CN207714114U - A kind of prefabricated high-strength concrete bridge pier - Google Patents
A kind of prefabricated high-strength concrete bridge pier Download PDFInfo
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- CN207714114U CN207714114U CN201721812848.XU CN201721812848U CN207714114U CN 207714114 U CN207714114 U CN 207714114U CN 201721812848 U CN201721812848 U CN 201721812848U CN 207714114 U CN207714114 U CN 207714114U
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Abstract
The utility model provides a kind of prefabricated high-strength concrete bridge pier.The bridge pier includes pier shaft, steel reinforcement framework cage and hole for hoist, and the cross section outer contour shape of pier shaft is composed of the arc section of four or more straightways and four or more, and all arc sections are located on same circumference；Tongue and groove section is provided on the outer surface of pier shaft bottom end；Hole for hoist is circumferentially disposed along pier shaft circumference and runs through pier shaft；Two layers or more of steel reinforcement framework cage is equipped in pier shaft, outermost layer steel reinforcement framework cage is abnormity, and main reinforcement is arranged in the inside of stirrup, and main reinforcement head end is provided with screw thread, and tail end is equipped with tapped sleeve；The steel reinforcement framework cage of remainder layer is circle, and main reinforcement is arranged in the outside of stirrup, and main reinforcement head end and tail end are equipped with tapped sleeve；It is attached by connector between the steel reinforcement framework cage of adjacent two layers.The precast concrete bridge pier of the utility model has many advantages, such as that mechanical property is excellent, strength grade of concrete is high, production technology is easy.
Description
Technical field
The utility model is related to the technical fields that builds a bridge, and in particular to a kind of prefabricated high-strength concrete bridge pier shape and knot
The improvement of structure.
Background technology
In overhead bridge pier in highway and town road, cast in situs formula is mostly used greatly.The concrete bridge of cast in situs
Pier is affected by site environment, and if the rainy day constructs, the quality and construction period of the overhead bridge pier in urban district can not be ensured, right
The environment of surrounding also will produce certain destruction.In addition, since the bridge pier of cast in situs formula is at the construction field (site) directly by concrete
It is filled into prefabricated reinforcing bar, is molded through natural curing, concrete strength influence factor is more.When bridge pier is hollow section
When, using the structure type of bimodulus, mold installation is complicated, long in time limit, and there are steel reinforcement cages for this technique productions concrete pier
To make that complicated, pile concrete resistance to compression and impermeability are poor, there are durabilities poor, easily the problems such as crack, matter occurs
Amount cannot be guaranteed, and the materials such as consumption concrete, steel are excessive when pouring making and waste national resources.
The bridge pier of part engineering is transformed into prefabrication by cast-in-place as a result, but in the manufacture craft of precast pier, generally
It is not high that there are mechanization degrees, and especially in the making of steel reinforcement framework cage, still more dependence manually binds progress, this is not
Working efficiency is only influenced, it is poor to also result in the reason of steel reinforcement cage is because of human factor there are fastnesses, and main reinforcement is easy sliding, prefabricated bridge
In pier forming process, it is easy to happen main reinforcement dislocation, or even the serious quality problems such as main reinforcement is exposed occur.
Invention content
To overcome problem above, a kind of mechanical property of the utility model offer is excellent, strength grade of concrete is high, factory's system
Work, simple production process are convenient, hoisting transportation is convenient, economical and efficient precast concrete bridge pier, to solve the mixed of cast in situs
Solidifying soil bridge pier there are the problem of.
To solve technical problem, the utility model is realized in the following way：
A kind of prefabricated high-strength concrete bridge pier, including pier shaft, steel reinforcement framework cage and hole for hoist, pier shaft are elongated hollow knot
Structure, the cross section outer contour shape of the pier shaft be combined by the arc section of four or more straightways and four or more and
At all arc sections are located on same circumference；It is provided with tongue and groove section on the outer surface of the pier shaft bottom end；The hole for hoist
It is circumferentially disposed along pier shaft circumference and run through pier shaft；Two layers or more of steel reinforcement framework cage, every layer of framework of steel reinforcement are equipped in the pier shaft
Cage includes main reinforcement and stirrup, wherein outermost steel reinforcement framework cage is abnormity, and main reinforcement is arranged in the inside of stirrup, main reinforcement
Head end is provided with screw thread, and main reinforcement tail end is provided with tapped sleeve；The steel reinforcement framework cage of remainder layer is circle, and main reinforcement is set
It sets in the outside of stirrup, main reinforcement head end and tail end are both provided with tapped sleeve；Between the steel reinforcement framework cage of adjacent two layers
It is attached by connector.
Further, diameter of a circle where the arc section is 1.5 times~2.5 times of the length of straigh line.
Further, the tongue and groove section is arranged in pier shaft length range of 0.4 times away from pier shaft bottom end.
