地震作用下高强混凝土柱延性计算方法研究  

Study on calculation method for the high-strength concrete column ductility under earthquake

作　　者：刘良林[1,2] 王全凤[2] 应建中[1] 

机构地区：[1]井冈山大学建筑工程学院,江西吉安343009 [2]华侨大学土木工程学院,福建泉州362021

出　　处：《世界地震工程》2016年第1期261-265,共5页World Earthquake Engineering

基　　金：国家自然科学基金资助项目(50578066/E080507)

摘　　要：阐述了延性的定义及其对于结构和构件的重要性与作用,并指出了当前延性计算方法存在的缺陷。收集了国内63个高强混凝土柱的试验数据,逐次分析了轴压比、配箍特征值、纵筋配筋率、保护层厚度、剪跨比与延性指标的关系。研究表明,配箍特征值与延性的关系呈现出线性相关性,并建立了它们之间的关系式。通过10个高强混凝土柱试验数据证明,该表达式计算方便且计算结果比较准确,相对误差在15%之内。This paper expounds the definition of ductility,and latter＇s function and importance to structure and components,points out the shortcoming of existing calculation method for ductility,collects 63 test dada on high-strength concrete column at home,analyzes the relationship of the axial compression ratio,characteristic value of stirrup longitudinal reinforcement ratio,protective layer thickness and shear span ratio with ductility. The results show that the characteristic value of stirrup presents linear correlation with ductility. The relationship between them are established and the test data on 10 high strength concrete column proves that the presented relationship is convenient and accurate in calculation,its relative error is within 15%.

关 键 词：地震作用 高强混凝土柱 延性 

分 类 号：TU378[建筑科学—结构工程]