CN202787067U - Bridge seamless type expansion joint structure - Google Patents
Bridge seamless type expansion joint structure Download PDFInfo
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- CN202787067U CN202787067U CN 201220381657 CN201220381657U CN202787067U CN 202787067 U CN202787067 U CN 202787067U CN 201220381657 CN201220381657 CN 201220381657 CN 201220381657 U CN201220381657 U CN 201220381657U CN 202787067 U CN202787067 U CN 202787067U
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Abstract
The utility model relates to a bridge seamless type expansion joint structure. Sponge bodies are used to fill in gaps between adjacent beams on a mound platform of a bridge, and a gap top steel cover plate is arranged above the gaps and fixed through steel nails. A TST negative moment reinforcement broken stone precast block is fixed in a reserved groove which is arranged according to bridge deformation demands through adhesive special for TST in a bonding mode, and the TST negative moment reinforcement broken stone precast block is fixedly connected with the beams in the vertical direction through countersunk head rivets. An upper layer of the TST negative moment reinforcement broken stone precast block is paved with an expansion joint top layer pavement layer and negative moment reinforcement meshes, and therefore expansion joints and a bridge pavement layer form a continuous body, the bridge surface is smooth and seamless, large-scale equipment is not needed, repair and transportation are convenient, construction speed is fast, and construction cost is low.
Description
Technical field
The utility model relates to a kind of bridge expansion joint structure, and particularly a kind of extrusome is the seamless bridge joint structure of TST reinforced rubble prefabricated section.Belong to the bridge engineering field, be applicable to the following middle-size and small-size bridge of telescopic displacement 50mm.
Background technology
For the factors such as expanding with heat and contract with cold of preventing that variations in temperature from causing, creep and shrinkage of concrete and live loading cause destruction to bridge construction, satisfy the dilatation demand of beam body, bridge floor, guaranteeing simultaneously that vehicle is smooth-going passes through, usually between two beam-ends, between beam-ends and the abutment or the articulated position of bridge the shrinkage joint is set.These position long term exposure are in natural environment, and because the bond strength of concrete slab or beam not, the repeated stock effect that need directly bear wheel load, the reasons such as fret wear and fatigue are to be subject to most in the bridge construction to destroy and difficult position of repairing.And expansion gap device damages to can causing namely that to a certain degree bridge floor jumps car, thereby affects the structural safety of bridge.Therefore, desirable shrinkage joint must meet the following conditions: (1) meets the deformation requirements between the He Liang and platform between superstructure beam and the beam; (2) anchoring is solid and reliable, durable in use, can resist mechanical wear, collision, and guarantees that Vehicle Driving Cycle is steady, comfortable; (3) can prevent that rainwater and rubbish from infiltrating; (4) easy for installation, simple, easily check and be convenient to maintenance, change and keep in repair.
The type at shrinkage joint depends primarily on the stroke of bridge, and size is determined as calculated, and should be considered to leave certain additional amount and note construction measure.For little stroke bridge expanssion joint, at present domestic what generally use is steel plate shrinkage joint, rubbery expansion joint, pitch shrinkage joint or seamless shrinkage joint.From the mode of occupation of above several shrinkage joint engineering, have respectively following characteristics: (1) steel plate shrinkage joint cost is higher, road-ability poor and also be not easy to the maintenance; (2) the rubber tile loose or dislocation appears in rubbery expansion joint easily, the phenomenon such as vertically gets deeply stuck in; (3) pitch shrinkage joint adhesiveness is relatively poor, and application life is short, and maintenance cost is high; (4) seamless shrinkage joint is mainly adopted and is secretly buried TST rubble elasticity extrusome, has good adhesiveness and elastic restoring force, and road-ability is good, and curing time is short, and the loss of traffic that causes because of the seam maintenance is reduced to bottom line.But need special equipment (TST melting pot) fusing TST material, heating (TST heater) building stones, top layer construction (flat plate heat vibrator and special-purpose spreader), and other cleaning or drying plant, these equipment volume are huge, and inconvenience maintenance, transportation have increased maintenance cost.
Summary of the invention
The purpose of this utility model overcomes defects exactly, and a kind of seamless bridge expanded joint structure is provided, and need not main equipment, the maintenance convenient transport, and the engineering time is short, construction cost is low.
In order to realize above-mentioned technical purpose, the utility model has adopted following technical scheme:
A kind of bridge gapless expanded joint structure is characterized in that filling in the slit between the adjacent beams body cavernous body wide, isometric with the slit; Between the adjacent beams body, top, slit fluting, bottom land is settled steel deck-plate; Extrusome is set above the steel deck-plate; Lay the top layer layer of mating formation at extrusome, beam body top, top layer is mated formation and the reinforced bar net sheet is set in the layer.
