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| 纵向非均匀锈蚀钢筋拉拔过程的有限元分析 | |
| 引用本文： | 宋锦虎,贺瑞霞,马欢.纵向非均匀锈蚀钢筋拉拔过程的有限元分析[J].四川建筑科学研究,2011,37(1):70-74. |
| 作者姓名： | 宋锦虎 贺瑞霞 马欢 |
| 作者单位： | 1. 河南城建学院,河南,平顶山,467044;东南大学交通学院,江苏,南京,210096 2. 河南城建学院,河南,平顶山,467044 3. 中国矿业大学,江苏,徐州,221008 |
| 摘 要： | 混凝土中的钢筋锈蚀问题日益突出,针对非均匀锈蚀混凝土构件的试验研究,从粘结本构关系入手,对锈蚀钢筋构件结构性能退化和破坏特征进行数值计算分析。混凝土和钢筋均采用8节点实体单元建模;钢筋与混凝土之间的粘结单元采用非线性弹簧单元Combine 39,同时,实常数赋值考虑位置函数影响,从而建立了纵向非均匀锈蚀钢筋构件的计算模型。通过计算获得了非均匀锈蚀钢筋拉拔位移与拉拔力之间关系,拉拔过程中混凝土应力变化和破坏发展过程,以及锈蚀钢筋与混凝土之间粘结应力的演化规律。 |
| 关 键 词： | 锈蚀钢筋 非均匀 拉拔过程 有限元分析 ANSYS |
Finite element analysis of pull-out tests on longitudinally and non-uniformly corroded steel bar |
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| SONG Jinhu,HE Ruixia,MA Huan.Finite element analysis of pull-out tests on longitudinally and non-uniformly corroded steel bar[J].Building Science Research of Sichuan,2011,37(1):70-74. | |
| Authors: | SONG Jinhu HE Ruixia MA Huan |
| Affiliation: | SONG Jinhu1,2,HE Ruixia1,MA Huan3(1.Henan University of Urban Construction,Pingdingshan 467044,China,2.School of Transportation,Southeast University,Nanjing 210096,3.China University of Mining and Technology,Xuzhou 221008,China) |
| Abstract: | Corrosion of steel bar imbedded in concrete stands out increasingly,and on the basis of the test on the non-uniformly corroded beams and the constitutive relationship of the corroded reinforced concret,the finite element analysis of their structural performance deterioration and destructive characters were carried out.The model of concrete and steel bar were all established by eight-node solid element.The nonlinear spring element Combine 39 was used as the bonding element between the steel bars and concrete... |
| Keywords: | ANSYS |
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