【摘要】 根据楼梯的破坏机理及破坏形态,提出了震损楼梯间的几种加固方法,对已破坏的RC框架楼梯模型进行加固。通过低周反复荷载试验及有限元分析研究了加固模型的抗震性能,试验研究及有限元分析结果验证了加固方法的有效性,加固方法同样适用于既有建筑楼梯。更多还原

【Abstract】 Several strengthening methods were proposed to strengthen a seismic damaged staircase model of RC frame structure based on the failure mechanism and failure mode of staircases. The seismic behavior of the strengthened model was studied by the low-cyclic reversed loading test and finite element analysis. Results indicate that the method is valid and can be applied in the seismic reinforcement of existing staircases of RC frame structure.更多还原