CN103628470A - Prefabricated variable cross-section reinforced concrete H-shaped pile - Google Patents
Prefabricated variable cross-section reinforced concrete H-shaped pile Download PDFInfo
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- CN103628470A CN103628470A CN201310584518.XA CN201310584518A CN103628470A CN 103628470 A CN103628470 A CN 103628470A CN 201310584518 A CN201310584518 A CN 201310584518A CN 103628470 A CN103628470 A CN 103628470A
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Abstract
The invention discloses a prefabricated variable cross-section reinforced concrete H-shaped pile which comprises a concrete pile body formed by pouring concrete. The concrete pile body comprises a rectangular pile tip segment, a variable cross-section connection segment, an H-shaped cross section pile segment and a pile shoe segment, wherein the rectangular pile tip segment, the variable cross-section connection segment, the H-shaped cross section pile segment and the pile shoe segment are connected in sequence from top to bottom. A reinforcing cage is arranged in the concrete pile body. The cross section of the rectangular pile tip segment of the concrete pile body is of a rectangular structure. The variable cross-section connection segment, the H-shaped cross section pile segment and the pile shoe segment of the concrete pile body are respectively composed of a web plate and flange plates located on the two sides of the web plate, wherein a cross section formed by connection of the flange plates and the web plate is of an H-shaped structure. A first reinforcing mesh sheet is arranged at the position, where the rectangular pile tip segment is located, of the reinforcing cage. According to the prefabricated variable cross-section reinforced concrete H-shaped pile, the strength of a pile head and the strength of a pile tip are enhanced, so that the anti-hammering capability and earth / rock entering capability of the pile body are improved; the phenomenon that the pile head or the pile tip is broken rarely occurs in the pile sinking process; construction is fast and economical, the shock resistance of the pile is enhanced, the weight of the pile is reduced, rebar and concrete are saved, and therefore the economic performance of the pile is further improved.
Description
Technical field
The invention belongs to civil works technical field, relate in particular to a kind of prefabricated variable cross-section reinforcement concrete h pile.
Background technology
At present, as the stake of foundation pile engineering, on market, have a variety of, if any pile tube, all kinds of square piles, castinplace pile etc., these stakes mainly contain the following shortcoming: the fragility of pile tube and prestress square pile is larger, shorter to time to rupture from there is cracking; Stake ductility is poor, when there is earthquake, causes moment building collapsing, makes personnel in building there is no sufficient time escape; Shear resistance is poor, makes building opposing horizontal applied force poor performance.Tradition square pile, tube-sinking cast-in-situ piles etc. show as, long construction period, pile quality is wayward, and steel using amount is large, and cost is high, and economy is poor.
Summary of the invention
The present invention is in order to solve weak point of the prior art, provides that a kind of manufacture craft is simple, bearing capacity of single pile is high, horizontal bending resistance cuts that performance is good, shock resistance strong, material-saving economy, apply the prefabricated variable cross-section reinforcement concrete h pile that threshold is low.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of prefabricated variable cross-section reinforcement concrete h pile, comprise the concrete pile body 1 that concreting is made, described concrete pile body 1 comprises the rectangular pile end section A from top to bottom connecting in turn, variable cross-section linkage section B, i shaped cross section pile cutoff C and shoe section D, in concrete pile body 1, be provided with reinforcing cage 2, reinforcing cage 2 consists of main muscle 2-1 and the stirrup 2-2 being located on main muscle 2-1, the rectangular structure of cross section of the rectangular pile end section A of concrete pile body 1, the variable cross-section linkage section B of concrete pile body 1, i shaped cross section pile cutoff C and shoe section D form by web 1-2 and the frange plate 1-1 that is positioned at web 1-2 both sides, the cross section that frange plate 1-1 and web 1-2 are connected to form is I-shaped structure, between frange plate 1-1 and web 1-2, form two groove 1-3 that opening is opposing, reinforcing cage 2-2 is upper is provided with the first reinforced mesh 6 at rectangular pile end section A place, the length of rectangular pile end section A be i shaped cross section pile cutoff C frange plate 1-1 length 2-5 doubly.
The angle of the web 1-2 of described i shaped cross section pile cutoff C and frange plate 1-1 junction is greater than 90o and is less than 135o.
The spacing of described reinforcing cage 2 two ends stirrup 2-2 is less than the spacing of reinforcing cage 2 middle part stirrup 2-2, and the spacing of reinforcing cage 2 two ends stirrup 2-2 is 50-100mm, and the spacing of reinforcing cage 2 middle part stirrup 2-2 is 100-200mm.
The frange plate 1-1 of described shoe section D and web 1-2 shrink to middle part and form pile top 3 gradually from top to bottom.
