CN106182364A - A kind of detachable steel core and the method making pre-stressed concrete hollow beam - Google Patents
A kind of detachable steel core and the method making pre-stressed concrete hollow beam Download PDFInfo
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- CN106182364A CN106182364A CN201610790481.XA CN201610790481A CN106182364A CN 106182364 A CN106182364 A CN 106182364A CN 201610790481 A CN201610790481 A CN 201610790481A CN 106182364 A CN106182364 A CN 106182364A
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- plate body
- steel core
- lobe
- framework
- hinged
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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
- B28B1/00—Producing shaped prefabricated articles from the material
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/06—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed for the production of elongated 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
- E04C3/26—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members prestressed
Abstract
The invention provides a kind of detachable steel core, belong to construction engineering technical field.When it solving existing manufacture hollow beam, steel core die dismantles the technical problems such as inconvenience.This steel core die includes two support components, each support component all includes lobe body one and the lobe body two of strip, the side of lobe body one is hinged with the side of lobe body two, the opposite side of lobe body one and the opposite side of lobe body two are respectively provided with the plate body one and plate body two being bent to form towards same direction, plate body one is hinged with some linking arms one towards plate body two near outer side edges edge, plate body two is hinged with some and linking arm one linking arm two one to one near outer side edges edge, it is additionally provided with along lobe body one and the pull bar of lobe body two length direction between plate body one and plate body two, the end of linking arm one and linking arm two is all hinged on pull bar.The present invention also provides for a kind of method using above-mentioned detachable steel core to make pre-stressed concrete hollow beam.In the present invention, steel core die convenient disassembly is quick.
Description
Technical field
The invention belongs to construction engineering technical field, relate to a kind of detachable steel core and use this detachable steel core
The method making pre-stressed concrete hollow beam.
Background technology
Concrete hollow beam is construction material conventional in architectural engineering, after the precast concrete hollow beam of independent place again
Set up, project progress can be accelerated, save the duration.Hollow-core construction is gone out by Making mold when manufacturing concrete hollow beam,
Himself weight can be alleviated while proof strength, cost-effective.
It is empty that China's patent (publication number: CN101701484A, publication date: 2010-05-05) discloses a kind of armored concrete
Heart beam, long 7～8m, wide 0.2m, high 0.55m, the hole of four the φ 100mm that be arranged in parallel in beam, heart septum 125mm in Kong Yukong,
The lower limb in bottom hole is away from the following 40mm of beam, and topmost the top edge in hole is away from beam top 35mm, the left and right edges in four holes away from
The each 50mm in limit, beam left and right；The most double at the following 15mm of lower identity distance of beam, each 10mm of the right and left lay 2 φ 12 spiral shells
Stricture of vagina reinforcing bar, totally 4, between lay 2 φ 12 spirals laterally side by side, totally 4, each away from beam top 15mm, the right and left
The most vertically lay 1 φ 10 spiral at 10mm, totally 2, and wale 10 reinforcing bars with φ 5 steel wire, longitudinally hoop 38～
45 roads, with concreting.
Above-mentioned patent documentation employs mould when manufacturing reinforced concrete hollow beam, but does not disclose the tool of this grinding tool
Body structure, and the problem that existing mould exists dismounting inconvenience in the process of use.
Summary of the invention
The present invention is directed to the problems referred to above that existing technology exists, it is provided that a kind of detachable steel core, the present invention to solve
Technical problem is that certainly: that how to improve during utilizing steel core die to make pre-stressed concrete hollow beam that it uses is convenient
Property.
