ANALYSIS ON THE TEMPERTURATURE FIELDS AND THERMAL STRESSES OF LAMINATED GLASS UNIT OF GLASS CURTAIN WALL
The adoption of energy-saving measures makes great achievements in reducing the energy consumption of buildings. However, these measures also result in the great change in the temperature fields inside and outside the structure, especially to the glass curtain wall, whose coefficient of heat conductivity is relatively high. Chinese standards do not clearly provide the methods calculating the thermal stress, while European standards simplify the calculating by assuming that the temperature distributions are uniform among the glass unite. This article analyzes the temperature distributions of laminated glass unit under actual environment and the thermal stresses based on the thermal fields. Furthermore, related factors such as stiffness ratio of the two glasses, the initial temperature of the glass unit and the boundary conditions are fully discussed with the help of finite element methods. The results show that the latter two factors have much more influence than the initial thermal condition on the thermal stress of laminated glass unit. Finally, some useful suggestions based on the finite element analysis are put forward which it may be useful during the glass curtain design.
laminated glass unit temperature gradient thermal stress initial conditions
Yong-Jiu Shi Wei Sun Yuan-Qing Wang Yi Luo Yue Xu
The Institute of Glass and Metal Structure for Architecture, Key Laboratory of Structural Engineerin The Institute of Glass and Metal Structure for Architecture, Key Laboratory of Structural Engineerin King Glass Engineering Ltd., Zhuhai 519015, P.R. China
国际会议
广州
英文
1639-1643
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）