CN109944160A - A kind of separate type opening combinations beam concrete slab overlapping accuracy control method - Google Patents
A kind of separate type opening combinations beam concrete slab overlapping accuracy control method Download PDFInfo
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- CN109944160A CN109944160A CN201910037597.XA CN201910037597A CN109944160A CN 109944160 A CN109944160 A CN 109944160A CN 201910037597 A CN201910037597 A CN 201910037597A CN 109944160 A CN109944160 A CN 109944160A
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- 239000004567 concrete Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 85
- 239000010959 steel Substances 0.000 claims abstract description 85
- 238000003466 welding Methods 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims abstract description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 7
- 238000013461 design Methods 0.000 claims abstract description 7
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 239000003550 marker Substances 0.000 claims abstract description 4
- 210000003205 muscle Anatomy 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 239000011150 reinforced concrete Substances 0.000 description 6
- 238000009408 flooring Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of separate type opening combinations beam concrete slabs to overlap accuracy control method, according to concrete bridge deck prefabricated board structure type, design finishing prefabricated mould, bed die need to guarantee whole flatness, and it is equipped with the locating notch of positioning with the pre-buried steel member of girder steel butt welding, side form is equipped with the notch for being accurately positioned reinforcing bar and presstressed reinforcing steel, and bed die upper surface surrounding threshold marker is used to position the reference line in length and breadth of pre-buried steel member and side form, forms SURVEYING CONTROL NETWORK；Baseline is accurately positioned steel member and prestressed, reinforced muscle using mold and in length and breadth, guarantee pre-buried steel member and bed die upper surface integral planar degree, guarantee side form and bed die verticality and whole outer profile size after carry out subsequent concreting, maintenance etc. and construct, it is ensured that the overall dimensions of prefabricated board, built-in fitting, reinforcing bar positioning accuracy reach the millimetre-sized examination required precision of steel construction.
Description
Technical field
The present invention relates to one kind for the steel reinforced concretes combination beam band pre-buried steel concrete members bridge floor such as large-scale cable-stayed bridge, suspension bridge
The accuracy control method of prefabricated board and separate type open steel girder overlapping.
Background technique
Steel reinforced concrete combination beam uses concrete slab, and relatively traditional steel box-girder is with rigidity is big, steel using amount is few, avoids biography
Steel bridge deck fatigue problem of uniting and deck paving problem easy to damage, increasingly by the favor of builder, in recent years in China
It quickly grows.Steel reinforced concrete combination beam largely uses the cast-in-place molding directly on girder steel, concrete slab precision in conjunction with girder steel
Control is relatively easy.But the open steel girder of the concrete bridge deck prefabricated board and separate type with pre-buried steel member overlapping is integral
Then extremely difficult, be mainly shown as two aspects: the concrete slab first with pre-buried steel member will be realized to be opened with separate type
The girder steel of mouth accurately matches, it is necessary to assure the prefabricated precision of concrete slab reaches the required precision of structure steel fabrication；Secondly
Concrete slab is to grow up component, quality weight, and rigidity is small before the open steel beam bridge panel of separate type overlaps, floorings and its
Spelling precision controlling difficulty is high.
Summary of the invention
Purpose of design: avoiding the shortcoming in background technique, for the steel reinforced concretes combination beam band such as large-scale cable-stayed bridge, suspension bridge
The concrete bridge deck prefabricated board of prefabricated steel member is prefabricated and design feature with girder steel spelling precision controlling difficulty, provides a kind of work
Factory, standardized complete Construction precision control method.Precision controlling target not only may be implemented in it, but also can be improved and apply
Work effect reduces construction cost.
Design scheme: in order to realize above-mentioned purpose of design.Separate type opening combinations beam concrete slab overlaps precision control
Method processed, the prefabricated precision controlling of the concrete slab of (1) with pre-buried steel member: according to concrete bridge deck prefabricated board structure shape
Formula, design finishing prefabricated mould, bed die need to guarantee whole flatness, and be equipped with positioning and girder steel butt welding pre-buried steel structure
The locating notch of part, side form are equipped with the notch for being accurately positioned reinforcing bar and presstressed reinforcing steel, and bed die upper surface surrounding threshold marker is used for
The reference line in length and breadth of pre-buried steel member and side form is positioned, SURVEYING CONTROL NETWORK is formed；Using mold and in length and breadth baseline be accurately positioned steel
Component and prestressed, reinforced muscle guarantee pre-buried steel member and bed die upper surface integral planar degree, guarantee that side form is vertical with bed die
It carries out subsequent concreting, maintenance etc. after degree and whole outer profile size to construct, it is ensured that the overall dimensions of prefabricated board, pre-buried
Part, reinforcing bar positioning accuracy reach the millimetre-sized examination required precision of steel construction.(2) concrete bridge deck prefabricated board and girder steel spelling
Precision controlling: the measurement net monitoring measurement of four vertical and one horizontal is always 1. spelled using combination beam, guarantees that girder steel is always spelled and concrete bridge deck is prefabricated
Plate and girder steel spelling have unified measuring basis, guarantee assembly precision；2. separate type open steel control precision process measure: a. from
Girder steel temporary location successively organizes weldering to two side units, reserves welding shrinking process amount, while according to postwelding size, amendment outside is single
First spelling technique welding contracted quantity；B. steel girder segment intersternite uses technique splice plate, by whole wheel segment bolt and integral makes it
Whole stress, while top increases restained beam, control welding becomes and increases rigidity；3. first that concrete bridge deck is prefabricated using suspender
Placing steel beam top surface is lifted, coarse positioning is first realized using guide support, recycles a thousand pieces of gold top, adjusting screw to measure column foot line
On the basis of finely tune the prefabricated Board position of bridge floor, making it with girder steel, accurate positioning matches.
Compared with the background technology, the present invention, first is that realizing the concrete of the prefabricated steel member of the steel reinforced concretes combination beam band such as suspension bridge
Bridge floor prefabricated board it is prefabricated and with the batch production of girder steel spelling precision controlling, the complete Construction precision control of standardization；Second is that not only may be used
To realize precision controlling target, and construction effect can be improved, reduces construction cost.
Detailed description of the invention
Fig. 1 is concrete bridge deck prefabricated mould schematic diagram.
Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view.
Fig. 3 is B-B direction schematic cross-sectional view in Fig. 1.
Fig. 4 is that combination beam always spells four vertical and one horizontal measurement net schematic diagram.
Fig. 5 is the schematic top plan view of Fig. 1.
Fig. 6 is technique splice plate schematic diagram
Fig. 7 is the schematic side view of Fig. 6.
Fig. 8 is restained beam schematic diagram.
Fig. 9 is concrete bridge deck prefabricated board positioning assembling schematic diagram.
Figure 10 is Fig. 9 top view illustration.
Figure 11 is concrete bridge deck prefabricated board positioning assembling adjustment mechanism schematic diagram in Fig. 9 and Figure 10.
Specific embodiment
Referring to attached drawing 1-11.The complete Construction precision control method that the present invention uses includes: (1) with the mixed of pre-buried steel member
The prefabricated accuracy control method of solidifying soil floorings；(2) concrete bridge deck prefabricated board and girder steel spelling accuracy control method.
(1) the prefabricated accuracy control method of concrete slab with pre-buried steel member:
According to 1 structure type of concrete bridge deck prefabricated board, prefabricated mould is designed and finishes, bed die need to guarantee whole plane
Degree, and it is equipped with the locating notch of positioning with the pre-buried steel member of girder steel butt welding, side form, which is equipped with, is accurately positioned reinforcing bar and prestressing force
The notch of muscle, bed die upper surface surrounding threshold marker are used to position the reference line in length and breadth of pre-buried steel member and side form, form measurement
Net is controlled, structural representation is as shown in Figure 1.
