某体育场挑篷钢结构设计与优化  

Design and optimization of steel structure in a stadium

作　　者：王栋 金建民 刘磊 

机构地区：[1]甘肃省建筑设计研究院,甘肃兰州730030

出　　处：《建筑科学》2017年第1期107-112,共6页Building Science

摘　　要：白银市体育场挑篷造型为折扇面半圆弧形,尾部设连续"V"型拉杆固定于下部混凝土柱顶,挑篷结构采用空间桁架体系,结构设计中通过采用不同的桁架布置方式,进行多方案对比选型,最终结合挑篷造型特点对下部结构柱网进行调整,从而简化桁架构形,实现了对挑篷结构的设计优化。本文主要介绍了挑篷结构多方案对比优化的过程,同时对挑篷设计中几个关键问题的处理进行了说明及总结,可供同类工程参考。The space truss system is adopted for cantilevered roof of Baiyin Stadium. The appearance likes a semicircle folding fan. The end of truss is continuous ＂V＂type rod which fixed to the top of the concrete column.The different disposal ways are used in the truss design,and multi-schemes are compared and selected. Finally,the design optimization of the structure is realized by adjusting substructure column grid and simplifying the truss configuration. The optimization process of cantilevered roof is mainly introduced as well as some key problems during the design in this paper. It can provide references for similar projects.

关 键 词：大悬挑 钢管桁架 结构优化 整体分析 节点 

分 类 号：TU393.3[建筑科学—结构工程]