抄録
Timber joints are one of the most important considerations in timber bridge design because they provide continuity to the members as well as strength and stability to the system. The connections may consist entirely of wood members but frequently involve the connection of wood to steel or other materials. This paper presents an experimental and analytical studies on bending behavior of prestressed laminated timber beam made of Japanese Cedar. The concept of prestressed laminated timber for bridge applications was developed in Canada. This bridge deck consist of lumber or glued laminated timber transversely posttensiond by high-strength steel bars anchored against steel bearing plates. In this paper, glued laminated timber longitudinally posttensioned by high-strength steel bars are proposed. The simplified bi-linear stress-strain relationships are assumed for japanese ceder, and the effect of joints on elasto-plastic deformation of prestressed laminated timber beam are investigated.
