CN201420262Y

CN201420262Y - Circular solid preload-stress concrete tubular pile

Info

Publication number: CN201420262Y
Application number: CN2008202295233U
Authority: CN
Inventors: 陈子成
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-23
Filing date: 2008-12-23
Publication date: 2010-03-10
Anticipated expiration: 2018-12-23

Abstract

The utility model relates to a concrete tubular pile, in particular to a circular solid preload-stress concrete tubular pile, which comprises a solid concrete pile body and a steel reinforcement cagewhich is embedded inside the pile body, wherein the head part on two ends of the concrete pile body is provided with an end apron plate, the steel reinforcement cage is formed by binding a plurality of preload-stress main bars with equal length and helical bars, the preload-stress main bars are uniformly distributed on the position which is close to the outer wall of the concrete pile body with the central line of the concrete pile body as the axis, the helical bars are uniformly wound at the outer side of the main bars with the central line of the concrete pile body as the axis, and the thickness of a concrete protection layer of the steel reinforcement cage inside the concrete pile body is 45 to 50 mm. The circular solid preload-stress concrete tubular pile has the advantages of better cracking resistance and anti-seismic performance as well as strong corrosion resistance.

Description

The circular solids prestressed concrete pipe pile

[technical field]

The utility model relates to the concrete tubular pile that uses in a kind of building foundation, particularly a kind of circular solids prestressed concrete pipe pile.

[background technology]

The structure of traditional prestressed concrete pipe pile, be generally hollow annular prestressed concrete, the structure of " Pretensioned spun concrete piles " described in State Standard of the People's Republic of China [GB13476-1999], on this pile tube is evenly arranged in vertically by some prestressing force master muscle, then in main muscle outer felt after external spiral tendon is made reinforcing cage, looping concrete tubular pile behind the concreting again.But, adopt the structure of above-mentioned Pretensioned spun concrete piles, owing to be annular hollow tubular product, it is low to have the side direction breaking resistance, and promptly the shortcoming of poor seismic behavior is meeting macadam, the harder geological conditions of soil such as cobble layer and weathered rock formation, anti-penetration capacity is low, and this pile tube connector adopts the Q235 steel plate to connect simultaneously, when meeting corrosive ground, without any anti-corrosion measure, corrosion causes broken pile easily, influences application life.

[utility model content]

The purpose of this utility model is to provide a kind of have better cracking resistance and anti-seismic performance, has the circular solids prestressed concrete pipe pile of strong corrosion resistance again.

A kind of circular solids prestressed concrete pipe pile; comprise solid concrete pile body and be imbedded in the interior reinforcing cage of pile body; the two ends head of described concrete pile body is provided with the end skirtboard; described reinforcing cage is made of some isometric prestressing force master muscle and spiral bar colligation; described prestressing force master muscle serves as that axle is evenly distributed on the outer wall position near the concrete pile body with concrete body of rod center line; spiral bar serves as that axle twines the outside that is distributed in main muscle equably with concrete pile body center line also, and the thickness of the concrete cover of reinforcing cage is 45-50mm in the described concrete pile body.

Wherein, described main muscle is the high tensile steel wire of 6-18 root φ 10.7mm.

Described spiral bar is provided with length at the both ends of concrete tubular pile be the 1500mm encrypted area, and its arrangement of reinforcement is φ 4.0@50mm or φ 5.0@50mm, and all the other position arrangements of reinforcement are φ 4.0@100mm or φ 5.0@100mm.

Described end skirtboard is made up of steel end plate and skirtboard, and wherein the steel end plate is a H type stainless steel, and its thickness is 18mm, and stainless steel skirtboard width is 150mm, and thickness is 1.2mm.

The utility model structurally with concrete tubular pile in the prior art by hollow ring-like change into solid round; and enhancing arrangement of reinforcement; improve reinforcement ratio 30-50%; thickening pile tube two ends steel plate thickness; changing pile tube two ends skirtboard is stainless steel material; on technology, increase vertical vibrating grouting; the operation of secondary centrifuging; and when construction, increase the joint anti-corrosion material; increase the stainless steel cuff, the protection anti-corrosion material does not lose, and above-mentioned improvement has improved pile tube cracking resistance and anti-seismic performance greatly; have strong corrosion resistance again, compare with structure in the past and have following advantage:

1, owing to the raising of cracking resistance and anti-seismic performance, the scope of application that enlarges prestressed concrete pipe pile is simple in structure, and manufacturing is easier;

2, can improve basic antidetonation and antiseptic effect, pile foundation is prolonged more than 2 times application life;

3,, save the duration more than 50% than other type bases 30-50% that reduces expenses.

[description of drawings]

In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.

Fig. 1 is the sectional structure schematic diagram of an embodiment of circular solids prestressed concrete pipe pile of the present utility model.

Fig. 2 is the A-A cross section structure schematic diagram of the circular solids prestressed concrete pipe pile of Fig. 1.

