CN104762875A - Surface seamless type bridge expansion joint - Google Patents
Surface seamless type bridge expansion joint Download PDFInfo
- Publication number
- CN104762875A CN104762875A CN201510182776.4A CN201510182776A CN104762875A CN 104762875 A CN104762875 A CN 104762875A CN 201510182776 A CN201510182776 A CN 201510182776A CN 104762875 A CN104762875 A CN 104762875A
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- Prior art keywords
- bridge
- rubber
- bearing plate
- loaded plate
- expansion joint
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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
The invention belongs to the technical field of road and bridge engineering, and relates to a surface seamless type bridge expansion joint. The surface seamless type bridge expansion joint is characterized in that lower sliding plate blocks are fixed to the tops of two cement main beams through anchoring devices respectively, elastic deformation bodies are arranged at the two ends of a bearing plate, one end of each elastic deformation body is fixedly connected with the bearing plate, the other ends of the elastic deformation bodies are fixedly connected with connecting steel bars reserved on the main beams, sliding shafts are arranged between the tops of the two cement main beams and the bearing plate, lubricant grooves are formed in the contact faces of the lower sliding plate blocks and the bearing plate, antiskid grooves are formed in the contact face of the bearing plate and a bridge deck pavement layer, and a limiting check block is fixed to the middle of the lower portion of the bearing plate. The surface seamless type bridge expansion joint has the advantages that telescopic deformation of a bridge is mainly completed below the bearing plate and on the elastic deformation bodies and the bridge deck pavement layer, due to the fact that the surface of the bridge expansion joint has no seam, running comfort is improved, the impact action of running loads to the bridge is weakened, the constriction period is short, the maintenance and replacement time of the expansion joint is shortened, bridge deck maintenance and pavement layer modification are facilitated, and the service life is prolonged.
Description
Technical field
The invention belongs to road and bridge field of engineering technology.
Background technology
Because bridge is by temperature Change or carload effect, concrete beam is made to produce distortion of expanding with heat and contract with cold, for ensureing the distortion of concrete beam energy free-extension, bridge is avoided to be out of shape and the generation stress that is obstructed because temperature changes, cause and bridge construction is destroyed, generally be arranged on adjacent two beam-ends or between beam and abutment parados, deformable device be set, i.e. shrinkage joint.
National standard highway mileage 360.96 ten thousand kilometers in 2012, standard highway accounts for 85.2% of total mileage of highway, wherein, secondary and above highway mileage 50.19 ten thousand kilometers, expressway construction mileage reaches 110,000 kilometers, and national highway bridge reaches 71.34 ten thousand, 3662.78 myriametres, wherein, Very Large Bridge 2688,468.86 myriametres, bridge 61735,1518.16 myriametres.The bridge expanssion joint type of main application both at home and abroad at present: 1) galvanized sheet metal shrinkage joint.On the Fabricated Simple Supported Beams bridge of Mid and minor spans, when the deflection of beam is often selected within 20-40mm.2) steel shrinkage joint: its structure more complicated, only just adopts on the larger area of the temperature difference or the bridge larger across footpath.3) rubbery expansion joint.It is using rubber strip as across seam material.The simple structure at this shrinkage joint.No matter but which kind of shrinkage joint all need arrange cast-in-situ concrete between extrusome and road pavement layer, shrinkage joint and main beam structure is made to form one.There is shortcoming in it:
1, road-ability is affected;
2, rainwater effect and produce Water Damage;
3, because the distortion at shrinkage joint makes the planeness on road surface poor, vehicle increases the impact force of bridge superstructure, reduces bridge application life;
4, bridge expanssion joint directly bear the impact of wheel weight and long term exposure in an atmosphere, along with the repeat function of Vehicle Load and the magnitude of traffic flow, and the temperature fatigue load that variations in temperature produces, very easily make bridge expanssion joint produce and damage.From current bridge defect analysis, the damage at shrinkage joint has become the Major Diseases of bridge, and frequently keeps in repair, changes shrinkage joint;
5, the replacing at shrinkage joint generally needs 10 days to 1 month, and not only having a strong impact on the unobstructed of traffic and safety, particularly speedway needs to seal car, potential safety hazard is larger, and cost is high, also brings 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, make the short problem of bridge life due to shrinkage joint.
