同济大学学报（自然科学版）2025，Vol.53Issue(12)：1781-1792,12.DOI:10.11908/j.issn.0253-374x.24238
适用于顶升逆作法的柱‒柱干式连接节点力学性能仿真
Simulation Study of Mechanical Performance of Column-to-Column Dry Connection Joint Applicable to Jacking Reverse Construction
摘要
Abstract
To address the inadequacies in the research of vertical permanent component connection joints,a column-to-column dry connection joint suitable for the jacking reverse construction is proposed.A static load-bearing calculation model for the new joint is developed.A finite element model is established to analyze the effects of parameters such as axial compression ratio,upper-to-lower column height ratio,and bolt arrangement in the joint on its seismic performance.The results indicate that the new joint can reliably connect the upper and lower segments of the column.The specimens exhibit ductile bending failure under a reasonable shear-span ratio.With the axial compression ratio increasing,the ultimate load of the specimen decreases.When the upper-to-lower column height ratio is 1/3,the bearing capacity of the specimens with the new column-to-column connection joint is equivalent to that cast-in-place specimen.Under high axial compression ratios,its displacement ductility is close to that of the cast-in-place specimen,and the energy dissipation capacity is only about 6%lower when the height ratio of the upper-to-lower column height ratio is 1/3.The proposed restoring force model is in good agreement with the simulation results.关键词
干式连接节点/数值模型/抗震性能/恢复力模型Key words
dry connection joint/numerical simulation/seismic performance/restoring force model分类
建筑与水利引用本文复制引用
肖建庄,徐浩林,蓝戊己,袁斌,王璞瑾..适用于顶升逆作法的柱‒柱干式连接节点力学性能仿真[J].同济大学学报（自然科学版）,2025,53(12):1781-1792,12.基金项目
上海市科委科技支撑项目(22DZ1207300) （22DZ1207300）
