In the past study, we conducted compression tests with laminated veneer lumber of Japanese Larch. We observed the deflection and strain behaviour. As a result we could evaluate the bucking strength with Euler’s equation and Tetmajer’s method. For structural design we should expand the versatility of that method...
In this paper, bending behaviours in hybrid composite glulam timbers reinforced using deformed steel bars and epoxy resin adhesives (RGTSB) are presented. The technique RGTSB was developed in order to improve flexural stiffness and strength in glulam timbers...
We developed a one-hour fire-proof glulam made of Japanese cedar and got the authorization as a building material from the Minister of Land, Infrastructure and Transportation. We also succeeded to give one-hour fire performance to cross laminated timber (CLT) using the same concept. The both structures consist of three parts which...
This document describes development of I shaped beam(I-beam) using diagonal lattice panel, called Kizure Panel that is made of Japanese cedar, for web. Kizure Panel has excellent shear performance that is suitable for Ibeam. This I-beam has flanges of LVL using Japanese larch...
Since cross-laminated timber (CLT) panel is produced with its layer crosswise, the rolling shear stress is inevitably introduced to the cross layers if bent in out-of-plane direction. In this study, the shear strength of CLT panels was evaluated with 3-point bending test (short span) and asymmetric 4-point bending test in out-of-plane direction...
Hybrid composite glulam timber reinforced using deformed steel bars and epoxy resin adhesive (RGTSB), was significantly developed in Kagoshima University. In this paper, new experimental data on structural behaviour of CLT-to-the RGTSB composite beams is presented. Two full-scale simply-supported beams were tested...
Glulam members which are manufactured with Japanese cedar plantation timber are constructed into a box type of portal frames to investigate the moment-resisting performance when subjected to a lateral load. The joints of the frame are connected using aluminium connectors and self-tapping screw fasteners...
