CN105019450A - Production process of large-caliber SC shape steel mixed pile or column - Google Patents
Production process of large-caliber SC shape steel mixed pile or column Download PDFInfo
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- CN105019450A CN105019450A CN201510369928.1A CN201510369928A CN105019450A CN 105019450 A CN105019450 A CN 105019450A CN 201510369928 A CN201510369928 A CN 201510369928A CN 105019450 A CN105019450 A CN 105019450A
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Abstract
The invention relates to a production process of a large-caliber SC shape steel mixed pile or column. The production process comprises the following steps: a matched tool is manufactured, disc round steep is stretched, and an outer reinforcement cage and a reinforcing cage rib are manufactured; the outer reinforcement cage is welded with a pull rod, and the reinforcing cage rib is put in the outer reinforcement cage after coating an upper end plate; a middle joiner is connected with a keel, the assembled outer reinforcement cage coats a steel pipe, a head plate is assembled with a steel cylinder, and a steel pipe core rod is coated with a rubber pipe to be inserted in the structural part; a pile top section structure, a pile bottom section structure and a standard section structure are manufactured in sequence and are assembled, the assembled structural part is lifted into a steel mold, the mold is closed, the centrifugation is performed after the pumping of concrete, and the normal-temperature maintenance is performed; when the strength of the concrete reaches 10% of a design value, the steel pipe is pulled out; and when the strength of the concrete reaches 60% of the design value, the mold is disassembled, and the product is formed through assembling. The production process can manufacture an ultralong prestress concrete pipe pile with large diameter.
Description
Technical field
The present invention relates to pile tube and manufacture field, particularly a kind of heavy caliber SC shaped steel mixes stake or post production technology.
Background technology
Pile tube is divided into prestressed concrete pipe pile and prestressed high-strength concrete pile by strength grade of concrete or effective compressive pre-stress.Prestressed concrete pipe pile code name is PC, and prestressed high-strength concrete pile code name is PHC, and thin-wall pipe pile code name is PTC.The concrete strength of PC stake must not lower than C60, and thin-wall pipe pile strength grade must not must not lower than C80 lower than the strength grade of concrete of C60, PHC stake.
The PC stake adopting pre-tensioning system to produce and PHC stake at home the engineering such as building, bridge are used widely, but due to the reason of the aspect such as plant equipment, transportation technology, pre-tensioning system technique is only limitted to produce external diameter 300mm-1000mm, the pile tube of joint length 7m-15m, and in the engineerings such as some large and medium-sized port and pier, bridges, mostly need to use diameter 1000mm-1400mm, the major diameter of joint length 40m-60m, overlength degree prestressed concrete pipe pile, and adopt pre-tensioning system technique cannot obtain the pile tube meeting above-mentioned requirements.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of heavy caliber SC shaped steel and mixes stake or post production technology, can obtain the prestressed concrete pipe pile of major diameter, overlength degree.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of heavy caliber SC shaped steel mixes stake or post production technology, and its innovative point is: described step is:
A) first, the matching appliances needing to use is produced according to design drawing: head plate, transition joint device, pull bar and steel pipe plug overcoat rubber tube;
B) by stretching for dish round steel and stretch until the diameter length of regulation, and material is cut according to designing requirement essence, will a pier nose of dish round steel;
C) ready round steel, spiral bar are carried out roll welding, form outer reinforcing cage and be loaded on the stake push pipe joint reinforcement cage muscle of outer reinforcing cage inside;
D) the one-sided welding rod of outer reinforcing cage will welded in step c, and stake push pipe joint is strengthened after cage muscle puts end plate, put into outer reinforcing cage;
E) transition joint device and the stake push pipe in steps d are saved strengthen cage muscle and outer reinforcing cage is connected, and ready strut is welded on outer reinforcing cage with M shape;
F) the outer reinforcing cage assembled packed into steel pipe and fix with spot welding of end plate, head plate and steel cylinder are assembled, and fixed by screw tightening, then steel cylinder is welded with end plate, steel cylinder is reserved with air-vent, be embedded in permeability cell at air-vent, and be weldingly fixed on steel cylinder by permeability cell, stake push pipe joint is strengthened being fixed by supporting welding between cage muscle and steel cylinder;
G) steel pipe plug overcoat rubber tube is inserted in said structure part;
H) an epimerite structure, stake coxopodite structure and standard knot structure is produced by above-mentioned steps, and assemble, while it is noted that stake coxopodite structure and standard knot structure do not strengthen cage muscle structure, the structural member assembled is hung in punching block, and tightens mold closing screw;
I) hung by the structural member getting togather mould on metering chassis, the concrete pump that concrete pump handlebar is stirred is delivered in steel pipe, and feeding terminates to hang centrifuge;
J) centrifugal good punching block is winched to assigned position, normal temperature maintenance;
K) when concrete strength reaches 10% of design load, clamp rubber tube with special fixture and by bolt tightening, drive wire rope at the uniform velocity to advance until steel pipe is extracted with hoist engine;
L) when concrete strength reaches 60% of design load, carry out form removal, obtain a push pipe joint, stake bottom tube joint and middle tube coupling;
M) after utilizing reinforcing bar line to box out through steel tube place, stake push pipe is saved, stake bottom tube saves and middle tube coupling carries out assembled, and carry out stretch-draw, form post stretching heavy caliber SC shaped steel and mix stake.
