Steel structure bridge deck slab for preventing cold bridge

Abstract

The utility model relates to a steel structure bridge deck slab, in particular to an anti-cold bridge steel structure bridge deck slab which comprises a wrapping plate, a surface layer, a plurality of supporting plates, a storage layer, a heat conduction layer, an embedding and fixing layer and a side face layer, an opening is formed in the upper portion of the wrapping layer, the surface layer is placed at the position of the opening in the upper portion of the wrapping layer, and the supporting plates are arranged between the wrapping layer and the surface layer. The lower portion of the wrapping plate is connected with the containing layer, the upper portion of the containing layer is arranged in a connecting opening mode, a heat conduction layer is embedded in the connecting opening of the containing layer, the side, away from the connecting opening, outside the containing layer is connected with the inlaying layer, a heat conduction piece is wrapped in the inlaying layer, and the side, away from the containing layer, of the inlaying layer is fixed to a bridge floor. A side surface layer is arranged at the peripheral edge of each of the wrapping plate and the storage layer; the heat conduction layer is further arranged on the storage layer below the wrapping layer, heat can be conducted out to the wrapping layer through the heat conduction layer, then the heat is transmitted to the surface layer through the supporting plates, and the phenomenon that the surface layer is prone to cracking due to low temperature can be reduced through the arrangement.

Description

Technical Field

[0001] The utility model relates to a steel structure bridge deck, in particular to a steel structure bridge deck for preventing cold bridges. Background Art

[0002] Bridges are used to provide passages for pedestrians and vehicles. They are particularly common in mountainous areas and river channels where it is difficult to build roads. Aerial bridges are vulnerable to wind and rain all year round. Especially in cold weather, steel structure bridges are easily affected by the cold and suffer from shrinkage and fracture.

[0003] Publication number CN111519528A is a Chinese invention patent, which discloses an orthotropic steel bridge deck, comprising: a plate body; a plurality of webs, arranged on the lower surface of the plate body along the width direction of the plate body; a first longitudinal stiffening rib and a second longitudinal stiffening rib, a pair of the first longitudinal stiffening ribs are arranged on opposite sides of the web along the width direction of the plate body, the second longitudinal stiffening rib is arranged between a pair of the first longitudinal stiffening ribs between two adjacent webs, and the height of the first longitudinal stiffening rib is greater than the height of the second longitudinal stiffening rib. The present invention provides an orthotropic steel bridge deck that reduces stress concentration at the web position and avoids cracks in the bridge deck pavement.

[0004] In combination with the above structure, in the above structure, most of the stress at the web is dispersed by setting a pair of first longitudinal stiffening ribs to reduce the stress peak, and the remaining stress is dispersed on the second longitudinal stiffening rib, thereby effectively improving the stress concentration phenomenon at the web, and further avoiding cracks that may be generated in the pavement layer provided on the plate body. Among them, the force of thermal expansion and contraction is evenly dispersed by two stiffening ribs to avoid reducing the stress peak. However, the peak value that the two stiffening ribs can withstand has a certain range. In extreme or relatively abnormal weather, it is easy to cause the stress peak value exceeding the two stiffening ribs, thereby causing fractures. In addition, the two stiffening ribs are prone to fatigue of the objects themselves after long-term use, causing the two stiffening ribs to be damaged and fractured. Utility Model Content

