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Rozprawy doktorskie na temat „Girders”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Zaoui, Ahlem. "Finite element modeling of post-tensioned box girder bridges." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/20196.

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2

Ghose, Dhrubajyoti. "Finite element formulation of a thin-walled beam with improved response to warping restraint." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-12052009-020042/.

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3

Burrell, Geoffrey Scott. "Distortional buckling in steel I-girders." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 143 p, 2007. http://proquest.umi.com/pqdweb?did=1338867451&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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4

Cordahi, Irene A. "Reliability of corroded steel bridge girders." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34600.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2006.<br>Includes bibliographical references (leaves 39-40).<br>Corrosion is one of the main causes of deterioration of bridges. Structures exposed to harsh environmental conditions are subjected to time-variant changes of their load-carrying capacity. Thus, there is a need for an evaluation to accurately assess the actual condition and predict the remaining life of a structure. System reliability can be used as an efficient tool in evaluation of existing structures. The traditional approach

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5

Piotter, Jason Matthew. "Longitudinal Slab Splitting in Composite Girders." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/31765.

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Longitudinal slab splitting in composite hot rolled girders and joist girders was investigated. Two different type of framing configurations were studied with two tests conducted per configuration. The framing configurations were designated as either flush-framed or haunched, which describes the framing of the joists into the joist girders or H-shape. Each floor system consisted of at least one exterior or spandrel joist girder, one interior joist girder, and in three of the four tests, an exterior or spandrel H-shape. The nominal lengths of the girders were 30 ft 4 in. with a centerline s

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6

Kabani, Matongo. "The behaviour of curved hybrid girders." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/18997.

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Includes bibliographical references.<br>Curved girders are used in bridges to fit predefined alignment. Hybrid girders are an innovative use of high strength steel enabling optimising moment capacity. Previous studies of curvature and hybrid girder effects have been disjointed, focusing on curved homogeneous girders and straight hybrid girders. There are no generally accepted curved girder equations and this has implications in the study of curved hybrid girders since the hybrid effects become apparent in the inelastic range. Furthermore, the range of radius to span ratio where available analy

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7

Lam, Hin Chung. "The analysis of aluminium plate girders." Thesis, Cardiff University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603501.

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8

Angomas, Franklin B. "Behavior of Prestressed Concrete Bridge Girders." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/405.

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For this research, prestress losses were monitored in six HPC bridge girders. These measured losses were compared to predicted losses according to four sources. Prestress loss predictive methods considered for this research were: 1- AASHTO LRFD 2004, 2- AASHTO LRFD 2004 Refined, 3- AASHTO LRFD 2007, and 4- AASHTO LRFD Lump Sum method. On the other hand, the camber prediction methods used in the present research were: 1- Time dependent method described in NCHRP Report 496, 2- PCI multiplier method, and 3- Improved PCI Multiplier method. For the purpose of this research, long-term prestress loss

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9

El, Metwally Ahmed Salah. "Prestressed composite girders with corrugated steel webs." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0006/MQ38626.pdf.

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10

Burt, C. A. "The ultimate strength of aluminium plate girders." Thesis, Bucks New University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376618.

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11

Han, Hyoseop. "LRFD design of plate girders for buildings." Thesis, Kansas State University, 1985. http://hdl.handle.net/2097/9846.

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12

Ahmad, M. K. M. "Shear lag effect in composite box girders." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237869.

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13

Palamadai, Subramanian Lakshmi Priya. "Flexural resistance of longitudinally stiffened plate girders." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54436.

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AASHTO LRFD requires the use of longitudinal stiffeners in plate girder webs when the web slenderness D/tw is greater than 150. This practice is intended to limit the lateral flexing of the web plate during construction and at service conditions. AASHTO accounts for an increase in the web bend buckling resistance due to the presence of a longitudinal stiffener. However, when the theoretical bend buckling capacity of the stiffened web is exceeded under strength load conditions, the Specifications do not consider any contribution from the longitudinal stiffener to the girder resistance. That is,

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14

Campbell, Tara. "Prestressed Steel Girders for Two Span Bridges." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1447690927.

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15

Owusu-Danquah, Josiah Sam. "SHEAR FORCE DISTRIBUTION IN STEEL BRIDGE GIRDERS." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1142.

