Liu X.-G.,China Building Material Academy C and T Central |
Bao Y.-W.,China Building Material Academy C and T Central |
Wan D.-T.,China Building Material Academy C and T Central |
Qiu Y.,China Building Material Academy C and T Central |
And 2 more authors.
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | Year: 2011
The strength behavior of the vacuum glazing and influencing factors were investigated by using uniform load test on the glass plate. Based on the test results and stresses distribution characteristics in vacuum glazing, and considering the influence of the additional supporting stress, the calculation formula of resistance to wind load and strength design factors of the glass under preexisting tension stress function were given. The results show that the deformation of the outer and inner panel of the vacuum glass is identical, and the load distribution on the two glass panels are proportional to the stiffness of the glass panel. For a given total thickness of the two glass panels, the strength reaches the highest when both glass panels have the identical thickness. The capacity of resisting wind load of the vacuum glazing is the same as a common glass whose thickness is about 85% of the total thickness of the vacuum glazing. The preexisting tension stress in the outer-side surface of the vacuum glazing, which affects the strength of the vacuum glazing, should be taken into account in strength design. The maximum stress in the vacuum glazing is at the centre of the glass plate under uniform load.