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Title

Seismic evaluation of double-layer space structures (DLSS) using conventional and enhanced pushover analysis methods

Year: 1399
COI: NCCE12_330
Language: EnglishView: 119
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Authors

Mohammad Kheirollahi - PHD candidate of structural engineering, Faculty of civil engineering, Sahand University of Technology, Tabriz, Iran
Karim Abedi - Professor of structural engineering, Faculty of civil engineering, Sahand University of Technology, Tabriz, Iran
MohammadReza Chenaghlou - Professor of structural engineering, Faculty of civil engineering, Sahand University of Technology, Tabriz, Iran

Abstract:

Recent investigations indicate that pushover methods have been widely applied for the seismic evaluation of common structures, whereas a limited number of researches have conducted in the applicability of pushover analyses to double-layer barrel vault roofs with vertical double-layer walls. These structures will be called double-layer space structure (DLSS) throughout this article. The main goal of this study is the accuracy evaluation of pushover analysis in predicting the seismic demands of these structures. For this purpose, first mode pushover analysis, modal pushover analysis (MPA), N2 pushover, extended N2 pushover (EN2), consecutive modal pushover (CMP) procedures have been studied in different models with various rise-to-span ratios of roof and height-to-span ratios of wall. The maximum displacements, drifts, shears of models in different levels of studied models have been calculated and compared with incremental dynamic analysis (IDA) results. It is demonstrated that the extended N2 method is able to effectively predict the seismic demands of structures in comparison with other procedures.

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Paper COI Code

This Paper COI Code is NCCE12_330. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1120617/

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Kheirollahi, Mohammad and Abedi, Karim and Chenaghlou, MohammadReza,1399,Seismic evaluation of double-layer space structures (DLSS) using conventional and enhanced pushover analysis methods,12th National Congress of Civil Engineering,Tabriz,https://civilica.com/doc/1120617

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Type of center: دانشگاه دولتی
Paper count: 3,984
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