CN204551254U - A kind of bridge deck continuous seam structure - Google Patents
A kind of bridge deck continuous seam structure Download PDFInfo
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- CN204551254U CN204551254U CN201520081707.XU CN201520081707U CN204551254U CN 204551254 U CN204551254 U CN 204551254U CN 201520081707 U CN201520081707 U CN 201520081707U CN 204551254 U CN204551254 U CN 204551254U
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- 239000004567 concrete Substances 0.000 claims abstract description 57
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 239000010426 asphalt Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000003351 stiffener Substances 0.000 claims abstract description 22
- 230000002787 reinforcement Effects 0.000 claims abstract description 18
- 229920000728 polyester Polymers 0.000 claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims abstract description 12
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 9
- 238000013016 damping Methods 0.000 claims abstract description 9
- 239000004574 high-performance concrete Substances 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 description 8
- 201000010099 disease Diseases 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 241000370738 Chlorion Species 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004746 geotextile Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of bridge deck continuous seam structure, comprise bridge pier and the two boards beam being positioned at bridge pier end face, beam-ends seam is formed between two plate-girders, damping rubber block is filled up in described beam-ends seam, described plate-girder upper end arranges heated bitumen tack coat, described heated bitumen tack coat and described beam-ends seam place also arrange 3mm rubber spacer, described rubber spacer also arranges mix concrete layer, fibrous polyester anticracking layer of cloth and asphalt concrete layer successively, and wherein mix concrete layer inside is provided with deck paving steel mesh reinforcement and stitches stiffener continuously.This bridge deck continuous seam structure is stressed more reasonable, can accelerate the decay of plate-girder amplitude, effectively suppresses carrying out of crack.
Description
Technical field
The utility model relates to a kind of high safety durable type bridge floor and stitches technology continuously, is specifically related to a kind of bridge deck continuous seam structure.
Background technology
Many countries are from convenient construction in recent years, reduce construction costs, and ageing, the safety, the comfortableness that improve driving are set out, and fall over each other to have developed various forms of simply supported girder bridge bridge floor continuous structure, and from different perspectives, carry out analyzing and improve it.Such as Wright, George E Ramey Angela studies pave-load layer duty, proposes the 14 kinds of structural measures alleviating the continuous crack of bridge floor, wherein mainly considers the effect thickening concrete bridge deck; The function that Japan also has scholar to be out of shape by bridge floor continuous absorption, is divided into stretching absorbance type, flexible decentralized and flexible induction type bridge floor continuous structure to carry out research & design.
The numerous scholar of China and engineers, from theory analysis, in conjunction with Practical Project case, constantly make improvement design to bridge floor continuous structure.Such as Hu Baixue etc. utilize FEM-software ANSYS computational analysis Four types simply supported girder bridge bridge deck concrete crack to launch feature, and compare the superiority that place's presstressed reinforcing steel makes bridge floor continuous print structure; There is Wu Jun etc. to propose to increase cast-in-situ concrete wet joint by adopting in conjunction with practical engineering experience again, adopting high-quality or high-grade concrete method; Also there are Xi'an Municipal Engineering Design and Research Institute and Chang An University's joint research to design bridge floor partial continuous novel structure, i.e. embedded bar in freely-supported precast plate girder, and are welded as continuous structure in the later stage; In what country fair overpass bridge engineering, adopt CFRP muscle to replace reinforcing bar to the design of bridge floor continuous structure in addition; Jiangsu Province bridge stitches structure continuously and mostly comparatively is the arrangement of reinforcement increasing bridge floor continuous position place, and adopts cystosepiment and geotextiles to process space between plate.