The purpose of the present invention can be realized by following technical proposal:
A kind of detachable steel core, it is characterised in that described detachable steel core includes two support components, each described
Prop up support component and all include the lobe body one of strip and the lobe body two of strip, the side of described lobe body one and the one of described lobe body two
Side is hinged, and the opposite side of described lobe body one and the opposite side of lobe body two are respectively provided with the plate being bent to form towards same direction
Body one and plate body two, described plate body one and plate body two be oppositely arranged, described plate body one near outer side edges along be hinged with some towards
The linking arm one of described plate body two, described plate body two some is connected with linking arm one along being hinged with one to one near outer side edges
Arm two, is additionally provided with between described plate body one and plate body two along lobe body one and the pull bar of lobe body two length direction, described linking arm one
All it is hinged on described pull bar with the end of linking arm two.
Its operation principle is as follows: steel core die, for making the hollow-core construction of hollow beam, props up for middle part in casting process
Support.During use, two support components are oppositely arranged, and the outer side edges edge of two plate bodys one leans, the outer side edges of two plate bodys two
Along leaning, two such is propped up support component and is formed ring-type framework, and its cross section is substantially in " mouth " subtype.Now linking arm one with
Plate body one and plate body two just to setting, are strutted, it is ensured that whole steel core die by linking arm two by linking arm one and linking arm two
Reliability；At two support component outer peripheral face casting concretes, thus form hollow beam, after concrete setting,
Pull pull bar so that linking arm one staggers with the end of linking arm two, it is impossible to form vertical support, and by linking arm one
Pull plate body one and plate body two to draw close in opposite directions with linking arm two, i.e. lobe body one and lobe body two relatively rotates, and two support components are equal
It is such, thus completes gathering action, it is possible to take out smoothly from hollow beam, very convenient.
In above-mentioned detachable steel core, described lobe body one is one-body molded with plate body one, described lobe body two and plate body two
One-body molded, it is provided with some reinforcements between described lobe body one and plate body one and between described lobe body two and plate body two, described
Reinforcement is distributed along the length direction uniform intervals of lobe body one and lobe body two.So ensure that whole lobe body one and lobe body two
Support strength, when pulling pull bar, it is also possible to makes lobe body one and lobe body two quickly close up, thus aspect takes out steel core die.
In above-mentioned detachable steel core, described plate body one is hinged with some support arms towards described plate body two
One, described plate body two is hinged with some and support arm one support arm two one to one, one end of described linking arm one is passed through
Bolt is hinged with the end of described support arm one, and the other end of described linking arm one is hinged with described pull bar by bolt；
One end of described linking arm two is hinged by the end of bolt with described support arm two, and the other end of described linking arm two passes through
Bolt is hinged with described pull bar.Further, described support arm one is arranged along the length direction uniform intervals of lobe body one.So
While ensure that plate body one position relative with plate body two is stable, also can realize the receipts of plate body one and plate body two more flexibly
Hold together.
In above-mentioned detachable steel core, described plate body one is relative to described lobe body one 90-degree bent, described plate body two-phase
For described lobe body two 90-degree bent, described plate body one is respectively provided with bevelling with the bending place of plate body two.Steel core die is after supporting
The framework of " mouth " font can be formed, by arranging bevelling, effectively prevent stuck phenomenon, convenient smooth and easy during dismounting.
In above-mentioned detachable steel core, the inwall of described lobe body one and lobe body two also has along lobe body one and lobe body
The reinforcement fin that two length directions are arranged.The support strength of steel core die is strengthened further by strengthening fin.
In above-mentioned detachable steel core, described detachable steel core also includes fixing bar, when the one of described fixing bar
When end is resisted against on the inwall of described plate body one, the other end of described fixing bar can be resisted against on the inwall of described plate body two；
The middle part of described fixing bar is further opened with the installing hole being connected with described pull bar.After steel core die supports, by fixing bar
One end be resisted against on the inwall of plate body one, the other end is resisted against on the inwall of plate body two；The middle part of fixing bar is passed through with pull bar
Fastening screw realizes both connection in being plugged in installing hole, thus ensures steady in concreting process of whole steel core die
Solidity, when needing to dismantle steel core die, first unclamps and takes out fixing bar, pulling pull bar just can realize the gathering of steel core die smoothly.This
Structure is easy to use and reliable.
