CN104060522B - A kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile - Google Patents
A kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile Download PDFInfo
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- CN104060522B CN104060522B CN201410297017.8A CN201410297017A CN104060522B CN 104060522 B CN104060522 B CN 104060522B CN 201410297017 A CN201410297017 A CN 201410297017A CN 104060522 B CN104060522 B CN 104060522B
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Abstract
The present invention relates to a kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile, the concrete filled steel tube pile body comprising body of a bridge girder and insert in earth's surface, the cross section of described pile body is squashed structure, described pile body comprises interior steel pipe and is set in the outer steel pipe of its periphery, built concrete in the cavity formed between described interior steel pipe periphery wall and outer steel pipe internal perisporium, 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 improves concrete compressive strength and toughness, the cripling of steel pipe can be avoided or delay to concrete simultaneously, make side direction thrust stiffness as far as possible little while ensureing vertical bearing capacity, reduce lateral rigidity, the horizontal length travel of the body of a bridge can be absorbed well, improve anti-seismic performance and the energy-dissipating property of stake, also reduce deadweight, improve fire resistance, simplify construction, there is good economic benefit.
Description
Technical field
The present invention relates to a kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile, belong to bridge field.
Background technology
Can be there is flexible grade for distortion in bridge construction, in order to eliminate distortion to structure influence, generally arrange shrinkage joint in the structure under the condition of variations in temperature.In order to vehicle smooth ride, generally stretching device will be set on shrinkage joint, but stretching device easily occurs under environmental factor to destroy or lost efficacy, and have impact on the normal use of bridge, improves maintenance cost.Generally believe at present and adopt the seamless bridge cancelling shrinkage joint to be best solution, and Integral Abutment Bridge applies maximum class bridge types in seamless bridge.
In Integral Abutment Bridge, owing to eliminating stretching device and bearing, girder and abutment form an entirety, and the dilatation of overall bridge superstructure is born primarily of pile foundation.In order to meet pontic dilatation, improve anti-seismic performance and energy dissipation capacity, usually use flexible pile foundation, master is applied as abroad with H profile steel stake pile foundation, 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 is several deficiency in concrete pile foundation: one, horizontal thrust stiffness is large, can not absorb the horizontal distortion that superstructure is produced by variations in temperature and automobile brake well; Two, anti-seismic performance and energy-dissipating property poor; Three, concrete easily ftractures, thus causes corrosion to reinforcing bar.
Summary of the invention
In view of this, the object of this invention is to provide a kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile, ductility be good, economy, easy construction, anti-seismic performance and energy-dissipating property good.
The present invention adopts following scheme to realize: a kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile, the concrete filled steel tube pile body comprising body of a bridge girder and insert in earth's surface, the cross section of described pile body is squashed structure, described pile body comprises interior steel pipe and is set in the outer steel pipe of its periphery, built concrete in the cavity formed between described interior steel pipe periphery wall and outer steel pipe internal perisporium, 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 circular and cross-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 to be set up on described pile cover and built integral with pile cover.
Further, attachment strap has also been built in the two ends of described girder.
Compared with prior art, the present invention has following beneficial effect: the Integral Abutment seamless bridge of this application double-layer pipe concrete flexible pile improves concrete compressive strength and toughness, the cripling of steel pipe can be avoided or delay to concrete simultaneously, make side direction thrust stiffness as far as possible little while ensureing vertical bearing capacity, reduce lateral rigidity, the horizontal length travel of the body of a bridge can be absorbed well, improve anti-seismic performance and the energy-dissipating property of stake.Concrete and steel pipe acting in conjunction thus played both advantage, flat double-layer pipe concrete flexible pile not only has the good advantage of general steel tube concrete pile ductility, anti-seismic performance and energy-dissipating property, also reduce deadweight, improve fire resistance, simplify construction, there is good economic benefit.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 organigram;
Fig. 2 is the embodiment of the present invention 1 middle girder and pile cover connection diagram;
Fig. 3 is the embodiment of the present invention 1 pile body organigram;
Fig. 4 is the embodiment of the present invention 2 pile body organigram;
Fig. 5 is the embodiment of the present invention 3 pile body organigram;
Fig. 6 is the embodiment of the present invention 4 pile body organigram;
Number in the figure illustrates: steel pipe, 4-pile body, 5-girder, 6-Integral Abutment, 7-attachment strap, 8-pile cover in the outer steel pipe of 1-, 2-concrete, 3-.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, below by specific embodiment and relevant drawings, the present invention will be described in further detail.
