CN202730747U - Prestressed concrete hollow square pile and molding die - Google Patents
Prestressed concrete hollow square pile and molding die Download PDFInfo
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- CN202730747U CN202730747U CN 201220371489 CN201220371489U CN202730747U CN 202730747 U CN202730747 U CN 202730747U CN 201220371489 CN201220371489 CN 201220371489 CN 201220371489 U CN201220371489 U CN 201220371489U CN 202730747 U CN202730747 U CN 202730747U
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Abstract
The utility model provides a prestressed concrete hollow square pile and a molding die. The square pile comprises a square pile body and a square metal end plate, four legs of angle of the square pile body and the square metal end plate are arc legs of angle and the radiuses of the arc legs of angle are equal, and the radiuses of the arc legs of angle are 5-9 millimeters. The molding die comprises an upper die, a lower die, a lock catching device and tightly hanging bolts, the upper die and the lower die are buckled to form the molding die, an inner cavity of the molding die is a square, four inner legs of angle of the square are arc inner legs of angle and the radiuses of the arc inner legs of angle are equal, the radiuses of the arc inner legs of angle are 5-9 millimeters, a locating pin is arranged on the junction of the upper die and the lower die, the tightly hanging bolts are coarse thread bolts, and thread pitch of the tightly hanging bolts is 2-4 millimeters. The prestressed concrete hollow square pile and the molding die have the advantages that a main reinforcement after the pile body of the prestressed concrete hollow square pile is molded and released is uniform in tension stress, the pile body is beautiful, a protective layer is even, intensity is high, bearing capacity of the structure is high, bearing capacity of a foundation is large, materials are saved, flexural rigidity is large, the tightly hanging bolts of the molding die of the prestressed concrete hollow square pile are high in folding and installation efficiency, service life is long, and cost is low.
Description
Technical field
The utility model relates to concrete pile and moulding form thereof, particularly a kind of pre-stressed concrete hollow square stake and moulding form.
Background technology
Pre existing prestressed concrete hollow square pile and moulding form thereof, from Chinese patent (200710068545.6) " prestress high intensity concrete square pile and manufacture method thereof and moulding form ", its two ends are provided with the square metal end plate that is connected with reinforcing cage, bevel for welding is established on two square metal end plates, four limits, central authorities are circular holes, are provided with symmetrically through wires hole and tension force hole between circular hole and four limits; The stirrup of reinforcing cage is welded on the main muscle in the shape of a spiral continuously; The profile of pile body and end plate is square, and its four angles are small one and large one two pairs of circular arcs, and its arc chord angle is 90 ° of a pair of arc chord angles, arc radius 25-30mm, and another is to 90 ° of arc chord angles, arc radius 5-10mm; The stake heart is the columnar mesopore identical with end plate central circular hole diameter.The prestress high intensity concrete square pile made from the moulding form of this patent; main muscle in the reinforcing cage in its pile body is to be evenly distributed in the concrete of pile body edge; the tension stress that main muscle acts in the interior concrete of pile body also is equally distributed; because the cross section of whole stake is asymmetrical design; the concrete that the two pairs of arc chord angle places are used is different; the concrete cover became uneven that causes each main muscle outer wrapping; thereby make pile body have open defect, affected good looking appearance and the quality of prestressed concrete square pile.
For another example traditional square pile, tube-sinking cast-in-situ pile etc., it is relatively low all to show as bearing capacity of single pile, and bending resistance (drawing) shear behavior is poor, and long construction period, pile quality do not meet designing requirement; Piling well damage in transportation and the use procedure causes the pile concrete durability bad.The preformed pile smooth in appearance, the frictional force of piling and soil layer is little.Also there be a kind of end that the prestressed centrifugally concrete square pile of end plate is arranged, from heavy and light, material-saving, lifting, convenient transportation, bearing capacity of pile is large.But its main muscle layout is reasonable not, and poor as main muscle, pile body anti-bending strength with prestressed reinforcement or plain bars.End plate four limit welding grooves have affected the pile connectivity robustness.The pile body cross section is quadrangle, and four jiaos of building operations piles very easily damage, and causes whole stake to be scrapped, and not only causes waste, but also can affect construction speed.
In addition, when making the mould of concrete square pile, operation centrifugal forming, in matched moulds, the demoulding, the easy percussion of running wheel level ground makes the running wheel shape become ellipse.Oval-shaped running wheel is when centrifuge rotates, and mould is dished out from centrifuge leads to a disaster easily.In addition, upper and lower mould all fastens with rabbet groove in the manufacturing process of square pile, fixes with bolt again.Because the matched boards sealing is poor, the spillage phenomenon appears easily in the making moulding, cause product rejection.Centrifugal moulding mould is badly in need of improving.
