CN104895068A - Variable-cross-section pile with end plates - Google Patents
Variable-cross-section pile with end plates Download PDFInfo
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- CN104895068A CN104895068A CN201510311637.7A CN201510311637A CN104895068A CN 104895068 A CN104895068 A CN 104895068A CN 201510311637 A CN201510311637 A CN 201510311637A CN 104895068 A CN104895068 A CN 104895068A
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Abstract
The invention belongs to the technical field of prefabricated components in the building industry, and relates to a variable-cross-section pile with end plates. The variable-cross-section pile comprises a pile body, a steel reinforcement cage is arranged in the pile body, the steel reinforcement cage comprises a plurality of vertical steel bars and a spiral-shaped spiral steel bar fixedly connected with the vertical steel bars, the pile body comprises a plurality of large-cross-section piles and small-cross-section piles mutually connected, two ends of the pile are respectively provided with an end plate, a plurality of tension nuts are fixedly in the end plates, two ends of the vertical steel bars are provided with pier heads whose external diameter is greater than the external diameter of the vertical steel bars, the pier heads are positioned in the tension nuts and can be clamped by the tension nuts, sidewalls of the tension nuts are also communicated with clamping holes, and the clamping holes are positioned on the end plates. According to the variable-cross-section pile, the connection of the pile body is firm, and the installation is convenient.
Description
Technical field
The invention belongs to building trade prefabricated component technical field, relate to a kind of preformed pile, particularly relate to a kind of non-uniform pile having end plate.
Background technology
Because the quality stability of tube-sinking cast-in-situ pile is relatively poor, in recent years, precast prestressed concrete stake obtains swift and violent development.In piling process, will need according to different the stake selecting different length, this just needs between stake and stake by being interconnected the pile body forming longer length.
Connection between existing pile body arranges metal end plate by the two ends at pile body, when two pile bodies need to connect, connected by the end plate welding two pile bodies, welding job is wasted time and energy, connect inconvenient, in addition, weld, easily by the chlorine salt corrosion in soil, causes the junction fastness of pile body impaired.
The applicant is in the patent of applying for before " cutting-free fast tearing is to clasp and interfacing part " [application number: 200810060180.7], providing one can rapid forced pull butt-joint fastener, comprise stretch-draw nut, nut is drawn on top, reinforcing bar pier nose chuck is had at the bottom of cap, stage clip is positioned at top and draws nut, one end of stage clip is positioned in reinforcing bar pier nose chuck, the other end is equipped with the taper sheath be made up of two panels or multi-disc, screw thread cover is screwed in top and draws nut interior and located by taper sheath superior displacement, the afterbody of connection-peg is connected with stretch-draw nut internal thread, when the head of connection-peg is segment shape and docks, taper sleeve is that flexible clamping coordinates.
The clasp of such scheme can be used in precast prestressed concrete stake, thus realizes accurately, reliably, effectively connecting, and is particularly suitable for bull docking.But carefully analyze, the program also has a fly in the ointment, above-mentioned clasp is applicable to the concrete pile of end-plate-free, is not suitable for the concrete pile having end plate.
Summary of the invention
The object of the invention is for the problems referred to above, a kind of easy to connect, non-uniform pile having end plate firmly with end plate is provided.
For achieving the above object, present invention employs following technical proposal: a kind of non-uniform pile having end plate, comprise pile body, reinforcing cage is provided with in pile body, the helical spiral reinforcement that described reinforcing cage comprises some longitudinal reinforcements and is fixedly connected with longitudinal reinforcement, described pile body comprises some interconnective heavy in section stakes and small bore stake, the two ends of pile body are respectively provided with one piece of end plate, end plate internal fixtion has some tension nuts, the two ends of described longitudinal reinforcement are provided with the pier nose that external diameter is greater than longitudinal reinforcement, pier nose is positioned at tension nut and tension nut can block pier nose, the sidewall of described tension nut is also communicated with hole clipping and hole clipping is positioned on end plate.
Have in the non-uniform pile of end plate above-mentioned, have in the non-uniform pile of end plate above-mentioned, the aperture of described hole clipping is greater than the aperture of tension nut, and described pier nose can be moved in tension nut from hole clipping.
Have in the non-uniform pile of end plate above-mentioned, described hole clipping and tension nut one_to_one corresponding, and be spaced end plate is first-class, tension nut entirety is positioned at pile body inside.
Have in the non-uniform pile of end plate above-mentioned, the end edge of end plate is inwardly recessed the welding circle formed for welding.
