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Construction method for ultrahigh combined support for bridge side span cast-in-situ section

A technology for combining brackets and bridges, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as low stability and failure to meet safety requirements, achieve high reuse rate, reduce material input and construction costs, The effect of strong bearing capacity

Active Publication Date: 2014-04-16
CCCC FOURTH HIGHWAY ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Beam-column support, also known as less support, has low stability. When bridge construction will encounter complex geological conditions and harsh climate conditions, such as in Northwest my country, Xinjiang and other places, there are many and sudden monsoons, and the instantaneous wind force can reach 12 Above the level, the use of beam-column support for the cast-in-place section with a large or super high height from the ground obviously cannot meet the safety requirements

Method used

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  • Construction method for ultrahigh combined support for bridge side span cast-in-situ section
  • Construction method for ultrahigh combined support for bridge side span cast-in-situ section
  • Construction method for ultrahigh combined support for bridge side span cast-in-situ section

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Embodiment Construction

[0032] The present invention is a bridge side-span cast-in-place section ultra-high composite support, comprising a beam-column support 1, and two cantilever brackets 3 fixed on the bridge transition pier body 2;

[0033] Such as figure 1 , figure 2 , image 3 As shown, the beam-column support 1 includes four columns of the same height located at the four vertices of a rectangle in the horizontal direction, which are respectively the first column 11, the second column 12, the third column 13 and the fourth column 14 , each column is perpendicular to the ground and its lower end is fixed on the ground, usually on the expanded foundation of the bridge transition pier cap. The upper end of each column is fixedly provided with a column steel sand cylinder 4, and the steel sand cylinder is generally welded and fixed with the upper end of the column; between the first column 11 and the second column 12 and the third column 13, and between the fourth column 14 and the first column...

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Abstract

The invention provides a construction method for an ultrahigh combined support for a bridge side span cast-in-situ section. The combined support comprises a beam column type support and two cantilever brackets, wherein upright posts of the beam column type support are fixedly connected with a bridge transition pier body through connecting rods; and the two cantilever brackets are fixed on the bridge transition pier body; bearing beams are arranged on the upright posts of the beam column type support and the cantilever brackets, and longitudinal beams are arranged on the bearing beams. The beam column type support is organically combined with the cantilever brackets, so that the combined support is strong in bearing capacity and wide in using height range and is suitable for T-shaped steel structures and cantilever beam side span cast-in-situ sections which are high in terrain clearance and are in complex geological conditions and severe climate environments.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a method for constructing a T-shaped steel structure of a bridge or a side-span cast-in-place section of a cantilever beam by using a superhigh bracket for construction. Background technique [0002] With the densification of road and railway networks, the application of T-shaped rigid structures and cantilever beams in bridge engineering has become very common. T-shaped rigid structures and cantilever beam side-span cast-in-place supports are mostly used as floor supports, and floor supports are divided into Mantang Brackets and post-and-beam brackets. The full hall support is generally suitable for the construction of the cast-in-place box girder with a small height from the ground, and the beam-column support is generally used for the cast-in-place construction of the cast-in-place box girder with a large height from the ground. Beam-column support, also known as less suppo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 王昕郝明王志强尹玉秋王海平张占国
Owner CCCC FOURTH HIGHWAY ENG
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