CN105599132A - Anti-seismic tubular pile production method - Google Patents
Anti-seismic tubular pile production method Download PDFInfo
- Publication number
- CN105599132A CN105599132A CN201510964522.8A CN201510964522A CN105599132A CN 105599132 A CN105599132 A CN 105599132A CN 201510964522 A CN201510964522 A CN 201510964522A CN 105599132 A CN105599132 A CN 105599132A
- Authority
- CN
- China
- Prior art keywords
- pile tube
- production method
- pile
- seismic
- antidetonation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
- B28B21/62—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements circumferential laterally tensioned
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0046—Production methods using prestressing techniques
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides an anti-seismic tubular pile production method and aims at solving the problems of poor flexural performance, fragile-form damage, low anti-seismic performance and limited application existing in the prior art. The anti-seismic tubular pile production method comprises the steps of reinforcement cage manufacturing, end plate installation, concrete manufacturing and casting, prestressed steel bar tensioning, centrifugal tubular pile shaping, tubular pile maintenance, tensioning and arrangement of prestressed steel bars and naming and marking of tubular pile products. The anti-seismic tubular pile production method has the advantages that the ductility and flexural bearing capacity of anti-seismic tubular piles produced by means of the anti-seismic tubular pile production method are improved, the anti-seismic tubular piles have good adaptability to geological conditions, pile bodies are high in concrete strength, compact and beating-resistant, and the anti-seismic tubular piles have stronger penetrability, have better adaptability to the geological condition of large bearing stratum fluctuation change and are suitable for regions having higher requirements for the horizontal bearing capacity of the tubular piles.
Description
Technical field
The present invention is specifically related to the pile foundation material in underground foundation, relates in particular to a kind of antidetonation pile tube production method.
Background technology
Abroad the anti-seismic performance of PHC pile tube is conducted in-depth research, and studied its many-sided improvementMeasure. Its corrective measure mainly comprises: pile tube is filled out core, stirrup is encrypted (stirrup ratio), high-strength stirrup, interpolationNon-prestressing tendon, adopt the presstressed reinforcing steel of high elongation rate and at areas of plasticity hinge sticking glass fiber etc. ItsIn especially encrypt with stirrup and add the most study of non-prestressing tendon, its improvement effect is also the most obvious.
Domestic to the anti-seismic performance research of PHC pile tube almost in blank, the overwhelming majority researchs be all static(al)Test or field trial. And the also state in more original backwardness of the pile tube production technology of domestic manufacturer,Stirrup spacing, prestressed stretch-draw etc. all can not get good guarantee. From introducing PHC pile tube, just do not haveIts anti-seismic performance is carried out to systematic research, could not form the theoretical system of oneself. Domestic PHC pipeStake is that production technology or research level all will be far below abroad. From building, No. 7th, scape garden, lotus flower riverside, ShanghaiEntirety is toppled after event, the domestic anti-seismic performance that just starts to have paid attention to PHC pile tube, and some specifications have all been carried outRevision, but its revision provision is also theoretically unsound.
At present, the conventional prestress high intensity concrete stake pile strength of existing explained hereafter is very high, but bending resistancePoor performance, failure mode is brittle break, when stake occurs after cracking, crack rapid spread, tensile region reinforcing barEnter very soon surrender and deflated state until fracture, have that ultimate bending moment and cracking moment be more or less the same simultaneouslyShortcoming. Due to the flat Lack of support of stake water resistant, therefore, be more than or equal to octave area at seismic fortification intensityIn building foundation design, in base pit engineering, stability of slope engineering, bank-protection works and soft clay area building stakeApplication in base is restricted. The units concerned of provinces and cities such as Fujian, Jiangsu, Tianjin put into effect various restriction pile tubes to be madeWith file, as: pile tube can not be used for 18 layers of above Tall Building Foundation etc.
Therefore, invent a kind of antidetonation pile tube production method and seem very necessary.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of antidetonation pile tube production method, existing to solveTechnology exist anti-bending strength poor, failure mode is brittle break, anti-seismic performance is low, application is restrictedProblem. A kind of antidetonation pile tube production method comprises the steps:
Step 1: the making of steel reinforcement cage;
Step 2: end plate is installed;
Step 3: concrete making and building;
Step 4: the stretch-draw of deformed bar;
Step 5: the centrifugal forming of pile tube;
Step 6: the maintenance of pile tube;
Step 7: putting of deformed bar opened;
Step 8: the name of pile tube product and sign.
