The Method of Bridge Deck Installation Using Truss Type Auxiliary Platform

Abstract

The embodiment of the invention discloses a method performing bridge deck slab installation by adopting a truss-type auxiliary platform. The method comprises the following steps that pre-machined brackets provided with sliding bases are installed on steel truss beam web members and diagonal web members, and steel truss beam sections provided with the brackets are hoisted and spliced; pre-machined sliding rails capable of performing directional displacement along the sliding bases are installed on the sliding bases, and platform plates are fixed to the sliding rails; prefabricated bridge deck slabs are hoisted and spliced according to a preset laying sequence; the bridge deck slabs located in displacement distance intervals limited by the sliding rails are reinforced by using the platform plates. The brackets provided with the sliding bases are installed on the steel truss beam web members and the diagonal web members, and the sliding rails of the platform plates are arranged and fixed to the sliding bases, so that the platform plates can perform synchronous displacement along the sliding bases, and the problem that the platform plates for fixing the bridge deck slabs are repeated dismounted and accordingly the bridge deck slab laying progress is slow and the efficiency is low is avoided.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a method for installing a bridge deck by using a truss-type auxiliary platform. Background technique [0002] The steel truss bridge is a structural form in which the solid-web steel plate girder bridge is hollowed out according to certain rules. Withstand axial force. Compared with the solid web beam, the whole web is replaced by sparse vertical webs, so as to save steel and reduce the self-weight of the structure, and because the steel consumption of the vertical webs is reduced compared with the web of the solid web beam, the steel truss beam can be used as It has a greater height, so it has greater rigidity and greater spanning capacity. [0003] In the prior art, the deck of the steel truss bridge needs to be laid with a prefabricated deck. A construction platform used by personnel. However, due to the hollow structure of the steel truss girder bridge, the inside of th...

AI Technical Summary

Problems solved by technology

However, due to the hollow structure of the steel truss girder bridge, the inside of the girder body is mostly a hollow structure, and there is no platform for construction personnel to provide construction work between the truss girder bridges. To meet the needs of construction personnel for standing, temporary stacking of construction parts or equipment, etc.

[0004] The inventors of the present invention found in the research that the bridge length of the truss bridge is often long, and the length of the temporary construction platform is limited at the same time. Therefore, when using the temporary auxiliary construction platform for construction, it is usually carried out segment by segment. The auxiliary construction platform realizes its movement between different sections. On the one hand, this auxiliary construction platform wastes a lot of manpower and material resources due to repeated disassembly and assembly. On the other hand, it also causes a waste of time, affects the construction period, and greatly restricts the progress of the project.

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