为提高木构件端部握钉性能，采用粉状碳纤维对木构件端面进行增强，研究了增强端部握钉性能。结果表明：在木构件端面复合碳纤维可有效增强木构件端部的握钉性能；木构件内部木材截面面内力学性能优于端面，采用开口方法可在一定程度上提高木构件端部握钉力；木螺钉直径越大木构件端部握钉力越大，木构件增强端部宜选用较大直径螺钉；采用碳纤维增强端面的方法可使木构件薄弱的端面获得与径向木材同等水平的握钉力，可使木构件端部十字槽头木螺钉及六角头木螺钉握钉力分别提高了24.98％和28.11％。这对木构件连接设计及安全服役具有重要的指导意义。%To improve the wood endscrew holding performance. Powdered carbon fibers were used to reinforce wood members′end. The results showed that carbon fiber reinforced wood end′s screw holding capability was significantly greater than that of the normal wood end. In-plane mechanical performance of wood members′interior section was better than that of the end face. The opening way adopted could improve the screw holding capability of wood members′end in a certain extent. Large diameter screw was suitable for reinforcing carbon fibers in wood members′end, for larger diameter screw could make screw holding capability stronger. The method of wood members′end reinforced by carbon fibers could help weak wood end obtain the same level of screw holding capability as radial wood does. Meanwhile, the method also could make holding capability of cross recessed countersunk head wood screw and hexagon head wood screw increase by 24. 98% and 28. 11% respectively. Such method is of important guiding significance to help improve wood connection design and safe service.
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