Technical scheme of the present invention is: this expanded joint structure is primarily of loaded plate, sliding axle, downslide plate, elastic deformable body, bridge deck pavement composition.Downslide plate is fixed respectively by anchor device at bridge main beam top, loaded plate is set thereon, at loaded plate two ends, elastic deformable body is installed, elastic deformable body one end is fixedly connected with loaded plate, the connecting reinforcement that the other end is reserved with girder is fixedly connected with, making bridge deck pavement above loaded plate and elastic deformable body, between girder top and loaded plate, sliding axle is installed, the contact surface of downslide plate and loaded plate is provided with lubricant tank, loaded plate and bridge deck pavement contact surface are provided with anti-slip tank, in the middle of loaded plate bottom, are fixed with positive stop.
Bridge deck pavement can be adopted as high strength and high flexibility bituminous concrete, elaterite concrete, rubber modified asphalt concrete, change in surname bituminous concrete one or more.
Elastic deformation phosphor bodies is made up of support and rubber telescopic material, supporting structure is respectively equipped with end slipway by two columns, and two connecting rods are X-shape, and are slidably matched by end slipway, transverse slat is provided with horizontal slide, and two columns to be slidably matched composition by horizontal slide.
Rubber telescopic material comprises: rubber modified asphalt, ethylene propylene diene rubber, neoprene, isoprene rubber, butadiene rubber, butyl rubber, specific rubber; Elastic deformable body longitudinally should can produce distortion along bridge, vertically keeps small deformation.
The invention has the beneficial effects as follows: the dilatation of bridge mainly below loaded plate, elastic deformable body and bridge deck pavement complete, this bridge expansion joint structure is because of seamless surface, improve the comfortableness of driving, reduce the percussion of dynamic load by vehicle to bridge, construction period is short, reduce the maintain and replace time at shrinkage joint, facilitate Deck curing to keep in repair and overlay transformation, increase the service life.
Accompanying drawing explanation
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 elastic deformation 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, 2,1 is bridge deck pavement, and 2 is loaded plates, and 3 is lubricant tanks, and 4 is sliding axles, and 5 is anti-slip tanks, and 6 is girders, and 7 is blocks, and 8 is anchor devices, and 9 is downslide plates, and 10 is elastic deformable bodies.
As shown in Figure 3,11 is crossbeams, and 12 is columns, and 13 is end slipways, and 14 is connecting rods, and 15 is horizontal slides.
Structure of the present invention by loaded plate 2, lubricant tank 3, sliding axle 4, anti-slip tank 5, girder 6, block 7,8 anchor devices, 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 is fixedly connected with loaded plate 2, and the other end should be fixedly connected with by the connecting reinforcement reserved with girder 6, and elastic deformable body 10 is made up of slide mass, support and elastomeric material.Also rubber air spring and rubber telescopic material or deformable stent and rubber telescopic material can be adopted to form.Rubber telescopic material material comprises: rubber modified asphalt, ethylene propylene diene rubber, neoprene, isoprene rubber, butadiene rubber, butyl rubber, specific rubber; Elastic deformable body longitudinally should 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 change surname bituminous concrete, change in surname bituminous concrete one or more.
Embodiment 1:
Newly building bridge expanded joint structure: anchor device 8 is embedded in end of main beam, downslide plate 9 and anchor device 8 are fastened on girder surface, its end face is concordant with girder surface, above it loaded plate 2 is installed, and smears sliding agent at lubricant tank 3, at loaded plate 2 two ends, elastic deformable body 10 is installed, elastic deformable body 10 one end is fixedly connected with loaded 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
Bridge expansion joint structure changed by old bridge: downslide plate 9 and anchor device 8 are fastened on girder 6 surface, sliding axle 4 is fixed on girder 6 surface, above it loaded plate 2 is installed, and smear sliding agent at lubricant tank 3, install elastic deformable body 10 in loaded plate 2 both sides, elastic deformable body 10 one end is fixedly connected with loaded plate 2, and the other end should be fixedly connected with by the connecting reinforcement reserved with girder 6, more than install errorless after, making bridge deck pavement 1.
Claims (4)
1. a seamless surface type bridge expanssion joint, it is characterized in that: fix downslide plate at bridge main beam top respectively by anchor device, downslide plate arranges loaded plate, at loaded plate two ends, elastic deformable body is installed, elastic deformable body one end is fixedly connected with loaded plate, the connecting reinforcement that the other end is reserved with girder is fixedly connected with, making bridge deck pavement above loaded plate and elastic deformable body, between girder top and loaded plate, sliding axle is installed, the contact surface of downslide plate and loaded plate is provided with lubricant tank, loaded plate and bridge deck pavement contact surface are provided with anti-slip tank, positive stop is fixed with in the middle of loaded plate bottom.
