Concrete arch-slab bridge of stone facing

摘要

PURPOSE: An arched concrete slab bridge with a stone exterior is provided to improve an exterior by attaching multiple stone plates to the exposed surfaces of concrete blocks. CONSTITUTION: An arched concrete slab bridge with a stone exterior comprises a pair of concrete footings(1), multiple prestressed precast segments(2), elastic rubber plate type bridge bearings(5), and multiple PC steel members(3b). Each concrete footing has a segment latching protrusion(1a). The prestressed precast segments are composed of multiple standard blocks(2'') and beginning and end blocks(2'). The standard blocks are formed by installing stone plates(21) on the exposed surfaces of concrete blocks. The beginning and end blocks are fixed to concrete support protrusions(1b) of the concrete footings. The bridge bearings are installed between the bottom surfaces of the beginning and end blocks and the top surfaces of the concrete footings and absorb horizontal displacement. The PC steel members bind the prestressed precast segments in a horizontal direction.