[0005] In view of the technical defects existing in the background technology, the utility model proposes a steel structure bridge deck for preventing cold bridges, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0006] A steel structure bridge deck for a cold-proof bridge, comprising: a wrapping plate, a surface layer, a support plate, a storage layer, a heat-conducting layer, a fixing layer and a side layer, wherein the wrapping plate has an opening above, the surface layer is placed at the opening above the wrapping plate, a plurality of support plates are arranged between the wrapping plate and the surface layer, each of the support plates is arranged in a triangular plate, foam glue is filled between every two support plates and the surface layer, the wrapping plate is connected to the storage layer below, the storage layer is arranged in a joint above, a heat-conducting layer is embedded in the joint of the storage layer, the outside of the storage layer and the side away from the joint is connected to the fixing layer, a heat-conducting sheet is wrapped in the fixing layer, the fixing layer is far away from the joint The side away from the storage layer is fixed to the external bridge deck, and a side layer is respectively provided at the edges of the wrapping plate and the storage layer; the support plate is composed of two vertical plates and is arranged in an integrated manner, and the two vertical plates of the support plate are arranged to be inclined outward from top to bottom, and the upper ends of the two vertical plates are connected to each other and incorporated into the lower surface of the surface layer, and the lower ends of the two vertical plates are fixed and embedded in the bottom surface of the wrapping plate, and the two vertical plates of the support plate are made of elastic plastic; each of the side layers is connected to one side of the wrapping plate and the storage layer by a pulling plate, and the side of each side layer away from the wrapping plate and the storage layer is connected to the fixed plate by a rebound rubber layer.

[0007] A plurality of heat-conducting holes are provided at the bottom of the wrapping plate, and the upper portion of each heat-conducting hole corresponds to a space between two vertical plates of a supporting plate; the wrapping plate is made of a relatively soft material.

[0008] The edge of the surface layer is fixed to the opening edge of the wrapping plate by bonding with sealant; the surface layer is made of soft rubber; a plurality of inwardly concave arc-shaped grooves are provided under the surface layer, and each arc-shaped groove corresponds to the overlapping part of the two vertical plates of the support plate; the edge of the surface layer is connected to the pulling plate.

[0009] The overlapping part of the two vertical plates of each support plate is arranged in an arc shape convex outward; a convex plate is respectively provided at the lower end of the two vertical plates of each support plate, and the two vertical plates are respectively embedded in the bottom of the wrapping plate through the convex plate, and a diaphragm is provided on the adjacent two sides of the two vertical plates of the support plate, and the diaphragm is fitted along the two vertical plates and the bottom edge of the wrapping plate; a plurality of the support plates are arranged in sequence along a side surface direction inside the wrapping plate, and the front and rear ends of each support plate extend to the front and rear ends of the wrapping plate respectively, and are flush with each other.

[0010] A wiring unit is provided in the storage layer, and a water pump is provided on two adjacent sides of the wiring board unit respectively; a resistance heating unit is provided in the wiring unit, and the wiring unit and the resistance heating unit are connected by a wire tube and are electrically connected, and the resistance heating unit of the wiring unit is connected with at least two heat-conducting wires and extends into the storage layer; the heat-conducting layer is hollow, and liquid water is filled in the heat-conducting layer, and the two heat-conducting wires connected to the resistance heating unit of the wiring unit are respectively penetrated and extended into the heat-conducting layer, and extend to both sides of the heat-conducting layer; the wiring unit is extended to the outside of the storage layer by a wire tube, and is electrically connected to an external control unit; a thermal conductive plate is embedded between the storage layer and the embedding layer, and the top of the thermal conductive plate is connected to the resistance heating unit provided in the wiring unit by a thermal conductive wire.

[0011] The two water pumps are respectively a water-drawing water pump and a water-conducting water pump. The two water pumps are respectively penetrated by pipelines and extend into the heat-conducting layer. A pipeline is connected between the two water pumps and on opposite sides. One water pump, the heat-conducting layer and the other water pump circulate and guide liquid water in turn. The two water pumps are respectively electrically connected to the wiring unit by wire pipes.

[0012] A pad is provided on one side of the side layer facing the pulling plate, and a clamping plate with holes is respectively provided on the lower end and opposite sides of the pad; at least two pulling plates are provided, and the two pulling plates are stacked in sequence outside the pad, and a circular ring is respectively provided at the lower end of the two pulling plates, and a rebound rubber layer is bonded between the two pulling plates; the two clamping plates of the pad are respectively clamped on the circular rings at the lower ends of the two pulling plates, and an axle rod is horizontally passed through, and the two pulling plates are swung downward in a fan shape in one direction in sequence.

