Load-carrying capacity of timber joints using Glass-Fiber Reinforced Plastics and evaluation to strengthen timber earthquake-resisting walls
Glass-Fiber Reinforced Plastics
static loading test
earthquake resistant improvement
This study aims to investigate load-deformation capacity of wooden frame walls including with three sets of crossed diagonal timber members under earthquake, in order to use earthquake-resistant improvement of the existing wooden houses. The diagonal members like braces bear only axially compressive force and are expected to perform ductility. For reinforcement of tensile force, Glass Fiber Reinforced Plastics (GFRP) is used to resist in the structural frame. Two sets of experiments were conducted to investigate the strength of a glass fiber anchor for fixing a glass fiber sheet. One is column-to-beam connection test and the other is wooden frame wall test. For connection, 12 specimens were tested parametrically to check strength and variations due to construction work. For wall test, the stable load-carrying capacity is confirmed with wall magnification factor (wall proof strength) exceeding 4.0.