Fabricated concrete-filled steel tube pile foundation and construction method thereof

Abstract

The invention relates to a fabricated concrete-filled steel tube pile foundation and a construction method thereof. The fabricated concrete-filled steel tube pile foundation includes a bearing platform, wherein a support pile for supporting the bearing platform is arranged under the bearing platform; and a support column extending upwards is arranged at the upper end of the bearing platform. The support pile has high bearing capacity and is not prone to cracking and breaking; the adverse effect of large-capacity concrete of a traditional bearing platform is effectively reduced; the modular production is adopted, so that the installation is convenient; the processing quality is good; and the construction period is short.

Description

technical field [0001] The invention relates to an assembled steel pipe concrete pile foundation and a construction method thereof. Background technique [0002] Pile foundations are mostly used in high-rise building structures, and pile foundations are deep foundations composed of piles and pile caps (referred to as caps) connected to the pile tops. The types of piles include prefabricated piles and cast-in-place piles. Prefabricated piles have the advantages of high bearing capacity, firmness and durability, and fast construction speed, so they are widely used in building structures and bridge structures. The current prefabricated piles mainly include concrete square piles, prestressed concrete pipe piles and steel piles. However, the above prefabricated piles still have the following problems in actual use: 1) concrete square piles and prestressed concrete pipe piles are prone to pile breakage during transportation and construction, and the maintenance cost is high; 2) t...

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Problems solved by technology

However, the above prefabricated piles still have the following problems in actual use: 1) concrete square piles and prestressed concrete pipe piles are prone to pile breakage during transportation and construction, and the maintenance cost is high; 2) the steel piles used for steel piles large amount

However, there are also the following problems in the actual use of cast-in-place reinforced concrete caps: 1) The concrete is poured on site, which is greatly affected by weather, construction conditions and the quality of workers, and the pouring quality is not easy to guarantee; 2) It is easy to pour large-volume concrete Expansion deformation and temperature stress are generated, resulting in concrete cracking; 3) There are many construction procedures and a long construction period

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