2. a kind of seamless surface type bridge expanssion joint as claimed in claim 1, is characterized in that: bridge deck pavement can be adopted as high strength and high flexibility bituminous concrete, elaterite concrete, rubber change in surname bituminous concrete, modified asphalt concrete one or more.
3. a kind of seamless surface type bridge expanssion joint as claimed in claim 1, it is characterized in that: elastic deformation phosphor bodies is made up of support and rubber telescopic material, supporting structure is respectively equipped with end slipway by two columns, two connecting rods are X-shape, and be slidably matched by end slipway, transverse slat is provided with horizontal slide, and two columns to be slidably matched composition by horizontal slide.
4. a kind of seamless surface type bridge expanssion joint as claimed in claim 3, is characterized in that: rubber telescopic material comprises: rubber modified asphalt, ethylene propylene diene rubber, neoprene, isoprene rubber, butadiene rubber, butyl rubber, specific rubber; Elastic deformable body longitudinally should can produce distortion along bridge, vertically keeps small deformation.
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 true CN104762875A (en) | 2015-07-08 |
| CN104762875B CN104762875B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510182776.4A Active CN104762875B (en) | 2015-04-17 | 2015-04-17 | A kind of seamless surface type bridge expanssion joint |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947583A (en) * | 2015-07-10 | 2015-09-30 | 诸暨市丝百内纺织品有限公司 | Bridge adopting automatic cleaning type expansion joint device provided with balls |
| CN104975561A (en) * | 2015-07-10 | 2015-10-14 | 汪涛 | Bridge with automatic cleaning type expansion joint device with cams |
| CN105088938A (en) * | 2015-07-10 | 2015-11-25 | 江山市飞龙进出口有限公司 | Bridge of automatic cleaning type telescopic joint device with dustproof belt ring |
| CN110029576A (en) * | 2019-05-28 | 2019-07-19 | 广东金长成桥梁隧道科技有限公司 | A kind of no steel seamless bridge expansion gap device and its construction technology |
| CN111455880A (en) * | 2020-04-17 | 2020-07-28 | 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 |
| CN112921799A (en) * | 2021-03-01 | 2021-06-08 | 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 |
| CN114858329A (en) * | 2022-03-04 | 2022-08-05 | 浙江科技学院 | Structure of assembled seamless expansion joint atress monitoring |
| CN114858329B (en) * | 2022-03-04 | 2024-05-31 | 浙江科技学院 | Structure for stress monitoring of assembled seamless expansion joint |
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| JP2003206506A (en) * | 2002-01-15 | 2003-07-25 | Motonosuke Arai | Structure of road bridge joint part |
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| 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
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947583A (en) * | 2015-07-10 | 2015-09-30 | 诸暨市丝百内纺织品有限公司 | Bridge adopting automatic cleaning type expansion joint device provided with balls |
| CN104975561A (en) * | 2015-07-10 | 2015-10-14 | 汪涛 | Bridge with automatic cleaning type expansion joint device with cams |
| CN105088938A (en) * | 2015-07-10 | 2015-11-25 | 江山市飞龙进出口有限公司 | Bridge of automatic cleaning type telescopic joint device with dustproof belt ring |
| 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 |
| CN110029576A (en) * | 2019-05-28 | 2019-07-19 | 广东金长成桥梁隧道科技有限公司 | A kind of no steel seamless bridge expansion gap device and its construction technology |
| 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 |
| CN111455880A (en) * | 2020-04-17 | 2020-07-28 | 赵春旭 | Bridge expansion joint transition area repairing structure for data measurement and construction method thereof |
| 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 |
| 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 |
| CN112921799A (en) * | 2021-03-01 | 2021-06-08 | 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 |
| CN114858329A (en) * | 2022-03-04 | 2022-08-05 | 浙江科技学院 | Structure of assembled seamless expansion joint atress monitoring |
| CN114858329B (en) * | 2022-03-04 | 2024-05-31 | 浙江科技学院 | Structure for stress monitoring of assembled seamless expansion joint |
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| Publication number | Publication date |
|---|---|
| CN104762875B (en) | 2016-05-11 |
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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 |