Simplified Modal Pushover Analysis to Estimate First- and Higher-Mode Force Demands for Design of Strongback-Braced Frames

2021 ◽  
Vol 147 (12) ◽  
pp. 04021196
Author(s):  
Barbara G. Simpson ◽  
David Rivera Torres
Keyword(s):  
Pushover Analysis ◽  
Braced Frames ◽  
Modal Pushover Analysis ◽  
Modal Pushover

Applicability of Modal Pushover Analysis on Bridges

2011 ◽  
Vol 255-260 ◽  
pp. 806-810
Author(s):  
Biao Wei ◽  
Qing Yuan Zeng ◽  
Wei An Liu
Keyword(s):  
Seismic Analysis ◽  
Pushover Analysis ◽  
Time History ◽  
Seismic Demand ◽  
Seismic Demands ◽  
Modal Pushover Analysis ◽  
History Analysis ◽  
Bridge Structures ◽  
Scope Of Application ◽  
Modal Pushover

Taking one irregular continuous bridge as an example, modal pushover analysis (MPA) has been conducted to judge whether it would be applicable for seismic analysis of irregular bridge structures. The bridge’s seismic demand in the transverse direction has been determined through two different methods, inelastic time history analysis (ITHA) and MPA respectively. The comparison between those two results indicates that MPA would be suitable only for bridges under elastic or slightly damaged state. Finally, some modifications are used to improve the MPA’s scope of application, and the results illustrate that the adapted MPA will be able to estimate bridges’ seismic demands to some extent.

Extension of the Modal Pushover Analysis to Assess Structures Exposed to Blast Load

2018 ◽  
Vol 144 (3) ◽  
pp. 04018006
Author(s):  
Amir Saedi-Daryan ◽  
Sahman Soleimani ◽  
Masoud Hasanzadeh
Keyword(s):  
Pushover Analysis ◽  
Blast Load ◽  
Modal Pushover Analysis ◽  
Modal Pushover

Evaluation of modal pushover analysis using generic frames

2003 ◽  
Vol 32 (3) ◽  
pp. 417-442 ◽  
Author(s):  
Chatpan Chintanapakdee ◽  
Anil K. Chopra
Keyword(s):  
Pushover Analysis ◽  
Modal Pushover Analysis ◽  
Modal Pushover

Studies and Improvements on Modal Pushover Analysis and Application on Bridge

2010 ◽  
Vol 163-167 ◽  
pp. 4076-4082
Author(s):  
Ying Na Mu ◽  
Lei Shi ◽  
Zhe Zhang
Keyword(s):  
Seismic Response ◽  
Pushover Analysis ◽  
High Accuracy ◽  
Analysis Procedure ◽  
Bridge Structure ◽  
Higher Modes ◽  
Modal Pushover Analysis ◽  
Multi Mode ◽  
Inertia Forces ◽  
Modal Pushover

Because the traditional pushover analysis can not take the contributions of higher modes into account, To overcome this limitation, a modal pushover analysis procedure (MPA) is proposed by some researchers, which can involve the combination of multi-mode contributions to response. In this paper, much improvement on MPA procedure is made with consideration of the changes of seismic response after structural yielding and anew distribution of inertia forces. The method is verified by one example of bridge structure. It is concluded that the improvement part-sectionalized MPA presented in this paper has high accuracy.

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