碳纤维布加固混凝土结构有限元分析

Finite Element Analysis of Concrete Structures Strengthened with Carbon Fiber Sheet

用碳纤维布 (CFRP)加固混凝土结构后 ,应力发生了重分布 ,存在二次受力问题 ,国内外很多的学者对其进行了大量的研究。总结了这些方法 ,分析了它们各自的优劣。在此基础上 ,提出了一种新的研究方法 ,就是基于大型通用商业有限元软件Ansys上进行二次开发。通过加入相应的新单元、本构关系、破坏准则等。

Stress redistributes after the concrete structures strenthened with carbon fiber reinforced polymer sheet. It is a question of secondary loading.Many scholars have studied it and got a lot of achievements.This paper summarizes the methods and analyzes their advantage and shortcoming. Based on it, a new method is proposed.The method is developing in large-scale general software-Ansys by using adding new elements, constitutive relationship, failure criterion,and so on.The calculation formula agrees with the experimental data.