文档介绍：哈尔滨工业大学工学硕士学位论文- I - 摘要填充墙框架结构是应用非常广泛的一种结构形式,具有良好的经济性和适用性。在结构设计和分析中,由于填充墙与框架主体结构间相互作用的复杂性,常常忽略填充墙对结构的影响或仅仅考虑填充墙对结构周期的影响,由框架结构来承担全部的竖向和水平荷载,然而这种简化的处理方式并不总是安全的。此次汶川地震的震害调查表明填充墙框架结构普遍出现了以柱铰破坏为主的失效模式,规范所要求的“强柱弱梁”失效机制未能预期实现,而没有合理考虑填充墙的效应是主要原因之一,因此,本文针对填充墙框架结构未能实现“强柱弱梁”失效机制的破坏现象,对填充墙框架结构进行了抗震性能研究。主要包括以下内容:(1)对填充墙框架结构的的试验和理论分析研究进行总结,分析了填充墙对框架结构工作性能的影响;(2)对填充墙框架结构的各种计算模型进行总结和分析,认为三撑杆简化模型是比较合理的一种模型。对该模型中参数的确定进行了改进,通过与试验结果的对比,表明改进后的三撑杆模型能够很好的模拟填充墙框架结构的工作性能。(3)采用改进的三撑杆简化模型,分别建立了按规范设计的7度和8度设防烈度下底层薄弱钢筋混凝土框架结构模型,采用Pushover分析方法进行了抗震性能分析,并对8度设防烈度下的底层薄弱框架结构模型的Pushover分析结果与动力时程分析结果进行了对比。(4)考察框架结构在罕遇地震下的塑性铰分布,结果表明底层薄弱框架结构未能实现规范要求的“强柱弱梁”失效机制。最后对此提出了改进建议,并通过计算给出了结构第二层与底层的侧移刚度比限值的建议。关键词强柱弱梁;改进的三撑杆模型;底层薄弱;Pushover;刚度比哈尔滨工业大学工学硕士学位论文- II - Abstract The masonry-infilled frame structure, which has good economic and applicability, is a widely used structural form. Because of plexity of frame-infill interaction, the influence of infilled wall on structure is often neglected or just considers its influence on the structural natural vibration period in the structural design and analysis. Hence, all of the vertical and horizontal loads is undertaken by the frame. However this simplified approach is not always conservative. In Wenchuan Earthquake, the major failure mode of the masonry-infilled frame structures is plastic hinge in column which illustrates that the strong column-weak beam mechanism required by the Chinese seismic code fails to realize, and one of the main reasons is not taking into account the effect of infilled walls appropriately. This study deals with the strong column-weak beam mechanism of the masonry-infilled frame structures. The main contents are as follows. (1)According to the experimental and theoretical analysis, the effect of infilled wall on the performance of the frame is analyzed. (2)The various models of masonry-infilled frame structures are summarized and analyzed, and three-strut model is considered as a more rational model. The parameters used in three-strut mode