In above-mentioned detachable steel core, described pull bar is further opened with through hole near end.Can by this through hole
It is easy to wear stay cord or drag hook, thus conveniently pulls pull bar to drive the gathering of steel core die.
As preferably, in the technical program, corrugated pipe pipeline uses high density polyethylene (HDPE) (HDPE) plastic film capicitor.
The present invention also provides for a kind of method using above-mentioned detachable steel core to make pre-stressed concrete hollow beam, this
Bright to be solved technical problem is that: how to improve the intensity of pre-stressed concrete hollow beam and the convenience of processing.
The purpose of the present invention can be realized by following technical proposal:
A kind of method using detachable steel core to make pre-stressed concrete hollow beam, it is characterised in that in the method
Comprise the steps of
A, installation framework of steel reinforcement: building framework of steel reinforcement on level land, framework of steel reinforcement is strip, the cross section of framework of steel reinforcement
In " mouth " font；
B, installation peripheral board: at the fixed peripheral board in the both sides of framework of steel reinforcement, peripheral board abuts in the lateral surface of framework of steel reinforcement；
C, installation corrugated tube: fixed corrugated tube in framework of steel reinforcement, corrugated tube is arranged along the length direction of framework of steel reinforcement, ripple
Stricture of vagina pipe is distributed in the both sides of framework of steel reinforcement, and the end of described framework of steel reinforcement is stretched out at the two ends of corrugated tube；
D, installation anchoring part: at the fixed anchoring part in the two ends of framework of steel reinforcement, with spacer bar, anchoring part is positioned and fixed, ripple
The two ends of stricture of vagina pipe are inserted in the horn mouth of two anchoring parts respectively, and wrap up with gummed paper in junction, and the surface of anchoring part is entered with sponge
Row parcel；
E, placement steel core die: being placed to framework of steel reinforcement by the steel core die that can dismantle, steel core die is positioned at framework of steel reinforcement
In hollow structure and the outer peripheral face of steel core die is near the medial surface of framework of steel reinforcement；
F, casting concrete: casting concrete in framework of steel reinforcement；
G, dismounting steel core die: when, after concrete setting, dismantling and take out the steel core die in framework of steel reinforcement；
H, mud jacking are constructed: one end of corrugated tube is evacuation end, in evacuation end vacuum pump is by duct more than 80%
Air extract out, and ensure duct vacuum-0.06～-0.1MPa, the other end of corrugated tube is mud jacking end, in mud jacking side pressure
Enter the cement mortar that the ratio of mud is 0.3～0.4, when cement mortar is when the outflow of evacuation end and denseness are essentially identical with mud jacking end, adopt
Pressure with 0.5～0.7MPa carries out pressurize 2min.
Using vaccum pulp absorbing construction technology in the technical program, the micro-foam in cement mortar slurry is starched and thin pulp is in negative pressure of vacuum
Lower rate first flows into negative-pressure container, and after thick paste flows out, in the duct that corrugated tube is formed, the denseness of slurry can keep consistent, makes water
Mud slurry is closely knit, and intensity is guaranteed.The duct that corrugated tube is formed under vacuum conditions, decreases due to duct height bending
And making the head difference that slurry self formed, it is simple to slurry fills whole duct, especially some special-shaped key positions, for curved
Type, U-shaped, vertical prestressing bar more can embody the superiority of vaccum pulp absorbing.Which overcome the deficiency of tradition mud-jacking technology, improve
The plumpness of hole path pressure grouting and density, substantially increase the durability of structure；The bubble being mixed in slurry can be eliminated simultaneously,
Thus avoid harmful water and accumulate in the probability near presstressed reinforcing steel, prevent the corrosion of presstressed reinforcing steel；Improve prestressing force to mix
The intensity of solidifying soil hollow beam and service life, simultaneously in work progress the most convenient reliably.