[0013] The beneficial effects of the utility model are:

[0014] The wrapping plate is stacked and connected with the surface layer and the storage layer, and is fixed to the steel structure bridge deck through the fixing layer. The edges of the wrapping plate, the surface layer and the storage layer are fixed to the edges of the bridge deck on both sides through the side panels, and the front of the wrapping plate, the surface layer and the storage layer extends to the front and rear ends of the bridge body. When the external force is applied to the surface layer, several support plates under the surface layer push the force upward to achieve the supporting effect. When several support plates and the surface layer are deformed by force, they are pulled and reset through the side panels at the edges on both sides. When the material is cold, it is easy to become fragile. Therefore, when pressure is applied, After the addition, the cracks that appear will flow out through the foam glue in the wrapping plate to fill and repair the cracks, thereby avoiding the bridge deck from being broken due to the cracks. At the same time, the utility model also provides a heat-conducting layer in the storage layer below the wrapping plate. The heat-conducting layer can export heat to the wrapping plate, and then transfer the heat to the surface layer through a number of supporting plates. This arrangement can reduce the easy cracking of the surface layer caused by low temperature, and the heat-conducting layer can also feed back heat to the fixing layer to heat up the steel structure bridge deck below, thereby further avoiding the cold shrinkage and fracture of the steel structure bridge deck due to cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the structure of a steel structure bridge deck for preventing cold bridges.

[0016] Figure 2 The figure is a schematic diagram of the unfolded structure of the side layer of a steel structure bridge deck for preventing cold bridges.

[0017] Figure 3 The figure is a schematic diagram of the installation structure of a steel structure bridge deck and a bridge body for preventing cold bridges. DETAILED DESCRIPTION

[0018] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0019] A steel structure bridge deck for preventing cold bridges, comprising: a wrapping plate 1, a surface layer 2, a support plate 3, a storage layer 4, a heat-conducting layer 5, a fixing layer 6 and a side layer 7, wherein the wrapping plate 1 has an opening above, the surface layer 2 is placed at the opening above the wrapping plate 1, a plurality of support plates 3 are arranged between the wrapping plate 1 and the surface layer 2, each of the support plates 3 is arranged in a triangular plate, and foam glue is filled between every two support plates 3 and the surface layer 2, the wrapping plate 1 is connected to the storage layer 4 below, the storage layer 4 is arranged in a joint above, a heat-conducting layer 5 is embedded in the joint of the storage layer 4, the outside of the storage layer 4 and the side away from the joint is connected to the fixing layer 6, a heat-conducting sheet 61 is wrapped in the fixing layer 6, and the fixing layer 6 is provided with a heat-conducting sheet 61. The side of layer 6 away from the storage layer 4 is fixed to the external bridge deck, and a side layer 7 is respectively provided at the edges of the wrapping plate 1 and the storage layer 4; the support plate 3 is composed of two vertical plates and is arranged in an integrated manner. The two vertical plates of the support plate 3 are respectively inclined outward from top to bottom, and the upper ends of the two vertical plates are connected to each other and incorporated into the lower surface of the surface layer 2. The lower ends of the two vertical plates are fixed and embedded in the bottom surface of the wrapping plate 1, and the two vertical plates of the support plate 3 are made of elastic plastic; each of the side layers 7 is connected to one side of the wrapping plate 1 and the storage layer 4 by a pulling plate 72, and each of the side layers 7 away from the wrapping plate 1 and the storage layer 4 is connected to the fixed plate 71 by a rebound rubber layer 73.