The thickness of the web 1-2 of the variable cross-section linkage section B of described concrete pile body 1 is reduced to the thickness of the web 1-2 of i shaped cross section pile cutoff C from top to bottom gradually.
The first reinforced mesh 6 in described rectangular pile end section A is 1-3 layer along the number of plies of concrete pile body 1 length direction setting.
It is 1-3 layer along the number of plies of concrete pile body 1 length direction setting that described i shaped cross section pile cutoff C is provided with the second reinforced mesh 4, the second reinforced mesh 4 on the reinforcing cage 2-2 that closes on shoe section D.
Described concrete pile body 1 is provided with suspension ring 5 in i shaped cross section pile cutoff C section.
Adopt technique scheme, the present invention is owing to setting up reinforced mesh on the reinforcing cage of complete section of rectangular pile end section and i shaped cross section pile cutoff bottom, so just increase the intensity of pile crown and pile top, improved the anti-hammering ability of pile body and (the entering rock) ability of burying.In pile driving process, seldom there is pile crown, pile top Fragmentation Phenomena, quick construction, economy.Owing to arranging along building length direction, improved the shock resistance of stake in addition in laying out pile.Major part i shaped cross section pile cutoff due to stake adopts I-shaped cross-section again, has reduced deadweight, has saved reinforcing bar and concrete, has further improved this economic performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is E-E profile in Fig. 1;
Fig. 3 is F-F profile in Fig. 1;
Fig. 4 is G-G profile in Fig. 1;
Fig. 5 is H-H profile in Fig. 1.
The specific embodiment
As shown in Fig. 1～Fig. 5, a kind of prefabricated variable cross-section reinforcement concrete h pile of the present invention, comprise the concrete pile body 1 that concreting is made, described concrete pile body 1 comprises the rectangular pile end section A from top to bottom connecting in turn, variable cross-section linkage section B, i shaped cross section pile cutoff C and shoe section D, in concrete pile body 1, be provided with reinforcing cage 2, reinforcing cage 2 consists of main muscle 2-1 and the stirrup 2-2 being located on main muscle 2-1, the rectangular structure of cross section of the rectangular pile end section A of concrete pile body 1, the variable cross-section linkage section B of concrete pile body 1, i shaped cross section pile cutoff C and shoe section D form by web 1-2 and the frange plate 1-1 that is positioned at web 1-2 both sides, the cross section that frange plate 1-1 and web 1-2 are connected to form is I-shaped structure, between frange plate 1-1 and web 1-2, form two groove 1-3 that opening is opposing, reinforcing cage 2-2 is upper is provided with the first reinforced mesh 6 at rectangular pile end section A place, the length L of rectangular pile end section A be i shaped cross section pile cutoff C frange plate 1-1 length 2-5 doubly.
The angle α of the web 1-2 of i shaped cross section pile cutoff C and frange plate 1-1 junction is greater than 90o and is less than 135o.When guaranteeing like this concrete pile body 1 intensity, fully reduce material usage.
The spacing of reinforcing cage 2 two ends stirrup 2-2 is less than the spacing of reinforcing cage 2 middle part stirrup 2-2, and the spacing of reinforcing cage 2 two ends stirrup 2-2 is 50-100mm, and the spacing of reinforcing cage 2 middle part stirrup 2-2 is 100-200mm.The reinforcing cage 2 of different densities is set according to the difference of sectional area like this, fully improves the intensity of concrete pile body 1.
The frange plate 1-1 of shoe section D and web 1-2 shrink to middle part and form pile top 3 gradually from top to bottom.Like this can more smooth and easy underground pile operation.When lower operation, can arrange and protect steel plate on shoe section D surface, can avoid like this shoe section D to damage in the time of lower and affect smooth lower.
The thickness of the web 1-2 of the variable cross-section linkage section B of concrete pile body 1 is reduced to the thickness of the web 1-2 of i shaped cross section pile cutoff C from top to bottom gradually.Variable cross-section linkage section B plays the effect that transition connects, and is the stress concentration phenomenon of avoiding rectangular pile end section A and i shaped cross section pile cutoff C directly to join and produce.
The first reinforced mesh 6 in rectangular pile end section A is 1-3 layer along the number of plies of concrete pile body 1 length direction setting.
It is 1-3 layer along the number of plies of concrete pile body 1 length direction setting that i shaped cross section pile cutoff C is provided with the second reinforced mesh 4, the second reinforced mesh 4 on the reinforcing cage 2-2 that closes on shoe section D.
