住宅用流通材とプレカットを活用した平行弦トラスの開発

Wooden trusses are effective method for constructing long span beams using standard size timber for residential use which is under six meters long. In this research, in order to create the standard drawings, the full-size bending test of parallel chord truss which took up three tree wood and was consisted by typical metal fittings and joints that can be produced by pre-cut system was carried out. As the results, it indicated structural property of each wood species and calculation formula to estimate the yield strength and the rigidity was established.