A working platform for secondary construction of cap beams

Abstract

The invention relates to the technical field of bridge construction structures, in particular to a work platform for secondary construction of a cap beam. The work platform comprises a traveling device connected onto two adjacent T-shaped beams along the direction of a bridge and a platform body positioned below the traveling device, wherein the traveling device is served as a portal-frame structure of which the two ends along the transverse direction of the bridge are respectively erected on the two adjacent T-shaped beams; rolling wheels are arranged at the lower end of the traveling device; a connecting frame is arranged between the platform body and the traveling device; the platform body is positioned below the front end of the traveling device; and through the connecting frame, the platform body is fixed on the traveling device to form a cantilever structure positioned in front of the traveling device. The work platform provided by the invention adopts the cantilever structure; through a counterweight arranged on the traveling device which can travel on a beam surface, the safety and the stability of the work platform can be ensured; and the work platform is simple in structure, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of bridge construction structures, in particular to an operation platform for secondary construction of a cap beam. Background technique [0002] With the rapid development of my country's economy, the demand for transportation is increasing rapidly, and the construction technology of bridge construction is also constantly improving. In the process of bridge engineering design, the combination system of large cantilever prestressed cap beam + prefabricated beam is more and more widely used in bridge construction due to its advantages of small structure occupation, convenient and fast construction, strong bearing capacity and beautiful appearance. [0003] The construction of the large cantilever prestressed hat beam is generally divided into two stages. The first stage is the pouring and prestressed construction of the hat beam. In this construction stage, part of the prestressed beam is stretched to ensure ...

AI Technical Summary

Problems solved by technology

[0004] At present, for the secondary construction of the large cantilever prestressed cap beam (secondary tensioning, anchor sealing and decoration), the work platform is mainly provided by erecting brackets, which increases the turnover times of materials, affects the construction period, and requires pre-treatment of the bracket foundation

For the large cantilever cap beam of the water pier, the method of suspending the working platform from the cap beam is usually used for secondary construction. This method is frequently installed and dismantled and the process is complicated, which seriously affects the construction progress. At the same time, the safety of the suspended construction on the water surface cannot be guaranteed.

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