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Envelope-based pushover analysis procedure for the approximate seismic response analysis of buildingsBrozovič, Marko ; Dolšek, MatjažAn envelope-based pushover analysis procedure is presented that assumes that the seismic demand for each response parameter is controlled by a predominant system failure mode that may vary according ... to the ground motion. To be able to simulate the most important system failure modes, several pushover analysesneed to be performed, as in a modal pushover analysis procedure, whereas the total seismic demand is determined by enveloping the results associated with each pushover analysis. The demand for the most common system failure mode resulting from the "first-mode" pushover analysis is obtained by response history analysis for the equivalent "modal-based" SDOF model, whereasdemand for other failure modes is based on the "failure-based" SDOF models. This makes the envelope-based pushover analysis procedure equivalent to the N2 method provided that it involves only "first-mode" pushover analysisand response history analysis of the corresponding "modal-based" SDOF model. It is shown that the accuracy of the approximate 16th, 50th and 84th percentile response expressed in terms of IDA curves does not decrease with the height of the building or with the intensity of ground motion. This is because the estimates of the roof displacement and the maximum storey drift due to individual ground motions were predicted with a sufficient degree of accuracy for almost all the ground motions from the analysed sets.Source: Earthquake engineering & structural dynamics. - ISSN 0098-8847 (Letn. 43, št. 1, 2014, str. 77-96)Type of material - article, component part ; adult, seriousPublish date - 2014Language - englishCOBISS.SI-ID - 6305121
Author
Brozovič, Marko |
Dolšek, Matjaž
Topics
potresno inŽenirstvo |
postopek potisne analize na osnovi ovojnice |
modelna potisna analiza |
N2 metoda |
približna inkrementna dinamična analiza |
SDOF model na osnovi mejnega stanja |
earthquake engineering |
envelope-based pushover analysis procedure |
modal pushover analysis procedure |
N2 method |
approximate incremental dynamic analysis |
failure-based SDOF model
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Database name | Field | Year |
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Brozovič, Marko | 31961 |
Dolšek, Matjaž | 18793 |
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