Research and application of evaluation methods for earthquake resilience of individual building structure
Kang Xiandong1 Fu Haoran2 Zhao Guang1 Wang Fei1
1. Beijing Earthquake Administration, Beijing 100080, China;
2. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
Abstract：A teaching building instrumented with an observation array is selected for structural earthquake resilience evaluation, and the finite element model is built by using the Opensees software and calibrated with the natural characteristics identified from the ambient test. Until the simulated periods are consistent with the benchmark values, the model can’t be used for the resilience analysis. Furthermore, 10 earthquake data of ground motions are input for elastoplastic analysis. The results indicate that the inter-story drift ratios are lower than the specified limits, the earthquake resistant performance of the building structure is good, and the building resilience can be evaluated by only considering the loss of function. Based on loss ratio and occurrence probability of two damage states in the fragility curves for the suspended ceiling and infill wall, the loss of function and the building resilience are calculated. The earthquake resilience analysis of the teaching building suggests that in rare earthquakes the loss of function exceeds 2/3 and the remaining resilience is only 1/3. According to the REDi method used for evaluating the functional recovery time of suspended ceiling and infill wall, the building resilience curves can be attained by referring to the relationship between building function (resilience) and recovery time.
康现栋 付皓然 赵光 王飞. 单体建筑抗震韧性评估方法研究与应用[J]. 土木工程学报, 2021, 54(8): 37-42.
Kang Xiandong Fu Haoran Zhao Guang Wang Fei. Research and application of evaluation methods for earthquake resilience of individual building structure. 土木工程学报, 2021, 54(8): 37-42.
