内爬式塔式起重机基础下方连梁钢支撑加固数值模拟  

Numerical Simulation of Connecting Beam Steel Support Reinforcement Under Inner Climbing Tower Crane Foundation

作　　者：姜继果 薛晓宏 杨磊 姜子麒 陈龙 JIANG Jiguo;XUE Xiaohong;YANG Lei;JIANG Ziqi;CHEN Long(No.6 Engineering Co.,Ltd.of CR20G,Xi'an,Shaanxi 710032,China)

机构地区：[1]中铁二十局集团第六工程有限公司,陕西西安710032

出　　处：《施工技术（中英文）》2021年第22期15-18,115,共5页Construction Technology

基　　金：住房和城乡建设部科技计划项目:基于智能建造理论的超高层建筑临时支撑结构安全控制关键技术研究(2021-K-077)。

摘　　要：绿地丝路全球文化中心项目因核心筒空间狭小,塔式起重机支撑钢梁有附着点位于核心筒连梁跨中,为保证结构安全储备,增设钢支撑对连梁进行加固。利用MIDAS Gen建立数值模型,计算不同工况下内爬式塔式起重机基础钢梁对核心筒作用点的荷载分布及不同工况下核心筒的受力变形,找出最不利工况方向,加强安全监测。分析柱状支撑和V形支撑结构对核心筒的影响。结果表明,相同条件下,V形支撑加固核心筒效果优于柱状支撑加固。The Greenland Silk Road Global Cultural Center project due to the small space of the core tube, the tower crane supporting steel beam has an attachment point located in the middle of the core tube connecting beam. In order to ensure the safety of the structure, steel pipe supports are added to strengthen the connecting beam. MIDAS Gen is used to establish a numerical model to calculate the load distribution of the inner climbing tower crane foundation steel beam on the core tube under different working conditions and the force and deformation of the core tube, finding out the most unfavorable working condition direction, and strengthening safety monitoring. The influence of columnar support and V-shaped support structure on the core tube is analyzed. The results show that under the same conditions, the effect of reinforcing the core tube with the V-shaped support is better than that of the columnar support.

关 键 词：高层建筑 内爬式塔式起重机 钢管支撑 有限元分析 

分 类 号：TU528[建筑科学—建筑技术科学]