CN206553945U - A kind of pier-side bracket system - Google Patents
A kind of pier-side bracket system Download PDFInfo
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- CN206553945U CN206553945U CN201720178988.XU CN201720178988U CN206553945U CN 206553945 U CN206553945 U CN 206553945U CN 201720178988 U CN201720178988 U CN 201720178988U CN 206553945 U CN206553945 U CN 206553945U
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Abstract
The utility model is related to bridge construction technical field, more particularly to a kind of pier-side bracket system, it is included to pull system, anchor ear system and two A-frames for being symmetricly set on pier shaft both sides, A-frame includes horizontal bearing frame, perpendicular support and diagonal brace, and horizontal bearing frame, diagonal brace and perpendicular support are sequentially connected with to form A-frame structure；The anchor ear system includes top truss, lower truss and hooping structure, and top truss and lower truss are respectively arranged on the two ends of perpendicular support, the top truss and the lower truss and are equipped with hooping structure；Used between two top truss, between two lower truss and tensioning fixation is carried out to pull system.The utility model can solve the problem that the problem of existing construction is not suitable for profundal zone operation at sea, simple in construction, it is easy to operate, and repeatable utilization, and energy-conserving and environment-protective, the construction method of bent cap carried out by the utility model, efficiency of construction is high, and construction cost is low.
Description
Technical field
The utility model is related to bridge construction technical field, more particularly to a kind of pier-side bracket system.
Background technology
Coping Construction is the emphasis of bridge construction in bridge, and the main construction method of current bent cap is to set up full framing
Method, but be mostly marine profundal zone operation during sea-spanning bridge con struction, construction pier stud bent cap is not suitable for setting up full hall load-bearing
Support, and Cast-in-place Bent Cap construction can not be carried out using conventional floor stand method；Specific to Daliang City, during municipal government is in order to alleviate
The traffic pressure on Shanxi road, an East and West direction trunk parallel to Zhongshan Road and Huangpu road is built in Daliang City black stone reef gulf
Road --- southern Binhai Road star bay bridge spanning the sea.Main line is individual layer two-wire bridge in starting point, and line spacing is 55m.Main line
At sea gradually transition is dual deck bridge, and when by Xinghai Square, circuit is perpendicular to square axis, main bridge main span centre bit
In on the axis of square, circuit is 1000m apart from the distance of the century-old sculptures or statues displayed in urban public areas in Xinghai Square, and main line is westwards after double layered transition is individual layer
In High-tech Park, reclaimation area is logged in.Bridge total length about 6km.Star bay bridge spanning the sea eastern section engineering by eastern connecting line, eastern access bridge and
The part of east side Long span concrete access bridge three is constituted, its Middle East access bridge S1-S23, X1-X8 pier, eastern connecting line ring road A1-A7,
B1-B10 piers are designed as high-rise pile cap, only post hollow pier, and pier height is more than 20m, and pier top is bent cap, and pier stud direction across bridge is wide
4.5m, the long 14.9m of bent cap direction across bridge, high 2.0m, along bridge to wide 3.4m, both sides are encorbelmented 5.2m length, and all marine profundal zones are made
Industry.
Therefore, in view of the active demand that bridge spanning the sea is built at present, it is necessary to provide a kind of new pier-side bracket, be used to
Overcome the problem of existing highway bridge construction is not suitable for marine profundal zone operation.
Utility model content
(1) technical problem to be solved
The utility model provides a kind of pier-side bracket system, and profundal zone operation at sea is not suitable for for solving existing construction
The problem of, its structure type is simple, it is easy to processing and fabricating and installation, and simple installation is quick, and efficiency of construction is high, and construction cost
It is low.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of pier-side bracket system, including to pull system, anchor ear
System and two A-frames for being symmetricly set on pier shaft both sides, the A-frame include horizontal bearing frame, erect support and oblique
Support, the horizontal bearing frame, diagonal brace and perpendicular support are sequentially connected with to form A-frame structure；The anchor ear system includes top purlin
Frame, lower truss and hooping structure, the top truss and the lower truss are respectively arranged on the upper and lower ends of the perpendicular support, institute
State and be equipped with the hooping structure on top truss and the lower truss, the outer wall for bridge pier pier shaft of fitting；Described in two
Used between the truss of top, between two lower truss and tensioning fixation is carried out to pull system.
