某大跨度空腹桁架结构设计分析和实践  

Analysis and practice of an large-span vierendeel truss structure

作　　者：高志辉[1] 吴立朋[2] 崔恺 Gao Zhihui;Wu Lipeng;Cui Kai(Norendar International Ltd.,Shijiazhuang 050011,China;Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]北方工程设计研究院有限公司,河北石家庄050011 [2]石家庄铁道大学,河北石家庄050043

出　　处：《山西建筑》2020年第17期41-42,62,共3页Shanxi Architecture

摘　　要：结合河北传媒大学新闻学院工程中大跨度空腹桁架结构,利用PKPM SATWE和MIDAS GEN两种有限元软件,对其结构力学和变形性能进行计算分析。结果表明,与主体相连的空腹桁架不同于普通桁架,表现为连续叠合梁的受力特征,整体刚度较弱,弦杆受力状态复杂,而竖向腹杆是结构体系正常工作的关键。此外,对节点连接构造、施工过程影响等设计问题进行了探讨,结论可供类似工程参考。Combined with the large-span vierendeel truss structure in the engineering of Hebei Institute of Communications,the structure mechanics and deformation properties are calculated and analyzed by PKPM SATWE and MIDAS GEN. The results show that the vierendeel truss connected to the main structure is different from the ordinary truss,which is characterized by the force of composite member,the overall stiffness is weak,the string rod force state is complex,and the vertical abdominal rod is the key to the normal working of the structure system. In addition,the design problems such as node connection construction and construction process influence are discussed. The conclusion can be used for reference of similar projects.

关 键 词：空腹桁架 型钢混凝土 变形协调 

分 类 号：TU318[建筑科学—结构工程]