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ISSN : 1026-3098
e-ISSN : 2345-3605
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Publication Information : Volume 22 - Number 3 - Successive Number 3
Type : Article
Topics of Paper : Transaction on Civil Engineering
English Title : Nonlinear Behavior of Concrete End Diaphragms in Straight Slab-Girder Bridges
English Abstract : The seismic behavior of concrete end diaphragms of bridges has not been studied before and there are no significant design provisions available. According to the American Association of State Highway and Transportation Officials (AASHTO), the end diaphragms being part of the seismic load path have to remain elastic under the prescribed seismic design forces, regardless of the type of bearings used. In this paper, using a three-dimensional finite element model and nonlinear time history analyses the behavior of reinforced concrete end diaphragms in straight single-span slab-girder bridges has been investigated. The results are compared to AASHTO’s design provisions. It is concluded that for slab-girder concrete bridges the concrete diaphragms remain elastic under design earthquake loading. It is also concluded that AASHTO’s recommended seismic design force for end diaphragms could be unsafe in most cases.
English Keywords : Bridge, seismic analysis, reinforced concrete, diaphragms, elastomeric bearing.
Refrences :
Number Of Pages :
From 604 to 614


Authors :
The AuthorAuthor SequenceOrganizationOrganization ( english )AffiliationEmailEducation
Himan Hojat Jalali
(Author)
1Department of Civil Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-9313, Iran    
Prof. Shervin Maleki 2Department of Civil Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-9313, Iran Professorsmaleki@sharif.edu 
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Transactions on Civil Engineering
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2014
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Transactions on Civil Engineering
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