Wherein, it is described that fining twisted steel is included to pull system, between two top truss, two lower truss
Between using the fining twisted steel carry out tensioning fixation.
Wherein, the fining twisted steel is multiple.
Wherein, tensioning fixation is carried out using 6 fining twisted steels between two top truss.
Wherein, tensioning fixation is carried out using 2 fining twisted steels between two top truss.
Wherein, the hooping structure is circular arc steel plate anchor ear.
Wherein, the horizontal bearing frame includes two crossbeams be arrangeding in parallel.
Wherein, between the horizontal bearing frame and the diagonal brace, it is hinged between the diagonal brace and the perpendicular support with steel.
(3) beneficial effect
The pier-side bracket system that the utility model is provided, has the characteristics that compared to prior art：
1st, pier-side bracket system of the present utility model, structure type is simple, it is easy to which processing and fabricating and installation, simple installation are fast
Victory, efficiency of construction is high, and construction cost is low；
2nd, pier-side bracket system of the present utility model, is stress point using the lower limb point of the support of oblique triangle, by upper and lower
Frictional force between two groups of hooping structures and pier shaft outer wall and to the stretching force of pull system by pier-side bracket system by bridge pier two
The A-frame of side constitutes an entirety, and is stabilized on solid concrete bridge pier pier shaft, and this kind of form can reduce whole support
Bending stress and the maximum defluxion of cantilever segment end that frame is born in bent cap cantilever segment, the pier-side bracket for being meet and applied in bent cap
Strength and stiffness required for during work.
Brief description of the drawings
Fig. 1 is arranged on the front view on bridge pier for the pier-side bracket system that the utility model is provided；
Fig. 2 is arranged on the top view on bridge pier for the pier-side bracket system that the utility model is provided；
Fig. 3 is arranged on the overall structure figure on bridge pier for the pier-side bracket system that the utility model is provided；
In figure, 1：Horizontal bearing frame；101：Crossbeam；102：Longeron；2：Perpendicular support；3：Diagonal brace；4：Top truss；5：Bottom purlin
Frame；6：Hooping structure；7：To pull system；8：Bridge pier.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.It these are only preferred embodiment of the present utility model, and unprovoked
This limits the scope of the claims of the present utility model, equivalent structure that every utilization the utility model specification and accompanying drawing content are made or
Equivalent flow conversion, or other related technical fields are directly or indirectly used in, similarly it is included in of the present utility model special
In sharp protection domain.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all combination of one or more related Listed Items.
The utility model provides a kind of pier-side bracket system, and profundal zone at sea is not suitable for for solving existing Coping Construction
The problem of operation, its structure type is simple, it is easy to processing and fabricating and installation, and simple installation is quick, and efficiency of construction is high, and is constructed into
This is low.
As Figure 1-3, a kind of pier-side bracket system is provided in the utility model embodiment, including to pull system, anchor ear
System and two A-frames for being symmetricly set on the both sides of bridge pier 8, A-frame include horizontal bearing frame 1, perpendicular support 2 and diagonal brace
3, horizontal bearing frame 1, diagonal brace 3 and perpendicular support 2 are sequentially connected with to form A-frame structure；Anchor ear system includes top truss 4, bottom
Truss 5 and hooping structure 6, top truss 4 and lower truss 5 are respectively arranged on the upper and lower ends of perpendicular support 2, top truss 4 and bottom
Hooping structure 6 is equipped with truss 5, outer wall of the hooping structure 6 for bridge pier 8 of fitting when installing A-frame；On two
Used between portion's truss 4, between two lower truss 5 and tensioning fixation is carried out to pull system 7 so that the triangle branch of the both sides of bridge pier 8
Frame into one to tension solid to pull system by overally supporting system, to improve the resistance to overturning of pier-side bracket, by the pier
Rack system is supported and fixed on bridge pier 8 by the way that the bolt system being embedded in the pier shaft of bridge pier 8 is stable, improves pier-side bracket system
Resistance to capsizing during Coping Construction.It is understood that multiple bolt systems are set on the pier shaft of bridge pier 8, to improve
Support the steadiness of pier-side bracket system.
