Construction reinforcing platform for medium-and-small-span beam bridge

Abstract

The invention provides a construction reinforcing platform for medium-and-small-span beam bridge, which comprises a construction platform, wherein a rail is arranged on the top surface of the construction platform; the rail is parallel to the length direction of the construction platform; a pulley is installed on the rail in a rolling mode; a jacking machine is installed through the pulley in a sliding mode; fences are arranged on the two opposite sides of the top face of the construction platform; and the jacking machine is arranged between the fences on the two sides. The pulley devices are arranged on the two opposite sides of the construction platform, the two opposite sides are parallel to the width direction of the construction platform, the pulley devices are located on the outer sides of the fences, the construction platform is slidably installed on sliding rails through the pulley devices, the sliding rails are fixed to a beam bridge through bracket columns on beam bridge columns, and the sliding rails are arranged in the width direction of the beam bridge and each have one end extends out of the beam bridge. The construction reinforcing platform can guarantee construction safety, can reinforce a beam bridge with a wide bridge floor, can conveniently reinforce the bridge floor by using heavy materials such as externally bonded steel plates, saves time and labor, saves cost, is wide in application range, and does not influence traffic.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a construction reinforcement platform for small and medium span beam bridges. Background technique [0002] Most of the existing bridges in my country are built according to the standards of the last century, and the design load is relatively low. In recent years, with the increasing per capita ownership of private cars, the traffic flow of bridges has increased rapidly. The bridge deck is prone to cracking in the overload state. Therefore, in order to ensure the normal operation of the bridge, the bridge deck needs to be reinforced. [0003] At present, the methods commonly used to strengthen the bridge deck are: grouting repair, external steel plate reinforcement and FRP material reinforcement, among which, FRP material reinforcement is divided into external FRP sheet (cloth) reinforcement, FRP (reinforcement) grid reinforcement, Prestressed FRP reinforcement and embedded FRP...

AI Technical Summary

Problems solved by technology

However, there are deficiencies in the above-mentioned construction and reinforcement platforms. Among them, the length of the bridge inspection vehicle platform is limited, and there is no solution for bridges with wide decks. In addition, the bridge inspection vehicles operate on the bridge, which affects the normal traffic operation, and the bridge inspection vehicle is expensive and reliable. Low; the scope of application of the tower support is limited, and it is only suitable for bridges with a small clearance under the bridge and a good foundation. It is time-consuming and labor-intensive to use the bracket as a construction reinforcement platform; the conventional construction platform is also not suitable for bridges with wide decks, and the conventional construction platform is difficult to move, and it is difficult to reinforce the bridge deck with external steel sheets.

Insufficiency of the above-mentioned construction reinforcement platform makes it time-consuming, labor-intensive and difficult to reinforce the beam bridge deck. Seats, L-shaped connecting seats and slide rails are spliced ​​into a slidable working platform on the steel beams, but the platform is not equipped with guardrails, which has potential safety hazards. Repeated disassembly or installation of multiple tracks is time-consuming, labor-intensive and costly

Another Chinese utility model patent with the announcement number CN201820707145 proposes a combined wet joint construction platform for bridges. The platform is equipped with a bottom plate and side fences to ensure safety, but the platform is set between beams and is not suitable for bridge construction. hardened platform

Furthermore, the Chinese invention patent application with the publication number CN202010421890 proposes a high-efficiency bridge engineering construction platform, which can realize the left and right movement of the workbench and solve the problem of transverse bridge width reinforcement. When the platform is in the process of transporting heavy materials or the construction process of construction personnel, it is time-consuming, laborious and difficult to operate.

Images