摘要
本文从现象和机理方面研究承受静态均布横向荷载的PVB夹层玻璃板的力学响应,发现:一般不可忽略PVB与玻璃间传递层间剪力的影响,层间剪力是导致对称夹层结构应力不对称的根本原因。当PVB厚度较小导致层间剪力不可忽略时,不等厚结构设计一般应满足:上层板比下层板厚的要求;随着PVB厚度增加,PVB传递层间剪力减弱,层间剪力可忽略时,不等厚结构设计可放宽为:保持对称夹层结构,可交换上下层玻璃板厚度。静态横向荷载下,夹层玻璃不等厚度结构设计比等厚度设计具有明显的优势,建议应用中设计成不等厚结构。
This study investigated the mechanical responses of PVB laminated glass under the static uniformly distributed lateral load from the aspects of phenomenon and mechanism, and found out that influence of interlaminal shear force between the glass and the interlayer PVB shouldn＇t be neglected generally, which is the root cause of the asymmetry stress in the symmetric laminated structure. With the decrease of the thickness of PVB, the PVB ~s interlaminal shear force should never be neglected, the structural design of laminated glass should meet the general demands, the upper plate should be thicker than the lower one. With the thickness of the PVB increasing, the PVB ＂s interlaminal shear force decreased, therefore the role of the interlaminal shear force could be neglected. The structure design of laminated glass with different thicknesses could be allowed to keep the symmetric laminated structure and the thicknesses of the lower and upper glass could be exchanged with each other. Under the static lateral load, the structural design of laminated glass with different thicknesses of glass is of obvious advantage to that with same thicknesses, so it’s application should be recommended.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2015年第8期2113-2118,共6页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金(11372113)
关键词
夹层玻璃
层间剪力
不等厚设计
laminated glass
interlaminal shear force
different thickness design
