大跨度拱桁架结构方案优化分析  

Optimization Analysis on Steel Truss Structure for Long-span Arch Truss Structure

作　　者：王伟[1] 

机构地区：[1]太原理工大学建筑与土木工程学院,山西太原030024

出　　处：《科学之友（中）》2010年第2期61-62,共2页Friend of Science Amateurs

摘　　要：文章以陕西省榆林市漠海丽江餐饮有限公司餐饮中心生态种植区的钢屋盖结构为研究对象,根据甲方对结构空间、用钢量和对下部结构负荷小的要求,首先用设计程序3D3S8.0对结构进行了初步设计,定出了支座间不拉索和杆、拉索和拉杆3个方案,然后用分析软件ANSYS研究其桁架静力和动力特性,并计算了拉索方案预应力的合理取值,计算结果表明:拉杆方案的用钢量、竖向挠度小且施工难度低,因此,工程中采用了拉杆方案。In this paper, taking Shanxi Province, Yulin City, Mo Hai River Restaurant Limited Catering Center for Eco-growing areas of the steel roof structure as the research object, according to Party A on the structure of space, the amount of steel and the substructure load a small request, first,carried out a preliminary design of the structure with the design process 3D3S8.0,set a bar between the non-cable and bar,cable and bar three programs, and then use analysis software ANSYS to study the static and dynamic characteristics of truss and calculated the reasonable value of prestressed cable.The calculation results show that： the amount of steelbar program, vertical deflections were small and the low degree of difficulty of construction, therefore, The project has adopted the bar program.

关 键 词：张弦拱桁架 索 拉杆 预应力分析 屋盖结构选型 

分 类 号：TU758[建筑科学—建筑技术科学]