Transverse anchorage system outside hollow slab bridge body and construction process thereof

The invention relates to a transverse anchorage system outside a hollow slab bridge body and a construction process thereof. A left side slab of a hollow slab bridge is provided with a left corbel; a right side slab is provided with a right corbel; both the left corbel and the right corbel are provided with sylphon bellows; a prestressed cable penetratively arranged in each sylphon bellows; the left corbel and the right corbel are connected through the prestressed cable; the left end and the right end of the prestressed cable are respectively fixed by a left anchor device and a right anchor device; and the prestressed cable is connected with a middle slab through a flying ring. The transverse anchorage system is characterized in that the side slabs on both sides of the hollow slab bridge are respectively provided with a reinforced concrete corbel; the reinforced concrete corbels are cast together with the side slabs; the reinforced concrete corbels on both sides are connected with each other through the prestressed cable; and both ends of the prestressed cable are fixed to the reinforced concrete corbels by the anchor devices, and thus the structural rigidity and the integrity of the whole anchorage system are improved, the anchorage ends are guaranteed to be free from loosening, and the looseness of the prestressed cable is avoided. The invention solves the problems of easy looseness of a profile steel anchor lining plate, easy generation of fatigue damage, corrosion of a steel plate, and the like in the traditional anchorage system.