CN103953034A - H-shaped pile with steel strand lines and manufacturing method - Google Patents
H-shaped pile with steel strand lines and manufacturing method Download PDFInfo
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- CN103953034A CN103953034A CN201410097721.9A CN201410097721A CN103953034A CN 103953034 A CN103953034 A CN 103953034A CN 201410097721 A CN201410097721 A CN 201410097721A CN 103953034 A CN103953034 A CN 103953034A
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Abstract
The invention relates to an H-shaped pile with steel strand lines. The H-shaped pile comprises a concrete pile body, end plates and a reinforcement cage, wherein the concrete pile body is provided with an H-shaped cross section, and the reinforcement cage comprises the steel strand lines and hoop bars. The H-shaped pile is characterized in that at least one end plate is provided with a plurality of conical holes, each conical hole is gradually expanded from the inside diameter to the outside diameter, the interior of each conical hole is provided with a plurality of clamping sheets, the internal surface of each clamping sheet is provided with clamping teeth, the clamping sheets are spliced to form a clamping head assembly for clamping the steel strand lines, the peripheral surface of the clamping head assembly is a conical surface which is matched with each conical hole, the center of the clamping head assembly is provided with inner tooth holes, each steel strand line penetrates through the inner tooth hole of the corresponding clamping head assembly and is locked by the inner tooth hole, the outer end surface of the clamping head assembly is flush with or slightly lower than the outer end surface of each end plate, and each end plate is also provided with a plurality of threaded connecting holes for connecting. The H-shaped pile with the steel strand lines has the advantages of practicality and feasibility. The invention also discloses a manufacturing method of the H-shaped pile.
Description
Technical field
The invention belongs to the technical field of the pile foundation engineering of all kinds of architectural structure systems, relate in particular to a kind of stake of H type and manufacture method with steel strand.
Background technology
At present, comparatively common concrete pre-stress stake has pile tube, square pile, the stake of H type etc., and various dissimilar stakes have feature separately, can be according to different field settings choice for uses.The H type stake of take is example, comprises the pile body being formed by prestressed reinforcement, stirrup and pouring concrete, and the cross section of pile body is for by two edges of a wing be connected in two webs between the edge of a wing and form H shape.
Prestressed reinforcement in conventional concrete pile for prestressed pipe, square pile, h pile is rod iron, because it is prefabrication, production efficiency is high, main rigidity of soft tissues degree is relatively high, the advantages such as concrete strength is high, it is convenient to construct, the cycle is very fast and be building field a large amount of, extensively adopt and continuity is always used so far dominate in conventional piles Foundation Design at present.But in production and application process, main muscle adopts the concrete pile of rod iron to have more problem, and as larger in rod iron fragility, its tensile strength is low, and (its tensile strength design load is 1000MPa, tensile strength peak is 1420MPa), cannot meet current Building technology requirement; Adopting the reason that also has of rod iron is conveniently to carry out stretch-draw with stretch-draw mechanism, because the characteristic of rod iron, in production for the ease of stretching, must adopt the technology of rod iron heading, the hot upsetting of rod iron is gone out to a mushroom head, so that this heading and pile body end plate, stretch board are blocked and carry out prestressed stretch-draw, but can to cause the intensity at pier nose position to be undermined material impaired due to the heading of hot this rod iron of upsetting; , because rod iron pier nose precision is inconsistent, during stretch-draw, cannot fully contact with end plate meanwhile, cause end plate local failure; Rod iron, because cutting accuracy is controlled not, causes rod iron length to differ, and there will be Stress non-homogeneity, the phenomenon of even breaking in stretching process.Above-mentioned many disadvantages, causes existing main muscle to adopt the technical performances such as the bending resistance of the concrete pile of steel bar for prestressed concrete, shearing resistance obviously not enough.In engineering application, because earthquake, typhoon and other uncertain factors can cause top, buildings pile basis, produce larger moment of flexure and horizontal force, road and bridge or railway bridge also can produce because of the dynamic load of haulage vehicle larger moment of flexure and horizontal force.Tradition h pile often cannot be used because bending resistance and shear behavior are not enough, and what in highrise building, show is especially serious.In addition,, in the engineerings such as bracing of foundation pit, slope retaining, traditional h pile is because bending resistance and shear behavior deficiency cannot scale application.
