METHOD OF REPLACEMENT WITH PRECAST FLOOR SLAB FOR CONCRETE BRIDGE

To provide a method of replacement with a precast floor slab for a concrete bridge that enables replacement with the precast floor slab by effectively fixing a tension resisting material of a main girder such as a stirrup.SOLUTION: In a method for replacement with a precast floor slab of a concrete bridge that replaces an RC floor slab of the concrete bridge with the precast floor slab, a top portion of a main girder connected with the RC floor slab of the concrete bridge is chipped off to expose a top portion of a tension resisting material such as a stirrup, and the exposed tension resisting material is cut in a middle and fixed effectively by mechanical fixing means, thereby reducing the effective height of the main girder, and then the precast floor slab is mounted on the main girder of which the effective height has been reduced.SELECTED DRAWING: Figure 9 【課題】主桁のスターラップなどの引張抵抗材を有効に定着してプレキャスト床版へ取り替えることが可能なコンクリート橋のプレキャスト床版への取替方法を提供する。【解決手段】コンクリート橋のＲＣ床版をプレキャスト床版へ取り替えるコンクリート橋のプレキャスト床版への取替方法において、コンクリート橋のＲＣ床版と接合する主桁の上部を斫り取ってスターラップなどの引張抵抗材の上部を露出させ、露出させた当該引張抵抗材を途中で切断して機械式定着手段で有効に定着して前記主桁の有効成を減じた上、有効成を減じた主桁の上にプレキャスト床版を載置する。【選択図】図９