CN104762875B - A kind of seamless surface type bridge expanssion joint - Google Patents
A kind of seamless surface type bridge expanssion joint Download PDFInfo
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- CN104762875B CN104762875B CN201510182776.4A CN201510182776A CN104762875B CN 104762875 B CN104762875 B CN 104762875B CN 201510182776 A CN201510182776 A CN 201510182776A CN 104762875 B CN104762875 B CN 104762875B
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- loading plate
- bridge
- deformable body
- plate
- elastic deformable
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of seamless surface type bridge expanssion joint, belong to road and bridge field of engineering technology, it is characterized in that: be fixed with downslide plate by anchor respectively at two cement girder tops, elastic deformable body is installed at loading plate two ends, elastic deformable body one end is fixedly connected with loading plate, the other end connecting reinforcement reserved with girder is fixedly connected with, between two cement girder tops and loading plate, sliding axle is installed, on the contact-making surface of downslide plate and loading plate, be provided with lubricant tank, on loading plate and bridge deck pavement contact-making surface, be provided with anti-slip tank, in the middle of loading plate bottom, be fixed with positive stop. beneficial effect is: the dilatation of bridge mainly below loading plate, elastic deformable body and bridge deck pavement complete, this bridge expansion joint structure is because of seamless surface, improve the comfortableness of driving, weaken the percussion of driving dynamic load to bridge, construction period is short, reduce the maintain and replace time at expansion joint, facilitate Deck curing maintenance and overlay transformation, increase the service life.
Description
Technical field
The invention belongs to road and bridge field of engineering technology.
Background technology
Because bridge is subject to temperature Change or carload effect, make beams of concrete produce the distortion of expanding with heat and contract with cold, for ensureing the distortion of beams of concrete energy free-extension, avoid bridge to be out of shape the generation stress that is obstructed because temperature changes, cause bridge structure is destroyed, operated by rotary motion arranges deformable device, i.e. expansion joint between adjacent two beam-ends or beam and abutment parados.
360.96 ten thousand kilometers of national standard highway mileages in 2012, standard highway accounts for 85.2% of total mileage of highway, wherein, 50.19 ten thousand kilometers of secondary and above highway mileages, expressway construction mileage reaches 110,000 kilometers, and national highway bridge reaches 71.34 ten thousand, 3662.78 myriametres, wherein, 2688 of Very Large Bridges, 468.86 myriametres, 61735 of bridges, 1518.16 myriametres. The bridge expanssion joint type of mainly applying both at home and abroad at present: 1) galvanized sheet metal expansion joint. On the Fabricated Simple Supported Beams bridge in Middle Or Small Span footpath, when the deflection of beam is often selected in 20-40mm. 2) steel expansion joint: its structure more complicated, only in the larger area of the temperature difference or the just employing on larger bridge across footpath. 3) rubbery expansion joint. It is using rubber strip as across seam material. The simple structure at this expansion joint. No matter but which kind of expansion joint all need arrange cast-in-place concrete between extrusome and paving layer, make expansion joint and main beam structure form one. There is shortcoming in it:
1, affect road-ability;
2, the effect of rainwater and produce Water Damage;
3, because the distortion at expansion joint makes the flatness on road surface poor, vehicle increases the impulsive force of bridge superstructure, reduces bridge service life;
4, bridge expanssion joint directly bears the impact of wheel weight and long term exposure in atmosphere, along with the repeat function of Vehicle Load and the magnitude of traffic flow, and the temperature fatigue load that produces of variations in temperature, very easily make bridge expanssion joint produce and damage. From current bridge defect analysis, the damage at expansion joint has become the Major Diseases of bridge, and frequently keeps in repair, changes expansion joint;
5, the replacing at expansion joint generally needs 10 days to 1 month, and the unobstructed and safety, particularly highway that not only have a strong impact on traffic need to be sealed car, potential safety hazard is larger, and cost is high, also bring waste and the environmental problem of resource simultaneously, improve the maintenance cost of bridge.
Summary of the invention
The object of the invention is: a kind of seamless surface type bridge expanssion joint is provided, it can solve bridge expanssion joint exist road-ability, because expansion joint makes the short problem of bridge life.
Technical scheme of the present invention is: this expanded joint structure is mainly made up of loading plate, sliding axle, downslide plate, elastic deformable body, bridge deck pavement. Fix downslide plate by anchor respectively at bridge main beam top, loading plate is set thereon, elastic deformable body is installed at loading plate two ends, elastic deformable body one end is fixedly connected with loading plate, the other end connecting reinforcement reserved with girder is fixedly connected with, loading plate and elastic deformable body top making bridge deck pavement, between girder top and loading plate, sliding axle is installed, on the contact-making surface of downslide plate and loading plate, be provided with lubricant tank, on loading plate and bridge deck pavement contact-making surface, be provided with anti-slip tank, in the middle of loading plate bottom, be fixed with positive stop.
Bridge deck pavement can be adopted as one or more in high strength and high flexibility bituminous concrete, elaterite concrete, rubber modified asphalt concrete, modified asphalt concrete.
Strain phosphor bodies is made up of support and rubber telescopic material, supporting structure is by being respectively equipped with end slipway in two columns, and two connecting rods are X-shape, and are slidably matched by end slipway, on transverse slat, be provided with horizontal slide, two columns are by the horizontal slide composition that is slidably matched.
Rubber telescopic material comprises: rubber modified asphalt, ethylene propylene diene rubber, neoprene, isoprene rubber, butadiene rubber, butyl rubber, specific rubber; Elastic deformable body should longitudinally can produce distortion along bridge, vertically keeps small deformation.
The invention has the beneficial effects as follows: the dilatation of bridge mainly below loading plate, elastic deformable body and bridge deck pavement complete, this bridge expansion joint structure is because of seamless surface, improve the comfortableness of driving, weaken the percussion of driving dynamic load to bridge, construction period is short, reduce the maintain and replace time at expansion joint, facilitate Deck curing maintenance and overlay transformation, increase the service life.
Brief description of the drawings
Fig. 1 is direction across bridge cross-section cutaway view of the present invention;
Fig. 2 be the present invention along bridge to cross-section cutaway view;
Fig. 3 is strain body structure top view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, 2, the 1st, bridge deck pavement, the 2nd, loading plate, the 3rd, lubricant tank, the 4th, sliding axle, the 5th, anti-slip tank, the 6th, girder, the 7th, block, the 8th, anchor, the 9th, downslide plate, the 10th, elastic deformable body.
As shown in Figure 3, the 11st, crossbeam, the 12nd, column, the 13rd, end slipway, the 14th, connecting rod, the 15th, horizontal slide.
Structure of the present invention is by loading plate 2, lubricant tank 3, sliding axle 4, anti-slip tank 5, girder 6, block 7, anchor 8, the structure that downslide plate 9 forms completes the dilatation of bridge, and the self-deformation of bridge deck pavement 1, elastic deformable body 10 keeps the smooth distortion on road surface.
Elastic deformable body 10 one end are fixedly connected with loading plate 2, and the connecting reinforcement that the other end should be reserved with girder 6 is fixedly connected with, and elastic deformable body 10 is made up of slide mass, support and elastomeric material. Also can adopt rubber air spring and rubber telescopic material or distortion support and rubber telescopic material composition. Rubber telescopic material material comprises: rubber modified asphalt, ethylene propylene diene rubber, neoprene, isoprene rubber, butadiene rubber, butyl rubber, specific rubber; Elastic deformable body should longitudinally can produce distortion along bridge, vertically keeps small deformation.
Bridge deck pavement 1 can be adopted as high strength and high flexibility bituminous concrete, elaterite concrete, rubber and change surname bituminous concrete, changes one or more in surname bituminous concrete.
Embodiment 1:
Newly building bridge expanded joint structure: anchor 8 is embedded in to end of main beam, downslide plate 9 and anchor 8 are fastened on to girder surface, its end face is concordant with girder surface, loading plate 2 is installed above it, and is smeared lubricant at lubricant tank 3, at loading plate 2 two ends, elastic deformable body 10 is installed, elastic deformable body 10 one end are fixedly connected with loading plate 2, the other end should be reserved with girder connecting reinforcement be fixedly connected with, more than install errorless after, making bridge deck pavement 1.
Embodiment 2
Old bridge is changed bridge expansion joint structure: downslide plate 9 and anchor 8 are fastened on to girder 6 surfaces, sliding axle 4 is fixed on to girder 6 surfaces, loading plate 2 is installed above it, and smear lubricant at lubricant tank 3, in loading plate 2 both sides, elastic deformable body 10 is installed, elastic deformable body 10 one end are fixedly connected with loading plate 2, and the connecting reinforcement that the other end should be reserved with girder 6 is fixedly connected with, more than install errorless after, making bridge deck pavement 1.
Claims (3)
1. a seamless surface type bridge expanssion joint, it is characterized in that: fix downslide plate by anchor respectively at bridge main beam top, on downslide plate, loading plate is set, elastic deformable body is installed at loading plate two ends, elastic deformable body one end is fixedly connected with loading plate, the other end connecting reinforcement reserved with girder is fixedly connected with, loading plate and elastic deformable body top making bridge deck pavement, between girder top and loading plate, sliding axle is installed, on the contact-making surface of downslide plate and loading plate, be provided with lubricant tank, on loading plate and bridge deck pavement contact-making surface, be provided with anti-slip tank, in the middle of loading plate bottom, be fixed with positive stop.
2. a kind of seamless surface type bridge expanssion joint as claimed in claim 1, is characterized in that: bridge deck pavement adopts rubber modified asphalt concrete.
3. a kind of seamless surface type bridge expanssion joint as claimed in claim 1, it is characterized in that: strain phosphor bodies is made up of support and rubber telescopic material, the structure of support is by being respectively equipped with end slipway in two columns, two connecting rods are X-shape, and be slidably matched by end slipway, on transverse slat, be provided with horizontal slide, two columns are by the horizontal slide composition that is slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182776.4A CN104762875B (en) | 2015-04-17 | 2015-04-17 | A kind of seamless surface type bridge expanssion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182776.4A CN104762875B (en) | 2015-04-17 | 2015-04-17 | A kind of seamless surface type bridge expanssion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104762875A CN104762875A (en) | 2015-07-08 |
| CN104762875B true CN104762875B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510182776.4A Active CN104762875B (en) | 2015-04-17 | 2015-04-17 | A kind of seamless surface type bridge expanssion joint |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088938B (en) * | 2015-07-10 | 2016-09-28 | 温岭市海玛进出口有限公司 | A kind of bridge of the automatic cleaning type expansion gap device with dust-proof apron |
| CN104975561B (en) * | 2015-07-10 | 2016-08-31 | 温岭市锦鹏日用品有限公司 | A kind of bridge of the automatic cleaning type expansion gap device of strap cam |
| CN104947583B (en) * | 2015-07-10 | 2016-08-17 | 诸暨市丝百内纺织品有限公司 | A kind of bridge of the automatic cleaning type expansion gap device of band ball |
| CN110029576B (en) * | 2019-05-28 | 2023-11-28 | 广东金长成桥梁隧道科技有限公司 | Steel-free seamless bridge expansion joint device and construction process thereof |
| CN111455880B (en) * | 2020-04-17 | 2022-03-18 | 赵春旭 | Bridge expansion joint transition area repairing structure for data measurement and construction method thereof |
| CN112239999A (en) * | 2020-11-25 | 2021-01-19 | 无锡市政设计研究院有限公司 | Novel bridge floor expansion joint structure |
| CN112239998A (en) * | 2020-11-25 | 2021-01-19 | 无锡市政设计研究院有限公司 | Construction method of novel bridge deck expansion joint structure |
| CN112921799B (en) * | 2021-03-01 | 2022-10-14 | 成都高速公路建设开发有限公司 | Construction method for urban bridge cross longitudinal and transverse expansion joints |
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| JP2003206506A (en) * | 2002-01-15 | 2003-07-25 | Motonosuke Arai | Structure of road bridge joint part |
| CN202125055U (en) * | 2011-06-28 | 2012-01-25 | 天津天一建设集团有限公司 | Expansion joint structure of indoor floor block veneer |
| CN202577139U (en) * | 2012-05-03 | 2012-12-05 | 山西省宏图建设工程有限公司 | Zipper-type road and bridge deformation joint device |
| CN202767256U (en) * | 2012-07-23 | 2013-03-06 | 青岛东亚建筑装饰有限公司 | Ground elastic expansion joint structure |
| CN203639815U (en) * | 2013-12-31 | 2014-06-11 | 成都市新筑路桥机械股份有限公司 | Seamless type large-displacement road footbridge expansion device |
| CN204000596U (en) * | 2014-06-30 | 2014-12-10 | 同济大学 | Bridge rhombus shrinkage joint |
| CN204570469U (en) * | 2015-04-17 | 2015-08-19 | 栾海 | A kind of seamless surface type bridge expanssion joint |
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2015
- 2015-04-17 CN CN201510182776.4A patent/CN104762875B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003206506A (en) * | 2002-01-15 | 2003-07-25 | Motonosuke Arai | Structure of road bridge joint part |
| CN202125055U (en) * | 2011-06-28 | 2012-01-25 | 天津天一建设集团有限公司 | Expansion joint structure of indoor floor block veneer |
| CN202577139U (en) * | 2012-05-03 | 2012-12-05 | 山西省宏图建设工程有限公司 | Zipper-type road and bridge deformation joint device |
| CN202767256U (en) * | 2012-07-23 | 2013-03-06 | 青岛东亚建筑装饰有限公司 | Ground elastic expansion joint structure |
| CN203639815U (en) * | 2013-12-31 | 2014-06-11 | 成都市新筑路桥机械股份有限公司 | Seamless type large-displacement road footbridge expansion device |
| CN204000596U (en) * | 2014-06-30 | 2014-12-10 | 同济大学 | Bridge rhombus shrinkage joint |
| CN204570469U (en) * | 2015-04-17 | 2015-08-19 | 栾海 | A kind of seamless surface type bridge expanssion joint |
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| CN104762875A (en) | 2015-07-08 |
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Effective date of registration: 20161229 Address after: 130021 Changchun workers and peasants Road, Jilin, No. 689 Patentee after: Jilin Communications Planning and Design Institute Address before: 130021 Changchun workers and peasants Road, Jilin, No. 689 Patentee before: Luan Hai |