The shortcoming of prior art mainly contains: it is definite value that bridge floor stitches scope of design continuously, and difference changes along with the change across footpath deck-molding across footpath and deck-molding Dun Ding hogging moment area scope, makes structure design unreasonable; Continuous seam concrete used is ordinary reinforced concrete, stressed comparatively large and under the frequent effect of the changing of the relative positions produced in vertical motion and the precast beam distortion of vehicle, will cause damaging oof bridge surface when the anti-fatigue performance of material reaches capacity; Continuous seam place adopts in presstressed reinforcing steel or freely-supported plate-girder and is welded as continuous structure, complicated construction technique after embedded bar, high to construction technical requirement.According to CFRP muscle, CFRP muscle shear resistance is not enough, still needs to use reinforcing bar jointly stressed in structure, and CFRP reinforcing bar has higher requirement to bond length and thickness of concrete cover; The geotextiles arranged on beam slab top, the geotextiles that easily vibrated when concreting damage, particularly bridge floor are stitched continuously is easily shaken and is split, and causes concrete to omit, and serious may make gap completely blocked and affect beam slab strain, even causes beam slab top swollen; The setting of continuous seam stiffener is equal length and arranges, cause the rigidity of structure of both sides, stiffener end position cross section to be suddenlyd change like this, easy stress is concentrated and easy to crack; After continuous seam cracking, crack just diffuses to asphalt pavement, reduces bridge floor outward appearance and comfortableness.The damage of asphalt mixture surfacing, accelerates the infiltration of the materials such as rainwater, and carbonation of concrete, chlorion are invaded and corrosion of steel bar, thus causes seam continuously to damage even more serious.
Utility model content
The purpose of this utility model is just to provide a kind of bridge deck continuous seam structure to solve the problem.
For solving the problems of the technologies described above, the utility model proposes a kind of bridge deck continuous seam structure, comprise bridge pier and the two boards beam being positioned at bridge pier end face, beam-ends seam is formed between two plate-girders, it is characterized in that: in described beam-ends seam, fill up damping rubber block, described plate-girder upper end arranges heated bitumen tack coat, described heated bitumen tack coat and described beam-ends seam place also arrange 3mm rubber spacer, described rubber spacer also arranges mix concrete layer successively, fibrous polyester Anti-crack layer and asphalt concrete layer, wherein mix concrete layer inside is provided with deck paving steel mesh reinforcement and stitches stiffener continuously.
Preferably, described deck paving steel mesh reinforcement indulges bridge to, direction across bridge and be vertically welded with stiffener to colligation on three directions, and described stiffener is in staggered distribution in described deck paving steel mesh reinforcement.
Preferably, described mix concrete layer comprises ordinary concrete pave-load layer and high performance concrete pave-load layer, described plate-girder thickness is Hm, mix concrete layer total length is 5Hm, above the plane that described two boards beam is formed, be respectively the ordinary concrete pave-load layer of the ordinary concrete pave-load layer of Hm, the high performance concrete pave-load layer of 3Hm and Hm from left to right, wherein said beam-ends seam is in the high performance concrete pave-load layer center of described 3Hm.
Preferably, described 3Hm high performance concrete pave-load layer center upper surface arranges one saw kerf, is filled with bitumastic in described saw kerf.
Preferably, described mix concrete layer and asphalt concrete layer are all by building formation.
Preferably, described heated bitumen tack coat is formed by twice spary.
