CN102852138A - Concrete pile - Google Patents
Concrete pile Download PDFInfo
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- CN102852138A CN102852138A CN2012103635784A CN201210363578A CN102852138A CN 102852138 A CN102852138 A CN 102852138A CN 2012103635784 A CN2012103635784 A CN 2012103635784A CN 201210363578 A CN201210363578 A CN 201210363578A CN 102852138 A CN102852138 A CN 102852138A
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Abstract
The invention discloses a concrete pile comprising a steel skeleton cage (3), a hollow concrete column body (1) formed by a concrete cast steel skeleton cage, protecting covers (4) which are arranged on both terminals of the concrete column body and at least one fastening steel bar (5) which is fixedly arranged on each protecting cover and is higher than the protecting cover; the steel skeleton cage comprises a steel bar (32) and a stirrup (31) which is used for fixing the steel bar (32), the exposed terminal of the fastening steel bar is of an expanded-terminal shape, and a special-shaped groove (11) is arranged in the outer surface of the concrete column body. The concrete pile has the following advantages that the friction force between a pile body and soil can be increased by more than 50%, so that the binding power of the pile body and the soil are ensured, the consumption of the pile is reduced effectively, and the construction cost is reduced. The quality of connection between the concrete pile body and a bearing platform foundation can be ensured, a reinforced concrete filled core in an inner cavity of the pile body is effectively prevented from being pulled out, so that the occurrence of an engineering safety accident is avoided and the engineering potential safety hazard is greatly reduced.
Description
Technical field
The present invention relates to a kind of concrete pile.
Background technology
Concrete pile is the most important part of building foundation, not only carries upper building, also need guarantee the stability of upper building.More concrete pile is applied in the various Foundation Designs in recent years.Because concrete pile is generally prefabrication or cast in situs, adopt vibratory drilling method or centrifugal process moulding.Present prefabricate concrete pile external surface smoother, lower with the frictional force of the soil body, cause Single Pile long partially long, thereby cause engineering high with the stake amount, cause construction costs higher.Difficult quality control, environmental pollution are large, molding cycle is long, comprehensive cost is more high and the concrete pile of cast in situs exists.
On the other hand, at present being connected of concrete pile and cushion cap foundation, post, beam adopts concrete to fill out the method for core after generally adopting concrete pile inner chamber insertion steel reinforcement framework cage again, because the inwall smoother of concrete pile, the adhesion strength of filling out core concrete and inwall is relatively poor, easily making steel concrete fill out core is pulled out, thereby cause concrete pile from cushion cap foundation, post, beam, to separate, thereby cause the workmanship security incident, cause huge life security and property loss.
Summary of the invention
For solving the problems of the technologies described above, the invention provides that a kind of external surface and soil body frictional force are large, fill out the concrete pile that core is not drawn out easily in the application process.
Technical scheme of the present invention is a kind of concrete pile, comprises steel reinforcement framework cage, the hollow concrete cylinder that is formed by concrete-placing reinforcing steel bar skeleton cage, is arranged on the protective jacket of concrete column two ends and is fixedly installed on the protective jacket and exceeds at least one fastening reinforcing bar of protective jacket; Described steel reinforcement framework cage comprises reinforcing bar and the fixing stirrup of reinforcing bar; The external surface of described concrete column is provided with special-shaped slot.
As a further improvement on the present invention, the termination of fastening reinforcing steel bars exposed is the expansion head.
As a further improvement on the present invention, fastening reinforcing bar and reinforcing bar are as a whole.Purpose reduces the processing technology step, saves cost.
As a further improvement on the present invention, described special-shaped slot is the projection shape.Increase the roughness of concrete pile external surface, so that strengthen with the frictional force of the soil body.
As a further improvement on the present invention, described special-shaped slot is the groove shape.Increase the roughness of concrete pile external surface, so that strengthen with the frictional force of the soil body.
As a further improvement on the present invention, the lateral cross section of described concrete column is circular or square-outside and round-inside shape or foreign side's inner polygon shape or the interior changeable shape of cylindrical.
