CN206581145U - A kind of concrete-bridge end deck installation structure for exempting from expansion joint - Google Patents
A kind of concrete-bridge end deck installation structure for exempting from expansion joint Download PDFInfo
- Publication number
- CN206581145U CN206581145U CN201720013793.XU CN201720013793U CN206581145U CN 206581145 U CN206581145 U CN 206581145U CN 201720013793 U CN201720013793 U CN 201720013793U CN 206581145 U CN206581145 U CN 206581145U
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- Prior art keywords
- bridge
- concrete
- expansion joint
- exempting
- composite material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Road Paving Structures (AREA)
Abstract
The utility model discloses a kind of concrete-bridge end deck installation structure for exempting from expansion joint, set in concrete bridge beam end, using waveform sheet metal with and the deformability of high ductility cement-base composite material of internal bar planting adapt to the length travel that bridge is produced at temperature and load comprehensive function.Waveform sheet metal is located at beam bottom, and high ductility cement-base composite material end is fixed by the beams of concrete on steel anchor rod and both sides, the deck paving for making bonding pad and the deck paving formation smoothly transition closed on, improves driving comfort.The utility model is applied to newly-built or existing Short/Medium Span Bridge end of the bridge connection processing, the problems such as cost high maintenance changes difficulty and closes on concrete cracky when tradition sets expansion joint can effectively be solved, realize bridge to the seamless transitions of roadbed/dug way, have the advantages that easy construction, from safeguard, service life it is long, be a kind of long-acting concrete-bridge end deck installation structure for exempting from expansion joint.
Description
Technical field
The utility model is related to newly-built or existing Short/Medium Span Bridge end of the bridge connection processing technology field, and in particular to a kind of
Exempt from the concrete-bridge end deck installation structure at expansion joint.
Background technology
The expansion joint of bridge is chronically exposed in air, and use environment is more severe, is most subject to brokenly in bridge structure
It is bad and be relatively difficult to the position repaired.And the destruction of bridge expanssion joint, very big vehicular impact load may be caused again, crowded evil idea is stretched
Contracting seam body concrete, makes road surface the road surface breakages such as pit occur, causes to jump car, noise, leak, influence traffic safety, reduces bridge
Beam service life.Jointless bridge is a kind of innovation of Bridge Design theory, is met in life cycle management to bridge durability
With the requirement of sustainability, the ride comfort of driving can be substantially improved, impact and the extension bridge service life of vehicle, drop is reduced
Low construction and maintenance cost.
High ductility cement-base composite material has high limit stretching strain, high-tensile, superhigh tenacity, high Resisting fractre energy
Power, there is obvious stress hardening feature, can be well adapted for the length travel of bridge without producing overall cracking, and waveform is thin
Steel plate can freely stretch under responsive to axial force, and with higher anti-shearing buckling strength, equally can adapt to bridge in temperature
Degree and the length travel produced under load comprehensive function.
Utility model content
The utility model provides a kind of concrete-bridge end deck installation structure for exempting from expansion joint, can effectively solve the problem that biography
The problems such as cost high maintenance changes difficulty and closes on concrete cracky when system sets expansion joint, realizes bridge to roadbed/cutting
The seamless transitions of section, can improve driving comfort, be a kind of long-acting concrete-bridge end deck paving knot for exempting from expansion joint
Structure.
For achieving the above object, the utility model is adopted the following technical scheme that：
A kind of concrete-bridge end deck installation structure for exempting from expansion joint, in the both sides concrete-bridge for needing to connect
Anchor by welding profiled sheet to enter between the plain plate on plain plate, the end of described two concrete-bridges respectively on end
Row connection；High ductility cement-base composite material is poured between bridge deck pavement above the concrete-bridge of both sides；High ductility cement
Beams of concrete of the based composites by anchor bar respectively with both sides is fixed；Reinforcement built in high ductility cement-base composite material
Net；The seam crossing of high ductility cement-base composite material and both sides bridge deck pavement is poured into a mould high-elastic modified asphalt glue sand and connected respectively
Connect.
Further, the bridge is Short/Medium Span Bridge.
Further, the profiled sheet is waveform sheet metal.
Further, the reinforced bar net is GFRP fiberglass reinforced plastics muscle nets.
