建筑结构

2012, v.42;No.338(02) 170-172+175

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巴掌榫和抄手榫维修圆木柱的试验研究
Experimental study of circular wood column repairing with tenon and mortise joint

许清风;
Xu Qingfeng1,2(1 Shanghai Key Laboratory of New Technology Research on Engineering Structure,Shanghai 200032,China; 2 Shanghai Research Institute of Building Sciences(Group),Co.,Ltd.,Shanghai 200032,China)

摘要(Abstract):

共进行了7根采用巴掌榫和抄手榫维修加固的圆木柱试验研究。研究结果表明:仅采用巴掌榫维修圆木柱的承载力较对比试件降低8%,延性系数降低26%。但采用钢箍或CFRP布加强后,端部替换圆木柱的承载力和延性系数均可恢复。仅采用抄手榫维修圆木柱的承载力较对比试件未降低,但延性系数降低19%。采用钢箍加强后,端部替换圆木柱的承载力和延性系数均可完全恢复;采用CFRP布加强后,端部替换圆木柱承载力较钢箍加强试件还可提高30%,延性系数还可提高21%。
A total of 7 circular wood columns repaired with tenon and mortise joint were experimentally studied.The test results showed that the ultimate strength of column repaired only by tenon joint was decreased by 8% and the ductility decreased by 26% comparing with the control specimen.After the tenon joint was strengthened by steel hoops or CFRP strip,the ultimate strength and the ductility would be restored.The ultimate strength of column repaired only by mortise joint did not decrease,but the ductility decreased by 19%.After the mortise joint was strengthened by steel hoops,the ultimate strength and the ductility would be restored.After the mortise joint was strengthened by CFRP strip,the ultimate strength would increase by 30% and the ductility would increase by 21%.

关键词(KeyWords): 圆木柱;维修;延性;巴掌榫;抄手榫
circular wood column;repair;ductility;tenon joint;mortise joint

Abstract:

Keywords:

基金项目(Foundation): 国家“十一五”科技支撑计划(2006BAJ04A03-03)

作者(Author): 许清风;
Xu Qingfeng1,2(1 Shanghai Key Laboratory of New Technology Research on Engineering Structure,Shanghai 200032,China; 2 Shanghai Research Institute of Building Sciences(Group),Co.,Ltd.,Shanghai 200032,China)

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DOI: 10.19701/j.jzjg.2012.02.034

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