摘要
湖北省科技馆新馆主体采用核心筒-钢桁架-预应力拉索结构,针对拉索需在高空穿越4个导索管的施工难题,采用手拉葫芦+塔式起重机辅助的施工方法保证拉索安装质量。针对拉索张拉过程中可能存在群索效应问题,对拉索张拉全过程及工程竣工后拉索张拉状态采用有限元软件SAP2000进行模拟分析,确定拉索张拉方案且提高拉索张拉效率。针对拉索张拉施工过程结构受力变化复杂的难题,对结构关键部位进行实时监测,并与有限元计算结果结合,确保张拉施工过程的安全性。
The main body of Hubei Science and Technology Museum new hall adopts the structure of core tube-steel truss-prestressed cable. Aiming at the construction problem that the cables need to pass through four guide pipes at high altitude,the construction method of hand-pulled hoist+tower crane assistance is adopted to ensure the installation quality of the cables. In order to solve the problem of "group cable effect"in the process of cable tension,finite element software SAP2000 is used to simulate the whole process of cable tension and the state of cable tension after the completion of the project,to determine the cable tension scheme,and to improve the cable tension efficiency. Aiming at the difficult problem of complicated structural stress change during cable tension construction,the key parts of the structure are monitored in real time and combined with the finite element calculation results to ensure the safety of the tension construction process.
作者
温杰
李友元
夏华盛
黄心颖
李健强
吕效祥
WEN Jie;LI Youyuan;XIA Huasheng;HUANG Xinying;LI Jianqiang;Lü Xiaoxiang(General Construction Company of CCTEB Group Co.,Ltd. ,Wuhan ,Hubei 430063 ,China)
出处
《施工技术》
CAS
2019年第14期42-44,共3页
Construction Technology
基金
中建三局集团有限公司工程总承包公司:现代科技馆工程建造关键技术研究与应用(CSCEC3B-2017-07)
关键词
拉索
安装
张拉
有限元分析
监测
施工技术
cables
installation
tension
finite element analysis
monitoring
construction
