CN107558351A - Abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method - Google Patents
Abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method Download PDFInfo
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- CN107558351A CN107558351A CN201710923100.5A CN201710923100A CN107558351A CN 107558351 A CN107558351 A CN 107558351A CN 201710923100 A CN201710923100 A CN 201710923100A CN 107558351 A CN107558351 A CN 107558351A
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- box beam
- trapezoidal
- steel web
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 194
- 239000010959 steel Substances 0.000 title claims abstract description 194
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 210000001015 abdomen Anatomy 0.000 title claims abstract description 20
- 239000004567 concrete Substances 0.000 claims abstract description 47
- 230000002787 reinforcement Effects 0.000 claims abstract description 21
- 210000002435 tendon Anatomy 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000009415 formwork Methods 0.000 claims description 44
- 210000001364 upper extremity Anatomy 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 9
- 210000003205 muscle Anatomy 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009416 shuttering Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 4
- 239000011150 reinforced concrete Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 239000004593 Epoxy Substances 0.000 abstract 1
- 239000011384 asphalt concrete Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to a kind of abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method.It includes box beam composite bottom board, box beam combining structure top plate, trapezoidal steel web and box beam dividing plate, the box beam composite bottom board that epoxy asphalt concrete forms composite construction is poured on trapezoidal steel plate, box beam combining structure top plate is the combining structure of trapezoidal plate girder and armored concrete；Trapezoidal steel plate, trapezoidal plate girder and trapezoidal steel web are first formed into complete structural system in factory or scene using welding or other connection methods before box beam erection.A kind of abdomen bag bottom of the present invention is trapezoidal（Waveform）Steel plate combination box beam and its construction method, longitudinal reinforcement colligation and prestressed tendon piping laying are completed in prefabricated overall skeleton, then directly carry out beam body or the lifting of beam section skeleton overall structure is set up, finally pour the reinforced concrete floor and top plate of box beam；Underplate concrete is equal with steel web wing plate；Bridge type is attractive in appearance and convenient construction.
Description
Technical field
The present invention relates to a kind of abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method, belong to bridge structure neck
Domain.
Background technology
Traditional is trapezoidal（Waveform）Steel web box girder designs and construction is first trapezoidal（Waveform）Steel web bottom is according to bottom plate
The spacing of transverse steel is drilled and then will be connected after concrete floor reinforced steel bar perforation with steel web, steel web insertion bottom plate
Among concrete, construction complex operations it is difficult, be entirely manual operation, workload is big, labor intensity is high, trapezoidal（Waveform）Steel plate
Difficulty is combined with concrete, it is particularly trapezoidal（Waveform）The underplate concrete of steel web lower outside is because of the thermal expansion with steel plate
Coefficient is different easily to produce crack gaps, rain leakage, reinforcing bar, steel plate corrosion, influence bridge service life occurs；Unite trapezoidal
（Waveform）Steel web combining structure box beam all below web, not only constructional difficulties and also influence aesthetics and quality；Traditional ladder
Shape（Waveform）Steel web combining structure box girder construction must set up cast-in-place support and template at the scene, using Large Constructions such as Hanging Baskets
Installations and facilities, engineering amortization charge are big；Steel web individually lifts installation location difficulty, top, base plate steel bar binding, prestress pipe
Laying positioning, the process such as formwork erection are all that high-altitude handwork, low construction efficiency, potential safety hazard are more.
The content of the invention
It is an object of the invention to be to overcome above-mentioned deficiency, there is provided a kind of abdomen bag bottom is trapezoidal（Waveform）Steel plate combination case
Beam and its construction method.
