| 摘要 |
PROBLEM TO BE SOLVED: To provide a high strength reinforced concrete precast slab capable of quickly constructing concrete pavement, without requiring a large-scale facility such as a prestress introducing facility, by keeping strength equal to or more than post-tension prestressed concrete pavement. SOLUTION: Upper surface side two main reinforcements 2 parallel in the longitudinal direction, are arranged at a predetermined interval in the width direction of a precast slab. Under surface side one main reinforcement 3 is arranged in the middle in the width direction of the upper surface side main reinforcements 2. The upper surface side main reinforcements 2 and the under surface side main reinforcement 1 are fixed by an oblique reinforcement continuously formed in the longitudinal direction, and is fixed by a horizontal reinforcement 40 formed in an S shape continuing in the longitudinal direction from the upper surface side of the upper surface side two main reinforcements 2. A truss reinforcement joining body of a triangular shape in a cross-sectional view, is constituted of the upper surface side main reinforcements 2, the under surface side main reinforcement 1, the oblique reinforcement 4 fixing these reinforcements and the horizontal reinforcement. The reinforcement joining body is arranged at the predetermined interval in the width direction of the precast slab, and high strength concrete is placed. Resin is applied to an under surface of the high strength reinforced concrete precast slab. COPYRIGHT: (C)2008,JPO&INPIT
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