The beneficial effects of the utility model are：
1st, high ductility cement-base composite material compares traditional cement concrete, tough with obvious strain hardening feature
Property it is good, the ability and shear behavior for resisting flexural deformation are superior to conventional cement concrete, can effectively adapt to bridge and exist
Temperature and the length travel produced under load comprehensive function, will not reduce bearing capacity and overall broken because a large amount of microcracks are produced
It is bad；
2nd, using waveform sheet metal and high ductility cement-base composite material connecting bridge beam end, it is to avoid set expansion joint, subtract
Few expansion joint both sides concrete is damaged, greatly reduces maintenance cost；
3rd, high ductility cement-base composite material is connected with the smooth-going of original bridge deck pavement, is driven a vehicle more steady, reduces end of the bridge
The generation of car phenomenon is jumped, is conducive to traffic safety；
4th, can be bridge end by almost impermeable high-elastic modified asphalt glue sand and high ductility cement-base composite material
Comprehensive waterproofing protection is provided；
5th, using GFRP fiberglass reinforced plastics muscle nets, it is possible to reduce the concrete structure caused by steel bar corrosion is durable
Sex chromosome mosaicism.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Label in figure：1st, anchor bar；2nd, plain plate；3rd, high ductility cement-base composite material；4th, GFRP glass fibres increase
Strong plastic bar net；5th, waveform sheet metal；6th, high-elastic modified asphalt glue sand.
Embodiment
The utility model is developed on the basis of traditional bridge floor is continuous, but eliminates deck expansion installation, steel
Reinforced concrete deck paving and floorings make continuous seamless, are replaced using high ductility cement-base composite material and waveform sheet metal
Expansion joint, it is adaptable to Short/Medium Span Bridge.
As shown in figure 1, anchor plain plate 2 respectively on the end for the both sides concrete-bridge for needing to connect, plain plate 2 it
Between be attached by welding waveform sheet metal 5；High ductility water is poured between bridge deck pavement above the concrete-bridge of both sides
Cement-based composite material 3；Beams of concrete of the high ductility cement-base composite material 3 by anchor bar 1 respectively with both sides is fixed；Gao Yan
Property cement-base composite material 3 in lay GFRP fiberglass reinforced plastics muscle net 4；High ductility cement-base composite material 3 and both sides
The seam crossing of bridge deck pavement is poured into a mould high-elastic modified asphalt glue sand and is attached respectively.
Specific construction step is：(1) plain plate is anchored in concrete-bridge end surface, waveform sheet metal passes through welding
Form is connected with plain plate, so as to connect concrete bridge beam end；
(2) anchor bar is set in concrete bridge beam end；
(3) GFRP fiberglass reinforced plastics muscle nets are laid；
(4) outside sets support, template in advance in working face to be laid as needed, and fettler is carried out to working face
Make；
(5) using the high ductility cement-base composite material needed for cement concrete mixing station mix；
(6) the high ductility cement-base composite material of cast in situs, is transported using pumping mode, when pouring, should be by certain thickness
Degree, order and direction placement layer by layer, and layer concrete in completion should be poured in lower-layer concrete initial set or before remolding；Pour
Maintenance of being sprinkled water after canopy cover, due-in slurry is added after finishing immediately, curing time is no less than 7 days, notes high ductility cement-base composite material
Seam should be reserved between former bridge deck pavement；
(7) cast high-elastic modified asphalt glue sand enters at high ductility cement-base composite material with former deck paving bed joint
Row connection.
The composition of high ductility cement-base composite material includes vinal, water, sand, cement, high-quality fly ash and height
Imitate water reducer.
Fiber is the vinal that surface is handled through oiliness, density 1.30g/cm3, tensile strength 1600MPa, elasticity
Modulus 40GPa, fracture elongation 7%；Cement use intensity grade is not less than 42.5R Portland cement, presetting period
Not less than 45min, final setting time is not more than 600min, three days rupture strength >=4.0MPa, three days compression strength >=22MPa；Ore deposit
Polymer blends material uses stay in grade, the uniform flyash of supplied materials；Sand is using level with well, and homogeneous firm, water absorption rate is low, sky
Gap rate is small, maximum particle diameter 1.18mm fine river sand；Water reducer is high-efficiency water-reducing agent of poly-carboxylic acid, and water-reducing rate is not less than 20%, 28
Its compressive strength rate is not less than 120%, and shrinkage ratio is not more than 135%, and reinforcing bar non-corroding is acted on.