[0020] The wrapping plate 1 is stacked and connected with the surface layer 2 and the storage layer 4, and is fixed to the steel structure bridge deck through the fixing layer 6, wherein the wrapping plate 1 and the surface layer 2 and the storage layer 4 are fixed to the edges of the bridge deck on both sides through the side panels 7, and the wrapping plate 1 and the surface layer 2 and the storage layer 4 extend to the front and rear ends of the bridge body in front. When the external force is applied to the surface layer 2, several support plates 3 under the surface layer 2 push the force upward to achieve the supporting effect. When several support plates 3 and the surface layer 2 are deformed by force, they are pulled and reset by the side panels 7 at the edges on both sides. When the material is cold, it is easy to become fragile. Therefore, After the pressure is applied, the cracks that appear will flow out through the foam glue in the wrapping plate 1 to fill and repair the cracks, thereby avoiding the bridge deck from being broken due to the cracks. At the same time, the utility model also provides a heat-conducting layer 5 in the storage layer 4 below the wrapping plate 1. The heat-conducting layer 5 can export heat to the wrapping plate 1, and then transfer the heat to the surface layer 2 through a number of support plates 3. This arrangement can reduce the easy cracking of the surface layer 1 caused by low temperature, and the heat-conducting layer 5 can also feed back heat to the fixing layer 6 to heat up the steel structure bridge deck below, thereby further avoiding the cold shrinkage and fracture of the steel structure bridge deck caused by cooling.

[0021] After adopting the above structure, it needs to be further explained that, and the utility model can also be set up by an independent piece, and several pieces are composed of a wrapping plate 1, a surface layer 2, and a storage layer 4. After that, the wrapping plates 1 and the surface layer 2 and the storage layer 4 are bonded and spliced ​​with each other through the side panels 7. This setting can be used when the bridge deck of the bridge body is large. It can be paved in the above manner to make it more adaptable, avoiding the need for the utility model to adapt to the specifications of the bridge body, and to produce wrapping plates 1, surface layers 2, and storage layers of different sizes.

[0022] The wrapping plate 1 is provided with a plurality of heat conducting holes at the bottom, and each heat conducting hole is located between two vertical plates of a support plate 3 . The wrapping plate 1 is made of a relatively soft material.

[0023] After adopting the above structure, it needs to be further explained that the several heat-conducting holes opened in the utility model are used to conduct the heat of the heat-conducting layer 5 to the outside, and the wrapping plate 1 of the utility model is made of rubber-plastic insulation cotton, which is a closed foaming structure with a small thermal conductivity coefficient. The product is soft and extremely convenient to construct and install.

[0024] The edge of the surface layer 2 is fixed to the opening edge of the wrapping plate 1 by means of sealant; the surface layer 2 is made of soft rubber; a plurality of inwardly concave arc-shaped grooves are provided under the surface layer 2, and each arc-shaped groove corresponds to the overlapping part of the two vertical plates of the support plate 3; the edge of the surface layer 2 is connected to the pulling plate 72.

[0025] After adopting the above structure, it needs to be further explained that the surface layer 2 is set with rubber to increase the friction between the upper side and the object with potential force (vehicle, etc.), and can avoid slipping in rainy days. The production of rubber can avoid slipping. Because the surface layer 1 is relatively soft, it can easily clean the ice layer by squeezing, thereby reducing the formation of ice layer.

[0026] The arc-shaped groove of the surface layer 2 is used to provide a limit for the top of the support plate 3. When the support plate 3 is reset after being squeezed and deformed, the arc-shaped groove can provide positioning for the support plate 3 after reset, thereby preventing the support plate 3 from being placed irregularly under the surface layer 2 after reset, thereby affecting the flatness of the upper surface layer 1.

[0027] After the surface layer 2 is depressed, in order to ensure the reset speed, the edges of the surface layer 2 on both sides can be pulled outwards through the elasticity of the pulling plate 72, and the several arc-shaped grooves on the lower surface are adjusted to allow space for the top of the support plate 3 to reset and move.

