索承网壳结构成形阶段拉索张拉顺序的研究  

Research on Tension Sequence During the Stage of Form Finding for Cable-supported Lattice Shell Structures

作　　者：李永梅[1] 王勇刚 张毅刚[1] 

机构地区：[1]北京工业大学,北京100022 [2]北京中科建筑设计研究院有限责任公司,北京100080

出　　处：《施工技术》2007年第3期24-27,共4页Construction Technology

基　　金：国家自然科学基金(50278004)资助项目;北京工业大学青年科研基金(97004012200501)资助项目

摘　　要：对目前正在国内外引起广泛关注的索承网壳结构提出逐环拼装张拉成形的新型无脚手架施工方法,并利用循环前进分析方法进行施工全过程仿真分析,通过比较不同拉索张拉方式,给出合理的拉索张拉顺序和张拉方案。In this article, a novel construction method without scaffold work, called as the assemblyprestressing form finding loop by loop, was presented for the cable-supported lattice shell structure, which is widely paid attention in the world. Then the computer simulation analysis to all prestressing process was carried out by means of the cycle-forward analysis method for construction. Finally the reasonable prestressing sequence and also prestressing scheme were given according to comparing two different prestressing ways.

关 键 词：索承网壳 逐环拼装张拉成形 循环前进分析 张拉顺序 

分 类 号：TU394[建筑科学—结构工程]