In the above-mentioned method using detachable steel core to make pre-stressed concrete hollow beam, step f and g it
Between, also use hole cleaner that corrugated tube is checked, and the corrugated pipe pipeline of blocking is cleared up.Cleaning corrugated tube pipe in time
Road, places blocking.
Use in the method that detachable steel core makes pre-stressed concrete hollow beam above-mentioned, in step h, also enter
Row lashing steel strand wires, installation anchorage and stretch-draw steel bundle, then install block and install mud jacking iron pipe；When block is installed, should be by anchor
Clean out in mud jacking mouth on seating face and screw, coat fluid sealant on anchoring part surface and block faying face, and note block
On steam vent should be vertically upward；The mud jacking iron pipe assembled in advance is screwed on anchoring part.
Use in the method that detachable steel core makes pre-stressed concrete hollow beam above-mentioned, in step h, also enter
Row evacuation end waste discharge and two ends, duct block upper air-vent waste discharge；When the air filter of evacuation end has slurry to pass through
Time, should close immediately and lead to the valve of evacuator and open the valve that leads to waste pipe.
Compared with prior art, the steel core die in the present invention is made up of multiple lobe bodies, is hinged and passes through between lobe body
Linking arm is attached supporting, and pulls linking arm just can be rapidly completed gathering action by pull bar, it is possible to suitable from hollow beam
Profit is taken out, very convenient.It addition, the present invention uses during making pre-stressed concrete hollow beam vaccum pulp absorbing construction work
Skill, improves plumpness and the density of hole path pressure grouting, substantially increases the durability of structure.
Accompanying drawing explanation
Fig. 1 is the perspective view of this detachable steel core.
Fig. 2 is the perspective view of a support component in this detachable steel core.
In figure, 1, lobe body one；2, lobe body two；3, plate body one；4, plate body two；5, linking arm one；6, linking arm two；7, draw
Bar；71, through hole；8, fixing bar；9, reinforcement；10, fin is strengthened；11, support arm one；12, support arm two；13, bevelling；
14, hinge；100, support component is propped up.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one
As depicted in figs. 1 and 2, this detachable steel core includes two support components 100, and each support component 100 all wraps
Including the lobe body 1 of strip and the lobe body 22 of strip, the side of the side of lobe body 1 and lobe body 22 is cut with scissors by hinge 14 phase
Connecing, the opposite side of lobe body 1 and the opposite side of lobe body 22 are respectively provided with plate body 1 He being bent to form towards same direction
Plate body 24, plate body 1 and plate body 24 are oppositely arranged, and plate body 1 is hinged with some companies towards plate body 24 near outer side edges edge
Connecing arm 1, plate body 24 is hinged with some and linking arm 1 linking arm 26 one to one, plate body 1 He near outer side edges edge
It is additionally provided with between plate body 24 along lobe body 1 and the pull bar 7 of lobe body 22 length direction, linking arm 1 and the end of linking arm 26
All it is hinged on pull bar 7.Steel core die is for making the hollow-core construction of hollow beam, for midfoot support in casting process.Use
Time, two support components 100 are oppositely arranged, and the outer side edges edge of two plate bodys 1 leans, the outer side edges edge of two plate bodys 24
Leaning, two such is propped up support component 100 and is formed ring-type framework, and its cross section is substantially in " mouth " subtype.Now linking arm 1
With linking arm 26 just to setting, by linking arm 1 and linking arm 26, plate body 1 and plate body 24 are strutted, it is ensured that whole
The reliability of steel core die；At two support component 100 outer peripheral face casting concretes, thus form hollow beam, work as concrete
After solidification, pull pull bar 7 so that linking arm 1 staggers with the end of linking arm 26, it is impossible to form vertical support, and
Pulling plate body 1 and plate body 24 to draw close in opposite directions by linking arm 1 and linking arm 26, i.e. lobe body 1 is relative with lobe body 22 turns
Dynamic, two support components 100 are all such, thus complete gathering action, it is possible to take out smoothly from hollow beam, very convenient.
