. "Vibration analysis of bridges under moving vehicles and trains /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2198184X.

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38

Hevener, Wesley D. "Simplified live-load moment distribution factors for simple span slab on I-girder bridges." Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=3103.

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Thesis (M.S.)--West Virginia University, 2003.
Title from document title page. Document formatted into pages; contains x, 141 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 137-141).

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39

Wu, Haiyong. "Influence of live-load deflections on superstructure performance of slab on steel stringer bridges." Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=3117.

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Thesis (Ph. D.)--West Virginia University, 2003.
Title from document title page. Document formatted into pages; contains xx, 332 p. : ill. (some col.), map. Includes abstract. Includes bibliographical references (p. 256-264).

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40

Hashemidehaghi, Sogol. "The Isfahan's inhabited arch bridges." Master's thesis, Universidade de Évora, 2019. http://hdl.handle.net/10174/27681.

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Ispahan est l’une des villes historiques qui se trouve au centre d'Iran. La ville est célebre pour sa belle architecture islamique. ses ponts couverts, ses mosquées uniques et ses minarets. Cela a fait d'lspahan le titre de "la moitié du monde " dans la culture populaire. Les cinq ponts historiques Zayandeh Rud à lspahan sont un chef-d'oeuvre de l'architecture iranienne, conçus non seulement pour le passage des individus. mais aussi pour traverser les confins de ce monde. la compréhension des valeurs matérielles et imnmatérielles existant dans les ponts historiques d'Ispahan afin. deles protégeres l’un des objectifs principaux de cette thèse. La compréhension des techniques de construction des ponts-arcades à lspahan et ses changements au fil du temps est autre buts de cette recherche qui montre l'intelligence et les talents des lraniens dans la construction de ponts. non seulement en tant que lieu de passage. mais également en tant que lieu de réflexion, de divertissement et de rassemblement, ainsi qu'une structure technique telle que barriêre permettant de contrôler l'écoulernent d'eau; Abstract: lsfàhan is one of the historic cities in the center of lran. This city is the third most populated city of lran which is also rich in history, art and architecture. The largest river of lranian Plateau in central part Iran which name is Zayandeh-Rud also crosses Isfahan and from the past to the present day, this river played an important role in the formation of the civilization and development of the city of lsfàhan. Therefore, due to the constant development of Isfahan throughout history, as well as the existence of a Zayandeh-Rud flow, numerous bridges were built with a various function in this city. These bridges were designed to connect water, wind, nature and the human being in a particular architectural concept. They were not just designed for passage of the individuals or just for connecting two banks of river, but their purpose was also to link spiritual advancernent and human understanding. They have been designed in the way which makes the pedestrians to stay, watch the beauty of nature, listen to it and think. Since the Isfahan’s bridges have different functions, they can be categorized into inhabited bridges.

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41

Peterson, Scott Thomas. "Experimental response and analysis of the Evergreen Point Floating Bridge." Connect to this title online, 2002. http://www.dissertations.wsu.edu/dissertations/Fall2002/s%5Fpeterson%5F102102.pdf.

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Hui, Ming-chun Cindy. "Pedestrian HarbourLink." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25946377.

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Thesis (M. Arch.)--University of Hong Kong, 1998.
Includes special report study entitled: Pedestrian network : an adaptive integration of elevated walkway system in Hong Kong. Includes bibliographical references.

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43

Su, Danna. "SEISMIC PERFORMANCE OF HIGHWAY BRIDGES SUBJECTED TO STRONG EARTHQUAKES CONSIDERING VEHICLE-BRIDGE INTERACTION." Kyoto University, 2018. http://hdl.handle.net/2433/232014.

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44

Bapat, Amey Vivek. "Influence of Bridge Parameters on Finite Element Modeling of Slab on Girder Bridges." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/36105.

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The present study is part of the Long Term Bridge Performance Program (LTBP) funded by the Federal Highway Administration. The objectives of this program are to create a comprehensive database of quantitative information of the long-term performance of selected pilot bridges and to develop a methodology to assess bridge performance. Finite element (FE) modeling of the pilot bridges is an intrinsic part of the LTBP program and is intended to not only assist with instrumentation decisions, but also to provide further insight into the behavior of these bridges, which cannot be achieved solely from field testing of the bridges. This thesis provides a comprehensive study of a plethora of issues associated with the development of reliable and accurate FE models of bridges. The first objective of this investigation was to develop reliable finite element models with a variety of levels of refinement and to study the effect of the inclusion of various bridge parameters in the model, such as bridge skew, degree of composite action, thermal gradient and level of support restraint, on the response of bridges. First, the suitability of different modeling techniques and of elements used to model the primary bridge components was assessed using simple models for which analytical solutions are readily available. From these studies, it was concluded that shell elements are adequate to model the bridge deck, and beam and shell elements are both satisfactory to model the bridge girders. From the dynamic analyses of theWildcat Creek River Bridge and the Colquitz River Bridge, flexural modes of vibration were found to be highly sensitive to support restraints and to how the guardrails were modeled and less sensitive to the inclusion of bracing and thermal gradients in the model. The finite element models using extreme boundary conditions were successful in bracketing the field response. The factors identified from these analyses were considered in the analysis of the Virginia pilot bridge. Different support restraints, and the inclusion of skew and level of composite action in the model had noticeable impact on both the static and dynamic responses of the bridge. The results from these analyses were used to assist with instrumentation decisions prior to field-testing. The developed model will also be used to help researchers further understand the bridgeâ s behavior and to help explain a variety of phenomena observed in the field.
Master of Science

