高轴压比扁柱的抗震性能试验研究

英文篇名：Experimental Study on Seismic Behavior of Flat Columns with High Axial Compression Ratio
中文刊名：建筑结构
英文刊名：Building Structure
作者：张国军 ; 吕西林
英文作者：Zhang Guojun ; Lü Xilin(State Key Laboratory for Disaster Reduction in Civil Engineering ; Tongji University ; Shanghai 200092 ; China)
中文关键词：扁柱 ; 滞回特性 ; 延性 ; 抗震性能
英文关键词：flat column ; hysteretic characteristic ; ductility ; seismic behavior ; compression ratio
出版日期：2005-03-25
机构：同济大学土木工程防灾国家重点实验室,同济大学土木工程防灾国家重点实验室上海200092 ,上海200092
年：2005
期：03
出版单位：建筑结构

摘要

完成了3个高轴压比下扁柱试件在反复荷载作用下的试验。讨论了其破坏形态及滞回特性,并分析了轴压比、箍筋形式及配箍率等因素对试件延性的影响。结果表明采用普通矩形箍筋柱的延性较差,采用带十字拉筋的矩形箍筋柱的延性稍好,采用井字箍筋柱的延性较好。研究结果可为进一步了解框架扁柱的抗震性能提供依据。
Three specimens of flat columns with high axial compressive ratio under frequency cyclic loading were tested,the failure process was observed and the failure mechanism of the specimens were studied.The results show that the ductility of flat column with rectangular stirrup is poor, and the ductility increases with the enhancing of the stirrup ratio.The experiments provide basic informations for detecting the seismic behavior of flat columns in frames.

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