Further, the hole for hoist is arranged in pier shaft length range of 0.3 times away from pier shaft top, the hole for hoist
Quantity is more than two and circumferentially symmetrically and evenly arranges.
Further, the top of the outermost steel reinforcement framework cage is longer than pier shaft top, and bottom end and pier shaft bottom end are neat
In flat or shorter than pier shaft bottom end 10cm；The top and bottom end of the steel reinforcement framework cage of remainder layer and flushing for pier shaft.
Further, the shape of the outermost steel reinforcement framework cage is by four or more straightways and four or more
Arc section be composed, all arc sections are located on same circumference.Diameter of a circle where the arc section is the straight line
1.5 times of segment length~2.5 times.
Further, the reach of the main reinforcement head end setting of the outermost steel reinforcement framework cage is not more than 40cm.
Further, the both ends of the connector are hook-shaped.
The beneficial effects of the utility model are：
(1) by prefabrication, the mode of on-site consolidation can shorten the construction period, can be to avoid mixed using field cast-in-place
Solidifying soil constructing structure there are the problem of, live manpower and construction cost can be greatly lowered, shorten construction period, meet green ring
Protect the requirement of construction.
(2) effectively save national resources.Concrete amount per linear meter(lin.m.) bridge pier is less than existing square, circular cross-section bridge
The concrete amount of pier, and anti-bending strength can reach the bridge pier of former section form.
(3) tongue and groove section is set in the bottom of pier shaft, keeps the bonding of bridge pier bottom and concrete more firm, makes pedestal
Better contact is installed, improves interface roughness so that bridge pier more fastens.
(4) outer reinforcement framework cage is more than pier shaft length, and the connection for later stage and superstructure provides Bar Anchorage.Together
When, the main reinforcement of outer reinforcement framework cage is arranged in the inside of stirrup, the main reinforcement of internal layer steel reinforcement framework cage is arranged in the outer of stirrup
Side, this more meets bridge pier in actual stress, it is ensured that the stability of bridge pier structure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model bridge pier, wherein 1- pier shafts, 2- steel reinforcement framework cages, 3- holes for hoist, 4-
Tongue and groove section, 5- outer layer main reinforcements, 6- internal layer main reinforcements.
Fig. 2 is the schematic cross-section of the utility model bridge pier, wherein 7- outer reinforcement framework cages, 8- internal layer frameworks of steel reinforcement
Cage, 9- outer layer stirrups, 10- internal layer stirrups, 11- screw threads, 12- sleeves, 13- connectors.
Fig. 3 is the steel reinforcement framework cage schematic diagram of the utility model bridge pier.
Specific implementation mode
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
A kind of prefabricated high-strength concrete bridge pier of the present embodiment, as shown in Figure 1, including pier shaft 1, steel reinforcement framework cage 2 and hanging
Fill hole 3.Pier shaft 1 is elongated hollow structure, and the cross section outer contour shape of pier shaft 1 is by four straightways and four arc section groups
It closes, on the same circumference, place diameter of a circle is 1.5 times~2.5 times of length of straigh line to arc section.In pier shaft 1
Bottom end more than be provided with tongue and groove section 4 on outer surface in 0.4 times of long range of pier.Hole for hoist 3 is arranged in 0.3 times away from pier top pier
It is circumferentially disposed along 1 circumference of pier shaft and run through pier shaft 1 within the scope of body length, quantity be 2 and it is symmetrical, be evenly arranged.
As shown in Figure 2,3, steel reinforcement framework cage 2 is arranged in pier shaft 1, is made of inside and outside two layers of steel reinforcement framework cage, every layer of steel
Tendons skeleton cage includes main reinforcement and stirrup, and wherein outer reinforcement framework cage 7 is abnormity, and contour shape is also by four straightways
It is composed with four arc sections, on the same circumference, the profile of internal layer steel reinforcement framework cage 8 is circle to arc section.Outer layer steel
The top of tendons skeleton cage 7 is longer than 1 top of pier shaft, bottom end flushed with 1 bottom end of pier shaft or shorter than pier shaft bottom end 10cm in；Internal layer steel
The length of tendons skeleton cage 8 is equal to 1 length of pier shaft, and top and bottom end are flushed with the top of pier shaft 1 and bottom end.For outer reinforcement
Framework cage 7, outer layer main reinforcement 5 are arranged in the inside of outer layer stirrup 9, and 5 head end of outer layer main reinforcement is provided with screw thread 11, and reach is not
More than 40cm, female sleeve 12 is arranged in tail end；For internal layer steel reinforcement framework cage 8, internal layer main reinforcement 6 is arranged in internal layer stirrup
Female sleeve 12 is arranged in 10 outside, head end, the tail end of internal layer main reinforcement 6.Pass through between inside and outside two layers of steel reinforcement framework cage
Connector 13 is attached, and the both ends of the connector 13 in the present embodiment are equipped with hook.
