市政技术2024，Vol.42Issue(9)：32-38,134,8.DOI:10.19922/j.1009-7767.2024.09.032
曲线钢箱梁吊装过程安全性研究
Study on the Safety of Lifting Process of Curved Steel Box Girder
郭水 1张东 1张良 1张旭 1田德身 1付誉捷2
作者信息
- 1. 北京市政建设集团有限责任公司,北京 100079
- 2. 北京工业大学城市建设学部,北京 100124
- 折叠
摘要
Abstract
Based on the unique mechanical properties of curved steel box girders,taken the lifting construction of double box single room curved steel box girder of the Z4 ramp bridge in the rapid transformation of Beiqing Road as the engineering background,this study investigates the impact of various complex factors on construction safety control during the segmented lifting process of curved steel box girders.A finite element model of lifting construction was established by Midas Civil.During lifting construction,the influence of six lifting point layout schemes on safety control parameters such as node displacement,suspension tension,and structural stress of the main beam of the curved steel box girder was analyzed under dual machine lifting conditions.The rationality of the lifting point layout scheme was evaluated.Various construction conditions such as segmented lifting,installation,and the most adverse effects of wind loads on steel box girders was analyzed to determine a reasonable lifting plan and ensure the safety of segmented lifting construction.This research result can provide some reference for similar engineering construction.关键词
曲线钢箱梁/分段吊装/吊点布置/有限元分析/安全性Key words
curved steel box girder/segmented lifting/lifting points layout/finite element analysis/safety分类
交通运输引用本文复制引用
郭水,张东,张良,张旭,田德身,付誉捷..曲线钢箱梁吊装过程安全性研究[J].市政技术,2024,42(9):32-38,134,8.
