CN209584871U - A kind of only column great cantilever Coping Construction bracket of high pier - Google Patents
A kind of only column great cantilever Coping Construction bracket of high pier Download PDFInfo
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- CN209584871U CN209584871U CN201920031656.8U CN201920031656U CN209584871U CN 209584871 U CN209584871 U CN 209584871U CN 201920031656 U CN201920031656 U CN 201920031656U CN 209584871 U CN209584871 U CN 209584871U
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Abstract
The utility model relates to a kind of high only column great cantilever Coping Construction brackets of pier, including the shelf bracket being arranged in the opposite two side walls of pier stud, each shelf bracket includes two A-frames, each A-frame includes vertical bar, cross bar and hound, vertical bar lower end is supported on the bracket being installed on pier stud side wall, bracket is bolted with the bracket built-in fitting being embedded in pier shaft, the lower end of vertical bar and the top plate of bracket pass through flanged joint, the upper end of two vertical bars and a horizontally disposed distribution beam pass through flanged joint, it is close to pier stud side wall in the side of distribution beam, the other side is connect with one end of the cross bar of two A-frames by pin shaft, the other end of cross bar and the lower end of vertical bar are connected by pin shaft；By being connected to pull rod between two distribution beams of pier stud two sidewalls.The utility model is improved than existing carrier structure overall stiffness, stability and safety.
Description
Technical field
The utility model belongs to technical field of bridge construction, is related to the bracket of bridge coping construction, especially a kind of high pier
Only column great cantilever Coping Construction bracket.
Background technique
Great cantilever Prestressed Slab Beams are common in municipal overpass engineering, on across town road, have that span ability is strong, construction
Speed is fast, and the advantages that lack occupied road area.Municipal overpass great cantilever Prestressed Slab Beams are usually to use floor stand method
Construction, because floor stand structure designs relative maturity, stability is also preferable.
In mountain area, complicated landform bridge is frequently with high pier.The high pier construction period is long, and risk is big.Use for reference great cantilever prestressing force lid
The advantages of beam, at present in Bridges in Mountainous Areas construction, monoblock type bridge pier top is also designed frequently with great cantilever Prestressed Slab Beams, makes bridge
Beam or so width bridge shares a pier shaft and is shortened the construction period with reducing high pier quantity, saves cost.But because alpine terrain and pier shaft are high
Degree limitation, can not be using landing cast-in-place support method construction；It is complete frequently with Bracket method one-time-concreting to guarantee Coping Construction quality
At.
Traditional bent cap bracket is usually that hole is preset on pier shaft, penetrates rod iron as load-bearing fulcrum, but easily cause hole
Hole circumferential concrete pours not full, generates certain influence to pier shaft structure；Or using steel plate welding embedding anchor bolts in pier
With, bracket is welded on the steel plate, shelf bracket is installed, but overhead welding quality is difficult to control on bracket, bracket load-bearing capacity
It cannot be guaranteed that overall weight is big due to bent cap arm length, superelevation idle job in addition is affected by the wind larger, has larger safety
Hidden danger.
Summary of the invention
The purpose of this utility model is that being provided a kind of only suitable for high pier for deficiency existing for current bent cap bracket
Column great cantilever Coping Construction bracket, improves the form of existing carrier structure and load-bearing fulcrum, with improve carrier structure overall stiffness,
Stability and safety, and reduce the influence to pier shaft structure.
The technical solution of the utility model is as follows:
A kind of only column great cantilever Coping Construction bracket of high pier, including the triangle support being arranged in the opposite two side walls of pier stud
Frame, the shelf bracket on each side wall include two A-frames disposed in parallel, each A-frame include vertical bar, cross bar and
The vertical bar lower end of hound, each A-frame is supported on the bracket being installed on pier stud side wall, it is characterised in that: the ox
Leg is bolted with the bracket built-in fitting being embedded in pier shaft, and the top plate of the lower end of the vertical bar and the bracket passes through method
Orchid connection, the upper end of two vertical bars of two A-frames of the every side of pier stud passes through flange with a horizontally disposed distribution beam respectively
Pier stud side wall is close in the side of connection, the distribution beam, and the other side is connect with one end of the cross bar of two A-frames by pin shaft,
The other end of the cross bar is connect with the lower end of the vertical bar by pin shaft；Pass through between two distribution beams of pier stud two sidewalls
Pull rod is connected.
