Bridge bridge preventing device, movement limiting device and fall bridge prevention method

摘要

Problem to be solved: to provide a bridge bridge preventing device, a movement restricting device, and a bridge prevention method using a simple means for restraining the fall of various kinds of bridges and the movement of the girder or the like without limiting the fixing bolts, and reducing the number of manufacturing steps. The bridge table 17 or the girder 18 or the main girder 18a mounted on the upper surface of the bridge is provided with a column bracket 19, and is made up of various steel wires, such as PC steel wires, chains, wires, or rods, aramid fibers or carbon materials The tightened cable 20 surrounds the circumference of the upper portion of the bridge table 17 substantially in the horizontal direction through an abutment or bridge leg bracket 22, and a predetermined distance in the substantially vertical direction of the bridge table 17 between the solid cable 20 and the bracket bracket A bridge bridge preventive device, a movement restricting device and a bridge prevention method are installed in a bridge having a connecting and connecting connection cable. Diagram