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TEST RESEARCH AND FINITE ELEMENT ANALYSIS OF STEEL BEAM SPLICING JOINT STRENGTHENED BY CFRP
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摘要: 通过碳纤维布加固钢梁高强螺栓拼接节点的静载试验,考察了影响加固效果的主要因素和钢梁的破坏形态。运用ANSYS有限元分析软件,建立考虑接触摩擦与预紧力的钢梁螺栓拼接节点有限元分析模型,并进行数值模拟,分析碳纤维布加固的螺栓节点对钢梁的屈服荷载和刚度的影响。有限元分析结果和试验结果均表明加固措施的有效性。Abstract: Based on static experimental research, the major factors that influence strengthening effect and the destroyed mode of the steel beam bolt splicing joint strengthened by CFRP are observed. The numerical modeling has been done by the bolt splicing joint finite element analysis model considering the contact friction and the pretightening force. The contribution to the yield load and rigidity by the bolt joint strengthened by CFRP has been analyzed. The finite element analysis result and the test result show that the strengthening method is effective.
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Key words:
- CFRP sheets /
- strengthen /
- finite element method /
- steel beam joint
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郑 云, 叶列平, 岳清瑞. FRP 加固钢结构的研究进展. 工业建筑,2005, 35(8) : 20-25, 34 [2] 彭福明, 郝际平, 岳清瑞, 等. 碳纤维增强复合材料(CFRP) 加固修复损伤钢结构. 工业建筑, 2003, 33(9) : 7-10 [3] 马建勋, 宋松林, 赖志生, 等. 粘贴碳纤维布加固钢构件受拉承载力试验研究. 工业建筑, 2003, 33(2) : 1-4 [4] 张 宁, 岳清瑞, 杨勇新, 等. 碳纤维布加固钢结构疲劳试验研究.工业建筑, 2004, 34(4) : 19-21 [5] 岳清瑞, 彭福明, 杨勇新, 等. 碳纤维布加固钢结构有效粘接长度的试验研究. 工业建筑, 2004, 34(增刊) : 321-324 -
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