CN202925415U - Steel bridge surface paving boundary processing structural layer - Google Patents
Steel bridge surface paving boundary processing structural layer Download PDFInfo
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- CN202925415U CN202925415U CN 201220525369 CN201220525369U CN202925415U CN 202925415 U CN202925415 U CN 202925415U CN 201220525369 CN201220525369 CN 201220525369 CN 201220525369 U CN201220525369 U CN 201220525369U CN 202925415 U CN202925415 U CN 202925415U
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Abstract
The utility model relates to a steel bridge surface paving boundary processing structural layer which is a modified epoxy resin mortar boundary processing structural layer which is formed by mixing a bi-component modified epoxy resin cementing agent with basalt aggregate at normal temperature, transporting, paving, grinding and maintaining, wherein the ductility of the bi-component modified epoxy resin cementing agent is 0.1%; the maximum nominal particle size of the basalt aggregate is 5mm; and the modified epoxy resin mortar boundary processing structural layer is 10-30mm in thickness. The modified epoxy resin mortar boundary processing structural layer is paved on an epoxy resin cementing macadam waterproof adhesive layer which is closely adhered to a steel bridge panel; and an asphalt concrete steel bridge surface paving surface layer is further paved on the modified epoxy resin mortar boundary processing structural layer. The steel bridge surface paving boundary processing structural layer provides a boundary like a cement concrete structure for steel bridge surface asphalt concrete pavement, and has good road properties of siding resistance, high temperature resistance and long service life. According to the steel bridge surface paving boundary processing structural layer, the solidifying time is easy to control, no high temperature construction is needed, the energy consumption is reduced, the waste gas is reduced, the construction and ecological environment are improved, and the construction is simple and convenient.
Description
Technical field
The utility model relates to the deck paving in a kind of bridge field, particularly relates to paving steel bridge deck interposed structure layer at the interface.
Background technology
The research of steel deck paving packing technique is a global problem, China has successively introduced epoxy asphalt concrete (epoxy asphalt concrete), cast asphalt concrete (Guss asphalt), these bridge deck pavement structure types of generally using in America and Europe and Japan and other countries are implemented also to obtain certain effect in China, but the case of earlier period damage is in various degree arranged also the time.Epoxy asphalt concrete and cast asphalt concrete bridge deck pavement structure are used in China larger limitation.
Also having an example is the Construction of Hangzhou Bay Cross-sea Bridge of attracting worldwide attention, the former design of mating formation of its offshore platform ring road Steel Bridge is to adopt U.S.'s epoxy asphalt pavement system, but runs into a technique difficult problem in the steel ramp bridge epoxy asphalt pavement system construction of maximum longitudinal grade 7.98%, smallest curve radius 72.0m.The technological requirement epoxy asphalt mixture must be before the bituminous epoxy water-proof tack coat solidifies decking and rolling, construction machinery produces larger horizontal component on large longitudinal gradient, can cause uncured bituminous epoxy water-proof tack coat shear failure, for controlling mixture segregation technological requirement bituminous epoxy maximum paving width 4.0m, 7.22m ramp bridge divide two width to pave, working load is zonal distribution, produces significant unbalance loading, affects the resistance to overturning of small curvature radius (72.0m) ring road.Be proven, U.S.'s epoxy asphalt pavement system is not suitable for mating formation for the ring road Steel Bridge of large longitudinal gradient (7.98%), small curve radius (72.0m).For this reason, special take Works of Hangzhou Bay Bridge as support, carry out " the large longitudinal gradient of Construction of Hangzhou Bay Cross-sea Bridge, small curve radius Steel Bridge mat formation project study ".The inventor is based on abundant for many years practical experience and professional knowledge, positive research and innovation in addition, to founding a kind of new paving steel bridge deck interposed structure layer at the interface, can improve general existing paving steel bridge deck interposed structure layer at the interface, make it have more practicality.Through constantly research, design, and after repeatedly studying and improving, finally create the utility model that has practical value.
Summary of the invention
Main purpose of the present utility model is to overcome the existing paving steel bridge deck defective of interposed structure layer existence at the interface, and provide a kind of paving steel bridge deck interposed structure layer at the interface, technical problem to be solved is to make steel bridge deck have the interface feature of cement concrete bridge deck plate, makes bituminous concrete and Steel Bridge Deck dispose deck by the modified epoxy mortar interface and forms good caking property.