Baseline is accurately positioned pre-buried steel member using mold bottom die and in length and breadth, utilizes bed die baseline to position side form, recycles
The notch spacer bar and presstressed reinforcing steel of reinforcing bar and presstressed reinforcing steel on side form guarantee that pre-buried steel member and bed die upper surface are whole
Subsequent concreting, maintenance etc. is carried out after the verticality of flatness, guarantee side form and bed die and whole outer profile size to apply
Work, it is ensured that the overall dimensions of prefabricated board, built-in fitting, reinforcing bar positioning accuracy reach the millimetre-sized examination required precision of steel construction.
(2) concrete bridge deck prefabricated board and girder steel spelling accuracy control method:
1. always spelling the measurement monitoring measurement of net 6,7 of four vertical and one horizontal using combination beam, guarantee girder steel is always spelled and concrete bridge deck prefabricated board
There is unified measuring basis with girder steel spelling, guarantees assembly precision.
It is unfavorable for controlling total spelling precision 2. rigidity is small before overlapping for separate type open steel girder floorings, is unfavorable for guaranteeing
The subsequent difficult point with bridge floor prefabricated board spelling precision, takes precision process measure control as follows:
A. weldering is successively organized from 13 temporary location of girder steel to two side units, reserves welding shrinking process amount, while according to postwelding size,
Correct outer cells spelling technique welding contracted quantity.
B. 13 segment intersternite of girder steel use technique splice plate, by whole wheel segment bolt and it is integral make its entirety stress, together
When top increase restained beam 14, control welding become and increase rigidity.
3. concrete bridge deck prefabricated board 1 is first lifted placing steel beam top surface 13 using suspender, guide support 2 and 4 is utilized
It first realizes coarse positioning, recycles a thousand pieces of gold top, adjusting screw 3 to measure the horizontal baseline of column foot line 6, segment horizontal baseline 7 and prefabricated board 1
8 and vertical baseline 9 on the basis of finely tune 1 position of bridge floor prefabricated board, making it with girder steel 13, accurate positioning match, guarantee 13 diaphragm plate of girder steel
With the pre-buried steel member 5 of prefabricated board between the longitudinal wet joint 11 just, guaranteed between 8 pieces of prefabricated boards 1 and lateral wet 12 reinforcing bar of seam
Away from guarantee presstressed reinforcing steel is to just.
4. the butt weld 10 between 13 diaphragm plate of welded steel beam and the pre-buried steel member 5 of concrete bridge deck prefabricated board.
5. in the template of 11 position of longitudinal wet joint installation pouring molding, lateral wet 12 position self-assembling formation template of seam,
The reinforcing bar and the wet joint concrete of presstressed reinforcing steel after-pouring vertical and horizontal for installing wet seam, by 8 block concrete prefabricated bridges
It pours integral, overlaps integral separate type with girder steel and be open steel reinforced concrete combination beam.
1 is concrete bridge deck prefabricated board, and 2 be guide plate, and 3 be adjusting screw, and 4 be matching supporting element, and 5 be pre-buried steel structure
Part, 6 be measurement column foot line, and 7 be the horizontal baseline in segment, and 8 be the horizontal baseline of concrete bridge deck prefabricated board, and 9 be concrete bridge deck prefabricated board
Vertical baseline, 10 be pre-buried steel member and girder steel partition abutment joint, and 11 be longitudinal wet joint, and 12 be lateral wet seam, and 13 be bottom
Girder steel, 14 be restained beam.
It is to be understood that: although above-described embodiment retouches mentality of designing of the invention detailed text of contrasting
It states, but these verbal descriptions, only the simple text of mentality of designing of the present invention is described, rather than to mentality of designing of the present invention
Limitation, any combination, increase or modification without departing from mentality of designing of the present invention falls within the protection scope of the present invention.