Application number is that 201210339885.9 Chinese invention patent applications disclose a kind of H type soldier pile, comprise that prestressed reinforcement adopts the H type soldier pile of steel strand, the end plate of its H type soldier pile end of body and steel strand are mutually not stressed, also be that end plate is not subject to the prestressing force from steel strand, steel strand are only through the hole on end plate wherein accommodating, in finished product H type soldier pile, steel strand are to rely on concrete bond stress to fix, and end plate is only to rely on pile protection hoop and anchor rib fit to be fixed on pile body end plate.Therefore, the prestressing force of the H type soldier pile end in this patent application has certain loss, and pile extension position tension, anti-bending strength have impact in many piles body pile extension situation.And how to solve end plate, practical being connected is a difficult point with the effective of steel strand, and prior art is also without any disclosure.
Meanwhile, as adopt the integral tension mode of existing pile tube to make the stake of H type, because H type stake profile is H type, the center of gravity of its pile body can not accurately be found, easily stuck in integral tension process end plates, therefore, existing production technology and manufacture method have also affected the manufacture of H type stake.
Summary of the invention
Technical problem to be solved by this invention is not enough and a kind of H type stake with steel strand is provided for above-mentioned prior art, significantly improves the technical performances such as bending resistance, shearing resistance, tension of H type stake, and overcome steel strand in the stake of H type with the problem that is connected and fixed of end plate.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of H type stake with steel strand, comprise cross section be the concrete pile body of H shape, be positioned at concrete pile end of body end plate, be positioned at the reinforcing cage of concrete pile body, reinforcing cage comprises that axial arranged steel strand and string are enclosed within the stirrup on described steel strand, it is characterized in that: at least one described end plate adopts clip type structure to be connected with all steel strand of reinforcing cage respective end, on end plate, be provided with the bellmouth that several apertures from the inside to the outside expand gradually, bellmouth and steel strand corresponding setting one by one, in each bellmouth, be placed with multi-disc intermediate plate, the inner surface of each intermediate plate is provided with latch, the amalgamation of multi-disc intermediate plate forms the chuck component in order to clip steel strand, the outer peripheral face of this chuck component forms the cone face matching with described bellmouth, in chuck component, be formed centrally internal tooth hole, described each steel strand are all through the interior perforation in corresponding chuck component and locked by interior perforation, the outer face of chuck component flushes with the outer face of described end plate or is lower slightly, on described end plate, also have a plurality of threaded connection holes in order to connect.
On above-mentioned end plate, have several counterbores, be placed with the transition member that profile and counterbore match in each counterbore, the front end of transition member has the ring-type shoulder block portion in the macropore portion that is sunken to described counterbore, and described bellmouth is arranged in described transition member.It arranges transition member in end plate, and bellmouth is set in transition member, due to the processing of counterbore, to compare bellmouth more convenient, and process bellmouth in transition member, compare and on end cap, process bellmouth and more easily realize, the material that simultaneously we also can allow transition member adopt properties to be better than end plate is made, and allows steel strand and end plate relative fix more firm; On described end plate, also have a plurality of threaded connection holes in order to connect.
The periphery of the above-mentioned chuck component being comprised of multi-disc intermediate plate is provided with cannelure, in this cannelure, is placed with the cranse in multi-disc intermediate plate hoop jail.Cranse can be wire loop or rubber ring, cranse is set and can makes the chuck component of multi-disc intermediate plate composition more firm.
Above-mentioned each chuck component is comprised of three described intermediate plates.Through evidence, it is better that each chuck component forms its indices by three intermediate plates, and the location of steel strand and bellmouth is the most firm.
Above-mentioned concrete pile body two ends are equipped with end plate, and two end plates all adopts clip type structure to be connected with the steel strand at reinforcing cage two ends.Can certainly be to only have an end plate and steel strand to adopt clip type structure to be connected, in production, the end plate of the other end of concrete pile body can adopt alternate manner to be connected with steel strand, to fix, as the fixing Extrusion anchor ground tackle that adopts in steel strand end, by Extrusion anchor ground tackle and end plate, fix; Also can adopt steel strand from the mode of anchor, by steel strand and anchor plate, fix, after moulding, cut off the mode of steel strand.