Aforesaid bridge gapless expanded joint structure is characterized in that described extrusome is TST reinforced rubble prefabricated section, be combined through adhesive with beam body side surface, steel deck-plate surface, top, and it is inner to adopt sunk head rivet to be fixed on the beam body at vertical direction.
Aforesaid bridge gapless expanded joint structure is characterized in that described reinforced bar net sheet is arranged on the centre at shrinkage joint, shrinkage joint top layer mat formation layer material and a thickness identical with bridge deck pavement employing.
Aforesaid bridge gapless expanded joint structure is characterized in that steel deck-plate and shrinkage joint are isometric, is fixed on the cavernous body by steel nail.
Aforesaid bridge gapless expanded joint structure is characterized in that described extrusome is that TST reinforced rubble prefabricated section vertical direction is reserved rivet hole, and inside arranges prefabricated section reinforced bar net sheet.
The utility model is laid the TST rubble and is changed TST reinforced rubble prefabricated section into by the scene, avoided the carrying of TST molten material and heating building stones main equipment, has that speed of application is fast, cost is low, the efficient high.
Description of drawings
Fig. 1 is the utility model seamless bridge shrinkage joint profile;
Fig. 2 is TST reinforced rubble prefabricated section generalized section;
Among the figure: the 1-shrinkage joint top layer layer of mating formation; The 2-bridge deck pavement; 3-reinforced bar net sheet; The 4-TST adhesive specially; 5-TST reinforced rubble prefabricated section; The 6-sunk head rivet; The 7-cavernous body; 8-beam body; 9-seam top steel deck-plate; The 10-steel nail; The 11-neoprene bearing; The 12-Bridge Pier, 13-reserves rivet hole, 14-prefabricated section reinforcing bar.
Specific embodiment
The design parameters of Bridge Pier, prefabrication of beam installation, neoprene bearing, the layer of mating formation, seamless bridge joint maintenance etc. are not repeated in the present embodiment, and emphasis is set forth the embodiment that the utility model relates to structure.
Fig. 1 is the utility model seamless bridge shrinkage joint profile, with reference to shown in Figure 1, a kind of seamless bridge joint structure, the cavernous body 7 of inserting in the slit on Bridge Pier 12 between the adjacent beams body 8, be polyurethane foam, thickness is 100mm, and is wide, isometric with adjacent beams body 8 slits, fill up as far as possible, do not interspace;
According to the shrinkage joint dimensional requirement, settle the seam top steel deck-plate 9 of seam special use on top, beam slab 8 slits, work to stride seam and supporting upper T ST rubble reinforcement prefabricated section 5.For guaranteeing that stitching top steel deck-plate 9 does not depart from the slit, the every 30cm in steel deck-plate 9 fore-and-aft plane centers, top establishes an aperture along seam, by aperture steel nail 10 is hammered in the cavernous body 7 during construction.Top layer steel deck-plate 9 thickness are 6mm, and overall length is that the shrinkage joint is long.Steel nail 10 can be with common buildings with 4 cun wire nails, and sharpening gets final product;
TST adhesive special thickness is that consumption is about 0.26kg/m2 about 1 ~ 2mm.TST adhesive special 4 is elastomeric material, and its solid content is not less than 40%, and bond strength is not less than 0.25MPa, and shear strength is not less than 0.18MPa.
Fig. 2 is TST reinforced rubble prefabricated section generalized section, with reference to shown in Figure 2, TST rubble reinforcement prefabricated section 5 is unified prefabricated by precasting yard, is formed by TST material, rubble, reinforcement and other interpolation material (antioxidant, softening agent, tackifier, arbitrary proportion) placement layer by layer.The prefabricated section size can be determined according to the requirement at shrinkage joint, compare with traditional TST rubble shrinkage joint, need not larger construction equipment, be convenient to the maintenance transportation, easy construction fast, quality is easy to ensure and control, save cost, and have preferably technical economic benefit.
The hard limestone gravel that building stones are corner angle, embedding is good that adopts.Wherein main stor(e)y building stones specification is the S5(square hole screen), particle size range is 20 ~ 40mm, and the crush values crush values is not more than the above particle diameter content of 28%, 19mm and is no less than 70%, and flat and elongated particle content is not more than 15%; Top layer building stones specification is the S12(square hole screen), particle size range is 5 ~ 10mm; Necessary cleaning, heating before building stones use, the temperature of heating is 130 ~ 150 ℃.
TST material main component is high molecular polymer and pitch, and requiring its breaking strength is 0.20MPa ~ 0.30MPa, and elongation at break is not less than 800%, and softening point is not less than 100oC, and brittle point is not more than-40 oC, and being heated to 190 ~ 210 ℃ during use becomes fluid.Therefore have higher intensity and elastic restoring force, and can show plastic behavior to satisfy the needs of deformation joint, good integrity, good, the easy construction, flexible of road-ability.
