钢筋混凝土框架填充墙计算模型研究综述

RESEARCH REVIEW OF NUMERICAL MODEL FOR INFILLED WALLS IN RC FRAMES

延性破坏是规范推荐理想破坏模式,而震害调查表明,带填充墙的框架结构在地震作用下往往无法实现“强柱弱梁”、“强剪弱弯”的破坏机制。填充墙虽然设计时被视为非结构构件,但其对框架结构抗震性能的影响不容忽视。文中首先对各国规范对填充墙的规定进行总结,并对现有的填充墙框架结构的计算模型及其关键参数的计算方法进行了分析评述,最后分析了现有计算模型的不足之处,并提出了研究方向。

Ductile failure is the ideal failure mode for structures, which is recommended by Chinese codes. However,“strong column-weak beam” and “strong shear-weak flexure” did not be realized in RC frames with infilled walls under strong earthquakes according to earthquake damage investigation. Although infills are considered as non-structural members in design, their influence on seismic performance of frame structures cannot be ignored. Firstly, the considerations for infilled walls in various national codes are summarized in this paper. Secondly, existing calculation models of RC frames with infilled walls and the calculation methods of key parameters are analyzed. Finally, the shortcomings of the existing calculation models are deeply analyzed, and the research directions are proposed.