Second technical problem to be solved by this invention is to provide the manufacture method that a kind of manufacture has the H type stake of steel strand as described in aforementioned claim, it is characterized in that: described manufacture method comprises following steps
(1), the customized cut-off of steel strand, and be arranged in shaping position;
(2), several stirrup strings are enclosed within on steel strand to formation reinforcing cage;
(3), by reinforcing cage at least every of one end steel strand by chuck component and the end plate that is positioned at the bellmouth on end plate or is positioned at the bellmouth in transition member, be connected and fixed, again end plate is fixedly connected with anchor plate by bolt, with on the corresponding anchor plate of the end plate that is provided with bellmouth, have with chuck component and bore a hole one to one, steel strand pass perforation, and steel strand and the anchor plate of the reinforcing cage other end are connected and fixed;
(4), close up mould, make reinforcing cage be positioned at the H shape die cavity of mould, allow the anchor plate at two ends and the laminating of the outer face of mould simultaneously.
(5), tension steel strand: with the stretch-draw respectively of every steel strand of punching jack pair, be stretched to specified value and make chuck component locking steel strand;
(6), to delivering concrete in the die cavity of mould, carry out feeding, feeding limit, limit is shaken closely knit by shaking device, obtain the concrete pile body of closely knit moulding;
(7), stream curing;
(8), form removal, remove anchor plate simultaneously and open and take out finished product concrete pile with putting being connected of end plate;
(9), the steel strand that expose outside end plate are cut off and polished, make steel strand not expose outside the outer face of end plate.
This manufacture method is a kind of method that pratical and feasible manufacture has the H type stake of steel strand, H type stake bending resistance, shearing resistance, tensile property are improved greatly, and in the method, between each step, can form good connecting, manufacturing process is simple and smooth, low cost of manufacture; In stretch-draw step, its stretching process is for to distinguish stretch-draw to every steel strand, compare with existing integral tension mode, solved because H type stake center of gravity is looked for and forbidden to cause in the easy stuck problem of integral tension process end plates, and can guarantee that every steel strand are accurately stretched to specified value.
In above-mentioned steps 3, the every steel strand at reinforcing cage two ends are all connected and fixed by chuck component and the end plate that is positioned at the bellmouth on end plate or is positioned at the bellmouth in transition member, on described two anchor plates, all have described perforation
Stretching mode in above-mentioned steps 5 is, end plate and anchor plate are connected and fixed by connecting bolt, anchor plate and die face prop up, during stretch-draw, the head of punching jack is passed to the perforation on anchor plate the outer face of withstanding chuck component, steel strand pass the head of punching jack and are connected with the traction element of punching jack, the traction element pull steel strand of punching jack carry out stretch-draw and are stretched to specified value these root steel strand, make steel strand generation deformation, then unload punching jack, steel strand bounce back under the effect of self deformation retraction force, the retraction of steel strand drives chuck component towards the small-bore direction retraction of bellmouth, chuck component and bellmouth firmly to be fixed, and make the further banding of interior perforation in chuck component stuck steel strand.
As improvement, also comprise the two steel concrete counter force walls that be arranged in parallel, between this two steel concrete counter force wall, form the shaping position in described step 1, described mould is located between two steel concrete counter force walls, the upper surface of described two steel concrete counter force walls is provided with guide rail, and guide rail is provided with in order to described die perfusion concrete can be along the feeding vehicle of guide rail slippage.This structure is convenient to H type forming pile, steel concrete counter force wall is set and to this manufacture method, provides suitable shaping position, offset the injury of partial reaction power to mould, feeding vehicle can be along slippage before and after steel concrete counter force wall in addition, be convenient to all can carry out feeding in random position, mould is put arbitrarily and can be found suitable feeding position to feeding vehicle, after feeding finishes simultaneously, also can remove feeding vehicle and conveniently the stake of H type be hung to mould.
Further improve, above-mentioned anchor plate upper and lower end is fixed with respectively upper and lower crossbeam, described steel concrete counter force wall two ends are respectively equipped with in order to the upper and lower groove to upper and lower crossbeam guiding, the bottom surface of described lower transverse beam is provided with roller, and the bottom surface of described shaping position is provided with the track in order to described roller is guided.
