摘要
在钢箱梁施工方案比选中,受现场起重设备等因素影响,顶推施工越来越受工程师青睐。为保证施工安全,减少辅助墩数量,一般需要设置较长的导梁进行辅助施工,因此对导梁和主梁进行安全分析变得尤为重要。以某(50+85+50)m钢箱梁为工程实例,利用Midas Civil对其施工关键工况进行模拟分析,计算结果表明:顶推施工过程中,结构强度、刚度及稳定性满足要求。
In the comparison of construction schemes of the steel box girder,affected by factors such as on-site lifting equipment,the incremental launching construction is becoming more and more popular with engineers.To ensure construction safety and reduce the number of auxiliary piers,setting a longer launching nose is necessary to assist in the construction,so,it is vital to analyze the safety of the launching nose and main beam.In this paper,taking a steel box girder of(50+85+50)m as an engineering practice,the key working conditions are simulated by Midas Civil.The calculation results show that during the incremental launching construction,the structural strength,stiffness,and stability meet the requirements.
作者
王洪梽
张全帅
王其林
刘波
WANG Hong-zhi;ZHANG Quan-shuai;WANG Qi-lin;LIU Bo(Yantai University,Yantai,Shandong 264003,China;Jiangsu Expressway Engineering Maintenance Co.,Ltd.,Huaian,Jiangsu 223001,China)
出处
《山西交通科技》
2023年第2期72-75,共4页
Shanxi Science & Technology of Transportation
关键词
钢箱梁
步履式顶推施工
导梁
有限元模拟
受力分析
steel box girder
walking incremental launching construction
launching nose
finite element simulation
stress analysis
