CN203923876U - A kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile - Google Patents
A kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile Download PDFInfo
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- CN203923876U CN203923876U CN201420349650.2U CN201420349650U CN203923876U CN 203923876 U CN203923876 U CN 203923876U CN 201420349650 U CN201420349650 U CN 201420349650U CN 203923876 U CN203923876 U CN 203923876U
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- steel pipe
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Abstract
The utility model relates to a kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile, comprise body of a bridge girder and insert the concrete filled steel tube pile body in earth's surface, the cross section of described pile body is flat structure, described pile body comprises interior steel pipe and is set in the outer steel pipe of its periphery, in the cavity forming between described interior steel pipe periphery wall and outer steel pipe internal perisporium, built concrete, and the weak direction of principal axis of pile body and described girder length direction perpendicular.The Integral Abutment seamless bridge of this application concrete filled steel tube flexible pile has improved concrete compressive strength and toughness, the cripling of steel pipe can be avoided or delay to concrete simultaneously, when guaranteeing vertical bearing capacity, making side direction, anti-to push away rigidity as far as possible little, reduce lateral rigidity, can absorb well the horizontal length travel of the body of a bridge, improved anti-seismic performance and the energy-dissipating property of stake, also reduced deadweight, improve fire resistance, simplified construction, there is good economic benefit.
Description
Technical field
The utility model relates to a kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile, belongs to bridge field.
Background technology
Can there is flexible grade for distortion in bridge construction, in order to eliminate distortion to structure influence, shrinkage joint is generally set in structure under the condition of variations in temperature.Steady for Vehicle Driving Cycle, generally stretching device will be set on shrinkage joint, yet stretching device easily occurs under environmental factor destroy or lost efficacy, and has affected the normal use of bridge, has improved maintenance cost.Generally believe that at present adopting the seamless bridge at cancellation shrinkage joint is best solution, and Integral Abutment Bridge is in seamless bridge, to apply maximum class bridge types.
In Integral Abutment Bridge, owing to having cancelled stretching device and bearing, girder and abutment form an integral body, and the dilatation of whole bridge superstructure is mainly born by pile foundation.In order to meet pontic dilatation, improve anti-seismic performance and energy dissipation capacity, usually use flexible pile foundation, with H Section-steel Piles pile foundation, be applied as master abroad, consideration in China due to economic problems, usually use reinforced concrete pile formula abutment Bored Pile of Bridge as a whole, but the horizontal deformation of reinforced concrete pile is starkly lower than piling bar, very easily ftracture and cause the corrosion of reinforcing bar, anti-seismic performance and energy-dissipating property are not good.
There are several deficiencies in concrete pile foundation: one, anti-to push away rigidity large for level, can not absorb well the horizontal distortion that superstructure is produced by variations in temperature and automobile brake; Two, anti-seismic performance and energy-dissipating property are poor; Three, concrete easily ftractures, thereby reinforcing bar is caused to corrosion.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile, ductility is good, economy, easy construction, anti-seismic performance and energy-dissipating property good.
The utility model adopts following scheme to realize: a kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile, comprise body of a bridge girder and insert the concrete filled steel tube pile body in earth's surface, the cross section of described pile body is flat structure, described pile body comprises interior steel pipe and is set in the outer steel pipe of its periphery, in the cavity forming between described interior steel pipe periphery wall and outer steel pipe internal perisporium, built concrete, and the weak direction of principal axis of pile body and described girder length direction perpendicular.
Further, described outer steel pipe and interior steel pipe are nose circle tee section or are elliptic cross-section.
Further, outer steel pipe and interior steel pipe are square-section or outer steel pipe is square-section, and interior steel pipe is elliptic cross-section.
Further, pile cover has been built at the top of described pile body, and described girder is set up on described pile cover and with pile cover and built and be integral.
Further, attachment strap has also been built at the two ends of described girder.
Compared with prior art, the utlity model has following beneficial effect: the Integral Abutment seamless bridge of this application double-layer pipe concrete flexible pile has improved concrete compressive strength and toughness, the cripling of steel pipe can be avoided or delay to concrete simultaneously, when guaranteeing vertical bearing capacity, making side direction, anti-to push away rigidity as far as possible little, reduced lateral rigidity, can absorb well the horizontal length travel of the body of a bridge, improve anti-seismic performance and the energy-dissipating property of stake.Thereby both advantages have been brought into play in concrete and steel pipe acting in conjunction, flat double-layer pipe concrete flexible pile not only has advantages of that general steel tube concrete pile ductility, anti-seismic performance and energy-dissipating property are good, also reduced deadweight, improved fire resistance, simplify construction, there is good economic benefit.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 organigram;
Fig. 2 is the utility model embodiment 1 middle girder and pile cover connection diagram;
Fig. 3 is the utility model embodiment 1 pile body organigram;
Fig. 4 is the utility model embodiment 2 pile body organigrams;
Fig. 5 is the utility model embodiment 3 pile body organigrams;
Fig. 6 is the utility model embodiment 4 pile body organigrams;
Steel pipe, 4-pile body, 5-girder, 6-Integral Abutment, 7-attachment strap, 8-pile cover in the outer steel pipe of number in the figure explanation: 1-, 2-concrete, 3-.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the utility model be described in further detail.
