无锡万达秀场钢屋盖高空散拼模拟分析与验证
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摘要
以无锡万达秀场钢屋盖项目为例,介绍高空散拼可行性及力学分布;模拟分析整个安装过程中各区块结构受力情况,得出结构应力分布情况和各桁架位移值;对比分析各工况下结构最大应力和最大变形情况,验证本方案可行性,各力学特性均符合规范要求;最后提出消除安装变形预起拱措施,将预起拱引入各施工阶段、各安装区块;最后,通过实际工程实施过程中的变形监测,验证施工模拟的正确性,对其控制精确性进行定性分析,并提出后续研究定量分析的重要性。
Taking Wuxi Wanda Show steel roof project as an example,this paper introduces the feasibility and mechanical distribution of high altitude assembling seperately,simulates and analyzes the stress distribution of every block structure in the whole installation process,obtains the stress distribution of the structure and the displacement value of every truss,compares and analyzes the maximum stress and deformation of the structure under different working conditions,verifies the feasibility of this scheme and the mechanics of every block. The characteristics meet the requirements of specifications. Finally,the measures to eliminate installation deformation pre-arch are put forward,and the pre-arch is introduced into every construction stage and every installation block. The correctness of construction simulation is verified by deformation monitoring in the actual project implementation process,and its control accuracy is qualitatively analyzed,and the importance of quantitative analysis in the follow-up study is put forward.
Taking Wuxi Wanda Show steel roof project as an example,this paper introduces the feasibility and mechanical distribution of high altitude assembling seperately,simulates and analyzes the stress distribution of every block structure in the whole installation process,obtains the stress distribution of the structure and the displacement value of every truss,compares and analyzes the maximum stress and deformation of the structure under different working conditions,verifies the feasibility of this scheme and the mechanics of every block. The characteristics meet the requirements of specifications. Finally,the measures to eliminate installation deformation pre-arch are put forward,and the pre-arch is introduced into every construction stage and every installation block. The correctness of construction simulation is verified by deformation monitoring in the actual project implementation process,and its control accuracy is qualitatively analyzed,and the importance of quantitative analysis in the follow-up study is put forward.
引文
[1]顾国忠,陈晓亮,李洋,等.大跨度三心圆柱面网壳结构的高空悬挑散件拼装技术[J].建筑施工,2013,35(1):46-47,50.
[2]焦安亮,陈泽君.某综合体育馆的高空散装法施工[J].施工技术,2007,36(10):32-34,37.
[3]田伟.鄂尔多斯机场钢结构施工技术与模拟分析[C]//大型复杂钢结构建筑工程施工新技术与应用论文集,2012.
[4]中国建筑科学研究院.建筑结构荷载规范:GB 50009—2012[S].北京:中国建筑工业出版社,2012.
[5]中国建筑股份有限公司,中建钢构有限公司.钢结构工程施工规范:GB 50755—2012[S].北京:中国建筑工业出版社,2012.
[6]冶金工业部建筑研究总院.钢结构工程施工质量验收规范:GB 50205—2001[S].北京:中国计划出版社,2002.
[2]焦安亮,陈泽君.某综合体育馆的高空散装法施工[J].施工技术,2007,36(10):32-34,37.
[3]田伟.鄂尔多斯机场钢结构施工技术与模拟分析[C]//大型复杂钢结构建筑工程施工新技术与应用论文集,2012.
[4]中国建筑科学研究院.建筑结构荷载规范:GB 50009—2012[S].北京:中国建筑工业出版社,2012.
[5]中国建筑股份有限公司,中建钢构有限公司.钢结构工程施工规范:GB 50755—2012[S].北京:中国建筑工业出版社,2012.
[6]冶金工业部建筑研究总院.钢结构工程施工质量验收规范:GB 50205—2001[S].北京:中国计划出版社,2002.