The object of the present invention is achieved like this：
A kind of abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method, are characterized in：It includes concrete roof, steel
Web, steel web upper limb steel plate, steel web bottom wing steel plate, concrete floor and bottom plate longitudinal reinforcement, concrete roof are included certainly
Top plate transverse steel truss and top plate longitudinal reinforcement with bed die, concrete floor include carrying the bottom plate transverse steel purlin of bed die
Frame and bottom plate longitudinal reinforcement, the both sides of steel web upper limb steel plate are connected with carrying the top plate transverse steel truss of bed die by peg
Connect, be connected in the middle part of steel web upper limb steel plate with the upper end of steel web by peg, the lower end of steel web passes through peg and steel web
Bottom wing steel plate connects, so as to form beam section skeleton integral structural system.
A kind of abdomen bag bottom of the present invention is trapezoidal（Waveform）Steel plate combination box beam, bottom surface and the steel web bottom wing of its concrete floor
The bottom surface of steel plate flushes.
A kind of abdomen bag bottom of the present invention is trapezoidal（Waveform）The construction method of steel plate combination box beam, it is characterised in that：Construction method
Comprise the following steps：
Step 1: carry the top plate transverse steel truss of bed die in factory or field fabrication and carry the bottom plate transverse direction steel of bed die
Muscle truss, in the lower weld peg of steel web, in steel web upper limb steel plate both sides weld stud, in steel web bottom wing steel plate
Inner side weld stud, by the top plate transverse steel truss for carrying bed die, steel web upper limb steel plate, steel web, the bottom for carrying bed die
Plate transverse steel truss and steel web bottom wing steel plate composition box beam entirety or beam section skeleton.
Step 2: the colligation top plate longitudinal reinforcement in concrete roof, the colligation bottom plate longitudinal reinforcement in concrete floor,
And lay Pipe installing prestressing tendon.
Step 3: the box beam entirety in step 1 or beam section skeleton are lifted on multifunctional box beam framework installation car.
Step 4: box beam entirety or beam section skeleton are transported to beam position to be poured on multifunctional box beam framework installation car, and
At mobile box beam wing plate mobile formwork to steel web upper limb steel plate, at movable case back plate mobile formwork to concrete roof, move
Entirety is carried out at dynamic box beam bottom plate mobile formwork to concrete floor or split pours box beam concrete, wherein box beam wing plate moves
Mould bases is C-shaped, and outside steel web upper limb steel plate, box beam top plate mobile formwork is located on the downside of concrete roof, and box beam bottom plate moves
Dynamic model frame is located at the bottom surface of concrete floor and steel web bottom wing steel plate.
Step 5: repeating above process continues next beam-ends construction until beam body closes up completion, finally by box beam wing plate
Mobile formwork, box beam top plate mobile formwork and box beam bottom plate Dismantling of Movable Shuttering Form.
A kind of abdomen bag bottom of the present invention is trapezoidal（Waveform）The construction method of steel plate combination box beam, its box beam top plate mobile formwork are
Dismountable structure.
A kind of abdomen bag bottom of the present invention is trapezoidal（Waveform）The construction method of steel plate combination box beam, box beam wing plate can not be used to move
Dynamic model frame, box beam top plate mobile formwork and box beam bottom plate mobile formwork, directly carrying the top plate transverse steel truss of bed die
Directly poured on the bed die of bed die and the bottom plate transverse steel truss for carrying bed die.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, a kind of abdomen bag bottom of the present invention is trapezoidal（Waveform）Steel plate combination box beam and its construction method, carry the top plate transverse direction steel of bed die
Muscle truss, carry the bottom plate transverse steel truss of bed die and made using millwork, and with steel web, steel web upper limb steel plate and
Steel web bottom wing steel plate is consolidated and forms overall skeleton and directly set up, and installation positioning is convenient and simple.
2nd, a kind of abdomen bag bottom of the present invention is trapezoidal（Waveform）Steel plate combination box beam and its construction method, using concrete floor with
The equal feature in steel web bottom wing steel plate ground, pass through mobile box beam wing plate mobile formwork, box beam top plate mobile formwork and box beam
Bottom plate mobile formwork to beam section to be poured carries out entirety or split pours box beam concrete, and repeating foregoing sequence after the sealing off and covering anchorage that is in the milk continues
Next beam section；Whole work progress need not be taken repeatedly to be torn support, template open, also not to need the big machineries such as Hanging Basket to equip.Process
Simply, quality controllable, remarkable in economical benefits.