It is further opened with through hole 71 near end on pull bar 7, can be easy to wear stay cord or drag hook by this through hole 71, thus conveniently pull
Pull bar 7 drives the gathering of steel core die；In the present embodiment, corrugated pipe pipeline uses high density polyethylene (HDPE) (HDPE) plastic film capicitor.
Further, as in figure 2 it is shown, lobe body 1 is one-body molded with plate body 1, lobe body 22 is one-body molded with plate body 24,
Being provided with some reinforcements 9 between lobe body 1 and plate body 1 and between lobe body 22 and plate body 24, reinforcement 9 is along lobe body 1
And the length direction uniform intervals distribution of lobe body 22；So ensure that whole lobe body 1 and the support strength of lobe body 22,
When pulling pull bar 7, it is also possible to make lobe body 1 and lobe body 22 quickly close up, thus aspect takes out steel core die；On plate body 1 hinged
There are some support arms 1 towards plate body 24, plate body 24 is hinged with some and support arm 1 support arm one to one
2 12, one end of linking arm 1 is hinged by the end of bolt with support arm 1, and the other end of linking arm 1 passes through spiral shell
Bolt is hinged with pull bar 7；One end of linking arm 26 is hinged by the end of bolt with support arm 2 12, linking arm 26 another
One end is hinged with pull bar 7 by bolt.Further, support arm 1 is arranged along the length direction uniform intervals of lobe body 1,
While so ensure that plate body 1 position relative with plate body 24 is stable, also can realize plate body 1 and plate more flexibly
The gathering of body 24.
In the present embodiment, plate body 1 is relative to lobe body 1 90-degree bent, and plate body 24 is relative to lobe body 22 90-degree bent, plate
Body 1 is respectively provided with bevelling 13 with the bending place of plate body 24；Also have along lobe body 1 on the inwall of lobe body 1 and lobe body 22
And the reinforcement fin 10 that lobe body 22 length direction is arranged, the support strength of steel core die is strengthened further by strengthening fin 10.
As in figure 2 it is shown, detachable steel core also includes fixing bar 8, when one end of fixing bar 8 is resisted against in plate body 1
Time on wall, the other end of fixing bar 8 can be resisted against on the inwall of plate body 24；The middle part of fixing bar 8 is further opened with and pull bar 7
The installing hole being connected, after steel core die supports, is resisted against one end of fixing bar 8 on the inwall of plate body 1, and the other end supports
Lean against on the inwall of plate body 24；The middle part of fixing bar 8 realizes both in being plugged in installing hole with pull bar 7 by fastening screw
Connect, thus ensure whole steel core die steadiness in concreting process, when needing to dismantle steel core die, first unclamp and take
Go out fixing bar 8, pull pull bar 7 just can realize the gathering of steel core die smoothly.
Embodiment two
The present embodiment is the method using the detachable steel core in embodiment one to make pre-stressed concrete hollow beam, should
Method comprises the steps of
A, installation framework of steel reinforcement: building framework of steel reinforcement on level land, framework of steel reinforcement is strip, the cross section of framework of steel reinforcement
In " mouth " font；
B, installation peripheral board: at the fixed peripheral board in the both sides of framework of steel reinforcement, peripheral board abuts in the lateral surface of framework of steel reinforcement；
C, installation corrugated tube: fixed corrugated tube in framework of steel reinforcement, corrugated tube is arranged along the length direction of framework of steel reinforcement, ripple
Stricture of vagina pipe is distributed in the both sides of framework of steel reinforcement, and the end of framework of steel reinforcement is stretched out at the two ends of corrugated tube；
D, installation anchoring part: at the fixed anchoring part in the two ends of framework of steel reinforcement, with spacer bar, anchoring part is positioned and fixed, ripple
The two ends of stricture of vagina pipe are inserted in the horn mouth of two anchoring parts respectively, and wrap up with gummed paper in junction, and the surface of anchoring part is entered with sponge
Row parcel；
E, placement steel core die: being placed to framework of steel reinforcement by the steel core die that can dismantle, steel core die is positioned at framework of steel reinforcement
In hollow structure and the outer peripheral face of steel core die is near the medial surface of framework of steel reinforcement；
F, casting concrete: casting concrete in framework of steel reinforcement；
Then use hole cleaner that corrugated tube is checked, and the corrugated pipe pipeline of blocking is cleared up.Cleaning in time
Corrugated pipe pipeline, places blocking.
