建筑钢结构进展2017，Vol.19Issue(2)：68-73,6.DOI:10.13969/j.cnki.cn31-1893.2017.02.010
天津某采光顶双向张弦梁设计及分析
The Design and Analysis of a Dual-Directional Beam String Structure for a Lighting Roof in Tianjin
摘要
Abstract
Based on the characteristics of dual directional beam string structure,the structural system selection and design of a lighting roof in Yujiapu are described in details.The size of the lighting roof is 33.45 m× 31.35 m.In this paper,software MIDAS/Gen is used to calculate the influence of prestress on the displacement of the dual-directional beam string structure.The prestress applied to the cable of the dual-directional beam string structure is determined,and the feasibility of method is verified.The calculation in the design software is checked,and the limitation of the method to prestressed structure is obtained.The improvement on the method is proposed.Meantime a new prefabricated joint is proposed.The new joint is intersected by six different beams,which avoids the intersection between two beams and small welding angles.关键词
双向张弦梁/结构设计/预应力结构/线性叠加Key words
dual-directional beam string structure/structural design/prestessed structure/linear superimposition分类
建筑与水利引用本文复制引用
王鑫,陈志华,闫翔宇,马青,姜玉挺,孟祎,刘红波..天津某采光顶双向张弦梁设计及分析[J].建筑钢结构进展,2017,19(2):68-73,6.基金项目
国家自然科学基金(51478310),天津市建设系统科学技术发展计划(2014-01) （51478310）