The ratio of each component is as follows：
Fibers content：1.5~2.5%；
Water-cement ratio：0.28~0.32；
Sand-binder ratio：0.33~0.43；
Doping quantity of fly ash：45~65%.
High ductility cement-base composite material production procedure：
(1) first cement, flyash, sand 2~3min of mixing dry mixing are well mixed between each grain fraction, then will be dissolved with
80%~90% water of whole water reducers is added, and 2~3min of stirring at low speed is to obtain the slurry of Uniform Flow；
(2) it is slowly added to the fiber disperseed by hand in advance by hand while stirring at low speed, after fiber is added completely into, quickly
4~5min is stirred to ensure that fiber can be dispersed in slurry；
(3) remaining 10%~20% water is added, quickly stirs 2~3min；
(4) concrete sample is molded, maintenance.
Fiberglass reinforced plastics muscle (GFRP muscle) is implanted into high ductility cement-base composite material, steel bar corrosion institute is reduced
Caused concrete structure durability problem, from diameter 16mm GFRP muscle, tensile strength >=500MPa, tensile modulus of elasticity
>=15.75MPa, bending strength >=450MPa, tensile strength loss late and modulus of elasticity loss late≤15%, -10 DEG C at 100 DEG C
Lower tensile strength loss late and modulus of elasticity loss late≤15%.
Connected between high ductility cement-base composite material end and both sides bridge deck pavement using high-elastic modified asphalt glue sand,
High-elastic modified asphalt glue sand is made up of SBS modified pitch, Machine-made Sand, miberal powder and polyester fiber, and asphalt content is by Marshall Test
It is determined that.Each component ratio situation is as follows：
SBS modified pitch：8-10%；
0-5mm Machine-made Sands：75-85%；
Miberal powder：10-15%；
Polyester fiber：0.15~0.30%.
SBS modified pitch should be met《Highway Construction of Modified Asphalt Pavement technical specification》Middle SBS (I-D) type technical requirements,
Softening point should be maintained at more than 75 DEG C；Machine-made Sand apparent density is not less than 2.5t/m3, robustness (be more than 0.3mm) is not more than 12%,
Sand equivalent is not less than 60%；Miberal powder apparent density is not less than 2.5t/m3, moisture content is not more than 1%, and particle size range ＜ 0.6mm are
100%th, ＜ 0.15mm are that 90%~100%, ＜ 0.075mm are 75%~100%, and hydrophilic coefficient is not more than 1.
Described above is only preferred embodiment of the present utility model, it should be pointed out that：For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (4)
1. a kind of concrete-bridge end deck installation structure for exempting from expansion joint, it is characterised in that mixed in the both sides for needing to connect
The end of solidifying soil bridge is anchored respectively to be attached between plain plate (2), the plain plate (2) by welding profiled sheet (5),
So as to connect both sides concrete-bridge；High ductility cement base is poured between bridge deck pavement above the both sides concrete-bridge
Composite (3)；The high ductility cement-base composite material (3) is solid with both sides concrete-bridge respectively by anchor bar (1)
It is fixed；Reinforced bar net (4) built in the high ductility cement-base composite material (3)；The high ductility cement-base composite material (3) and both sides
The seam crossing of bridge deck pavement is poured into a mould high-elastic modified asphalt glue sand and is attached respectively.
2. a kind of concrete-bridge end deck installation structure for exempting from expansion joint according to claim 1, it is characterised in that
The concrete-bridge is Short/Medium Span Bridge.
3. a kind of concrete-bridge end deck installation structure for exempting from expansion joint according to claim 1, it is characterised in that
The profiled sheet (5) is waveform sheet metal.
