CAST-IN-PLACE TOOLING FOR POLYURETHANE ELASTOMER EXPANSION JOINT OF RAILWAY BRIDGE

摘要

Disclosed is cast-in-place tooling for a polyurethane elastomer expansion joint of a railway bridge, the tooling comprising: an air bag (3), an inflation valve (5), an inflation pump (6), an air pressure meter (7), end gaskets (8) and stoppers (9), wherein the air bag (3) is provided with the inflation valve (5); the air pressure meter (7) is mounted at a ventilation pipe of the inflation pump (6); the air bag (3) is covered with a layer of plastic film; and the end gaskets (8) and the stoppers (9) are mounted at an upper portion of the air bag (3) and at two ends of a bridge joint. The tooling innovates a construction process for high-speed railway expansion joints, and improves the working efficiency of elastomer expansion joint construction.