圆形均布荷载下地基附加应力计算简化模型  

The Simplified Model of Additional Stress of Foundation Under Circular Uniformly Distributed Load

作　　者：周家羽 尚祖峰 胡耀宗[1] 何钰龙[1] 

机构地区：[1]东北林业大学土木工程学院,黑龙江哈尔滨150040

出　　处：《兰州工业学院学报》2014年第6期44-47,共4页Journal of Lanzhou Institute of Technology

摘　　要：为研究圆形均布荷载下地基附加应力的等代变换模型,对一半径为1的圆形均布荷载进行分析,通过弹性力学理论得到其地基附加应力的计算公式,并以等效面积原则,采用不同长宽比的矩形均布荷载进行替换,设定2个工况点,通过比较等代后的矩形荷载与圆形荷载在不同深度土体的附加应力系数,可以得到使用矩形均布荷载作为圆形均布荷载的简化模型是可行的,且长宽比1.0的矩形荷载等代模型最接近原模型.In order to research the equivalent transformation model of additional stress of foundation under circular uniformly distributed load, a radius with 1 circular uniform load is analyzed using theory of elastic mechanics to get formula of additional foundation stress. Based on the principle of equivalent area, using different ratio of length to width of rectangular uniform load, after comparison different additional stress coefficient of rectangular and circular load in varied depth, we can conclude that simplified model of rectangular and circular is feasible, and ratio of length to width with 1.0 is the closest approximation to original model.

关 键 词：圆形均布荷载 地基附加应力 角点法 

分 类 号：TU470[建筑科学—结构工程]