CN104790287A - Small-radius curved rigid frame system bridge - Google Patents
Small-radius curved rigid frame system bridge Download PDFInfo
- Publication number
- CN104790287A CN104790287A CN201510231389.5A CN201510231389A CN104790287A CN 104790287 A CN104790287 A CN 104790287A CN 201510231389 A CN201510231389 A CN 201510231389A CN 104790287 A CN104790287 A CN 104790287A
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- China
- Prior art keywords
- pier
- bridge
- steel
- consolidation
- girder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 238000007596 consolidation process Methods 0.000 claims description 33
- 239000011384 asphalt concrete Substances 0.000 claims description 9
- 238000004078 waterproofing Methods 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract 4
- 238000007711 solidification Methods 0.000 abstract 4
- 238000010276 construction Methods 0.000 description 11
- 230000006872 improvement Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D1/00—Bridges in general
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a small-radius curved rigid frame system bridge which comprises a supporting assembly and a bridge deck assembly. The bridge deck assembly is installed above the supporting assembly and is composed of steel box girders. The supporting assembly comprises one or more pier beam solidification abutments and one or more non-solidification abutments, the pier beam solidification abutments are concrete filled steel tube single column piers, and the non-solidification abutments are each provided with a movable support. The small-radius curved rigid frame system bridge has the advantages of being simple in structure, easy and convenient to construct, capable of improving the reliability and safety of bridge structures, and the like.
Description
Technical field
The present invention is mainly concerned with bridge construction field, refers in particular to a kind of sharp radius curve firm structure system bridge.
Background technology
Less (the radius of city ramp curve bridge radius
m), generally much smaller than the curved bridge radius (radius on speedway or railway
m), Curved bridge with sharp radius is belonged to.City ring road Curved bridge with sharp radius built at present, main adopts multispan continuously or the structural shape of single span freely-supported curved box girder.Because the vehicle centrifugal action of sharp radius curve beam is remarkable with " curved-turn round be coupled " effect, make Sharp-Radius Curved Bridges at run duration, case beam easily produces lateral displacement and the torsional deflection in larger past outside; Again because temperature action will cause camber beam longitudinal strain, integrate and just cause curved box girder planar to produce swing offset, thus easily cause seat empty, shrinkage joint is damaged, pier shaft and box-beam structure ftracture, the even serious problems such as unbalance loading nowel beam entirety inclination.
For the problems referred to above, practitioner is had to propose some improvement opportunity schemes, comprise: (1) all arranges double support or multiple bearing on each bridge pier and abutment of continuous curved girder, change the design scheme that a bearing only arranged by traditional middle bridge pier, be beneficial to case beam antitorque, avoid case beam inclination accident occurs; (2) in position arrange the various multi-form bearings such as one-way movable, bi-directional movable or mode tensile supporting seat (aseismatic bearing), with the vertical, horizontal displacement of restrictive curve case beam, and prevent seat empty.
But the problem existing for above-mentioned improvement opportunity scheme is: (1) substantially increases quantity and the kind of bridge pad, generally need adopt pot rubber bearing, involve great expense.(2) neoprene bearing is easily aging, within general about 15 years, needs to change, and bridge inspection and maintenance expense is large.(3) due to the impact on plane curve and the longitudinal and transverse slope of bridge floor, the bearing of vertical most amount is installed, and its construction quality not easily ensures.If bearing is not accurately installed, be then difficult to the normal effect ensureing bearing, thus the quality and safety of bridge construction can be had influence on.(4) along with the increase of bearing quantity, engineering quantity and the cost of bridge substructure is correspondingly too increased.In sum, preferably technical scheme is not had in prior art.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical problem existed for prior art, the invention provides that a kind of structure is simple, easy construction, can improve the sharp radius curve firm structure system bridge of bridge construction reliability and safety.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of sharp radius curve firm structure system bridge, comprise supporting component and bridge deck unit, described bridge deck unit is installed on the top of supporting component, described bridge deck unit is made up of steel box-girder, described supporting component comprises the pier consolidation pier of more than and the non-consolidation pier of more than, described pier consolidation pier is concrete filled steel tube single-column pier, and described non-consolidation pier is provided with freely movable bearing.
