CN102704388A - Anti-seismic and anti-flood semi-integral abutment seamless bridge and construction method thereof - Google Patents
Anti-seismic and anti-flood semi-integral abutment seamless bridge and construction method thereof Download PDFInfo
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- CN102704388A CN102704388A CN2012102017008A CN201210201700A CN102704388A CN 102704388 A CN102704388 A CN 102704388A CN 2012102017008 A CN2012102017008 A CN 2012102017008A CN 201210201700 A CN201210201700 A CN 201210201700A CN 102704388 A CN102704388 A CN 102704388A
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Abstract
The invention relates to an anti-seismic and anti-flood semi-integral abutment seamless bridge and a construction method thereof. The anti-seismic and anti-flood semi-integral abutment seamless bridge consists of a semi-integral abutment bridge, and a micro pile energy dissipation system and a deck system which are positioned at two ends of the bridge; the micro pile energy dissipation system comprises a micro pile 7, a sleeper beam 3 positioned on the top of the micro pile, a deck extension connecting plate 2 and a lapping plate 4; and the semi-integral abutment bridge and the micro pile energy dissipation system are connected into a whole through the connecting plate 2 and form the anti-seismic and anti-flood semi-integral abutment seamless bridge. The micro pile energy dissipation system is arranged at the end of the novel semi-integral abutment seamless bridge, so that the anti-seismic performance and the anti-flood capability of the bridge are effectively improved; and by transition of a micro pile vertical bearing system arranged below the sleeper beam and the connecting plate and the lapping plate between bearers with different rigidities, the bridge can really realize obvious settling prevention, harmful crack prevention and zero maintenance.
Description
Technical field
The present invention relates to a kind of antidetonation flood fighting type semi-monolithic seamless bridge of formula abutment and job practices thereof; Be suitable for China earthquake protection district; Because it not only can adopt pile foundation (to newly-built or old bridge), and can eliminate the sedimentation that the platform rear region causes by horizontal cyclic temperature deformation and road surface load and have stronger shock resistance.
Background technology
China is the country of earthquake more than, and seismic activity is frequent, and earthquake magnitude is strong.Seismic activity mainly is distributed in areas such as southwest, northwest, south China and the Taiwan Straits; Simultaneously, China's most of areas is in flood threat district.These local bridges distribute more again; So the new bridge design and the old bridge transformation of antidetonation type, high-durability and few maintenance workload are shouldered heavy responsibilities, select bridge construction system rational, science very crucial.China's most of areas is the earthquake protection district; Bridge in this road lifeline engineering that just requires to design and transform; When accomplishing seamless process, have the ability of opposing extreme environment load action again, thereby make bridge have good workability, economy, durability and safety.The seamless bridge of antidetonation flood fighting type semi-monolithic formula of this band mini pile power consumption system is not have the shrinkage joint bridge through semi-monolithic formula abutment good, integral seamless design rationally, can satisfy above requirement simultaneously, thereby also have good application prospects.
Summary of the invention
The objective of the invention is to many earthquake protection district and/or the flooding districts of China; A kind of antidetonation flood fighting type semi-monolithic seamless bridge of formula abutment and job practices thereof are proposed; Through end of the bridge mini pile power consumption system is set and improves its combination property at conventional semi-monolithic formula abutment bridge, thus the seamless bridge of Antiseismic flood-resistant type semi-monolithic formula abutment that is able to meet design requirement.
Technical program of the present invention lies in: the seamless bridge of a kind of antidetonation flood fighting type semi-monolithic formula abutment; It is characterized in that: the seamless bridge of this antidetonation flood fighting type semi-monolithic formula abutment is made up of semi-monolithic formula abutment bridge, the mini pile power consumption system and the bridge deck that are positioned at the end of the bridge two ends; Said mini pile power consumption system comprises mini pile 7, is positioned at the sleeper beam 3 at mini pile top, bridge floor extends junction plate 2 and attachment strap 4; Described semi-monolithic formula abutment bridge and mini pile power consumption system are linked to be an integral body through junction plate 2, form the seamless bridge of this antidetonation flood fighting type semi-monolithic formula abutment.
Above-mentioned semi-monolithic formula abutment bridge comprises the continuous girder of structure 1, semi-monolithic formula abutment 5, conventional bearing 8 and is positioned at the concrete pile foundation 6 under the abutment.
