钢筋混凝土超静定连续梁非线性全过程分析中的力迭代法  

Force-iteration method for nonlinear overall-process analysis of indeterminate static continuous reinforced concrete beam

作　　者：何政[1] 欧进萍[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《哈尔滨建筑大学学报》2001年第6期21-25,共5页Journal of Harbin University of Civil Engineering and Architecture

基　　金：~~

摘　　要：针对将力法应用于钢筋混凝土结构非线性分析时出现的问题,提出了一种新的求解钢筋混凝土超静定连续梁非线性全过程反应的方法———力迭代法,此法采用非线性分析中的纤维模型,直接从迭代求解支座反力入手来求得结构任意截面的内力和变形,而不必沿用有限元方法。此法概念清晰,能较为容易地定量刻画超静定连续梁中内力重分布效应。文中给出了相应的实施步聚,并采用Matlab语言编制了程序。最后,对一两跨连续梁进行了非线性全过程分析。A force-iteration method was put forward to perform the nonlinear whole-process analysis of indeterminate static continuous reinforced concrete beams. By adopting a fiber model in the nonlinear analysis, the method can be used directly to obtain the distribution of internal forces and the deformation at any section of the structure without following the finite element method. Its clarity makes it easy to quantify the redistribution effect of an indeterminate static continuous beam. With the corresponding implement procedure and a Matlab program, the nonlinear whole-process analysis of a two-span continuous beam is carried out.

关 键 词：力迭代法 钢筋混凝土 超静定连续梁 非线性 纤维模型 内力重分布 

分 类 号：TU375.1[建筑科学—结构工程]