Claims (9)
1. a kind of prefabricated high-strength concrete bridge pier, including pier shaft, steel reinforcement framework cage and hole for hoist, pier shaft is elongated hollow structure,
It is characterized in that, the cross section outer contour shape of the pier shaft is by the arc section of four or more straightways and four or more
It is composed, all arc sections are located on same circumference；It is provided with tongue and groove section on the outer surface of the pier shaft bottom end；It is described
Hole for hoist is circumferentially disposed along pier shaft circumference and runs through pier shaft；Two layers or more of steel reinforcement framework cage, every layer of steel are equipped in the pier shaft
Tendons skeleton cage includes main reinforcement and stirrup, wherein outermost steel reinforcement framework cage is abnormity, and main reinforcement is arranged in stirrup
Side, main reinforcement head end are provided with screw thread, and main reinforcement tail end is provided with tapped sleeve；The steel reinforcement framework cage of remainder layer is circle,
Its main reinforcement is arranged in the outside of stirrup, and main reinforcement head end and tail end are both provided with tapped sleeve；The reinforcing bar of adjacent two layers
It is attached by connector between frame cage.
2. a kind of prefabricated high-strength concrete bridge pier according to claim 1, which is characterized in that circle where the arc section
1.5 times of a diameter of length of straigh line~2.5 times.
3. a kind of prefabricated high-strength concrete bridge pier according to claim 1, which is characterized in that the tongue and groove section setting exists
In pier shaft length range of 0.4 times away from pier shaft bottom end.
4. a kind of prefabricated high-strength concrete bridge pier according to claim 1, which is characterized in that hole for hoist setting away from
In the pier shaft length range on 0.3 times of pier shaft top, the quantity of the hole for hoist is more than two and circumferentially symmetrically and evenly arranges.
5. a kind of prefabricated high-strength concrete bridge pier according to claim 1, which is characterized in that the outermost reinforcing bar
The top of frame cage is longer than pier shaft top, bottom end flushed with pier shaft bottom end or shorter than pier shaft bottom end 10cm in；The reinforcing bar of remainder layer
The top and bottom end of framework cage and flushing for pier shaft.
6. a kind of prefabricated high-strength concrete bridge pier according to claim 1, which is characterized in that the outermost reinforcing bar
The shape of frame cage is composed of the arc section of four or more straightways and four or more, and all arc sections are located at same
On one circumference.
7. a kind of prefabricated high-strength concrete bridge pier according to claim 6, which is characterized in that circle where the arc section
1.5 times of a diameter of length of straigh line~2.5 times.
8. a kind of prefabricated high-strength concrete bridge pier according to claim 1, which is characterized in that the outermost reinforcing bar
The reach of the main reinforcement head end setting of frame cage is not more than 40cm.
9. a kind of prefabricated high-strength concrete bridge pier according to claim 1, which is characterized in that the both ends of the connector are
It is hook-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721812848.XU CN207714114U (en) | 2017-12-22 | 2017-12-22 | A kind of prefabricated high-strength concrete bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721812848.XU CN207714114U (en) | 2017-12-22 | 2017-12-22 | A kind of prefabricated high-strength concrete bridge pier |
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| Publication Number | Publication Date |
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| CN207714114U true CN207714114U (en) | 2018-08-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235236A (en) * | 2018-08-28 | 2019-01-18 | 中交第二公路勘察设计研究院有限公司 | The hollow pipe pier of assembled and its construction method based on flanged joint |
| CN112030727A (en) * | 2020-08-26 | 2020-12-04 | 绍兴文理学院 | Assembled prefabricated steel-concrete combined pier and construction method thereof |
| CN112112180A (en) * | 2020-08-26 | 2020-12-22 | 绍兴文理学院 | Connecting system of assembled combined pier and bearing platform and construction method thereof |
| CN114293475A (en) * | 2021-12-31 | 2022-04-08 | 中交路桥华南工程有限公司 | Split ring sleeving construction method for variable-section large-section pier tower reinforcement cage segment |
-
2017
- 2017-12-22 CN CN201721812848.XU patent/CN207714114U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235236A (en) * | 2018-08-28 | 2019-01-18 | 中交第二公路勘察设计研究院有限公司 | The hollow pipe pier of assembled and its construction method based on flanged joint |
| CN109235236B (en) * | 2018-08-28 | 2020-08-07 | 中交第二公路勘察设计研究院有限公司 | Assembly type hollow pipe pier based on flange connection and construction method thereof |
| CN112030727A (en) * | 2020-08-26 | 2020-12-04 | 绍兴文理学院 | Assembled prefabricated steel-concrete combined pier and construction method thereof |
| CN112112180A (en) * | 2020-08-26 | 2020-12-22 | 绍兴文理学院 | Connecting system of assembled combined pier and bearing platform and construction method thereof |
| CN114293475A (en) * | 2021-12-31 | 2022-04-08 | 中交路桥华南工程有限公司 | Split ring sleeving construction method for variable-section large-section pier tower reinforcement cage segment |
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