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| 混凝土结构徐变效应的仿真分析方法探讨 | |
| 引用本文： | 徐镇凯,余翠英,李北虹,尹晓红.混凝土结构徐变效应的仿真分析方法探讨[J].南昌大学学报(工科版),2006,28(3):299-302. |
| 作者姓名： | 徐镇凯 余翠英 李北虹 尹晓红 |
| 作者单位： | 1. 南昌大学,建筑工程学院,江西,南昌,330029 2. 中铁二十四局南昌公司,江西,南昌,330002 3. 南昌铁路勘测设计院,江西,南昌,330002 |
| 摘 要： | 混凝土的徐变包括低应力水平下的近似线性徐变和高应力水平下的非线性徐变.在低应力水平下,混凝土的徐变与加载应力为近似线性关系,可以应用线性本构模型;在高应力水平下,混凝土的徐变与加载应力表现为明显的非线性关系,线性本构模型不再适用.本文分析探讨了混凝土徐变的非线性本构模型,并以ANSYS有限元软件为开发平台,开发了混凝土结构徐变效应的仿真分析程序,程序仿真模拟了混凝土结构徐变的依时性.文中给出了混凝土重力坝徐变效应分析的仿真分析算例. |
| 关 键 词： | 混凝土结构 徐变 非线性 有限元 |
| 文章编号： | 1006-0456（2006）03-0299-04 |
| 收稿时间： | 2005-12-12 |
| 修稿时间： | 2005年12月12 |
Discussion of Imitation Analysis Method of Concrete Creep Effect |
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| XU Zhen-kai,YU Cui-ying,LI Bei-hong,YIN Xiao-hong.Discussion of Imitation Analysis Method of Concrete Creep Effect[J].Journal of Nanchang University(Engineering & Technology Edition),2006,28(3):299-302. | |
| Authors: | XU Zhen-kai YU Cui-ying LI Bei-hong YIN Xiao-hong |
| Affiliation: | 1. School of Architecture Engineering, Nanchang University, Nanchang 330029, China; 2. Nanchang Railway Engineering (Group |
| Abstract: | Creep of concrete consists of approximate linear creep at the level of low stress and nonlinear creep at the level of high stress.However,at the lever of low stress,the linear constitutive model of concrete can be a pplied,but at the level of high stress,the linear constitutive model of concre te cannot be adopted for its nonlinear characteristic.The nonlinear constitutiv e model of concrete creep analysis is discussed.On the platform of ANSYS finite element software,the program is developed,which can calculate and imitate the process of the creep stress & strain by the time.An example of imitation analy zing creep effect of concrete gravity dam is given in the paper. |
| Keywords: | concrete structure creep nonlinear finite element |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
