期刊论文

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

中文

结构工程师

1005-0159

2012

28

3

123-127

10.3969/j.issn.1005-0159.2012.03.020

本校为第一机构

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ek≤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. ...