Because the cantilever segment of bent cap is general longer, if relying solely on during horizontal bearing frame can not undertake Coping Construction
The load transmitted, the outer end of horizontal bearing frame is supported using diagonal brace, branch stands on the perpendicular lower end supportted to diagonal brace downwards, by flat upwards
The support for the oblique triangle that bearing frame, diagonal brace and perpendicular support connection are formed is put, its lower limb point is stress point, passes through upper and lower two groups of anchor ears
Frictional force between structure and pier shaft outer wall and to the stretching force of pull system by pier-side bracket system by the triangle of the both sides of bridge pier 8
Support constitutes an entirety, and is stabilized on the pier shaft of solid concrete bridge pier 8, and this kind of form can reduce whole bracket in bent cap
Bending stress and the maximum defluxion of cantilever segment end that cantilever segment is born, the pier-side bracket for being are met during Coping Construction
Required strength and stiffness；The cantilever horizontal bearing frame for stretching out pier shaft both sides is capable of in the load of uniform bent cap, work progress,
The size of its cantilever is customized and is processed inside according to different bent cap sizes.
The pier-side bracket system that the utility model is provided, structure type is simple, it is easy to processing and fabricating and installation, simple installation
Fast, efficiency of construction is high, and construction cost is low, and the machinery needed for during the Coping Construction is all the most frequently used in bridge construction
Equipment, the special or complex device special without adding, technical process is brief, it is easy to operate, and is particularly suitable for use on lake, river
The water middle rings such as upper, sea are constructed pier cap beam within the border, the construction of cantilever bent cap can be completed without setting up full framing, by the pier
Bracket can be reused, energy-conserving and environment-protective.
In the present embodiment, fining twisted steel is included to pull system 7, between two top truss 4, two lower truss 5 it
Between using fining twisted steel carry out tensioning fixation.It is understood that fining twisted steel is worn between two top truss 4,
And it is locked using locking device in the outside of two top truss 4；Finish rolling spiral shell is worn between two lower truss 5
Line steel, and it is locked using locking device in the outside of two lower truss 5；Distinguish two again by fining twisted steel
Tensioning is locked between two lower truss 5 between top truss 4, so as to realize symmetrically arranged two A-frames in bridge pier
Installation on pier shaft is consolidated.
In the present embodiment, in order to ensure two A-frames to the tight intensity of zip, fining twisted steel sets multiple, that is, exists
Set between two top truss 4 and multiple fining twisted steels are set between multiple fining twisted steels, two lower truss 5.Specifically
, carried out between two top truss 4 using 6 fining twisted steels between tensioning fixation, two lower truss 5 using 2 essences
Roll screw-thread steel and carry out tensioning fixation.
In the present embodiment, in order that obtaining A-frame is set in the outside of bridge pier 8, the anchor ear of the outer wall for the pier shaft of bridge pier 8 of fitting
Structure 6 is circular arc steel plate anchor ear.
In the present embodiment, it will be capable of the load of uniform bent cap to horizontal bearing frame 1, thus the intensity of horizontal bearing frame 1 with
Rigidity needs certain requirement, and the horizontal bearing frame 1 in the pier-side bracket system includes two crossbeams 101 be arrangeding in parallel,
Connected between the outer end of two parallel crossbeams 101 by longeron 102, the inner of two crossbeams 101 is all connected with top truss 4.
In the present embodiment, in order to ensure the structural stability and robustness of A-frame structure, horizontal bearing frame 1 with tiltedly
It is hinged between support 3, between diagonal brace 3 and perpendicular support 2 with steel.
The pier-side bracket of the present invention uses shaped steel triangle angle-table bracket, does main bearing beam, channel-section steel box by I-steel and erects
Support and the composition of diagonal brace, the common two panels triangular supports in pier stud one side are that top and the bottom truss is horizontal by two rectangle steel box-girders up and down
To connection, steel box-girder is welded by the thick steel plates of 25mm are elongated, and two brackets, spacing 1.5m, in steel are welded on bottom steel case
Circular anchor ear is set between box beam and pier shaft side；Diameter 32mm fining twisted steels are worn at steel box-girder two ends up and down and carry out tensioning holding pier
Post.
