Bridge shoal large-tonnage beam section hoisting support and construction method thereof

Abstract

The invention discloses a bridge shoal large-tonnage beam section hoisting construction support system which sequentially comprises a high storage beam support, a lifting support and a lower slide way in the direction gradually away from the shoreside, the lower slide way is located on a bridge shoal, and the lower slide way is located below the lifting support so as to transport a to-be-constructed beam section. The lower slide way and the lifting support are partially overlapped in the vertical direction so that a to-be-constructed beam section on the lower slide way can be lifted to the lifting support, the top end of the lifting support and the top end of the high beam storage support are flush, and track beams are laid on the lifting support and the top end of the high beam storage support. Seamless joint of procedures such as underwater transportation, slippage and hoisting construction of the side-span shoal and the end beam section is achieved, and the construction risk is reduced.

Description

technical field [0001] The invention relates to the field of hoisting construction of large-tonnage beam sections in bridge shoals. More specifically, the present invention relates to a construction support system for hoisting large-tonnage beam sections in a bridge shoal and a construction method thereof. Background technique [0002] In bridge construction, the weight of the bridge stiffening beam section is generally hundreds of tons. The hoisting construction of the beam section is usually carried out by floating cranes, or the beam section is transported to the designated position by the beam transporting ship, and then the vertical lifting crane is used. promote. With the continuous innovation and rapid development of bridge construction technology, the span of bridges is constantly breaking through, and super-span suspension bridges and cable-stayed bridges will also become an inevitable trend. Breaking through to 1,000 tons, many traditional construction methods an...

AI Technical Summary

Problems solved by technology

With the continuous innovation and rapid development of bridge construction technology, the span of bridges is constantly breaking through, and super-long-span suspension bridges and cable-stayed bridges will also become an inevitable trend. Breakthrough to 1,000 tons, making many traditional construction methods and construction equipment unable to be used directly due to weight restrictions

Moreover, the side span involves the shore shoal area, and the geology is mostly silt layer geology. Large-scale water lifting equipment cannot enter the site for construction, and the draft of the ship is not enough. Most of them are areas without slings. The transportation of beam sections usually requires multiple transfers and cannot be directly lifted into place. During the construction of the upper structure, there are often problems such as tight beam section hoisting schedule, heavy lifting, high construction risk and great difficulty.

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