G, dismounting steel core die: when, after concrete setting, dismantling and take out the steel core die in framework of steel reinforcement；
H, mud jacking are constructed: one end of corrugated tube is evacuation end, in evacuation end vacuum pump is by duct more than 80%
Air extract out, and ensure duct vacuum-0.06～-0.1MPa, the other end of corrugated tube is mud jacking end, in mud jacking side pressure
Enter the cement mortar that the ratio of mud is 0.3～0.4, when cement mortar is when the outflow of evacuation end and denseness are essentially identical with mud jacking end, adopt
Pressure with 0.5～0.7MPa carries out pressurize 2min.
In this step, also carry out lashing steel strand wires, anchorage and stretch-draw steel bundle are installed, then block is installed and mud jacking is installed
Iron pipe；When block is installed, should clean out in the mud jacking mouth on anchoring part surface and screw, at anchoring part surface and block faying face
Coat fluid sealant, and notice that the steam vent in block should be vertically upward；The mud jacking iron pipe assembled in advance is screwed on anchoring part；Separately
Outward, in this step, evacuation end waste discharge and two ends, duct block upper air-vent waste discharge are also carried out；Air filter when evacuation end
Clear device there is slurry through out-of-date, should close immediately and lead to the valve of evacuator and open the valve that leads to waste pipe.
Using vaccum pulp absorbing construction technology in the present embodiment, the micro-foam in cement mortar slurry is starched and thin pulp is under negative pressure of vacuum
Rate first flows into negative-pressure container, and after thick paste flows out, in the duct that corrugated tube is formed, the denseness of slurry can keep consistent, makes cement
Slurry slurry is closely knit, and intensity is guaranteed.The duct that corrugated tube is formed under vacuum conditions, decreases due to duct height bending
Make the head difference that slurry self is formed, it is simple to slurry fills whole duct, especially some special-shaped key positions, for curved, U
Type, vertical prestressing bar more can embody the superiority of vaccum pulp absorbing.Which overcome the deficiency of tradition mud-jacking technology, improve duct
The plumpness of mud jacking and density, substantially increase the durability of structure；The bubble being mixed in slurry can be eliminated, so simultaneously
Avoid harmful water and accumulate in the probability near presstressed reinforcing steel, prevent the corrosion of presstressed reinforcing steel；Improve prestressed concrete
The intensity of hollow beam and service life, simultaneously in work progress the most convenient reliably.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Although the most more employing 1, lobe body one；2, lobe body two；3, plate body one；4, plate body two；5, linking arm one；6、
Linking arm two；7, pull bar；71, through hole；8, fixing bar；9, reinforcement；10, fin is strengthened；11, support arm one；12, support arm
Two；13, bevelling；14, hinge；100, prop up the terms such as support component, but be not precluded from using the probability of other term.Use this
A little terms are only used to describe and explain more easily the essence of the present invention；It is construed as any additional restriction
It is all contrary with spirit of the present invention.