As shown in Fig. 1 ~ 3, a kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile, the concrete filled steel tube pile body 4 comprising body of a bridge girder 5 and insert in earth's surface, the cross section of described pile body 4 is squashed structure, described pile body 4 comprises interior steel pipe 3 and is set in the outer steel pipe 1 of its periphery, concrete 2 has been built in the cavity formed between described interior steel pipe 3 periphery wall and outer steel pipe 1 internal perisporium, interior steel pipe 3 inner chamber not fill concrete, interior steel pipe 3 thus, outer steel pipe 1 and concrete 2 play a role jointly, improve the ductility of stake, form double-layer pipe concrete flexible pile, and the weak direction of principal axis of pile body 4 and described girder 5 length direction perpendicular, reduce lateral rigidity, the horizontal length travel of the body of a bridge can be absorbed well, improve anti-seismic performance and the energy-dissipating property of pile body, with single solid steel pipe concrete ratio, deadweight can be reduced, and for friction pile, the anti-vertical bearing capacity of stake can be improved, illustrate significant economic benefits.
In the present embodiment, outer steel pipe 1 and interior steel pipe 3 are square-section, and they according to realistic bridges length, geological conditions and temperature difference size etc., can 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 interior steel pipe 3, the concrete section centre of form between outer steel pipe 1 and outer and inner tube overlap, 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 to be set up on described pile cover and built integral with pile cover, 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 banketed after carrying out platform, composition Integral Abutment Bridge.
Construction method of the present invention: unit in charge of construction can select different-diameter as required, stake is long squeezes in soil with the steel pipe in cross section with the situation that the weak direction of principal axis of steel pipe is vertical with the body of a bridge, fetch earth formation cavity between inside and outside steel pipe, then penetration concrete 2, then pile cover 8 is filled with in stake top casting, girder 5 is set up on pile cover 8, finally pile cover 8 and girder 5 are built and form entirety, and build attachment strap 7 and 8 composition Integral Abutment 6 bridges that banket after carrying out platform.
Fig. 4 illustrates that the embodiment of the present invention 2 pile body constructs, and the difference of all the other embodiments 1 is that described outer steel pipe 1 and interior steel pipe 3 are circular and cross-section.
Fig. 5 illustrates that the embodiment of the present invention 3 pile body constructs, and the difference of all the other embodiments 1 is that described outer steel pipe 1 and interior steel pipe 3 are oval tee section.
Fig. 6 illustrates that the embodiment of the present invention 4 pile body constructs, and the difference of all the other embodiments 1 is that described outer steel pipe 1 is square-section, and interior steel pipe 3 is elliptic cross-section.
