中文摘要：

结构整体超强系数是结构整体抗震性能系数的重要组成部分。针对不同结构高度严格按照现行设计规范设计了6个高烈度区具有代表性的结构模型,并采用OpenSees分析平台建立有限元模型,同时通过与已有试验结果的对比验证了建模方法的客观准确性。基于自适应POA和IDA得到了设计结构模型的整体超强系数及其变化规律,通过对比分析得出：填充墙对RC框架结构的整体超强系数影响显著,但随着结构高度的增加,填充墙对结构超强系数的影响逐渐减弱。按现行规范设计VIII度设防的结构模型中RC框架结构的超强系数最小值为1.2,考虑填充墙作用的RC框架填充墙结构的超强系数最小值为2.1。分析方法的选择对超强系数分析有重要影响,静力分析方法低估了结构的超强系数。

英文摘要：

The structural global overstrength factor is a global seismic performance factor. Six typical RC structures in high intensity regions are designed according to the current Chinese Codes, and finite element models are built based on OpenSees software. The objectivity and accuracy of modeling methods are verified by existing experimental results. The values and rules of overstrength factor are obtained by adaptive pushover analysis （POA） and incremental dynamic analysis （IDA）. The analytical results show that infilled walls have a significant effect on the overstrength factor of RC frames. The effect of infilled wails on overstrength factors decreases gradually with the increase of structural height. The minimum overstrength factor of RC frames designed according to the current Chinese Codes is 1.2 when the seismic precautionary intensity is VIII. But considering the influence of infilled walls, the minimum overstrength factor becomes 2.1. Analysis methods have important effect on the overstrength factor. Comparing with dynamic analysis, static analysis underestimates overstrength factors.