河南城建学院学报2026，Vol.35Issue(3)：35-41,7.DOI:10.14140/j.cnki.hncjxb.2026.03.005
侧向冲击作用下CFST梁柱子结构抗冲击性能研究
Research on impact resistance of CFST beam-column substructure under lateral impact
摘要
Abstract
Concrete-Filled Steel Tubular(CFST)beam-column structures are often subjected to the coupling action of axial compression and lateral impact during their service life.To reveal the impact resistance of the structure under this working condition,this study established a numerical model of the CFST beam-column substructure based on the ABAQUS finite element analysis software.The modeling method was validated against existing axial compression-lateral impact coupling tests,and the effects of axial compression ratio,impact mass,and impact positionon the structural impact resistance were systematically investigated.The results show that when the axial compression ratio increases from 0.5 to 0.7,the peak lateral deformation of the column increases by 267.35 mm and the dynamic response time of the structure is prolonged,with no significant effect on the peak impact force.When the impact mass rises from 1.9 t to 4.5 t,the increase in impact kinetic energy leads to a 1.77-fold rise in the peak lateral deformation of the column and an expansion of the structural stress distribution range.When the impact position increases from 0.84 m to 1.39 m,the lateral displacement of the column increases by 15%,and it decreases slightly with a further rise to 1.69 m.The closer the impact point is to the mid-column,the longer the dynamic response time of the structure becomes.The results can provide a theoretical reference for the impact resistance design of CFST beam-column substructures.关键词
钢管混凝土/梁柱子结构/侧向冲击/动力响应/有限元分析Key words
concrete-filled steel tube/beam-column substructure/lateral impact/dynamic response/finite element analysis分类
建筑与水利引用本文复制引用
郝仙娟,曹海洋..侧向冲击作用下CFST梁柱子结构抗冲击性能研究[J].河南城建学院学报,2026,35(3):35-41,7.基金项目
郑州商学院校级科研项目(2025-XJYB-183) （2025-XJYB-183）