Further, in step 1, the making of steel reinforcement cage comprises choosing of deformed bar; Deformed barCutting; Choosing of stirrup; Utilize stirrup and deformed bar to be welded steel reinforcement cage and colligation nonprestressed reinforcement.
Further, utilizing stirrup and deformed bar to be welded in steel reinforcement cage, specifically adopt the welding side of roll weldingFormula, is welded into steel reinforcement cage, and stirrup spacing is 40mm to 50mm.
Further, in colligation nonprestressed reinforcement, specifically select intensity to be not less than HRB400, diameter isThe reinforcing bar binding of 12mm to 18mm, in the steel reinforcement cage inside of moulding, distributes with deformed bar 1:1, adoptsInterval is arranged or and muscle layout.
Further, in step 3, with after on pipe pile die mould, select aggregate most the steel reinforcement cage madeLarge particle diameter must not be greater than 3/4 concrete of the minimum clear distance of reinforcing bar, after forced mixer stirs, adopts firstTwo ends, the cloth order of rear centre is built.
Further, in step 4, by after the pile tube matched moulds of having built, adopt pretensioning mould External prestressed workSkill is carried out the stretch-draw of deformed bar, controls stretch-draw prestressing force value and reinforcing bar stretch value simultaneously.
Further, in step 6, comprise the atmospheric steam curing of pile tube through the maintenance of the pile tube of centrifugal forming;The demoulding of pile tube and the autoclave curing of pile tube.
Further, in the atmospheric steam curing of pile tube, atmospheric steam curing adopts curing in the mold, its maintenanceTechnique is undertaken by precuring, intensification, constant temperature, cooling four-stage, 18 DEG C to 25 DEG C per hour of heating rate,80 DEG C to 90 DEG C of thermostat temperatures.
Further, in the autoclave curing of pile tube, by after tubular pile demoulding by intensification, the constant pressure and constant of boostingTemperature, step-down cooling three phases carry out.
Further, in step 7, the putting Zhang Shunxu and should take symmetry, interlaced put of deformed bar,While putting tension prestress reinforcing bar, the concrete compression strength of pile tube must not be lower than design strength grade of concrete100％。
Compared with prior art, the present invention has following beneficial effect: due to a kind of antidetonation pile tube of the present inventionProduction method is widely used in the pile foundation material in underground foundation. Meanwhile, beneficial effect of the present invention is:
The antidetonation pile tube that the present invention produces has improved pile tube ductility and anti-bending bearing capacity, to geological conditions adaptabilityBy force, concrete strength of pile is high, and closely knit resistance to beating, has stronger penetration capacity, large to supporting course fluctuationsGeological conditions have stronger adaptability, be applicable to the area of having relatively high expectations for pile tube horizontal bearing capacity.
Brief description of the drawings
Fig. 1 is method flow diagram of the present invention.
Fig. 2 is the method flow diagram of the making of steel reinforcement cage of the present invention.
Fig. 3 is the method flow diagram of the maintenance of pile tube of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
In figure:
Embodiment:
If accompanying drawing 1 is to as shown in accompanying drawing 3
The invention provides a kind of antidetonation pile tube production method, comprise,
S101: the making of steel reinforcement cage;
S102: end plate is installed;
S103: concrete making and building;
S104: the stretch-draw of deformed bar;
S105: the centrifugal forming of pile tube;
S106: the maintenance of pile tube;
S107: putting of deformed bar opened;
S108: the name of pile tube product and sign.
Further, in S101, the making of steel reinforcement cage comprises choosing of deformed bar; Deformed barCutting; Choosing of stirrup; Utilize stirrup and deformed bar to be welded steel reinforcement cage and colligation nonprestressed reinforcement.
Further, in S204, specifically adopt the welding manner of roll welding, be welded into steel reinforcement cage, stirrup spacingFor 40mm to 50mm.
Further, in S205, specifically select intensity to be not less than HRB400, diameter is 12mm to 18mmReinforcing bar binding in the steel reinforcement cage inside of moulding, with deformed bar 1:1 distribute, adopt interval arrange or and muscleArrange.
Further, in S103, after the steel reinforcement cage of making is used on pipe pile die mould, select aggregate maximumParticle diameter must not be greater than 3/4 concrete of the minimum clear distance of reinforcing bar, after forced mixer stirs, adopts first twoEnd, the cloth order of rear centre is built.