As a further improvement on the present invention, the lateral cross section of described special-shaped slot is dome arcuation or protruding rectangular-shaped or protruding trapezoidal shape.
As a further improvement on the present invention, the lateral cross section of described special-shaped slot is recessed rectangular-shaped or recessed trapezoidal shape.
As a further improvement on the present invention, the two ends of described reinforcing bar is provided with solid muscle head; Gu the muscle head all links to each other with the protective jacket that is arranged on the concrete column two ends.Strengthen the cementability of concrete column and the soil body, so that bonding more firm, the enhancing in application life.
As a further improvement on the present invention, the described polygon that is shaped as of consolidating the muscle head.
The invention has the beneficial effects as follows:
1, utilizes frictional force that concrete pile of the present invention can improve pile body and the soil body more than 50%, guarantee the adhesion stress of pile body and the soil body, effectively saved the use amount of stake, saved construction costs.
2, utilize concrete pile of the present invention can guarantee the quality that the concrete pile body is connected with cushion cap foundation, effectively avoid the steel concrete of pile body inner chamber to fill out core and be pulled out, avoided the generation of engineering safety accident, greatly reduce engineering safety hidden danger.
3, utilize concrete pile of the present invention can improve anti-bending strength and shear resistance that the concrete pile body is connected with cushion cap foundation.
4, because concrete pile of the present invention is to produce in factory, and concrete strength reaches more than the C80, far above stake types such as cast-in-place concrete piles, pile quality is reliable, and bearing capacity of single pile is high, and anti-bending strength is good, convenient transportation, quick construction.
5, the present invention is applied widely, namely can be used for only bearing in the engineering of vertical compression load action, also can be used for bearing vertically pulling-resistant load action and bearing in the engineering of horizontal bending resistance load effect, and cost is lower than other pile foundation materials, such as cast-in-place concrete pile etc.
Show with observation by a plurality of field engineering practices, concrete pile of the present invention is feasible, significantly improves the frictional force of concrete pile body and the soil body, the danger of effectively having avoided the concrete pile body to extract from cushion cap foundation.The requirement that the pile foundation of finishing by method of attachment and structural element all satisfy engineering has improved safety of building greatly.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the structural representation of steel reinforcement framework cage of the present invention.
Fig. 5 is application implementation illustration of the present invention.
Wherein: 1, concrete column, 11, special-shaped slot, 3, steel reinforcement framework cage, 31, stirrup, 32, reinforcing bar, 322, solid muscle head, 4, protective jacket, 5, fastening reinforcing bar.
The specific embodiment
The present invention is further described for 1-Fig. 5 by reference to the accompanying drawings:
A kind of concrete pile of the present invention comprises that concrete column 1, steel reinforcement framework cage 3, stirrup 31, reinforcing bar 32, protective jacket 4, fastening reinforcing bar 5 are such as Fig. 1, Fig. 2, shown in Figure 3.
Stirrup 31 is twining reinforcing bar 32 and is forming steel reinforcement framework cage 3, and concrete-placing reinforcing steel bar skeleton cage 3 has formed concrete column 1; Concrete column 1 is hollow form; Protective jacket 4 is arranged on the two ends of concrete column 1; Fastening reinforcing bar 5 is fixedly mounted on the protective jacket 4 at two ends of concrete column 1, is provided with the installation chute on the protective jacket 4, so that fastening reinforcing bar 5 is installed on the protective jacket 4 easily.The termination that the exposed junction of fastening reinforcing bar 5 namely is not installed to the other end on the protective jacket 4 becomes to enlarge head.Be arranged to enlarge head and be when strengthening that in use the concrete pile body is connected with beam with cushion cap foundation, post, the core of filling out of concrete column is difficult for being pulled out, so that the concrete pile body be connected with cushion cap foundation, post and beam be connected more firm, long service life, safe.Fastening reinforcing bar 5 also can be made into one with reinforcing bar 32, waters the concrete column 1 that builds up so that the reinforcing bar 32 in the steel reinforcement framework cage 3 is given prominence to, and can effectively reduce the processing technology step like this, saves cost.The two ends of reinforcing bar 32 is provided with solid muscle head 322, Gu muscle head 322 all links to each other with protective jacket 4, the purpose that solid muscle head 322 is set strengthens the cementability of concrete column 1 and the soil body effectively.Gu the shape of muscle head 322 can be made into the polygon of arbitrary shape, can be quadrangle, pentagon and hexagon etc.; And its shape can also make other shapes such as mushroom, rib arcuation as shown in Figure 4.
