| 牟晓光,王清湘,司炳君.钢筋与混凝土粘结试验及有限元模拟[J].计算力学学报,2007,24(3):379~384 |
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码上扫一扫！ |
| 钢筋与混凝土粘结试验及有限元模拟 |
| Bond test between reinforcement and concrete and FEM simulation |
| 修订日期：2004-03-25 |
| DOI：10.7511/jslx20073076 |
| 中文关键词: 粘结力,荷载-滑移曲线,有限元分析,接触条件 |
| 英文关键词:bond power,load-slip curve,FEA,contact condition |
| 基金项目: |
| 牟晓光 王清湘 司炳君 |
| 大连理工大学海岸和近海工程国家重点实验室，大连理工大学海岸和近海工程国家重点实验室，大连理工大学海岸和近海工程国家重点实验室 辽宁大连116024，中交公路规划设计院有限公司，北京100010，辽宁大连116024，辽宁大连116024 |
| 摘要点击次数: 1395 |
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| 中文摘要: |
| 建立了一种按接触条件模拟钢筋与混凝土之间相互作用的模型。通过试验确定钢筋与混凝土的一些基本力学参数:粘结刚度、摩擦系数、抗剪强度、径向挤压力和软化系数;进而通过有限元模拟分析了试件的拔出过程:弹性阶段、局部开裂阶段、内部拥塞阶段以及完全脱粘阶段。计算结果与试验结果符合较好,验证了本文计算模型的合理性,解决了传统连续体理论所无法解释的现象。 |
| 英文摘要: |
| A model of simulating the interaction between the reinforcement and concrete based on contact condition has been established in this paper.Some basic mechanical parameters of the reinforcement and concrete: bond stiffness,frictional coefficient,shear strength,radial extrusion pressure and softening coefficient,are determined in the test;sequentially,four processes of the pull-out specimen: elastic phase,local cracking phase,internal congesting phase and complete debonding phase,are analyzed in the FEM simulation.The calculated results are coincident with those of test and validate the rationality of the computation model,which can solve the problem that has not been explained by traditional continuum theory. |
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