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J4  2011, Vol. 45 Issue (7): 1281-1287    DOI: 10.3785/j.issn.1008-973X.2011.07.024
土木与建筑工程     
TH-Levy型索穹顶局部构件失效时的受力性能
许国杰1,卓新1,寿全根2,裘黎明2,樊烽3
1. 浙江大学 建筑工程学院,浙江 杭州 310058;2. 浙江展诚建设集团有限公司,浙江 杭州 310005;
3. 浙江理工大学 科技与艺术学院,浙江 杭州 310018
Structural performance of TH-Levy cable dome when
local component failure
XU Guo-jie1,ZHUO Xin1,SHOU Quan-gen2,QIU Li-ming2,FAN Feng3
1.College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China; 2.Zhejiang Zhancheng
Construction Group,Hangzhou 310005,China; 3. Keyi College, Zhejiang SciTech University, Hangzhou 310018, China
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摘要:

对存在脊索、斜索、环索或撑杆等局部构件失效时的新型TH-Levy索穹顶和传统型Levy索穹顶进行受力性能研究.采用非线性有限元法对在满跨荷载和半跨荷载作用下2种类型结构的静力性能进行对比分析,采用Block Lanczos法对2种类型结构的动力性能进行对比分析.分析结果表明,新型索穹顶的上环索在控制结构内力分布的均匀性和减小结构变形上起着重要作用. 当单根脊索失效时,新型索穹顶在设计荷载作用下能够保持较好的受力性能,传统型索穹顶完全失去承载能力;当单根斜索失效时,新型索穹顶的受力性能略优于传统索穹顶,二者在设计荷载作用下均能保持较好的受力性能;当单根环索或撑杆失效时,新型索穹顶未失效的部分结构仍然具有承载能力,可以避免完全坍塌,传统索穹顶完全丧失承载能力;新型索穹顶完整结构的各阶自振频率大于传统型索穹顶,单根脊索或斜索失效时的各阶自振频率下降幅度均小于传统型索穹顶,表明新型索穹顶的动力性能和结构刚度优于传统型索穹顶.

Abstract:

The structural performances of the new TH-Levy cable dome and the traditional Levy cable dome were analyzed when some components of ridge cable, diagonal cable, hoop cable or strut failed to work. The nonlinear finite element method was used to analyze the static performance of the two structures under fullspan load and half-span load. The Block Lanczos method was used to analyze the dynamic performance of the two structures. The analysis results showed that the upper hoop cables of the new cable dome can decrease structural deformations and component's internal forces when some components failed to work. Respectively, the new cable dome kept good static performance under design load, but the traditional cable dome completely lost structural bearing capacity when one ridge cable failed to work. The new cable dome was slightly better than the traditional cable dome in mechanical performance under design load when one diagonal cable failed to work. The new cable dome can retain parts of the structures to avoid collapse, but the traditional cable dome completely lost bearing capacity when one bottom hoop cable or strut failed to work. The natural frequencies of the new cable dome were greater than those of the traditional cable dome. Decreases of the natural frequencies of the new cable dome were less than those of the traditional cable dome when one ridge cable or diagonal cable failed to work. Results show that the dynamic performance of the new cable dome is better than that of the traditional cable dome.

出版日期: 2011-07-01
:  TU 393.3  
基金资助:

国家自然科学基金资助项目(50678157);浙江大学浙江展诚建设集团现代施工技术中心资助项目.

通讯作者: 卓新, 男, 副教授.     E-mail: zhuoxin@zju.edu.cn
作者简介: 许国杰(1986-),男, 硕士生,从事空间结构力学分析和施工技术研究. E-mail: tmgcxgj04@126.com
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引用本文:

许国杰,卓新,寿全根,裘黎明,樊烽. TH-Levy型索穹顶局部构件失效时的受力性能[J]. J4, 2011, 45(7): 1281-1287.

