DRAINAGE STRUCTURE OF SEAM SECTION OF ROAD BRIDGE

摘要

PPROBLEM TO BE SOLVED: To discharge rainwater, which permeates a pavement and which is accumulated on the backside of a vertical plate portion of a joint member, in the longitudinal direction of a seam, in an expansion joint provided with a plough guiding plate. PSOLUTION: A water-conveyance member elongated in the longitudinal direction of the seam of the road bridge is provided on the backside of the vertical plate portion of the joint member; and the rainwater permeating the pavement flows into the water-conveyance member, so as to be discharged to a low-position side according to a cross slope of the road bridge. PCOPYRIGHT: (C)2011,JPO&INPIT