| 摘要 |
PROBLEM TO BE SOLVED: To provide a pavement structure capable of preventing the occurrence of a crack and a depression in a surface layer of a composite pavement with a continuous reinforced concrete slab near a viaduct of a bridge. SOLUTION: In this pavement structure, the surface layer (20) is formed on the continuous reinforced concrete slab (10); a bridge abutment side end (11), which is positioned on the abutment (40) side of the continuous reinforced concrete slab (10), is rigidly connected to an expansion device (50) which is installed between the revetment (40) and a girder (60) and which follows the extension of the girder (60). The pavement structure can prevent the occurrence of the crack and the depression in the surface layer by making the expansion device absorb the extension and warpage of the concrete slab, which is caused by a variation in temperature, while the extension is hitherto inhibited by the revetment etc. COPYRIGHT: (C)2009,JPO&INPIT
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