As a further improvement on the present invention: described pier consolidation pier is positioned at the medium position of bridge deck unit, described non-consolidation pier is positioned at the two ends of bridge deck unit.
As a further improvement on the present invention: described pier consolidation pier comprises pier joist steel sleeve pipe, the base plate of described steel box-girder is provided with perforate, the top of described pier joist steel sleeve pipe to extend in perforate and welds with steel box-girder, is provided with cast-in-situ steel reinforced concrete in described pier joist steel sleeve pipe.
As a further improvement on the present invention: the bottom of described pier joist steel sleeve pipe is fixed on ground by bottom deck assembly.
As a further improvement on the present invention: be provided with steel fibrous concrete layer and asphalt concrete layer above the steel box-girder of described bridge deck unit to form mixed layer bridge floor, described steel fibrous concrete layer is laid near steel box-girder.
As a further improvement on the present invention: between described steel fibrous concrete layer and asphalt concrete layer, waterproofing course is set.
Compared with prior art, the invention has the advantages that:
1, sharp radius curve of the present invention firm structure system bridge, structure is simple, easy construction, due to the pier consolidation pier of consolidation, and then the bearing eliminated on pier, thus decreasing the total quantity of full-bridge bearing, construction is relatively easy, and construction quality is easy to control, save cost, remarkable in economical benefits.Meanwhile, because of pier consolidation, thoroughly can solve that camber beam plane displacement is excessive, seat empty, shrinkage joint damages and case beam rolls problem, improves reliability and the safety of bridge construction.
2, sharp radius curve of the present invention firm structure system bridge, owing to decreasing the quantity of full-bridge neoprene bearing (easily aging), the durability of bridge construction is improved; Simultaneously also correspondingly decrease replacing time quantity, reduce bridge inspection and maintenance expense.
3, sharp radius curve of the present invention firm structure system bridge, with in the past by compared with the successive inventory system that increases bearing, there is the advantage of economy, safe, durable and easy construction, solving the problems such as face, case Liangping internal shift easily occurs Sharp-Radius Curved Bridges, seat empty, shrinkage joint are damaged, structure crack and box girder integral inclination preferably, is a kind of scientific and reasonable, new architecture bridge with broad prospect of application.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Fig. 2 is the catenation principle schematic diagram of the present invention's pier consolidation pier and bridge deck unit in embody rule example.
Fig. 3 is the catenation principle schematic diagram of the present invention's non-consolidation pier and bridge deck unit in embody rule example.
Fig. 4 is the syndeton schematic diagram of the present invention's pier consolidation pier and bridge deck unit in embody rule example.
Fig. 5 is the partial structurtes schematic diagram that the present invention's pier consolidation pier in embody rule example is connected with bridge deck unit.
Fig. 6 is the partial structurtes schematic diagram of the present invention when pier consolidation pier is connected with bridge deck unit in embody rule example bottom steel box-girder.
Fig. 7 is the placement schematic diagram of the present invention's non-consolidation pier upper bracket in embody rule example.
Marginal data:
1, pier consolidation pier; 101, pier joist steel sleeve pipe; 2, non-consolidation pier; 3, steel box-girder; 301, perforate; 4, steel fibrous concrete layer; 5, asphalt concrete layer; 6, waterproofing course; 7, freely movable bearing.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As shown in Figure 1, Figure 2 and Figure 3, sharp radius curve of the present invention firm structure system bridge, comprise supporting component and bridge deck unit, bridge deck unit is installed on the top of supporting component.This bridge deck unit is made up of steel box-girder 3, supporting component comprises the pier consolidation pier 1 of more than and the non-consolidation pier 2 of more than, wherein pier consolidation pier 1 adopts concrete filled steel tube single-column pier, non-consolidation pier 2 all adopts freely movable bearing 7, to meet the longitudinal strain requirement that steel box-girder 3 causes because of variations in temperature.Wherein, concrete filled steel tube is a kind of combining structure, than steel work economy; Relative to the pier of steel concrete, concrete filled steel tube single-column pier reduces sectional dimension and rigidity, improves the flexibility of pier, to adapt to vertical, horizontal that superstructure curved box girder and bridge floor cause because of the shrinkage and creep of variations in temperature, material and rotational deformation.Meanwhile, structural strength and stability and safety can be ensured again.