Further, in the only column great cantilever Coping Construction bracket of above-mentioned high pier, the bracket built-in fitting being embedded in pier shaft,
It is parallel to each other including muti-piece and the vertical plate with horizontal plane, has certain intervals, one end of every piece of vertical plate and one between adjacent vertical plate
Connecting plate welding；The plate face of the connecting plate is vertical with the plate face of the vertical plate, on connecting plate between every two pieces of vertical plates
Multiple screw holes are set along the direction parallel with vertical plate plate face, on connecting plate and the one side of vertical plate welding, at each screw hole
Weld an aperture and the consistent nut of screwhole diameter, and the horizontal sealing end steel pipe of corresponding each nut setting one, each sealing end steel
One end of pipe and connecting plate weld and by a nut cover in nozzle；Multiple rows of through-hole is provided on every piece of vertical plate, each vertical plate just
Pair through-hole in intert horizontally disposed transverse reinforcement, a bulkhead is respectively welded in the end of each row's transverse reinforcement；It is described
Vertical plate, connecting plate, transverse reinforcement and bulkhead are embedded in bridge pier shaft concrete, and the side plate face of the connecting plate is exposed
It in pier shaft outer wall, flushes with pier shaft wall surface, and is bolted with the side plate of bracket.
Each inter-module of the utility model mainly passes through bolt or pin shaft connection, avoids the risk of overhead welding operation；It adopts
With bracket shearing resistance, bracket built-in fitting is embedded in pier shaft as bracket load-bearing fulcrum in advance, is easy to position, and uses high-strength bolt with bracket
Connection, quality of connection are easily controllable；Using to pull system antidumping, the bracket of pier shaft two sides is connected as one by pull rod, and
Prestressing force is applied to pull rod, integral strength, bearing capacity and the stability of bracket is substantially increased, ensure that superelevation idle job mistake
The safety of operating personnel in journey.
Detailed description of the invention
Fig. 1 is the schematic view of facade structure of the utility model；
Fig. 2 is the planar structure schematic diagram of the utility model；
Fig. 3 is the side structure schematic view of the utility model；
Fig. 4 is the enlarged drawing of bracket built-in fitting shown in Fig. 1, it is shown that bracket built-in fitting and its connect with bracket
The side view of structure；
Fig. 5 is the enlarged drawing of bracket built-in fitting shown in Fig. 2, it is shown that the plan view of bracket built-in fitting；
Fig. 6 is the enlarged drawing of bracket built-in fitting shown in Fig. 3, it is shown that the front view of bracket built-in fitting.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model includes the triangle support being arranged in the opposite two side walls of pier stud 1
Frame, the shelf bracket on each side wall includes two A-frames disposed in parallel, and each A-frame includes vertical bar 2, cross bar 3
Be supported on the bracket 5 being installed on pier stud side wall with 2 lower end of vertical bar of hound 4, each A-frame, the bracket 5 with
The bracket built-in fitting 6 being embedded in pier shaft is connected by bolt 7, and the top plate of the lower end of the vertical bar 2 and the bracket 5 passes through method
Orchid connection, the upper end of two vertical bars 2 of two A-frames of the every side of pier stud passes through method with a horizontally disposed distribution beam 8 respectively
1 side wall of pier stud is close in orchid connection, the side of the distribution beam 8, and the other side and one end of the cross bar 3 of two A-frames pass through pin shaft
Connection, the other end of the cross bar 3 are connect with the lower end of the vertical bar 2 by pin shaft；Two distribution beams 8 positioned at pier stud two sidewalls
Between by pull rod 9 connect.
