CN107053440A - A kind of precast plate girder pedestal preparation method - Google Patents
A kind of precast plate girder pedestal preparation method Download PDFInfo
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- CN107053440A CN107053440A CN201710323617.0A CN201710323617A CN107053440A CN 107053440 A CN107053440 A CN 107053440A CN 201710323617 A CN201710323617 A CN 201710323617A CN 107053440 A CN107053440 A CN 107053440A
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- pedestal
- steel plate
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- girder
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Classifications
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- 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
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of precast plate girder pedestal preparation method, step is as follows：1st, the armored concrete and the pre-buried angle steel bound edge of surrounding at an upper portion thereof of pedestal are poured；2nd, processing and fabricating steel plate and several split bolt holes are cut in its longitudinal both sides correspondence；3rd, after the concrete strength of pedestal reaches requirement, lift steel plate and be placed on pedestal and welded with the angle steel of bound edge on pedestal；4th, below steel plate, the angle clip that pedestal longitudinal direction both sides set several and the angle steel of surrounding bound edge is welded on steel plate and pedestal；5th, lift side template and adjust lateral separation position of the side template on steel plate, sealant tape is put between steel plate and side template, with bolt by side template and Interal fixation；6th, steady pin offside template tightening and support are coordinated with inclined support bar.It is prefabricated that the present invention can be widely applied to plate-girder, and model sheetinstallat is quick, flexibly, and workload is few, and dismounting is also convenient for, and greatly shortens the plate-girder prefabricated construction time, and accelerating construction progress reduces engineering cost.
Description
Technical field
The present invention is to be related to building field, more particularly to a kind of precast plate girder pedestal preparation method.
Background technology
It is a very important link in precast plate girder production that highway and municipal works precast plate girder pedestal, which make,.Mesh
Before, there are two kinds of forms using post stretching precast plate girder in same bridge block：Side bar, central sill, its beam slab bottom width are also different, therefore
When making precast plate girder pedestal, two kinds of different side bars of bottom width, central sill pedestals are often made.Side bar in bridge typically compares
Less, its pedestal is short using the time, and because side bar and central sill pedestal bottom width are different, they, which can not circulate turnover from each other, makes
With, poor universality, and it is big to cause Liang Chang to take up an area, side bar pedestal resources idle is wasted, and increases cost of manufacture.
When being made in bridge construction using post stretching precast plate girder pedestal, typically using reinforced concrete foundation, in basis
At a certain distance, Screw arbor with nut at both-ends hole is buried, Screw arbor with nut at both-ends fixes two side templates through the pulling eye of template.And side template
Support on the ground, activity adjustment screw collet is set come adjusting side mould plate setting height(from bottom) by wood block filler and template back rib,
This method model sheetinstallat and supporting process is complicated, dumb, model sheetinstallat and adjustment are slow, influences construction speed；Meanwhile, to drawing spiral shell
Tightening latch hole, split bolt bar, the making of set screw collet also increase construction cost.
Accordingly, it would be desirable to which one kind can effective solution to the problems described above.
The content of the invention
The technical problem to be solved in the present invention is：A kind of precast plate girder pedestal preparation method is provided, can using the present invention
The problem of solving complex process when precast plate girder pedestal makes, too high cost and slow construction speed, meanwhile, it is used in the present invention
Construction material it is recyclable be used in turn, economize on resources, cost is low, with very strong practicality.
The technical scheme that the present invention solves technical problem is as follows：
A kind of precast plate girder pedestal preparation method of the present invention, comprises the following steps：
Step one：The armored concrete of pedestal is poured according to the requirement of design drawing, when pouring, in the top surrounding of pedestal
Pre-buried angle steel bound edge；
Step 2：According to the plate-girder width requirement of design drawing, processing and fabricating steel plate, and corresponded on longitudinal both sides of steel plate
Cut several split bolt holes；
Step 3：After the concrete strength of pedestal reaches more than 90%, with crane hanging component steel plate and pedestal is placed on
On, the position of steel plate is adjusted, the angle steel of surrounding bound edge on steel plate and pedestal is welded；
Step 4：Below steel plate, the longitudinal both sides of pedestal several angle steel with surrounding bound edge on steel plate and pedestal are set
The angle clip of welding；
Step 5：With crane, both sides lift side template above steel plate, according to the plate-girder width requirement of design drawing, adjust
Lateral separation position of the whole side template on steel plate, is put into sealant tape, then in split bolt between steel plate and side template
Side template is fixed with steel plate with bolt at hole；
Step 6：Finally steady pin is coordinated to tense and support side template with inclined support bar.
Further, the armored concrete of pedestal is that strength grade is C25 armored concrete in the step one.