Further, in described step l, its form removal order is specially: loosen pull bar silk, removal end cap, removal patrix, hangs out tube coupling from punching block.
Further, in described step m, before assembled, cleaning reserving hole channel, ensures duct clean unimpeded, assembled front worn tube coupling section laitance, concordant, greasy dirt, smooth is coated in tube coupling head by full uniformly for cementing agent; Look into adjustment to splicing station car test before splicing, time assembled, obvious mark is made in corresponding preformed hole position.
Further, in described step m, when stretch-draw is carried out to steel strand, adopt jack and oil meter, and jack and oil meter must be supporting, and periodic maintenance and verification,
Further, in described step m, stretch-draw is carried out at twice, the 30%-40% of design load is got in first time stretch-draw, and when compressive strength of condensing reaches 30MPa, period must not be allocated and transported or be moved, Shi Hanzhang is to design load again, the active force of steel strand anchoring posttension pulling force should with duct center superposition, should slip casting in time after steel strand tension, prevent steel strand from becoming rusty turbid.
Further, described grouting cement material should meet GB175, mixing water and additive should meet the regulation of JTS202, slip casting should under upwards hole carry out, cement paste by one end of stake to other end force feed, mud jacking should be slowly even, must not interrupt, treat that gas outlet has underflow to flow out and closes gas outlet valve, keep 2min, 0.4-0.6MPa pressure, after slip casting, cement paste compressive strength does not reach 28MPa or cement slurry adhesion stress when not reaching 0.2KN/mm, Big Pipe Pile must not handling in any form, mobile, loosen ground tackle, fixture can adopt autogenous cutting to carry out, but otch should not to rain 50mm from ground tackle, prevent ground tackle from annealing, cutting is put to open and is answered symmetry, mutual intersection is carried out.
The invention has the advantages that: the post stretching heavy caliber SC shaped steel obtained by the technique in the present invention mixes length and the diameter demand that stake not only can meet overall pile tube, and can adjust length freely, also can be guaranteed in intensity and anti-bending strength etc. simultaneously.
Structure design have adjusted laying and the manufacture craft of reinforcing cage, solve the problem that pile body easily produces longitudinal crack, and improve stake top anti-strike ability.
Tube coupling makes and devises double-deck end mould, effectively improves tube coupling section planeness, ensures the joining quality of pile tube.
Tube coupling adopts steel pipe, reinforcing bar, concrete complex technique, has higher physical performance index and mechanical performance index, has higher anti-fight performance and the corrosion resistance of Geng Gao, have higher bending resistance shear behavior; Adopt C80 high performance concrete, electric flux <1000C, effectively improve the durability of pile tube.
Accompanying drawing explanation
Fig. 1-Figure 14 is the structural representation that heavy caliber SC shaped steel of the present invention mixes stake or post production technology.
Detailed description of the invention
Illustrate below in conjunction with accompanying drawing and stake mixed to heavy caliber SC shaped steel of the present invention or post production technology is described further:
The first step, first, produces the matching appliances needing to use: apply mechanically rubber tube 5 outside head plate 1, transition joint device 2, pull bar 3 and steel pipe plug 4, as shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4 according to design drawing.