Another technical scheme of the present invention is: the job practices of the seamless bridge of a kind of antidetonation flood fighting type semi-monolithic formula abutment, it is characterized in that, and carry out according to the following steps:
I, excavation basis:, also will extend junction plate (2) and transition slab at bridge head (4) excavation basis for bridge floor except being bridge main body excavation basis;
II, bridge main body construction: accomplish the construction of pile foundation (6) and semi-monolithic formula abutment (5), conventional bearing (8) is installed; The erecting girder need be reserved when prefabricated girder and is used for the reinforcing bar that is connected with junction plate (2);
III, completion mini pile group (7) boring: mini pile is 16m by length, forms by the steel pipe that 8mm is thick, and bridge floor extension board (2) is connected on mini pile group (7) pile cover, and the whole connection of same transition slab at bridge head (4);
IV, laying bridge floor extend junction plate (2) and transition slab at bridge head (4) and sleeper beam (3) reinforcing bar, and concreting makes bridge floor extension board (2), sleeper beam (3) and transition slab at bridge head (4) be linked to be an integral body;
V, lay bridge deck pavement and accomplish other thin portion construction.
Owing to take above-mentioned improvement form of structure, the present invention has following good characteristics:
1. the seamless bridge of this novel semi-monolithic formula abutment has improved the anti-seismic performance and the anti-flood capacity of bridge effectively through mini pile power consumption system is set at end of the bridge;
2. this novel seamless bridge has been integrated the advantage of semi-monolithic formula abutment and monolithic abutment bridge, has really realized road and bridge integral seamless connection, is particularly suitable for the national conditions of China.This new bridge type can be widely used in medium and small new bridge construction and old bridge strengthening reconstructions of the striding the footpath most of earthquake zone of China, that face is wide in a large number.The vertical bearing system of mini pile and the junction plate between the different-stiffness support and the transition of attachment strap that this novel seamless bridge is divided into through sleeper beam can make bridge really accomplish not have obvious sedimentation, not have harmful crack and zero dimension is protected.
Description of drawings
Fig. 1 is the seamless bridge construction sketch map of antidetonation flood fighting type semi-monolithic formula abutment among the embodiment.
Among the figure: 1 girder, 2 junction plates, 3 sleeper beams, 4 attachment straps, 5 semi-monolithic formula abutments, 6 concrete pile foundations, 7 mini piles, 8 conventional bearing 9 bridge decks.
The specific embodiment
Below in conjunction with accompanying drawing and an embodiment the present invention is further specified, separate application of the present invention with the assistant, but protection scope of the present invention is not limited to this instantiation.
As shown in Figure 1, the seamless bridge of this antidetonation flood fighting type semi-monolithic formula abutment is made up of semi-monolithic formula abutment bridge, the mini pile power consumption system and the bridge deck 9 that are positioned at the end of the bridge two ends.Mini pile power consumption system comprises mini pile 7, is positioned at the sleeper beam 3 at mini pile 7 tops, bridge floor extends junction plate 2 and attachment strap 4; Described semi-monolithic formula abutment bridge and mini pile power consumption system are linked to be an integral body through junction plate 2, form the seamless bridge of this antidetonation flood fighting type semi-monolithic formula abutment.
Above-mentioned semi-monolithic formula abutment bridge comprises the continuous girder of structure 1, semi-monolithic formula abutment 5, conventional bearing 8 and is positioned at the concrete pile foundation 6 under the abutment
When earthquake took place, the mini pile dissipative system can be received a large amount of seismic forcess, partly directly was diffused into seismic energy in the soil of mini pile 7 perimembranous, had reduced the effect of earthquake to the body of a bridge so widely.And normally brisance is directly born by bridge.Simultaneously, it is in aggregates that the continuous girder 1 of the structure of this new bridge type and bridge deck 9 are connected with junction plate 2, sleeper beam 3 and attachment strap 4 effectively, realizes that really road and bridge are integrated, and can resist horizontal flood impact force effectively.
