Abstract:Ground fissure is a serious threat to structures.In order to analyze the seismic responses of frame structures across ground fissure with different settlements between hanging wall and foot wall under earthquake, taking a RC frame near the ground fissure f4 as a research object, a calculation model for the structure and ground fissure with and without different settlements was established by ANSYS/LS-DYNA.The calculation results present the same tendency with the results of shaking table tests.After applying different settlements to this model, the accelerations, displacements and displacement angles of the frame were quantitatively analysed.The results show that the accelerations and displacements of the frame across ground fissure are bigger than those of the frame on original ground.Different settlements increase the accelerations and displacements of the structure and make structure destroy more easily.The results provide a powerful basis to the further study on the failure mechanism of structures across ground fissures.
熊仲明1,王永玮1,陈轩1,熊威扬2. 在上下盘差异沉降作用下跨越地裂缝框架结构地震响应研究[J]. 振动与冲击, 2019, 38(10): 112-118.
XIONG Zhongming1,WANG Yongwei1,CHEN Xuan1,XIONG Weiyang2. Seismic responses of structures across ground fissure with different settlements between hanging wall and foot wall. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(10): 112-118.
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