普通钢板墙柱型剪切耗能装置抗震性能研究

发布时间：2019-05-29 13:13

【摘要】：提出了一种上、下由普通钢板焊接的刚度较大的约束板、中部核心耗能区段由退火热处理后的普通钢板制作的墙柱型剪切耗能装置。完成了不同加劲肋方式的8个足尺试件的拟静力试验,并从滞回曲线、承载力、延性等方面分析耗能装置的抗震性能。研究表明:该装置具有初始刚度大、承载力高和耗能性能优良等特点;改变中间耗能区段上的加劲肋方式和尺寸,有助于改善钢板剪力墙的承载力和刚度,延缓并减轻滞回曲线中的"捏缩效应";当耗能装置丧失承载力,大多会出现中部耗能区段的局部小区格内钢板疲劳开裂、中部耗能板整体出现面外屈曲失稳、板角焊缝被撕裂等现象。
[Abstract]:A wall column shear energy dissipation device is proposed, which is welded by ordinary steel plate at the top and bottom, and the central core energy consumption section is made of ordinary steel plate after annealed heat treatment. The quasi-static tests of eight full-scale specimens with different stiffening ribs are completed, and the seismic performance of energy dissipation devices is analyzed from the aspects of hysteretic curve, bearing capacity, plasticity and so on. The results show that the device has the characteristics of high initial stiffness, high bearing capacity and excellent energy consumption performance. Changing the mode and size of stiffeners in the middle energy dissipation section is helpful to improve the bearing capacity and stiffness of steel plate shear walls and delay and reduce the "kneading effect" in the hysteretic curve. When the energy dissipation device loses its bearing capacity, the fatigue cracking of the steel plate in the local area of the middle energy dissipation section will occur, and the out-of-plane buckling instability and tear of the fillet weld will occur in the middle energy consumption plate as a whole.
【作者单位】：华侨大学土木工程学院;西南电力设计院有限公司;
【基金】：华侨大学科技创新团队和领军人才支持计划项目(2014KJTD05);华侨大学中青年教师科技提升计划项目(ZQN-PY314);华侨大学引进人才项目(13BS302) 福建省自然科学基金项目(2015J01638) 浙江省教育厅资助课题项目(Y201225574)
【分类号】：TU352.11;TU392.4

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