[1]管东芝,朱明亮,郭正兴,等.预应力条形钢拉板索穹顶及施工全过程分析[J].东南大学学报(自然科学版),2016,46(5):1051-1056.[doi:10.3969/j.issn.1001-0505.2016.05.026]
 Guan Dongzhi,Zhu Mingliang,Guo Zhengxing,et al.Prestressing steel tensile strip cable dome and its construction process analysis[J].Journal of Southeast University (Natural Science Edition),2016,46(5):1051-1056.[doi:10.3969/j.issn.1001-0505.2016.05.026]
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预应力条形钢拉板索穹顶及施工全过程分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第5期
页码:
1051-1056
栏目:
土木工程
出版日期:
2016-09-20

文章信息/Info

Title:
Prestressing steel tensile strip cable dome and its construction process analysis
作者:
管东芝朱明亮郭正兴罗斌陈雪琪丁明珉
东南大学土木工程学院, 南京 210096; 东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096
Author(s):
Guan Dongzhi Zhu Mingliang Guo Zhengxing Luo Bin Chen Xueqi Ding Mingmin
School of Civil Engineering, Southeast University, Nanjing 210096, China
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
钢拉板 索穹顶 非线性动力有限元 找形 全过程分析
Keywords:
tensile steel strip cable dome nonlinear dynamic finite element form finding complete process analysis
分类号:
TU393.3;TU745.2
DOI:
10.3969/j.issn.1001-0505.2016.05.026
摘要:
为了解决刚性屋面应用于常规索穹顶结构连接构造复杂的问题,提出了一种新型预应力钢拉板索穹顶结构.结合条形钢拉板的特点,基于非线性动力有限元法,提出了通过建立预分析模型确定初始形态的正施工过程分析方法.在无锡新区科技交流中心屋盖结构的基础上,设计了新型预应力钢拉板索穹顶结构模型,进行了无支架提升牵引施工全过程分析.结果表明:钢拉板索穹顶结构位形在建造过程中经历了悬垂状态、调整状态和刚化状态;提升索和牵引索的拉力在钢拉板外端点接近外支座时会有较大提高;条形钢拉板在整个施工过程中均保持弹性状态,且最终位形与索杆单元模拟的脊索位形相差不大,证明了新型预应力钢拉板索穹顶结构的可行性.
Abstract:
In order to solve the problem of the complex connecting details in rigid roofs used in conventional cable dome structures, a new prestressing steel tensile strip cable dome structure was put forward. Considering the characteristics of steel tensile strips, a positive construction process analysis method by establishing a pre-analysis model to determine the initial shape was proposed according to the nonlinear dynamic finite element method. Based on the roof structure in the Wuxi New District Science and Technology Exchange Center, a model for this new prestressing tensile steel strip cable dome was established. The construction process of non-bracket tow-lifting was analyzed. The results show that during the constructing process, the configuration of the prestressing tensile steel strip cable dome undergoes suspension state, adjustment state and stiffening state. The forces of lifting and towing cables increase significantly when the endpoints of steel strips approach outside supports. The steel tensile strips remain elastic throughout the whole construction process, and the final configuration is similar to that of the ridge cable simulated by cable or bar elements, which demonstrates that the new structure is feasible.

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备注/Memo

备注/Memo:
收稿日期: 2016-01-16.
作者简介: 管东芝(1989—),男,博士生;朱明亮(联系人),男,博士,讲师,zhumingliangseu@163.com.
基金项目: 国家自然科学基金资助项目(51308105)、中央高校基本科研业务费专项资金资助项目、江苏省普通高校研究生科研创新计划资助项目(KYLX_0149,KYLX_0152).
引用本文: 管东芝,朱明亮,郭正兴,等.预应力条形钢拉板索穹顶及施工全过程分析[J].东南大学学报(自然科学版),2016,46(5):1051-1056. DOI:10.3969/j.issn.1001-0505.2016.05.026.
更新日期/Last Update: 2016-09-20