Concrete filled steel tube composite pile foundation and construction method

A technology of steel pipe concrete and construction methods, which can be applied to foundation structure engineering, sheet pile walls, buildings, etc., can solve the problems of poor horizontal bearing capacity and ductility, difficult construction, high cost, etc., and achieve high bearing capacity, convenient construction, and structural Good shock resistance effect

Active Publication Date: 2018-12-18
山西省交通科技研发有限公司
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Problems solved by technology

For example, reinforced concrete pile foundation is easy to construct and economical, but its horizontal bearing capacity and ductility are poo

Method used

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  • Concrete filled steel tube composite pile foundation and construction method
  • Concrete filled steel tube composite pile foundation and construction method
  • Concrete filled steel tube composite pile foundation and construction method

Examples

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[0032] See figure 1 , The present invention provides a steel tube concrete mixed pile foundation, which includes a steel tube concrete structure pile and a reinforced concrete structure pile; the steel tube concrete structure pile and the reinforced concrete structure pile are sequentially connected from top to bottom to form an integral pile foundation; The concrete-filled steel tube structure pile is placed above the zero point of the bending moment of the integral pile foundation; the reinforced concrete structure pile is placed below the zero point of the bending moment of the integral pile foundation; the grade of the concrete filled in the reinforced concrete structure pile is lower than the concrete filled in the concrete-filled steel tube structure pile The label.

[0033] among them:

[0034] The concrete-filled steel pipe structural pile includes equal-diameter steel pipe 1, reduced-diameter steel pipe 2, and increased-diameter steel pipe 3; equal-diameter steel pipe 1 is...

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Abstract

The invention belongs to the technical field of bridge pile foundation engineering and relates to a concrete filled steel tube composite pile foundation and a construction method. The concrete filledsteel tube composite pile foundation comprises a concrete filled steel tube structural pile and a reinforced concrete structural pile. The concrete filled steel tube structural pile and the reinforcedconcrete structural pile are connected from top to bottom in sequence to form an integral pile foundation. The concrete filled steel tube structural pile is located above the zero point of the bending moment of the integral pile foundation. The reinforced concrete structural pile is located below the zero point of the bending moment of the integral pile foundation. The mark of concrete filled upin the reinforced concrete structural pile is lower than that of concrete filled up in the integral pile foundation. The concrete filled steel tube composite pile foundation and the construction method provided by the invention have the advantages that construction is convenient, the anti-seismic performance is good, the bearing capacity is high, and the construction difficulty and the construction cost can be lowered.

Description

technical field [0001] The invention belongs to the technical field of bridge pile foundation engineering, and relates to a steel pipe concrete mixed pile foundation and a construction method, in particular to a mixed structure pile foundation in which a steel pipe concrete member and a reinforced concrete member are combined to be stressed together and a construction method thereof. Background technique [0002] In areas with high seismic fortification intensity, especially in bridge projects with deep water, large scour hydrological conditions and weak stratum geological conditions, pile foundations, as an important part of bridge engineering, have extremely high requirements for seismic performance. The superstructure loads are efficiently transferred to the foundation and also resist the horizontal loads caused by earthquakes. The pile foundation is located underwater or underground, and it is extremely difficult to repair once it is damaged. [0003] At present, bridge...

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Application Information

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IPC IPC(8): E02D27/12E02D5/38
CPCE02D5/38E02D27/12
Inventor 季建东陈安洋王彬李保俊张科峰臧博韩锋杨坤肖玮罗强刘秀珍刘志华李卓然
Owner 山西省交通科技研发有限公司
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