山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (4): 157-165.doi: 10.6040/j.issn.1672-3961.0.2021.561
• • 上一篇
程高1,2,3,文博华1,唐鹏1,苏巨峰1,4
CHENG Gao1,2,3, WEN Bohua1, TANG Peng1, SU Jufeng1,4
摘要: 基于薄板大挠度弯曲理论,应用Navier法推导局部均布荷载作用下玻璃桥面板挠度、应变及弯矩的计算公式。设计四边简支玻璃板试件,进行局部受压试验,得到玻璃板挠度及应变,并与理论计算结果进行对比分析研究。研究表明:局部轮压下四边简支玻璃桥面板挠度与板厚同属于毫米级,且随荷载增加呈非线性变化特征,符合薄板大挠度理论计算假定。理论计算的挠度、应变与试验吻合较好,沿各测点变化趋势一致,重三角级数形式挠曲线函数能较好地模拟玻璃桥面板弯曲行为。采用挠度、应力、应变及弯矩解析式进行局部轮压下四边简支玻璃桥面板设计计算时建议取至少13阶级数进行计算,此时计算误差可控制在3%以内。
中图分类号:
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