Second step, as shown in Figure 5, by stretching for dish round steel 6 and stretch until the diameter length of regulation, and cuts material according to designing requirement essence, will a pier nose of dish round steel.
3rd step, carries out roll welding by ready round steel, spiral bar, forms outer reinforcing cage 7 and is loaded on the stake push pipe joint reinforcement cage muscle 8 of outer reinforcing cage inside, as shown in FIG. 6 and 7.
4th step, schematic diagram as shown in Figure 8, by the one-sided welding rod 3 of outer reinforcing cage 7 welded in the 3rd step, and strengthens stake push pipe joint putting into outer reinforcing cage 7 after cage muscle 8 puts end plate 9.
5th step, schematic diagram as shown in Figure 9, saves transition joint device 2 and the stake push pipe in the 4th step and strengthens cage muscle 8 and outer reinforcing cage 7 is connected, and be welded on outer reinforcing cage 7 with M shape by ready strut 10.
6th step, schematic diagram as shown in Figure 10, the outer reinforcing cage 7 assembled is packed into steel pipe 13 and fixes with spot welding of end plate, head plate 1 and steel cylinder are assembled, and is fixed by screw tightening, then steel cylinder is welded with end plate, steel cylinder is reserved with air-vent, be embedded in permeability cell 12 at air-vent, and be weldingly fixed on steel cylinder by permeability cell 12, stake push pipe joint is strengthened being welded and fixed by support 11 between cage muscle 8 and steel cylinder.
7th step, inserts steel pipe plug overcoat rubber tube 5 in said structure part.
8th step, an epimerite structure 16, stake coxopodite structure and standard knot structure 15 is produced by above-mentioned steps, and assemble, as shown in figure 11, while it is noted that stake coxopodite structure and standard knot structure do not strengthen cage muscle structure, the structural member assembled is hung in lower punching block 18, then tighten mold closing screw by after upper punching block 18 matched moulds, as shown in figure 12.
9th step, as shown in fig. 13 that schematic diagram, hung by the structural member getting togather mould on metering chassis 19, utilize concrete mixer 20 that the concrete pump be stirred is delivered in steel pipe, feeding terminates to hang centrifuge.
Tenth step, winches to assigned position by centrifugal good punching block, normal temperature maintenance.
11 step, when concrete strength reaches 10% of design load, clamps rubber tube with special fixture and by bolt tightening, drives wire rope at the uniform velocity to advance until steel pipe is extracted with hoist engine.
12 step, when concrete strength reaches 60% of design load, carries out form removal, obtains a push pipe joint, stake bottom tube joint and middle tube coupling.
Its form removal order is specially: loosen pull bar silk, removal end cap, removal patrix, hangs out tube coupling from punching block
13 step, schematic diagram as shown in figure 14, is undertaken assembled by stake push pipe joint 23, stake bottom tube joint 22 and middle tube coupling 21 after utilizing reinforcing bar line to box out through steel tube place, and carries out stretch-draw, forms post stretching heavy caliber SC shaped steel and mixes stake.
Stretch-draw is carried out at twice, the 30%-40% of design load is got in first time stretch-draw, when compressive strength of condensing reaches 30MPa, period must not be allocated and transported or be moved, Shi Hanzhang is to design load again, the active force of steel strand anchoring posttension pulling force should with duct center superposition, should slip casting in time after steel strand tension, prevent steel strand from becoming rusty turbid.
When stretch-draw is carried out to steel strand, adopt jack and oil meter, and jack and oil meter must be supporting, and periodic maintenance and verification.
In above-mentioned steps, carry out assembled before cleaning reserving hole channel, ensure duct clean unimpeded, assembled front worn tube coupling section laitance, concordant, greasy dirt, smooth be coated in tube coupling head by full uniformly for cementing agent; Look into adjustment to splicing station car test before splicing, time assembled, obvious mark is made in corresponding preformed hole position.
Grouting cement material should meet GB175, mixing water and additive should meet the regulation of JTS202, slip casting should under upwards hole carry out, cement paste by one end of stake to other end force feed, mud jacking should be slowly even, must not interrupt, treat that gas outlet has underflow to flow out and closes gas outlet valve, keep 2min, 0.4-0.6MPa pressure, after slip casting, cement paste compressive strength does not reach 28MPa or cement slurry adhesion stress when not reaching 0.2KN/mm, Big Pipe Pile must not handling in any form, mobile, loosen ground tackle, fixture can adopt autogenous cutting to carry out, but otch should not to rain 50mm from ground tackle, prevent ground tackle from annealing, cutting is put to open and is answered symmetry, mutual intersection is carried out.
In the present invention, GB/5224 relevant regulations should be met for selecting of steel strand, processing for ground tackle and fixture should meet GB/14370 relevant regulations, should meet the requirement that specifies of design stretch-draw, should meet GB/2567 relevant regulations for selecting of cementing agent for selecting of jack.
The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. heavy caliber SC shaped steel mixes stake or a post production technology, it is characterized in that: described step is:
A) first, the matching appliances needing to use is produced according to design drawing: head plate, transition joint device, pull bar and steel pipe plug overcoat rubber tube;
B) by stretching for dish round steel and stretch until the diameter length of regulation, and material is cut according to designing requirement essence, will a pier nose of dish round steel;
C) ready round steel, spiral bar are carried out roll welding, form outer reinforcing cage and be loaded on the stake push pipe joint reinforcement cage muscle of outer reinforcing cage inside;
D) the one-sided welding rod of outer reinforcing cage will welded in step c, and stake push pipe joint is strengthened after cage muscle puts end plate, put into outer reinforcing cage;
E) transition joint device and the stake push pipe in steps d are saved strengthen cage muscle and outer reinforcing cage is connected, and ready strut is welded on outer reinforcing cage with M shape;
F) the outer reinforcing cage assembled packed into steel pipe and fix with spot welding of end plate, head plate and steel cylinder are assembled, and fixed by screw tightening, then steel cylinder is welded with end plate, steel cylinder is reserved with air-vent, be embedded in permeability cell at air-vent, and be weldingly fixed on steel cylinder by permeability cell, stake push pipe joint is strengthened being fixed by supporting welding between cage muscle and steel cylinder;
G) steel pipe plug overcoat rubber tube is inserted in said structure part;
H) an epimerite structure, stake coxopodite structure and standard knot structure is produced by above-mentioned steps, and assemble, while it is noted that stake coxopodite structure and standard knot structure do not strengthen cage muscle structure, the structural member assembled is hung in punching block, and tightens mold closing screw;
I) hung by the structural member getting togather mould on metering chassis, the concrete pump that concrete pump handlebar is stirred is delivered in steel pipe, and feeding terminates to hang centrifuge;
J) centrifugal good punching block is winched to assigned position, normal temperature maintenance;
K) when concrete strength reaches 10% of design load, clamp rubber tube with special fixture and by bolt tightening, drive wire rope at the uniform velocity to advance until steel pipe is extracted with hoist engine;
L) when concrete strength reaches 60% of design load, carry out form removal, obtain a push pipe joint, stake bottom tube joint and middle tube coupling;
M) after utilizing reinforcing bar line to box out through steel tube place, stake push pipe is saved, stake bottom tube saves and middle tube coupling carries out assembled, and carry out stretch-draw, form post stretching heavy caliber SC shaped steel and mix stake.
2. heavy caliber SC shaped steel according to claim 1 mixes stake or post production technology, it is characterized in that: in described step l, and form removal order is specially: loosen pull bar silk, removal end cap, removal patrix, hangs out tube coupling from punching block.
3. heavy caliber SC shaped steel according to claim 1 mixes stake or post production technology, it is characterized in that: in described step m, cleaning reserving hole channel before assembled, ensure the clean unimpeded of duct, assembled front worn tube coupling section laitance, concordant, greasy dirt, and smooth be coated in tube coupling head by full uniformly for cementing agent; Look into adjustment to splicing station car test before splicing, time assembled, obvious mark is made in corresponding preformed hole position.
4. heavy caliber SC shaped steel according to claim 1 mixes stake or post production technology, it is characterized in that: in described step m, when carrying out stretch-draw to steel strand, adopts jack and oil meter, and jack and oil meter must be supporting, and periodic maintenance and verification.
5. heavy caliber SC shaped steel according to claim 1 mixes stake or post production technology, it is characterized in that: in described step m, stretch-draw is carried out at twice, the 30%-40% of design load is got in first time stretch-draw, and when compressive strength of condensing reaches 30MPa, period must not be allocated and transported or be moved, Shi Hanzhang is to design load again, the active force of steel strand anchoring posttension pulling force should with duct center superposition, should slip casting in time after steel strand tension, prevent steel strand from becoming rusty turbid.
