COLUMN JOINT STRUCTURE AND GLUED LAMINATED WOOD

摘要

PROBLEM TO BE SOLVED: To provide glued laminated wood which can increase strength against bending moment or a vertical tensile force in a joint between a wooden column and a beam or a joint between the wooden column and a foundation by increasing the pullout resistance force of a screw member screwed in the axial direction of the column, and which can increase the pullout resistance force of the screw member screwed in the axial direction.;SOLUTION: The column is formed of the glued laminated wood which is laminated with a large cross section by sticking a plurality of pieces of wood together in such a manner that axis lines are almost parallel to one another. A compressed member 22, in which the wood is compressed at a high temperature, is used in a position in which the screw member 11 is to be screwed; an uncompressed member 23 is used in other locations; and lamination is performed. A cross-sectional shape of the compressed member is formed as a rectangle, the one side of which is shorter than the other sides adjacent to one another; the length of the short side is set smaller in dimension than an outside diameter of a spiral overhang portion of the screw member; and the length of the long side is set larger in dimension than the outside diameter of the overhang portion of the screw member. The compressed member is compressed in the short-side direction of the cross section.;COPYRIGHT: (C)2010,JPO&INPIT