CN210216147U - Steel bridge deck and steel bridge - Google Patents
Steel bridge deck and steel bridge Download PDFInfo
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- CN210216147U CN210216147U CN201921057964.4U CN201921057964U CN210216147U CN 210216147 U CN210216147 U CN 210216147U CN 201921057964 U CN201921057964 U CN 201921057964U CN 210216147 U CN210216147 U CN 210216147U
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Abstract
The utility model discloses a steel bridge deck plate and steel bridge. The steel bridge deck comprises a steel bridge deck body, wherein an epoxy resin anticorrosive layer is arranged on the upper surface of the steel bridge deck body; a methacrylic resin waterproof layer is arranged on the upper surface of the epoxy resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with a thermoplastic acrylic resin bonding layer; the upper surface of the thermoplastic acrylic resin bonding layer is provided with an asphalt concrete paving layer. By adopting the steel bridge deck, the failure of the anti-corrosion primer caused by the damage of the waterproof layer can be avoided.
Description
Technical Field
The utility model relates to a steel bridge panel and steel bridge.
Background
Steel bridge deck has been an international problem, especially for some large span bridges. The steel bridge deck has the main problems that the rigidity of the steel bridge deck is small, the deformation is large, the influence of temperature is serious, and particularly, under the action of horizontal shear stress, a pavement layer is easy to deform. At present, the following damages mainly occur to the steel bridge deck: rutting, cracking, delamination and slippage, and steel deck corrosion, among others.
In order to prevent the damage, a waterproof bonding layer is paved on the steel bridge deck slab and the thickness range of each layer is controlled, wherein the waterproof bonding layer is generally divided into asphalt and reactive resins, and the asphalt waterproof bonding layer has the defects of high temperature, easy softening, insufficient shearing resistance, easy push, delamination and the like, so that the application range of the asphalt waterproof bonding layer is limited; the reactive resins have relatively good paving application effect in domestic steel bridge decks, and are typically represented by methacrylic resin waterproof systems and epoxy asphalt waterproof systems.
At present, the pavement scheme of a methacrylic resin waterproof bonding layer, cast asphalt concrete and modified asphalt SMA is adopted in domestic steel bridge deck plates. The methacrylic resin waterproof bonding layer in the paving scheme has been successfully applied for many years, and the technical performance of the MMA waterproof bonding layer for paving the steel bridge deck is continuously improved from Eliminator imported from UK to the internally independently researched and produced MMA waterproof bonding layer. From the analysis of the application effect of the methacrylic resin waterproof bonding layer, the methacrylic resin waterproof bonding layer shows good integrity on most bridges, but has a destructive phenomenon on a part of bridges. The methacrylic resin waterproof bonding layer mainly comprises two layers of methacrylic resin for waterproof and bonding effects, the damage of the methacrylic resin waterproof bonding layer is mainly concentrated on the delamination of two layers of methacrylic resin waterproof films, and the failure of an anticorrosion primer causes the rusting of a steel plate after the methacrylic resin waterproof films are damaged.
CN207047689U discloses a novel reactive resin steel bridge deck waterproof pavement structure, which comprises a long-acting anticorrosion primer layer, a reactive methacrylic resin waterproof layer, a reactive resin bonding layer and an asphalt mixture layer which are paved from bottom to top. The paving structure adopts the anticorrosive layer and the bonding layer (the modified acrylic resin anticorrosive layer and the reactive acrylate resin bonding layer; the modified epoxy resin anticorrosive layer and the secondary curing epoxy resin bonding layer) with similar properties, so that the delamination or the damage of the waterproof layer can not be effectively avoided. CN203440752U discloses a steel bridge deck, by from top to bottom include steel bridge deck, anticorrosive coating, waterproof tie coat and the layer of mating formation in proper order. The pavement structure adopts the epoxy zinc-rich anticorrosive coating, but the waterproof layer and the bonding layer are integrated into a methacrylic resin binder layer, so that the delamination or damage of the waterproof layer can not be effectively avoided. CN203923901U discloses a steel bridge deck poured resin concrete pavement structure, in which the bonding layer is made of asphalt-based resin or methyl methacrylate resin, and the corrosion-resistant layer is made of epoxy zinc-rich paint, so that delamination or damage of the waterproof layer cannot be effectively avoided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steel bridge deck board can avoid the waterproof layer damaged to lead to anticorrosive priming paint inefficacy, and then avoids the steel sheet to rust. Further, the utility model discloses can reduce the risk of waterproof layer delaminating.
