新型钢束柱体系的稳定性能研究  

Structural Stability of New Type Steel Bound-Column System

作　　者：王庆贺 王仕奇 陈宇[2] 张龙巍 WANG Qinghe;WANG Shiqi;CHEN Yu;ZHANG Longwei(School of Civil Engineering,Shenyang Jianzhu University,Shenyang,China,110168;School of Architecture and Urban Planning,Shenyang Jianzhu University,Shenyang,China,110168)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]沈阳建筑大学建筑与规划学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2021年第4期610-618,共9页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51978418);天津市科技计划项目(18ZXGDGX00030);辽宁省科技厅博士科研启动项目(2019-BS-193);沈阳市中青年科技人才项目(RC200143)。

摘　　要：目的研究新型钢束柱体系的稳定性能,为实际工程的应用及相关试验研究提供理论依据。方法基于边缘屈服准则建立稳定性计算模型,分析弦板间距、计算长度、荷载偏心距、荷载角等参数对构件稳定性能的影响规律。结果钢束柱体系的稳定性能随弦板间距、计算长度、荷载偏心距的增大而降低,而单肢柱的稳定性不受计算长度影响;钢束柱体系的稳定性随荷载角的增大呈现先减后增的趋势,其中四肢钢束柱体系的单肢柱稳定性不受荷载角影响;当荷载角θ>36.7°时,采用环形弦板的六肢钢束柱体系的单肢柱稳定性优于采用矩形弦板的六肢钢束柱体系的单肢柱稳定性。结论考虑荷载初偏心时,六肢钢束柱体系的稳定性优于四肢钢束柱体系,其中采用矩形弦板的束柱体系的稳定性优于采用环形弦板的束柱体系。The stability behavior of new type steel bound-column system was investigated so as to provide a theoretical basis for practical engineering application and related experimental research.Following the edge yield criterion this stability calculation model of the new type steel bound-column system is established to analyze the influence of chord spacing,calculation length,load eccentricity and load angle on the stability performance of components.The stability performance of steel bound-column system decreases with increasing load eccentricity,chord-plate spacing and calculation length,while the stability of single column is independent of calculation length.The stability of the steel bound-column system first decreases and then increases with increasing load angle.The single column stability of the four-limb steel bound-column system is not affected by load angle.When the load angle θ is greater than 36.7°,the single column stability of the six-limb steel bound-column system with annular chord plate is better than that of the six-limb steel bound-column system with reinforcement chord plate.The stability of the six-limb steel bound-column system is better than that of the four-limb steel bound-column system when considering the initial load eccentricity,and the bound-column system with rectangular chord plate better than that with annular chord plate.

关 键 词：钢束柱体系 单肢柱 双向压弯 稳定性 最不利荷载角 

分 类 号：TU318[建筑科学—结构工程]