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Construction method of a semi-rigid integral abutment bridge supported by concrete piles

An integral abutment and concrete pile technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problems of insufficient longitudinal deformation capacity and large horizontal rigidity of the bridge, and achieve the purpose of increasing the allowable bridge length, prolonging the service life, and strengthening Effect of Longitudinal Deformability

Inactive Publication Date: 2016-06-29
FUZHOU UNIV
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Problems solved by technology

[0004] It can be seen that the use of concrete piles in the integral abutment has problems in performance and economy, and the problem of insufficient longitudinal deformation capacity of the bridge due to its high horizontal stiffness has not been well resolved so far

Method used

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  • Construction method of a semi-rigid integral abutment bridge supported by concrete piles
  • Construction method of a semi-rigid integral abutment bridge supported by concrete piles
  • Construction method of a semi-rigid integral abutment bridge supported by concrete piles

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Embodiment Construction

[0028] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0029] Such as figure 2 As shown, a semi-rigid integral abutment bridge supported by concrete piles includes a bridge end beam 3, a pile cap 2 and a concrete pile 1 inserted into the ground surface as a supporting pile, and the weak axis of the concrete pile 1 is subjected to bending , and the end beam 3 adopts a semi-rigid connection structure. The semi-rigid connection structure refers to a connection structure in which neoprene rubber 5 is filled at the joint between the pile cap 2 and the end beam 3 , and the two are connected by the main reinforcement 6 in the concrete pile 1 . The semi-rigid connection structure between the pile body 2 and the end beam 3 increases the longitudinal deformation capacity of the bridge, increases the allowable bridge length...

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Abstract

The invention relates to a semi-rigid-joint integral type abutment bridge supported by a concrete pile and a construction method. The semi-rigid-joint integral type abutment bridge supported by the concrete pile comprises an end beam, a pile cap, and a concrete pile which is inserted into the earth surface to be used as a supporting pile; a weak shaft of the concrete pile body is bent to form a semi-rigid-joint structure with the end beam; the semi-rigid-joint structure is that neoprene fills in a joint seam of the pile cap and the end beam, and the pile cap and the end beam are connected through a main rib in the concrete pile; the longitudinal deformation capacity of the bridge is improved through the semi-rigid-joint structure between the pile body and the end beam, the allowable bridge length is increased, and therefore, a pile foundation is avoided cracking due to excessive large pulling stress, the damage of temperature deformation of the bridge to a pile body can be reduced, the vertical bearing capacity of the pile is ensured, and the service life of the bridge is prolonged.

Description

technical field [0001] The invention relates to a construction method of a semi-rigid integral abutment bridge supported by concrete piles, which belongs to the field of bridges. Background technique [0002] The horizontal and longitudinal displacements of the superstructure of integral abutment bridges caused by temperature and vehicle braking must be absorbed by the substructure, which is not suitable for abutments with rigid enlarged foundations. The overseas applications are mainly bridges with H-shaped steel pile caps. However, due to economic considerations in our country, the abutment foundations are mainly based on rigid enlarged foundations or concrete piles, and steel piles are rarely used. However, the horizontal deformation capacity of concrete piles is obviously lower than that of steel piles, and it is very easy to crack and cause corrosion of steel bars. [0003] In order to increase the lateral flexibility of concrete piles, some areas adopt the pre-drille...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/02E02D27/14
Inventor 庄一舟王胜智韩裕添陈云周泉
Owner FUZHOU UNIV
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