Steel box girder overhaul hole structure convenient for overhauling

Abstract

The invention discloses a steel box girder overhaul hole structure convenient for overhauling. The steel box girder overhaul hole structure comprises an outer-layer rectangular wellhead device and aninner-layer circular wellhead device, wherein double layers of wellhead are provided with replaceable water stop sealing devices; the outer side wellhead device comprises an outer side rectangular wellhead and an outer side rectangular overhaul well lid, a first waterproof rubber pad is arranged between the wellhead and the well lid, and a replaceable water stop kit is arranged between the wellhead and a groove in the end part of the well lid; and the inner side wellhead device comprises an inner side circular wellhead and an inner side circular overhaul well lid, a second waterproof rubber pad is arranged between the wellhead and the well lid, the inner side wellhead protrudes out of a steel box girder, and the space between the inner side wellhead and the outer side wellhead is coated with a waterproof layer. According to the steel box girder overhaul hole structure convenient for overhauling, the overhaul hole structure is arranged in a bridge floor overhaul space (such as an isolation belt or a pedestrian way), so that the technical problem of urban steel girder overhaul is effectively solved, and the technical problems of water tightness, bridge floor attractiveness and the like of the overhaul hole structure can be solved.

Description

technical field [0001] The invention belongs to the improvement technology of bridge structure. Background technique [0002] At present, steel box girder inspection holes are usually set at the bottom and sides of steel box girder girders, which are more suitable for steel girder bridges with no inspection space on the bridge deck. For steel girder bridges with complex space under the bridge or high bridge height, the inspection holes are set on the bottom and side of the girder, which is not convenient for maintenance, which will cause the following inconveniences: 1. Temporary measures such as erecting supports or using elevators for internal maintenance of steel girders Only personnel can enter; 2. Set up supports or use elevators to occupy the lanes under the bridge, affecting the traffic under the bridge; 3. It is difficult for maintenance personnel or machinery and equipment to enter the interior of the bridge, and there are potential safety hazards for under-bridge o...

AI Technical Summary

Problems solved by technology

For steel girder bridges with complex space under the bridge or high bridge height, the inspection holes are set at the bottom and side of the girder, which is not convenient for maintenance, which will cause the following inconveniences: 1. Temporary measures such as erecting brackets or using elevators for internal maintenance of steel girders Only personnel can enter; 2. Set up supports or use elevators to occupy the driveway under the bridge, which will affect the traffic under the bridge; 3. It is difficult for maintenance personnel or equipment to enter the interior of the bridge, and there are potential safety hazards in the operation and maintenance under the bridge

The above difficulties can be solved by using the bridge deck space (isolation belt or sidewalk) to set up inspection holes, but the current technical measures cannot fundamentally solve the problems of watertightness of the bridge deck inspection holes and the aesthetics of the bridge deck

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