As shown in Fig. 1 ~ 3, a kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile, comprise body of a bridge girder 5 and insert the concrete filled steel tube pile body 4 in earth's surface, the cross section of described pile body 4 is flat structure, described pile body 4 comprises interior steel pipe 3 and is set in the outer steel pipe 1 of its periphery, in the cavity forming between described interior steel pipe 3 periphery walls and outer steel pipe 1 internal perisporium, built concrete 2, interior steel pipe 3 inner chambers are fill concrete not, interior steel pipe 3 thus, outer steel pipe 1 and concrete 2 play a role jointly, improved the ductility of stake, form double-layer pipe concrete flexible pile, and weak direction of principal axis and described girder 5 length directions of pile body 4 are perpendicular, reduced lateral rigidity, can absorb well the horizontal length travel of the body of a bridge, anti-seismic performance and the energy-dissipating property of pile body have been improved, with solid steel pipe concrete ratio, can reduce deadweight, and for friction pile, can improve the anti-vertical bearing capacity of stake, significant economic benefits have been shown.
In the present embodiment, outer steel pipe 1 and interior steel pipe 3 are square-section, and they can, according to realistic bridges length, geological conditions and temperature difference size etc., adopt corresponding section form.Described interior steel pipe 3 and outer steel pipe 1 can adopt common iron, and described concrete 2 can adopt ordinary concrete or self-compacting concrete, and the concrete section centre of form between interior steel pipe 3, outer steel pipe 1 and outer and inner tube overlaps, and concrete 2 is equal with outer and inner tube end face.
In the present embodiment, pile cover has been built at the top of described pile body, and described girder is set up on described pile cover and with pile cover and built and be integral, the effect of common bearing load.
In the present embodiment, the two ends of described girder have also been built attachment strap and have been carried out banketing after platform, form Integral Abutment Bridge.
Construction method of the present utility model: the steel pipe that unit in charge of construction can select different-diameter, stake long and cross section as required with steel pipe a little less than the direction of principal axis situation vertical with the body of a bridge squeeze in soil, formation cavity fetches earth between inside and outside steel pipe, then penetration concrete 2, then in stake top casting, fill with pile cover 8, girder 5 is set up on pile cover 8, finally pile cover 8 and girder 5 are built to formation integral body, and 8 composition Integral Abutment 6 bridges that banket after building attachment strap 7 and carrying out platform.
Fig. 4 illustrates the utility model embodiment 2 pile body structures, and the difference of all the other embodiment 1 is that described outer steel pipe 1 and interior steel pipe 3 are nose circle tee section.
Fig. 5 illustrates the utility model embodiment 3 pile body structures, and the difference of all the other embodiment 1 is that described outer steel pipe 1 and interior steel pipe 3 are oval tee section.
Fig. 6 illustrates the utility model embodiment 4 pile body structures, and the difference of all the other embodiment 1 is that described outer steel pipe 1 is for square-section, and interior steel pipe 3 is elliptic cross-section.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile, it is characterized in that: comprise body of a bridge girder and insert the concrete filled steel tube pile body in earth's surface, the cross section of described pile body is flat structure, described pile body comprises interior steel pipe and is set in the outer steel pipe of its periphery, in the cavity forming between described interior steel pipe periphery wall and outer steel pipe internal perisporium, built concrete, and the weak direction of principal axis of pile body and described girder length direction perpendicular.
2. the Integral Abutment seamless bridge of application double-layer pipe concrete flexible pile according to claim 1, is characterized in that: described outer steel pipe and interior steel pipe are nose circle tee section or are elliptic cross-section.
3. the Integral Abutment seamless bridge of application double-layer pipe concrete flexible pile according to claim 1, is characterized in that: outer steel pipe and interior steel pipe are square-section or outer steel pipe is square-section, and interior steel pipe is elliptic cross-section.
4. the Integral Abutment seamless bridge of application double-layer pipe concrete flexible pile according to claim 1, is characterized in that: pile cover has been built at the top of described pile body, and described girder is set up on described pile cover and with pile cover and built and be integral.
5. the Integral Abutment seamless bridge of application double-layer pipe concrete flexible pile according to claim 1, is characterized in that: attachment strap has also been built at the two ends of described girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420349650.2U CN203923876U (en) | 2014-06-28 | 2014-06-28 | A kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420349650.2U CN203923876U (en) | 2014-06-28 | 2014-06-28 | A kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203923876U true CN203923876U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420349650.2U Expired - Fee Related CN203923876U (en) | 2014-06-28 | 2014-06-28 | A kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile |
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| Country | Link |
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| CN (1) | CN203923876U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060522A (en) * | 2014-06-28 | 2014-09-24 | 福州大学 | Integrated seamless abutment bridge applying double-layer flexible concrete-filled steel tube pile |
| CN104562923A (en) * | 2015-01-17 | 2015-04-29 | 福州大学 | Semi-rigid-joint integral type abutment bridge supported by concrete pile and construction method |
| CN105067212A (en) * | 2015-09-19 | 2015-11-18 | 福州大学 | Pile head fixed end pile-soil dynamic interaction vibration table test device and construction method thereof |
-
2014
- 2014-06-28 CN CN201420349650.2U patent/CN203923876U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060522A (en) * | 2014-06-28 | 2014-09-24 | 福州大学 | Integrated seamless abutment bridge applying double-layer flexible concrete-filled steel tube pile |
| CN104060522B (en) * | 2014-06-28 | 2016-03-09 | 福州大学 | A kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile |
| CN104562923A (en) * | 2015-01-17 | 2015-04-29 | 福州大学 | Semi-rigid-joint integral type abutment bridge supported by concrete pile and construction method |
| CN104562923B (en) * | 2015-01-17 | 2016-06-29 | 福州大学 | A kind of construction method of the semi-rigid joint Integral Abutment Bridge of concrete-pile supporting |
| CN105067212A (en) * | 2015-09-19 | 2015-11-18 | 福州大学 | Pile head fixed end pile-soil dynamic interaction vibration table test device and construction method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170628 |