The external surface of concrete column 1 is provided with special-shaped slot 11, and its cross section can be dome arcuation or protruding rectangular-shaped or protruding trapezoidal shape when special-shaped slot 11 was processed into the projection shape.Cross section is that body is circular-arc, and its radian is 1 ° ~ 180 °, and quantity is 1 ~ 100, and spacing is 5mm ~ 14000mm, and thickness is 5mm ~ 2000mm, and width is 5mm ~ 2000mm, with horizontal angle be 46 ° ~ 90 °.And special-shaped slot 11 also can be processed into the groove shape, and the shape of cross section of its groove is recessed rectangular-shaped or recessed trapezoidal shape etc.The lateral cross section of concrete column 1 can be other shapes such as changeable shape in circular, square-outside and round-inside shape, foreign side's inner polygon shape and the cylindrical.
A concrete Application Example of the present invention:
Concrete pile cross section of the present invention is cylindrical inner circle shape as shown in Figure 5, concrete pile body 1 long 15m, and the specification of the reinforcing bar 32 of steel reinforcement framework cage 3 is 12 diameter 10.7mm, and the external diameter of concrete pile body 1 is 520mm, and internal diameter is 290mm; The special-shaped slot 11 that the external surface of its concrete column arranges is the projection shape, and its special-shaped slot 11 cross sections are circular-arc, and radian is 150 °, and quantity is 30, and spacing is 400mm, and thickness is 50mm, and width is 50mm, with horizontal angle be 60 °; The length of fastening reinforcing bar 5 is 1m, and the quantity of fastening reinforcing bar 5 is 6.In use, when this concrete pile fixes with cushion cap, be that the fastening reinforcing bar 5 of 1m extend in the cushion cap and is provided with reinforcing bar simultaneously in the inner chamber of concrete pile body 1 with 6 length, utilize concrete to be arranged on to be provided with in the inner chamber of concrete pile body 1 reinforcing bar to build to form and fill out core and fastening reinforcing bar 5 is watered with cushion cap build up an integral body simultaneously.Thereby realized being connected of concrete pile and cushion cap.Concrete pile of the present invention is effectively avoided the steel concrete of pile body inner chamber to fill out core being pulled out, having avoided the generation of engineering safety accident, greatly reduce engineering safety hidden danger.
Claims (10)
1. a concrete pile is characterized in that: at least one fastening reinforcing bar (5) that comprises steel reinforcement framework cage (3), the hollow concrete cylinder (1) that is formed by concrete-placing reinforcing steel bar skeleton cage (3), is arranged on the protective jacket (4) of concrete column (1) two ends and is fixedly installed on protective jacket (4) upward and exceed protective jacket (4); Described steel reinforcement framework cage (3) comprises reinforcing bar (32) and the fixing stirrup (31) of reinforcing bar (32); The external surface of described concrete column (1) is provided with special-shaped slot (11).
2. concrete pile according to claim 1, it is characterized in that: the termination that fastening reinforcing bar (5) exposes is the expansion head.
3. concrete pile according to claim 1 is characterized in that: fastening reinforcing bar (5) is as a whole with reinforcing bar (32).
4. according to claim 1 and 2 or 3 described concrete piles, it is characterized in that: described special-shaped slot (11) is the projection shape.
5. according to claim 1 and 2 or 3 described concrete piles, it is characterized in that: described special-shaped slot (11) is the groove shape.
6. concrete pile according to claim 1 is characterized in that: the lateral cross section of described concrete column (1) be circular or square-outside and round-inside shape or foreign side's inner polygon shape or cylindrical in changeable shape.
7. concrete pile according to claim 4, it is characterized in that: the lateral cross section of described special-shaped slot (11) is dome arcuation or protruding rectangular-shaped or recessed trapezoidal shape.