Another object of the present invention is to provide a steel bridge with better durability.
On one hand, the utility model provides a steel bridge deck, which comprises a steel bridge deck body, wherein the upper surface of the steel bridge deck body is provided with an epoxy resin anticorrosive layer; a methacrylic resin waterproof layer is arranged on the upper surface of the epoxy resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with a thermoplastic acrylic resin bonding layer; the upper surface of the thermoplastic acrylic resin bonding layer is provided with an asphalt concrete paving layer.
According to the steel bridge deck plate of the utility model, preferably, the thickness of the epoxy resin anticorrosive coating is 0.25-0.5 mm; the thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm; the thickness of the thermoplastic acrylic resin bonding layer is 0.1-0.3 mm.
On the other hand, the utility model provides a steel bridge deck, which comprises a steel bridge deck body, wherein the upper surface of the steel bridge deck body is provided with a polyurethane resin anticorrosive coating; a methacrylic resin waterproof layer is arranged on the upper surface of the polyurethane resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with a thermoplastic acrylic resin bonding layer; the upper surface of the thermoplastic acrylic resin bonding layer is provided with an asphalt concrete paving layer.
According to the steel bridge deck of the present invention, preferably, the thickness of the polyurethane resin anticorrosive coating is 0.25-0.5 mm; the thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm; the thickness of the thermoplastic acrylic resin bonding layer is 0.1-0.3 mm.
On the other hand, the utility model provides a steel bridge deck, which comprises a steel bridge deck body, wherein the upper surface of the steel bridge deck body is provided with a polyurethane resin anti-corrosion layer; a methacrylic resin waterproof layer is arranged on the upper surface of the polyurethane resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with an epoxy resin bonding layer; the upper surface of the epoxy resin bonding layer is provided with an asphalt concrete paving layer.
According to the steel bridge deck of the present invention, preferably, the thickness of the polyurethane resin anticorrosive coating is 0.25-0.5 mm; the thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm; the thickness of the epoxy resin bonding layer is 0.1-0.3 mm.
According to the utility model discloses a steel bridge deck, preferably, the asphalt concrete pavement layer is including the pouring type asphalt concrete layer that thickness is 20 ~ 100mm and the pitch mastic broken stone concrete layer that thickness is 20 ~ 100 mm.
According to the utility model discloses a steel bridge deck, preferably, the asphalt concrete layer of mating formation is 20 ~ 100 mm's pouring type asphalt concrete layer and 20 ~ 100 mm's epoxy asphalt concrete layer including thickness.
According to the steel bridge deck of the present invention, preferably, the roughness of the steel bridge deck is not less than 80 μm.
Furthermore, the utility model also provides a steel bridge, including the crane span structure and with the crane span structure be connected as above steel bridge panel.
The utility model discloses an anticorrosive coating adopts epoxy coating or polyurethane resin coating and tie coat to adopt thermoplasticity acrylic resin coating, perhaps the anticorrosive coating adopts polyurethane resin coating and tie coat to adopt epoxy coating. Therefore, the problem that the steel plate rusts due to the failure of the anti-corrosion primer when the waterproof layer is damaged can be solved. According to the utility model discloses preferred technical scheme selects the each layer of suitable thickness, can reduce waterproof layer delaminating risk, improves steel bridge panel's wholeness ability.
Drawings
Fig. 1 is a schematic structural view of a steel deck plate of the present invention.
Wherein, 1-the steel bridge deck plate body; 2-an anticorrosive layer; 3-waterproof layer; 4-a tie layer; 5-asphalt concrete pavement layer.
Detailed Description
The present invention will be further described with reference to the following specific examples, but the scope of the present invention is not limited thereto.
< Steel bridge deck >
The utility model discloses a steel decking includes the steel decking body and paves the layer. The pavement layer comprises an anti-corrosion layer, a waterproof layer, a bonding layer, an asphalt concrete pavement layer and the like. An anticorrosive layer is arranged on the upper surface of the steel bridge deck body; the upper surface of the anticorrosive layer is provided with a waterproof layer; the upper surface of the waterproof layer is provided with a bonding layer; the upper surface of the bonding layer is provided with an asphalt concrete pavement layer. The utility model discloses a combination of specific anticorrosive coating and tie coat to can effectively avoid the waterproof layer damaged or delaminating.
The utility model discloses in, carry out sandblast rust cleaning technology to the steel bridge deck plate, the steel bridge deck plate does not have attachments such as grease, dirt, cinder and iron rust. The cleanliness Sa of the steel bridge deck is more than or equal to grade 2.5. The roughness of the steel bridge deck plate is more than or equal to 80 microns, preferably more than or equal to 100 microns, and more preferably 150-100 microns. Thus, the pavement layer is favorably bonded with the steel bridge deck, and the waterproof layer is prevented from delaminating.
And (3) coating the anticorrosive coating on the steel bridge deck by adopting a roller coating or airless spraying process, and finishing by one-time coating. And after the coating is cured, obtaining the durable anticorrosive coating. The thickness of the anticorrosive layer can be 0.25-0.5 mm, preferably 0.3-0.45 mm, and more preferably 0.35-0.4 mm. The anticorrosive coating can be an epoxy resin anticorrosive coating or a polyurethane resin anticorrosive coating. The epoxy resin anticorrosive layer can adopt thick coating type solvent-free epoxy resin. The coating weight of the epoxy resin is 0.3-0.6 kg/m2And the neutral salt spray resistance test is not less than 1000 h.
And (3) spraying the methacrylic resin waterproof layer by adopting a high-pressure airless spraying process, wherein the spraying is finished at one time. And (5) finishing curing to obtain the waterproof layer. The thickness of the waterproof layer is 1.2-4.2 mm, preferably 2-4 mm, and more preferably 2-3 mm. The waterproof layer is a methacrylic resin waterproof layer. In order to reduce the risk of interface delamination, the spraying process adopts one-step spraying forming; the amount of the methacrylic resin is 2.5-4.5 kg/m2。
And coating the bonding layer by adopting a brush coating or roller coating process. After drying, the adhesive layer is obtained. The thickness of the bonding layer is 0.1-0.3 mm, preferably 0.15-0.25 mm, and more preferably 0.2-0.25 mm. The adhesive layer is a thermoplastic acrylic resin adhesive layer or an epoxy resin adhesive layer. The thermoplastic acrylic adhesive layer may contain a thermosetting acrylic resin, but a thermoplastic acrylic resin is a main component. The amount of the thermoplastic acrylic resin may be 0.15 to 0.45kg/m2。
And paving an asphalt concrete pavement layer according to the construction specification requirement. In certain embodiments, the asphalt concrete pavement layer comprises a cast asphalt concrete layer with a thickness of 20-100 mm and an asphalt mastic macadam concrete layer with a thickness of 20-100 mm. Preferably, the asphalt concrete pavement layer comprises a cast asphalt concrete layer with the thickness of 20-60 mm and an asphalt mastic broken stone concrete layer with the thickness of 20-60 mm. More preferably, the asphalt concrete pavement layer comprises a cast asphalt concrete layer with the thickness of 30-50 mm and an asphalt mastic broken stone concrete layer with the thickness of 30-40 mm.
In certain embodiments, the asphalt concrete pavement layer comprises a cast asphalt concrete layer with a thickness of 20-100 mm and an epoxy asphalt concrete layer with a thickness of 20-100 mm. Preferably, the asphalt concrete pavement layer comprises a cast asphalt concrete layer with the thickness of 20-60 mm and an epoxy asphalt concrete layer with the thickness of 20-60 mm. More preferably, the asphalt concrete pavement layer comprises a cast asphalt concrete layer with the thickness of 30-60 mm and an epoxy asphalt concrete layer with the thickness of 30-40 mm.
According to one embodiment of the utility model, the steel bridge deck of the utility model comprises a steel bridge deck body, and the upper surface of the steel bridge deck body is provided with an epoxy resin anticorrosive coating; a methacrylic resin waterproof layer is arranged on the upper surface of the epoxy resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with a thermoplastic acrylic resin bonding layer; the upper surface of the thermoplastic acrylic resin bonding layer is provided with an asphalt concrete paving layer.
The thickness of the epoxy resin anticorrosive layer can be 0.25-0.5 mm, preferably 0.3-0.45 mm, and more preferably 0.35-0.4 mm. The thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm, preferably 2-4 mm, and more preferably 2-3 mm. The thickness of the thermoplastic acrylic resin bonding layer is 0.1-0.3 mm, preferably 0.15-0.25 mm, and more preferably 0.2-0.25 mm. By adopting each layer with the thickness, the integral performance of the steel bridge deck can be improved, and the delamination of a waterproof layer is effectively avoided.
According to another embodiment of the present invention, the steel bridge deck of the present invention comprises a steel bridge deck body, wherein the upper surface of the steel bridge deck body is provided with a polyurethane resin anticorrosive coating; a methacrylic resin waterproof layer is arranged on the upper surface of the polyurethane resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with a thermoplastic acrylic resin bonding layer; the upper surface of the thermoplastic acrylic resin bonding layer is provided with an asphalt concrete paving layer.
The thickness of the polyurethane resin anticorrosive layer can be 0.25-0.5 mm, preferably 0.3-0.45 mm, and more preferably 0.35-0.4 mm; the thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm, preferably 2-4 mm, and more preferably 2-3 mm; the thickness of the thermoplastic acrylic resin bonding layer is 0.1-0.3 mm, preferably 0.15-0.25 mm, and more preferably 0.2-0.25 mm. By adopting each layer with the thickness, the integral performance of the steel bridge deck can be improved, and the delamination of a waterproof layer is effectively avoided.
According to another embodiment of the present invention, the steel bridge deck of the present invention comprises a steel bridge deck body, and the upper surface of the steel bridge deck body is provided with a polyurethane resin anticorrosive coating; a methacrylic resin waterproof layer is arranged on the upper surface of the polyurethane resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with an epoxy resin bonding layer; the upper surface of the epoxy resin bonding layer is provided with an asphalt concrete paving layer.
The thickness of the polyurethane resin anticorrosive layer can be 0.25-0.5 mm, preferably 0.3-0.45 mm, and more preferably 0.35-0.4 mm; the thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm, preferably 2-4 mm, and more preferably 2-3 mm; the thickness of the epoxy resin bonding layer is 0.1-0.3 mm, preferably 0.15-0.25 mm, and more preferably 0.2-0.25 mm. By adopting each layer with the thickness, the integral performance of the steel bridge deck can be improved, and the delamination of a waterproof layer is effectively avoided.
< Steel bridge >
The utility model discloses a steel bridge includes crane span structure and steel bridge panel. The steel bridge deck is connected with the bridge frame. The structure of the bridge is not particularly limited; the construction of the steel deck plate is as described above.
Example 1
Fig. 1 is a schematic structural view of a steel deck plate of the present invention. The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is an epoxy resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.25 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm, a cast asphalt concrete layer with the thickness of 40mm and an asphalt mastic gravel concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 2
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is an epoxy resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 3
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is an epoxy resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.3 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 4
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is an epoxy resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 3.5 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.3 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 5
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is an epoxy resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.25 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a pouring asphalt concrete layer with the thickness of 30mm and an epoxy asphalt concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Examples 6 to 10
The asphalt concrete pavement layer 5 comprises a pouring type asphalt concrete layer with the thickness of 25mm and an epoxy asphalt concrete layer with the thickness of 30mm from bottom to top, and the rest conditions are the same as those in the embodiments 1-5.
Example 11
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.25 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 12
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 13
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.3 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 14
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 3.5 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.3 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 15
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.25 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is a thermoplastic acrylic adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an epoxy asphalt concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Examples 16 to 20
The asphalt concrete pavement layer 5 comprises a pouring type asphalt concrete layer with the thickness of 25mm and an epoxy asphalt concrete layer with the thickness of 30mm from bottom to top, and the rest conditions are the same as those in the embodiments 1-5.
Example 21
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.25 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is an epoxy adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 22
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is an epoxy adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 23
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is an epoxy adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.3 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 24
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.5 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 3.5 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is an epoxy adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.3 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an asphalt mastic broken stone concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Example 25
The steel bridge deck of the embodiment comprises a steel bridge deck body 1; an anticorrosive layer 2; a waterproof layer 3; a bonding layer 4 and an asphalt concrete pavement layer 5. The upper surface of steel decking body 1 is provided with anticorrosive coating 2. The steel bridge deck 1 is treated by a sand blasting rust removal process, and the roughness is more than or equal to 80 mu m. The anticorrosive layer 2 is a polyurethane resin anticorrosive layer and is made of materials known in the art. The thickness of the anticorrosive layer 2 is 0.25 mm. The upper surface of the anticorrosive coating 2 is provided with a waterproof layer 3. The waterproof layer 3 is a methacrylic resin waterproof layer and is made of materials known in the art. The thickness of the waterproof layer is 2 mm. The waterproof layer 3 can be sprayed on the upper surface of the anticorrosive layer 2 by adopting a high-pressure airless spraying process. The upper surface of the waterproof layer 3 is provided with an adhesive layer 4. The adhesive layer 4 is an epoxy adhesive layer and is made of a material known in the art. The thickness of the adhesive layer was 0.2 mm. The upper surface of the bonding layer 4 is provided with an asphalt concrete pavement layer 5. The asphalt concrete pavement layer 5 comprises a cast asphalt concrete layer with the thickness of 30mm and an epoxy asphalt concrete layer with the thickness of 40mm from bottom to top. The concrete layer is made of materials known in the art.
Examples 26 to 30
The asphalt concrete pavement layer 5 comprises a pouring type asphalt concrete layer with the thickness of 25mm and an epoxy asphalt concrete layer with the thickness of 30mm from bottom to top, and the rest conditions are the same as those in the embodiments 1-5.
Examples 31 to 60
The steel bridge of the utility model comprises a bridge frame and a steel bridge deck; the steel bridge deck is connected with the bridge frame. The structures of the steel bridge deck are respectively as described in embodiments 1 to 30.
The present invention is not limited to the above embodiments, and any variations, modifications, and substitutions that may occur to those skilled in the art may be made without departing from the spirit of the present invention.
Claims (10)
1. The steel bridge deck is characterized by comprising a steel bridge deck body, wherein an epoxy resin anticorrosive layer is arranged on the upper surface of the steel bridge deck body; a methacrylic resin waterproof layer is arranged on the upper surface of the epoxy resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with a thermoplastic acrylic resin bonding layer; the upper surface of the thermoplastic acrylic resin bonding layer is provided with an asphalt concrete paving layer.
2. The steel deck plate as claimed in claim 1, wherein the epoxy resin anticorrosive layer has a thickness of 0.25 to 0.5 mm; the thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm; the thickness of the thermoplastic acrylic resin bonding layer is 0.1-0.3 mm.
3. A steel bridge deck is characterized by comprising a steel bridge deck body, wherein a polyurethane resin anticorrosive layer is arranged on the upper surface of the steel bridge deck body; a methacrylic resin waterproof layer is arranged on the upper surface of the polyurethane resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with a thermoplastic acrylic resin bonding layer; the upper surface of the thermoplastic acrylic resin bonding layer is provided with an asphalt concrete paving layer.
4. The steel deck plate as claimed in claim 3, wherein the thickness of the urethane resin anticorrosive coating is 0.25 to 0.5 mm; the thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm; the thickness of the thermoplastic acrylic resin bonding layer is 0.1-0.3 mm.
5. A steel bridge deck is characterized by comprising a steel bridge deck body, wherein a polyurethane resin anticorrosive layer is arranged on the upper surface of the steel bridge deck body; a methacrylic resin waterproof layer is arranged on the upper surface of the polyurethane resin anticorrosive layer; the upper surface of the methacrylic resin waterproof layer is provided with an epoxy resin bonding layer; the upper surface of the epoxy resin bonding layer is provided with an asphalt concrete paving layer.
6. The steel deck plate as claimed in claim 5, wherein the thickness of the polyurethane resin anticorrosive coating is 0.25 to 0.5 mm; the thickness of the methacrylic resin waterproof layer is 1.2-4.2 mm; the thickness of the epoxy resin bonding layer is 0.1-0.3 mm.
7. The steel bridge deck according to any one of claims 1 to 6, wherein the asphalt concrete pavement layer comprises a cast asphalt concrete layer having a thickness of 20 to 100mm and an asphalt mastic macadam concrete layer having a thickness of 20 to 100 mm.
8. The steel bridge deck according to any one of claims 1 to 6, wherein the asphalt concrete pavement layer comprises a cast asphalt concrete layer having a thickness of 20 to 100mm and an epoxy asphalt concrete layer having a thickness of 20 to 100 mm.
9. A steel decking according to any one of claims 1 to 6, wherein the decking has a roughness of 80 μm or more.
10. A steel bridge comprising a bridge frame and a steel bridge deck as claimed in any one of claims 1 to 8 connected to the bridge frame.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113356049A (en) * | 2021-07-07 | 2021-09-07 | 重庆市智翔铺道技术工程有限公司 | Railway steel bridge deck pavement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113356049A (en) * | 2021-07-07 | 2021-09-07 | 重庆市智翔铺道技术工程有限公司 | Railway steel bridge deck pavement structure |
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