Further, the angle steel specification of pedestal surrounding bound edge is hem width 56mm~70mm, Bian Houwei in the step one
8mm。
Further, the step 2 light plate uses the steel plate that specification is 5mm~6mm for Q235 thickness.
Further, one of a diameter of 24mm and 26mm of the step 2 split shed bolt hole.
Further, the specification of angle clip is hem width 56mm~70mm, side thickness 8mm in the step 4.
Further, bolt, inclined support bar and steady pin are that tool steel makes in the step 5 and step 6, wherein
One of a diameter of 22mm and 24mm of bolt.
Further, side template is made of steel plate in the step 5.
Further, step 2 light plate longitudinal direction per side on adjacent apertures bolt hole spacing for 1000mm~
2000mm。
Further, in the step 4 pedestal longitudinal direction per side adjacent angle clip between spacing for 800mm~
1200mm。
Compared with prior art, the present invention has advantages below：(1) construction technology is simple and convenient to operate, with very strong
Practicality and economic benefit；(2) side template of precast plate girder is directly installed on the steel plate of pedestal, because of the Interal fixation of pedestal,
Without as two side templates be fixed through the pulling eye of side template using Screw arbor with nut at both-ends in the prior art, without with wood block filler and
Template back rib sets activity adjustment screw collet to carry out adjusting side mould plate setting height(from bottom), but directly uses bolt by split bolt hole
It is fixed, so model sheetinstallat is quick, flexible, workload is few, and dismounting is also convenient for, and greatly shortens the plate-girder prefabricated construction time,
Accelerating construction progress, reduces engineering cost；(3) the steel plate both sides of the precast plate girder pedestal are because being the split bolt being correspondingly arranged
Hole, can carry out the regulation of lateral separation, a type pedestal can prefabricated different in width beam according to beam slab width when side template is installed
Plate, without making the different side bar of two or more bottom width, central sill pedestal, can so save beam floor space, reduce beam processed
Pedestal quantity, reduces construction cost；(4) side template coordinates steady pin to be supported fixation using inclined support bar, without with to drawing
Bar so facilitates concreting, vibrates, wipes one's face to carrying out fixing to drawing on side template top；(5) bolt used in fixed bolster plate
(including nut, screw rod, pad), inclined support bar make easy to process, can turnaround cycle use, economize on resources, cost is low, simultaneously
Installing/dismounting speed is fast, construction safety.
Brief description of the drawings
Fig. 1 is the construction schematic diagram of the present invention；
Fig. 2 is the structural representation of inclined support bar in the present invention；
In figure：1. the side template of 4. split bolt hole of pedestal 2. steel plate, 3. angle clip, 5. bolt, 6. inclined support bar 7.
8. steady pin.
Embodiment
In order to preferably explain the present invention, come below in conjunction with the accompanying drawings with specific embodiment in the present invention is furture elucidated
Hold, but present disclosure is not limited only to following examples.
As depicted in figs. 1 and 2, a kind of precast plate girder pedestal preparation method, comprises the following steps：
Step one：The armored concrete of pedestal 1 is poured according to the requirement of design drawing, when pouring, on the top four of pedestal 1
All pre-buried angle steel bound edges；
Step 2：According to the plate-girder width requirement of design drawing, processing and fabricating steel plate 2, and on longitudinal both sides pair of steel plate 2
Several split bolt holes 4 should be cut；
Step 3：After the concrete strength of pedestal 1 reaches more than 90%, with crane hanging component steel plate 2 and platform is placed on
On seat 1, the position of steel plate 2 is adjusted, the angle steel of surrounding bound edge on steel plate 2 and pedestal 1 is welded；
Step 4：Below steel plate 2, the longitudinal both sides of pedestal 1 several and surrounding bound edge on steel plate 2 and pedestal 1 are set
The angle clip 3 of angle steel welding；
Step 5：Side template 7 is lifted in the top both sides of steel plate 2 with crane, according to the plate-girder width requirement of design drawing,
Lateral separation position of the side template 7 on steel plate 2 is adjusted, sealant tape is put between steel plate 2 and side template 7, is then being opened
Side template 7 is fixed with steel plate 2 with bolt 5 at mouth bolt hole 4；
Step 6：Finally steady pin 8 is coordinated to tense and support side template 7 with inclined support bar 6.