8. concrete pile according to claim 5, it is characterized in that: the lateral cross section of described special-shaped slot (11) is recessed rectangular-shaped or recessed trapezoidal shape.
9. concrete pile according to claim 1, it is characterized in that: the two ends of described reinforcing bar (32) is provided with solid muscle head (322); Gu muscle head (322) all links to each other with the protective jacket (4) that is arranged on concrete column (1) two ends.
10. concrete pile according to claim 1 is characterized in that: the described polygon that is shaped as of consolidating muscle head (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210363578.4A CN102852138B (en) | 2012-09-26 | 2012-09-26 | Concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210363578.4A CN102852138B (en) | 2012-09-26 | 2012-09-26 | Concrete pile |
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| Publication Number | Publication Date |
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| CN102852138A true CN102852138A (en) | 2013-01-02 |
| CN102852138B CN102852138B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210363578.4A Active CN102852138B (en) | 2012-09-26 | 2012-09-26 | Concrete pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266595A (en) * | 2013-06-03 | 2013-08-28 | 建华建材（中国）投资有限公司 | Rigid pile for composite foundation treatment and production method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62215718A (en) * | 1986-03-14 | 1987-09-22 | Yukio Matsumoto | Tough pc pile |
| CN1560380A (en) * | 2004-02-27 | 2005-01-05 | 胡柏英 | Structure of precast rainforced concrete tubular pile and manufacture method thereof |
| CN102561339A (en) * | 2012-01-09 | 2012-07-11 | 盐城市双强管桩有限公司 | Reinforcement cage for prestressed concrete solid square pile and its manufacturing method |
| CN102677654A (en) * | 2012-05-14 | 2012-09-19 | 天津建城基业集团有限公司 | Rectangular prestressed high-strength concrete pile and forming mold thereof |
| CN202745042U (en) * | 2012-09-26 | 2013-02-20 | 句容长江建材有限公司 | Concrete pile |
-
2012
- 2012-09-26 CN CN201210363578.4A patent/CN102852138B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62215718A (en) * | 1986-03-14 | 1987-09-22 | Yukio Matsumoto | Tough pc pile |
| CN1560380A (en) * | 2004-02-27 | 2005-01-05 | 胡柏英 | Structure of precast rainforced concrete tubular pile and manufacture method thereof |
| CN102561339A (en) * | 2012-01-09 | 2012-07-11 | 盐城市双强管桩有限公司 | Reinforcement cage for prestressed concrete solid square pile and its manufacturing method |
| CN102677654A (en) * | 2012-05-14 | 2012-09-19 | 天津建城基业集团有限公司 | Rectangular prestressed high-strength concrete pile and forming mold thereof |
| CN202745042U (en) * | 2012-09-26 | 2013-02-20 | 句容长江建材有限公司 | Concrete pile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266595A (en) * | 2013-06-03 | 2013-08-28 | 建华建材（中国）投资有限公司 | Rigid pile for composite foundation treatment and production method thereof |
| CN103266595B (en) * | 2013-06-03 | 2016-02-24 | 建华建材（中国）投资有限公司 | A kind of rigid pile for complex ground treatment and production method thereof |
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| Publication number | Publication date |
|---|---|
| CN102852138B (en) | 2015-04-29 |
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Effective date of registration: 20160115 Address after: 212413 Jurong City, Jiangsu Province under the town along the Yangtze River Development Zone Patentee after: Jianhua building materials (Jiangsu) Co., Ltd. Address before: 212413 Hebei village, Shu Shu Town, Zhenjiang City, Jiangsu, Jurong Patentee before: Jurong Changjiang Building Material Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212413 the development zone along the Yangtze River in Xia Shu Town, Jurong City, Zhenjiang, Jiangsu Patentee after: Jianhua building materials (China) Co., Ltd. Address before: 212413 the development zone along the Yangtze River in Xia Shu Town, Jurong City, Zhenjiang, Jiangsu Patentee before: Jianhua building materials (Jiangsu) Co., Ltd. |