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| 考虑界面剥离的粘贴钢板加固RC梁非线性有限元分析 | |
| 引用本文： | 王建民,王国亮,聂建国,王正收.考虑界面剥离的粘贴钢板加固RC梁非线性有限元分析[J].公路交通科技,2009,26(8). |
| 作者姓名： | 王建民 王国亮 聂建国 王正收 |
| 作者单位： | 1. 交通部公路科学研究院,北京,100088;清华大学,北京,100084 2. 交通部公路科学研究院,北京,100088 3. 清华大学,北京,100084 4. 山东省菏泽市公路管理局,山东,菏泽,274400 |
| 基金项目： | 交通部西部交通建设科技项目 |
| 摘 要： | 提出了一种能够进行外贴钢板加固钢筋混凝土梁剥离破坏分析的三维非线性有限元分析模型,该模型采用一种以粘贴钢板试件剪切试验为依据确定其剥离准则的特殊的、具有剥离破坏功能的界面单元来模拟外贴钢板和混凝土梁之间的粘贴层,界面单元的剥离破坏通过粘贴层的最大剪应力与达到剥离时的正应力的关系来确定的.用所建立的模型对外贴钢板加固试验梁的非线性全过程破坏分析结果表明:数值分析结果在实际试验梁的荷载-跨中挠度曲线、破坏时钢板的剥离性态及梁体混凝土开裂模式方面均与试验结果基本一致. |
| 关 键 词： | 桥梁工程 钢筋混凝土梁 粘贴钢板加固 剥离 非线性有限元 |
Non-linear Finite Element Analysis Model for Steel-plate Strengthened RC Beams Considering Debonding of Plate-concrete Interface |
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| WANG Jianmin,WANG Guoliang,NIE Jianguo,WANG Zhengshou.Non-linear Finite Element Analysis Model for Steel-plate Strengthened RC Beams Considering Debonding of Plate-concrete Interface[J].Journal of Highway and Transportation Research and Development,2009,26(8). | |
| Authors: | WANG Jianmin WANG Guoliang NIE Jianguo WANG Zhengshou |
| Institution: | 1.Research Institute of Highway;Ministry of Communications;Beijing 100088;China;2.Tsinghua University;Beijing 100084;3.Heze Highway Authority of Shangdong Province;Heze Shandong 274400;China |
| Abstract: | A 3D nonlinear finite element model for analyzing the debonding of plate-concrete interface of reinforced concrete beams strengthened externally with epoxy bonded steel plates were presented,It includes a special interface element to simulate the thin epoxy adhesive layer which allows for the separation failure.The interface element separation failure criterion was derived from the pure shear experiment of steel-plated specimen,and it was developed by the relationship between maximum shear and normal stress... |
| Keywords: | bridge engineering reinforced concrete beam steel-plate strengthen debonding non-linear finiteelement |
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