海南大学学报（自然科学版）2025，Vol.43Issue(2)：160-168,9.DOI:10.15886/j.cnki.hdxbzkb.2024031004
桁架式轻钢结构抗震性能研究
Seismic behavior of truss-type light steel structure
摘要
Abstract
In order to study the effects of the continuous truss on the shock resistance performance of the truss-type cold-curved thin-walled steel structure,in the report,the truss position,quantity and test parts were taken into account,a two-foot-foot skeleton model was designed and constructed,the low-frequency cyclic loading test was performed to analyze the hysteretic behavior,stiffness degradation,bearing capacity deterioration,and energy consumption.The results indicated that the continuous truss structure had a good effect on improving the continuity and integrity of the skeleton model.The continuous truss structure set on the left and right sides of the opening model withstood the large horizontal loads and coordinated the deformation with the other components.Compared with the intermediate settings,the bearing capacity of the non-cave model increased by 3.4％,and the cumulative energy consumption under the same displacement condition increased by 27.5％,which suggested that the continuous truss structure can improve the bearing capacity and energy consumption performance of the test parts.The numerical analysis data of the finite element method demonstrated that when the area of the truss cross section increased from 13.2 cm2 to 31.2 cm2,the carrying capacity increased by 157.37％,the anti-side stiffness increased by 157.89％.Increasing the area of the truss cross section can effectively improve the seismic performance of the structural model.关键词
连续桁架结构/抗震性能/拟静力试验/骨架模型Key words
continuous truss structure/seismic performance/quasi-static test/skeleton model分类
建筑与水利引用本文复制引用
张特,曾翔,曹宝珠..桁架式轻钢结构抗震性能研究[J].海南大学学报（自然科学版）,2025,43(2):160-168,9.基金项目
国家重点研发计划(2019YFD1101003) （2019YFD1101003）
