Enhancing seismic performance of steel buildings having semi-rigid connection with infill masonry walls considering soil type effects

Farzin Kazemi; Neda Asgarkhani; Robert Jankowski

doi:10.1016/j.soildyn.2023.108396

Enhancing seismic performance of steel buildings having semi-rigid connection with infill masonry walls considering soil type effects

Abstract

Unpreventable constructional defects are the main issues in the case of steel Moment-Resisting Frames (MRFs) that mostly occur in the rigidities of beam-to-column connections. The present article aims to investigate the effects of different rigidities of structures and to propose Infill Masonry Walls (IMWs) as retrofitting strategy for the steel damaged buildings. A fault or failure to meet a certain consideration of the soil type beneath the building and the current rigidity of connections can cause mistake in determining the performance of building. Therefore, this study comprehensively explores different conditions of soil types, connection rigidities, and implementing IMWs on the 3-, 5-, 7-, and 9-story MRFs. Two nonlinear analyses, namely Nonlinear Dynamic Analysis (NDA) and Incremental Dynamic Analysis (IDA) were performed on 384 steel MRFs having different conditions of defects and the results of the analysis include 3456 performance curves assuming three ground motion subsets recommended by FEMA P695. The results confirm that the proposed retrofitting procedure can effectively improve the performance levels of MRFs, which the connections rigidity of 90 %, 80 %, 70 %, 60 %, and 50 % can reduce the collapse performance level by 2.86 %, 5.35 %, 9.31 %, 16.56 %, and 34.65 %, respectively.

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Keywords

STEEL DAMAGED BUILDING INFILL MASONRY WALL RIGIDITY OF CONNECTION SOIL TYPE EFFECTS SEISMIC PERFORMANCE ASSESSMENT SEISMIC RETROFIT.

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING no. 177,
ISSN: 0267-7261

Language:

English

Publication year:

2024

Bibliographic description:

Kazemi F., Asgarkhani N., Jankowski R.: Enhancing seismic performance of steel buildings having semi-rigid connection with infill masonry walls considering soil type effects// SOIL DYNAMICS AND EARTHQUAKE ENGINEERING -Vol. 177, (2024), s.108396-

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