Summary of the invention
One of the utility model purpose is to remedy deficiency described above, a kind of pre-stressed concrete hollow square stake and moulding form are provided, it is high to be beneficial to make architectural characteristic and bearing load directionality coupling and bearing capacity of single pile, horizontal bending resistance shear behavior is good, shock resistance is strong, meets the prestressed concrete square pile of energy-saving and emission-reduction.Two of the utility model purpose provides a kind of moulding form that meets the prestressed concrete square pile of energy-saving and emission-reduction.
For achieving the above object, the technical solution adopted in the utility model provides a kind of pre-stressed concrete hollow square stake, comprise square pile body and square metal end plate, square pile body contains reinforcing cage, concrete, the center hole that a perforation is axially arranged of square pile body, described square metal end plate is arranged on the two ends of square pile body, also be provided with center hole on the square metal end plate, corresponding with the center hole on the square pile body, the periphery of square metal end plate is provided with bevel for welding, is provided with symmetrically anchor hole on the square metal end plate; Described reinforcing cage comprises main muscle and stirrup, and stirrup is welded on the main muscle in the shape of a spiral; Four angles of square pile body and square metal end plate are the circular arc that radius equates; Wherein: described arc radius is the 5-9 millimeter.
A kind of moulding form of pre-stressed concrete hollow square stake is provided simultaneously, this mould comprises upper die and lower die, locker, hanging bolt, the inner chamber cross section of upper die and lower die is triangular in shape, the moulding form inner chamber that forms after patrix and counterdie fasten is square, wherein: foursquare four interior angles are the circular arc interior angle that radius equates, arc radius is the 5-9 millimeter.
Effect of the present utility model is:
Guarantee that the prestressed concrete square pile moulding form does not produce larger flexural deformation when rolling over dress, handling.
Be convenient to the pre-stressed concrete hollow square stake in the successfully demoulding from its processing mold of process king-pile physical efficiency, also upward guarantee to greatest extent the bearing cross-section of pile body, can guarantee that the pile body arm of angle is not fragile simultaneously.
Be provided with alignment pin at patrix and counterdie joint, patrix and counterdie can accurately be located, guaranteed the crudy of pre-stressed concrete hollow square stake.
Because hanging bolt is that coarse thread bolt pitch is large, the folding dress efficient of hanging bolt is high.Because the transverse tooth thickness of hanging bolt strengthens, when adopting the wind big gun to install, the withstand shocks ability of power of the flank of tooth of hanging bolt is very much not fragile, when folding is loaded onto mould and counterdie and is placed on ground, the thread of hanging bolt is not fragile yet, prolong hanging bolt application life 3-4 doubly, greatly reduce user's use cost.
The tension stress of the main muscle after the pile body moulding of pre-stressed concrete hollow square stake is put is consistent, pile body is attractive in appearance, topping is even, the more common square pile of intensity is high by 20%; The more common square pile of structural bearing capacity is high by 30%, bearing capacity of foundation soil is large, save material, bending rigidity is large, folding dress efficient height, long service life, the cost of the hanging bolt on the pre-stressed concrete hollow square forming pile mould are low.
Description of drawings
Fig. 1 is the structural representation of the utility model pre-stressed concrete hollow square stake;
Fig. 2 is the structural representation of the utility model prestress high intensity concrete square pile moulding form;
Fig. 3 is that the A of Fig. 2 is to view;
Fig. 4 is the B-B sectional view of Fig. 2;
Fig. 5 is the C-C sectional view of Fig. 2;
Fig. 6 is the partial enlarged drawing at the D position of Fig. 5.
Among the figure:
1, center hole 2, square metal end plate 3, periphery 4, square pile body 5, the circular arc arm of angle
6, anchor hole 7, stirrup 8, main muscle 9, flange connecting plate 10, idler pulley 11, reinforcing rib
12, patrix 13, locker 14, counterdie 15, square opening 16, flange hole
17, the arm of angle 19, patrix junction plate 20, groove in concrete slurry separate slot 18, the circular arc
21, hanging bolt 22, hanging bolt peg 23, hanging bolt Suspension rod frame
24, counterdie junction plate 25, suspension ring 26, alignment pin
The specific embodiment
Reaching by reference to the accompanying drawings embodiment is illustrated pre-stressed concrete hollow square stake of the present utility model and forming die structure.
