2017年8月上 施工技术 第46卷第15期 CONSTRUCTION TECHNOLOGY 5 D0I:10.7672/8js2017150005 南宁万科大厦大悬挑结构支承体系设计 与施工技术 龚永庆，刘玉涛，韩超，沈映，王洪腾 (中天建设集团有限公司，浙江杭州310020) [摘要]结合南宁万科大厦北楼悬挑结构，根据现场施工存在的支承难题，通过比较4种常用支承体系的优缺点及 经济性，确定临时立柱拉梁的主支承体系，配合梁、板钢管脚手架的应用，解决现场施工平台的问题.设计临时立 柱及拉梁的截面及配筋，通过MIDAS有限元软件，对方案拟定的施工顺序进行有限元模拟分析，结果表明临时立 柱及拉梁受力符合设计要求，能起到良好的支承作用.最后，通过一系列施工操作要点，确保临时立柱拉梁的准确 施工，并通过现场，做到计算与实际相统一，有效指导施工. [关键词]高层建筑：悬挑结构；支承体系；有限元分析；施工技术 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2017)15-0005-04 Support System Design and Construction of the Large Cantilever Structure of North Tower in Nanning Vanke Building GONG Yongqing LIU Yutao HAN Chao SHEN Ying WANG Hongteng Zhongtian Construction Group Co.Ld.Hangzhou Zhejiang 310020 China) Abstract:According to the supporting problems existed in the field construction of the large cantilever structure of north tower in Nanning Vanke Building by paring the merits and the economy of four mon supporting systems the main supporting system of the temporary columns and beams is determined.With the aid of fastener-type steel pipe scaffolding of beams and plates the whole support system is constructed to solve the formwork problem of this project.Finite element software MIDAS is used to simulate the construction sequence which is determined in previous construction scheme.The result shows that the temporary columns and the beams are in accordance with the design requirements and can play a good supporting role.Then by emphasizing a series of construction operation points it e...
南宁万科大厦大悬挑结构支承体系设计与施工技术.pdf
