方自虎;周海俊;赖少颖;谢强;

• 1:深圳大学土木工程学院

摘要(Abstract)：

为了考虑钢筋混凝土结构数值分析中粘结性能对模拟结果的影响,提出了一个四节点的粘结滑移单元,单元嵌入在钢筋和2D或3D混凝土单元之间,单元宽度为0,长度同钢筋单元.沿钢筋方向的粘结应力与滑移关系为单元的本构方程,垂直于钢筋方向的位移由罚函数约束.开发了基于ABAQUS软件的应用程序,程序适用于循环加载的钢筋混凝土结构并考虑了粘结强度随荷载循环次数增大而退化的情况.开发的单元成功用于分析已有的拉拔试验并且数值分析的结果与实验数据吻合良好.

关键词(KeyWords)： 混凝土结构;循环荷载;ABAQUS;数值分析;粘结滑移单元

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(编号:51378313);; 深圳市基础研究计划项目(编号:JC201005280580A、JCYJ20120614085454232)

作者(Authors): 方自虎;周海俊;赖少颖;谢强;

参考文献(References)：

• [1]Nilson A H.Internal measurement of bond slip[J].AC1Journal,1972,69(7):439-441.
• [2]Eligeliausen R,Popov E,Bertero V.Local bond stress-slip relationship of deformed bars under generalized excitations(UCBEERC-83/23)[R].University of California,1983.
• [3]Filippou F C,Popov E P,Bertero V V.Effects of bond deterioration on hysteretic behaviour of reinforced concrete joints(UCB/EERC 83-19)[R].University of California,1983.
• [4]Lykidis G C,Spiliopoulos K V.3Dsolid finite-element analysis of cyclically loaded RC structures allowing embedded reinforcement slippage[J].Journal of Structural Engineering,ASCE,2008,134(4):629-638.
• [5]Kruger M,Ozbolt J,Reinhardt H W.A discrete bond model for 3Danalysis of textile reinforced and prestressed concrete elements[J].Otto-Graf-Journal,2002,13:111-128.
• [6]Harajli M H.Bond stress-slip model for steel bars in unconfined or steel,FRC,or FRP confined concrete under cyclic loading[J].Journal of Structural Engineering,ASCE,2009,135(5):509-518.
• [7]Lowes L N.Finite element modeling of reinforced concrete beam-column bridge connections[D].California:University of California,1999.
• [8]http://docs.abaqus.com:8000/aoss-hdocs/v6.13/index.html,ABAQUS documentation[EB/OL].
• [9]Cook R D,Malkus D S,Plesha M E,et al.Concepts and Applications of Finite Element Analysis[M].3rd edition.Wiley,Canada,1989.
• [10]Filippou F C,Popov E P,Bertero V V.Effects of bond deterioration on hysteretic behavior of reinforced concrete joints(EERC 83-19)[R].University of California,1983.