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体外预应力简支梁受力过程非线性分析
引用本文:陈进.体外预应力简支梁受力过程非线性分析[J].贵州工业大学学报(自然科学版),2004,33(4):80-83,90.
作者姓名:陈进
作者单位:贵州省公路工程总公司,贵州,贵阳,550003
摘    要:体外预应力简支梁体系可以视为内部一次超静定的组合体系,其结构计算要考虑到梁体的刚度变化,结构受力表现为几何非线性,所以,体外预应力混凝土结构的强度计算应该是结构的极限承载力的计算,而非截面的极限抗弯强度计算。引入几何非线性与材料非线性耦合分析方法,对体外预应力试验梁进行非线性分析。

关 键 词:体外预应力  模型试验  力学分析  极限承载力
文章编号:1009-0193(2004)04-0080-04

Non-Linearity Analysis on Load Process of Exterior Pre-stressed Simple Supported Beam System
CHEN Jin.Non-Linearity Analysis on Load Process of Exterior Pre-stressed Simple Supported Beam System[J].Journal of Guizhou University of Technology(Natural Science Edition),2004,33(4):80-83,90.
Authors:CHEN Jin
Abstract:External prestressed simple supported beam system is regarded as an inner hyperstatic composlte,in which stiffness variation of beam body is considered in the structural calculation.Structural load represents as geometrical non-linearity.It is therefore that the strength calculation of outside pre-stressed concrete structure should be ultimate bearing capacity calculation,but not the non-sectional ultimate bend resistance calculation.This article introduces the coupling analysis method of geometric non-linearity and material non-linearity in order to do the non-linearity analysis for outside pre-stressed testing beam.
Keywords:external prestressing  model test  mechanical analysis  ultimate bearing capacity
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