As shown in Figure 1, the pre-stressed concrete hollow square stake, comprise square pile body 4 and square metal end plate 2, square pile body 4 contains reinforcing cage, concrete, the center hole that a perforation is axially arranged 1 of square pile body 4, and square metal end plate 2 is arranged on the two ends of square pile body 4, corresponding with the center hole 1 on the square pile body 4, also be provided with center hole 1 on the square metal end plate 2, the periphery 3 of square metal end plate 2 is provided with bevel for welding, is provided with symmetrically anchor hole 6 on the square metal end plate 2.
Reinforcing cage comprises main muscle 8 and stirrup 7, stirrup 7 is welded on the main muscle 8 in the shape of a spiral, the radius of four circular arc arms of angle 5 of square pile body 4 and square metal end plate 2 is equal R1, pre-stressed concrete hollow square stake for 300mmx 300mm, R1=5mm, pre-stressed concrete hollow square stake for 400mm x 400mm, R1=7mm, pre-stressed concrete hollow square stake for 600mm x 600mm, R1=9mm, be convenient to the pre-stressed concrete hollow square stake in the successfully demoulding from its processing mold of process king-pile physical efficiency, can guarantee not damage simultaneously the arm of angle of pile body.The circular arc outermost at the circular arc arm of angle 5 places of square pile body 4 equals the periphery 3 of square pile body 4 to the distance in main muscle 8 outsides of reinforcing cage right-angle side to the distance in the outside of the main muscle 8 in reinforcing cage bight.
As shown in Figure 2, the prestress high intensity concrete square pile moulding form comprises patrix 12, counterdie 14, locker 13, the outside of patrix 12, counterdie 14 is provided with reinforcing rib 11, and patrix 12, counterdie 14 are provided with idler pulley 10, and the two ends of patrix 12, counterdie 14 have fixedly mounted flange connecting plate 9.The inner chamber cross section of counterdie 14 is triangular in shape, and the moulding form inner chamber that patrix 12 forms after fastening with counterdie 14 is square, and foursquare four interior angles are the circular arc interior angle that radius equates, arc radius is the 5-9 millimeter.Be provided with alignment pin 26 at patrix 12 and counterdie 14 joints.On patrix 12 and the counterdie 14 respectively symmetry suspension ring 25 have been installed, the distance between the both ends of the surface of suspension ring 25 and prestressed concrete square pile moulding form is 0.2-0.25 times of prestressed concrete square pile moulding form total length, generally is advisable at 0.21 times.
As shown in Figure 3, flange connecting plate 9 is provided with square opening 15 and flange hole 16.
As shown in Figure 4, patrix 12, counterdie 14 are provided with idler pulley 10, the outside of patrix 12, counterdie 14 is provided with reinforcing rib 11, the inner chamber cross section of patrix 12, counterdie 14 is triangular in shape, the moulding form inner chamber that patrix 12 forms after fastening with counterdie 14 is square, the radius R 1 of the arm of angle 18 equates that circular arc interior angle arc radius is the 5-9 millimeter in four circular arcs of foursquare inner chamber.For the pre-stressed concrete hollow square stake of 300mm x 300mm, R1=5mm, for the pre-stressed concrete hollow square stake of 400mm x 400mm, R1=7mm is for the pre-stressed concrete hollow square stake of 600mm x 600mm, R1=9mm.Patrix 12 is provided with concrete slurry separate slot 17 with the joint face of counterdie 14, prevents that effectively the concrete slurry in the foursquare inner chamber from overflowing from patrix 12 and the mating face of counterdie 14.
As shown in Figure 5, the moulding form inner chamber of formation was square after the inner chamber cross section of patrix 12, counterdie 14 patrix 12 triangular in shape fastened with counterdie 14.Patrix 12 is fixedly connected with by locker 13 with counterdie 14.The structure of locker 13 is: patrix 12 is provided with patrix junction plate 19, counterdie 14 is provided with counterdie junction plate 24, be respectively equipped with groove 20 on patrix junction plate 19, the counterdie junction plate 24, hanging bolt 21 places groove 20 and patrix junction plate 19 and counterdie junction plate 24 is tightened together, the head of hanging bolt 21 is enclosed within on the hanging bolt peg 22, hanging bolt is the coarse thread bolt, and its pitch is 2-4mm, and 3.5mm is preferably.
