钢筋高强混凝土框架柱轴压比限值的确定方法
Determination of limit value of axial compression ratio of reinforced high-strength concrete columns
柯晓军 1苏益声 1陈宗平 1薛建阳2
作者信息
- 1. 广西大学 土木建筑工程学院，广西 南宁 530004
- 2. 西安建筑科技大学 土木工程学院，陕西 西安 710055
- 折叠
摘要
为保证钢筋高强混凝土框架柱满足延性需求，采用偏心受压构件界限破坏理论，根据截面力的平衡和变形协调关系，推导出普通配筋截面柱的轴压比限值计算公式。在此基础上，分析混凝土强度、钢筋强度、配箍率、配筋率、密集纵筋芯柱等因素对轴压比限值的影响，提出能反映上述变化参数作用时的钢筋高强混凝土柱轴压比限值计算方法。研究成果为钢筋高强混凝土柱设计提供了理论依据。
Abstract
To ensure that reinforced high-strength concrete frame columns meet ductility require-ment, a system study is necessary to be carried out on the limit value of axial compression ratio of reinforced high-strength concrete frame columns. Based on the limit failure theory for eccentric com-pression, calculation formula for the limit value of axial compression ratio was derived by using force equilibrium and deformation coordination. On this basis, the influence of concrete strength, rein-forcement strength, stirrup ratio, reinforcement ratio and core column with dense longitudinal rein-forcement on the limit value of axial compression ratio was analyzed, and the calculation methods for the limit value of axial compression ratio of reinforced high-strength concrete columns were pro-posed . Research results can provide a theoretical basis for the design of reinforced high-strength con-crete columns.
关键词
高强混凝土/框架柱/轴压比限值/界限破坏理论Key words
high-strength concrete/frame column/limit value of axial compression ratio/limit damage theory引用本文复制引用
基金项目
国家自然科学基金资助项目(51468003)
国家自然科学基金资助项目(51508112)
高等学校博士学科点专项科研基金联合资助项目(20134501110001)
广西科学研究与技术开发计划项目(桂科转14124005-1-2)
广西自然科学基金资助项目(2015GXNSFBA139210)
出版年
2016
NETL
NSTL
维普
万方数据