国産材を使った新しい木造建築の開発

Abstract

While Japan is world eminent forest large country, the foresty follows a course of the decline. Therefore I do not become the wood resources which are useful as building materials without moderate thinning being performed. Therefore I aim at the development of the new wooden ramen architecture which used thinning materials in this study. A joint becomes important to realize a wooden bent. Therefore I thought about the split Model T joining that I used the lag screw bolt which was congenial to a tree for. At first I examined the basic performance of the lag screw bolt, but I exceeded the standard that Architectural Institute of Japan established with thinning materials enough and understood a safe thing. I performed the bending strength experiment of the split Model T joint based on the basic performance of the lag screw bolt next. As an examination body, I used [a pillar/beam-wood], 2 of the [pillar-wood, a beam-steel frame]. the bending strength of the former showed an extremely low value, and it followed thatI was poor in utility. On the other hand，the bending strength of the latter showed an extremely high price，and the break occurred by the drawing of the lag screw bolt of the pillar side. The drawing strength was able to almost use drawing power to the maximum. In addition，load at the maximum came to the left side than the value of the permission angle of rotation (θa), and it followed that I was good.