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45

Menkulasi, Fatmir. "Development of a Composite Concrete Bridge System for Short-to-Medium-Span Bridges." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/50413.

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The inverted T-beam bridge system provides an accelerated bridge construction alternative for short-to-medium-span bridges. The system consists of adjacent precast inverted T-beams finished with a cast-in-place concrete topping. The system offers enhanced performance against reflective cracking, and reduces the likelihood of cracking due to time dependent effects. The effects of transverse bending due to concentrated wheel loads are investigated with respect to reflective cracking. Transverse bending moment are quantified and compared to transverse moment capacities provided by a combination of various cross-sectional shapes and transverse connections. A design methodology for transverse bending is suggested. Tensile stresses created due to time dependent and temperature effects are quantified at the cross-sectional and structure level and strategies for how to alleviate these tensile stresses are proposed. Because differential shrinkage is believed to be one of the causes of deck cracking in composite bridges, a study on shrinkage and creep properties of seven deck mixes is presented with the goal of identifying a mix whose long terms properties reduce the likelihood of deck cracking. The effects of differential shrinkage at a cross-sectional level are numerically demonstrated for a variety of composite bridge systems and the resistance of the inverted T-beam system against time dependent effects is highlighted. End stresses in the end zones of such a uniquely shaped precast element are investigated analytically in the vertical and horizontal planes. Existing design methods are evaluated and strut-and-tie models, calibrated to match the results of 3-D finite element analyses, are proposed as alternatives to existing methods to aid designers in sizing reinforcing in the end zones. Composite action between the precast beam and the cast-in-place topping is examined via a full scale test and the necessity of extended stirrups is explored. It is concluded that because of the large contact surface between the precast and cast-in-place elements, cohesion alone appears to provide the necessary horizontal shear strength to ensure full composite action. Live load distribution factors are quantified analytically and by performing four live loads tests. It is concluded that AASHTO's method for cast-in-place slab span bridges can be conservatively used in design.
Ph. D.

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46

Rodriguez, Leo E. "Temperature Effects On Integral Abutment Bridges For The Long-Term Bridge Performance Program." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1221.

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The United States Department of Transportation (US-DOT) Federal Highway Administration (FHWA) initiated in 2009 the Long-Term Bridge Performance (LTBP) program to gather high-quality data on a representative sample of bridges over a twenty-year period of time. The goal of this program is to quantify how bridges behave during their service life while being exposed to different types of loadings and deterioration due to corrosion, fatigue and various climate conditions along with their corresponding maintenances. The data gathered will result in the creation of databases of high quality data, acquired through long-term instrumentation, to be used for improved design practices and effective management of infrastructures by employing best practices for maintenance. As part of the LTBP Program two integral abutment bridges, a California Bridge near Sacramento, CA and a Utah Bridge near Perry, UT, were selected to be monitored for temperature changes as well as to undergo periodic live-load testing. Live-load testing included slowly driving a truck over the bridges. The bridges were instrumented to collect test data and use it to calibrate a finite-element model. This finite-element model was used to determine the actual bridge behavior and compare it with the AASHTO LRFD Specifications. This thesis also examined how different parameters such as thermal gradients, mean temperature, and end-rotation affect these two integral abutment bridges.

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Bensi, Michelle T. "Generalized assessment of bridge vulnerability to terrorist threats a probabilistic structural analysis based approach /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 8.47 Mb., 191 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1435875.

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Hayes, Matthew Brendan. "Assessing the vulnerability of Delaware's coastal bridges to hurricane forces." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 77 p, 2009. http://proquest.umi.com/pqdweb?did=1654493681&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Li, Dekun. "Seismic hazard analysis for bridge design in the Hong Kong region /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23436049.

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加藤, 信哉. "Books, Bytes and Bridges." 名古屋大学附属図書館研究開発室, 2003. http://hdl.handle.net/2237/11079.

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