静力及冲击荷载下夹层玻璃的变形性能  

Deflection Behavior of Laminated Glass Under Static and Impact Load

作　　者：高轩能[1] 王书鹏[2] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021 [2]石家庄铁路职业技术学院,河北石家庄050041

出　　处：《华侨大学学报（自然科学版）》2008年第3期432-436,共5页Journal of Huaqiao University(Natural Science)

基　　金：福建省重点科技计划项目(2006H0030);厦门市科技计划项目(3502Z20073036);福建省建设科技计划项目(闽建科05-22-17);江西省教育厅科技项目(2004)

摘　　要：采用有限元法,对玻璃板厚变化的夹层玻璃在长、短期静力和冲击荷载作用下的变形性能进行模拟计算,计算结果与相关文献试验结果符合较好.进一步的计算分析表明,荷载作用类型及持续时间、支承方式和内外层玻璃板厚变化,是影响夹层玻璃整体变形性能的主要因素.夹层玻璃在爆炸荷载作用下,其弯曲刚度比静力荷载下的弯曲刚度大,框支玻璃的抗爆性能好于点支承玻璃的抗爆性能.根据模拟计算,对现行规范夹层玻璃等效厚度的计算公式进行修正,给出的夹层玻璃等效厚度计算公式适用于不同支承条件.The finite element model is used to simulate the deflection behavior of laminated glass with different thickness under short-term or long-term static load, and impact load, the calculation results conform well to the experimental data in references. Further study shows that the main factors affecting the deformation properties of laminated glass, are load type, load duration, support condition and glass ply. The flexural stiffness of laminated glass under blast load is larger than that under static load, and the performance of blast resistance of frame-supported glass is better than that of pointsupported glass. According to the simulation, the equivalent thickness formula in current code is amended. The suggested formula is applicable for different support conditions.

关 键 词：夹层玻璃 变形性能 等效厚度 冲击荷载 有限元模型 

分 类 号：TU382.02[建筑科学—结构工程]