Lower and upper cross-member and anchor plate connect into an integral body, transverse shifting on can guide rail in its lower section, thereby can increase labor operation space, the backward end plate of matched moulds moves, end plate and anchor plate are bolted fixing, and the stake of H type is wanted to unclamp bolt before parting, and moves to opposite side, make both separated, be convenient to the H type stake demoulding;
Compared with prior art, the invention has the advantages that: the main muscle of this H type stake all adopts the high steel strand of performance, make the tensile strength of winner's muscle consistent, its bending resistance, shearing resistance, tensile property improve greatly, and pile body overall performance increases; The chuck component that steel strand consist of intermediate plate and end plate are realized fixing, have avoided the prestressed loss in H type pile body end, and when pile extension, have increased tension, the anti-bending strength at pile extension position.During stretch-draw, available punching jack withstands the outer face of chuck component, and allow steel strand pass interior perforation, externally the traction element by punching jack carries out stretch-draw to steel strand, after unloading punching jack, steel strand loosen retraction, the retraction of steel strand drives chuck component towards the small-bore direction retraction of bellmouth, chuck component and bellmouth firmly to be fixed, and make the further banding of interior perforation in chuck component stuck steel strand, its stretching process is for to distinguish stretch-draw to every steel strand, compare with existing integral tension mode, solved because H type stake center of gravity is looked for and forbidden to cause in the easy stuck problem of integral tension process end plates, guarantee that every steel strand are accurately stretched to specified value, feeding limit, limit is shaken closely knit by shaking device, obtain the concrete pile body of closely knit moulding, after completing, moulding unloads anchor plate, steel strand are put and opened, last severing exposes outside the steel strand of end plate and polishes, the ground tackle portion of end plate is not protruded in the H type stake that manufacture completes, it is a kind of practicable H type stake with steel strand, and in the stake of H type steel strand connection, locking mode advantages of simple, easy to operate and cost is low, makes steel strand apply to the real value that the stake of H type was achieved and had industrial applicability,
Accompanying drawing explanation
Fig. 1 is the perspective view (bellmouth is set directly on end plate) of H type stake embodiment of the present invention;
Fig. 2 is the partial sectional view (bellmouth is set directly on end plate) of H type stake embodiment of the present invention;
Fig. 3 is the lateral view (bellmouth is set directly on end plate) of H type stake embodiment of the present invention;
Fig. 4 is the partial sectional view (bellmouth is arranged in transition member) of H type stake embodiment of the present invention;
Fig. 5 is the perspective view of chuck component in H type stake embodiment of the present invention;
Fig. 6 is the three-dimensional exploded view of chuck component in H type stake embodiment of the present invention;
Fig. 7 is for manufacturing the schematic diagram of the manufacture method of aforementioned H type stake;
Fig. 8 is for manufacturing the top view of the manufacture method of aforementioned H type stake;
Fig. 9 is for manufacturing the lateral view of the manufacture method of aforementioned H type stake;
Figure 10 is the structural representation (bellmouth is set directly on end plate) of the stretch-draw step in the manufacture method of the aforementioned H type of manufacture stake;
Figure 11 is the structural representation (bellmouth is arranged in transition member) of the stretch-draw step in the manufacture method of the aforementioned H type of manufacture stake.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Fig. 1～6, it is a preferred embodiment of the present invention.
There is a H type stake for steel strand, comprise cross section be the concrete pile body 1 of H shape and be positioned at concrete pile body 1 two ends end plate 2, be positioned at the reinforcing cage of concrete pile body 1; Reinforcing cage comprises that axial arranged steel strand 3 and string are enclosed within the stirrup 4 on steel strand 3, and end plate 2 is also H shape, and end plate 2 is fixedly connected with pile protection hoop 9 or is one-body molded is steel drum structure, is fixedly connected with anchor rib on pile protection hoop 9 or end plate 2,
Each end plate 2 all adopts clip type structure to be connected with all steel strand of reinforcing cage respective end, on end plate 2, be provided with the bellmouth 21 that several apertures from the inside to the outside expand gradually, bellmouth 21 and steel strand 3 corresponding setting one by one, in each bellmouth 21, be placed with multi-disc intermediate plate 5, the inner surface of each intermediate plate 5 is provided with latch 51, these multi-disc intermediate plate 5 amalgamations form the chuck component 6 in order to clip steel strand 3, the outer peripheral face of this chuck component 6 forms the cone face 61 matching with bellmouth 21, in chuck component 6, be formed centrally internal tooth hole 62, each steel strand 3 are all through the interior perforation 62 in corresponding chuck component and by interior perforation 62 lockings, the outer face of chuck component 6 flushes with the outer face of end plate 2 or is lower slightly, on end plate 2, also have a plurality of threaded connection holes 22 in order to connect.Each chuck component 6 in the present embodiment is comprised of three described intermediate plates 5.