Reserve rivet hole 13 when TST reinforced rubble prefabricated section 5 is prefabricated.Sunk head rivet 6 diameters are 16mm, run through the reservation rivet hole 13 in the TST rubble reinforcement prefabricated section 6, and stretch into beam body 8 interior 30mm and fix.
Prefabricated section reinforcing bar 14 adopts diameter 3mm steel wire welded to be connected into net, mesh size 20mm * 20mm, and length and width are determined according to TST reinforcement prefabricated section 5 sizes.
TST rubble reinforcement prefabricated section 5 is made and is adopted the layering spreading method, and its key step is: (1) settles prefabricated section reinforcing bar 14 in template, and reservation rivet hole 13 is set.(2) main stor(e)y paves: the main stor(e)y building stones with heating pour in the template first, then are cast on the main stor(e)y building stones with the TST material that melts immediately, and in time adopt the vibratory compaction of oscillating flat plate device, guarantee that the TST material no longer sinks, and the building stones surface is without showing money or valuables one carries unintentionally.The main stor(e)y upper surface should divide 2 ~ 3 layers to pave according to the prefabricated section size apart from about the 10mm of template top, and main stor(e)y TST material and building stones amount ratio adopt 1:3.6.(3) top layer paves: adopt mixing method, top layer building stones and the TST material that heated mixed and stirred under the temperature of regulation fast, be layered on immediately and dominate, and vibratory compaction.Top layer TST material and building stones amount ratio adopt 1:4.0.(4) finishing: the top layer is scraped the TST material of one deck fusing thereon after paving and finishing, and uses the vibration board vibration compacting.
Suppose that TST rubble reinforcement prefabricated section 5 is of a size of 2000mm * 224mm * 70mm, wherein TST material materials are about 6801.8cm
2, main stor(e)y building stones materials are about 21298.2cm
2, top layer building stones materials are about 3120cm
2, other adds the material materials and is about 34.3cm
2
The Specific construction technique at seamless bridge shrinkage joint comprises the steps:
(1) cutting notch or remove old seam is determined the position, shrinkage joint, when the shrinkage joint is installed, if beam body 8 is not reserved notch, along fixed position cutting notch, the size conforms designing requirement of notch.
(2) clean notch with giant, remove surface dust, dust and foreign material in the notch, then dry notch with flame thrower.In adjacent beams body 8 slits, fill out cavernous body 7, fill up as far as possible, do not interspace.
(3) above adjacent beams body 8 slits, settle seam top steel deck-plate 9, fixing with steel nail 10, and note centering.
(4) evenly brush TST adhesive special 4 in the notch scope, do not show money or valuables one carries unintentionally, thickness is 1 ~ 2mm.
(5) with TST reinforced rubble prefabricated section 5, be placed in the groove, and utilize sunk head rivet 6 vertically to pass reservation rivet hole 13 in the TST reinforced rubble prefabricated section 5, stretch in the beam body 8 and be fixedly connected with.
(6) above TST reinforced rubble prefabricated section 5, place to lay the shrinkage joint top layer layer 1 of mating formation, and reinforced bar net sheet 3 is set when laying to the centre position, and guarantee that bridge floor is smooth continuously.
Claims (5)
1. a bridge gapless expanded joint structure is characterized in that filling in the slit between the adjacent beams body cavernous body wide, isometric with the slit; Between the adjacent beams body, top, slit fluting, bottom land is settled steel deck-plate; Extrusome is set above the steel deck-plate; Lay the top layer layer of mating formation at extrusome, beam body top, top layer is mated formation and the reinforced bar net sheet is set in the layer.
2. bridge gapless expanded joint structure according to claim 1, it is characterized in that described extrusome is TST reinforced rubble prefabricated section, be combined through adhesive with beam body side surface, steel deck-plate surface, top, and it is inner to adopt sunk head rivet to be fixed on the beam body at vertical direction.
3. bridge gapless expanded joint structure according to claim 1 is characterized in that described reinforced bar net sheet is arranged on the centre at shrinkage joint, shrinkage joint top layer mat formation layer material and a thickness identical with bridge deck pavement employing.
4. bridge gapless expanded joint structure according to claim 1 is characterized in that steel deck-plate and shrinkage joint are isometric, is fixed on the cavernous body by steel nail.