The beneficial effect of technique scheme of the present utility model is:
Such scheme, refinement bridge floor stitches scope of design continuously, and compare different from footpath employing same design structure, seam is stressed more reasonable continuously; Adopt high-performance concrete material, bridge deck continuous seam structure bulk strength can be improved 10% ~ 20%, make the disease speed such as Chloride Attack, carbonation of concrete and corrosion of steel bar reduce 10% ~ 30%, shock resistance coefficient can improve more than 2.2 times; Bed course and damping rubber block are set, the vibrational energy of plate-girder vibration passing to bridge deck continuous seam structure can be reduced, the decay of plate-girder amplitude can also be accelerated.For 3 across 10 meters of bridges, only need to vibrate for 5 times, just amplitude can be decayed to less than 5%; Stagger and stiffener is set, make the rigidity of bridge deck continuous seam structure reduce 30%, reduce more than 10% with the common bridge deck pavement junction factor of stress concentration; Stitch continuously between the top of concrete of structure and asphalt mixture surfacing at bridge floor and paste fibrous polyester anti-cracking cloth, can effectively suppress carrying out of crack, make concrete reduce more than 20% to the impact of asphalt mixture surfacing; On the other hand the water isolating of fibrous polyester anti-cracking cloth prevents the infiltration of rainwater, can this disease of solution fundamentally.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the part B enlarged drawing in the utility model Fig. 1
Fig. 3 is the A-A face sectional view in the utility model Fig. 1;
Description of reference numerals:
1, bridge pier, 2, plate-girder, 3, bearing, 4, mix concrete layer, 5, rubber spacer, 6, asphalt concrete layer, 7, fibrous polyester Anti-crack layer, 8, stiffener, 81, stiffener, 82, No. two stiffeners, 83, No. three stiffeners, 9, deck paving steel mesh reinforcement, 10, damping rubber block, 11, saw kerf, 12, heated bitumen tack coat.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, the utility model executes a kind of bridge deck continuous seam structure that example provides, the two pieces of bearings 3 comprising bridge pier 1 and be positioned on bridge pier 1 end face, and the two boards beam 2 be positioned on two bearings 3, beam-ends seam is formed between two plate-girders 2, damping rubber block 10 is filled up in described beam-ends seam, plate-girder 2 upper end arranges heated bitumen tack coat 12, described heated bitumen tack coat 12 and described beam-ends seam place also arrange 3mm rubber spacer 5, the setting of this bump rubber 10 and rubber spacer 5 can reduce the vibrational energy of plate-girder 2 vibration passing to bridge deck continuous seam structure, the decay of plate-girder 2 amplitude can also be accelerated, separating vibration, absorb energy, and allow beam-ends to have the small changing of the relative positions, reduce the breakage caused due to vertical motion, rubber spacer 5 also arranges mix concrete layer 4, fibrous polyester Anti-crack layer and asphalt concrete layer 6 successively, wherein mix concrete layer 4 inside is provided with deck paving steel mesh reinforcement 9 and stiffener 8, the setting of described fibrous polyester Anti-crack layer 11 can make mix concrete layer 4 reduce more than 20% to the impact of asphalt mixture surfacing 6, and the carbonation of concrete that the materials such as rainwater can be stoped again to infiltrate along the crack of described asphalt concrete layer 6 cause in described mix concrete layer 4, chlorion invade and the disease such as corrosion of steel bar.Wherein asphalt concrete layer is all by building formation, and heated bitumen tack coat is formed by twice brushing.
More specifically, as shown in Figures 2 and 3, described deck paving steel mesh reinforcement 9 indulges bridge to, direction across bridge and be vertically welded with stiffener to colligation on these three directions, and described stiffener 8 is in staggered distribution in described deck paving steel mesh reinforcement 9, wherein said stiffener 8 comprise be arranged at vertical bridge to a stiffener 81, be arranged at direction across bridge No. two stiffeners 82 and be arranged at vertical No. three stiffeners 83.Setting like this can either meet stitches requirement of strength continuously, can reduce rigidity again, the stress concentration phenomenon of excessive generation of avoiding suddenling change.
In order to refinement bridge deck continuous seam structure scope of design, it is made to compare different from footpath employing same design structure, continuous seam structure stressed more reasonable, described mix concrete layer 4 comprises ordinary concrete pave-load layer and high performance concrete pave-load layer, and when described plate-girder thickness is Hm, mix concrete layer 4 total length is 5Hm, the ordinary concrete pave-load layer of Hm is respectively from left to right above the plane that described two boards beam 2 is formed, the high performance concrete pave-load layer of 3Hm and the ordinary concrete pave-load layer of Hm, wherein said beam-ends seam is in the high performance concrete pave-load layer center of described 3Hm.
Particularly, described 3Hm high performance concrete pave-load layer center upper surface arranges one saw kerf, is filled with bitumastic in saw kerf.Described mix concrete layer 4 is by building formation.