As shown in Figure 4, on end plate 2, have several counterbores 23, in each counterbore 23, be placed with the transition member 7 that profile and counterbore 62 match, the front end of transition member 7 has the ring-type shoulder block portion 71 in the macropore portion that is sunken to counterbore 23, and aforementioned bellmouth 21 is arranged in described transition member 7.
The periphery of the chuck component 6 being comprised of multi-disc intermediate plate 5 is provided with cannelure 63, is placed with the firm cranse 64 of multi-disc intermediate plate 5 hoop in this cannelure 63, and cranse 64 can be wire loop or rubber ring.
The main muscle of this H type stake all adopts the high steel strand of performance 3, makes the tensile strength of winner's muscle consistent, and its bending resistance, shearing resistance, tensile property improve greatly, and the overall performance of pile body increases; The chuck component 6 that steel strand 3 consist of intermediate plate is realized and being fixed with end plate 2, has avoided the prestressed loss in H type pile body end, and when pile extension, has increased tension, the anti-bending strength at pile extension position.During stretch-draw, available punching jack 12 withstands the outer face of chuck component 6, and allow steel strand pass interior perforation 62, externally the traction element by punching jack 12 carries out stretch-draw to steel strand 3, unload the rear steel strand of punching jack 12 and loosen retraction, the retraction of steel strand 3 drives chuck component 6 towards the small-bore direction retraction of bellmouth 21, chuck component 6 and bellmouth 21 firmly to be fixed, and make the further banding of interior perforation 62 in chuck component stuck steel strand 3, its stretching process is for to distinguish stretch-draw to every steel strand 3, compare with existing integral tension mode, solved because H type stake center of gravity is looked for and forbidden to cause in integral tension process easily stuck problem, guarantee that every steel strand are accurately stretched to specified value, feeding limit, limit is shaken closely knit by shaking device, obtain the concrete pile body 1 of closely knit moulding, after completing, moulding unloads anchor plate 8, steel strand 3 are put and opened, last severing exposes outside the steel strand of end plate and polishes, the ground tackle portion of end plate is not protruded in the H type stake that manufacture completes, it is a kind of practicable H type stake with steel strand, and in the stake of H type steel strand connection, locking mode advantages of simple, easy to operate and cost is low, makes steel strand apply to the real value that the stake of H type was achieved and had industrial applicability.
As shown in Fig. 7～11, a kind of manufacture method of manufacturing the H type stake as described in aforementioned claim with steel strand, is characterized in that: described manufacture method comprises following steps
(1), the customized cut-off of steel strand 3, and be arranged in shaping position.
(2), several stirrup 4 strings are enclosed within on steel strand 3 to formation reinforcing cage.
(3), the every steel strand 3 of reinforcing cage one end are connected and fixed with end plate 2 by the chuck component 6 that is positioned at the bellmouth 21 on end plate or is positioned at the bellmouth 21 in transition member 7, the every steel strand 3 of the reinforcing cage other end are also connected and fixed with end plate 2 by the chuck component 6 that is positioned at the bellmouth 21 on end plate or is positioned at the bellmouth 21 in transition member 7, again the end plate at reinforcing cage two ends 2 is all fixedly connected with anchor plate 8 by bolt 10, bolt 10 is threaded with the threaded connection hole 22 on end plate through anchor plate 8 is rear, on two anchor plates 8, have with chuck component 6 and bore a hole one to one 81, steel strand 3 pass perforation 81.
(4), close up mould 11, make reinforcing cage be positioned at the H shape die cavity of mould, allow the outer face laminating of anchor plate 8 with mould 11 at two ends simultaneously.
(5), tension steel strand 3: with 3 stretch-draw respectively of 12 pairs of every steel strand of punching jack, be stretched to specified value and make chuck component 6 locking steel strand 3.