Have in the non-uniform pile of end plate above-mentioned, described pile body two ends are enclosed with angle protection cover, and the pile body angle protection cover width had on concave station one end is greater than the degree of depth of concave station.
Have in the non-uniform pile of end plate above-mentioned, the bottom of described tension nut reduces the chuck being formed and can block pier nose.
Have in the non-uniform pile of end plate above-mentioned, between the oral area of described tension nut and the end of pile body, form trumpet-shaped connector.
Have in the non-uniform pile of end plate above-mentioned, described heavy in section stake is connected by non-uniform pile transition with the junction of small bore stake.
Have in the non-uniform pile of end plate above-mentioned, described heavy in section stake is connected by the sloping non-uniform pile transition of tool with the junction of small bore stake.
Have in the non-uniform pile of end plate above-mentioned, in described pile body, be also provided with hollow structure.
Have in the non-uniform pile of end plate above-mentioned, described hollow structure comprises the gas tank or hollow section filling out and be located at pile body inside.
Compared with prior art, the invention has the advantages that:
1, the setting of end plate, both may be used for stretch-draw longitudinal reinforcement, may be used for connector again, improve intensity when pile body links;
2, heavy in section stake and small bore stake make pile body surface present concaveconvex structure, thus improve anti-pulling capacity and the Compressive Bearing Capacity of pile body, prove through test, the anti-pulling capacity of the pile body that the pile body specific surface of concaveconvex structure is smooth improves more than 70%, and Compressive Bearing Capacity improves more than 20% than smooth pile body;
3, the setting of hollow structure, reduces the cost of manufacture of pile body, is applicable to the field not high to resistance to compression requirement for bearing capacity.
Accompanying drawing explanation
Fig. 1 is structural representation provided by the invention;
Fig. 2 is another kind of structural representation provided by the invention;
Fig. 3 is another kind of structural representation provided by the invention;
Fig. 4 is that the A of Fig. 1 is to structural representation;
Fig. 5 is that the another kind of A of Fig. 1 is to structural representation;
Fig. 6 is that the another kind of A of Fig. 1 is to structural representation;
Structural representation when Fig. 7 is two end plates welding;
Fig. 8 is the C-C cross-sectional schematic along the line of Fig. 2;
Fig. 9 is the another kind of C-C cross-sectional schematic along the line of Fig. 2;
Figure 10 is the B place enlarged diagram of Fig. 1.
In figure: pile body 10, heavy in section stake 11, small bore stake 12, non-uniform pile 14, slope 15, reinforcing cage 20, longitudinal reinforcement 21, spiral reinforcement 22, pier nose 23, tension nut 30, chuck 31, connector 32, end plate 40, hole clipping 41, welding circle 42, hollow structure 50, welding circle 100.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As Fig. 1, shown in Fig. 4 and Figure 10, a kind of non-uniform pile having end plate, comprise pile body 10, reinforcing cage 20 is provided with in pile body 10, the helical spiral reinforcement 22 that described reinforcing cage 20 comprises some longitudinal reinforcements 21 and is fixedly connected with longitudinal reinforcement 21, described pile body 10 comprises some interconnective heavy in section stakes 11 and small bore stake 12, the two ends of pile body 10 are respectively provided with one piece of end plate 40, end plate 40 internal fixtion has some tension nuts 30, the sidewall of tension nut 30 is also communicated with hole clipping 41 and hole clipping 41 is positioned on end plate 40, the bottom of tension nut 30 reduces the chuck 31 being formed and can block pier nose 23, the two ends of longitudinal reinforcement 21 are provided with the pier nose 23 that external diameter is greater than longitudinal reinforcement 21, pier nose 23 is positioned at tension nut 30 and the chuck 31 of tension nut 30 can block pier nose 23, trumpet-shaped connector 32 is formed between the oral area of tension nut 30 and the end of pile body 10, connector can be inserted in connector 32, thus two pile bodies 10 are reinforced the connection.The aperture of hole clipping 41 is greater than tension nut 30, can be used for the connector that connection dimension is larger, thus formation more firmly connects, and hole clipping 41 inwall can be smooth or arrange internal thread, matches with the outer wall of connector.
In above-mentioned non-uniform pile, the tension of stake and flexural strength are completely by longitudinal reinforcement 21, and shearing resistance and skeleton forming are completely by spiral reinforcement 22, and the stretch-draw in manufacturing process realizes by the stretch-draw of tension nut 30 pairs of pier noses 23.
