摘要
以赤壁市体育场钢结构顶棚为研究对象,顶棚分看台区及非看台区,采用倒三角管桁架空间结构体系,看台区桁架通过V形圆钢管支撑在下部混凝土柱上及外围拉杆上;非看台区桁架支撑在V形圆钢管柱上。由径向主桁架、刚性系杆、交叉支撑及环向次桁架组成的结构体系整体性能好,通过檩条将荷载传给主桁架,再通过圆钢管柱或拉杆传给下部混凝土柱中,传力简单,受力明确。利用YJK软件建模,Midas Gen软件计算分析,考虑恒载、活载、温度作用、地震作用、风荷载的组合,验算钢结构杆件截面应力比、整体挠度变形及其稳定性。结果分析标明,此体育场钢结构顶棚采用倒三角空间桁架体系,满足规范的安全性、适用性及耐久性,且含钢量低,经济效益好,为今后类似工程结构的设计分析提供参考依据。
Taking the steel structure roof of Chibi City Sports Center as the research object,the roof is divided into the grandstand area and the non-grandstand area,and the inverted triangle tube truss spatial structure system is adopted.The truss of the grandstand area is supported on the lower concrete column and the peripheral tie rod by V-shaped steel pipe.The non-grandstand trusses are supported on V-shaped round steel pipe strings.The structural system composed of radial main truss,rigid tie bar,cross support and annular secondary truss has good overall performance.The load is transmitted to the main truss through purlin,and then to the lower concrete column through round steel pipe column or tie bar.The force transmission is simple and the force is clear.By using YJKS2.0.1 software modeling and Midas Gen software calculation and analysis,considering the combination of dead load,live load,temperature action,earthquake action and wind load,check the cross-section stress ratio,overall deflection deformation and stability of steel structure members.The results show that the roof of the steel structure of the stadium adopts inverted triangle space truss system,which meets the safety,applicability and durability of the code,and has low steel content and good economic benefit,which provides a reference for the design and analysis of similar engineering structures in the future.
作者
黎玲
潘朝阳
LI Ling;PAN Chaoyang(Citic General Institute of Architectural Design and Research Co.,Ltd.,Wuhan 430014,China;China Construction Seventh Engineering Division Co.,Ltd.,Zhengzhou 450004,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期543-545,共3页
Building Structure
关键词
钢结构顶棚
倒三角空间桁架
荷载组合
steel structure ceiling
inverted triangular space truss
load combination
作者简介
黎玲,硕士,中级工程师,Email:626893137@qq.com;通信作者:潘朝阳,学士,助理工程师,Email:746236011@qq.com
