CN204475148U - The antidetonation bridge pier of the embedding steel core concrete column in local - Google Patents
The antidetonation bridge pier of the embedding steel core concrete column in local Download PDFInfo
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- CN204475148U CN204475148U CN201520007343.0U CN201520007343U CN204475148U CN 204475148 U CN204475148 U CN 204475148U CN 201520007343 U CN201520007343 U CN 201520007343U CN 204475148 U CN204475148 U CN 204475148U
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- bridge pier
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Abstract
The utility model provides the antidetonation bridge pier of the embedding steel core concrete column in a kind of local, belongs to bridge structure design technical field.This antidetonation bridge pier comprises vertical muscle, stirrup, steel pipe, regular tenacity concrete, strong concrete and pier footing.This bridge pier is at the embedding steel core concrete column in the local of reinforced concrete bridge pier, make full use of the good advantage of regular tenacity concrete pier ductility and high strength concrete filled steel tube resistance to compression and shear-carrying capacity is high, ductility is good advantage, improve the shearing resistance of bridge pier, Compressive Bearing Capacity and ductility and energy dissipation capacity, avoid bridge pier generation shear failure and bending conquassation, effectively improve the anti-seismic performance of reinforced concrete bridge pier.This antidetonation bridge pier, only at the embedding steel core concrete column of the stressed maximum subrange of bridge pier, had both reached the object improving bridge pier anti-seismic performance, reached again the object as far as possible reducing bridge pier cost and difficulty of construction.The utility model can be widely used in bridge's design field.
Description
Technical field
The utility model belongs to bridge structure design technical field, relates to a kind of structure design of bridge critical piece, is related specifically to the steel concrete antidetonation bridge pier of the embedding steel core concrete column in a kind of local.
Background technology
Earthquake in the past shows, it is bridge earthquake the most common that the bridge pier of beam bridge occurs to destroy.Bridge pier is the crucial primary structure member of beam bridge, seismic reinforced concrete bridge pier fracture or conquassation will cause integral bridge to collapse, after bridge pier damage, excessive displacement can cause earthquakes such as colliding between Luo Liang, beam, and the major injury of bridge pier and excessive permanent set cannot be repaired after bridge can be made to shake.
Reinforced concrete bridge pier mainly contains two kinds of heavy damage forms: the shear failure that (1) causes due to shear resistance deficiency; (2) due to the bending conquassation (namely core concrete crushes) that ductility deficiency causes, these two kinds of mode of failure belong to the destruction being difficult to repair, and bridge pier can be made to lose vertical bearing capacity, cause bridge to lose its using function, even collapse.Therefore, improving bridge pier anti-seismic performance is improve the key of beam bridge Seismic Resistance And Disaster Reduction ability, and how improving the anti-seismic performances such as bridge pier shear resistance, ductile ability and energy dissipation capacity is then one of key technology of Bridge Earthquake Resistance Design.
Utility model content
The utility model proposes the antidetonation bridge pier of the embedding steel core concrete column in a kind of local, effectively can improve the anti-seismic performance of reinforced concrete bridge pier.Beam bridge, by adopting this antidetonation bridge pier, when meeting bridge earthquake resistance demand, significantly can reduce the shear reinforcement of bridge pier, reduces difficulty of construction, improves Bridge Pier Construction quality and seismic seeurity.
The technical solution of the utility model is:
An antidetonation bridge pier for the embedding steel core concrete column in local, comprises vertical muscle, stirrup, steel pipe, regular tenacity concrete, strong concrete and pier footing.
Pier footing is reinforced concrete structure, can be Extended chemotherapy or pile foundation, also can be the cushion cap that pile foundation is arranged above.
Vertical muscle, stirrup and regular tenacity concrete form the main part of bridge pier, and the cross section of bridge pier is circular.Vertical muscle and stirrup are arranged in regular tenacity concrete.Vertical muscle is vertically placed, and the distance at distance bridge pier edge meets the protective layer thickness requirement that design specifications specify, indulges muscle lower end and is embedded in pier footing.Stirrup is annular, is surrounded on outside vertical muscle, vertically arranges along vertical muscle spiral with a determining deviation.
Diameter of steel tube is 1/3-1/2 times of bridge pier diameter, and steel pipe length is not less than 3 times of bridge pier diameter, and thickness of steel pipe is 1/40 times of diameter of steel tube.Bottom 1/3 length of steel pipe is embedded in pier footing, and top remains 2/3 length and is embedded in bridge pier, steel pipe and bridge pier center superposition.Fill up strong concrete in steel pipe, form steel core concrete column.
Effect of the present utility model and benefit are: the concrete of steel pipe periphery adopts the regular tenacity concrete (C30 or C40) that bridge pier is conventional, utilizes its ductility to be better than the advantage of high-strength concrete; And in steel pipe, adopt high-strength concrete (C50 and more than), utilize high strength concrete filled steel tube resistance to compression and shear-carrying capacity is high, ductility is good advantage, thus the shearing resistance of bridge pier, Compressive Bearing Capacity and ductility and energy dissipation capacity can be increased substantially, avoid bridge pier generation shear failure and bending conquassation, meet the antidetonation needs of bridge opposing rarely occurred earthquake, improve the rear recoverability of the ability of bridge opposing aftershock, emergency disaster relief function and shake, significantly can reduce the earthquake loss because bridge collapse causes thus, there is significant economic and social benefit.In addition, this antidetonation bridge pier, only at the embedding steel core concrete column of the stressed maximum subrange of bridge pier, had both reached the object improving bridge pier anti-seismic performance, reached again the object as far as possible reducing bridge pier cost and difficulty of construction.
Accompanying drawing explanation
Fig. 1 is bridge pier elevation.
Fig. 2 is the pier section figure of not embedding steel pipe.