Above-mentioned heavy in section stake 11 or small bore stake 12 can be independently the stake of circular stake, oval stake, rectangular pile, triangular pile, polygonal pile, quincunx stake or other shapes simultaneously or separately.The surface of heavy in section stake 11 or small bore stake 12 preferably can also adopt chamfered transition, thus makes surface more smooth, not easily broken.The cross section of pile body 10 and the matching form of end plate 40 are fitted, and as Figure 4-Figure 6, the cross sectional shape of end plate 40 is respectively hexagon, squares and triangles, and equally, pile body 10 also can select hexagon, squares and triangles.Certainly, end plate 40 and pile body 10 also can select other shapes.
At present, the production technology of the stake of using in building trade especially preformed pile is divided into centrifugal forming and vibration moulding two kinds.Circular stake and rectangular pile can adopt centrifugal forming, and the stake of other shapes can adopt vibration moulding.
The aperture of hole clipping 41 is greater than the aperture of tension nut 30, and it is inner that tension nut 30 entirety is positioned at pile body 10, and pier nose 23 can be moved in tension nut 30 from hole clipping 41.Hole clipping 41 and tension nut 30 one_to_one corresponding, and be spaced end plate 40 is first-class, the matching form of the shape that tension nut 30 arranges and end plate 40 is fitted, also namely when end plate 40 is rounded, then tension nut 30 distributes ringwise, when end plate 40 is rectangular, the then rectangular distribution of tension nut 30, as end plate 40 in hexagon time, then tension nut 30 distribution in hexagon, by that analogy.It is inner that tension nut 30 entirety is positioned at end plate 40, and when can prevent two pile bodies 10 from connecting, tension nut 30 collides.
The end edge of end plate 40 is inwardly recessed the welding circle 42 formed for welding, also chamfering can be set at end plate 40 edge thus form welding circle 42, after two pile bodies 10 connect, electric welding can also be carried out in welding circle 42, thus make two pile bodies 10 connect more firm.As shown in Figure 7, when two pile bodies 10 dock, can weld again by boxing adapter ring 42, thus form welding circle 100.
Heavy in section stake 11 is connected by non-uniform pile 14 transition with the junction of small bore stake 12, and the two ends of non-uniform pile 14 are respectively heavy in section and small bore, and heavy in section end connects heavy in section stake 11, and small bore end connects small bore stake.
Preferred version, heavy in section stake 11 is connected by non-uniform pile 14 transition with slope 15 with the junction of small bore stake 12, the gradient on slope 15 can do corresponding adjustment according to during not the coexisting and make of soil property, slope 15 is linearly, be convenient to make and lower stake, certain slope 15 also can make negative camber or positive camber or spirality etc. into.
As shown in Figures 2 and 3, in order to reduce the cost of manufacture of pile body 10, hollow structure 50 is also provided with in pile body 10, this hollow structure 50 is by the closed at both ends of pile body 10 or the two ends being communicated with pile body 10, cross sectional shape can be rectangle as shown in Figure 8, hexagon as shown in Figure 9, also can be circular, oval, triangle, irregularly shaped etc., hollow structure 50 comprises the gas tank or hollow section filling out and be located at pile body 10 inside, gas tank also can adopt the elastomeric material of sealing to substitute, and the gas tank of tubulose is formed at the inner injecting compressed air of elastomeric material, hollow tube can adopt pvc pipe or PP pipe or steel pipe etc., no matter be gas tank or hollow tube, all can form fixing shape, thus make pile body 10 inside form hollow structure 50.
Certainly, hollow structure 50 can be arranged in heavy in section stake 11, also can be arranged in small bore stake 12, or is arranged in heavy in section stake 11 and small bore stake 12 simultaneously.Also can arrange multiple hollow structure 50 in pile body 10, multiple hollow structure 50 can be interconnected or independent separately.
Advantage of the present invention is: 1, the setting of end plate 10, both may be used for stretch-draw longitudinal reinforcement 21, and may be used for connector again, improves intensity when pile body 10 links; 2, heavy in section stake 11 and small bore stake 12 make pile body 10 surface presentation concaveconvex structure, thus improve anti-pulling capacity and the Compressive Bearing Capacity of pile body 10, prove through test, the anti-pulling capacity of the pile body 10 that pile body 10 specific surface of concaveconvex structure is smooth improves more than 70%, and Compressive Bearing Capacity improves more than 20% than smooth pile body 10; 3, the setting of hollow structure 50, reduces the cost of manufacture of pile body 10, is applicable to the field not high to resistance to compression requirement for bearing capacity.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. one kind has the non-uniform pile of end plate, comprise pile body (10), reinforcing cage (20) is provided with in pile body (10), the helical spiral reinforcement (22) that described reinforcing cage (20) comprises some longitudinal reinforcements (21) and is fixedly connected with longitudinal reinforcement (21), it is characterized in that, described pile body (10) comprises some interconnective heavy in section stakes (11) and small bore stake (12), the two ends of pile body (10) are respectively provided with one piece of end plate (40), end plate (40) internal fixtion has some tension nuts (30), the two ends of described longitudinal reinforcement (21) are provided with the pier nose (23) that external diameter is greater than longitudinal reinforcement (21), pier nose (23) is positioned at tension nut (30) and tension nut (30) can block pier nose (23), the sidewall of described tension nut (30) is also communicated with hole clipping (41) and hole clipping (41) is positioned on end plate (40).
