Abstract: A reinforcing structure for a hinge section of a Gerber bridge including first and second girders (10, 11) which are connected with each other through the hinge section, comprises reinforcing steels (13a, 14a) continuously established on at least one of upper and lower surfaces of the first and second girders (10, 11) and reinforcement (13, 14) established by covering at least one of the upper and lower surfaces of the first and second girders on which the reinforcing steels are established, with curing material so as to integrally connect the first and second girders (10, 11) with each other. By making the hinge section to be continuous between the first and second girders to thereby establish the Gerber bridge as a continuous bridge, the Gerber bridge can have the same structure as a continuous bridge which transfers bending moment therethrough, and thus can obtain superior reinforcement effects and long-term stability.

Abstract: The present invention provides a method of reinforcing a concrete made construction having the step of fixedly securing a grating member acting as a reinforcement onto a surface of a concrete made construction with a fixture so that the fixture imparts tension force to the grating member in a plane of the grating member. The fixture comprises, for instance, an anchor and a pin. The anchor includes an insertion portion to be inserted into a concrete made construction, the insertion portion being formed at a distal end thereof with an expanding slot, an arc-shaped head portion, and a tapered portion connecting the insertion portion to the head portion and having a cross-sectional area increasing from insertion portion towards the head portion, a through hole being formed axially through the anchor. The pin is to be inserted into a concrete made construction through the through hole.

Abstract: A method of reinforcing a concrete made construction comprising the steps of provisionally disposing a reinforcement member onto a lower surface of a concrete made construction, forming holes at the lower surface of a concrete made construction, and inserting fixtures into the holes to fixate the reinforcement member onto the lower surface of a concrete made construction so that the fixture imparts tension force to the reinforcement member in a plane of the reinforcement member. For instance, a fixture includes a device for applying tension force to the reinforcement member in a plane thereof by moving at least a part of the fixture in a direction perpendicular to the reinforcement member. The invention ensures fixation of a reinforcement member onto a lower surface of a concrete made construction such as a bridge to which repeated live loads are always applied.