Further, in S104, by after the pile tube matched moulds of having built, adopt pretensioning mould External prestressed techniqueCarry out the stretch-draw of deformed bar, control stretch-draw prestressing force value and reinforcing bar stretch value simultaneously.
Further, in S106, comprise the atmospheric steam curing of pile tube through the maintenance of the pile tube of centrifugal forming;The demoulding of pile tube and the autoclave curing of pile tube.
Further, in S301, atmospheric steam curing adopts curing in the mold, and its maintaining process is by precuring, literTemperature, constant temperature, cooling four-stage carry out, 18 DEG C to 25 DEG C per hour of heating rate, and 80 DEG C of thermostat temperatures are extremely90℃。
Further, in S303, will after tubular pile demoulding, lower the temperature three by the intensification of boosting, constant voltage constant temperature, step-downThe individual stage carries out.
Further, in S107, the putting Zhang Shunxu and should take symmetry, interlaced put of deformed bar,While putting tension prestress reinforcing bar, the concrete compression strength of pile tube must not be lower than design strength grade of concrete100％。
The antidetonation pile tube that the present invention produces has improved pile tube ductility and anti-bending bearing capacity, to geological conditions adaptabilityBy force, concrete strength of pile is high, and closely knit resistance to beating, has stronger penetration capacity, large to supporting course fluctuationsGeological conditions have stronger adaptability, be applicable to the area of having relatively high expectations for pile tube horizontal bearing capacity.
Utilize technical solutions according to the invention, or those skilled in the art's opening in technical solution of the present inventionGiving, design similar technical scheme, and reach above-mentioned technique effect, is all to fall into guarantor of the present inventionProtect scope.
Claims (10)
1. an antidetonation pile tube production method, is characterized in that, this antidetonation pile tube production method comprises,
Step 1: the making of steel reinforcement cage;
Step 2: end plate is installed;
Step 3: concrete making and building;
Step 4: the stretch-draw of deformed bar;
Step 5: the centrifugal forming of pile tube;
Step 6: the maintenance of pile tube;
Step 7: putting of deformed bar opened;
Step 8: the name of pile tube product and sign.
2. antidetonation pile tube production method as claimed in claim 1, is characterized in that, in step 1, and steelThe making of muscle cage comprises choosing of deformed bar; The cutting of deformed bar; Choosing of stirrup; Utilize hoopMuscle and deformed bar are welded steel reinforcement cage and colligation nonprestressed reinforcement.
3. antidetonation pile tube production method as claimed in claim 2, is characterized in that, is utilizing stirrup and pre-Stress reinforcing bar is welded in steel reinforcement cage, specifically adopts the welding manner of roll welding, is welded into steel reinforcement cage, stirrup spacingFor 40mm to 50mm.
4. antidetonation pile tube production method as claimed in claim 2, is characterized in that, non-prestressed in colligationIn reinforcing bar, specifically select intensity to be not less than HRB400, the reinforcing bar binding that diameter is 12mm to 18mm is becomingThe steel reinforcement cage inside of type, distributes with deformed bar 1:1, adopts interval to arrange or and muscle layout.
5. antidetonation pile tube production method as claimed in claim 1, is characterized in that, in step 3, and willAfter the steel reinforcement cage of making is used on pipe pile die mould, select maximum aggregate size must not be greater than the minimum clear distance of reinforcing bar3/4 concrete, after forced mixer stirs, adopt first two ends, the cloth order of rear centre is carried outBuild.
6. antidetonation pile tube production method as claimed in claim 1, is characterized in that, in step 4, and willAfter the pile tube matched moulds of having built, adopt pretensioning mould External prestressed technique to carry out the stretch-draw of deformed bar, withTime control stretch-draw prestressing force value and reinforcing bar stretch value.
7. antidetonation pile tube production method as claimed in claim 1, is characterized in that, in step 6, and warpThe maintenance of the pile tube of centrifugal forming comprises the atmospheric steam curing of pile tube; The demoulding of pile tube and the high pressure of pile tube steamVapour maintenance.
8. antidetonation pile tube production method as claimed in claim 7, is characterized in that, steams at the normal pressure of pile tubeIn vapour maintenance, atmospheric steam curing adopt curing in the mold, its maintaining process by precuring, intensification, constant temperature, fallTemperature four-stage carries out, 18 DEG C to 25 DEG C per hour of heating rate, 80 DEG C to 90 DEG C of thermostat temperatures.