Stretching mode is, the head of punching jack 12 is passed to the perforation on anchor plate the outer face of withstanding chuck component 6, steel strand 3 pass the head of punching jack 12 and are connected with the traction element of punching jack 12, 3 pairs of these root steel strand 3 of traction element pull steel strand of punching jack 12 carry out stretch-draw and are stretched to specified value, make steel strand 3 that deformation occur, then unload punching jack 12, steel strand 3 bounce back under the effect of self deformation retraction force, the retraction of steel strand 3 drives chuck component 6 towards the small-bore direction retraction of bellmouth 21, chuck component 6 and bellmouth 21 firmly to be fixed, and make the further banding of interior perforation 62 in chuck component stuck steel strand 3.
(6), to delivering concrete in the die cavity of mould 11, carry out feeding, feeding limit, limit is shaken closely knit by shaking device, obtain the concrete pile body 1 of closely knit moulding.
(7), stream curing.
(8), form removal, remove anchor plate 8 simultaneously and open and take out finished product concrete pile with putting being connected of end plate 2.
(9), the steel strand 3 that expose outside end plate 2 are cut off and polished, make steel strand 3 not expose outside the outer face of end plate 2.
This method also comprises, the two steel concrete counter force walls 13 that be arranged in parallel, between this two steel concrete counter force wall 13, form the shaping position in described step 1, described mould 11 is located between two steel concrete counter force walls 13, the upper surface of described two steel concrete counter force walls 13 is provided with guide rail 14, and guide rail 14 is provided with in order to described mould 11 concrete perfusions can be along the feeding vehicle 15 of guide rail 14 slippages.
Anchor plate 8 upper and lower ends are fixed with respectively upper and lower crossbeam 161,162, described steel concrete counter force wall 13 two ends are respectively equipped with in order to the upper and lower groove 171,172 to upper and lower crossbeam 161,162 guiding, the bottom surface of lower transverse beam 162 is provided with roller 18, and the bottom surface of shaping position is provided with the track 19 in order to described roller 18 is guided.
Claims (10)
1. there is a H type stake for steel strand, comprise cross section be the concrete pile body (1) of H shape, be positioned at concrete pile body (1) end end plate (2), be positioned at the reinforcing cage of concrete pile body (1), reinforcing cage comprises that axial arranged steel strand (3) and string are enclosed within the stirrup (4) on described steel strand (3), it is characterized in that: at least one described end plate (2) adopts clip type structure to be connected with all steel strand of reinforcing cage respective end, on end plate (2), be provided with the bellmouth (21) that several apertures from the inside to the outside expand gradually, bellmouth (21) and steel strand (3) corresponding setting one by one, in each bellmouth (21), be placed with multi-disc intermediate plate (5), the inner surface of each intermediate plate (5) is provided with latch (51), this multi-disc intermediate plate (5) amalgamation forms the chuck component (6) in order to clip steel strand (3), the outer peripheral face of this chuck component (6) forms the cone face (61) matching with described bellmouth (21), in chuck component (6), be formed centrally internal tooth hole (62), described each steel strand (3) are all locked through the interior perforation (62) in corresponding chuck component and by interior perforation (62), the outer face of chuck component (6) flushes with the outer face of described end plate (2) or is lower slightly, on described end plate (2), also have a plurality of threaded connection holes (22) in order to connect.
2. the H type stake with steel strand according to claim 1, it is characterized in that: on described end plate (2), have several counterbores (23), in each counterbore (23), be placed with the transition member (7) that profile and counterbore (62) match, the front end of transition member (7) has the ring-type shoulder block portion (71) in the macropore portion that is sunken to described counterbore (23), and described bellmouth (21) is arranged in described transition member (7).
3. the H type stake with steel strand according to claim 1, it is characterized in that: the periphery of the described chuck component (6) being comprised of multi-disc intermediate plate (5) is provided with cannelure (63), in this cannelure (63), is placed with multi-disc intermediate plate (5) is bound round to firm cranse (64).
4. the H type stake with steel strand according to claim 1, is characterized in that: described each chuck component (6) is comprised of three described intermediate plates (5).
5. the H type stake with steel strand according to claim 1, it is characterized in that: described concrete pile body (1) two ends are equipped with end plate (2), two end plates (2) all adopts clip type structure to be connected with the steel strand (3) at reinforcing cage two ends.
