A construction method for super long side span straight section of high pier PC bridge with corrugated steel web

Abstract

The invention relates to a construction method for the super-long side span straight section of a high pier with corrugated steel web PC bridge. Closing and pouring of the remaining side-span straight section; bracket installation includes dividing the side-span straight section to be constructed into two construction sections longitudinally, pre-embedding the brackets symmetrically on both sides of the side pier and loading preload symmetrically as the first The supporting platform of the construction section; the first section of side span cast-in-place construction includes installation of side span cast-in-place corrugated steel webs and pouring of side span cast-in-place sections of set length; The web is connected with the corrugated steel webs on both sides of the side-span closure to form a side-span corrugated steel web channel, which can support the movement of the hanging basket. Pour the remaining side span straight segments. It effectively solves the problems of labor consumption, consumables and low safety of traditional large brackets and other manufacturing methods.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a construction method for a straight section with a high pier and a super long side span of a PC bridge with corrugated steel webs, which is used for the construction of a straight section with a super long side span of a high pier of a PC bridge with a corrugated steel web. Background technique [0002] PC composite box girder with corrugated steel web is a new type of steel-concrete composite structure formed by using corrugated thin steel plates instead of concrete webs. Concrete web, which can greatly reduce the self-weight of the box girder, reduce the engineering volume of the substructure, and reduce the cost (compared with the prestressed concrete bridge of the same span, the cost can be saved by 10%~20%), so as to realize the light weight of the bridge. At the same time, the corrugated steel web solves the problem of web cracking of traditional pre...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a construction method for the super-long side-span straight section of high pier with corrugated steel web PC bridge, to solve the difficulty in setting up the support system and the material input in the construction of the super-long side-span straight section of high pier in the prior art Large technical problems with low construction efficiency

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