REPLACEMENT METHOD OF CONCRETE SLAB FOR HIGHWAY ROAD

To provide a replacement method of a concrete slab for a highway road which is divided into three or more sections in a road width direction, and can perform work while maintaining usage of a plurality of traffic lanes in a heavy traffic section with a heavy traffic volume at all times.SOLUTION: A replacement method of a concrete slab for a highway road includes: installing new precast concrete slabs 22, 22... where a recessed hole or recessed groove-like recess for forming a shear force transmission part is formed in a width direction joint surface part, in a state where other plural work sections are shared as roads for each of the work sections where a concrete slab is divided into three or more sections in a road width direction; forming a joint void part for forming a shear force transmission part between joint surface parts; filling the joint void part for forming the shear force transmission part with an expansive or unshrinkable filler; and forming a shear force transmission part 26 between the new precast concrete slabs 22, 22.SELECTED DRAWING: Figure 2 【課題】道路幅員方向で３分割以上の区分に分割し、交通量の多い重交通区間での常時複数車線の供用を維持しつつ作業を行うことができる高架道路用コンクリート床版の架け替え方法の提供。【解決手段】高架道路用コンクリート床版の架け替え方法は、コンクリート床版を道路幅員方向に少なくとも３以上に分割した作業区画毎に他の複数の作業区画を道路として供用した状態で幅員方向接合面部に凹穴又は凹溝状のせん断力伝達部形成用凹部が形成されてなる新設プレキャストコンクリート版２２，２２...を設置し、接合面部間にせん断力伝達部形成用目地空隙部を形成し、せん断力伝達部形成用目地空隙部に膨張性又は無収縮性の充填材を充填し、新設プレキャストコンクリート版２２，２２間にせん断力伝達部２６を形成する。【選択図】図２