城市建筑2024，Vol.21Issue(11)：176-178,3.DOI:10.19892/j.cnki.csjz.2024.11.38
矩形钢管混凝土短柱的轴心受压性能分析
Analysis on Axial Compression Performance of Rectangular Steel Tube Confined Concrete Short Columns
摘要
Abstract
An in-depth analysis was conducted to evaluate the axial compression performance of rectangular steel tube confined concrete short columns with internal stiffeners by utilizing a non-linear finite element method that considered the interaction between steel and concrete interfaces.The analysis results show that the axial compression failure process of these short columns exhibits significant elastic-plastic characteristics.During failure,the longitudinal stress within the steel tube remains consistently high along the central axis,while the transverse stress only peaks at the corner points of the wall panels.The implementation of internal stiffeners,specifically perforated steel plates affixed to the inner wall of the steel tube,effectively mitigates the buckling deformation of the steel tube's wall panels,and improves the bending form of the steel plate.Moreover,the presence of these perforated steel plate stiffeners contributes significantly to the concrete confinement effect,reinforcing the steel wall panels within the tube.关键词
钢管混凝土/短柱/轴心受压/有限元方法/约束效应Key words
steel tube reinforced concrete/short column/axial compression/finite element method/confinement effect分类
建筑与水利引用本文复制引用
赵呈涛,孙贯拓..矩形钢管混凝土短柱的轴心受压性能分析[J].城市建筑,2024,21(11):176-178,3.基金项目
浙江省自然科学基金项目(LY24E080010) （LY24E080010）
宁波市交通科技项目(202104) （202104）
