WATER STOP STRUCTURE OF ROAD BRIDGE JOINT PART

摘要

PROBLEM TO BE SOLVED: To provide a water stop structure capable of easily constructing and preventing water leakage for long term when an expansion device is installed, replaced or repaired.SOLUTION: A water stop structure includes: an incompressible first cut-off material 14 which is formed by filling an upper part of a joint gap 7 in a joint part of a road bridge with a liquid rubber; a second compression-restorable cut-off material 15 which is engaged with a lower part of the joint gap 7 in a compressed state; an intermediate material 16 which is provided between the first cut-off material 14 and the second cut-off material 15 to prevent interference of a deformation of the first cut-off material and a deformation of the second cut-off material with each other.