| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to easily give earthquake-resistant reinforcement even for an existing building having inadequate earthquake-resistant strength by reinforcing the surface of a portion of timber required to be reinforced with fiber strengthened sheet together with an adhesive. SOLUTION: Two wood members 2 and 4 are normally jointed with various kinds of traditional jointing construction at their end portions respectively. In these various kinds of jointing constructions, the portions requiring the reinforcement are wrapped with the fiber strengthened sheet for covering the whole surface of its peripheral surface over a predetermined length for the reinforcement. At this time, a synthetic resin adhesive is used together and applied to the surfaces of each joint of wood members 2 and 4 and their peripheral surfaces. This fiber strengthened sheet comprises prepreg having fibers directions oriented laterally and longitudinally and solidified to a sheet shape in one united body in advance. In reinforcing these joint constructions, the fiber direction of the fiber-strengthened sheet is direction along the longitudinal direction of the fiber strengthened sheet. A tensile force is borne by fibers and transmitted through two wooden members, and the tensile strength can be greatly enhanced. |