Based on pier-side bracket system of the present utility model, the Cast-in-place Bent Cap construction party carried out using the pier-side bracket system
Method, including following operation：
(1) pier-side bracket system structure design
Both sides of bridge pier 8 below bent cap respectively install between 1 A-frame, A-frame with to pull system to zip
It is fixed, prevent its sidesway；A-frame includes horizontal bearing frame 1, perpendicular support 2 and diagonal brace 3, and horizontal bearing frame 1, diagonal brace 3 and perpendicular support 2 are suitable
Secondary connection forms A-frame structure；Anchor ear system includes top truss 4, lower truss 5 and hooping structure 6, the He of top truss 4
Lower truss 5 is respectively arranged on the upper and lower ends of perpendicular support 2, top truss 4 and lower truss 5 and is equipped with hooping structure 6, is installing
Outer wall of the hooping structure 6 for bridge pier 8 of fitting during A-frame；Between two top truss 4, between two lower truss 5
Using to pull system 7 carry out tensioning fixation so that the A-frame of the both sides of bridge pier 8 by pull system to tense solid into one
Integrated support system, to improve the resistance to overturning of pier-side bracket；
Specifically, including to pull system 7 between fining twisted steel, two top truss 4, being adopted between two lower truss 5
Tensioning fixation is carried out with fining twisted steel；
In order to ensure two A-frames to the tight intensity of zip, fining twisted steel sets multiple, i.e., in two top purlin
Set between frame 4 and multiple fining twisted steels are set between multiple fining twisted steels, two lower truss 5.Specifically, two tops
Carried out between truss 4 using 6 fining twisted steels between tensioning fixation, two lower truss 5 using 2 fining twisted steels progress
Tensioning fixation；
In order that obtaining A-frame is set in the outside of bridge pier 8, the hooping structure 6 of the laminating pier shaft outer wall of bridge pier 8 is Circular Steel
Plate anchor ear；
It will be capable of the load of uniform bent cap to horizontal bearing frame 1, therefore the strength and stiffness of horizontal bearing frame 1 need one
Horizontal bearing frame 1 in fixed requirement, the pier-side bracket system includes two crossbeams 101 be arrangeding in parallel, two parallel horizontal strokes
Connected between the outer end of beam 101 by longeron 102, the inner of two crossbeams 101 is all connected with top truss 4；
In order to ensure the structural stability and robustness of A-frame structure, between horizontal bearing frame 1 and diagonal brace 3, tiltedly
It is hinged between support 3 and perpendicular support 2 with steel；
(2) Bridge Pier Construction and installation of embedded parts
Bridge pier 8 construction to away from bent cap bottom setpoint distance when in the pier shaft of bridge pier 8 pre-embedded bolt system；The bolt system is
During in order to install pier-side bracket system in the both sides of bridge pier 8, play a part of the firm pier-side bracket system of support, improve pier-side bracket
Resistance to capsizing of the system during Coping Construction.It is understood that in order to improve the firm of support pier-side bracket system
Pre-buried multiple bolt systems on property, the pier shaft of bridge pier 8；
(3) pier-side bracket system is installed
A. the form removal of bridge pier 8 and concrete strength reach starts to install pier-side bracket system after design strength,
B. A-frame is lifted, the bottom of the A-frame of the side of bridge pier 8 is that lower truss 5 is seated in the correspondence of bridge pier 888
In the bolt system of position, the outside of the laminating of hooping structure 6 bridge pier 8, the top of A-frame is that horizontal bearing frame 1 is existed by jack
Stress in the cage bar of bridge pier 8,
C. above-mentioned b step is repeated, the installation of the A-frame of the opposite side of bridge pier 8 is completed,
D. installed on two top truss 4 to pull system 7, and carry out tensioning, realize between two top truss 4
Zip is determined, and is installed on two lower truss 5 to pull system 7, and carries out tensioning, realizes the tensioning between two lower truss 5
Locking, so that the A-frame of the both sides of bridge pier 8 is locked with to pull system 7,
Specifically, wearing fining twisted steel between two top truss 4, and used in the outside of two top truss 4
Locking device is locked to it；Wear fining twisted steel between two lower truss 5, and in the outer of two lower truss 5
It is locked using locking device side；Pass through between fining twisted steel difference again two top truss 4 and two bottoms purlin
Tensioning is locked between frame 5, so as to realize that installation of symmetrically arranged two A-frames on the pier shaft of bridge pier 8 is consolidated.It can manage
Solution, in order to ensure two A-frames to the tight intensity of zip, multiple finish rolling screw threads are set between two top truss 4
Multiple fining twisted steels are set between steel, two lower truss 5；
E. check and fasten pier-side bracket system；
Specifically, fining twisted steel tensioning to design stress tonnage to fasten pier-side bracket system, with convenient follow-up
Coping Construction；
(4) Prestressed Slab Beams are constructed
A. bed die is laid after A-frame installation on girder, prestress pipe is pre-installed in installation, assembling reinforcement, and
Side form is installed；
B. bent cap concrete is poured；
C. when bent cap concrete strength reaches requirement, stretch-draw prestressing force steel beam,
D. hole path pressure grouting and sealing off and covering anchorage work are carried out after prestressed stretch-draw in time, Prestressed Slab Beams construction is completed
(5) pier septate mode plate and A-frame are removed
Dismounting bent cap side form, bed die successively, unclamp tensioning A-frame to pull system 7, dismantle A-frame.
