CN208917702U - Fish-bellied type concrete box girder cast-in-place construction formwork-support - Google Patents
Fish-bellied type concrete box girder cast-in-place construction formwork-support Download PDFInfo
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- CN208917702U CN208917702U CN201821599649.XU CN201821599649U CN208917702U CN 208917702 U CN208917702 U CN 208917702U CN 201821599649 U CN201821599649 U CN 201821599649U CN 208917702 U CN208917702 U CN 208917702U
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Abstract
The utility model discloses a kind of fish-bellied type concrete box girder cast-in-place construction formwork-supports, it is to divide the pier cap for being in fish-bellied type concrete box girder both ends as end seat, vertical steel pipe support newel post is propped up in end seat, with the middle part concrete continuous footing in span centre for middle seat, vertical steel pipe support center pillar is propped up on middle seat, it is respectively set at the top of steel pipe support newel post and steel pipe support center pillar and unloads frame sandbox, lateral spandrel girder is provided at the top of frame sandbox unloading, at the top of lateral spandrel girder along suitable bridge to equipped with multiple groups Bailey beam stringer, formwork-support is formed with each group Bailey beam stringer, shaping combined steel shuttering is supported on the top of Bailey beam stringer.The utility model structure is simple, Path of Force Transfer is clear, bearing capacity is strong, is suitable for Long span fish-bellied type concrete box girder cast-in-place construction, construction cost and security risk can be effectively reduced.
Description
Technical field
The utility model relates to the technical fields of bridge superstructure construction, are more specifically a kind of fish-bellied type concrete boxs
Beam cast-in-place construction formwork-support.
Background technique
With the fast development of Bridges in Our Country standard of construction, some special-shaped, long-span bridge girder constructions are continuously emerged, fish-bellied type
Concrete box girder is increasingly common in urban elevated bridge in the moulding of fish belly shape with its box beam bottom web.When construction, using tradition
Bowl fastening type steel pipe scaffold and the arrangement and method for construction of plank sheathing need to handle ground to meet bracket and set up requirement, apply
Work is at high cost, and construction speed is slow；Also, plank sheathing difficulty on guaranteeing fish-bellied type concrete box girder appearance line style is very big.
Utility model content
The utility model is to provide that a kind of structure is simple, stress is clear, rigidity to avoid deficiency of the prior art
Greatly, the strong fish-bellied type concrete box girder cast-in-place construction formwork-support of bearing capacity, with reduce construction cost, accelerate construct into
Degree reduces security risk.
The utility model adopts the following technical scheme that in order to solve the technical problem
The utility model fish-bellied type concrete box girder cast-in-place construction formwork-support is structurally characterized in that: being in fish belly with point
The pier cap at formula concrete box girder both ends is end seat, vertical steel pipe support newel post is propped up in the end seat, in span centre
Portion's concrete continuous footing is middle seat, vertical steel pipe support center pillar is propped up on the middle seat, in the steel pipe support newel post and steel pipe
It is respectively set at the top of support center pillar and unloads frame sandbox, lateral spandrel girder is provided at the top of frame sandbox in described unload, in the cross
, to multiple groups Bailey beam stringer is equipped with, formwork-support, sizing are formed along bridge to the top of spandrel girder with each group Bailey beam stringer
Combined steel formwork is supported on the top of the Bailey beam stringer.
The design feature of the utility model fish-bellied type concrete box girder cast-in-place construction formwork-support is lain also in: in the bridge
Support column pre-embedded steel slab, the steel pipe support newel post and steel pipe are respectively arranged on pier cushion cap and middle part concrete continuous footing
Support center pillar is fixed using the support column pre-embedded steel slab on corresponding position；It is respectively set at the different height of the bridge pier
Pier shaft pre-embedded steel slab, the steel pipe support newel post on corresponding position are fixed as overall structure by channel steel and pier shaft pre-embedded steel slab.
The design feature of the utility model fish-bellied type concrete box girder cast-in-place construction formwork-support is lain also in: being arranged in institute
State middle part concrete continuous footing on steel pipe support center pillar along bridge for two rows, array pitch 3m, two rows of steel pipe support center pillars it
Between longitudinally connected system is set, longitudinally connected tie up to vertically is arranged at intervals at least twice.
The design feature of the utility model fish-bellied type concrete box girder cast-in-place construction formwork-support is lain also in: the steel pipe
Support newel post and steel pipe support center pillar are all made of spiral welded steel pipe, and direction across bridge is equipped with more, and two spiral shells that direction across bridge is adjacent
Lateral connection system is provided between rotation welded still pipe, the lateral connection, which ties up to, is vertically arranged at intervals at least twice.
The design feature of the utility model fish-bellied type concrete box girder cast-in-place construction formwork-support is lain also in: the transverse direction
Spandrel girder uses I-steel or H profile steel.
The design feature of the utility model fish-bellied type concrete box girder cast-in-place construction formwork-support is lain also in: the sizing
Combined steel formwork is welded by channel steel and steel plate group.
