摘要
钢筋与混凝土间的粘结本构关系是混凝土结构弹塑性有限元分析的基础之一。针对这一基本问题,本文提出了通过数值模拟方法研究粘结本构关系的思路。采用不连续介质力学问题的界面元法,编制了三维问题的界面元分析程序,用以对混凝土结构中钢筋与混凝土界面的粘结性能进行细观力学分析。通过对两类测量粘结应力以及滑移的典型试件(单端拉拔试件和两端对拉试件)的分析,表明计算结果与试验结果吻合良好。
Bond constitutive relation between steel bar and concrete is one of the bases for nonlinear analysis of concrete structures. In this paper, a numerical simulation method is put forward to calculate bond constitutive relation. Interface element analysis was used to compile a three dimensional program. This program can be used to analyze single-end pullout test and double-end pullout test. The strain of steel, the slip between steel and concrete and the bond stress can be obtained. The results are compared with experimental data and good agreement is obtained.
出处
《计算力学学报》
EI
CAS
CSCD
北大核心
2005年第1期73-77,共5页
Chinese Journal of Computational Mechanics
基金
上海市重点学科建设资助项目.
关键词
钢筋
混凝土
粘结本构
界面元
数值模拟
reinforcement
concrete
bond constitutive relation
interface element
numerical simulation
