Waterproof expansion joint

摘要

A waterproof expansion joint comprises a ballast protection plate and at least one locating device configured to retain the ballast protection plate over a deck joint. A flexible sealing member located below the ballast protection plate can include at least one flange portion and at least one expansion feature. Each expansion feature can include a shape preformed into the flexible sealing member extending downward into the deck joint and configured to deflect, enabling variation in the width of the flexible sealing member to match the width of the deck joint.

主权项

1. A method of waterproofing a deck joint of a bridge, the method comprising:
applying a bridge deck waterproof membrane over a portion of the top surface of at least two girders which define a deck joint; applying an adhesive layer over a portion of the waterproof membrane; installing a flexible sealing member, wherein the flexible sealing member comprises two flange portions, wherein installing a flexible sealing member comprises placing each flange portion on the adhesive layer on each girder, such that each flange portion bonds to each girder; installing a ballast protection plate spanning the deck joint; and installing a pair of locating devices to retain the ballast protection plate from falling into the deck joint, wherein each locating device is installed on the top surface of each girder.