Bridge pier capping beam hoop steel beam template system and construction method thereof

Abstract

The invention discloses a bridge pier capping beam hoop steel beam template system and a construction method thereof. A template system support comprises pier columns, upper hoops, lower hoops, a capping beam pouring template, a cross beam and so on; the upper hoops and the lower hoops are connected with the pier columns through high-strength bolts; hoop cover plates are arranged at the end partsof the upper hoops and the lower hoops; hoop cover plate cross beam placing grooves are formed in the hoop cover plates at the upper end parts of the upper hoops; the cross beam is mounted on the hoopcover plates; longitudinal distribution beam limiting devices are arranged on the cross beam; longitudinal distribution beams are mounted on the cross beam; bottom dies are arranged on the longitudinal distribution beams; an integral steel reinforcement cage, a corrugated pipe, prestressed steel strands and P-shaped anchorage devices are arranged in the capping beam pouring template; and an unitplug-in type safety protective frame is mounted on the pier columns through pier column reserved placing holes. According to the bridge pier capping beam hoop steel beam template system, the bracket foundation treatment cost can be saved, the construction efficiency can be enhanced, the concrete filling difficulty after pre-stressed construction is finished can be reduced by using a tensioning notch sealing anchor concrete filling duct, and the flatness and smoothness of the surface of the tensioned beam body is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of bridge pier cover beam construction, in particular to a bridge pier cover beam hoop steel girder formwork system and a construction method thereof. Background technique [0002] The level of domestic bridge engineering construction has developed rapidly with the improvement of economy and society. Under this background, more and more bridge projects have applied long-span prestressed concrete pier cap beams, and the layout of prestressed steel strands has become more complicated. Prestressed bridges are different from traditional bridge construction techniques. Simply increasing prestress will cause a series of problems, such as changes in the support type of long-span cap beams, reinforcement arrangement forms, complicated binding sequences, and the location of bellows and reinforcement. Contradictions, the type of template needs to be adjusted, the sealing of the tensioning slot is not beautiful, etc. ...

AI Technical Summary

Problems solved by technology

[0002] The level of domestic bridge engineering construction has developed rapidly with the improvement of the economy and society. In this context, more and more bridge projects have applied long-span prestressed concrete pier cap girders, and the layout of prestressed steel strands has become more complicated.

Prestressed bridges are different from traditional bridge construction techniques. Simply increasing prestress will cause a series of problems, such as changes in the support type of long-span cap beams, reinforcement arrangement forms, complicated binding sequences, and the location of bellows and reinforcement. Contradictions, the type of template needs to be adjusted, the sealing of the tensioning slot is not beautiful, etc.

[0003] Traditional bridge pier cap beam construction requires the erection of brackets. This construction mode needs to deal with the foundation of erected brackets to enhance its bearing capacity, which is time-consuming and laborious; On the side of the beam body, this grouting mode is difficult to vibrate, and finally has a great impact on the aesthetics of the beam body surface

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