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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 seven roundwood columns with slab tenons and tenon handgrips were tested for reinforcement. The results show that the load-bearing capacity of repairing round wood columns with slat tenons is reduced by 8% and the ductility coefficient is reduced by 26% compared with the control specimen. However, with steel hoop or CFRP cloth reinforcement, the bearing capacity and ductility coefficient of the end replacement log can be restored. The load-bearing capacity of roundwood columns repaired with only tenon tenon was not reduced compared with that of the comparative specimens, but the ductility coefficient was reduced by 19%. After reinforced by steel hoops, the bearing capacity and ductility coefficient of the end-replaced circular columns can be completely restored. When the CFRP fabric is used for reinforcement, the bearing capacity of the end replacement circular columns can be increased by 30% The coefficient can also be increased by 21%.