The formation method of the utility model embodiment specifically comprises the following steps:
1. be arranged on the bearing above bridge pier by two plate-girders, form beam-ends seam between described two plate-girders, reserve notch when described plate-girder is prefabricated, depth of rebate is 20 ~ 30mm, after plate-girder installation in position, repairs concordant;
2. described beam-ends seam is sternly filled in damping rubber block;
3. adjacent two across described two plate-girder top spray brush twice heated bitumen and the thick rubber spacer of 3mm is set in the described side of sewing on continuously, closely connected described plate-girder top;
Described 2. with the damping rubber block 3. arranged in step and rubber spacer can reduce the vibrational energy of plate-girder vibration passing to bridge deck continuous seam structure, the decay of plate-girder amplitude can also be accelerated, separating vibration, absorb energy, and allow beam-ends to have the small changing of the relative positions, reduce the breakage caused due to vertical motion;
4. to mat formation on described plate-girder top subsequently steel mesh reinforcement, bridge is indulged to, direction across bridge and vertically arranging some respectively on three directions stitches reinforcing rib continuously at described steel mesh reinforcement, described continuous seam reinforcing rib and described steel mesh reinforcement colligation firm welding, and some described continuous seam reinforcing ribs stagger and are arranged in described steel mesh reinforcement, steel mesh reinforcement and the reinforcing rib arranged that staggers can either meet and stitch requirement of strength continuously, rigidity can be reduced again, the stress concentration phenomenon of excessive generation of avoiding suddenling change;
5. high performance concrete and ordinary concrete is built to the described two plate-girder tops being equipped with described steel mesh reinforcement and reinforcing rib, form mix concrete layer, reach saw kerf after some strength until concrete and fill out bitumastic, by high performance concrete layer and the collocation of ordinary concrete layer and the setting of saw kerf, make this structure more can meet the stressed and life requirement at continuous seam place;
6. above described mix concrete layer, lay fibrous polyester anticracking layer of cloth and described mix concrete layer firm pasting, fibrous polyester Anti-crack layer can prevent concrete crack from diffusing to asphalt mixture surfacing, the diseases such as the carbonation of concrete that the materials such as rainwater can be stoped again to cause in the crack infiltration concrete of asphalt mixture surfacing, chlorion intrusion and corrosion of steel bar;
7. the surface course of last asphalt pave-load layer formation continuous seam structure above described fibrous polyester Anti-crack layer.
Particularly, step 5. in, described high performance concrete and the ordinary concrete length of described mix concrete layer are built as follows: described plate-girder thickness is Hm, it is 3Hm that described high performance concrete builds length, described ordinary concrete length is Hm, described beam-ends seam is positioned at described high performance concrete and builds center, and the described ordinary concrete that two segment length are Hm is built in its both sides, this method refinement bridge floor stitches scope of design continuously, bridge deck continuous seam structure is changed along with the change across footpath deck-molding across footpath and deck-molding Dun Ding hogging moment area scope according to difference, make structure design more reasonable, wherein, described saw kerf position is at upper surface place, described 3Hm high performance concrete pave-load layer center.
Such scheme, refinement bridge floor stitches scope of design continuously, and compare different from footpath employing same design structure, seam is stressed more reasonable continuously; Make the disease speed such as Chloride Attack, carbonation of concrete and corrosion of steel bar reduce 10% ~ 30%, shock resistance coefficient can improve more than 2.2 times; Bed course and damping rubber block can reduce the vibrational energy of plate-girder vibration passing to bridge deck continuous seam structure, can also accelerate the decay of plate-girder amplitude; Stagger and stiffener is set, make the rigidity of bridge deck continuous seam structure reduce 30%, reduce more than 10% with the common bridge deck pavement junction factor of stress concentration; Stitch continuously between the top of concrete of structure and asphalt mixture surfacing at bridge floor and paste fibrous polyester anti-cracking cloth, can effectively suppress carrying out of crack, make concrete reduce more than 20% to the impact of asphalt mixture surfacing; On the other hand the water isolating of fibrous polyester anti-cracking cloth prevents the infiltration of rainwater, can this disease of solution fundamentally.
