Influence of a Stiffening Cable Net on Performance of Large-Span Air-Supported Membrane Structures

被引：0
|
作者：
Sun G. [1 ,2 ]
Wu M. [2 ]
He Y. [1 ,2 ]
Xue S. [1 ,2 ]
Zhan P. [2 ]
机构：
[1] The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing
[2] Architectural and Civil Engineering Institute, Beijing University of Technology, Beijing
来源：
Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology | 2019年 / 52卷
关键词：
Air-supported membrane; CFD numerical simulation; Finite element simulation; Stiffening cable net; Wind vibration coefficient;
D O I：
10.11784/tdxbz201904089
中图分类号：
学科分类号：
摘要：
The air-supported membrane has such properties as lightness, flexibility, and strong geometric nonlinearity, which will be significantly affected by arrangements of stiffening cable nets.However, large-span air-supported membranes have seldom been reported.Meanwhile, the existing "CECS 158-2015 Technical Specification for Membrane Structure" does not specify the wind vibration coefficient of the air-supported membrane.Two large-span air-supported membrane models, with and without stiffening cable nets, were established to analyze their differences in stress and displacement under internal pressure and gravity.Taking 0° wind angle as example, the wind pressure coefficient was obtained by using CFD technology and applied to two types of air-supported membrane models for comparison.The Full method was used to analyze time-history response of wind-induced vibration and the wind vibration coefficients were calculated.The results show that cable nets have minor influence on find-forming analysis.Meanwhile, under internal pressure and gravity, the variation trend of the displacement of air-supported membrane structure is similar with that of the stress of membrane with or without cable nets.However, under the static wind load, the maximum displacement of air-supported membrane structure with cable nets decreased 57.3% relatively, and the maximum stress of membrane decreased 25% relatively.The depression displacement on the windward side of air-supported membrane structure with cable nets decreased obviously.However, the cable nets have little influence on the wind vibration coefficient of air-supported membrane structure, and the wind vibration coefficient of this air-supported membrane structure is suggested to be 1.3. © 2019, Editorial Board of Journal of Tianjin University(Science and Technology). All right reserved.
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页码：54 / 59
页数：5
相关论文
共 15 条
  • [1] CECS 158-2015 Technical Specification for Membrane Structures, (2015)
  • [2] Qin Q., Shen S., Gong J., Deflation behavior and related safety assessment of an air-supported membrane structure, Thin-Walled Structures, 129, pp. 225-236, (2018)
  • [3] Qing Q., Gong J., Li Z., Simplified calculation method for deflation of an air-supported membrane structure under emergency evacuation conditions, Building Structure, 43, 22, pp. 96-99, (2013)
  • [4] Zhang Y., Yuan X., Xu X., Analysis of bagging effect in air-supported membrane structures with initial imperfections under intensive rainfall, Spatial Structures, 24, 4, (2018)
  • [5] Yi S., Zeng B., Study on the fire temperature field characteristics of inflatable membrane structure, Fire Science and Technology, 35, 11, pp. 1507-1510, (2016)
  • [6] Yi S., Zeng B., Fire smoke movement characteristics of inflatable membrane structure, Fire Science and Technology, 35, 4, pp. 476-480, (2016)
  • [7] Ran W., Jiang G., Wang F., Study on wind load and wind environment of the air-supported membrane structures using LK k-ε model, Building Structure, 48, pp. 1012-1017, (2018)
  • [8] Sheng Y., Wang Z., Peng C., Temperature field distribution characteristics of half cylinder pneumatic membrane structure under different fire scenarios, Structural Engineers, 30, 5, pp. 68-75, (2014)
  • [9] Sheng Y., Wang Z., Peng C., Et al., Fire temperature fields and smoke distribution of rectangular plane air-supported membrane structures, Industrial Construction, 44, 9, pp. 78-82, (2014)
  • [10] Shen Y., Zhao D., Wang Q., On wind pressure coefficient distribution of air-supported structures considering fluid-structure coupling, Chinese Journal of Computational Mechanics, 34, 5, pp. 665-671, (2017)
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