Claims (8)
1. a detachable steel core, it is characterised in that described detachable steel core includes two support components (100), each
Described support component (100) all includes the lobe body one (1) of strip and the lobe body two (2) of strip, the one of described lobe body one (1)
Side is hinged with the side of described lobe body two (2), and the opposite side of described lobe body one (1) and the opposite side of lobe body two (2) are respectively
Having the plate body one (3) and plate body two (4) being bent to form towards same direction, described plate body one (3) is relative with plate body two (4) to be set
Putting, described plate body one (3) is hinged with some linking arms one (5) towards described plate body two (4), described plate body near outer side edges edge
Two (4) is some with linking arm one (5) linking arm two (6) one to one along being hinged with near outer side edges, described plate body one (3) and
Be additionally provided with along lobe body one (1) and the pull bar (7) of lobe body two (2) length direction between plate body two (4), described linking arm one (5) and
The end of linking arm two (6) is all hinged on described pull bar (7).
Detachable steel core the most according to claim 1, it is characterised in that described lobe body one (1) is with plate body one (3) integrally
Molding, described lobe body two (2) is one-body molded with plate body two (4), between described lobe body one (1) and plate body one (3) and described lobe
Being provided with some reinforcements (9) between body two (2) and plate body two (4), described reinforcement (9) is along lobe body one (1) and lobe body two (2)
Length direction uniform intervals is distributed.
Detachable steel core the most according to claim 1 and 2, it is characterised in that be hinged with some on described plate body one (3)
Towards the support arm one (11) of described plate body two (4), described plate body two (4) is hinged with some one (11) 1 a pair with support arm
The support arm two (12) answered, one end of described linking arm one (5) is hinged by the end of bolt with described support arm one (11),
The other end of described linking arm one (5) is hinged with described pull bar (7) by bolt；One end of described linking arm two (6) is passed through
Bolt is hinged with the end of described support arm two (12), and the other end of described linking arm two (6) is by bolt and described pull bar
(7) it is hinged.
Detachable steel core the most according to claim 1 and 2, it is characterised in that described plate body one (3) is relative to described lobe
Body one (1) 90-degree bent, described plate body two (4) is relative to described lobe body two (2) 90-degree bent, described plate body one (3) and plate body two
(4) bending place is respectively provided with bevelling (13).
Detachable steel core the most according to claim 1 and 2, it is characterised in that described lobe body one (1) and lobe body two (2)
Inwall on also there is the reinforcement fin (10) arranged along lobe body one (1) and lobe body two (2) length direction.
Detachable steel core the most according to claim 1 and 2, it is characterised in that described detachable steel core also includes solid
Fixed pole (8), when on the inwall that one end of described fixing bar (8) is resisted against described plate body one (3), described fixing bar (8) another
One end can be resisted against on the inwall of described plate body two (4)；The middle part of described fixing bar (8) is further opened with and described pull bar (7)
The installing hole being connected.
Detachable steel core the most according to claim 1 and 2, it is characterised in that described pull bar (7) is upper also to be opened near end
It is provided with through hole (71).
8. one kind is used the method that detachable steel core makes pre-stressed concrete hollow beam, it is characterised in that wrap in the method
Containing following steps:
A, install framework of steel reinforcement: building framework of steel reinforcement on level land, framework of steel reinforcement is strip, the cross section of framework of steel reinforcement in
" mouth " font；
B, installation peripheral board: at the fixed peripheral board in the both sides of framework of steel reinforcement, peripheral board abuts in the lateral surface of framework of steel reinforcement；
C, installation corrugated tube: fixed corrugated tube in framework of steel reinforcement, corrugated tube is arranged along the length direction of framework of steel reinforcement, corrugated tube
Being distributed in the both sides of framework of steel reinforcement, the end of described framework of steel reinforcement is stretched out at the two ends of corrugated tube；
D, installation anchoring part: at the fixed anchoring part in the two ends of framework of steel reinforcement, with spacer bar, anchoring part is positioned and fixed, corrugated tube
Two ends insert respectively in the horn mouth of two anchoring parts, and wrap up with gummed paper in junction, the surface of anchoring part is wrapped with sponge
Wrap up in；
E, placement steel core die: being placed to framework of steel reinforcement by the steel core die that can dismantle, steel core die is positioned at the hollow of framework of steel reinforcement
In structure and the outer peripheral face of steel core die is near the medial surface of framework of steel reinforcement；
F, casting concrete: casting concrete in framework of steel reinforcement；
G, dismounting steel core die: when, after concrete setting, dismantling and take out the steel core die in framework of steel reinforcement；
H, mud jacking are constructed: one end of corrugated tube is evacuation end, the sky of more than 80% in evacuation end vacuum pump is by duct
Gas extract out, and ensure duct vacuum-0.06～-0.1MPa, the other end of corrugated tube is mud jacking end, enters water in mud jacking side pressure
Gray scale is the cement mortar of 0.3～0.4, when cement mortar is when the outflow of evacuation end and denseness are essentially identical with mud jacking end, uses 0.5
～the pressure of 0.7MPa carries out pressurize 2min.