Bed die distribution beam 10 is on the cross bar 3 for setting up each shelf bracket.Coping Construction is set up at the top of bed die distribution beam 10
The components such as template.
In an Application Example of the utility model, each pier spacing 50m of the bridge constructed is all made of hollow pier,
The average high 68m of pier, pier top section 8m × 2.6m, pier top use super large cantilever Prestressed Slab Beams, are current domestic solely pillar height Dun Gai
The maximum design of cantilever in beam, lateral length 25.1m, longitudinal width 3m, unilateral arm length 8.55m, all using the utility model
Bracket construction.When it is implemented, the clipping room of two A-frames of the every side of pier stud is away from for 1.7m, bracket distribution beam is by -20mm
Steel plate group weldering, bracket upper lever, column and brace are by bis- [36b channel steel group welderings.4 are used to pull rod32 finish rolling screw threads
Steel, 10 tons of every root application Prestressing.Bracket built-in fitting is embedded in pier stud concrete according to preset absolute altitude when pier stud is constructed
In.
As shown in Fig. 4, Fig. 5, Fig. 6, the bracket built-in fitting 6 being embedded in pier shaft, including muti-piece be parallel to each other and with
The vertical plate 61 of horizontal plane, there is certain intervals between adjacent vertical plate 61, and one end of every piece of vertical plate 61 and a connecting plate 62 weld；Institute
The plate face for stating connecting plate 62 is vertical with the plate face of the vertical plate 61, on connecting plate 62 between every two pieces of vertical plates 61 along with it is vertical
Multiple screw holes are arranged in the parallel direction of plate plate face, and on connecting plate and the one side of vertical plate welding, one is welded at each screw hole
Aperture and the consistent nut 63 of screwhole diameter, and the horizontal sealing end steel pipe 64 of corresponding each setting of nut 63 one, each sealing end steel
One end of pipe 64 and connecting plate 62 weld and cover on a nut 63 in nozzle；Multiple rows of through-hole, In are provided on every piece of vertical plate 61
Intert horizontally disposed transverse reinforcement 65 in the through-hole of each vertical plate face, is respectively welded one in the end of each row's transverse reinforcement 65
Bulkhead 66.
The vertical plate 61, connecting plate 62, transverse reinforcement 65 and bulkhead 66 are embedded in bridge pier shaft concrete, described
The side plate face of connecting plate 62 exposes to 1 outer wall of pier shaft, flushes with pier shaft wall surface, and is connected with the side plate of bracket 5 by bolt 7
It connects.
On the one hand the effect of the bulkhead 66 is positioned to entire built-in fitting, transverse reinforcement 65 and pier shaft are on the other hand made
Reinforcing bar 11 connects integral.When pre-buried in pier shaft, bulkhead 66 is arranged in the outside of pier shaft reinforcing bar 11, and with pier shaft steel
Muscle 11 welds.
The structure of above-mentioned bracket built-in fitting, vertical plate pass through transverse reinforcement and bulkhead and pier shaft as main stress component
Built-in fitting and pier shaft are formed entirety, greatly enhance the stress performance of bracket built-in fitting by structure reinforcing bars connection.Bracket built-in fitting with
Bracket is connected using high-strength bolt, can be to avoid the hole surrounding coagulation being easy to appear in traditional bracket built-in fitting work progress
Situations such as soil is not full, overhead welding quality is not easy to control, reduces security risk.
Claims (3)
1. a kind of only column great cantilever Coping Construction bracket of high pier, including the triangle support being arranged in the opposite two side walls of pier stud
Frame, the shelf bracket on each side wall include two A-frames disposed in parallel, each A-frame include vertical bar, cross bar and
The vertical bar lower end of hound, each A-frame is supported on the bracket being installed on pier stud side wall, it is characterised in that: the ox
Leg is bolted with the bracket built-in fitting being embedded in pier shaft, and the top plate of the lower end of the vertical bar and the bracket passes through method
Orchid connection, the upper end of two vertical bars of two A-frames of the every side of pier stud passes through flange with a horizontally disposed distribution beam respectively
Pier stud side wall is close in the side of connection, the distribution beam, and the other side is connect with one end of the cross bar of two A-frames by pin shaft,
The other end of the cross bar is connect with the lower end of the vertical bar by pin shaft；Pass through between two distribution beams of pier stud two sidewalls
Pull rod is connected.
2. the only column great cantilever Coping Construction bracket of high pier according to claim 1, it is characterised in that: described to be embedded in pier shaft
In bracket built-in fitting, be parallel to each other including muti-piece and the vertical plate with horizontal plane, there is certain intervals between adjacent vertical plate, every piece
One end of vertical plate and a connecting plate weld；The plate face of the connecting plate is vertical with the plate face of the vertical plate, is located on connecting plate
Multiple screw holes are set along the direction parallel with vertical plate plate face between every two pieces of vertical plates, in the one side of connecting plate and vertical plate welding
On, an aperture and the consistent nut of screwhole diameter, and the horizontal sealing end of corresponding each nut setting one are welded at each screw hole
Steel pipe, one end of each sealing end steel pipe and connecting plate weld and by a nut cover in nozzle；It is provided on every piece of vertical plate multiple rows of
Through-hole interts horizontally disposed transverse reinforcement in the through-hole of each vertical plate face, welds respectively in the end of each row's transverse reinforcement
Connect a bulkhead；The vertical plate, connecting plate, transverse reinforcement and bulkhead are embedded in bridge pier shaft concrete, the connection
The side plate face of plate exposes to pier shaft outer wall, flushes with pier shaft wall surface, and is bolted with the side plate of bracket.
3. the only column great cantilever Coping Construction bracket of high pier according to claim 2, it is characterised in that: the bulkhead is located at
On the outside of pier shaft reinforcing bar, and with pier shaft reinforcement welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920031656.8U CN209584871U (en) | 2019-01-08 | 2019-01-08 | A kind of only column great cantilever Coping Construction bracket of high pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920031656.8U CN209584871U (en) | 2019-01-08 | 2019-01-08 | A kind of only column great cantilever Coping Construction bracket of high pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209584871U true CN209584871U (en) | 2019-11-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920031656.8U Active CN209584871U (en) | 2019-01-08 | 2019-01-08 | A kind of only column great cantilever Coping Construction bracket of high pier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528376A (en) * | 2019-09-16 | 2019-12-03 | 中建五局土木工程有限公司 | Buck plate component, load carrier and construction technology |
| CN111088760A (en) * | 2019-12-26 | 2020-05-01 | 中交武汉港湾工程设计研究院有限公司 | Large-height large-cantilever concrete structure prefabricated construction support and installation method thereof |
| CN112538822A (en) * | 2020-11-30 | 2021-03-23 | 中建五局第三建设有限公司 | Bridge rectangular high-pier single-pier capping beam triangular bracket system and construction method |
| CN115012309A (en) * | 2022-05-20 | 2022-09-06 | 中建八局第二建设有限公司 | Overhead supporting device for large cantilever bent cap and construction method |
-
2019
- 2019-01-08 CN CN201920031656.8U patent/CN209584871U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528376A (en) * | 2019-09-16 | 2019-12-03 | 中建五局土木工程有限公司 | Buck plate component, load carrier and construction technology |
| CN111088760A (en) * | 2019-12-26 | 2020-05-01 | 中交武汉港湾工程设计研究院有限公司 | Large-height large-cantilever concrete structure prefabricated construction support and installation method thereof |
| CN112538822A (en) * | 2020-11-30 | 2021-03-23 | 中建五局第三建设有限公司 | Bridge rectangular high-pier single-pier capping beam triangular bracket system and construction method |
| CN115012309A (en) * | 2022-05-20 | 2022-09-06 | 中建八局第二建设有限公司 | Overhead supporting device for large cantilever bent cap and construction method |
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