Compared with the prior art, the utility model has the beneficial effect that:
1, the structure design of the utility model is reasonable, easy for construction, more traditional bowl fastening type steel pipe scaffold support system, uses
Steel pipe column and Bailey beam strutting system are not necessarily to carry out dealing with foundation and the steel pipe scaffold without setting up the big scale of construction, effectively drop
Low construction cost, accelerates construction progress.
2, the utility model uses shaping combined steel shuttering, and combined steel formwork is earlier production, after completing at the scene
Lifting spelling is carried out, construction speed is not only accelerated, but also is effectively guaranteed fish-bellied type concrete box girder appearance line style.
3, the utility model can equally obtain in the Long span fish-bellied type concrete box girder cast-in-place construction that across footpath is more than 35m
Application well.
Detailed description of the invention
Fig. 1 is the utility model facade schematic view of the front view；
Fig. 2 is the A-A sectional view of Fig. 1；
Figure label: 1 fish-bellied type concrete box girder, Bridge 2 pier cushion cap, 3 middle part concrete continuous footings, 4 support columns are pre-buried
Steel plate, 501 steel pipe support newel posts, 502 steel pipe support center pillars, 6 bridge piers, 7 pier shaft pre-embedded steel slabs, 8 channel steels, 9 unload frame sandbox, and 10 is horizontal
To spandrel girder, 11 Bailey beam stringers, 12 shaping combined steel shutterings, 1301 longitudinally connected systems, 1302 lateral connection systems.
Specific embodiment
Referring to Fig. 1, Fig. 2, the structure type of fish-bellied type concrete box girder cast-in-place construction formwork-support is in the present embodiment:
With point pier cap 2 for being in 1 both ends of fish-bellied type concrete box girder for end seat, vertical steel pipe support newel post 501 is propped up in end seat, with
Middle part concrete continuous footing 3 in span centre is middle seat, vertical steel pipe support center pillar 502 is propped up on middle seat, at steel pipe support end
The top of column 501 and steel pipe support center pillar 501, which is respectively set, unloads frame sandbox 9, and the top for unloading frame sandbox 9 is provided with lateral load-bearing
Beam 10, to multiple groups Bailey beam stringer 11 is equipped with, is formed at the top of lateral spandrel girder 10 along bridge with each group Bailey beam stringer 11
Formwork-support, shaping combined steel shuttering 12 are supported on the top of Bailey beam stringer 11.
In specific implementation, corresponding structure setting also includes:
As depicted in figs. 1 and 2, to be respectively arranged with support column on pier cap 2 and middle part concrete continuous footing 3 pre-
Steel plate 4, steel pipe support newel post 501 and steel pipe support center pillar 502 is buried to be consolidated using the support column pre-embedded steel slab 4 on corresponding position
It is fixed；Pier shaft pre-embedded steel slab 7 is respectively set at the different height of bridge pier 6, the steel pipe support newel post 501 on corresponding position passes through slot
Steel 8 and pier shaft pre-embedded steel slab 7 are fixed as overall structure.
As shown in Figure 1, the steel pipe support center pillar 502 being arranged on middle part concrete continuous footing 3 is two rows, array pitch along bridge
For 3m, being arranged between two rows of steel pipe support center pillars 502 longitudinally connected is 1301, and longitudinally connected is 1301 in vertical interval setting
There are at least twice.
As depicted in figs. 1 and 2, it is 630mm, wall thickness that steel pipe support newel post 501 and steel pipe support center pillar 502, which are all made of diameter,
For the spiral welded steel pipe of 12mm, direction across bridge is equipped with four, and is provided between adjacent two spiral welded steel pipes of direction across bridge
Lateral connection system 1302, lateral connection system 1302 are vertically being arranged at intervals at least twice；Lateral spandrel girder 10 uses I-steel
Or H profile steel；Shaping combined steel shuttering 12 is welded by channel steel and steel plate group.
It in order to facilitate the installation of and dismantles, the support in steel pipe support newel post 501 and steel pipe support center pillar 502 and corresponding position
It is attached between column pre-embedded steel slab 4 using foundation bolt；Frame sandbox 9 is unloaded for convenience of placement, in steel pipe support newel post 501 and steel
The top of pipe support center pillar 502 is welded with capital cover board, and the multiple tracks stiffener between the surrounding of capital and capital cover board, unloads frame
It uses and is welded and fixed between sandbox 9 and capital cover board.
According to the difference of load, lateral spandrel girder 10 can be using Two bors d's oeuveres or more spelling I-steel or H profile steel, in transverse direction
Spandrel girder 10 and unload between frame sandbox 9 using being welded and fixed, lateral 10 top of spandrel girder along bridge to there is six groups of Bailey beam stringers 11,
Spacing 1m between two adjacent groups Bailey beam stringer 11, single group Bailey beam stringer is integral using 90 type support frame spellings, according to
The difference of load, 11 groups of numbers of Bailey beam stringer and spacing can appropriate adjustment to meet upper load requirement, Bailey beam is vertical
It is fixed between beam 11 and lateral spandrel girder 10 using limiter.
To guarantee fish-bellied type concrete box girder appearance line style, accelerating construction progress, fish-bellied type concrete box girder is using sizing
Combined steel formwork 12, shaping combined steel shuttering 12 are welded by channel steel and steel plate group, and segmented production facilitates peace installation and dismantling
It unloads.