A purpose of the present utility model also is, paving steel bridge deck interposed structure layer at the interface is provided, technical problem to be solved is that the modified epoxy mortar interface is disposed deck as one deck transition zone, in order to spread wheel load, and has the rigidity step on mechanics.
Of the present utility model also have a purpose to be, a kind of paving steel bridge deck interposed structure layer at the interface is provided, technical problem to be solved is to dispose deck as transition zone by the modified epoxy mortar interface, play temperature insulating, do not scald the modified epoxy bonding breakstone water-proof binding layer of bottom when paving the hard pitch compound, and do not make during one's term of military service sun lights shine the heat conduction of steel bridge case web to the softening asphalt concrete pavement of steel bridge case back plate hight temperature at steel bridge, reduce interface shearing-resistance and cut ability.
An another also purpose of the present utility model is, a kind of paving steel bridge deck interposed structure layer at the interface is provided, technical problem to be solved is to dispose deck as transition zone by the modified epoxy mortar interface, play mass action, with modified epoxy bond spread on the breakstone water-proof binding layer single, disperse the rubble integration, and consist of whole effectively waterproofing course with modified epoxy bonding breakstone water-proof binding layer, guarantee the stable water proofing property of structural system.
The purpose of this utility model also is to provide a kind of paving steel bridge deck interposed structure layer at the interface, problem to be solved is the modified epoxy mortar mixture cold mixing cold-application that is modified epoxy mortar interface disposal deck, do not need construction at high temperature, reduced energy consumption, reduce waste gas, improve construction and ecological environment.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.the paving steel bridge deck that foundation the utility model proposes is the interposed structure layer at the interface, wherein said paving steel bridge deck is the interposed structure layer at the interface, it is the basalt aggregate by bi-component modified epoxy cementitious matter and the nominal maximum aggregate size 5mm of elongation per unit length 1 ‰, thickness is that the modified epoxy mortar interface of 15-30mm is disposed deck, this modified epoxy mortar interface is disposed the deck close proximity and is mated formation on the modified epoxy bonding breakstone water-proof binding layer of being close on steel bridge deck, and be placed between steel bridge deck asphalt concrete pavement layer and epoxy bond breakstone water-proof binding layer, dispose on deck again the close proximity steel bridge deck asphalt concrete pavement layer of mating formation at this modified epoxy mortar interface.
Aforesaid paving steel bridge deck is the interposed structure layer at the interface, and wherein said steel bridge deck asphalt concrete pavement layer and modified epoxy mortar interface on this modified epoxy mortar interface is disposed deck disposed sprinkling adhesion coating pitch between deck.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.Foundation
Paving steel bridge deck of the present utility model interposed structure layer construction technology at the interface is first to carry out the construction of modified epoxy bonding breakstone water-proof binding layer, carry out again the modified epoxy mortar interface and dispose the deck construction, carry out at last the construction of asphalt concrete pavement deck.
Wherein said modified epoxy mortar interface dispose the deck construction technology be through normal temperature mix and stir, pave, roll, maintenance forms, concrete step is as follows:
Step 1: mix and stir transportation
The modified epoxy mortar mixture comprises 0-3mm and two kinds of basalt aggregate of 3-5mm, and A, B bi-component modified epoxy sizing material, two kinds of Weighing liftings respectively of gathering materials are fed into mix pot, with the two group Weighings of modified epoxy A, B, be promoted to and mix pot, dry mixing 10s to be gathered materials pours sizing material wet-mixing 60s into, the cold mixing modified epoxy mortar mixture that has has mixed and stirred is directly put into the haul truck be transported to paver;
Step 2: pave
After modified epoxy bonding breakstone water-proof binding layer was fixed, with the modified epoxy mortar mixture that one or more paver full width paves and mixed and stirred, the speed of paving was controlled at 2-3m/min, and the car material time of paving is no more than 30min; Paving thickness adopts away equalizer bar or walks the piston shoes mode and control, and guarantees the thickness 10-30mm of cold mixing modified resin mortar mixture;
Step 3: roll
Road roller is followed paver and is rolled, and adopts the halo static pressure 1～2 time, more multiple the pressure adopts rubber tire to press 3-4 time; Roll and adopt segmentation to control, roll length consistent with the per car material length that paves, the every period of rolling is no more than 10～15min and rolls from low to high, immediately following pressing slowly; Roll and forbid the mixed liquid such as watering, diesel oil, used oil, unification to adopt vegetable oil as sticking-proof wheels oil, brushing surface of tyre roller in process;
Step 4: sealing health
After grinding forming to be paved, standing wait cold mixing modified epoxy mortar mixture to complete the Chemical Physics curing reaction, standing protecting 7 days phases forbids comprising all vehicle pass-throughs of work car two.
