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Title |
A Study on Seismic Performance of External Reinforcement for Unreinforced Masonry Buildings
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Authors |
김종연(Jong-Yeon Kim) ; 강종(Jong Kang) |
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DOI |
https://doi.org/10.11112/jksmi.2024.28.2.43 |
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Keywords |
비선형 정적해석; 푸쉬오버; 내진성능; 내진보강 공법; 비보강 조적조 건축물 Nonlinear static analysis; Pushover; Seismic performance; Seismic retrofitting method; Unreinforced masonry buildings |
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Abstract |
In this study, we evaluated the seismic performance of a masonry building that was not designed to be earthquake-resistant and attempted to improve the seismic performance by adopting a seismic reinforcement method on the exterior of the building. In addition, the building seismic design standards and commentary(KDS 41 17 00:2019) and existing facility(building) seismic performance evaluation methods were applied to evaluate seismic performance, and a pushover analysis was performed using non-linear static analysis. As the result of this study, it was determined that seismic reinforcement was urgent because the distribution rate of earthquake-resistant design of houses in Korea was low and masonry structures accounted for a large proportion of houses. When reinforcing the steel beam-column+brace frame in a masonry building, the story drift angle was 0.043% in the X direction and 0.047% in the Y direction, indicating that it satisfied the regulations. The gravity load resistance capacity by performance level was judged to be a safe building because it was habitable in both X and Y directions. In conclusion, it is believed that the livability and convenience of the house can be secured by reinforcing the exterior of the building and the seismic performance and behavior of the structure can be clearly predicted.
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