When embody rule, pier consolidation pier 1 is generally positioned at the medium position of bridge deck unit, and the non-consolidation pier 2 as transition pier is positioned at the two ends of bridge deck unit.
As shown in Figure 4, Figure 5 and Figure 6, pier consolidation pier 1 comprises pier joist steel sleeve pipe 101, the base plate of steel box-girder 3 is provided with perforate 301, and the top of pier joist steel sleeve pipe 101 to extend in perforate 301 and welds with steel box-girder 3, is provided with cast-in-situ steel reinforced concrete in pier joist steel sleeve pipe 101.The bottom of pier joist steel sleeve pipe 101 is fixed on ground by bottom deck assembly.
In the present embodiment, be provided with steel fibrous concrete layer 4 and asphalt concrete layer 5 above the steel box-girder 3 of bridge deck unit to form mixed layer bridge floor, steel fibrous concrete layer 4 is laid near steel box-girder 3.Namely, when embody rule, first first spread the C50 steel fibre expansive concrete of necessarily thick (as: 12cm) as steel fibrous concrete layer 4 at the end face of steel box-girder 3, then spread the thick asphalt concrete pavement of certain thickness (as: 10cm) to form asphalt concrete layer 5.Just can be reduced the Vertical Temperature Gradient and structure temperature stress at sunshine of steel box-girder 3 by above-mentioned mixed layer bridge floor, and increase the integral rigidity of bridge floor local stiffness and steel box-girder 3, be beneficial to solve bridge deck structure fatigue problem, improve safety of structure and durability.
In the present embodiment, waterproofing course 6 can also be set between steel fibrous concrete layer 4 and asphalt concrete layer 5 further.
In the present embodiment, as shown in Figure 7, in figure, dashed centre line is the center line of steel box-girder 3, and center line both sides arrow is towards pile No. direction of advance, and each freely movable bearing 7 all has the freely movable bearing 7 on longitudinally certain and/or horizontal non-consolidation pier 2.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (6)
1. a sharp radius curve firm structure system bridge, comprise supporting component and bridge deck unit, described bridge deck unit is installed on the top of supporting component, described bridge deck unit is made up of steel box-girder (3), it is characterized in that, described supporting component comprises the pier consolidation pier (1) of more than and the non-consolidation pier (2) of more than, and described pier consolidation pier (1) is concrete filled steel tube single-column pier, and described non-consolidation pier (2) is provided with freely movable bearing (7).
2. sharp radius curve according to claim 1 firm structure system bridge, is characterized in that, described pier consolidation pier (1) is positioned at the medium position of bridge deck unit, and described non-consolidation pier (2) is positioned at the two ends of bridge deck unit.
3. sharp radius curve according to claim 1 firm structure system bridge, it is characterized in that, described pier consolidation pier (1) comprises pier joist steel sleeve pipe (101), the base plate of described steel box-girder (3) is provided with perforate (301), the top of described pier joist steel sleeve pipe (101) to extend in perforate (301) and welds with steel box-girder (3), is provided with cast-in-situ steel reinforced concrete in described pier joist steel sleeve pipe (101).
4. sharp radius curve according to claim 3 firm structure system bridge, is characterized in that, the bottom of described pier joist steel sleeve pipe (101) is fixed on ground by bottom deck assembly.