XU Guo-jie,ZHUO Xin,SHOU Quan-gen,QIU Li-ming,FAN Feng. Structural performance of TH-Levy cable dome when
local component failure. J4, 2011, 45(7): 1281-1287.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.07.024        https://www.zjujournals.com/eng/CN/Y2011/V45/I7/1281

[1] FULLER R B. Tensileintegrity structures: U.S., 3063521 [P]. 1962-11-13.
[2] LEVY M P. The Georgia dome and beyond achieving light weigh long span structures [C]∥Proceedings of IASSASCE International Symposium. Atlanta: IASS, 1994: 560-562.
[3] 董石麟,袁行飞.索穹顶结构体系若干问题研究新进展[J].浙江大学学报:工学版,2008,42(1): 1-7.
DONG Shilin, YUAN Xingfei. Advances in research on cable domes [J]. Journal of Zhejiang University: Engineering Science, 2008, 42(1): 1-7.
[4] 卓新, 王苗夫, 董石麟.逐层双环葵花型索穹顶结构与施工成形方法: 中国, 200910102206.4 [P]. 2010-02-17.
ZHUO Xin, WANG Miaofu, DONG Shilin. A Levy cable dome with doublehoop in each layer and construction method: China, 200910102206.4 [P]. 2010-02-17.
[5] 卓新, 王苗夫, 董石麟. 逐层双环肋环型索穹顶结构与施工成形方法: 中国, 200910153530.9 [P]. 2010-04-07.
ZHUO Xin, WANG Miaofu, DONG Shilin. A Geiger cable dome with doublehoop in each layer and construction method: China, 2009101535309 [P]. 2010-04-07.
[6] 杨帆. 葵花型逐层双环索穹顶力学性能研究及施工过程分析[D]. 杭州:浙江大学,2010.
YANG Fan. Research on mechanical properties and construction process of sunflowertype cable dome with two loops in each layer [D]. Hangzhou: Zhejiang University, 2010.
[7] 郭佳民,董石麟,袁行飞,等. 索穹顶结构施工模拟分析[J].浙江大学学报:工学版,2009,43(10): 1892-1896.
GUO Jiamin, DONG Shilin, YUAN Xingfei, et al. Simulation analysis of cable dome construction process [J]. Journal of Zhejiang University: Engineering Science, 2009, 43(10): 1892-1896.
[8] 袁行飞,董石麟.索穹顶结构有限元分析及试验研究[J].浙江大学学报:工学版,2004, 38(4): 586-592.
YUAN Xingfei, DONG Shilin. Finite element analysis and experimental research on cable domes [J]. Journal of Zhejiang University: Engineering Science, 2004, 38(4): 586-592.
[9] 张丽梅,陈务军,董石麒.基于线性调整理论分析的Levy型索穹顶体系初始预应力及结构特性[J].上海交通大学学报,2008,42(6): 979-984.
ZHANG Limei, CHEN Wujun, DONG Shilin. Analysis of initial prestress and structural performance s for Levy cable dome based on linear adjustment theory [J]. Journal of Shanghai Jiaotong University, 2008, 42(6): 979-984.
[10] 郑君华,袁行飞,董石麟.两种体系索穹顶结构的破坏形式及其受力性能研究[J].工程力学,2007,24(1):44-50.
ZHENG Junhua, YUAN Xingfei, DONG Shilin. Failure mode and behavior analysis of two types of cable domes [J]. Engineering Mechanics, 2007, 24(1): 44-50.
[11] 吕超力.Levy型索穹顶的敏感性分析及结构改进[D]. 杭州:浙江大学,2008.
LV Chaoli. The sensitive analysis and structure improvement of Levy dome [D]. Hangzhou: Zhejiang University, 2008.
[12] 高博青,谢忠良,梁佶,等.拉索对肋环型索穹顶结构的敏感性分析[J].浙江大学学报:工学版,2005,39(11):1685-1689.
GAO Boqing, XIE Zhongliang, LIANG Ji, et al. Sensitivity analysis of cables to Geiger dome structure [J]. Journal of Zhejiang University: Engineering Science, 2005, 39(11): 1685-1689.
[13] 阚远,叶继红.索穹顶结构在静力荷载作用下的失效分析[J]. 特种结构, 2007, 24(3): 85-88.
KAN Yuan, YE Jihong. Failure analysis of cable domes subjected to static loads [J]. Special Structures, 2007, 24(3): 85-88.
[14] 罗尧治,王荣.索穹顶结构动力特性及多维多点抗震性能研究[J].浙江大学学报:工学版,2005,3(1): 39-45.
LUO Yaozhi, WANG Rong. Study on dynamic characteristics and behavior of cable dome subjected to multidimensional and multipoint seismic excitations [J]. Journal of Zhejiang University: Engineering Science, 2005, 3(1): 39-45.

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