外爬塔式起重机附着墙体加固分析.pdf

2015年7月上 施工技术 第44卷第13期 CONSTRUCTION TECHNOLOGY 121 D0I:10.7672/sgis2015130121 外爬塔式起重机附着墙体加固分析 王三港，李庆达，乔伟，杨磊 (中建三局集团有限公司，北京100097) [摘要]根据项目外爬塔式起重机受力特点，建立塔式起重机及支撑架一体化计算模型，确定塔式起重机支撑架最 不利工况并根据塔式起重机支撑架附着墙体反力计算墙体配筋对墙体进行加固.加固措施解决了“一”字形剪力 墙因墙体变薄引起的墙体结构承载力不足、平面外稳定及墙体开裂等问题，并满足在混凝土强度未达到结构设计 要求时顺利爬升. [关键词]高层建筑；塔式起重机；加固；承载力；稳定性 [中图分类号]TH213.3 [文献标识码]A [文章编号]1002-8498(2015)13-0121-04 Reinforcement Analysis on Wall Attached of Tower Crane Wang San'gang Li Qingada Qiao Wei Yang Lei China Construction Third Engineering Bureau Group Co.Ltd. Beijing 100097 China) Abstract:According to the particularity of tower crane the calculation model of integration of tower crane and support frame was established.The worst working condition of support frame was determined.And the wall was reinforced by means of the reaction force calculation of tower crane support frame attaching to the wall.The measures solved the issue of the insufficient of the structure bearing capacity the out-of- plane stability the wall cracking which caused by the attenuation of the“一"shaped wall.And it made the tower crane climbing when concrete strength can not reach the design strength. Key words:tall buildings;tower cranes;reinforcement;bearing capacity;stability 1工程概况 47~51层700mm 51~56层550mm 56层~屋顶 1.1结构概况 楼面500mm. 天津现代城B区项目位于天津市和平区内，南 1.2爬塔支撑架概况 侧毗邻伊势丹商场，总建筑面积263797m2 其中地 塔式起重机支撑架主要构件为水平主梁、竖向 上214201m2 地下49596m2 由酒店塔楼(209m 47 斜撑、水平斜撑及水平连接杆，施工过程中至少有2 层)、办公塔楼(339m 67层)、裙房（最高10层）及 套支撑架附着于墙上，底部支撑架提供竖向及水平 地下室(5层)组成. 支撑力，上部支撑架提供水平支...