4. a kind of concrete-bridge end deck installation structure for exempting from expansion joint according to claim 1, it is characterised in that
The reinforced bar net (4) is GFRP fiberglass reinforced plastics muscle nets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720013793.XU CN206581145U (en) | 2017-01-06 | 2017-01-06 | A kind of concrete-bridge end deck installation structure for exempting from expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720013793.XU CN206581145U (en) | 2017-01-06 | 2017-01-06 | A kind of concrete-bridge end deck installation structure for exempting from expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206581145U true CN206581145U (en) | 2017-10-24 |
Family
ID=60109759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720013793.XU Expired - Fee Related CN206581145U (en) | 2017-01-06 | 2017-01-06 | A kind of concrete-bridge end deck installation structure for exempting from expansion joint |
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| CN (1) | CN206581145U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815963A (en) * | 2017-10-30 | 2018-03-20 | 深圳市威士邦建筑新材料科技有限公司 | A kind of bridge expanssion joint |
| CN109826093A (en) * | 2019-02-20 | 2019-05-31 | 唐峰 | A kind of bituminous concrete seamless expansion-contraction devices and its construction method |
| CN109972499A (en) * | 2019-04-12 | 2019-07-05 | 浙江工业大学 | Middle seamless telescopic structure of small and medium span simply supported highway bridge and construction method |
| CN110804940A (en) * | 2019-11-18 | 2020-02-18 | 江苏韧强建筑科技有限公司 | Continuous structure of ultrahigh molecular weight polyethylene fiber reinforced ultrahigh ductility concrete bridge floor |
| CN111074762A (en) * | 2019-12-11 | 2020-04-28 | 南通大学 | Seamless expansion joint of compound concrete bridge face of carbon cloth |
| CN111519527A (en) * | 2020-05-11 | 2020-08-11 | 中铁二十局集团市政工程有限公司 | Flexible joint connecting structure for steel structure bridge panel and construction method thereof |
| CN112095443A (en) * | 2020-09-14 | 2020-12-18 | 哈尔滨工业大学 | Interface strong-adhesion type seamless telescopic device and construction method thereof |
| CN112982189A (en) * | 2021-02-24 | 2021-06-18 | 中冶南方城市建设工程技术有限公司 | Steel plate girder wide hollow slab girder structure |
| CN114525720A (en) * | 2020-11-23 | 2022-05-24 | 韩国建设技术研究院 | Prefabricated slab bridge using continuous slab and construction method thereof |
-
2017
- 2017-01-06 CN CN201720013793.XU patent/CN206581145U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815963A (en) * | 2017-10-30 | 2018-03-20 | 深圳市威士邦建筑新材料科技有限公司 | A kind of bridge expanssion joint |
| CN107815963B (en) * | 2017-10-30 | 2023-09-15 | 深圳市威士邦建筑新材料科技有限公司 | Bridge expansion joint |
| CN109826093A (en) * | 2019-02-20 | 2019-05-31 | 唐峰 | A kind of bituminous concrete seamless expansion-contraction devices and its construction method |
| CN109826093B (en) * | 2019-02-20 | 2021-05-07 | 唐峰 | Asphalt concrete seamless expansion device and construction method thereof |
| CN109972499A (en) * | 2019-04-12 | 2019-07-05 | 浙江工业大学 | Middle seamless telescopic structure of small and medium span simply supported highway bridge and construction method |
| CN110804940A (en) * | 2019-11-18 | 2020-02-18 | 江苏韧强建筑科技有限公司 | Continuous structure of ultrahigh molecular weight polyethylene fiber reinforced ultrahigh ductility concrete bridge floor |
| CN111074762A (en) * | 2019-12-11 | 2020-04-28 | 南通大学 | Seamless expansion joint of compound concrete bridge face of carbon cloth |
| CN111074762B (en) * | 2019-12-11 | 2021-08-31 | 南通大学 | Seamless expansion joint of compound concrete bridge face of carbon cloth |
| CN111519527A (en) * | 2020-05-11 | 2020-08-11 | 中铁二十局集团市政工程有限公司 | Flexible joint connecting structure for steel structure bridge panel and construction method thereof |
| CN112095443A (en) * | 2020-09-14 | 2020-12-18 | 哈尔滨工业大学 | Interface strong-adhesion type seamless telescopic device and construction method thereof |
| CN114525720A (en) * | 2020-11-23 | 2022-05-24 | 韩国建设技术研究院 | Prefabricated slab bridge using continuous slab and construction method thereof |
| CN112982189A (en) * | 2021-02-24 | 2021-06-18 | 中冶南方城市建设工程技术有限公司 | Steel plate girder wide hollow slab girder structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171024 Termination date: 20210106 |