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H-shaped steel and concrete composite pile and construction method thereof

A technology of H-shaped steel and concrete, which is applied in sheet pile walls, foundation structure engineering, construction, etc., to achieve the effects of convenient construction, cost saving and simple structure

Inactive Publication Date: 2017-03-08
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of H-shaped steel and concrete composite piles is beneficial to improve the horizontal bearing capacity of existing pile foundations

Method used

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  • H-shaped steel and concrete composite pile and construction method thereof
  • H-shaped steel and concrete composite pile and construction method thereof
  • H-shaped steel and concrete composite pile and construction method thereof

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as Figure 1~3 As shown, a kind of composite pile that adopts H-shaped steel and concrete in the present embodiment includes an H-shaped steel 1, two channel steels 2, closed steel plates 3, two pairs of vertical steel bars 4 and nuts 6, some screw rods 5, H There are bolt openings 8 at the web and flange of the shaped steel pile, and there is a channel steel 2 perpendicular to the web, the long side of which is slightly shorter than the web length of the H-shaped steel 1, and the leg width is 1-2 cm smaller than the flange , and embedded in the web groove of H-shaped steel 1, the channel steel 2 is fixed on the H-shaped steel plate 1 through bolt connection, its notch is sealed by a closed steel plate 3, and placed vertically in the channel steel 2 Rebar 4, then concrete 7.

[0028] The bottom surfaces of the two channe...

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Abstract

The invention provides an H-shaped steel and concrete composite pile and a construction method thereof. The H-shaped steel and concrete composite pile is characterized by comprising an H-shaped steel and two channel steels fixed in openings on two sides of the H-shaped steel and with opposite notches; closed steel plates are arranged in the notches of the two channel steels; and concrete is poured in cavities formed by the notches of the two channel steels and the closed steel plates. The H-shaped steel and concrete composite pile is simple and practical in structural design, fully combines respective advantages of the steels and the concrete materials, reduces self weight through use of the steels, and improves horizontal bearing capacity; meanwhile, as the concrete is filled in the steel pile, on the one hand, the geometric stability of the inner wall of the H-shaped steel can be enhanced to delay or prevent local buckling so as to improve the bearing capacity; and on the other hand, because of restraint of the steels to the concrete, the concrete is located in a three-way stress strain state, the generation and the development of longitudinal micro cracks are delayed, and the compressive strength and the compressive deformation capacity are improved.

Description

[0001] Technical field: [0002] The invention relates to a combined pile using H-shaped steel and concrete and a construction method thereof. [0003] Background technique: [0004] At present, the pile foundations used in most projects in my country are reinforced concrete pile foundation structures. The vertical bearing capacity of concrete piles is very high, but its horizontal bearing capacity is very low compared to the vertical bearing capacity. Wharf pile foundations, pile foundations under earthquake loads, retaining wall pile foundations that bear the horizontal thrust generated by bulldozing, etc., all require piles to have a high horizontal bearing capacity. Under the horizontal force of the concrete pile foundation, the concrete in the compression zone is easy to crack, which will cause structural damage: for the H-shaped steel pile widely used abroad, although it can withstand large horizontal loads, it is difficult to drive it into the ground. During the proces...

Claims

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Application Information

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IPC IPC(8): E02D5/20
CPCE02D5/20E02D2200/165
Inventor 庄一舟李增锋杨芳芳龙腾飞
Owner FUZHOU UNIV
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