6. manufacture has a manufacture method for the H type stake of steel strand as described in aforementioned claim, it is characterized in that: described manufacture method comprises following steps
(1), the customized cut-off of steel strand (3), and be arranged in shaping position;
(2), several stirrups (4) string is enclosed within to steel strand (3) above, formation reinforcing cage;
(3), by on reinforcing cage at least every of one end steel strand (3) by the chuck component (6) that is positioned at the bellmouth (21) on end plate or is positioned at the bellmouth (21) in transition member (7), be connected and fixed with end plate (2), again end plate (2) is fixedly connected with anchor plate (8) by bolt (10), with on the corresponding anchor plate (8) of the end plate (2) that is provided with bellmouth (21), have and chuck component (6) bore a hole one to one (81), steel strand (3) pass perforation (81), the steel strand of the reinforcing cage other end and anchor plate (8) are connected and fixed,
(4), close up mould (11), make reinforcing cage be positioned at the H shape die cavity of mould, allow the anchor plate (8) at two ends and the laminating of the outer face of mould (11) simultaneously.
(5), tension steel strand (3): to every steel strand (3) stretch-draw respectively, be stretched to specified value and make chuck component (6) locking steel strand (3) with punching jack (12);
(6), to delivering concrete in the die cavity of mould (11), carry out feeding, feeding limit, limit is shaken closely knit by shaking device, obtain the concrete pile body (1) of closely knit moulding;
(7), stream curing;
(8), form removal, remove anchor plate (8) simultaneously and open and take out finished product concrete pile with putting being connected of end plate (2);
(9), the steel strand (3) that will expose outside end plate (2) cut off and polish, and make steel strand (3) not expose outside the outer face of end plate (2).
7. manufacture method according to claim 6, it is characterized in that: in described step 3, the every steel strand (3) at reinforcing cage two ends are all connected and fixed with end plate (2) by the chuck component (6) that is positioned at the bellmouth (21) on end plate or is positioned at the bellmouth (21) in transition member (7), on described two anchor plates, all have described perforation (81).
8. manufacture method according to claim 6, it is characterized in that: the stretching mode in described step 5 is, by the head of punching jack (12) through the perforation on anchor plate and withstand the outer face of chuck component (6), steel strand (3) pass the head of punching jack (12) and are connected with the traction element of punching jack (12), the traction element pull steel strand (3) of punching jack (12) carry out stretch-draw and are stretched to specified value these root steel strand (3), make steel strand (3) that deformation occur, then unload punching jack (12), steel strand (3) bounce back under the effect of self deformation retraction force, the retraction of steel strand (3) drives chuck component (6) towards the small-bore direction retraction of bellmouth (21), chuck component (6) and bellmouth (21) firmly to be fixed, and make interior perforation (62) in chuck component further banding stuck steel strand (3).
9. manufacture method according to claim 6, it is characterized in that: also comprise the two steel concrete counter force walls (13) that be arranged in parallel, between this two steel concrete counter force wall (13), form the shaping position in described step 1, described mould (11) is located between two steel concrete counter force walls (13), the upper surface of described two steel concrete counter force walls (13) is provided with guide rail (14), and guide rail (14) is provided with in order to described mould (11) concrete perfusion can be along the feeding vehicle (15) of guide rail (14) slippage.
10. manufacture method according to claim 9, it is characterized in that: described anchor plate (8) upper and lower end is fixed with respectively upper and lower crossbeam (161,162), described steel concrete counter force wall (13) two ends are respectively equipped with in order to the upper and lower groove (171,172) to upper and lower crossbeam (161,162) guiding, the bottom surface of described lower transverse beam (162) is provided with roller (18), and the bottom surface of described shaping position is provided with the track (19) in order to described roller (18) is guided.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410097721.9A CN103953034B (en) | 2014-03-17 | 2014-03-17 | There is H type stake and the manufacture method of steel strand wires |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410097721.9A CN103953034B (en) | 2014-03-17 | 2014-03-17 | There is H type stake and the manufacture method of steel strand wires |
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| CN103953034A true CN103953034A (en) | 2014-07-30 |
| CN103953034B CN103953034B (en) | 2016-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105643776A (en) * | 2016-03-31 | 2016-06-08 | 俞晓东 | Mould for preparing H-shaped concrete pile |
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| CN103953034B (en) | 2016-06-29 |
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