[0028] The overlapping part of the two vertical plates of each of the support plates 3 is arranged in an arc shape convex outward; a convex plate is respectively provided at the lower end of the two vertical plates of each of the support plates 3, and the two vertical plates are respectively embedded in the bottom of the wrapping plate 1 through the convex plate, and a diaphragm is provided on the adjacent two sides of the two vertical plates of the support plate 3, and the diaphragm is fitted along the two vertical plates and the bottom edge of the wrapping plate 1; a plurality of the support plates 3 are arranged in sequence along a side direction inside the wrapping plate 1, and the front and rear ends of each of the support plates 3 extend to the front and rear ends of the wrapping plate 1, respectively, and are flush with each other.

[0029] After adopting the above structure, it needs to be further explained that the support plate 3 can conduct heat to the upper part of the surface layer 1, so as to avoid the formation of an ice surface when the surface layer 1 contains moisture.

[0030] The cross section of the support plate 3 is arranged in an isosceles triangle shape, and the cross section of several support plates 3 is arranged in an isosceles triangle shape to increase the supporting force of the surface layer 1 .

[0031] The heat dissipation temperature of the support plate 3 is not higher than 20° C., so it can be avoided that the heat dissipated by the support plate 3 causes the foam glue to burn brown, thereby causing the hardening and foaming function to be lost.

[0032] The diaphragms on both sides of the support plate 3 are used to prevent the foam glue from penetrating into and adhering to the support plate 3, thereby avoiding affecting the restoring resilience of the support plate 3. Therefore, the support plate 3 of the utility model is made of silicone rubber which is elastic and also has heat-conducting function.

[0033] A wiring unit 41 is provided in the storage layer 4, and a water pump 42 is provided on the adjacent two sides of the wiring board unit 41 respectively; a resistance heating unit is provided in the wiring unit 41, and the wiring unit 41 and the resistance heating unit are connected by a wire tube and are electrically connected. The resistance heating unit of the wiring unit 41 is connected with at least two heat-conducting wires and extends into the storage layer 4; the heat-conducting layer 5 is hollow, and liquid water is injected into the heat-conducting layer 5. The two heat-conducting wires connected to the resistance heating unit of the wiring unit 41 are respectively penetrated and extended into the heat-conducting layer 5, and extend to both sides of the heat-conducting layer 5; the wiring unit 41 is extended to the outside of the storage layer 2 by a wire tube, and is electrically connected to an external control unit; a thermal conductive plate 61 is embedded between the storage layer 4 and the embedding layer 6, and the top of the thermal conductive plate 61 is connected to the resistance heating unit provided in the wiring unit 41 by a thermal conductive wire.

[0034] After adopting the above structure, it needs to be further explained that the wiring unit 41 of the utility model is composed of a plurality of circuit boards, and they are electrically connected by wire tubes, and the wiring unit 41 controls the start and stop by connecting to an external control unit (computer) and other equipment.

[0035] The wiring unit 41 is also connected to a solar panel 8 and a temperature sensing unit 9. The solar panel 9 is fixed at the edge of the bridge body and converts light energy into electrical energy and prepares it for the reserve battery in the wiring unit 41. This setting is used to reduce external power transmission, so that when the power is disconnected, the electrical components of the utility model can also be operated.

[0036] The temperature sensing unit 9 is used to monitor the external temperature and feed back the temperature information to the wiring unit 41 , and finally the wiring unit 41 is used to control the start / stop of the resistance heating unit.

[0037] The resistance heating unit is a heating method through resistance, which heats the heat-conducting wire, and then the heat-conducting wire conducts the heat energy into the heat-conducting layer 5, and finally conducts the heat energy out through the heat-conducting layer 5. A temperature control valve is provided between the resistance heating unit and the wiring unit 41 to ensure that the heating heat does not exceed 20℃-30℃. When the liquid water in the heat-conducting layer 5 reaches the range of 20℃-30℃, the connection between the resistance heating unit and the power supply is disconnected.