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Most engineers use empirical formulas stated in the American Association of State Highway and Transportation Officials (AASHTO) code to design various bridge projects. Recent research suggests that the distribution factors which result from the American Association of State Highway and Transportation Officials Load Resistance Factor Design (AASHTO LRFD) are overestimated or underestimated in various load cases when compared with finite element analysis. This paper will present a comparison between the shear live load distribution factors of a simple span concrete slab on steel girders bridge b

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16

Liu, Chao. "On the stabilization and related problems of beams /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B35134550.

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17

Zettlemoyer, Michael Joseph. "Evaluation of the service II limit state for AASHTO elastic and moment redistribution procedures." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 169 p, 2007. http://proquest.umi.com/pqdweb?did=1338919171&sid=7&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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18

Wang, Phillip Hua-Kuan. "The applications of component mode analysis on the response characteristics of a flexible connected beam." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/17572.

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19

Gonidou, Luc-Olivier. "Active control of flexural power flow in elastic thin beams." Thesis, This resource online, 1988. http://scholar.lib.vt.edu/theses/available/etd-09052009-040314/.

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20

Oleksuk, Lynda Lee Sensmeier. "The influence of time-dependent material behavior on the response of sandwich beams." Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03122009-040737/.

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21

Shyu, In-Ming Kevin. "Forced, nonlinear, planar and nonplanar oscillations of a cantilvered beam including static deflection." Diss., This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-06062008-171257/.

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22

Jimenez, Chong Juan Manuel. "Construction engineering of steel tub-girder bridge systems for skew effects." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43583.

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The torsional rigidity of tub-girder makes them ideal for use in curved bridges. The use on skewed support applications by bridge designers is limited as the behavior is complex and requires the use of advanced analysis tools. In consequence, a simplified analysis method to account for the effects of skew on tub-girder twist rotations and internal torques and how these affect the internal component forces was proposed. The combined effects of skew and curvature are studied by examining the results for analysis with different levels of sophistication for 18 representative bridges. The data gene

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23

Kayser, Caroline Rose. "High performance steel bridge girders performance & design /." Cincinnati, Ohio : University of Cincinnati, 2005. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1138240938.

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Thesis (Ph. D.)--University of Cincinnati, 2005.<br>Title from electronic thesis title page (viewed Aug. 7, 2006). Includes abstract. Keywords: High Performance Steel; HPS; Bridge; Steel Bridge; Girder; HPS-70W; bolt; weld; NGI-ESW; SAW; fatigue; tensile; toughness; inelastic; moment redistribution; autostress. Includes bibliographical references.

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24

Hui, Macarious Kin Fung. "Anchorage of stirrups in prestressed concrete I-girders." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57783.

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The current research investigates the performance of commonly-used non-code-compliant stirrup detailing in concrete I-girder bridges, specifically when the lower hooks on the stirrups are oriented parallel to the longitudinal prestressing strands and are not bent around any longitudinal bars. Such detailing does not meet the specifications in the Canadian Highway Bridge Design Code CSA S6-06. An experimental investigation was conducted on full-scale partial sections of a concrete I-girder to evaluate the performance of such non-code-compliant stirrup anchorages by comparing their performance t

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25

Adams, David Edwin. "On the gracefulness of girders and big wheels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ40021.pdf.

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26

Aydemir, Murat E. "Moment shear interaction in HPS hybrid plate girders." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/20968.

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27

Lemay, Lionel. "Repair of prestressed concrete bridge girders for shear." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65943.

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28

Wong, Samuel Sun-Wing. "Collapse behaviour of micro-concrete box girders bridges." Thesis, City University London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264246.

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29

Tong, Wenxia 1958. "Finite element analysis of continuous prestressed composite girders." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277224.

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Prestressing a steel girder reduces the required structural steel weight, limits tension stresses in the section, increases the ultimate strength, and increases the fatigue resistance. The technique of prestressing with tendons can be used for strengthening of existing bridges as well as for construction of new bridges. This thesis presents an analytical study of the behavior of simply-supported and continuous prestressed composite girders and describes the benefits of prestressing steel in composite construction. Analytical models are developed and used as a basis for a computer program that

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30

Bhutto, Muhammad Aslam. "FRP-strengthening of webs of steel plate-girders." Thesis, Heriot-Watt University, 2014. http://hdl.handle.net/10399/2814.

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Fibre-reinforced polymer, FRP, composites have been used successfully for the strengthening and repair of steel beams in order to increase the flexural strength of the beams by up to 40%. However, little attention has been given to the use of FRP composites to increase the ultimate strength of steel plate-girders where failure is initiated by shear buckling of the slender webs. This thesis presents the details and results of an experimental and numerical investigation in which the web panels of the steel plate-girders were strengthened either by bonding GFRP pultruded section stiffeners or lay

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31

Scott, Jana. "Interface Shear Strength in Lightweight Concrete Bridge Girders." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/33922.

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Precast girders and cast-in-place decks are a typical type of concrete bridge construction. A key part of this type of construction is developing composite action between the girder and deck. In order to develop composite action, adequate horizontal shear resistance must be provided at the interface. As lightweight concrete is increasingly being used in bridge designs, it is important to understand the horizontal shear behavior of lightweight concrete. The current AASHTO LRFD Specification provides design equations for horizontal shear strength of both lightweight and normal weight concrete.

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32

KAYSER, CAROLINE ROSE. "HIGH PERFORMANCE STEEL BRIDGE GIRDERS: PERFORMANCE & DESIGN." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1138240938.

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33

Sayed, Sameer. "Behavioral study of ultra high performance concrete girders." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1820.

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Thesis (M.S.) -- University of Maryland, College Park, 2004.<br>Thesis research directed by: Dept. of Civil and Environmental Engineering. 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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34

Machimdamrong, Chawalit. "Analytical studies on girders with corrugated steel web." 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/147632.

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35

Wilkinson, Kym. "Capacity evaluation and retrofitting of timber bridge girders." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/20706/1/Kym_Wilkinson_Thesis.pdf.

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Bridges form a vital link in the physical infrastructure and must be maintained in a "safe working order" at all times. It is estimated that there are currently 20,000 timber road bridges in service throughout Australia. Increasing demands on these bridges due to heavier and faster moving loads, together with deterioration are placing these aging structures at a higher risk of collapse. Unfortunately, many local governments and government departments have neglected the benefits of preventative maintenance and have opted for "just in time" repairs. This is especially true for timber bridges. Th

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36

Wilkinson, Kym. "Capacity evaluation and retrofitting of timber bridge girders." Queensland University of Technology, 2008. http://eprints.qut.edu.au/20706/.

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Bridges form a vital link in the physical infrastructure and must be maintained in a "safe working order" at all times. It is estimated that there are currently 20,000 timber road bridges in service throughout Australia. Increasing demands on these bridges due to heavier and faster moving loads, together with deterioration are placing these aging structures at a higher risk of collapse. Unfortunately, many local governments and government departments have neglected the benefits of preventative maintenance and have opted for "just in time" repairs. This is especially true for timber bridges. Th

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37

Subramaniam, Mahesh Kumar. "A computer implementation of the static and dynamic analysis of induced strain actuated beams." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-01242009-063044/.

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38

Jayne, Allen A. "Inelastic rotation requirements of two-span continuous bridge girders." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 7.08 Mb., p. 153, 2005. http://proquest.umi.com/pqdlink?did=1042538801&Fmt=7&clientId=8331&RQT=309&VName=PQD.

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39

Haines, Robert Anthony. "Shear Testing of Prestressed High Performance Concrete Bridge Girders." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7120.

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This report details the design and construction of an AASHTO Type IV prestressed girder and a PCI BT-56 prestressed girder. It also details the shear testing and shear performance of the BT-56 girder. The results are compared with results from previous research dating back to 1986. Finally, all research was compared with the AASHTO Standard (2002), AASHTO LRFD (1998) and AASHTO LRFD (2004) Specifications to examine thier overall accuracy in predicting shear strengths.

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40

Kelly, Patrick James. "Bearing Zone Cracking of Precast Prestressed Concrete Bridge Girders." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14555.

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This thesis presents the results of a research project that tested five friction reducing techniques on the bearing ends of precast prestressed concrete bridge girders. The five techniques were the following: an oil coated surface, embedded steel plate with an oil coated surface, embedded steel angle with an oil coated surface, teflon pad, and a wax lubricant.

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41

Fraser, Robert E. K. "Behaviour of distortion-induced fatigue cracks in bridge girders." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0004/MQ59805.pdf.

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42

Sun, Jianhui. "Probabilistic analysis of reinforced concrete bridge girders under corrosion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0004/MQ42210.pdf.

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43

Weaver, Craig Aaron. "Behavior of FRP-Reinforced Glulam-Concrete Composite Bridge Girders." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/WeaverCA2002.pdf.

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44

Khorasani, Milad. "Rapid design of steel monosymmetric plate and box girders." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/28007.

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This thesis deals with the design process for steel plate girders and box girders. The design of plate girders is quite prescriptive. A more fundamental approach is required for the design of box girders. Equations explicitly for the design of plate and box girders are heavily influenced by empirical data. This work considers pure steel box girders only, and does not include the design of composite box girder sections. CAN/CSA-S6-00 “Canadian Highway Bridge Design Code” provides detailed design requirements for these composite girders. The design of plate girders follows mostly the requireme

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45

Brown, K. E. P. "The post-buckling and collapse behaviour of aluminium girders." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539788.

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46

Mahmood, Osamah Ibrahim. "CAMBER CONTROL IN SIMPLY SUPPORTED PRESTRESSED CONCRETE BRIDGE GIRDERS." UKnowledge, 2013. http://uknowledge.uky.edu/ce_etds/7.

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When designing a bridge, serviceability usually controls and is a more important factor than the ultimate capacity of the bridge or the allowable stresses. Therefore, the behavior of the bridge girder deflection and camber must be predicted as accurately as possible. Therefore, excessive camber has become one of the most common problems when constructing concrete bridges. Different methods have been developed to overcome this problem. The most common and widely used is using haunch with adjustable pedestals to overcome the excessive camber. However, this method has limitations that must be con

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47

Keraga, Cody Simon. "Development of camber multipliers for precast prestressed box girders." Thesis, University of Colorado at Denver, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10112622.

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<p>This thesis addresses the difference between design camber predictions using the Precast/Prestressed Concrete Institute (PCI) methodology and constructed camber predictions for precast prestressed box girders. Existing bridges constructed with box girders with a range of spans, depths, sections, and fabricators are field measured for camber. A statistical analysis of the field data is preformed to compare design versus constructed camber. Revised multipliers for design are calculated based on statistical distributions of the field data. Additionally, girders are selected from various bridge

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48

Ward, John Charlton III. "C-Grid as Shear Reinforcement in Concrete Bridge Girders." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/64988.

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Corrosion of reinforcing steel causes shorter life spans in bridges throughout the United States. The use of carbon fiber reinforced polymer (CFRP) materials as the flexural reinforcement in bridge girders has been extensively studied. However, CFRP transverse reinforcement has not been as rigorously investigated, and many studies have focused on CFCC stirrups. The use of C-Grid as an option for transverse reinforcing has not been previously investigated. This thesis concludes that C-Grid is a viable shear design option and presents the initial recommendations for design methods. These me

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49

Al, Rufaydah Abdullah Saeed. "Shear Strength Assessment of Corrosion-Damaged Prestressed Concrete Girders." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/101848.

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Corrosion is a concern in old prestressed concrete bridges, especially bridges built in marine environments. Corrosion induces cracks in the concrete superstructure which accelerates the deterioration rate and can result in a complete loss of the concrete cover and exposure of the reinforcing and prestressing steel. This causes degradation in the load-carrying capacity of the bridge girders. Consequently, decisions need to be made on whether to replace, retrofit, or load post these bridges. Extensive research has focused on the flexural strength of corroded prestressed concrete girders. This r

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50

Reis, André da Silva. "Shear bucling in steel plate girders exposed to fire." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/21924.

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Doutoramento em Engenharia Civil<br>This thesis is a research work aiming the increasing of knowledge of the behaviour of steel plate girders subjected to shear buckling in fire situation. The main objective of this thesis is to overcome the lack of rules for the design of steel structural elements subjected to shear buckling at high temperatures. For this purpose, a numerical model was developed in the finite element software SAFIR to simulate the behaviour of steel plate girders under shear loading at elevated temperatures. These numerical analyses fall into the methodology commonly referr

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