According to the requirement of design drawing in the present embodiment, the width of steel plate 2 here is more than the width of pedestal 1, when steel plate 2
When being placed on pedestal 1, the split bolt hole 4 on steel plate 2 can be caused in the outside of the longitudinal direction of pedestal 1, in order to work progress
In, in that context it may be convenient to be fixed at split bolt hole 4, and the lower section clip 3 of steel plate 2 setting；By precast plate girder
Side template 7 is directly installed on the steel plate 2 of pedestal, because of the Interal fixation of pedestal 2, it is only necessary to directly use spiral shell at split bolt hole 4
The row of bolt 5 is fixed, and such side template is quick for installation, flexible, and workload is few, and dismounting is also convenient for, when greatly shortening plate-girder prefabricated construction
Between, accelerating construction progress reduces engineering cost；The both sides of steel plate 2 of the precast plate girder pedestal are cut with several openings because of correspondence
Bolt hole 4, can carry out lateral separation regulation between two opposite sides template 7 according to plate-girder width requirement when side template 7 is installed, make
A type of precast plate girder pedestal, can prefabricated different in width plate-girder, without make the different side bar of two or more bottom width,
Central sill pedestal, can so save Liang Chang floor space, reduce beam making bench quantity, reduce construction cost；Side template 7 is using tiltedly
Support bar 6 coordinate steady pin 8 be supported fixation, without with to pull bar to side template 7 top on carry out to draw fix, so conveniently
Concreting, vibrate and wipe one's face；Bolt 5 used in fixed bolster plate 7 (including nut, screw rod, pad), inclined support bar 6 make
It is easy to process, can turnaround cycle use, economize on resources, cost is low, while installing/dismounting speed is fast, construction safety；Under steel plate 2
Side, the longitudinal both sides of pedestal 1 set the angle clip 3 that the angle steel of several and surrounding bound edge on steel plate 2 and pedestal 1 is welded, and so do
Benefit be to prevent plate-girder side template 7 from installing and occurring during later stage concreting the downwarp of steel plate 2；Steel plate 2 and side template 7 it
Between be put into sealant tape benefit be when preventing concreting generation spillage phenomenon.
The armored concrete of pedestal 1 can be further arranged to strength grade for C25 steel in step one described in the present embodiment
Reinforced concrete.
Described in the present embodiment in step one the angle steel specification of the surrounding bound edge of pedestal 1 can be further arranged to hem width 56mm~
70mm, side thickness is 8mm.
Step 2 light plate described in the present embodiment 2 uses specification to be further arranged to Q235 thickness for 5mm~6mm's
Steel plate.
The diameter of the bolt hole of step 2 split shed described in the present embodiment 4 can be further arranged to it in 24mm and 26mm
One.
The specification of angle clip 3 can be further arranged to hem width 56mm~70mm in step 4 described in the present embodiment, and side is thick
8mm。
Bolt 5, inclined support bar 6 and steady pin 8 can further be set in step 5 described in the present embodiment and step 6
Made for tool steel, wherein the diameter of bolt 5 can be further arranged to one of 22mm and 24mm.
Side template 7 can be further arranged to be made of steel plate in step 5 described in the present embodiment.
The spacing of adjacent apertures bolt hole 4 on the every side in the longitudinal direction of step 2 light plate described in the present embodiment 2 can be further
It is set to 1000mm~2000mm.
Spacing described in the present embodiment in step 4 between adjacent angle clip 3 of the longitudinal direction of pedestal 1 per side can further be set
It is set to 800mm~1200mm.
To the further restriction of construction material specification, the further restriction to the diameter of opening bolt hole 4, right in the present embodiment
The longitudinal direction of steel plate 2 per side on the further restriction of spacing of adjacent apertures bolt hole 4 and adjacent short per side to the longitudinal direction of pedestal 1
Spacing between angle steel 3 is further limited, and advantage of this is that pass through the preferred of these materials and construction technology so that this hair
Bright methods described can produce the plate-girder of satisfactory different in width specification, the need for meeting construction.
Claims (10)
1. a kind of precast plate girder pedestal preparation method, comprises the following steps：
Step one：The armored concrete of pedestal (1) is poured according to the requirement of design drawing, when pouring, on the top four of pedestal (1)
All pre-buried angle steel bound edges；
Step 2：According to the plate-girder width requirement of design drawing, processing and fabricating steel plate (2), and on longitudinal both sides pair of steel plate (2)
Several split bolt holes (4) should be cut；
Step 3：After the concrete strength of pedestal (1) reaches more than 90%, with crane hanging component steel plate (2) and platform is placed on
On seat (1), the position of steel plate (2) is adjusted, the angle steel of surrounding bound edge on steel plate (2) and pedestal (1) is welded；
Step 4：In steel plate (2) lower section, the longitudinal both sides of pedestal (1), several and surrounding bag on steel plate (2) and pedestal (1) are set
The angle clip (3) of the angle steel welding on side；
Step 5：With crane, both sides lift side template (7) above steel plate (2), according to the plate-girder width requirement of design drawing,
Lateral separation position of the side template (7) on steel plate (2) is adjusted, sealant tape is put between steel plate (2) and side template (7),
Then side template (7) is fixed with steel plate (2) with bolt (5) at split bolt hole (4) place；
Step 6：Finally steady pin (8) is coordinated to tense and support side template (7) with inclined support bar (6).
2. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：Pedestal in the step one
(1) armored concrete is that strength grade is C25 armored concrete.
3. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：Pedestal in the step one
(1) the angle steel specification of surrounding bound edge is hem width 56mm~70mm, and side thickness is 8mm.
4. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：The step 2 light plate
(2) steel plate that specification is 5mm~6mm for Q235 thickness is used.
5. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：The step 2 split shed spiral shell
One of a diameter of 24mm and 26mm of keyhole (4).
6. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：Angle clip in the step 4
(3) specification is hem width 56mm~70mm, side thickness 8mm.
7. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：The step 5 and step 6
Middle bolt (5), inclined support bar (6) and steady pin (8) are that tool steel makes, the wherein a diameter of 22mm and 24mm of bolt (5)
One of.
8. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：Side template in the step 5
(7) it is made of steel plate.
9. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：The step 2 light plate
(2) spacing of the adjacent apertures bolt hole (4) on the every side in longitudinal direction is 1000mm~2000mm.
10. a kind of precast plate girder pedestal preparation method according to claim 1, it is characterised in that：Pedestal in the step 4
(1) spacing between adjacent angle clip (3) of the longitudinal direction per side is 800mm~1200mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710323617.0A CN107053440B (en) | 2017-05-10 | 2017-05-10 | A kind of precast plate girder pedestal production method |
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| CN201710323617.0A CN107053440B (en) | 2017-05-10 | 2017-05-10 | A kind of precast plate girder pedestal production method |
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| CN107053440A true CN107053440A (en) | 2017-08-18 |
| CN107053440B CN107053440B (en) | 2019-03-15 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587519A (en) * | 2017-09-18 | 2018-01-16 | 中国三冶集团有限公司 | A kind of beam prefabricated field pedestal structure of T and construction method |
| CN110788984A (en) * | 2019-10-28 | 2020-02-14 | 中建三局基础设施建设投资有限公司 | Precast beam making pedestal side width device and implementation method thereof |
| CN111827577A (en) * | 2020-06-29 | 2020-10-27 | 中铁广州工程局集团有限公司 | Construction method of supporting beam |
| CN113172754A (en) * | 2021-04-22 | 2021-07-27 | 中电建十一局工程有限公司 | Method for manufacturing prefabricated pedestal of pipe gallery |
| CN113756496A (en) * | 2021-09-17 | 2021-12-07 | 中建四局第一建设有限公司 | Structure and construction method of small-space floor bearing plate under roof reverse-procedure construction |
| CN115091607A (en) * | 2022-07-14 | 2022-09-23 | 华能铜川照金煤电有限公司 | Construction method for accurately positioning pre-camber of precast beam pedestal |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587519A (en) * | 2017-09-18 | 2018-01-16 | 中国三冶集团有限公司 | A kind of beam prefabricated field pedestal structure of T and construction method |
| CN110788984A (en) * | 2019-10-28 | 2020-02-14 | 中建三局基础设施建设投资有限公司 | Precast beam making pedestal side width device and implementation method thereof |
| CN111827577A (en) * | 2020-06-29 | 2020-10-27 | 中铁广州工程局集团有限公司 | Construction method of supporting beam |
| CN111827577B (en) * | 2020-06-29 | 2022-04-26 | 中铁广州工程局集团有限公司 | Construction method of supporting beam |
| CN113172754A (en) * | 2021-04-22 | 2021-07-27 | 中电建十一局工程有限公司 | Method for manufacturing prefabricated pedestal of pipe gallery |
| CN113756496A (en) * | 2021-09-17 | 2021-12-07 | 中建四局第一建设有限公司 | Structure and construction method of small-space floor bearing plate under roof reverse-procedure construction |
| CN113756496B (en) * | 2021-09-17 | 2022-08-19 | 中建四局第一建设有限公司 | Structure and construction method of small-space floor bearing plate under roof reverse-procedure construction |
| CN115091607A (en) * | 2022-07-14 | 2022-09-23 | 华能铜川照金煤电有限公司 | Construction method for accurately positioning pre-camber of precast beam pedestal |
| CN115091607B (en) * | 2022-07-14 | 2024-01-16 | 华能铜川照金煤电有限公司 | Construction method for accurately positioning pre-camber of precast beam pedestal |
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|---|---|
| CN107053440B (en) | 2019-03-15 |
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