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| CN201610790481.XA CN106182364A (en) | 2016-08-31 | 2016-08-31 | A kind of detachable steel core and the method making pre-stressed concrete hollow beam |
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| CN107471414A (en) * | 2017-09-20 | 2017-12-15 | 中铁二十二局集团第三工程有限公司 | A kind of construction method of draw type steel internal mould and pre-cast hollow slab |
| CN108327050A (en) * | 2018-05-10 | 2018-07-27 | 承德绿建建筑节能科技有限公司 | A kind of split type prefabricated board core model mold |
| CN108407057A (en) * | 2018-05-03 | 2018-08-17 | 承德绿建建筑节能科技有限公司 | A kind of prefabricated board core model mold and prefabricated plate combined mould |
| CN108407058A (en) * | 2018-05-08 | 2018-08-17 | 承德绿建建筑节能科技有限公司 | A kind of prefabricated board core model mold |
| CN108425447A (en) * | 2018-05-15 | 2018-08-21 | 承德绿建建筑节能科技有限公司 | A kind of wall body structure with cavity |
| CN113146809A (en) * | 2021-05-17 | 2021-07-23 | 吉林建筑大学设计研究院有限责任公司 | Core-pulling mold of hollow concrete wallboard, preparation method and application |
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| CN107471414A (en) * | 2017-09-20 | 2017-12-15 | 中铁二十二局集团第三工程有限公司 | A kind of construction method of draw type steel internal mould and pre-cast hollow slab |
| CN108407057A (en) * | 2018-05-03 | 2018-08-17 | 承德绿建建筑节能科技有限公司 | A kind of prefabricated board core model mold and prefabricated plate combined mould |
| CN108407057B (en) * | 2018-05-03 | 2023-08-22 | 承德绿建建筑节能科技有限公司 | Prefabricated plate mandrel mould and prefabricated plate assembling die |
| CN108407058A (en) * | 2018-05-08 | 2018-08-17 | 承德绿建建筑节能科技有限公司 | A kind of prefabricated board core model mold |
| CN108407058B (en) * | 2018-05-08 | 2023-09-12 | 承德绿建建筑节能科技有限公司 | Prefabricated plate mandrel mould |
| CN108327050A (en) * | 2018-05-10 | 2018-07-27 | 承德绿建建筑节能科技有限公司 | A kind of split type prefabricated board core model mold |
| CN108327050B (en) * | 2018-05-10 | 2023-08-22 | 承德绿建建筑节能科技有限公司 | Split type prefabricated plate mandrel mould |
| CN108425447A (en) * | 2018-05-15 | 2018-08-21 | 承德绿建建筑节能科技有限公司 | A kind of wall body structure with cavity |
| CN113146809A (en) * | 2021-05-17 | 2021-07-23 | 吉林建筑大学设计研究院有限责任公司 | Core-pulling mold of hollow concrete wallboard, preparation method and application |
| CN113146809B (en) * | 2021-05-17 | 2022-11-08 | 吉林建筑大学 | Core-pulling mold of hollow concrete wallboard, preparation method and application |
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Application publication date: 20161207 |