大跨度复杂组合钢屋盖整体提升施工全过程力学分析

邹孔庆; 刘果; 吴义兵; 丁仕洪; 宋智丰

doi:10.13204/j.gyjzG201906170007

大跨度复杂组合钢屋盖整体提升施工全过程力学分析

doi: 10.13204/j.gyjzG201906170007

1. 中铁四局集团钢结构建筑有限公司, 合肥 230022;
2. 合肥工业大学土木与水利工程学院, 合肥 230009

基金项目:

中铁四局集团有限公司科技研发项目（201816）。

详细信息

作者简介:
邹孔庆,男,1990年出生,硕士,工程师。电子信箱:zoukongqing@163.com

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- 文章访问数: 240
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- 被引次数: 0
出版历程
- 收稿日期: 2020-10-20
- 网络出版日期: 2021-09-16
- 刊出日期: 2021-09-16

MECHANICAL ANALYSIS OF THE INTEGRAL LIFTING PROCESS FOR A LONG-SPAN AND COMPLEX ASSEMBLED STEEL ROOF

1. Steel Structure Co., Ltd., China Railway Siju Civil Engineering Group, Hefei 230022, China;
2. Department of Civil Engineering, Hefei University of Technology, Hefei 230009, China

摘要

摘要: 凤阳体育馆屋盖是由钢桁架、内环网架及钢拉索组成的大跨度复杂组合钢结构，结构高度24 m，跨度82.2 m，投影面积约11 851 m²。针对该工程的特点，借助大型分析软件建立了钢屋盖三维结构计算模型。首先，阐述该工程整体提升施工方案，确定提升点选择和主要施工步骤。其次，通过施工各阶段力学分析、施工阶段成形与一次成形对比、温度变化及提升点标高偏差对结构影响等方面的分析，验证施工过程的安全性、结构成形的合理性，并对辅助结构中提升吊耳细部结构、提升支架进行设计和力学分析。最后，通过安全监控手段，验证了力学分析的可靠性，为钢屋盖结构的安全施工提供了基本保障。
- 组合结构 /
- 整体提升 /
- 施工 /
- 力学分析 /
- 有限元法 /
- 监控
Abstract: The roof of Fengyang Gymnasium is a long-span complex assembled steel structure composed of steel trusses, inner ring grids and steel cables, the height of the structure is 24 m, the span is 82.2 m, and the projected area is about 11 851 m². According to the characteristics of the project, the three-dimensional computational model of the steel roof was established by means of large analysis software. Firstly, the integral lifting construction scheme was described, the selection of lifting points and main construction steps were determined. Secondly, through the mechanical analysis at each stage of construction, the comparisons between the forming at construction stage and the once-forming, the analysis of the influence of temperature change and elevation deviation of lifting point on the structure, the safety of the construction process and the rationality of the structure forming were verified, the design and mechanical analysis of lifting lug and lifting bracket in auxiliary structure were carried out. Finally, by means of safety monitoring, the reliability of the mechanical analysis was verified, and the basic guarantee for the safe construction of the steel roof structure was provided.
- assembled structure /
- integral lifting /
- construction /
- mechanical analysis /
- finite element method /
- monitoring

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参考文献(7)

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