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http://dx.doi.org/10.5000/EESK.2020.24.2.077

Seismic Performance Evaluation of Unreinforced Masonry Buildings Retrofitted by Strengthening External Walls  

Seol, Yun Jeong (Department of Architectural Design and Engineering, Incheon National University)
Park, Ji-Hun (Division of Architecture and Urban Design, Incheon National University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.24, no.2, 2020 , pp. 77-86 More about this Journal
Abstract
Nonlinear static analysis and preliminary evaluation were performed in this study to evaluate the seismic performance of unreinforced masonry buildings subjected to various soil conditions based on the revised Korean Building Code. Preliminary evaluation scores and nonlinear static analyses indicated that all buildings were susceptible to collapse and did not reach their target performance. Therefore, retrofit of those building models was carried out through a systematic procedure to determine areas to be strengthened. It was possible to make most building models satisfy performance objectives through the reinforcement alone of damaged external shear walls. However, the application of a preliminary evaluation procedure to retrofit design was found to be too conservative because all the retrofitted building models verified with nonlinear static analysis failed to satisfy performance objectives. Therefore, it is possible to economically retrofit unreinforced masonry buildings through the fortification of external walls if a simple evaluation procedure that can efficiently specify vulnerable parts is developed.
Keywords
Seismic performance evaluation; Nonlinear static analysis; Seismic retrofit; Unreinforced masonry buildings;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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