The construction method utilizes pier-side bracket system, the machinery needed for during the Coping Construction be all in bridge construction most
Conventional equipment, the special or complex device special without adding, technical process is brief, it is easy to operates, is particularly suitable for use in lake
On upper, river, the water middle ring such as sea construct within the border pier cap beam, can complete the construction of cantilever bent cap without setting up full framing,
It ensure that the precision, intensity requirement and safety requirements of Coping Construction；It can thoroughly, effectively solve Single column pier bent cap cantilever
The technical barrier of overlength is held, blank of the domestic bridge construction in correlative technology field has been filled up.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of pier-side bracket system, it is characterised in that including being symmetricly set on pier shaft two to pull system, anchor ear system and two
The A-frame of side, the A-frame includes horizontal bearing frame, perpendicular support and diagonal brace, the horizontal bearing frame, diagonal brace and perpendicular
Support is sequentially connected with to form A-frame structure；The anchor ear system include top truss, lower truss and hooping structure, it is described on
Portion's truss and the lower truss are respectively arranged on the upper and lower ends of the perpendicular support, the top truss and the lower truss
Provided with the hooping structure, the outer wall for bridge pier pier shaft of fitting；Between two top truss, two lower truss
Between use to pull system carry out tensioning fixation.
2. pier-side bracket system according to claim 1, it is characterised in that described that fining twisted steel is included to pull system,
Tensioning fixation is carried out using the fining twisted steel between two top truss, between two lower truss.
3. pier-side bracket system according to claim 2, it is characterised in that the fining twisted steel is multiple.
4. pier-side bracket system according to claim 3, it is characterised in that 6 are used between two top truss
Fining twisted steel carries out tensioning fixation.
5. pier-side bracket system according to claim 3, it is characterised in that 2 are used between two top truss
Fining twisted steel carries out tensioning fixation.
6. the pier-side bracket system according to any one of claim 1-5, it is characterised in that the hooping structure is circular arc
Steel plate anchor ear.
7. the pier-side bracket system according to any one of claim 1-5, it is characterised in that the horizontal bearing frame includes
Two crossbeams for be arrangeding in parallel, the outer end of two crossbeams is connected by longeron, two crossbeams it is inner with it is described
Top truss connection.
8. the pier-side bracket system according to any one of claim 1-5, it is characterised in that the horizontal bearing frame and institute
State between diagonal brace, be hinged between the diagonal brace and the perpendicular support with steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720178988.XU CN206553945U (en) | 2017-02-27 | 2017-02-27 | A kind of pier-side bracket system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720178988.XU CN206553945U (en) | 2017-02-27 | 2017-02-27 | A kind of pier-side bracket system |
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| Publication Number | Publication Date |
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| CN206553945U true CN206553945U (en) | 2017-10-13 |
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| CN201720178988.XU Active CN206553945U (en) | 2017-02-27 | 2017-02-27 | A kind of pier-side bracket system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700102A (en) * | 2019-10-12 | 2020-01-17 | 重庆建工建筑产业技术研究院有限公司 | Construction method of prestressed steel structure front-pull rear-lock cast-in-place platform |
-
2017
- 2017-02-27 CN CN201720178988.XU patent/CN206553945U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700102A (en) * | 2019-10-12 | 2020-01-17 | 重庆建工建筑产业技术研究院有限公司 | Construction method of prestressed steel structure front-pull rear-lock cast-in-place platform |
| CN110700102B (en) * | 2019-10-12 | 2024-01-09 | 重庆建工建筑产业技术研究院有限公司 | Construction method of pre-stress steel structure front-pull rear-lock cast-in-situ platform |
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