The utility model then overlays one deck modified epoxy mortar interface and disposes deck on the basis of modified epoxy bonding breakstone water-proof binding layer.In building trade, nominal maximum aggregate size is called sand less than or equal to gathering materials of 5mm, the gelling mix of Ji Liao＜=5mm is called mortar.In the paving technical field, the epoxide-resin glue ramming material that will check with the bitumen for road use index is called retinasphal (resin asphalt), also claims the retinasphal compound with epoxy resin mortar.Here will meet " epoxy resin mortar tecnical regulations " mortar (DL/T5193-2004), although the utility model has still been continued to use the appellation of modified epoxy mortar, the mat formation modified epoxy mortar of disposing deck is that the difference of essence is arranged with above-mentioned material but the utility model is applied to the Steel Bridge Deck interface, and modified epoxy mortar described in the utility model is through modification and makes its elongation per unit length reach 1 ‰.
Steel bridge deck is orthotropic plate, under the wheel load effect, the stressed bending of steel bridge deck alternately, this just requires epoxy resin mortar modification to rigidity the distortion dipping and heaving, make its deformation energy follow the distortion of steel bridge deck, its elongation per unit length is realized by modified epoxy.paving steel bridge deck modified epoxy mortar interface handles layer, the steel bridge deck asphalt concrete pavement structure is played important effect, one, the rigidity transition, because the rigidity great disparity of steel plate and asphalt concrete pavement layer is huge, therefore, modified epoxy mortar transition zone is set between steel plate and asphalt concrete pavement layer, provides the rigidity step for being out of shape the continuous mechanics principle that waits, they are two years old, heat insulation transition zone, asphalt concrete pavement layer mixture laying temperature is up to 170 ℃, epoxy bond breakstone water-proof layer is burnt boiling hot aging, main is that operation phase steel case web Exposure to Sunlight thermal conductance is to steel case back plate, the asphalt concrete pavement near-bottom temperature that contacts with steel bridge deck is raise, thereby reduce anti-shearing deformability, the heat insulation transition zone of modified epoxy mortar can prevent effectively that the hard pitch concrete from scalding aging to burning of epoxy bond macadam, prevent from runing the softening asphalt concrete pavement layer of phase steel case web Exposure to Sunlight heat conduction and and shear resistance falls, its three, stable waterproof system, the modified epoxy screed is epoxy bond rubble integration single, that disperse, and consists of stable waterproof system together with modified epoxy mortar water-proof tack coat.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, the utility model paving steel bridge deck interposed structure layer and construction technology at the interface can reach suitable technological progress and practicality, and has the extensive value on industry, and it has following advantages at least:
1, paving steel bridge deck of the present utility model interposed structure layer at the interface, high temperature resistant, water-fast damage, endurance do not produce shearing slip, are very suitable for practicality, thereby more are suitable for practicality and have value on industry.
2, paving steel bridge deck of the present utility model interposed structure layer at the interface, as transition zone, can spread wheel load, and have the rigidity step on mechanics.The poor rigidity distance that it can eliminate steel plate and steel bridge deck asphalt concrete pavement layer can be transmitted the transmission load on steel bridge deck asphalt concrete pavement layer surface in a wider context, guarantees that steel bridge deck can participate in mat formation stressed.