5. bridge gapless expanded joint structure according to claim 2 is characterized in that described extrusome is that TST reinforced rubble prefabricated section vertical direction is reserved rivet hole, and inside arranges prefabricated section reinforced bar net sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381657 CN202787067U (en) | 2012-08-02 | 2012-08-02 | Bridge seamless type expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381657 CN202787067U (en) | 2012-08-02 | 2012-08-02 | Bridge seamless type expansion joint structure |
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| CN202787067U true CN202787067U (en) | 2013-03-13 |
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| CN 201220381657 Expired - Fee Related CN202787067U (en) | 2012-08-02 | 2012-08-02 | Bridge seamless type expansion joint structure |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018425A (en) * | 2014-06-24 | 2014-09-03 | 宁波路宝科技实业集团有限公司 | Quickly replaceable bridge expansion joint device and mounting method thereof |
| CN104711922A (en) * | 2015-03-24 | 2015-06-17 | 深圳市市政设计研究院有限公司 | Large-span prefabricated bridge structure |
| CN104746420A (en) * | 2015-04-08 | 2015-07-01 | 福州大学 | Structure for connecting upper and lower parts of bridge wrapped with rubber cap steel tube and constructing method thereof |
| CN104762873A (en) * | 2015-02-16 | 2015-07-08 | 西安公路研究院 | Abutment hidden expansion device and construction method thereof |
| CN104988847A (en) * | 2015-07-10 | 2015-10-21 | 缙云县工拓机械设备有限公司 | Damping bridge for automatic cleaning type stretchable joint device |
| CN105040582A (en) * | 2015-07-20 | 2015-11-11 | 浙江工业大学 | Bridge expansion joint structure |
| CN105484151A (en) * | 2015-12-04 | 2016-04-13 | 郑州大学 | Structure for enhancing connection among prefabricated concrete segments and construction method thereof |
| CN106835893A (en) * | 2016-12-14 | 2017-06-13 | 刘克军 | Ubbase drain blind ditch construction technique on TST road surfaces |
| CN109098082A (en) * | 2018-10-19 | 2018-12-28 | 佛山科学技术学院 | A kind of novel bridge building expanded joint structure |
| CN109722988A (en) * | 2019-02-25 | 2019-05-07 | 北京市市政工程设计研究总院有限公司 | A kind of shearing resistance bridge floor continuous structure and construction method |
| CN116396014A (en) * | 2023-04-14 | 2023-07-07 | 东南大学 | Rubber powder epoxy asphalt cement for expansion joint, prefabricated structure, preparation method and application thereof |
-
2012
- 2012-08-02 CN CN 201220381657 patent/CN202787067U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018425A (en) * | 2014-06-24 | 2014-09-03 | 宁波路宝科技实业集团有限公司 | Quickly replaceable bridge expansion joint device and mounting method thereof |
| CN104762873B (en) * | 2015-02-16 | 2016-05-25 | 西安公路研究院 | A kind of Abutment implicit expression retractor device and construction method thereof |
| CN104762873A (en) * | 2015-02-16 | 2015-07-08 | 西安公路研究院 | Abutment hidden expansion device and construction method thereof |
| CN104711922A (en) * | 2015-03-24 | 2015-06-17 | 深圳市市政设计研究院有限公司 | Large-span prefabricated bridge structure |
| CN104711922B (en) * | 2015-03-24 | 2017-01-04 | 深圳市市政设计研究院有限公司 | A kind of Large-span Precast bridge structure |
| CN104746420A (en) * | 2015-04-08 | 2015-07-01 | 福州大学 | Structure for connecting upper and lower parts of bridge wrapped with rubber cap steel tube and constructing method thereof |
| CN104746420B (en) * | 2015-04-08 | 2016-06-29 | 福州大学 | A kind of construction method of the bridge top and the bottom attachment structure of overcoat rubber cap steel pipe |
| CN104988847A (en) * | 2015-07-10 | 2015-10-21 | 缙云县工拓机械设备有限公司 | Damping bridge for automatic cleaning type stretchable joint device |
| CN104988847B (en) * | 2015-07-10 | 2016-08-17 | 南安市申达鑫通商贸有限公司 | A kind of bridge of the automatic cleaning type expansion gap device of damping |
| CN105040582A (en) * | 2015-07-20 | 2015-11-11 | 浙江工业大学 | Bridge expansion joint structure |
| CN105484151A (en) * | 2015-12-04 | 2016-04-13 | 郑州大学 | Structure for enhancing connection among prefabricated concrete segments and construction method thereof |
| CN106835893A (en) * | 2016-12-14 | 2017-06-13 | 刘克军 | Ubbase drain blind ditch construction technique on TST road surfaces |
| CN106835893B (en) * | 2016-12-14 | 2019-04-30 | 刘克军 | Ubbase drain blind ditch construction technique on the road surface TST |
| CN109098082A (en) * | 2018-10-19 | 2018-12-28 | 佛山科学技术学院 | A kind of novel bridge building expanded joint structure |
| CN109722988A (en) * | 2019-02-25 | 2019-05-07 | 北京市市政工程设计研究总院有限公司 | A kind of shearing resistance bridge floor continuous structure and construction method |
| CN116396014A (en) * | 2023-04-14 | 2023-07-07 | 东南大学 | Rubber powder epoxy asphalt cement for expansion joint, prefabricated structure, preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170802 |