钢管网架杆件稳定性设计及结构动力性能分析

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英文篇名：Members stability design and structural dynamic performance analysis of lattice grid structure with steel tube 中文刊名：中南林业科技大学学报 英文刊名：Journal of Central South University of Forestry & Technology 作者：任森智 ; 贺国京 英文作者：REN Sen-zhi ; HE Guo-jing(School of Civil Engineering and Mechanics ; Central South University of Forestry & Technology ; Changsha 410004 ; Hunan ; China) 中文关键词：网架结构 ; 稳定设计 ; 动力性能 英文关键词：lattice grid structure ; stability design ; dynamic performance 出版日期：2011-07-15 机构：中南林业科技大学土木工程与力学学院; 年：2011 期：07 出版单位：中南林业科技大学学报

摘要

考虑网架结构构件稳定性设计的重要性,结合规范的相关要求,推导了网架结构圆钢管压杆稳定控制时截面设计的计算公式,算例表明该方法能避免繁琐的试算过程,便于工程设计人员进行稳定性计算及复核。分别将网架支座设置为刚铰支座及弹性支座,比较了网架结构的动力特性,并进一步分析了网架结构的地震响应,得出了相应的位移时程曲线,结果表明网架在地震作用下的挠度能满足要求。
The importance of component design of stability of lattice grid structure was considered,combining related requirements of the code for design of steel structures,a practical calculation method for circular cross-section design of lattice grid structure was derived.The calculated example shows that this method is simple and can avoid pilot-calculation course,it is convenient to stability design and review.The supports of lattice grid were set rigid hinged supports and elastic supports respectively,the natural characteristics of lattice grid were compared,and seismic response of the lattice grid was analyzed,displacement time-history curves were derived,the results shows that the deflection of this lattice grid can meet demands.

引文

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