科技广场Issue(5)：10-14,5.
预应力索杆结构的施工张力偏差分析
Construction Tension Analysis of Pre-stressed Cable-strut Structure
徐闽涛 1蒋本卫 2程军2
作者信息
- 1. 中天建设集团浙江钢构有限公司,浙江杭州311305
- 2. 浙江大学空间结构研究中心,浙江杭州310058
- 折叠
摘要
Abstract
Considering the cause of length errors of cables, the initial pre-stressed deviations of cable-strut ten- sile structures under pretension process are analyzed. The mathematically random distribution model of cable length error is discussed. A numeric strategy of calculating the cable length error effect is suggested. An illustrative example of a practical mast-cable hybrid system is employed to investigate the influence of different length error distributions on the initial structural pre-stress. Furthermore, the impacts on reduction of length error effects under two kinds of pretension schemes are compared. The results indicate that the reduction of pre-stress deviation de- pends on the reasonable tensioning scheme.关键词
预应力索杆结构/索长误差/预应力偏差/施工张拉Key words
Cable-strut Tensile Structures/Length Error of Cable/Pre-stressed Deviation/Pretension分类
建筑与水利引用本文复制引用
徐闽涛,蒋本卫,程军..预应力索杆结构的施工张力偏差分析[J].科技广场,2012,(5):10-14,5.
