Evaluation of three-dimensional modal pushover analysis for unsymmetric-plan buildings subjected to two components of ground motion

2011 ◽  
Vol 40 (13) ◽  
pp. 1475-1494 ◽  
Author(s):  
Juan C. Reyes ◽  
Anil K. Chopra
Keyword(s):  
Ground Motion ◽  
Pushover Analysis ◽  
Three Dimensional ◽  
Modal Pushover Analysis ◽  
Modal Pushover

scholarly journals Application of the Incremental Modal Pushover Analysis to Bridges Subjected to Near-Fault Ground Motions

2020 ◽  
Vol 10 (19) ◽  
pp. 6738
Author(s):  
Alessandro Vittorio Bergami ◽  
Gabriele Fiorentino ◽  
Davide Lavorato ◽  
Bruno Briseghella ◽  
Camillo Nuti
Keyword(s):  
Ground Motion ◽  
Pushover Analysis ◽  
Vertical Component ◽  
Structural Response ◽  
Strong Motion ◽  
Seismic Action ◽  
Modal Pushover Analysis ◽  
Near Fault ◽  
Modal Pushover

Near-fault events can cause severe damage to civil structures, including bridges. Many studies have demonstrated that the seismic assessment is not straightforward. Usually, dealing with near-fault ground motion, the structural analysis is performed using Nonlinear Response-History Analysis (NRHA) but in the last years, many authors have tested existing pushover-based procedures originally developed and validated using far-field events. Between those procedures, the Incremental Modal Pushover Analysis (IMPAβ) is a pushover-based procedure specifically developed for bridges that, in this work, was applied to a case study considering near-fault pulse-like ground motion records. The records were analyzed and selected from the European Strong Motion Database. In the paper the results obtained with IMPAβ together with other standard pushover procedures, are compared with NRHA and incremental dynamic analyses; the vertical component of the motion has been also considered. Results obtained with the bridge case study demonstrate that the vertical seismic action has a minor influence on the structural response and that IMPAβ is confirmed as a very effective pushover-based method that can be applied also for near-fault events.

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
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