用弯矩迭代法计算高层钢框架P-Δ效应  

P-Δ Effect Computations in Highrise Steel Frame Structure by the Moment-Iteration Method

作　　者：陆铁坚[1] 蒋友良[1] 余志武[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《长沙铁道学院学报》2003年第4期12-16,共5页Journal of Changsha Railway University

基　　金：国家自然科学基金资助项目(50208018)

摘　　要：以结构力学中弯矩迭代法为基础,推导了考虑P-Δ效应的弯矩迭代公式.将弯矩迭代法用于P-Δ效应分析.算例表明,该方法简便实用,精度可靠,既可用于手算,也可编制计算程序用于电算.Based on the moment-iteration method of structural mechanics,this paper gives the moment-iteration formula of considering P-Δ effect.The moment-iteration method is first applied to the analysis of P-Δeffect.An example shows that the proposed method is simple,practical and reliable in precision.This method is not only used for manual calculation,but also for planning computer program for computer calculation.

关 键 词：P-△效应 转角位移方程 分配系数 钢框架 

分 类 号：TU973.13[建筑科学—结构工程]