Study on earthquake damage levels evaluation method of high-rise hybrid #br#
structure with steel reinforced concrete frame-concrete core wall
Zhang Lingxin1,2 Jiang Bing1,2 Zhu Baijie1,2
1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
2. Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration, Harbin 150080, China
Abstract： Steel reinforced concrete (SRC) frame-concrete core wall is widely used in high-rise building structure because of its better seismic performance and space arrangement. Reasonable evaluation of earthquake damage level plays an important role in seismic disaster prediction and resilience. By summing up and analyzing large quasi-static test results of major components in the structures and referring to Classification of earthquake damage to buildings and special structures(GB/T 24335—2009) and other papers, different damage levels of major components were described. Structural components deformation index limit was calculated which satisfy the limit around 85% in guarantee rate of different damage states. A component deformation index-based damage evaluation method for high-rise hybrid structure was established. The damages for structure under three level earthquakes were evaluated by finite element analysis (FEA).The result shows that the evaluation of structural damage level based on components deformation index agrees with the evaluation results based on the material damage cloud figure produced by FEA. The deformation index limits of each component are reasonable and the proposed method is reliable and effective. The study provides a way for performance evaluation of the high-rise hybrid structures.
