Analysis of precast segmental box girder bridges

When analyzing prestressed concrete bridges, the self weight, applied loading and prestress have to be combined in the overall structural behavior and the time-dependent effects, such as creep, shrinkage and loss of prestress force should be included. Traditionally these effects are considered separ...

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Main Author:	Elmahadi, Mohamed Abdelfatah
Format:	Thesis
Language:	English
Published:	2008
Subjects:	Bridge Bridge
Online Access:	http://psasir.upm.edu.my/id/eprint/51068/1/FK%202008%20101RR.pdf
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id	my-upm-ir.51068
record_format	uketd_dc
spelling	my-upm-ir.510682017-03-30T08:37:56Z Analysis of precast segmental box girder bridges 2008-05 Elmahadi, Mohamed Abdelfatah When analyzing prestressed concrete bridges, the self weight, applied loading and prestress have to be combined in the overall structural behavior and the time-dependent effects, such as creep, shrinkage and loss of prestress force should be included. Traditionally these effects are considered separately and then combined with to give the overall design requirements although, in recent years, computer software packages have been developed to combine the effects within a single analysis. The project studies the principles behind structural analysis of the precast segmental box girder bridges. Structural manual analysis was performed in this project to explain the behavior of precast segmental box girder bridges under self-weight of segments unit and prestressing load. Moments due to these loads were computed and compared with the allowable moments that computed using the specifications given in the British code. Analysis of construction stages using this method was conducted using LUSAS (FE computer software). The loads that were taken into account are the self-weight of the cantilever during construction, the prestressig loads, the loss of the prestress, creep,shrinkage and relaxation. The stresses in each construction stage are compared with the specifications given in the British code to ensure that they falls well within acceptable limits. Bridge Bridges, Box girder 2008-05 Thesis http://psasir.upm.edu.my/id/eprint/51068/ http://psasir.upm.edu.my/id/eprint/51068/1/FK%202008%20101RR.pdf application/pdf en public masters Universiti Putra Malaysia Bridge Bridges, Box girder
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Bridge Bridge
spellingShingle	Bridge Bridge Elmahadi, Mohamed Abdelfatah Analysis of precast segmental box girder bridges
description	When analyzing prestressed concrete bridges, the self weight, applied loading and prestress have to be combined in the overall structural behavior and the time-dependent effects, such as creep, shrinkage and loss of prestress force should be included. Traditionally these effects are considered separately and then combined with to give the overall design requirements although, in recent years, computer software packages have been developed to combine the effects within a single analysis. The project studies the principles behind structural analysis of the precast segmental box girder bridges. Structural manual analysis was performed in this project to explain the behavior of precast segmental box girder bridges under self-weight of segments unit and prestressing load. Moments due to these loads were computed and compared with the allowable moments that computed using the specifications given in the British code. Analysis of construction stages using this method was conducted using LUSAS (FE computer software). The loads that were taken into account are the self-weight of the cantilever during construction, the prestressig loads, the loss of the prestress, creep,shrinkage and relaxation. The stresses in each construction stage are compared with the specifications given in the British code to ensure that they falls well within acceptable limits.
format	Thesis
qualification_level	Master's degree
author	Elmahadi, Mohamed Abdelfatah
author_facet	Elmahadi, Mohamed Abdelfatah
author_sort	Elmahadi, Mohamed Abdelfatah
title	Analysis of precast segmental box girder bridges
title_short	Analysis of precast segmental box girder bridges
title_full	Analysis of precast segmental box girder bridges
title_fullStr	Analysis of precast segmental box girder bridges
title_full_unstemmed	Analysis of precast segmental box girder bridges
title_sort	analysis of precast segmental box girder bridges
granting_institution	Universiti Putra Malaysia
publishDate	2008
url	http://psasir.upm.edu.my/id/eprint/51068/1/FK%202008%20101RR.pdf
_version_	1747812053523890176

Analysis of precast segmental box girder bridges

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