[0038] The heat emitted by the resistance heating unit is easily stored in the storage layer 4. Therefore, the setting of the heat conduction plate 61 can absorb the heat stored in the storage layer 4, emit it outward, and feed back the heat to the steel structure bridge deck, so as to avoid the shrinkage and fracture caused by the cold on the steel structure bridge deck.

[0039] The two water pumps 42 are respectively a water pumping pump and a water conducting pump. The two water pumps 42 are respectively penetrated by pipelines and extend into the heat conducting layer 5. A pipeline is connected between the two water pumps 42 and on opposite sides. One water pump 42, the heat conducting layer 5 and the other water pump 42 circulate and guide liquid water in sequence. The two water pumps 42 are respectively electrically connected to the wiring unit 41 by wire pipes.

[0040] After adopting the above structure, it needs to be further explained that the water pump and the water conducting water pump are used to circulate the liquid water in the heat conducting layer 5. This setting is used to cool the liquid water in the heat conducting layer 5 to avoid overheating or the need for rapid cooling. The liquid water is guided out of the heat conducting layer 5 and directed to the water conducting water pump through the water pump. The pipe connected between the water pump and the water conducting water pump is arranged in a curved shape, so that when the liquid water flows in the pipe section, it contacts more pipe surfaces, so that the heat of the liquid water can be discharged. In order to make the heat discharge of the liquid water more sufficient, the surface of the pipe section arranged in a curved shape is provided with a heat sink composed of a plurality of ceramic tiles. The heat emitted from the pipe is discharged through a plurality of ceramic tiles, which can enhance the heat dissipation effect.

[0041] In addition, the setting of the pumping water pump and the water guiding water pump can also transfer the heat absorbed by the surface layer 1 and the support plate 3 to the thermal conductive layer 5 when the weather temperature is hot, and absorb it through the liquid water inside the thermal conductive layer 5 until the heat is discharged outward through the circulation of the pumping water pump and the water guiding water pump.

[0042] The side layer 7 is provided with a pad 74 on the side facing the pulling plate 72, and a clamping plate with holes is respectively provided at the lower end and opposite sides of the pad 74; at least two pulling plates 72 are provided, and the two pulling plates 72 are stacked in sequence outside the pad 74, and a circular ring is respectively provided at the lower end of the two pulling plates 72, and a rebound rubber layer 73 is bonded between the two pulling plates 72; the two clamping plates of the pad 74 are respectively clamped on the circular rings at the lower ends of the two pulling plates 72, and an axle rod is transversely passed through, and the two pulling plates 72 are swung downward in a fan shape in one direction in sequence.

[0043] After adopting the above structure, it needs to be further explained that the two pulling plates 72 are stacked on top of the pad 74 under normal conditions, and are connected by a rebound rubber layer 73 with strong resilience, so that when the two pulling plates 72 are directly pulled, they can be quickly reset through the rebound rubber layer 73 between them and pull the surface layer 1 to recover.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steel structure bridge deck for preventing cold bridges, comprising: A wrapping plate, a surface layer, a support plate, a storage layer, a heat-conducting layer, a fixing layer and a side layer, characterized in that the wrapping plate has an opening above, the surface layer is placed at the opening above the wrapping plate, a plurality of support plates are arranged between the wrapping plate and the surface layer, each of the support plates is arranged in a triangular plate, foam glue is filled between every two support plates and the surface layer, the wrapping plate is connected to the storage layer below, the storage layer is arranged in a joint above, a heat-conducting layer is embedded in the joint of the storage layer, the outside of the storage layer and the side away from the joint is connected to the fixing layer, a heat-conducting sheet is wrapped in the fixing layer, the side of the fixing layer away from the storage layer is fixed to the external bridge deck, and a side layer is respectively arranged at the surrounding edges of the wrapping plate and the storage layer; The support plate is composed of two vertical plates and is arranged in an integrated manner. The two vertical plates of the support plate are arranged to be inclined outward from top to bottom. The upper ends of the two vertical plates are connected and incorporated into the lower surface of the surface layer. The lower ends of the two vertical plates are fixed and embedded in the bottom surface of the wrapping plate. The two vertical plates of the support plate are made of elastic plastic. Each of the side layers is connected to one side of the wrapping plate and the storage layer by a pulling plate, and one side of each of the side layers away from the wrapping plate and the storage layer is connected to the fixing plate by a rebound rubber layer.

