Modal Pushover Analysis Method in Transverse Direction of Multi span Continuous Bridges

doi:10.3969/j.issn.0253-374x.2014.09.001

Home > Archive>Volume 42, Issue 9, 2014 >1305-1312. DOI:10.3969/j.issn.0253-374x.2014.09.001

Modal Pushover Analysis Method in Transverse Direction of Multi span Continuous Bridges
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                        10.3969/j.issn.0253-374x.2014.09.001
                    
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                        CAO SasaCAO Sasa
State Key Laboratory for Disaster Reduction in Civil Engineering， Tongji University， Shanghai 201804，China
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YUAN WanchengYUAN Wancheng
State Key Laboratory for Disaster Reduction in Civil Engineering， Tongji University， Shanghai 201804，China
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Affiliation:State Key Laboratory for Disaster Reduction in Civil Engineering,State Key Laboratory for Disaster Reduction in Civil Engineering
Clc Number:U442.5+5
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Abstract:

Modal pushover analysis method in transverse direction of multi span continuous bridges is studied for seismic performance evaluation of bridges in preliminary design stage. Moreover, effects of near optimal piecewise linear fits and FEMA356 fits in modal pushover analyses are compared. Modal pushover analyses with the two fits and nonlinear time history analysis of 3 continuous units of a constructing bridge are conducted. The conclusions are drawn that the modal pushover analysis method reasonably predicts the seismic performance of multi span continuous bridges; no obvious advantages of near optimal piecewise linear fits are shown in comparison with FEMA356 fits.

Key words:multi span continuous bridge; modal pushover analysis(MPA); ductility; Luca fits

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CAO Sasa, YUAN Wancheng. Modal Pushover Analysis Method in Transverse Direction of Multi span Continuous Bridges[J].同济大学学报(自然科学版),2014,42(9):1305~1312

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Received:November 09,2013
Revised:May 07,2014
Adopted:February 24,2014
Online: August 20,2014
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