Claims (6)
1. a kind of fish-bellied type concrete box girder cast-in-place construction formwork-support, it is characterized in that: being in fish-bellied type concrete box to divide
The pier cap (2) at beam (1) both ends is end seat, is propped up in the end seat vertical steel pipe support newel post (501), in span centre
Portion's concrete continuous footing (3) is middle seat, is propped up on the middle seat vertical steel pipe support center pillar (502), at the steel pipe support end
It is respectively set at the top of column (501) and steel pipe support center pillar (502) and unloads frame sandbox (9), set at the top of frame sandbox (9) in described unload
Be equipped with lateral spandrel girder (10), the top of the lateral spandrel girder (10) along bridge to being equipped with multiple groups Bailey beam stringer (11),
Formwork-support is formed with each group Bailey beam stringer (11), shaping combined steel shuttering (12) is supported on the Bailey beam stringer (11)
Top.
2. fish-bellied type concrete box girder cast-in-place construction formwork-support according to claim 1, it is characterized in that: in the bridge
Support column pre-embedded steel slab (4), the steel pipe support are respectively arranged on pier cushion cap (2) and middle part concrete continuous footing (3)
Newel post (501) and steel pipe support center pillar (502) are fixed using the support column pre-embedded steel slab (4) on corresponding position；Described
It is respectively set at the different height of bridge pier (6) pier shaft pre-embedded steel slab (7), the steel pipe support newel post (501) on corresponding position passes through
Channel steel (8) and pier shaft pre-embedded steel slab (7) are fixed as overall structure.
3. fish-bellied type concrete box girder cast-in-place construction formwork-support according to claim 1, it is characterized in that: being arranged in institute
It is two rows, array pitch 3m, in two rows of steel pipe branch that the steel pipe support center pillar (502) on middle part concrete continuous footing (3), which is stated, along bridge
Longitudinally connected system (1301) is set between support center pillar (502), the longitudinally connected system (1301) is arranged at intervals at least vertically
Twice.
4. fish-bellied type concrete box girder cast-in-place construction formwork-support according to claim 1, it is characterized in that: the steel pipe
Support newel post (501) and steel pipe support center pillar (502) are all made of spiral welded steel pipe, and direction across bridge is equipped with more, and direction across bridge phase
It is provided with lateral connection system (1302) between two adjacent spiral welded steel pipes, the lateral connection system (1302) is vertically being spaced
It is provided at least twice.
5. fish-bellied type concrete box girder cast-in-place construction formwork-support according to claim 1, it is characterized in that: the transverse direction
Spandrel girder (10) uses I-steel or H profile steel.
6. fish-bellied type concrete box girder cast-in-place construction formwork-support according to claim 1, it is characterized in that: the sizing
Combined steel formwork (12) is welded by channel steel and steel plate group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821599649.XU CN208917702U (en) | 2018-09-29 | 2018-09-29 | Fish-bellied type concrete box girder cast-in-place construction formwork-support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821599649.XU CN208917702U (en) | 2018-09-29 | 2018-09-29 | Fish-bellied type concrete box girder cast-in-place construction formwork-support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208917702U true CN208917702U (en) | 2019-05-31 |
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ID=66707692
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821599649.XU Expired - Fee Related CN208917702U (en) | 2018-09-29 | 2018-09-29 | Fish-bellied type concrete box girder cast-in-place construction formwork-support |
Country Status (1)
| Country | Link |
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| CN (1) | CN208917702U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854004A (en) * | 2021-02-25 | 2021-05-28 | 中铁北京工程局集团(天津)工程有限公司 | Fish-bellied box girder column type support construction method |
| CN113445436A (en) * | 2021-07-06 | 2021-09-28 | 中国建筑第二工程局有限公司 | Bridge pier temporary reinforcing structure under condition that does not stop |
| CN114108496A (en) * | 2021-12-24 | 2022-03-01 | 宁波市政工程建设集团股份有限公司 | Method for casting cross-river channel variable-section cast-in-place box girder by using independent few supports |
| US11479929B2 (en) | 2020-08-07 | 2022-10-25 | Peri Se | Formwork system and method |
-
2018
- 2018-09-29 CN CN201821599649.XU patent/CN208917702U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11479929B2 (en) | 2020-08-07 | 2022-10-25 | Peri Se | Formwork system and method |
| US11885083B2 (en) | 2020-08-07 | 2024-01-30 | Peri Se | Formwork system and method |
| CN112854004A (en) * | 2021-02-25 | 2021-05-28 | 中铁北京工程局集团(天津)工程有限公司 | Fish-bellied box girder column type support construction method |
| CN113445436A (en) * | 2021-07-06 | 2021-09-28 | 中国建筑第二工程局有限公司 | Bridge pier temporary reinforcing structure under condition that does not stop |
| CN114108496A (en) * | 2021-12-24 | 2022-03-01 | 宁波市政工程建设集团股份有限公司 | Method for casting cross-river channel variable-section cast-in-place box girder by using independent few supports |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190531 |
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| CF01 | Termination of patent right due to non-payment of annual fee |