2. The cold bridge-proof steel structure bridge deck according to claim 1, characterized in that: The bottom of the wrapping plate is provided with a plurality of heat conducting holes, and the top of each heat conducting hole corresponds to the space between two vertical plates of a supporting plate; The wrapping plate is made of relatively soft material.

3. The cold bridge-proof steel structure bridge deck according to claim 1, characterized in that: The edge of the surface layer is fixed to the opening edge of the wrapping board by adhesive bonding with a sealant; The surface layer is made of soft rubber; A plurality of inwardly concave arc-shaped grooves are provided below the surface layer, and each arc-shaped groove corresponds to the overlapped position of two vertical plates of the support plate; The edge of the surface layer is connected to the pulling plate.

4. The cold bridge-proof steel structure bridge deck according to claim 1, characterized in that: The overlapping part of the two vertical plates of each support plate is arranged in an arc shape convex outwards; A convex plate is respectively provided at the lower end of the two vertical plates of each support plate, and the two vertical plates are respectively embedded in the bottom of the wrapping plate through the convex plate, and a diaphragm is provided on the adjacent two sides of the two vertical plates of the support plate, and the diaphragm is attached along the two vertical plates and the bottom edge of the wrapping plate; A plurality of the support plates are arranged in sequence along a side surface of the wrapping plate, and the front and rear ends of each of the support plates extend to the front and rear ends of the wrapping plate respectively and are flush with each other.

5. The cold bridge-proof steel structure bridge deck according to claim 1, characterized in that: A wiring unit is provided in the storage layer, and a water pump is provided on two adjacent sides of the wiring unit; A resistance heating unit is provided in the wiring unit, and the wiring unit and the resistance heating unit are connected by a wire tube and are electrically connected, and the resistance heating unit of the wiring unit is connected to at least two heat-conducting wires and extends into the storage layer; The heat-conducting layer is hollow and filled with liquid water. The two heat-conducting wires connected to the resistance heating unit of the wiring unit are respectively passed through and extended into the heat-conducting layer and extend to both sides of the heat-conducting layer. The wiring unit is extended to the outside of the storage layer by a wire tube and is electrically connected to an external control unit; A heat conduction plate is embedded between the storage layer and the fixing layer, and the upper part of the heat conduction plate is connected to the resistance heating unit arranged on the wiring unit by a heat conducting wire.

6. The cold bridge-proof steel structure bridge deck according to claim 5, characterized in that: The two water pumps are respectively a water pumping pump and a water conducting pump. The two water pumps are respectively penetrated by pipelines and extend into the heat conducting layer. A pipeline is connected between the two water pumps and on opposite sides thereof. One of the water pumps, the heat-conducting layer and the other water pump sequentially circulate and guide the liquid water; The two water pumps are electrically connected to the wiring unit through wire pipes.

7. The cold bridge-proof steel structure bridge deck according to claim 1, characterized in that: The side layer is provided with a pad on one side facing the pulling plate, and a clamping plate with holes is respectively provided on the lower end and opposite sides of the pad; At least two pulling plates are provided, and the two pulling plates are stacked in sequence outside the pad, a ring is provided at the lower end of each of the two pulling plates, and a rebound rubber layer is bonded between the two pulling plates; The two clamping plates of the pad are respectively clamped on the circular rings at the lower ends of the two pulling plates, and are traversed by an axle rod. The two pulling plates swing downward in a fan shape in one direction in turn.

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