Brief description of the drawings
Fig. 1 is a kind of trapezoidal composite bottom board mixed structure box beam schematic diagram of the present invention.
Fig. 2 is Fig. 1 partial schematic diagram.
Fig. 3 is the connection diagram of steel web upper limb steel plate and steel web in Fig. 1.
Fig. 4 is the connection diagram of steel web bottom wing steel plate and steel web in Fig. 1.
Fig. 5 is the peace of box beam wing plate mobile formwork of the invention, box beam top plate mobile formwork and box beam bottom plate mobile formwork
Fill schematic diagram.
In figure：
Concrete roof 1,
The top plate transverse steel truss 2 of bed die is carried,
Top plate longitudinal reinforcement 3,
Prestressing tendon 4 in top plate,
Steel web 5,
Steel web upper limb steel plate 6,
Steel web bottom wing steel plate 7,
Concrete floor 8,
The bottom plate transverse steel truss 9 of bed die is carried,
Bottom plate longitudinal reinforcement 10,
Prestressing tendon 11 in bottom plate,
Peg 12,
Box beam wing plate mobile formwork 13,
Box beam top plate mobile formwork 14,
Box beam bottom plate mobile formwork 15,
Multifunctional box beam framework installs car 16.
Embodiment
Referring to Fig. 1-5, the present invention relates to a kind of abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam it include concrete roof
1st, carry under the top plate transverse steel truss 2 of bed die, top plate longitudinal reinforcement 3, steel web 5, steel web upper limb steel plate 6, steel web
Wing steel plate 7, concrete floor 8, the bottom plate transverse steel truss 9 and bottom plate longitudinal reinforcement 10 for carrying bed die.
Concrete roof 1 includes the top plate transverse steel truss 2 and top plate longitudinal reinforcement 3 for carrying bed die, concrete floor 8
Bottom plate transverse steel truss 9 and bottom plate longitudinal reinforcement 10 including carrying bed die, the both sides of steel web upper limb steel plate 6 are with carrying bottom
The top plate transverse steel truss 2 of mould is connected by peg 12, and the middle part of steel web upper limb steel plate 6 and the upper end of steel web 5 pass through bolt
Nail connection, the lower end of steel web 5 is connected by peg with steel web bottom wing steel plate 7, so as to form beam section skeleton overall structure body
System, by top plate longitudinal reinforcement 3 and the colligation of bottom plate longitudinal reinforcement 10, and for prestressing force in prestressing tendon 4 in top plate and bottom plate
Beam 11 lays pipeline, carries out the erection of beam body overall structure or segmentation tunneling boring is set up.
Wherein, the bottom surface of concrete floor 8 flushes with the bottom surface of steel web bottom wing steel plate 7.
Abdomen bag bottom is trapezoidal（Waveform）The construction method of steel plate combination box beam comprises the following steps：
Step 1: carry the top plate transverse steel truss 2 of bed die in factory or field fabrication and carry the bottom plate transverse direction of bed die
Steel bar girder 9, in the lower weld peg 12 of steel web 5, in the both sides weld stud of steel web upper limb steel plate 6, under steel web
The inner side weld stud of wing steel plate 7, will carry the top plate transverse steel truss 2 of bed die, steel web upper limb steel plate 6, steel web 5,
The bottom plate transverse steel truss 9 and steel web bottom wing steel plate 7 for carrying bed die form box beam entirety or beam section skeleton.
Step 2: the colligation top plate longitudinal reinforcement 3 in concrete roof 1, the colligation bottom plate longitudinal direction steel in concrete floor 8
Muscle 10, and lay Pipe installing prestressing tendon.