Above-listed preferred embodiment; the object, technical solutions and advantages of the present invention are further described; be understood that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. apply the Integral Abutment seamless bridge of double-layer pipe concrete flexible pile for one kind, it is characterized in that: the concrete filled steel tube pile body comprising body of a bridge girder and insert in earth's surface, the cross section of described pile body is squashed structure, described pile body comprises interior steel pipe and is set in the outer steel pipe of its periphery, concrete has been built in the cavity formed between described interior steel pipe periphery wall and outer steel pipe internal perisporium, interior steel pipe, the concrete section centre of form between outer steel pipe and outer and inner tube overlap, and concrete is equal with outer and inner tube end face; Described outer steel pipe and interior steel pipe are circular and cross-section or are elliptic cross-section; And the weak direction of principal axis of pile body and described girder length direction perpendicular; Pile cover has been built at the top of described pile body, and described girder to be set up on described pile cover and built integral with pile cover; Attachment strap has also been built in the two ends of described girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410297017.8A CN104060522B (en) | 2014-06-28 | 2014-06-28 | A kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410297017.8A CN104060522B (en) | 2014-06-28 | 2014-06-28 | A kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile |
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| Publication Number | Publication Date |
|---|---|
| CN104060522A CN104060522A (en) | 2014-09-24 |
| CN104060522B true CN104060522B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410297017.8A Expired - Fee Related CN104060522B (en) | 2014-06-28 | 2014-06-28 | A kind of Integral Abutment seamless bridge applying double-layer pipe concrete flexible pile |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452578B (en) * | 2014-12-17 | 2016-08-17 | 福州大学 | Quake-proof type Integral Abutment Bridge and the construction method thereof of energy-absorbing material is buried on stake top underground |
| CN104594185B (en) * | 2014-12-17 | 2016-09-07 | 福州大学 | Multiple location buries semi-integral bridge abutment bridge and the construction method thereof of energy-absorbing material underground |
| CN104562921B (en) * | 2015-01-17 | 2016-05-04 | 福州大学 | A kind of construction method that connects the Integral Abutment Bridge of structure with dog bone shape |
| CN104631436B (en) * | 2015-02-05 | 2016-05-04 | 福州大学 | Improve the method for Integral Abutment supporting pile stress performance with H type concrete-pile |
| CN109470566A (en) * | 2018-12-17 | 2019-03-15 | 北京石油化工学院 | A kind of augmentor and research method for studying reinforcing bar degree of corrosion |
| CN109577307A (en) * | 2019-01-10 | 2019-04-05 | 上海市市政规划设计研究院有限公司 | Combination of rigidity and flexibility stake and its construction method |
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| JPH11190021A (en) * | 1997-10-24 | 1999-07-13 | Housing Tamura:Kk | Joint construction for pile |
| CN201915401U (en) * | 2010-12-30 | 2011-08-03 | 天津市银龙预应力钢材集团有限公司 | Prestressed steel pipe-concrete pipe pile |
| CN202117165U (en) * | 2011-04-06 | 2012-01-18 | 南京工业大学 | Fiber composite material cylinder restrained steel pipe concrete composite structure |
| CN102677657A (en) * | 2011-03-11 | 2012-09-19 | 常雷 | Construction method of row cast thin-walled concrete compound pile wall and special hole forming device thereof |
| CN102704388A (en) * | 2012-06-19 | 2012-10-03 | 福州大学 | Anti-seismic and anti-flood semi-integral abutment seamless bridge and construction method thereof |
| CN104060607A (en) * | 2014-05-29 | 2014-09-24 | 国鼎(南通)管桩有限公司 | Prestress steel pipe pile and production method of prestress steel pipe pile |
| CN203923876U (en) * | 2014-06-28 | 2014-11-05 | 福州大学 | A kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile |
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2014
- 2014-06-28 CN CN201410297017.8A patent/CN104060522B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11190021A (en) * | 1997-10-24 | 1999-07-13 | Housing Tamura:Kk | Joint construction for pile |
| CN201915401U (en) * | 2010-12-30 | 2011-08-03 | 天津市银龙预应力钢材集团有限公司 | Prestressed steel pipe-concrete pipe pile |
| CN102677657A (en) * | 2011-03-11 | 2012-09-19 | 常雷 | Construction method of row cast thin-walled concrete compound pile wall and special hole forming device thereof |
| CN202117165U (en) * | 2011-04-06 | 2012-01-18 | 南京工业大学 | Fiber composite material cylinder restrained steel pipe concrete composite structure |
| CN102704388A (en) * | 2012-06-19 | 2012-10-03 | 福州大学 | Anti-seismic and anti-flood semi-integral abutment seamless bridge and construction method thereof |
| CN104060607A (en) * | 2014-05-29 | 2014-09-24 | 国鼎(南通)管桩有限公司 | Prestress steel pipe pile and production method of prestress steel pipe pile |
| CN203923876U (en) * | 2014-06-28 | 2014-11-05 | 福州大学 | A kind of Integral Abutment seamless bridge of applying double-layer pipe concrete flexible pile |
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| CN104060522A (en) | 2014-09-24 |
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Granted publication date: 20160309 Termination date: 20190628 |