CN204551239U - The steel concrete compound bridge pier that a kind of impact resistance is strong - Google Patents
The steel concrete compound bridge pier that a kind of impact resistance is strong Download PDFInfo
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- CN204551239U CN204551239U CN201520149691.1U CN201520149691U CN204551239U CN 204551239 U CN204551239 U CN 204551239U CN 201520149691 U CN201520149691 U CN 201520149691U CN 204551239 U CN204551239 U CN 204551239U
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- bridge pier
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- ribbing
- wall circular
- concrete
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Abstract
The utility model discloses the steel concrete compound bridge pier that a kind of impact resistance is strong, comprise reinforced concrete knoll body, the thin-wall circular steel pipe etc. of Ribbed Bar, channel-section steel (or i iron), concrete filled, above-mentioned according to forming a kind of Novel reinforced concrete compound bridge pier after composite design.The impact resistant capability of steel concrete compound bridge pier described in the utility model is better than the ordinary reinforced concrete bridge pier traditionally designed; in order to solve the damage that Urban Bridge bridge pier suffers to occur during Vehicular impact, problem of collapsing, realize effective protection of bridge pier and the protection to greatest extent to vehicle crew's injury.
Description
Technical field
The utility model relates to the strong steel concrete compound bridge pier of a kind of impact resistance, belongs to civil engineering structure, crashproof the subtracting of bridge construction hits technical field.
Background technology
Bridge pier in civil engineering structure, particularly bridge construction, often suffers the strong shock of shipping vehicle, causes the violent destruction of bridge pier structure even to collapse, serious bridge construction safely, cause the damage of shipping vehicle and personnel's injury, consequence is very serious.Therefore, reduce the strong impact of shipping vehicle, improve the impact resistant capability of bridge pier, farthest reduce the bridge pier damage and fracture caused because of shock and collapse, become the hot issue that current bridge engineering and traffic engineering circle are very paid close attention to, there is very important engineering significance and social effect.
For reduction boats and ships to the impact problem of bridge pier, more existing Anticollision Measures at present, as fender pile, anticollision box etc.But these anticollision device, collision-prevention devices are bulky, the making such as multiplex steel work, composite material, volume is large, not higher than energy-absorbing rate, and cost is high, is generally suitable for the situation that waters is larger.For the bridge pier of Urban Bridge, often suffer Vehicular impact, due to the restriction of path space under bridge, that class can not be adopted for the huge anticollision device, collision-prevention device of anti-ship collision.Therefore, researching and developing the bridge pier that impact resistant capability is strong, suffering the destructiveness of Vehicular impact for reducing Urban Bridge bridge pier, prevent bridge be impacted and collapse, ensure the fluent and ecological environment of urban traffic, be of great practical significance.
Utility model content
The purpose of this utility model is the bridge pier providing a kind of impact resistant capability strong, in order to solve the damage that Urban Bridge bridge pier suffers to occur during Vehicular impact, problem of collapsing, realizes effective protection of bridge pier and the protection to greatest extent to vehicle crew's injury.
The technical solution adopted in the utility model is: the steel concrete compound bridge pier that a kind of impact resistance is strong, comprise reinforced concrete knoll body, longitudinal reinforcement, longitudinal spiral reinforcing bar with ribbing, bar dowel with ribbing, channel-section steel or i iron, thin-wall circular steel pipe, concrete filled and diagonal reinforcement skeleton with ribbing, described reinforced concrete knoll body is arranged on cushion cap, two thin-wall circular steel pipes are provided with in reinforced concrete knoll body, concrete filled is provided with in thin-wall circular steel pipe, thin-wall circular steel pipe surrounding is provided with longitudinal reinforcement, two thin-wall circular steel pipes are welded together by channel-section steel or i iron, described longitudinal spiral reinforcing bar with ribbing is welded on thin-wall circular steel tube surface according to design inclination angle, described bar dowel with ribbing is welded on channel-section steel according to design inclination angle or i iron contacts concrete surface, in order to increase the cementitiousness between steel surface and concrete, described diagonal reinforcement frame welding with ribbing is between two thin-wall circular steel pipes, there is the ability that comprehensive raising bridge pier anti-collision cuts intensity.
As preferably, described concrete filled is high-strength concrete, and its intensity adopts more than C50-C60.
The utility model adopts and arrange channel-section steel or i iron in the altitude range that bridge pier is certain, and the thin-wall circular steel pipe of concrete filled, steel material used increases few, but can obtain and have higher impact resistance intensity than the ordinary reinforced concrete of conventional design, bridge pier anti-collision and crash-worthiness can be increased substantially.
The utility model has fully utilized channel-section steel or the advantage of i iron in lateral rigidity and shear strength, anti-biasing ability in conjunction with the thin-wall circular steel pipe of inner-concrete with high intensity is strong, the advantage that shear resistance is strong, and the surface adopting longitudinal spiral reinforcing bar with ribbing and bar dowel with ribbing with design inclination angle to be welded in the thin-wall circular steel pipe of concrete filled and channel-section steel or i iron to contact with concrete, diagonal reinforcement frame welding with ribbing is between the thin-wall circular steel pipe of concrete filled, being increased substantially very much of bridge pier anti-collision hit intensity after composite design, can be many-sided, crashworthiness is provided to cut intensity at many levels, very high impact resistant capability is had than the reinforced concrete bridge pier conventionally designed.
