基于相互作用原理的柱脚底板受力分析  

FORCE ANALYSIS OF STEEL COLUMN BASE PLATE BASED ON THE INTERACTION PRINCIPLE

作　　者：孙浩[1] 朱德滨[1] 

机构地区：[1]西南林业大学土木工程学院,昆明650224

出　　处：《钢结构》2013年第12期31-35,共5页Steel Construction

基　　金：云南省重点攻关项目(2004NG05)

摘　　要：应用ANSYS 10.0对承受轴心压力下的钢柱脚底板进行受力分析。首先对比了传统的设计假设和考虑底板与基础相互作用两种模型之间的应力分布差异。然后将钢柱、底板、基础看做一个整体,分析影响底板和基础表面应力分布的因素,得出不同工况下的应力变化规律。结果表明:考虑底板与基础之间相互作用得出的计算结果与传统计算假设得出的计算结果有较大差距,箱型柱截面的长宽比对基础表面的压应力分布有一定影响。基础混凝土强度等级的变化对底板和基础表面的应力分布影响较大。It was analysed the force of the column base plate under axial pressure with ANSYS 10.0 software. First, the comparative analysis between the traditional model and interaction model was made. Second, by treating the steel column, sole plate and concrete base as an entirety, the factors which affect the stress distribution of sole plate and foundation surface were analyzed; the stress change law at the different working condition was also got. Result shows that there is a big gap on the result between the traditional model and interaction model. The length width ratio of box column section has a certain effect on the stress distribution of foundation surface. The change of concrete strength has a big effect on the stress distribution of sole plate and foundation surface.

关 键 词：箱型钢柱 柱脚底板 相互作用 非线性分析 

分 类 号：TU375.3[建筑科学—结构工程] TU470.3