Erecting composite beam on-site section splicing girder construction technology of double guide beam bridge erecting machine

A construction process and technology of bridge erection machines, which are applied in the erection/assembly of bridges, bridge construction, bridges, etc., can solve the problems of high safety risk, high cost, and large amount of foundation construction work, and achieve high installation accuracy, construction safety, The construction effect is obvious
CN105544409AActive Publication Date: 2016-05-04中交中南工程局有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
中交中南工程局有限公司
Publication Date
2016-05-04

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Abstract

The invention discloses an erecting composite beam on-site section splicing girder construction technology of a double guide beam bridge erecting machine, and relates to the field of engineering construction. At least two temporary piers are arranged between an auxiliary pier and a transition pier, and the transition pier, the first temporary pier, the second temporary pier and the auxiliary pier are sequentially arranged; according to the bridge erecting machine, a deck of a guide bright forwards move to conduct stride flushing, a steel beam installed between the transition pier and the first temporary pier is spliced, and then a steel beam between the first temporary pier and the second temporary pier is spliced; a bridge erecting machine rail is placed on the installed steel beam; after the bridge erecting machine rail is installed, the bridge erecting machine forwards moves to enable a front support point to be placed at the pier top of the auxiliary pier; and a temporary beam conveying channel is formed in the top of a beam section of a steel beam between the transition pier and the first temporary pier, a beam section of a steel beam between the second temporary pier and the auxiliary pier is installed, the bridge erecting machine backwards moves to retreat back, and the temporary piers are dismounted. The erecting composite beam on-site section splicing girder construction technology is safe and efficient, the cost is reduced, the steel beam installation accuracy is high, and the problems that a barge or a large floating crane is influenced by ebb and flow, the construction operation time is short, and the on-water operation face limitation is large are solved.
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Description

technical field

[0001] The invention relates to a construction technology in the field of engineering construction, in particular to a construction technology for erecting steel-concrete composite beams to assist in spanning existing steel girders by using a double-guided girder bridging machine. Background technique

[0002] With the advancement of science and technology and the rapid development of economy in our country, steel-concrete composite girder bridges, as a long-span structure, are widely used in highway and municipal fields. The steel-concrete composite girder bridge has the advantages of good fatigue resistance, reliable bearing capacity, saving steel, reducing beam height and increasing beam rigidity.

[0003] For large-span steel-concrete composite girder bridges (I-shaped steel girders combined with concrete bridge decks), the installation of steel girders in the side and auxiliary spans is still difficult to construct, has a great impact on costs, and invol...

Claims

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