摘   要：以一栋四层钢筋混凝土框架结构作为实例，探究了楼板开洞率以及同一结构平面内不同开洞位置对于整体结构抗震性能的影响。采用SAP2000软件建立8个与该工程实例等效的有限元模型并对其进行模态分析、反应谱分析、Pushover分析和非线性时程分析。分析结果表明，当开洞率大于该层楼面面积的20%且开洞位置偏离结构平面中部时，楼板开洞对于结构整体抗侧刚度有较大削弱，同时加大了结构的扭转效应，在罕遇地震作用下使得结构的屈服机制偏向于“强梁弱柱”。

Abstract: The opening of the floor has an unneglecting influence on the seismic performance of the frame structure. A four-story RC concrete frame structure is taken as an example. In order to study the impact of floor opening rate and the same plane structure in different position of opening the seismic performance of the whole structure, the SAP2000 software is used to establish 8 equivalent models to make modal analysis, response spectrum analysis, Pushover analysis and nonlinear time history analysis. The results show that when the opening rate is greater than 20% and the location of the opening deviates from the middle part of the structure, the opening of the floor has a great influence on the overall seismic performance of the frame structure.