摘要
曲靖体育场钢屋盖为大跨悬挑管桁架结构，采用“地面拼装成段、跨外分段吊装、高空对接合龙”的施工工艺。钢屋盖结构受安装路径效应影响较大，故采用SAP2000非线性旋工模块按实际逐榀安装平面桁架模拟安装过程。研究表明，大部分构件应力比集中在0—0．1，具有富足的施工安全储备；钢屋盖的“X”形单元在安装过程中的相对独立性较好，冬季降温对体育场施工影响不大。
The steel roof of Qujing Stadium is a large-span suspended pipe truss structure. The structure was assembled into segments, hoisted outside the plan, and closed in the air. The impact of process can＇t be neglected, so the erection process was simulated and analyzed by SAP2000. Simulation on every installation step of plan truss agrees with actual situation. The result shows that the stress ratio of most members is between 0 and 0. 1. The ＂X＂ structure unit is relatively independent to each other. The low temperature in winter has little influence on the construction.
出处
《施工技术》
CAS
北大核心
2013年第17期121-125,共5页
Construction Technology
基金
云南大型复杂钢结构施工控制关键技术及工程示范研究(2013CA023)
关键词
安装
钢结构
施工效应
模拟
installation
steel structures
construction effect
simulation
