RC框架结构典型震害及抗震性能研究

摘要

钢筋混凝土框架结构是多高层建筑中广泛使用的一种结构形式,这种结构在地震中的破坏情况十分普遍.本文 根据近些年来国内外的震害调查,通过相关工程震害案例,介绍了结构整体、框架梁柱、楼梯、填充墙等出现的典型震害,分析 了各类震害特征与震害机理.结合国内外理论和试验研究成果,总结了钢筋混凝土框架结构在整体抗倒塌能力、"强柱弱梁" 以及其它方面抗震性能的研究进展.最后针对钢筋混凝土框架结构在抗震概念设计、结构抗震设计、构件抗震设计等方面存 在的问题,给出了一些建议.%RC frame structure is a widely used structure type in high-rise buildings, and the damage of this structure is very universal in earthquakes. Based on the investigations of RC frame structure in the earthquake area, the typical damage characteristics and mechanism of the whole structure, bearing frame, stairs and infill walls are analyzed. Recent progress of seismic behavior of RC structures are summarized, including: collapse resistance of the whole structure, strong column and weak beam, infill walls and other aspects. Some suggestions are provided to improve the seismic design.