四边支承贴膜玻璃受弯承载性能分析.pdf

第31卷第4期
山东建筑大学学报
Vol 31 No 4
2016年8月
JOURNAL OF SHANDONG JANZHU UNIVERSITY
2016
文章编号:1673-7644(2016)04-0350-08
四边支承财膜玻璃受弯承载性能分析
万成龙3,卢佳2,孙诗兵'”,王洪涛3
北京工业大学材料科学与工程学院,北京100124;2.3M中国有限公司,北京10000;3.中国建筑科学研究
院,北京10003)
摘要:贴膜是防止非安全玻璃或钢化玻璃破裂后瞬时脱落的手段之一,为及时安全隔离并为维修提供时间,贴
膜玻璃受弯承载性能研究对于贴膜玻璃的工程应用具有重要指导意义。文章基于有限元模拟计算和抗风压试
验测试分析对四边支承贴膜玻璃受弯承载性能进行了分析。结果表明:膜层厚度不同时,玻璃贴膜前后挠度减
小不明显,而贴膜后玻璃第一主应力减小约50%;在1、2、3和4kPa均布风荷载作用下,挠度随着荷载值增加
近似成线性变化,贴膜面正压挠度变形比负压挠度变形略大;挠度与均布荷载值呈近似线性趋势,随着均布荷
载值增加,挠度测试值呈“先大于计算值,后小于计算值”的趋势,说明了模拟计算结果更为保守,修正后的模拟
值与测试值更为接近。
关词:四边支承;贴膜玻璃;受弯承载
中留分类号:TU524
文献标识码:A
Analysis of flexural bearing performance of filmed glass supported
on four sides
Wan Chenglong", Lu Jia,Sun Shibing", et al
(1. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China; 2. 3M
China Ltd. Co., Beijing 100004, China 3. China Academy of Building Research, Beijing 100013, China
Abstract The film is one of the methods to prevent non-safety glass or toughened glass instantaneous
shedding after being broken off, which can provide enough time for security isolation measures and
maintenance. Flexural performance research of filmed glass has an important guiding significance for
the engineering application. Deformation along*axis direction and the first principal stress value of
glass and filmed glass under 1, 2, 3, 4 and 5 kpa uniformly distributed load are studied based on
finite element simulation method. The results show that z axial deformation is not obvious for glass and
filmed glass with different thickness film layer and first principal stress is reduced by about 50% after
being filmed. z axis deformation with load change is approximately a linear change under 1, 2, 3 and
4 kpa, and deflection deformation of filmed glass under positive pressure is slightly larger than that o
negative pressure. Comparisons of simulation and test show that z axis deformation is approximately a
linear trend with uniformly distrbuted load value, and test values of z axis deformation are higher than
those of the calculated and then less than the calculated with uniformly distributed load increasing
indicating that the simulation results are more conservative and the modified simulation values are
收稿日期:2016-05-07
基金项目:北京市科技计划课题项目(Z14110004054)
作者简介:万成龙(1983-),男,工程师,硬土,主要从事透明围护结构等方面的研究.wan_ chenglong(@163.con
通讯作者”:孙诗兵(1963-),男,高级工程师,博士,主要从事建筑围护结构节能材料与技术等方面的研究.E-mail:sunshibing@biut.edu.cn