| 索穹顶结构局部断索分析 |
| |
| 引用本文： | 何键,袁行飞,金波.索穹顶结构局部断索分析[J].振动与冲击,2010,29(11):13-16. |
| |
| 作者姓名： | 何键 袁行飞 金波 |
| |
| 作者单位： | 1. 浙江大学,空间结构研究中心,杭州,310058
2. 杭州科技职业技术学校,杭州,310030 |
| |
| 基金项目： | 国家自然科学基金，浙江省自然科学基金 |
| |
| 摘 要： | 索穹顶结构是由索和杆为基本构成单元,通过预应力提供刚度的一类新型索杆空间结构体系。为考察结构中局部索(杆)破坏对整体结构的影响,以某体育馆索穹顶结构方案为背景,采用动力学方法模拟了各类杆件破断后其他杆件内力的变化和结构最终到达的平衡位置。通过观察局部索(杆)破坏是否引起其它索松弛从而造成较大节点变位来判断结构体系是否安全,通过观察局部索(杆)破坏是否引起其它索杆的强度破坏来判断结构是否连续倒塌,同时区分了不同位置杆件的安全等级。该研究对于该类结构的正常使用和维护有一定的借鉴意义。
|
| 关 键 词： | 索穹顶 索杆体系 索破断 索松弛 连续倒塌 |
| 收稿时间： | 2009-5-21 |
| 修稿时间： | 2010-8-5 |
Analysis of cable domes with rupture of local cable |
| |
| HE Jian,YUAN Xing-fei,JIN Bo.Analysis of cable domes with rupture of local cable[J].Journal of Vibration and Shock,2010,29(11):13-16. |
| |
| Authors: | HE Jian YUAN Xing-fei JIN Bo |
| |
| Affiliation: | HE Jian1,YUAN Xing-fei1,JIN Bo2(1.Space Structures Research Center,Zhejiang University,Hangzhou 310058,China,2.Hangzhou Polytechnic College,Hangzhou 310030,China) |
| |
| Abstract: | A cable dome composed of cables and struts is a new type of cable-strut system whose stiffness is provided by prestress.To investigate the structural behavior after one cable (strut) ruptured,dynamic method was adopted to simulate the process of cable rupture.The change of internal forces of other members and the final equilibrium position of the structure after failure of different members was investigated.The safety of the structure was evaluated by observing if the rupture of local cable caused slack of ... |
| |
| Keywords: | cable dome cable-strut system rupture of cable slack of cable progressive collapse |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《振动与冲击》浏览原始摘要信息 |
|
点击此处可从《振动与冲击》下载全文 |
|