Claims (1)
1. a kind of separate type opening combinations beam concrete slab overlaps accuracy control method, it is characterized in that: (1) band pre-buried steel structure
The prefabricated precision controlling of the concrete slab of part:
According to concrete bridge deck prefabricated board structure type, design finishing prefabricated mould, bed die need to guarantee whole flatness, and
Locating notch equipped with positioning with the pre-buried steel member of girder steel butt welding, side form are equipped with the slot for being accurately positioned reinforcing bar and presstressed reinforcing steel
Mouthful, bed die upper surface surrounding threshold marker is used to position the reference line in length and breadth of pre-buried steel member and side form, forms SURVEYING CONTROL NETWORK；
Baseline is accurately positioned steel member and prestressed, reinforced muscle using mold and in length and breadth, guarantees that pre-buried steel member and bed die upper surface are whole
Subsequent concreting, maintenance etc. is carried out after the verticality of flatness, guarantee side form and bed die and whole outer profile size to apply
Work, it is ensured that the overall dimensions of prefabricated board, built-in fitting, reinforcing bar positioning accuracy reach the millimetre-sized examination required precision of steel construction；
(2) concrete bridge deck prefabricated board and girder steel spelling precision controlling:
1. always spelling the measurement net monitoring measurement of four vertical and one horizontal using combination beam, guarantee that girder steel is always spelled and concrete bridge deck prefabricated board and steel
Beam spelling has unified measuring basis, guarantees assembly precision；
2. separate type open steel controls precision process measure:
A. weldering is successively organized from girder steel temporary location to two side units, reserves welding shrinking process amount, while according to postwelding size, repaired
Positive outer cells spelling technique welding contracted quantity；
B. steel girder segment intersternite uses technique splice plate, by whole wheel segment bolt and integral makes its entirety stress, while top
Increase restained beam, control welding becomes and increase rigidity；
3. coarse positioning is first realized using guide support first by concrete bridge deck prefabrication and lifting placing steel beam top surface using suspender,
It recycles a thousand pieces of gold top, adjusting screw to finely tune the prefabricated Board position of bridge floor on the basis of measuring column foot line, is accurately positioned it with girder steel
Matching.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910037597.XA CN109944160A (en) | 2019-01-15 | 2019-01-15 | A kind of separate type opening combinations beam concrete slab overlapping accuracy control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910037597.XA CN109944160A (en) | 2019-01-15 | 2019-01-15 | A kind of separate type opening combinations beam concrete slab overlapping accuracy control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535185A (en) * | 2020-04-30 | 2020-08-14 | 中交二公局第二工程有限公司 | Method for installing plate girder combination beam of suspension bridge |
| CN114000429A (en) * | 2021-08-07 | 2022-02-01 | 中铁宝桥（扬州）有限公司 | Longitudinal wet joint pouring deformation control method for eccentric half-width steel-concrete combined box girder |
| CN114589792A (en) * | 2022-04-02 | 2022-06-07 | 中铁宝桥（扬州）有限公司 | Bridge prefabricated plate mould |
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| CN108978868A (en) * | 2018-09-12 | 2018-12-11 | 西安建筑科技大学 | A kind of replaceable shearing-type energy-consumption beam section-steel deep beam connection structure and installation method |
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| KR200443605Y1 (en) * | 2008-09-04 | 2009-03-02 | 황하수 | Frame panel supporting apparatus for concrete casting a bridge structure |
| CN101709571A (en) * | 2009-12-03 | 2010-05-19 | 中铁宝桥集团有限公司 | Preparation method of set of datum lines of bridge steel box girder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535185A (en) * | 2020-04-30 | 2020-08-14 | 中交二公局第二工程有限公司 | Method for installing plate girder combination beam of suspension bridge |
| CN114000429A (en) * | 2021-08-07 | 2022-02-01 | 中铁宝桥（扬州）有限公司 | Longitudinal wet joint pouring deformation control method for eccentric half-width steel-concrete combined box girder |
| CN114589792A (en) * | 2022-04-02 | 2022-06-07 | 中铁宝桥（扬州）有限公司 | Bridge prefabricated plate mould |
| CN114589792B (en) * | 2022-04-02 | 2023-09-22 | 中铁宝桥（扬州）有限公司 | Bridge prefabricated plate mould |
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Application publication date: 20190628 |