6. heavy caliber SC shaped steel according to claim 5 mixes stake or post production technology, it is characterized in that: described grouting cement material should meet GB175, mixing water and additive should meet the regulation of JTS202, slip casting should under upwards hole carry out, cement paste by one end of stake to other end force feed, mud jacking should be slowly even, must not interrupt, treat that gas outlet has underflow to flow out and closes gas outlet valve, keep 2min, 0.4-0.6MPa pressure, after slip casting, cement paste compressive strength does not reach 28MPa or cement slurry adhesion stress when not reaching 0.2KN/mm, Big Pipe Pile must not handling in any form, mobile, loosen ground tackle, fixture can adopt autogenous cutting to carry out, but otch should not to rain 50mm from ground tackle, prevent ground tackle from annealing, cutting is put to open and is answered symmetry, mutual intersection is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510369928.1A CN105019450B (en) | 2015-06-30 | 2015-06-30 | Production process of large-caliber SC shape steel mixed pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510369928.1A CN105019450B (en) | 2015-06-30 | 2015-06-30 | Production process of large-caliber SC shape steel mixed pile |
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| CN105019450A true CN105019450A (en) | 2015-11-04 |
| CN105019450B CN105019450B (en) | 2017-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278013A (en) * | 2021-12-08 | 2022-04-05 | 索泰克(北京)岩土科技有限公司 | Steel reinforcement cage of detachable steel strand wires owner muscle and supporting construction thereof |
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| JP2002302939A (en) * | 2001-04-10 | 2002-10-18 | Ohbayashi Corp | Spacer for joint part in continuous underground wall |
| CN1560380A (en) * | 2004-02-27 | 2005-01-05 | 胡柏英 | Structure of precast rainforced concrete tubular pile and manufacture method thereof |
| CN1746434A (en) * | 2005-07-22 | 2006-03-15 | 上海二十冶金混凝土构件有限公司 | Centrifugal tubular pile with concrete of thin-wall steel pipe and production thereof |
| CN102166788A (en) * | 2011-01-26 | 2011-08-31 | 江苏建华管桩有限公司 | Production method of pretensioning prestressed concrete dynamic load piles |
| CN102337742A (en) * | 2011-07-26 | 2012-02-01 | 杭州固华复合材料科技有限公司 | Prestressed composite superimposed large-diameter tube pile and manufacturing method thereof |
| CN103334427A (en) * | 2013-07-22 | 2013-10-02 | 吴广怀 | Irregularly-shaped prefabricated high-strength concrete thin-wall steel pipe pile (TSC) |
-
2015
- 2015-06-30 CN CN201510369928.1A patent/CN105019450B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002302939A (en) * | 2001-04-10 | 2002-10-18 | Ohbayashi Corp | Spacer for joint part in continuous underground wall |
| CN1560380A (en) * | 2004-02-27 | 2005-01-05 | 胡柏英 | Structure of precast rainforced concrete tubular pile and manufacture method thereof |
| CN1746434A (en) * | 2005-07-22 | 2006-03-15 | 上海二十冶金混凝土构件有限公司 | Centrifugal tubular pile with concrete of thin-wall steel pipe and production thereof |
| CN102166788A (en) * | 2011-01-26 | 2011-08-31 | 江苏建华管桩有限公司 | Production method of pretensioning prestressed concrete dynamic load piles |
| CN102337742A (en) * | 2011-07-26 | 2012-02-01 | 杭州固华复合材料科技有限公司 | Prestressed composite superimposed large-diameter tube pile and manufacturing method thereof |
| CN103334427A (en) * | 2013-07-22 | 2013-10-02 | 吴广怀 | Irregularly-shaped prefabricated high-strength concrete thin-wall steel pipe pile (TSC) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278013A (en) * | 2021-12-08 | 2022-04-05 | 索泰克(北京)岩土科技有限公司 | Steel reinforcement cage of detachable steel strand wires owner muscle and supporting construction thereof |
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| CN105019450B (en) | 2017-01-25 |
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Granted publication date: 20170125 Termination date: 20190630 |