2. the non-uniform pile having end plate according to claim 1, it is characterized in that, the aperture of described hole clipping (41) is greater than the aperture of tension nut (30), and described pier nose (23) can be moved in tension nut (30) from hole clipping (41).
3. the non-uniform pile having end plate according to claim 1, it is characterized in that, described hole clipping (41) and tension nut (30) one_to_one corresponding, and be spaced end plate (40) is first-class, it is inner that tension nut (30) entirety is positioned at pile body (10).
4. the non-uniform pile having end plate according to claim 2, is characterized in that, the end edge of described end plate (40) is inwardly recessed the welding circle (42) formed for welding.
5. the non-uniform pile having end plate according to claim 1 or 2 or 3, is characterized in that, the bottom of described tension nut (30) reduces the chuck (31) that formation can block pier nose (23).
6. the non-uniform pile having end plate according to claim 1 or 2 or 3, is characterized in that, forms trumpet-shaped connector (32) between the oral area of described tension nut (30) and the end of pile body (10).
7. the non-uniform pile having end plate according to claim 1 or 2 or 3, is characterized in that, described heavy in section stake (11) is connected by non-uniform pile (14) transition with the junction of small bore stake (12).
8. the non-uniform pile having end plate according to claim 7, it is characterized in that, described heavy in section stake (11) is connected by non-uniform pile (14) transition with slope (15) with the junction of small bore stake (12).
9. the non-uniform pile having end plate according to claim 1 or 2 or 3, is characterized in that, is also provided with hollow structure (50) in described pile body (10).
10. the non-uniform pile having end plate according to claim 9, is characterized in that, described hollow structure (50) comprises the gas tank or hollow section filling out and be located at pile body (10) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311637.7A CN104895068A (en) | 2015-06-09 | 2015-06-09 | Variable-cross-section pile with end plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311637.7A CN104895068A (en) | 2015-06-09 | 2015-06-09 | Variable-cross-section pile with end plates |
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| Publication Number | Publication Date |
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| CN104895068A true CN104895068A (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510311637.7A Pending CN104895068A (en) | 2015-06-09 | 2015-06-09 | Variable-cross-section pile with end plates |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464073A (en) * | 2015-12-25 | 2016-04-06 | 苏州汤始建华管桩有限公司 | Enhanced solid preformed pile structure and method for connecting and fixing enhanced solid preformed pile structure and foundation |
| CN106930282A (en) * | 2017-04-05 | 2017-07-07 | 陕西理工学院 | A kind of variable cross-section full prestressing precast reinforced concrete piles |
| WO2021042764A1 (en) * | 2019-09-04 | 2021-03-11 | 周兆弟 | Concrete variable cross-section prefabricated square pile |
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| CN204059347U (en) * | 2014-09-05 | 2014-12-31 | 河南建华管桩有限公司 | Prestressed concrete reducing pile tube |
| CN204780880U (en) * | 2015-06-09 | 2015-11-18 | 周兆弟 | There is variable cross section stake of end plate |
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| JP4984279B2 (en) * | 2006-03-03 | 2012-07-25 | 三谷セキサン株式会社 | Reinforcing bar cage for ready-made piles |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105464073A (en) * | 2015-12-25 | 2016-04-06 | 苏州汤始建华管桩有限公司 | Enhanced solid preformed pile structure and method for connecting and fixing enhanced solid preformed pile structure and foundation |
| CN106930282A (en) * | 2017-04-05 | 2017-07-07 | 陕西理工学院 | A kind of variable cross-section full prestressing precast reinforced concrete piles |
| 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 |
| AU2020341600B2 (en) * | 2019-09-04 | 2023-09-07 | Zhaodi ZHOU | Concrete variable cross-section prefabricated square pile |
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Application publication date: 20150909 |
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