河南城建学院学报2026，Vol.35Issue(2)：57-63,7.DOI:10.14140/j.cnki.hncjxb.2026.02.008
爆破拆除中框剪结构失稳运动分析
Study on instability motion of frame shear structures in demolition blasting
摘要
Abstract
To address the issues of unclear dynamic mechanical laws and difficulties in ensuring safety and controlling peripheral stability during the blasting demolition of frame-shear wall structures,this study takes the folding blasting demolition project of the Ruzhou Unicom Building as an example and employs numeri-cal simulation to construct a refined mechanical model,systematically analyzing the dynamic responses and failure mechanisms of key components in the frame-shear wall structure.The results show that the numerical simulation results are highly consistent with the actual collapse process in terms of collapse morphology and timing,verifying the reliability of the model and parameters.During the progressive damage process of the structure,the axial force in the columns exhibits a phased redistribution pattern,which intensifies with cu-mulative damage.When the lower cut is formed,the axial force increases sharply to 962 kN,approximately 14.5%higher than the peak value in the upper section.The shear force and bending moment of the columns exhibit significant spatial asymmetry and height gradient effects.The peak bending moment of the lower col-umns is about ten times that of the upper columns,reflecting the uneven vertical force distribution in the structure.The findings provide a reference for numerical simulation modeling,safety assessment and refined design of similar frame-shear wall structures in blasting demolition.关键词
拆除爆破/框剪结构/切口优化/内力分析Key words
demolition blasting/frame-shear wall structure/incision optimization/internal force analysis分类
矿业与冶金引用本文复制引用
贾森春,张培,李昌哲,张心珂,贾海鹏,高帅杰,陈德志,时鲁克..爆破拆除中框剪结构失稳运动分析[J].河南城建学院学报,2026,35(2):57-63,7.基金项目
河南城建学院大学生创新创业训练计划资助项目(202411765033) （202411765033）
