Importance

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Abstract

A floor slab bridge structure is capable of enhancing the strength with which bridge girders and concrete bridge piers are rigidly joined so as to effectively suppress expansion and contraction, deflection, and distortion of the bridge girders, and to synergistically enhance the strength of connection concrete itself against the expansion and contraction, distortion, etc., to thereby be effective to prevent collapse of a bridge due to a large earthquake. Slab concrete is hammer-set between sides of respective bridge girders, which are spaced apart in a bridge width direction, along a length direction of the bridge girders. Connection concrete, in which bridge girder portions supported on bridge bottom surfaces of concrete bridge piers supporting the bridge girders are embedded, is additionally deposited on the bridge bottom surfaces to form a floor slab bridge structure constituting a rigid joining structure. The slab concrete and the concrete bridge piers are thus joined together through the connection concrete.

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First Claim