12th National Conference on Earthquake Engineering(12NCEE)
巻, 号, ページ
出版年月
2022年6月27日
出版者
和文:
英文:
Earthquake Engineering Research Institute
会議名称
和文:
英文:
12th National Conference on Earthquake Engineering(12NCEE)
開催地
和文:
英文:
Salt Lake City
アブストラクト
In the 2011 Tohoku earthquake and 2016 Kumamoto earthquake in Japan, it was difficult for some reinforced concrete buildings to maintain their functionality after earthquakes due to damage to non-structural reinforced concrete walls even though they did not collapse. Presently, the current requirements of buildings are not only to secure human lives but also to maintain the continuous functionality of buildings during and after hazards. One resilient structural system may be an unbonded post-tensioned precast concrete structural system. In this study, the hysteresis loops of load-drift relation of tested unbonded post-tensioned precast concrete wall with energy dissipators (the hybrid wall) were numerically simulated with an inelastic multi-spring model by using a spring element length of lp equal to 0.5 times wall length. Numerical analysis was also conducted to quantify the damage level and four limit states (Serviceability limit state, Reparability limit state I, Reparability limit state II and Safety limit state) of the tested hybrid wall. The numerical model was able to evaluate the timing and determining factors of each limit state. As a result, the detailed damage levels of analyzed walls were successfully classified to have a good agreement with the experimental results.
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