东南大学学报（自然科学版）2012，Vol.42Issue(4)：706-712,7.DOI:10.3969/j.issn.1001-0505.2012.04.025
点支式钢化和夹胶玻璃板的循环疲劳试验研究
Fatigue tests of point-supported tempered and laminated glass panels under cyclic loading
摘要
Abstract
In order to study the mechanical properties of four-point-supported glass panel under cyclic loading, fatigue tests were carried out on 8 tempered glass panels and 15 laminated glass panels under cyclic concentrated force. The deflections and the stresses at the key points during the loading process were measured. Experiments show that the load-center deflections of point-supported tempered glass panels slightly non-linearly rise with increasing cyclic loading, and the bending stiffness of tempered glass panels does not change with the increase of cyclic number. The load-center deflection curves of the laminates under dynamic load are related to ambient temperature. There is no hysteresis loop occurs at ambient temperature below 15℃, while pronounced hysteresis loop at occurs 22 to 30℃. The load-center deflections of laminated glass panels under a constant amplitude cyclic loading grow with the increase of cycles, but the increment of deflections are reduced gradually and after 5×104 cyclic loadings these is almost no more increment of deflection. Both tempered glass and laminated glass panels after the fatigue tests show no static flexural strength reduction after 5 × 105 cyclic loadings. The results indicate that point-supported tempered glass and laminated glass panels both have good fatigue capacity.关键词
点支式/钢化玻璃板/夹胶玻璃板/循环疲劳/承载性能/试验Key words
point-supported/ tempered glass panels/ laminated glass panels/ cyclic fatigue/ carrying capacity/ testing分类
建筑与水利引用本文复制引用
舒赣平,卢瑞华,李海云,石永久,王元清..点支式钢化和夹胶玻璃板的循环疲劳试验研究[J].东南大学学报（自然科学版）,2012,42(4):706-712,7.基金项目
国家自然科学基金资助项目(50578041). （50578041）