9. antidetonation pile tube production method as claimed in claim 7, is characterized in that, steams at the high pressure of pile tubeIn vapour maintenance, will after tubular pile demoulding, be undertaken by the intensification of boosting, constant voltage constant temperature, step-down cooling three phases.
10. antidetonation pile tube production method as claimed in claim 7, is characterized in that, in step 7,The putting Zhang Shunxu and should take symmetry, interlaced put of deformed bar, while putting tension prestress reinforcing bar, pile tubeConcrete compression strength must not lower than design strength grade of concrete 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964522.8A CN105599132A (en) | 2015-12-17 | 2015-12-17 | Anti-seismic tubular pile production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964522.8A CN105599132A (en) | 2015-12-17 | 2015-12-17 | Anti-seismic tubular pile production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105599132A true CN105599132A (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510964522.8A Pending CN105599132A (en) | 2015-12-17 | 2015-12-17 | Anti-seismic tubular pile production method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042832A (en) * | 2019-04-11 | 2019-07-23 | 上海大禺预制构件有限公司 | A kind of high-performance tubular pole of included damping device and preparation method thereof |
| CN110281380A (en) * | 2019-07-04 | 2019-09-27 | 福建省大地管桩有限公司 | The manufacturing process of orientation condensation tubular pole |
| CN110792079A (en) * | 2019-09-30 | 2020-02-14 | 江苏东浦管桩有限公司 | Manufacturing process of ultrahigh-strength prestressed concrete pipe pile |
| CN112356260A (en) * | 2020-10-31 | 2021-02-12 | 宁乡宁华新材料有限公司 | Production method of high-strength tubular pile |
| CN114274336A (en) * | 2022-01-12 | 2022-04-05 | 郑州科技学院 | Precast concrete slab maintenance system and maintenance method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59102015A (en) * | 1982-12-02 | 1984-06-12 | Kodama Concrete Kogyo Kk | Concrete pile |
| CN201343726Y (en) * | 2009-06-04 | 2009-11-11 | 河南建华管桩有限公司 | Horizontal force bearing pile |
| CN201420262Y (en) * | 2008-12-23 | 2010-03-10 | 陈子成 | Circular solid preload-stress concrete tubular pile |
| CN202787241U (en) * | 2012-09-26 | 2013-03-13 | 天津港航桩业有限公司 | Concrete tubular pile |
-
2015
- 2015-12-17 CN CN201510964522.8A patent/CN105599132A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59102015A (en) * | 1982-12-02 | 1984-06-12 | Kodama Concrete Kogyo Kk | Concrete pile |
| CN201420262Y (en) * | 2008-12-23 | 2010-03-10 | 陈子成 | Circular solid preload-stress concrete tubular pile |
| CN201343726Y (en) * | 2009-06-04 | 2009-11-11 | 河南建华管桩有限公司 | Horizontal force bearing pile |
| CN202787241U (en) * | 2012-09-26 | 2013-03-13 | 天津港航桩业有限公司 | Concrete tubular pile |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042832A (en) * | 2019-04-11 | 2019-07-23 | 上海大禺预制构件有限公司 | A kind of high-performance tubular pole of included damping device and preparation method thereof |
| CN110042832B (en) * | 2019-04-11 | 2021-04-02 | 上海大禺预制构件有限公司 | High-performance tubular pile with damping device and preparation method thereof |
| CN110281380A (en) * | 2019-07-04 | 2019-09-27 | 福建省大地管桩有限公司 | The manufacturing process of orientation condensation tubular pole |
| CN110792079A (en) * | 2019-09-30 | 2020-02-14 | 江苏东浦管桩有限公司 | Manufacturing process of ultrahigh-strength prestressed concrete pipe pile |
| CN110792079B (en) * | 2019-09-30 | 2021-05-25 | 江苏东浦管桩有限公司 | Manufacturing process of ultrahigh-strength prestressed concrete pipe pile |
| CN112356260A (en) * | 2020-10-31 | 2021-02-12 | 宁乡宁华新材料有限公司 | Production method of high-strength tubular pile |
| CN114274336A (en) * | 2022-01-12 | 2022-04-05 | 郑州科技学院 | Precast concrete slab maintenance system and maintenance method |
| CN114274336B (en) * | 2022-01-12 | 2024-03-15 | 郑州科技学院 | Precast concrete board maintenance system and maintenance method |
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Application publication date: 20160525 |