The beneficial effects of the utility model:
(1) adopt channel-section steel or i iron to be shaped steel, draw materials easily, construct convenient;
(2) adopt the thin-wall circular steel pipe of concrete filled, make easily, construction is simple;
(3) the longitudinal spiral reinforcing bar with ribbing with design inclination angle and bar dowel with ribbing is adopted, and diagonal reinforcement skeleton with ribbing, simple structure, easy construction, had both added the adhesion stress between steel and concrete, had also had anti-shearing functions.
(4) this combined type bridge pier structure is uncomplicated, and construction makes easily, and technique is simple, material therefor environmental protection, non-environmental-pollution is a kind of technical, combined type reinforced concrete bridge pier that economic performance is high, can be used for rectangular pier or circular pier, impact resistant capability is strong, adapts to face width.
Accompanying drawing explanation
Fig. 1 is longitudinal sectional drawing of the present utility model;
Fig. 2 is the sectional view in 1-1 face in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, 2, the steel concrete compound bridge pier that impact resistance is strong, comprises reinforced concrete knoll body 8, longitudinal reinforcement 1, longitudinal spiral reinforcing bar 3 with ribbing, bar dowel with ribbing 5, channel-section steel or i iron 4, thin-wall circular steel pipe 2, concrete filled 6 and diagonal reinforcement skeleton 7 with ribbing.Described thin-wall circular steel pipe 2 and channel-section steel or i iron 4, the height in bridge pier is determined according to design, must higher than the above certain altitude of the center of gravity of impacting body (determining according to design); The necessary dense packing effect of described concrete filled 6 in Steel Thin-Wall pipe 2, and is high-strength concrete, and its intensity should adopt more than C50-C60; The described longitudinal spiral reinforcing bar 3 with ribbing with inclination angle should be welded on the surface of thin-wall circular steel pipe 2 according to the angle of design and spacing, bar dowel 5 with ribbing should be welded on the surface of channel-section steel or i iron 4 according to the angle of design and spacing.Described thin-wall circular steel pipe 2 and channel-section steel or i iron 4 need be welded as a whole; Oblique cage of reinforcement 7 with ribbing is welded between thin-wall circular steel pipe 2 and is formed.
First the utility model by the channel-section steel of design alternative corresponding size or i iron model (also can processing and fabricating), selects the thin-wall circular steel pipe of respective model; Again by bar dowel with ribbing pre-designed in its surface soldered and longitudinal spiral reinforcing bar with ribbing, they are inserted in the cushion cap concrete blinding of concrete pier, and meet certain insertion depth, ensure that the anchoring in concrete bearing platform is reliable, again they are totally welded together, finally oblique cage of reinforcement with ribbing is welded between thin-wall circular steel pipe.When building bridge pier concrete, first high-strength concrete is built in thin-wall circular steel pipe, and strengthen vibrating, then build ordinary reinforced concrete bridge pier main body, the steel concrete compound bridge pier that a kind of impact resistance is strong can be formed.
It should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.
Claims (1)
1. the steel concrete compound bridge pier that an impact resistance is strong, it is characterized in that: comprise reinforced concrete knoll body, longitudinal reinforcement, longitudinal spiral reinforcing bar with ribbing, bar dowel with ribbing, channel-section steel or i iron, thin-wall circular steel pipe, concrete filled and diagonal reinforcement skeleton with ribbing, described reinforced concrete knoll body is arranged on cushion cap, two thin-wall circular steel pipes are provided with in reinforced concrete knoll body, concrete filled is provided with in thin-wall circular steel pipe, thin-wall circular steel pipe surrounding is provided with longitudinal reinforcement, two thin-wall circular steel pipes are welded together by channel-section steel or i iron, described longitudinal spiral reinforcing bar with ribbing is with inclination angle and be welded on thin-wall circular steel tube surface, described bar dowel with ribbing is with inclination angle and be welded on channel-section steel or i iron contacts concrete surface, described diagonal reinforcement frame welding with ribbing is between two thin-wall circular steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520149691.1U CN204551239U (en) | 2015-03-16 | 2015-03-16 | The steel concrete compound bridge pier that a kind of impact resistance is strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520149691.1U CN204551239U (en) | 2015-03-16 | 2015-03-16 | The steel concrete compound bridge pier that a kind of impact resistance is strong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204551239U true CN204551239U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520149691.1U Expired - Fee Related CN204551239U (en) | 2015-03-16 | 2015-03-16 | The steel concrete compound bridge pier that a kind of impact resistance is strong |
Country Status (1)
| Country | Link |
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| CN (1) | CN204551239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631308A (en) * | 2015-03-16 | 2015-05-20 | 南京工业大学 | Reinforced concrete composite pier with strong impact resistance |
-
2015
- 2015-03-16 CN CN201520149691.1U patent/CN204551239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631308A (en) * | 2015-03-16 | 2015-05-20 | 南京工业大学 | Reinforced concrete composite pier with strong impact resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20180316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |