WOOD BRIDGE USING LONG-SIZED BEAM MADE OF PRESTRESSED GLUE LAMINATED WOOD AS MAIN GIRDER

摘要

PROBLEM TO BE SOLVED: To introduce prestress to a main girder composed of a long-sized beam made of glue laminated wood used for a wood bridge, and to build the wood bridge between a long span.;SOLUTION: In the wood bridge in which concrete floor slabs are placed and anchored on the top faces of a plurality of the main girders composed of glue laminated wood, the main girders are constituted of joined beams, in which a plurality of the long-sized beams made of glue laminated wood, in which through-holes are bored in the longitudinal direction, or long-sized girders made of the glue laminated wood are joined through joining auxiliary tools, PC steel materials penetrated and inserted into the through-holes and anchorage devices disposed at both ends of the PC steel materials, and prestress is introduced to the long-sized beams made of the glue laminated wood from the PC steel materials through the anchorage devices.;COPYRIGHT: (C)2004,JPO