Rectangular pile end section A, variable cross-section linkage section B, i shaped cross section pile cutoff C and the shoe section D of the concrete pile body 1 in the middle of the present invention are integrated fluid concrete and form.The number of plies of the first reinforced mesh 6 and the second reinforced mesh 4 is according to the sectional dimension setting of concrete pile body 1.
The present invention is owing to setting up respectively the first reinforced mesh 6 and the second reinforced mesh 4 on the reinforcing cage 2 of complete section of rectangular pile end section A and i shaped cross section pile cutoff C bottom, so just increased rectangular pile end section A(pile crown) and shoe section D(pile top) intensity, improved the anti-hammering ability of pile body and (the entering rock) ability of burying.In pile driving process, seldom there is pile crown, pile top Fragmentation Phenomena, quick construction, economy.Owing to arranging along building length direction, improved the shock resistance of stake in addition in laying out pile.Major part i shaped cross section pile cutoff C due to stake adopts I-shaped cross-section again, has reduced deadweight, has saved reinforcing bar and concrete, has further improved this economic performance.
Above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineers and technicians in this area make the technical scheme of invention, all should fall in the definite protection domain of claims of the present invention.
Claims (8)
1. a prefabricated variable cross-section reinforcement concrete h pile, comprise the concrete pile body (1) that concreting is made, it is characterized in that: described concrete pile body (1) comprises the rectangular pile end section (A) from top to bottom connecting in turn, variable cross-section linkage section (B), i shaped cross section pile cutoff (C) and shoe section (D), in concrete pile body (1), be provided with reinforcing cage (2), reinforcing cage (2) is by main muscle (2-1) and be located at stirrup (2-2) formation on main muscle (2-1), the rectangular structure of cross section of the rectangular pile end section (A) of concrete pile body (1), the variable cross-section linkage section (B) of concrete pile body (1), i shaped cross section pile cutoff (C) and shoe section (D) form by web (1-2) and the frange plate (1-1) that is positioned at web (1-2) both sides, the cross section that frange plate (1-1) and web (1-2) are connected to form is I-shaped structure, between frange plate (1-1) and web (1-2), form two grooves (1-3) that opening is opposing, reinforcing cage (2-2) is upper locates to be provided with the first reinforced mesh (6) in rectangular pile end section (A), the length of rectangular pile end section (A) be i shaped cross section pile cutoff (C) frange plate (1-1) length 2-5 doubly.
2. a kind of prefabricated variable cross-section reinforcement concrete h pile according to claim 1, is characterized in that: the angle of the web (1-2) of described i shaped cross section pile cutoff (C) and frange plate (1-1) junction is greater than 90o and is less than 135o.
3. a kind of prefabricated variable cross-section reinforcement concrete h pile according to claim 1, it is characterized in that: the spacing of described reinforcing cage (2) two ends stirrups (2-2) is less than the spacing of reinforcing cage (2) middle part stirrup (2-2), the spacing of reinforcing cage (2) two ends stirrups (2-2) is 50-100mm, and the spacing of reinforcing cage (2) middle part stirrup (2-2) is 100-200mm.
4. a kind of prefabricated variable cross-section reinforcement concrete h pile according to claim 1, is characterized in that: the frange plate (1-1) of described shoe section (D) and web (1-2) shrink to middle part and form pile top (3) gradually from top to bottom.
5. a kind of prefabricated variable cross-section reinforcement concrete h pile according to claim 1, is characterized in that: the thickness of the web (1-2) of the variable cross-section linkage section (B) of described concrete pile body (1) is reduced to the thickness of the web (1-2) of i shaped cross section pile cutoff (C) from top to bottom gradually.
6. according to a kind of prefabricated variable cross-section reinforcement concrete h pile described in claim 1 any one, it is characterized in that: the first reinforced mesh (6) in described rectangular pile end section (A) is 1-3 layer along the number of plies of concrete pile body (1) length direction setting.
7. according to a kind of prefabricated variable cross-section reinforcement concrete h pile described in claim 1-6 any one, it is characterized in that: described i shaped cross section pile cutoff (C) is provided with the second reinforced mesh (4) closing on the reinforcing cage (2-2) of shoe section (D), and the second reinforced mesh (4) is 1-3 layer along the number of plies of concrete pile body (1) length direction setting.