Fig. 3 is the technological process of production figure of Circular prestressed concrete pole of the present utility model.

[specific embodiment]

See also Fig. 1; it is the cross-sectional view of an embodiment of circular solids prestressed concrete pipe pile of the present utility model; a kind of circular solids prestressed concrete pipe pile; comprise solid concrete pile body 1 and the reinforcing cage that is imbedded in the pile body 1; the two ends head of described concrete pile body 1 is provided with end skirtboard 2; described reinforcing cage is made of some isometric prestressing force master muscle 3 and spiral bar 4 colligations; described prestressing force master muscle 3 serves as that axle is evenly distributed on the outer wall position near concrete pile body 1 with the center line of concrete pile body 1; spiral bar 4 serves as that axle twines the outside that is distributed in prestressing force master muscle 3 equably with concrete pile body 1 center line also, and the thickness of the concrete cover of reinforcing cage is 45-50mm in the described concrete pile body 1.

Wherein, described prestressing force master muscle 3 is that the high tensile steel wire stretch-draw by 6 φ 10.7mm forms, and described spiral bar 4 is provided with length at the both ends of concrete tubular pile be the 1500mm encrypted area, and its arrangement of reinforcement is φ 4.0@50mm; The arrangement of reinforcement at all the other no encrypted area positions is φ 4.0@100mm, and described end skirtboard 2 is made up of steel end plate 21 and skirtboard 22, and wherein steel end plate 21 is a H type stainless steel, and its thickness is 18mm, and skirtboard 22 width are 150mm, and thickness is 1.2mm.

Seeing also Fig. 3, is the technological process of production figure of circular solids prestressed concrete pipe pile of the present utility model, and its main step is as follows:

1,, behind main muscle heading, compiles cage with spiral bar through colligation after the roll welding simultaneously with making main muscle after high tensile steel wire straightening, fixed length, the shearing;

2, be ready to the steel end plate simultaneously, and install anticorrosion stainless steel skirtboard;

3, behind cleaning mould and the first-class release agent, with reinforcing cage, steel end plate and stainless steel skirtboard assembling progressive die;

4, behind the matched moulds main muscle is carried out stretch-draw and become prestressing force master muscle;

5, the proportioning that will prepare burden by design stirs, make the concrete that needs after, carry out compression test, carry out high-potting again after qualified, the vertical vibrating feeding is carried out in qualified back in mould;

6, behind centrifugal forming, carry out the secondary centrifuging moulding behind the secondary filler again, carry out stream curing again;

7, can the demoulding after the intensity for the treatment of the concrete pile body meets the requirements, stamp sign and check, the qualified chapter of qualified bonnet;

8, carry out again going out still after the steam curing at high pressure, obtain finished product.

9, carry out pile tube storage, the carrying of then dispatching from the factory through storing the carrying warehouse-in.

Described spiral bar is provided with length at the both ends of concrete tubular pile be the 1500mm encrypted area, and its arrangement of reinforcement is φ 4.0@50mm or φ 5.0@50mm, and the arrangement of reinforcement at all the other no encrypted area positions is φ 4.0@100mm or φ 5.0@100mm.

Described end skirtboard is made up of steel end plate and skirtboard, and wherein the steel end plate is a H type stainless steel, and its thickness is 18mm, and the skirtboard width is 150mm, and thickness is 1.2mm.

In the utility model, according to the different brackets specifications vary of pile tube, the quantity of its prestressing force master muscle, spiral bar and configuration also correspondingly change, and according to the variation of different brackets specification, its concrete design parameters is as follows:

Claims

1; a kind of circular solids prestressed concrete pipe pile; it is characterized in that: comprise solid concrete pile body and be imbedded in the interior reinforcing cage of pile body; the two ends head of described concrete pile body is provided with the end skirtboard; described reinforcing cage is made of some isometric prestressing force master muscle and spiral bar colligation; described prestressing force master muscle serves as that axle is evenly distributed on the outer wall position near the concrete pile body with concrete body of rod center line; spiral bar serves as that axle twines the outside that is distributed in main muscle equably with concrete pile body center line also, and the thickness of the concrete cover of reinforcing cage is 45-50mm in the described concrete pile body.

2, circular solids prestressed concrete pipe pile according to claim 1 is characterized in that: described main muscle is the high tensile steel wire of 6-18 root φ 10.7mm.

3, circular solids prestressed concrete pipe pile according to claim 1, it is characterized in that: described spiral bar is provided with length at the both ends of concrete tubular pile be the 1500mm encrypted area, its arrangement of reinforcement is φ 4.0@50mm or φ 5.0@50mm, and the arrangement of reinforcement at all the other no encrypted area positions is φ 4.0@100mm or φ 5.0@100mm.

4, circular solids prestressed concrete pipe pile according to claim 1 is characterized in that: described end skirtboard is made up of steel end plate and skirtboard, and wherein the steel end plate is a H type stainless steel, and its thickness is 18mm, and the skirtboard width is 150mm, and thickness is 1.2mm.