摘要
交错桁架结构近年来成为国内外学者广泛关注的一种经济、实用、高效的结构形式,但对其抗震性能的研究很少.采用壳单元和梁单元相结合的三维非线性有限元分析模型,考虑了桁架杆件的断裂、初始缺陷,分析了两个交错桁架结构体系试件在循环荷载作用下的性能,从屈服荷载、极限荷载及滞回曲线等方面综合对比了有限元分析结果与试验结果,比较结果表明,此计算模型精确、高效,适用于交错桁架结构体系的滞回性能分析.
Staggered truss frame structures characterized by their economy,efficiency and practicability have drawn wide attention in academic field in recent years,but the research onits seismic behavior is still rare.A nonlinear finite element method was induced for analyzing the staggered truss steel structure under cycle load,in which the shell and beam element was applied,the rupture and initial bent of web member of truss are considered.It was shown by computed examples through yield load,ultimate load and hysteretic curve that simulation of presented specimen was accurate and efficient,and the finite method used in the paper was appropriate for the analysis of the steel staggered truss structures.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2010年第6期823-828,共6页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
科技部科研院所专项基金项目(2004EG131165)
陕西省自然科学基金项目(2001C31)
西安建筑科技大学青年科技基金项目(QN0911)
关键词
钢交错桁架结构
循环荷载
滞回性能
有限元
steel staggered truss frame structure
cycle loading
hysteretic behavior
finite element
