基于黏弹性随机有限元的框架结构响应分析

基金项目:

上海师范大学科研基金资助项目(SK200746);上海市教育委员会科研创新项目(09YZ173);上海师范大学科研基金(DZL20)资助

RESPONSE ANALYSIS OF CONCRETE FRAME STRUCTURES BASED ON VISCOLEASTIC STOCHASTIC FEM

1.
1. Architecture Engineering School,Shanghai Normal University,Shanghai 201418,China;
2.
2. Insitute of Structure Engineering and Disaster Reduction,Tongji University,Shanghai 200092,China

摘要: 基于黏弹性随机有限元,采用三参量线黏弹性模型,在空间上采用有限元法,在时域上采用离散的方法,构造了参数随机混凝土框架结构的平面有限元模型,编制了有限元程序,通过对混凝土框架的响应计算,讨论了弹性模量的随机性对结构分析的影响。算例表明,计算效率和精度较高,适用于工程计算。
- 钢筋混凝土框架 /
- 随机有限元 /
- 黏弹性 /
- 响应
Abstract: Based on the viscoelastic stochastic FEM, using FEM in space and scatter method in time, it was set up the plane finite element model of response analysis of concrete frame structures, in which a linear three-parameter viscoelastic model was adopted .The program of finite element was developed and used in analyzing the response of concrete frame structures and the creep law of concrete .The numerical results indicate that this method has high precision and efficiency, which is applicable to operation of engineering.
- RC frames /
- stochastic FEM /
- viscoelastic /
- response

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