5. the sharp radius curve firm structure system bridge according to claim 1 or 2 or 3 or 4, it is characterized in that, steel box-girder (3) top of described bridge deck unit is provided with steel fibrous concrete layer (4) and asphalt concrete layer (5) to form mixed layer bridge floor, and described steel fibrous concrete layer (4) is near steel box-girder (3) laying.
6. sharp radius curve according to claim 5 firm structure system bridge, is characterized in that, arranges waterproofing course (6) between described steel fibrous concrete layer (4) and asphalt concrete layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510231389.5A CN104790287B (en) | 2015-05-08 | 2015-05-08 | A kind of sharp radius curve firm structure system bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510231389.5A CN104790287B (en) | 2015-05-08 | 2015-05-08 | A kind of sharp radius curve firm structure system bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104790287A true CN104790287A (en) | 2015-07-22 |
| CN104790287B CN104790287B (en) | 2016-08-31 |
Family
ID=53555447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510231389.5A Expired - Fee Related CN104790287B (en) | 2015-05-08 | 2015-05-08 | A kind of sharp radius curve firm structure system bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104790287B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004156292A (en) * | 2002-11-06 | 2004-06-03 | Nippon Steel Corp | Three dimensional rigid frame structure |
| US20040216249A1 (en) * | 2003-04-29 | 2004-11-04 | El-Badry Mamdouh M. | Corrosion-free bridge system |
| CN201155080Y (en) * | 2008-02-14 | 2008-11-26 | 黄诚 | Large-span V-shaped continuous rigid frame bridge |
| CN202595613U (en) * | 2012-04-13 | 2012-12-12 | 长沙理工大学 | Structure of small and medium prestressed concrete bridges with short piers |
| CN103061271A (en) * | 2012-12-25 | 2013-04-24 | 中铁大桥勘测设计院集团有限公司 | Single plate force-bearing reinforcing method of hollow slab bridge |
| CN203559330U (en) * | 2013-11-04 | 2014-04-23 | 中铁第一勘察设计院集团有限公司 | Railway space deformed rigid framework continuous beam |
| CN103898829A (en) * | 2012-12-26 | 2014-07-02 | 中铁第四勘察设计院集团有限公司 | Continuous platform bridge of T structure with cantilever |
| CN203795291U (en) * | 2014-03-27 | 2014-08-27 | 广州瀚阳工程咨询有限公司 | Bearing-free prestressed concrete continuous rigid frame bridge with single-wall piers |
-
2015
- 2015-05-08 CN CN201510231389.5A patent/CN104790287B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004156292A (en) * | 2002-11-06 | 2004-06-03 | Nippon Steel Corp | Three dimensional rigid frame structure |
| US20040216249A1 (en) * | 2003-04-29 | 2004-11-04 | El-Badry Mamdouh M. | Corrosion-free bridge system |
| CN201155080Y (en) * | 2008-02-14 | 2008-11-26 | 黄诚 | Large-span V-shaped continuous rigid frame bridge |
| CN202595613U (en) * | 2012-04-13 | 2012-12-12 | 长沙理工大学 | Structure of small and medium prestressed concrete bridges with short piers |
| CN103061271A (en) * | 2012-12-25 | 2013-04-24 | 中铁大桥勘测设计院集团有限公司 | Single plate force-bearing reinforcing method of hollow slab bridge |
| CN103898829A (en) * | 2012-12-26 | 2014-07-02 | 中铁第四勘察设计院集团有限公司 | Continuous platform bridge of T structure with cantilever |
| CN203559330U (en) * | 2013-11-04 | 2014-04-23 | 中铁第一勘察设计院集团有限公司 | Railway space deformed rigid framework continuous beam |
| CN203795291U (en) * | 2014-03-27 | 2014-08-27 | 广州瀚阳工程咨询有限公司 | Bearing-free prestressed concrete continuous rigid frame bridge with single-wall piers |
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| Publication number | Publication date |
|---|---|
| CN104790287B (en) | 2016-08-31 |
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Granted publication date: 20160831 |
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