预应力空间斜拉悬吊中央钢结构施工方法及过程分析研究  

RESEARCH ON CONSTRUCTION METHOD AND PROCESS ANALYSIS OF PRESTRESSED SPACE CABLE-STAYED SUSPENSION CENTRAL STEEL STRUCTURE

作　　者：黄健飞 罗斌[1,2] 张宁远 王召 HUANG Jianfei;LUO Bin;ZHANG Ningyuan;WANG Zhao(School of Civil Engineering,Southeast University,Nanjing 211189,China;National Prestress Engineering Research Center,Southeast University,Nanjing 211189,China;China Construction Seventh Engineering Bureau Co.,Ltd.,Zhengzhou 450004,China)

机构地区：[1]东南大学土木工程学院,南京211189 [2]东南大学国家预应力工程技术研究中心,南京211189 [3]中国建筑第七工程局有限公司,郑州450004

出　　处：《工业建筑》2021年第10期47-52,共6页Industrial Construction

基　　金：国家自然科学基金项目(11673039)。

摘　　要：预应力空间斜拉悬吊中央钢结构是大跨空间结构中的一种特殊结构形式,它主要由斜向的承重索、中部钢结构和下部的稳定索组成。中国海洋大学综合楼的斜拉船屋结构是该结构形式的典型应用,主要包括采光顶和船屋钢构件、承重索和稳定索。基于该工程实例,提出了斜拉悬吊结构的施工方法:首先通过斜向牵引承重索将中部钢结构提升至高空;然后安装和张拉配重工装索;安装采光顶和稳定索并撤除配重工装索。过程中通过调整配重工装索索力使中部钢结构保持在设计标高是关键之一。根据结构特点和施工方法,通过对承重索和关键施工工况的配重工装索的找力分析以及施工过程典型工况的分析,揭示结构响应的变化规律,达到了关键工况的预定控制目标。The prestressed space cable-stayed suspension structure is a special structural form in the long-span space structure. It is mainly composed of diagonal load-bearing cables,central steel structure and lower stabilizer cables.The cable-stayed houseboat structure of the comprehensive building of Ocean University of China is a typical application of this structure. It mainly includes roof grid,houseboat steel members,load-bearing cables and stabilizer cables. Based on this engineering example, the paper proposed the construction method of the cable-stayed suspension structure. Firstly,the central steel structure was lifted to the height by diagonally pulling the load-bearing cable. Then the counterweight tooling cable was installed and tensioned. Then the daylighting roof and the stabilizer cable were installed in sequence and the counterweight tooling cable was removed. In the process,it was one of the keys to keep the central steel structure at the design elevation by adjusting the cable force of the counterweight tooling. According to the structural characteristics and construction methods,the force-finding analysis of the loadbearing cables and counterweight tooling cables in key construction conditions and the analysis of typical conditions in the construction process were conducted. The change laws of structural response changes were revealed and the predetermined goals of the key conditions were reached.

关 键 词：斜拉悬吊结构 斜拉牵引 配重工装索 找力分析 施工过程分析 

分 类 号：TU758.11[建筑科学—建筑技术科学]