作　　者： ; ; ;

机构地区： 兰州理工大学土木工程学院

出　　处： 《岩土工程学报》 2006年第11期1970-1974,共5页

摘　　要： 基于板的小挠度理论,考虑混凝土材料的非线性,推导了弹性地基上钢筋混凝土矩形薄板在热载作用下的平衡方程和稳定方程,给出了四边简支钢筋混凝土矩形薄板在均匀温度变化时临界屈曲温度变化的封闭解,讨论了板的材料常数、长宽比、相对厚度和基床系数等对临界屈曲温度变化的影响,从而为工程结构中弹性地基上钢筋混凝土矩形薄板的临界屈曲温度的计算提供了理论计算依据。 Based on the small deflection theory of plate, the physical nonlinearity of concrete were taken into consideration, and the equilibrium and stability equations of rectangular reinforced concrete plate subjected to thermal loading condition on elastic subgrade were derived. The closed form solution of the critical buckling temperature for a simply supported rectangular plate made of reinforced concrete under uniform heat variation were presented, and the influences of material constant, length-breadth ratio, relative thickness and bedding coefficient on the variation of buckling temperature were discussed. And so the theoretical basis of calculation for the critical buckling temperature of reinforced concrete rectangular plates on elastic subgrade in engineering structures was provided.

关 键 词： 钢筋混凝土 矩形薄板 弹性地基 稳定 热屈曲

领　　域： [建筑科学] [建筑科学]