8. according to a kind of prefabricated variable cross-section reinforcement concrete h pile described in claim 1-6 any one, it is characterized in that: described concrete pile body (1) is provided with suspension ring (5) in i shaped cross section pile cutoff (C) section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310584518.XA CN103628470A (en) | 2013-11-20 | 2013-11-20 | Prefabricated variable cross-section reinforced concrete H-shaped pile |
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| CN201310584518.XA CN103628470A (en) | 2013-11-20 | 2013-11-20 | Prefabricated variable cross-section reinforced concrete H-shaped pile |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220702A (en) * | 2015-10-10 | 2016-01-06 | 上海市政工程设计研究总院（集团）有限公司 | A kind of flood-control wall I shape precast concrete pile foundation |
| CN105804053A (en) * | 2016-05-05 | 2016-07-27 | 上海大禺预制构件有限公司 | Performance-improved sheet pile shaped like Chinese character 'ji' |
| CN105862876A (en) * | 2016-05-19 | 2016-08-17 | 邱树贵 | Concrete continuous pile, concrete continuous pile wall and construction method of concrete continuous pile wall |
| WO2021042764A1 (en) * | 2019-09-04 | 2021-03-11 | 周兆弟 | Concrete variable cross-section prefabricated square pile |
| WO2021154065A1 (en) * | 2020-01-30 | 2021-08-05 | Estructuras Metálicas De Puebla S.A. De C.V. | Prefabricated metal and concrete piles |
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| JP2005023569A (en) * | 2003-06-30 | 2005-01-27 | Ps Mitsubishi Construction Co Ltd | H-shaped concrete pile |
| CN201031389Y (en) * | 2007-04-25 | 2008-03-05 | 严平 | Prefabricated reinforced concrete T shaped I-shaped anti-side-force pile |
| CN202559335U (en) * | 2012-05-16 | 2012-11-28 | 严平 | Prefabrication reinforced concrete lateral-force-resisting pile connecting mechanism |
| CN202730749U (en) * | 2012-08-21 | 2013-02-13 | 孔超 | Prefabricated reinforced concrete H-shaped support pile |
| CN103174168A (en) * | 2011-12-26 | 2013-06-26 | 温州长城基础工程公司 | Cast-in-place H-shaped reinforced concrete and cement soil alternative underground continuous wall and construction method thereof |
| CN103276726A (en) * | 2013-05-02 | 2013-09-04 | 江苏鼎达建筑新技术有限公司 | Pre-tensioning-method I-shaped supporting pile and manufacturing method thereof |
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2013
- 2013-11-20 CN CN201310584518.XA patent/CN103628470A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005023569A (en) * | 2003-06-30 | 2005-01-27 | Ps Mitsubishi Construction Co Ltd | H-shaped concrete pile |
| CN201031389Y (en) * | 2007-04-25 | 2008-03-05 | 严平 | Prefabricated reinforced concrete T shaped I-shaped anti-side-force pile |
| CN103174168A (en) * | 2011-12-26 | 2013-06-26 | 温州长城基础工程公司 | Cast-in-place H-shaped reinforced concrete and cement soil alternative underground continuous wall and construction method thereof |
| CN202559335U (en) * | 2012-05-16 | 2012-11-28 | 严平 | Prefabrication reinforced concrete lateral-force-resisting pile connecting mechanism |
| CN202730749U (en) * | 2012-08-21 | 2013-02-13 | 孔超 | Prefabricated reinforced concrete H-shaped support pile |
| CN103276726A (en) * | 2013-05-02 | 2013-09-04 | 江苏鼎达建筑新技术有限公司 | Pre-tensioning-method I-shaped supporting pile and manufacturing method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220702A (en) * | 2015-10-10 | 2016-01-06 | 上海市政工程设计研究总院（集团）有限公司 | A kind of flood-control wall I shape precast concrete pile foundation |
| CN105804053A (en) * | 2016-05-05 | 2016-07-27 | 上海大禺预制构件有限公司 | Performance-improved sheet pile shaped like Chinese character 'ji' |
| CN105804053B (en) * | 2016-05-05 | 2017-11-17 | 上海大禺预制构件有限公司 | A few font sheet piles of improved properties |
| CN105862876A (en) * | 2016-05-19 | 2016-08-17 | 邱树贵 | Concrete continuous pile, concrete continuous pile wall and construction method of concrete continuous pile wall |
| WO2021042764A1 (en) * | 2019-09-04 | 2021-03-11 | 周兆弟 | Concrete variable cross-section prefabricated square pile |
| JP2022546810A (en) * | 2019-09-04 | 2022-11-09 | 兆弟 周 | Concrete Variable Section Precast Square Pile |
| JP7223474B2 (en) | 2019-09-04 | 2023-02-16 | 兆弟 周 | Concrete Variable Section Precast Square Pile |
| WO2021154065A1 (en) * | 2020-01-30 | 2021-08-05 | Estructuras Metálicas De Puebla S.A. De C.V. | Prefabricated metal and concrete piles |
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Application publication date: 20140312 |