Step 3: the box beam entirety in step 1 or beam section skeleton are lifted to 16 on multifunctional box beam framework installation car
On.
Step 4: 16 box beam entirety or beam section skeleton are transported to beam position to be poured on multifunctional box beam framework installation car,
And mobile box beam wing plate mobile formwork 13, box beam top plate mobile formwork 14 and box beam bottom plate mobile formwork 15 to beam section to be poured are carried out
Entirety or split pour box beam concrete, and referring to Fig. 5, wherein box beam wing plate mobile formwork 13 is C-shaped, positioned at steel web upper limb steel
Outside plate 6, box beam top plate mobile formwork 14 is located at the downside of concrete roof 1, and box beam bottom plate mobile formwork 15 is located at concrete floor 8
With the bottom surface of steel web bottom wing steel plate 7.
Step 5: repeating above process continues next beam-ends construction until beam body closes up completion, finally by box beam wing plate
Mobile formwork 13, box beam top plate mobile formwork 14 and box beam bottom plate mobile formwork 15 are removed.
In step 4, box beam wing plate mobile formwork 13, box beam top plate mobile formwork 14 and box beam bottom plate can not be used to move
Dynamic model frame 15, directly carrying the bed die of the top plate transverse steel truss 2 of bed die and carrying the bottom plate transverse steel truss 9 of bed die
Bed die on directly pour.
In step 4, concrete roof 1, concrete floor 8, steel web bottom wing steel plate 7 and steel web upper limb steel plate 6 can be with
Separately pour, can also synchronous one-time-concreting.
In step 4, box beam wing plate mobile formwork 13, box beam top plate mobile formwork 14 and box beam bottom plate mobile formwork 15 can
It being individually moved, positioning, adjusting and pouring, can also link into an integrated entity, be moved integrally, positioned, adjusted and poured, box beam top
Plate mobile formwork 14 can be dismountable structure, convenient to be passed through in dividing plate people's hole.
Operation principle：
By the way that tradition is trapezoidal（Waveform）The top of the artificial colligation in steel plate combination box beam scene, bottom plate transverse steel are made into mechanical prefabricated
The triangular reinforced bar truss for carrying bed die and respectively with steel web upper limb steel plate 6, steel web bottom wing steel plate 7 welding so as to and shape
Into skeleton integral structural system, remaining longitudinal reinforcement colligation and prestress pipe laying are then completed, directly carries out beam body skeleton
Overall structure is set up or sectional framework tunneling boring is set up, and then pours the reinforced concrete floor and top plate of box beam, concrete bottom
Plate flushes with steel web bottom wing steel plate, and bridge type is attractive in appearance and convenient construction.
Claims (5)
1. a kind of abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam, it is characterised in that：It includes concrete roof, steel web, steel
Web upper limb steel plate, steel web bottom wing steel plate, concrete floor and bottom plate longitudinal reinforcement, concrete roof include carrying bed die
Top plate transverse steel truss and top plate longitudinal reinforcement, concrete floor include the bottom plate transverse steel truss and bottom plate for carrying bed die
Longitudinal reinforcement, the both sides of steel web upper limb steel plate are connected with carrying the top plate transverse steel truss of bed die by peg, steel web
It is connected in the middle part of upper limb steel plate with the upper end of steel web by peg, the lower end of steel web is connected by peg and steel web bottom wing steel plate
Connect, so as to form beam section skeleton integral structural system.
2. a kind of abdomen bag bottom according to claim 1 is trapezoidal（Waveform）Steel plate combination box beam, it is characterised in that：Concrete bottom
The bottom surface of plate flushes with the bottom surface of steel web bottom wing steel plate.
