任意单向偏心矩形扩展基础底面尺寸的直接精确解法  

Direct Accurate Solution of Bottom Size for One-Way Eccentric Rectangular Extended Foundation

作　　者：黄太华[1] 周先雁[1] 谭萍 

机构地区：[1]中南林业科技大学土木工程与力学学院,长沙410004 [2]株洲市规划设计院,株洲412007

出　　处：《结构工程师》2012年第3期123-127,共5页Structural Engineers

摘　　要：为了确定柱下矩形扩展基础的底面积,必须进行地基承载力的验算;教学时一般采用试算确定基础的底面积,试算的次数依经验而定;对于P≤b/6的情况,很多文章提出了直接求解一元三次方程的手算方法。本文提出一种不需反复试算的直接精确解法,不论偏心距的大小均可直接求得精确解,并以MATLAB为平台编制了程序便于学生和设计人员使用。To determine the bottom area of the rectangle expand foundation of columns, the carrying capacity of the ground must be verifyed by caeulation. Trial-calculation is usually adopted to determine the foundation bottom area in teaching and the times of the trial-calculation depends on experiences. At the situation of ek ≤ b/6 , a lot of papers provide a hand method to solve cubic equation directly. A direct accurate solution without many trial-calculation is put forward to solve this problerm, no matter the degree of eccentricity of columns. And it is compiled to routine for students and designers with MATLAB.

关 键 词：单向偏心 矩形扩展基础 基础 直接精确解 

分 类 号：TU470[建筑科学—结构工程]