3, paving steel bridge deck of the present utility model interposed structure layer at the interface, as transition zone, play temperature insulating, do not scald the modified epoxy bonding breakstone water-proof binding layer of bottom when paving the hard pitch compound, and do not make during one's term of military service sun lights shine the heat conduction of steel bridge case web to the softening asphalt concrete pavement of steel bridge case back plate hight temperature at steel bridge, cut ability and reduce interface shearing-resistance.
4, paving steel bridge deck of the present utility model interposed structure layer at the interface, as transition zone, the spread on the breakstone water-proof binding layer of modified epoxy being bondd single, disperse the rubble integration, and consist of whole effectively waterproofing course with modified epoxy bonding breakstone water-proof binding layer, guarantee the stable water proofing property of structural system.
5, paving steel bridge deck of the present utility model interposed structure layer at the interface, hardening time is easy to control, easy construction.
6, paving steel bridge deck of the present utility model at the interface interposed structure layer construction technology be the cold mixing cold-application, all do not need construction at high temperature, reduce energy consumption, reduce waste gas, improve construction and ecological environment.
7, paving steel bridge deck of the present utility model interposed structure layer at the interface, material price is cheap, easily construction, manufacturing cost reduces relatively, thereby can significantly reduce costs, increase economic efficiency, on the practicality of using and cost benefit, really meet industry development fully required, quite have industrial utilization
In sum, the paving steel bridge deck of the utility model novelty is the interposed structure layer at the interface, has good high temperature resistant, water-fast damage, fatigue performance, do not produce shearing slip, have the rigidity step and distribute wheel load, have temperature insulating, and hardening time is easy to control, easy construction.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of manual, and for above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the utility model the first example structure schematic diagram;
Wherein
1: the steel bridge deck asphalt concrete pavement layer
2: the modified epoxy mortar interface is disposed deck
3, modified epoxy bonding breakstone water-proof binding layer
4, steel bridge deck
The specific embodiment
Be to reach technological means that predetermined goal of the invention takes and effect below in conjunction with accompanying drawing and preferred embodiment for further setting forth the utility model, to according to the paving steel bridge deck that the utility model proposes interposed structure layer at the interface, its specific features and effect thereof are described in detail as follows.
Embodiment 1:
See also shown in Figure 1, the paving steel bridge deck of the utility model preferred embodiment is the interposed structure layer at the interface, wherein said modified epoxy mortar interface dispose deck 2 be by the basalt aggregate of A, B bi-component modified epoxy cementitious matter and the nominal maximum aggregate size 5mm of elongation per unit length 1 ‰ through normal temperature mix and stir, transport, pave, roll, maintenance forms, thickness is 15mm-30mm.Thickness at the present embodiment is 15mm.This modified epoxy mortar interface is disposed deck 2 and is close on epoxy bond breakstone water-proof binding layer 3, and between epoxy bond breakstone water-proof binding layer 3 and steel bridge deck asphalt concrete pavement layer 1.Dispose on deck 2 again the close proximity steel bridge deck asphalt concrete pavement layer 1 of mating formation at this modified epoxy mortar interface.Steel bridge deck asphalt concrete pavement layer 1 on this modified epoxy mortar interface is disposed deck 2 and modified epoxy mortar interface are disposed between deck 3 can spray adhesion coating pitch.
The paving steel bridge deck of the utility model preferred embodiment construction technology of interposed structure layer at the interface is the pavement construction that first carries out epoxy bond breakstone water-proof binding layer 3 on steel bridge deck 4, then carry out the modified epoxy mortar interface and dispose the pavement construction of deck 2 on epoxy bond breakstone water-proof binding layer 3, at last, dispose at the modified epoxy mortar interface pavement construction that carries out steel bridge deck asphalt concrete pavement layer 1 on deck 2.
Wherein, the step of described modified epoxy mortar interface disposal deck construction technology is as follows:
Step 1: mix and stir transportation.The modified epoxy mortar mixture comprises 0-3mm and two kinds of basalt aggregate of 3-5mm, and A, B bi-component modified epoxy sizing material, two kinds of Weighing liftings respectively of gathering materials are fed into mix pot, with modified epoxy A, B bi-component another name metering, be promoted to and mix pot, dry mixing 10s to be gathered materials pours sizing material wet-mixing 60s into, the cold mixing modified epoxy mortar mixture that has has mixed and stirred is directly put into the haul truck be transported to paver;
Step 2: pave.After modified epoxy bonding breakstone water-proof binding layer 3 was fixed, with the modified epoxy mortar mixture that one or more paver full width paves and mixed and stirred, the speed of paving was controlled at 2-3m/min, and the car material time of paving is no more than 30min; Paving thickness adopts away equalizer bar or walks the piston shoes mode and control, and guarantees the thickness 10-30mm of cold mixing modified resin mortar mixture;
Step 3: roll.Road roller is followed paver and is rolled, and adopts the halo static pressure 1～2 time, more multiple the pressure adopts rubber tire to press 3-4 time; Roll and adopt segmentation to control, roll length consistent with the per car material length that paves, the every period of rolling is no more than 10～15min and rolls from low to high, immediately following pressing slowly; Roll and forbid the mixed liquid such as watering, diesel oil, used oil, unification to adopt vegetable oil as sticking-proof wheels oil, brushing surface of tyre roller in process;
Step 4: sealing health.After grinding forming to be paved, standing wait cold mixing modified epoxy mortar mixture complete the Chemical Physics curing reaction, 7 days standing curing times, forbid comprising all vehicle pass-throughs of work car two.
The 2nd embodiment:
The paving steel bridge deck of the utility model preferred embodiment is the interposed structure layer at the interface, and it is 25mm that the modified epoxy mortar interface is disposed deck 2.Other structure is with embodiment 1.
The 3rd embodiment:
The paving steel bridge deck of the utility model preferred embodiment is the interposed structure layer at the interface, and it is 30mm that the modified epoxy mortar interface is disposed deck 2.Other structure is with embodiment 1.
the above, it is only preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (2)
1. paving steel bridge deck interposed structure layer at the interface, it is characterized in that described paving steel bridge deck at the interface the interposed structure layer be basalt aggregate by bi-component modified epoxy cementitious matter and the nominal maximum aggregate size 5mm of elongation per unit length 1 ‰, thickness is that the modified epoxy mortar interface of 15-30mm is disposed deck (2), this modified epoxy mortar interface is disposed deck (2) close proximity and is mated formation on the modified epoxy bonding breakstone water-proof binding layer (3) of being close on steel bridge deck (4), and be placed between steel bridge deck asphalt concrete pavement layer (1) and epoxy bond breakstone water-proof binding layer (3), dispose on deck (2) again the close proximity steel bridge deck asphalt concrete pavement layer (1) of mating formation at this modified epoxy mortar interface.
2. paving steel bridge deck according to claim 1 interposed structure layer at the interface is characterized in that describedly being positioned at the steel bridge deck asphalt concrete pavement layer (1) that this modified epoxy mortar interface disposes above deck (2) and disposing sprinkling adhesion coating pitch between deck (2) with modified epoxy mortar interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525369 CN202925415U (en) | 2012-10-12 | 2012-10-12 | Steel bridge surface paving boundary processing structural layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525369 CN202925415U (en) | 2012-10-12 | 2012-10-12 | Steel bridge surface paving boundary processing structural layer |
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| CN202925415U true CN202925415U (en) | 2013-05-08 |
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| CN 201220525369 Expired - Lifetime CN202925415U (en) | 2012-10-12 | 2012-10-12 | Steel bridge surface paving boundary processing structural layer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900003A (en) * | 2012-10-12 | 2013-01-30 | 中交第三公路工程局有限公司 | Steel bridge deck pavement interface handling structure layer and construction process |
| CN104652270A (en) * | 2015-02-11 | 2015-05-27 | 上海市政工程设计研究总院（集团）有限公司 | Bridge deck pavement method for orthotropic steel bridge |
-
2012
- 2012-10-12 CN CN 201220525369 patent/CN202925415U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900003A (en) * | 2012-10-12 | 2013-01-30 | 中交第三公路工程局有限公司 | Steel bridge deck pavement interface handling structure layer and construction process |
| CN104652270A (en) * | 2015-02-11 | 2015-05-27 | 上海市政工程设计研究总院（集团）有限公司 | Bridge deck pavement method for orthotropic steel bridge |
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Granted publication date: 20130508 |
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| CX01 | Expiry of patent term |