Fig. 3 is the pier section figure of embedding steel pipe.
In figure: 1 regular tenacity concrete; 2 stirrups; 3 vertical muscle; 4 steel pipes; 5 strong concretes; 6 bases.
Detailed description of the invention
Detailed description of the invention of the present utility model is described in detail below in conjunction with technical scheme and accompanying drawing.
The reinforced concrete bridge pier of bridge is equipped with reinforced concrete foundation 6, and this basis generally adopts the cushion cap in the pile foundation of rectangle Extended chemotherapy, circular cross-section or pile foundation.Before the concreting on basis 6, a part of length of vertical muscle 3 and steel pipe 4 is embedded in below basic end face, then waters the concrete of underpin 6.
After the concrete on basis 6 reaches design strength, in steel pipe 4, fill up strong concrete 5.
Outside vertical muscle 3, lay stirrup 2, stirrup 2 utilizes steel wire to wrap up according to certain spacing and is positioned on vertical muscle 3.
In stirrup arranged outside template, template internal diameter is identical with bridge pier diameter.Regular tenacity concrete 1 is built in template.
After concrete 1 intensity reaches design strength, namely this structure can be used as the stressed use of bridge pier.
Besides these examples, all make within thought of the present utility model and principle amendment, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (1)
1. an antidetonation bridge pier for the embedding steel core concrete column in local, is characterized in that, this antidetonation bridge pier comprises vertical muscle, stirrup, steel pipe, regular tenacity concrete, strong concrete and pier footing;
Pier footing is reinforced concrete structure;
Vertical muscle, stirrup and regular tenacity concrete form the main part of bridge pier, and the cross section of bridge pier is circular; Vertical muscle and stirrup are arranged in regular tenacity concrete, and vertical muscle is vertically placed, and the distance at distance bridge pier edge meets the protective layer thickness requirement that design specifications specify, indulges muscle lower end and is placed in pier footing; Stirrup is annular, is surrounded on outside vertical muscle, vertically arranges along vertical muscle spiral with a determining deviation;
Diameter of steel tube is 1/3-1/2 times of bridge pier diameter, and steel pipe length is not less than 3 times of bridge pier diameter, and thickness of steel pipe is 1/40 times of diameter of steel tube; Bottom 1/3 length of steel pipe is embedded in pier footing, and top remains 2/3 length and is embedded in bridge pier, steel pipe and bridge pier center superposition; Fill up strong concrete in steel pipe, form steel core concrete column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007343.0U CN204475148U (en) | 2015-01-06 | 2015-01-06 | The antidetonation bridge pier of the embedding steel core concrete column in local |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007343.0U CN204475148U (en) | 2015-01-06 | 2015-01-06 | The antidetonation bridge pier of the embedding steel core concrete column in local |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204475148U true CN204475148U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007343.0U Expired - Fee Related CN204475148U (en) | 2015-01-06 | 2015-01-06 | The antidetonation bridge pier of the embedding steel core concrete column in local |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204475148U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562922A (en) * | 2015-01-06 | 2015-04-29 | 大连理工大学 | Locally-embedded steel pipe concrete column type aseismatic bridge pier |
| CN105908621A (en) * | 2016-06-29 | 2016-08-31 | 北京工业大学 | Damage-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier and manufacturing method thereof |
| CN108797322A (en) * | 2018-08-15 | 2018-11-13 | 西安科技大学 | A kind of Anti-seismic beam bridge bridge pier |
| CN108894100A (en) * | 2018-08-15 | 2018-11-27 | 西安科技大学 | A kind of the antidetonation bridge pier and its construction method of rigid frame bridge |
| CN108978448A (en) * | 2018-08-15 | 2018-12-11 | 西安科技大学 | A kind of construction method of Anti-seismic beam bridge bridge pier |
| CN110924291A (en) * | 2019-11-19 | 2020-03-27 | 东北大学 | Prefabricated stiffened concrete-filled steel tube and reinforced concrete assembled pier and construction process |
| CN108570923B (en) * | 2018-05-06 | 2020-11-27 | 北京工业大学 | Reinforced concrete pier structure capable of being quickly repaired after earthquake |
-
2015
- 2015-01-06 CN CN201520007343.0U patent/CN204475148U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562922A (en) * | 2015-01-06 | 2015-04-29 | 大连理工大学 | Locally-embedded steel pipe concrete column type aseismatic bridge pier |
| CN105908621A (en) * | 2016-06-29 | 2016-08-31 | 北京工业大学 | Damage-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier and manufacturing method thereof |
| CN105908621B (en) * | 2016-06-29 | 2017-12-22 | 北京工业大学 | It is a kind of to damage controllable Self-resetting precast segment steel-pipe assembly concrete pier and the practice |
| CN108570923B (en) * | 2018-05-06 | 2020-11-27 | 北京工业大学 | Reinforced concrete pier structure capable of being quickly repaired after earthquake |
| CN108797322A (en) * | 2018-08-15 | 2018-11-13 | 西安科技大学 | A kind of Anti-seismic beam bridge bridge pier |
| CN108894100A (en) * | 2018-08-15 | 2018-11-27 | 西安科技大学 | A kind of the antidetonation bridge pier and its construction method of rigid frame bridge |
| CN108978448A (en) * | 2018-08-15 | 2018-12-11 | 西安科技大学 | A kind of construction method of Anti-seismic beam bridge bridge pier |
| CN108797322B (en) * | 2018-08-15 | 2020-01-21 | 西安科技大学 | Anti-seismic beam bridge pier |
| CN110924291A (en) * | 2019-11-19 | 2020-03-27 | 东北大学 | Prefabricated stiffened concrete-filled steel tube and reinforced concrete assembled pier and construction process |
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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: 20150715 Termination date: 20170106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |