Instrumentation and Load Rating of Steel Curved Girder Bridges

Instrumentation and Load Rating of Steel Curved Girder Bridges

Bibliographic Details
Main Author: Sengupta, Abir K.
Language:English
Published: University of Cincinnati / OhioLINK 2011
Subjects:
Civil Engineering
Curved
Steel
Girders
Instrumentation
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ucin1298323050
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ucin12983230502021-08-03T06:14:34Z Instrumentation and Load Rating of Steel Curved Girder Bridges Sengupta, Abir K. Civil Engineering Curved Steel Girders Instrumentation Curved girder bridges are frequently used by state departments of transportation because they add significant flexibility in the determination of highway alignments, especially at congested interchanges. Much of the seminal research into the behavior of curved girder bridges was conducted in the late 1960s. The development of computer programs for the analysis and design of curved-girder bridges quickly followed and they have become more advanced over time. While the load path for a straight girder bridge is such that the girders are subjected primarily to shear forces and strong-axis bending moments, the load path in curved girders bridges inherently includes eccentric loads that result not only in strong axis shear forces and bending moments but also torsional moments, warping, and the resulting shear. As a result, the level of complexity in modeling a curved bridge is increased exponentially when compared to a straight bridge. A secondary consideration is the selection of girder configurations for curved-girder bridges. While I-shaped girders are often selected as the de facto section of choice for straight bridges, box girders offer significant advantages over I-shaped girders in curved bridges because of the relatively high torsional rigidity that they offer.This article addresses the most significant issues involved with the analysis and design of curved girder bridges starting with a review of the mechanics associated with torsion, which acts on the members, moving into a review of research conducted to date, which is then followed by a summary of design provisions. Next, the topic of finite element modeling of curved girder bridges in 2D and 3D will be addressed. Finally, a discussion of evaluation and load rating of curved bridges will be presented. As a final consideration, a study comparing the behavior of tangent bridges (bridges made up of straight girders supporting a horizontally curved roadway) with the behavior of curved bridges will be conducted and included in the thesis. 2011-04-20 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1298323050 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1298323050 unrestricted This thesis or dissertation is protected by copyright: some rights reserved. It is licensed for use under a Creative Commons license. Specific terms and permissions are available from this document's record in the OhioLINK ETD Center.
collection NDLTD
language English
sources NDLTD
topic Civil Engineering
Curved
Steel
Girders
Instrumentation
spellingShingle Civil Engineering
Curved
Steel
Girders
Instrumentation
Sengupta, Abir K.
Instrumentation and Load Rating of Steel Curved Girder Bridges
author Sengupta, Abir K.
author_facet Sengupta, Abir K.
author_sort Sengupta, Abir K.
title Instrumentation and Load Rating of Steel Curved Girder Bridges
title_short Instrumentation and Load Rating of Steel Curved Girder Bridges
title_full Instrumentation and Load Rating of Steel Curved Girder Bridges
title_fullStr Instrumentation and Load Rating of Steel Curved Girder Bridges
title_full_unstemmed Instrumentation and Load Rating of Steel Curved Girder Bridges
title_sort instrumentation and load rating of steel curved girder bridges
publisher University of Cincinnati / OhioLINK
publishDate 2011
url http://rave.ohiolink.edu/etdc/view?acc_num=ucin1298323050
work_keys_str_mv AT senguptaabirk instrumentationandloadratingofsteelcurvedgirderbridges
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