The above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a bridge deck continuous seam structure, comprise bridge pier and the two boards beam being positioned at bridge pier end face, the beam-ends seam formed between two plate-girders, it is characterized in that: in described beam-ends seam, fill up damping rubber block, described plate-girder upper end arranges heated bitumen tack coat, described heated bitumen tack coat and described beam-ends seam place also arrange 3mm rubber spacer, described rubber spacer also arranges mix concrete layer, fibrous polyester Anti-crack layer and asphalt concrete layer successively, and wherein mix concrete layer inside is provided with deck paving steel mesh reinforcement and stitches stiffener continuously.
2. bridge deck continuous seam structure as claimed in claim 1, it is characterized in that, described deck paving steel mesh reinforcement indulges bridge to, direction across bridge and be vertically welded with stiffener to colligation on these three directions, and described stiffener is in staggered distribution in described deck paving steel mesh reinforcement.
3. bridge deck continuous seam structure as claimed in claim 1, it is characterized in that, described mix concrete layer comprises ordinary concrete pave-load layer and high performance concrete pave-load layer, described plate-girder thickness is Hm, mix concrete layer total length is 5Hm, above the plane that described two boards beam is formed, be respectively the ordinary concrete pave-load layer of the ordinary concrete pave-load layer of Hm, the high performance concrete pave-load layer of 3Hm and Hm from left to right, wherein said beam-ends seam is in the high performance concrete pave-load layer center of described 3Hm.
4. bridge deck continuous seam structure as claimed in claim 3, it is characterized in that, described 3Hm high performance concrete pave-load layer center upper surface arranges one saw kerf, is filled with bitumastic in described saw kerf.
5. bridge deck continuous seam structure as claimed in claim 1, it is characterized in that, described mix concrete layer and asphalt concrete layer are all by building formation.
6. bridge deck continuous seam structure as claimed in claim 1, it is characterized in that, described heated bitumen tack coat is formed by twice spary.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081707.XU CN204551254U (en) | 2015-02-05 | 2015-02-05 | A kind of bridge deck continuous seam structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520081707.XU CN204551254U (en) | 2015-02-05 | 2015-02-05 | A kind of bridge deck continuous seam structure |
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| CN204551254U true CN204551254U (en) | 2015-08-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297615A (en) * | 2015-11-20 | 2016-02-03 | 苏交科集团股份有限公司 | Device and method capable of restraining expansion joint disease of cable-supported bridge |
| CN111155424A (en) * | 2020-01-10 | 2020-05-15 | 南通大学 | Concrete bridge deck assembled telescopic device and manufacturing method thereof |
| 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 |
| CN114370005A (en) * | 2021-12-31 | 2022-04-19 | 山西省交通新技术发展有限公司 | Construction method of long-life bridge deck pavement structure for preventing bridge deck cracks |
-
2015
- 2015-02-05 CN CN201520081707.XU patent/CN204551254U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297615A (en) * | 2015-11-20 | 2016-02-03 | 苏交科集团股份有限公司 | Device and method capable of restraining expansion joint disease of cable-supported bridge |
| CN111155424A (en) * | 2020-01-10 | 2020-05-15 | 南通大学 | Concrete bridge deck assembled telescopic device and manufacturing method thereof |
| 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 |
| CN114370005A (en) * | 2021-12-31 | 2022-04-19 | 山西省交通新技术发展有限公司 | Construction method of long-life bridge deck pavement structure for preventing bridge deck cracks |
| CN114370005B (en) * | 2021-12-31 | 2023-07-21 | 山西省交通新技术发展有限公司 | Construction method of long-life bridge deck pavement structure for preventing bridge deck cracks |
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| 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: 20150812 |