3. a kind of abdomen bag bottom is trapezoidal（Waveform）The construction method of steel plate combination box beam, it is characterised in that：Construction method includes following
Step：
Step 1: carry the top plate transverse steel truss of bed die in factory or field fabrication and carry the bottom plate transverse direction steel of bed die
Muscle truss, in the lower weld peg of steel web, in steel web upper limb steel plate both sides weld stud, in steel web bottom wing steel plate
Inner side weld stud, by the top plate transverse steel truss for carrying bed die, steel web upper limb steel plate, steel web, the bottom for carrying bed die
Plate transverse steel truss and steel web bottom wing steel plate composition box beam entirety or beam section skeleton；
Step 2: the colligation top plate longitudinal reinforcement in concrete roof, the colligation bottom plate longitudinal reinforcement in concrete floor, and spread
If Pipe installing prestressing tendon；
Step 3: the box beam entirety in step 1 or beam section skeleton are lifted on multifunctional box beam framework installation car；
Step 4: box beam entirety or beam section skeleton are transported to beam position to be poured on multifunctional box beam framework installation car, and it is mobile
At box beam wing plate mobile formwork to steel web upper limb steel plate, at movable case back plate mobile formwork to concrete roof, movable case
Entirety is carried out at beam bottom plate mobile formwork to concrete floor or split pours box beam concrete, wherein box beam wing plate mobile formwork
C-shaped, outside steel web upper limb steel plate, box beam top plate mobile formwork is located on the downside of concrete roof, box beam bottom plate movement mould
Frame is located at the bottom surface of concrete floor and steel web bottom wing steel plate；
Step 5: the next beam-ends construction of repetition above process continuation closes up completion up to beam body, finally box beam wing plate is moved
Mould bases, box beam top plate mobile formwork and box beam bottom plate Dismantling of Movable Shuttering Form.
It is 4. trapezoidal according to a kind of abdomen bag bottom according to claim 3（Waveform）The construction method of steel plate combination box beam, it is special
Sign is：Box beam top plate mobile formwork is dismountable structure.
It is 5. trapezoidal according to a kind of abdomen bag bottom according to claim 3（Waveform）The construction method of steel plate combination box beam, it is special
Sign is：Box beam wing plate mobile formwork, box beam top plate mobile formwork and box beam bottom plate mobile formwork can not be used, directly certainly
Directly poured on the bed die of the bed die of top plate transverse steel truss with bed die and the bottom plate transverse steel truss for carrying bed die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923100.5A CN107558351A (en) | 2017-09-30 | 2017-09-30 | Abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923100.5A CN107558351A (en) | 2017-09-30 | 2017-09-30 | Abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method |
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| CN107558351A true CN107558351A (en) | 2018-01-09 |
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| CN201710923100.5A Pending CN107558351A (en) | 2017-09-30 | 2017-09-30 | Abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853986A (en) * | 2021-01-13 | 2021-05-28 | 中铁大桥局集团有限公司 | Movable formwork for construction of fabricated truss girder |
| CN114855598A (en) * | 2022-06-15 | 2022-08-05 | 中交第二航务工程局有限公司 | Anchor plate type prefabricated tooth block reinforcing steel bar structure and assembling method |
| CN114855599A (en) * | 2022-06-15 | 2022-08-05 | 中交第二航务工程局有限公司 | End-anchored prefabricated tooth block reinforcing steel bar structure and assembling method |
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| CN114855598A (en) * | 2022-06-15 | 2022-08-05 | 中交第二航务工程局有限公司 | Anchor plate type prefabricated tooth block reinforcing steel bar structure and assembling method |
| CN114855599A (en) * | 2022-06-15 | 2022-08-05 | 中交第二航务工程局有限公司 | End-anchored prefabricated tooth block reinforcing steel bar structure and assembling method |
| CN114855598B (en) * | 2022-06-15 | 2023-04-25 | 中交第二航务工程局有限公司 | Anchor plate type prefabricated tooth block reinforcing steel bar structure and assembly method |
| CN114855599B (en) * | 2022-06-15 | 2023-04-25 | 中交第二航务工程局有限公司 | End-anchored prefabricated tooth block reinforcing steel bar structure and assembly method |
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