轮辐式大跨度张拉结构地震反应分析(Ⅱ)

冼耀强; 刘伯权; 丁江澍

doi:10.13204/j.gyjz201105028

轮辐式大跨度张拉结构地震反应分析(Ⅱ)

doi: 10.13204/j.gyjz201105028

1.
1. 长安大学建筑工程学院,西安710061;
2.
2. 招商局地产控股股份有限公司,广东佛山528000;
3.
3. 佛山市建筑工程质量检测站,广东佛山528000

基金项目:

佛山市科技专项发展基金项目(2007055B)

详细信息

作者简介:
第一作者：冼耀强, 男, 1973年出生, 博士研究生, 国家一级注册结构工程师。E-mail：xianyq@yeah.Net

中图分类号: TU399;TU311.3
计量
- 文章访问数: 93
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- PDF下载量: 27
- 被引次数: 2
出版历程
- 收稿日期: 2010-12-24
- 刊出日期: 2011-05-20

SEISMIC RESPONSE OF A RUNG-SHAPE LONG SPAN TENSILE STRUCTURE(Ⅱ)

1.
1. School of Civil Engineering,Chang’an University,Xi’an 710061,China;
2.
2. China Merchants Property Development Co.Ltd,Foshan 528000,China;
3.
3. Construction Engineering Quality Testing Station of Foshan,Foshan 528000,China

摘要

摘要: 以世纪莲体育中心轮辐式大跨度张拉索膜结构为研究对象，分析索系预应力变化时，地震作用下结构的动力反应。结果表明：索系预应力增大，结构刚度增加，地震作用下索系竖向位移减小，但其他杆件竖向位移增大，结构内力增加，地震力造成的损伤也增大；部分预应力索松弛对索系及压环轴应力影响不大，但对压环和腹杆的弯矩、索系及压环的位移影响较大，可通过监测构件内力及位移的变化来判断结构的损伤。
- 轮辐式大跨度张拉结构 /
- 动力特性 /
- 地震作用 /
- 预应力松弛
Abstract: The rung-shape long-span tensile cable-membrane structure in Foshan Century Lotus Stadium was conducted to investigate its dynamic responses under earthquake waves when its cable's prestressing was changed.Results show that the structure's stiffness increases with increasing the prestressing of the cable system.At the same time, the vertical displacement of the cable system decreases under seismic loading, but other members' vertical displacement and their internal force increase.And the damage by seismic action to the structure also increases.The slacking of some cables' prestressing has little effects on the axis stress of the cable system and the compression ring, but more effects on their displacement.It has also more effects on the bending moment of the compression ring and the truss web.The damage of the structure can be identified by monitoring the changes of its displacement and internal force.
- rung-shape long-span tensile structure /
- dynamic characteristics /
- seismic loading /
- prestress relaxation