As shown in Figure 6, hanging bolt 21 places groove 20 that patrix junction plate 19 and counterdie junction plate 24 are tightened together, the head of hanging bolt 21 is enclosed within on the hanging bolt peg 22, hanging bolt peg 22 is fixed on the hanging bolt Suspension rod frame 23, hanging bolt Suspension rod frame 23 is arranged on the lower plane of counterdie junction plate 24, hanging bolt is the coarse thread bolt, and its pitch is 3mm.
Be provided with alignment pin at patrix and counterdie joint.
Contrast has been done in pre-stressed concrete hollow square stake of the present utility model and pile tube, solid square pile stake, and its ratio the results are shown in following table:
Contrast is as seen from table:
1, the utility model is high with respect to pile tube φ 400, solid square pile structural bearing capacity;
2, the utility model is large with respect to pile tube φ 400, pile tube φ 500 bearing capacity of foundation soil;
3, the utility model is few with respect to solid square pile concrete piles consumption;
4, the utility model is few with respect to all piles master muscle consumption;
5, the utility model is large with respect to other bending rigidities of equivalent diameter or the length of side.
Claims (5)
1. pre-stressed concrete hollow square stake, comprise square pile body and square metal end plate, square pile body contains reinforcing cage, concrete, the center hole that a perforation is axially arranged of square pile body, described square metal end plate is arranged on the two ends of square pile body, also is provided with center hole on the square metal end plate, and is corresponding with the center hole on the square pile body, the periphery of square metal end plate is provided with bevel for welding, is provided with symmetrically anchor hole on the square metal end plate; Described reinforcing cage comprises main muscle and stirrup, and stirrup is welded on the main muscle in the shape of a spiral; Four angles of square pile body and square metal end plate are the circular arc that radius equates; It is characterized in that: described arc radius is the 5-9 millimeter.
2. moulding form of making the described pre-stressed concrete hollow square stake of claim 1, this mould comprises upper die and lower die, locker, hanging bolt, the inner chamber cross section of upper die and lower die is triangular in shape, the moulding form inner chamber that forms after patrix and counterdie fasten is square, it is characterized in that: foursquare four interior angles are the circular arc interior angle that radius equates, arc radius is the 5-9 millimeter.
3. the moulding form of pre-stressed concrete hollow square stake according to claim 2, it is characterized in that: symmetry has been installed suspension ring respectively on the patrix of patrix and counterdie joint and counterdie, the distance between the both ends of the surface of suspension ring and prestressed concrete square pile moulding form be prestressed concrete square pile moulding form total length 0.2-0.25 doubly.
4. the moulding form of pre-stressed concrete hollow square stake according to claim 2 is characterized in that: be provided with alignment pin at patrix and counterdie joint.
5. the moulding form of pre-stressed concrete hollow square stake according to claim 2, it is characterized in that: hanging bolt is the coarse thread bolt, its pitch is 2-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371489 CN202730747U (en) | 2012-07-30 | 2012-07-30 | Prestressed concrete hollow square pile and molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371489 CN202730747U (en) | 2012-07-30 | 2012-07-30 | Prestressed concrete hollow square pile and molding die |
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| Publication Number | Publication Date |
|---|---|
| CN202730747U true CN202730747U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220371489 Expired - Fee Related CN202730747U (en) | 2012-07-30 | 2012-07-30 | Prestressed concrete hollow square pile and molding die |
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| Country | Link |
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| CN (1) | CN202730747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758432A (en) * | 2012-07-30 | 2012-10-31 | 天津建城基业集团有限公司 | Prestressed concrete hollow square pile and formation die |
| CN105649013A (en) * | 2016-02-23 | 2016-06-08 | 初明进 | Production process for concrete hollow square pile |
| CN107160550A (en) * | 2017-07-14 | 2017-09-15 | 江苏汤辰机械装备制造股份有限公司 | A kind of easy-disassembling-assembling centrifugal mold |
-
2012
- 2012-07-30 CN CN 201220371489 patent/CN202730747U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758432A (en) * | 2012-07-30 | 2012-10-31 | 天津建城基业集团有限公司 | Prestressed concrete hollow square pile and formation die |
| CN105649013A (en) * | 2016-02-23 | 2016-06-08 | 初明进 | Production process for concrete hollow square pile |
| CN107160550A (en) * | 2017-07-14 | 2017-09-15 | 江苏汤辰机械装备制造股份有限公司 | A kind of easy-disassembling-assembling centrifugal mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |