An Engineering Comment for Simply Accelerating Seismic Response History Analysis of Mid-Rise Steel-Structure Buildings

Aram Soroushian; Abdolreza  S. Moghadam; Ahmad Sabzei; Saeed Amiri; Aram Saaed; Ali Yahyapour

doi:10.54338/27382656-2023.4-001

Authors

Aram Soroushian International Institute of Earthquake Engineering and Seismilogy https://orcid.org/0000-0001-5047-5969
Abdolreza S. Moghadam International Institute of Earthquake Engineering and Seismology https://orcid.org/0000-0002-3831-8757
Ahmad Sabzei International Institute of Earthquake Engineering and Seismology https://orcid.org/0009-0002-9470-6161
Saeed Amiri Polytechnique Montreal https://orcid.org/0000-0002-0077-4298
Aram Saaed International Institute of Earthquake Engineering and Seismology https://orcid.org/0000-0002-5106-8916
Ali Yahyapour International Institute of Earthquake Engineering and Seismology https://orcid.org/0009-0003-3571-3449

DOI:

https://doi.org/10.54338/27382656-2023.4-001

Keywords:

response history analysis, ground motion, mid-rise steel-structure buildings, the SEB THAAT, integration step, excitation step, run-time, accuracy

Abstract

Response history analysis using a time integration method is a powerful versatile tool in accessing structures seismic behaviours. To reduce the analysis run-time, a technique was proposed in 2008 for time integration with steps larger than the steps of ground motions. The technique has been implemented in seismic assessment of frames, buildings, bridges, silos, etc., leading to considerable reductions in the analysis run-time, without notable effect on the response accuracy. The technique has recently been named as the SEB THAAT (Step- Enlargement-Based Time-History-Analysis-Acceleration-Technique). To use the SEB THAAT, the smallest dominant period of the response needs to be available prior to the analysis. In this paper, concentrating on 5-20-floor steel-structure buildings, a simple engineering comment is proposed that eliminates this need. As a result, in response history analysis of mid-rise steel-structure buildings subjected to ground motion, by using the proposed comment, we may reduce the analysis run-time, significantly, without any initial information about the response. The reduction is 50% for the linear analyses.

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Author Biographies

Aram Soroushian, International Institute of Earthquake Engineering and Seismilogy

Doctor of Philosophy (PhD) in Civil Engineering, Assistant Professor (Iran, Tehran) - International Institute of Earthquake Engineering and Seismology (IIEES), Faculty member of Structural Engineering Research Centre

Abdolreza S. Moghadam, International Institute of Earthquake Engineering and Seismology

Doctor of Philosophy (PhD) in Earthquake Engineering, Associate Professor (Iran, Tehran) - International Institute of Earthquake Engineering and Seismology (IIEES), Faculty member of Structural Engineering Research Centre

Ahmad Sabzei, International Institute of Earthquake Engineering and Seismology

Doctor of Philosophy (PhD) in Earthquake Engineering (Iran, Tehran) - International Institute of Earthquake Engineering and Seismology (IIEES), Research Assistant of Structural Engineering Research Centre

Saeed Amiri, Polytechnique Montreal

Master of Science (MS) in Civil Engineering, PhD Candidate (Canada, QC, Montreal) - Department of Civil, Geological and Mining Engineering, Polytechnique Montreal

Aram Saaed, International Institute of Earthquake Engineering and Seismology

Master of Science (MS) in Civil Engineering, PhD Candidate (Iran, Tehran) - Structural Engineering Research Centre, International Institute of Earthquake Engineering and Seismology (IIEES)

Ali Yahyapour, International Institute of Earthquake Engineering and Seismology

Master of Science (MS) in Civil Engineering (Iran, Tehran) - Structural Engineering Research Centre, International Institute of Earthquake Engineering and Seismology (IIEES), Research Assistant of Structural Engineering Research Centre

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