Screw holding capability of larch wood members′end reinforced using powdered carbon fibers
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.
国家科技期刊平台
NSTL
万方数据
维普
