摘要
面内受弯玻璃板的最大应力点通常出现在相对薄弱的边缘处,当缺少足够的侧向支承时,会发生整体失稳而破坏。该文在面内受弯玻璃板极限承载试验基础上,分析了这种构件的破坏过程,分析了跨高比对面内受弯玻璃板静力承载性能的影响和玻璃板的稳定问题,得到了结构的屈曲后荷载位移曲线。结果表明,面内受弯玻璃板会发生极值点失稳,其破坏由屈曲荷载控制,屈曲荷载的大小随着玻璃板高跨比的增加而呈线性增大。计算所得屈曲荷载小于试验测值。该结果为考虑稳定问题的面内受弯玻璃板极限承载力设计提供了依据。
The maximum stress for in-plane bending of a glass plate usually appears around the verge area, with the glass plates losing their resistance to flipping over when the supports are inadequates. The stress response to bending loads was investigated experimentally with analyses of the buckling due to in-plane bending of glass plates to obtain the load-displacement curve after buckling. The results show that extreme-point buckling occurs with in-plane bending and dominates the plate＇s failure. The buckling load is approximately linearly relates to the height-span ratio of the plate. The buckling load calculated by finite element solution is less than the experimental measurements. These results provide evidence for the design of buckling loads due to in-plane bending of glass plates.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第6期773-776,共4页
Journal of Tsinghua University(Science and Technology)
关键词
玻璃结构
面内受弯
承载性能
屈曲荷载
glass structure
in-plane bending
load bearing properties
buckling loads
