超高层建筑钢结构自锁式受力柱的承载性能研究  

Research on bearing capacity of self-locking columns of steel structures in supertall buildings

作　　者：郭佳 孙佳秋 GUO Jia;SUN Jiaqiu(School of Urban Construction,Tianjin College,University of Science and Technology Beijing,Tianjin 301800,China)

机构地区：[1]北京科技大学天津学院城市建设学院,天津301800

出　　处：《兵器材料科学与工程》2025年第2期115-120,共6页Ordnance Material Science and Engineering

基　　金：北京科技大学天津学院院长基金(2024YZJJ-KJ01);天津市教委科研计划项目(2023ZD053)。

摘　　要：为研究超高层建筑钢结构自锁式受力柱承载性能,用Q345B钢为主要材料,设计、制备不同尺寸的自锁式受力柱试件。通过调整自锁卡扣厚度、卡槽上壁厚度、卡槽侧壁厚度制备了4种试件。并对每种试件进行了抗拉承载力、抗剪承载力、抗震性能测试。结果表明:卡扣厚度为28.6 mm、卡槽侧壁厚度为8 mm、卡槽上壁厚度为28.6 mm时Z1试件的抗拉承载性能更优,具有更高的初始刚度、屈服载荷和极限承载力;而该试件的抗剪极限承载力也达到488.73 kN;同时Z1试件在载荷作用下的环线刚度保持较高水平,且单圈耗能水平持续上升,表现出更好的抗震性能。因此,Z1试件更适用于超高层建筑钢结构。In order to study the bearing capacity of self⁃locking force column of supertall building,Q345B steel was used as the main material to design and prepare self⁃locking force column specimens of different sizes.Four kinds of specimens were prepared by adjusting the thickness of the self⁃locking buckle,the thickness of the upper wall of the slot and the thickness of the side wall of the slot.The tensile capacity,shear capacity and seismic performance of each specimen were tested.The results show that the Z1 specimen with a thickness of 28.6 mm of the buckle,8 mm of the side wall and 28.6 mm of the upper wall has better tensile load performance and higher initial stiffness,yield load and ultimate bearing capacity.The ultimate shear bearing capacity of the specimen reaches 488.73 kN.At the same time,Z1 specimen maintains a high level of loop stiffness under the action of load,and the energy consumption level of single circle continues to rise,showing better seismic performance.Therefore,Z1 specimen is more suitable for super high⁃rise building steel structure.

关 键 词：超高层建筑 钢结构 自锁式 受力柱 承载性能 抗震性能 

分 类 号：TU391[建筑科学—结构工程]