中国标准化Issue(12)：183-188,6.DOI:10.3969/j.issn.1002-5944.2024.12.032
钢管混凝土短柱轴压承载力试验与规范计算方法对比研究
Comparative Study of Axial Compression Bearing Capacity Test and Normative Calculation Method for Concrete-filled Steel Tubular Short Columns
摘要
Abstract
Based on axial compression experiments of three kinds of concrete-filled steel tubular short columns with the same steel ratio and confining coefficient but different cross sections,in order to study the size effect of concrete-filled steel tubular components on its bearing capacity and normative calculation method.The load-strain relationship curves and the load-axial displacement curves of the components under the axial compression are obtained by experiments.The superposition principle is used to analyze the effect of different specifications on the mechanical properties and ultimate bearing capacity of concrete-filled steel tubular component with equal confining coefficient.The results show that the bearing capacity of concrete-filled steel tubular short column is close to the experimental value of the existing standards including CECS 28:2012 and DBJ 13-51-2010.When the confining coefficient is equal,the concrete-filled steel tubular short columns with the same material properties and similar geometric components have a certain size effect.关键词
钢管混凝土短柱/承载力/尺寸效应/本构关系/套箍系数Key words
sconcrete-filled steel tubular short column/bearing capacity/size effect/constitutive relation/confining coefficient引用本文复制引用
孙明贺..钢管混凝土短柱轴压承载力试验与规范计算方法对比研究[J].中国标准化,2024,(12):183-188,6.