The job practices of the seamless bridge of above-mentioned antidetonation flood fighting type semi-monolithic formula abutment, carry out according to the following steps:
I, excavation basis:, also will extend junction plate (2) and transition slab at bridge head (4) excavation basis for bridge floor except being bridge main body excavation basis;
II, bridge main body construction: accomplish the construction of pile foundation (6) and semi-monolithic formula abutment (5), conventional bearing (8) is installed; The erecting girder need be reserved when prefabricated girder and is used for the reinforcing bar that is connected with junction plate (2);
III, completion mini pile group (7) boring: mini pile is 16m by length, forms by the steel pipe that 8mm is thick, and bridge floor extension board (2) is connected on mini pile group (7) pile cover, and the whole connection of same transition slab at bridge head (4);
IV, laying bridge floor extend junction plate (2) and transition slab at bridge head (4) and sleeper beam (3) reinforcing bar, and concreting makes bridge floor extension board (2), sleeper beam (3) and transition slab at bridge head (4) be linked to be an integral body;
V, lay bridge deck pavement and accomplish other thin portion construction.
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. seamless bridge of antidetonation flood fighting type semi-monolithic formula abutment; It is characterized in that: the seamless bridge of this antidetonation flood fighting type semi-monolithic formula abutment is made up of semi-monolithic formula abutment bridge, the mini pile power consumption system and the bridge deck (9) that are positioned at the end of the bridge two ends; Said mini pile power consumption system comprises mini pile (7), is positioned at the sleeper beam (3) at mini pile top, bridge floor extends junction plate (2) and attachment strap (4); Described semi-monolithic formula abutment bridge and mini pile power consumption system are linked to be an integral body through junction plate (2), form the seamless bridge of this antidetonation flood fighting type semi-monolithic formula abutment.
2. the seamless bridge of antidetonation flood fighting type semi-monolithic formula abutment according to claim 1 is characterized in that: said semi-monolithic formula abutment bridge comprises the continuous girder of structure (1), semi-monolithic formula abutment (5), conventional bearing (8) and is positioned at the concrete pile foundation (6) under the abutment.
3. the job practices of the seamless bridge of antidetonation flood fighting type semi-monolithic formula abutment is characterized in that, carries out according to the following steps:
I, excavation basis:, also will extend junction plate (2) and transition slab at bridge head (4) excavation basis for bridge floor except being bridge main body excavation basis;
II, bridge main body construction: accomplish the construction of pile foundation (6) and semi-monolithic formula abutment (5), conventional bearing (8) is installed; The erecting girder need be reserved when prefabricated girder and is used for the reinforcing bar that is connected with junction plate (2);
III, completion mini pile group (7) boring: the construction mini pile, and bridge floor extension board (2) is connected on mini pile group (7) pile cover, and the whole connection of same transition slab at bridge head (4);
IV, laying bridge floor extend junction plate (2) and transition slab at bridge head (4) and sleeper beam (3) reinforcing bar, and concreting makes bridge floor extension board (2), sleeper beam (3) and transition slab at bridge head (4) be linked to be an integral body;
V, lay bridge deck pavement and accomplish other thin portion construction.
4. the job practices of the seamless bridge of antidetonation flood fighting type semi-monolithic formula abutment according to claim 3, it is characterized in that: said mini pile is 16m by length, is made up of the steel pipe that 8mm is thick.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122605A (en) * | 2013-03-24 | 2013-05-29 | 宁波市镇海怡福莱文化创意有限公司 | Bridge end transition slab |
| 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 |
| CN104612142A (en) * | 2015-02-05 | 2015-05-13 | 福州大学 | Integral abutment bridge structure based on composite flexible piles and construction method thereof |
| CN110761163A (en) * | 2019-11-29 | 2020-02-07 | 福州大学 | Rapid construction structure of integral bridge and construction method thereof |
| CN110952462A (en) * | 2019-12-31 | 2020-04-03 | 福州大学 | Shock absorption structure suitable for novel abutment rigid frame bridge and construction method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122605A (en) * | 2013-03-24 | 2013-05-29 | 宁波市镇海怡福莱文化创意有限公司 | Bridge end transition slab |
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| 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 |
| CN104612142A (en) * | 2015-02-05 | 2015-05-13 | 福州大学 | Integral abutment bridge structure based on composite flexible piles and construction method thereof |
| CN110761163A (en) * | 2019-11-29 | 2020-02-07 | 福州大学 | Rapid construction structure of integral bridge and construction method thereof |
| CN110761163B (en) * | 2019-11-29 | 2024-05-31 | 福州大学 | Rapid construction structure of integral bridge and construction method thereof |
| CN110952462A (en) * | 2019-12-31 | 2020-04-03 | 福州大学 | Shock absorption structure suitable for novel abutment rigid frame bridge and construction method thereof |
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Application publication date: 20121003 |