Seamless bridge expansion device

Abstract

The utility model belongs to the technical field of expansion devices, and discloses a seamless bridge expansion device. The main technical characteristics are as follows: a left channel steel, a right channel steel and a sealing waterstop are included, the left channel steel is provided with a left opening, a left reinforcing rib and a left supporting plate, the right channel steel is provided with a right opening, a right reinforcing rib and a right supporting plate, and an arc-shaped stainless steel plate and a polyurethane elastomer are arranged on the left supporting plate and the right supporting plate; the bottom face of the polyurethane elastomer is matched with the arc-shaped stainless steel plate in shape, the top face of the polyurethane elastomer is a plane, the horizontal height of the top face of the polyurethane elastomer is matched with the horizontal height of the top face of the left channel steel and the horizontal height of the top face of the right channel steel, and the left channel steel and the right channel steel are connected with the anchoring plate through anchoring ribs respectively. According to the seamless bridge expansion device, the impact force of tires on the expansion device is reduced, the abrasion of the tires is reduced, the damage of expansion joints and beam end concrete caused by the impact of the tires is reduced, vehicles can pass through more stably, and the noise is lower.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge expansion devices, and in particular relates to a seamless bridge expansion device. Background Art

[0002] The bridge expansion device is installed between the abutment and the beam or between the two beam ends to adapt to the deformation caused by the temperature expansion and contraction of the bridge, concrete creep, bridge live load and other loads, and also to accommodate the smooth passage of vehicles. The bridge expansion device directly bears the impact of wheel loads, which not only causes tire wear, but also damages the expansion joint and concrete at the beam end due to tire impact. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a seamless bridge telescopic device with small impact force of tires on the telescopic device when a vehicle passes through the telescopic device.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: comprising a left channel steel and a right channel steel, a sealing waterstop is arranged between the left channel steel and the right channel steel, a left opening is arranged on the left side of the left channel steel, a left reinforcing rib is arranged in the left opening, a left supporting plate is arranged on the right side of the left channel steel, a right opening is arranged on the right side of the right channel steel, a right reinforcing rib is arranged in the right opening, a right supporting plate is arranged on the left side of the right channel steel, an arc-shaped stainless steel plate is arranged on the top of the left and right supporting plates, a polyurethane elastomer is arranged on the top of the arc-shaped stainless steel plate, the bottom surface shape of the polyurethane elastomer matches the arc-shaped stainless steel plate, the top surface of the polyurethane elastomer is flat, the horizontal height of the top surface of the polyurethane elastomer matches the horizontal height of the top surface of the left and right channel steels, and the left channel steel and the right channel steel are respectively connected to the anchor plate through anchor bars.

[0005] Its additional technical features are: the horizontal height of the left support plate is higher than the horizontal height of the right support plate, or the horizontal height of the left support plate is lower than the horizontal height of the right support plate, or the horizontal height of the left support plate is the same as the horizontal height of the right support plate.

[0006] The utility model provides a seamless bridge expansion device, in which the steel section adopts channel steel, a left opening is arranged on the left side of the left channel steel, a left reinforcing rib is arranged in the left opening, and a right opening is arranged on the right side of the right channel steel, and a right reinforcing rib is arranged in the right opening. In this way, the reinforcing ribs are shortened and arranged in the direction of the slot opening to reinforce the opening part of the channel steel. The production process of the channel steel is simple, the production cost is low, the amount of steel used is reduced, and the cost of the expansion device is reduced. A left support plate is arranged on the right side of the left channel steel, and a right support plate is arranged on the left side of the right channel steel. Arc-shaped stainless steel plates are arranged on the upper sides of the left support plate and the right support plate. The arc-shaped stainless steel plates have strong corrosion resistance. The arc-shaped stainless steel provides an upward supporting force for the polyurethane elastomer, so that the compression of the polyurethane elastomer by the vehicle is limited. At the same time, the arc-shaped stainless steel can also reduce the vibration of the polyurethane elastomer when the vehicle passes, thereby increasing the vibration fatigue life of the polyurethane elastomer. A polyurethane elastomer is arranged on the top of the arc-shaped stainless steel plate. The bottom surface of the polyurethane elastomer matches the arc-shaped stainless steel plate. The top surface of the polyurethane elastomer is a plane. The horizontal height of the top surface of the polyurethane elastomer matches the horizontal height of the top surfaces of the left channel steel and the right channel steel. The polyurethane elastomer is tightly bonded to the left channel steel and the right channel steel, and is not bonded to the arc-shaped stainless steel plate. The left channel steel and the right channel steel form a seamless connection, and the entire device forms a seamless telescopic device. The seamless telescopic device has the function of preventing road dust and gravel from entering the expansion joint. At the same time, the polyurethane elastomer and the sealing water stop form a double seal, which can further improve the reliability of waterproofing and dustproofing. The seamless bridge telescopic device provided by the utility model reduces the impact force of the tire on the telescopic device when the vehicle passes through the telescopic device, reduces the wear of the tire, reduces the damage to the expansion joint and the concrete at the end of the beam caused by the impact of the tire, and the vehicle passes through the telescopic device more smoothly and with lower noise. According to needs, the horizontal height of the left support plate is higher than the horizontal height of the right support plate, or the horizontal height of the left support plate is lower than the horizontal height of the right support plate, or the horizontal height of the left support plate is the same as the horizontal height of the right support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a structural schematic diagram of a seamless bridge expansion device of the utility model;

[0008] Figure 2 It is a schematic diagram of the exploded structure of a seamless bridge expansion device;

[0009] Figure 3 It is the structural schematic diagram of the left channel steel;

[0010] Figure 4 It is the structural schematic diagram of the left reinforcing rib;

[0011] Figure 5 is the structural diagram of the anchor bar;

[0012] Figure 6is a structural schematic diagram of the anchor plate;

[0013] Figure 7 It is a schematic diagram of the top view structure of a seamless bridge expansion device;

[0014] Figure 8 It is a left-side structural schematic diagram of a seamless bridge expansion device;

[0015] Fig. 9 The present invention is a schematic diagram of the usage structure of a seamless bridge expansion device. DETAILED DESCRIPTION

[0016] The specific structure of a seamless bridge expansion device provided by the utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the utility model is a seamless bridge expansion device comprising a left channel steel 1 and a right channel steel 2. A left opening 3 is provided on the left side of the left channel steel 1, and a left reinforcing rib 4 is provided in the left opening 3. A left supporting plate 5 is provided on the right side of the left channel steel 1, and a right opening 6 is provided on the right side of the right channel steel 2. A right reinforcing rib 7 is provided in the right opening 6. A right supporting plate 8 is provided on the left side of the right channel steel 2. An arc-shaped stainless steel plate 9 is provided on the upper surface of the left supporting plate 5 and the right supporting plate 8. A polyurethane elastomer 10 is provided on the upper surface of the arc-shaped stainless steel plate 9. The bottom surface shape of the polyurethane elastomer 10 matches the arc-shaped stainless steel plate 9. The top surface of the polyurethane elastomer 10 is a plane. The horizontal height of the top surface of the polyurethane elastomer 10 matches the horizontal height of the top surface of the left channel steel 1 and the right channel steel 2. The left channel steel 1 and the right channel steel 2 are respectively connected to the anchor plate 12 through anchor bars 11. The horizontal height of the left supporting plate 5 is higher than that of the right supporting plate 8. A sealing waterstop 13 is provided between the left channel steel 1 and the right channel steel 2.

[0018] The utility model provides a seamless bridge expansion device, wherein the steel section adopts channel steel, a left opening 3 is arranged on the left side of the left channel steel 1, a left reinforcing rib 4 is arranged in the left opening 3, a right opening 6 is arranged on the right side of the right channel steel 2, and a right reinforcing rib 7 is arranged in the right opening 6. In this way, the reinforcing ribs are shortened and arranged in the opening direction of the notch to strengthen the opening part of the channel steel. The production process of the channel steel is simple, the production cost is low, the steel consumption is reduced, and the cost of the expansion device is reduced. A left support plate 5 is arranged on the right side of the left channel steel 1, and a right support plate 8 is arranged on the left side of the right channel steel 2. An arc-shaped stainless steel plate 9 is arranged on the upper side of the left support plate 5 and the right support plate 8. The arc-shaped stainless steel plate 9 has strong corrosion resistance. The arc-shaped stainless steel 9 provides an upward supporting force for the polyurethane elastomer 10, so that the compression of the polyurethane elastomer 10 by the vehicle is limited. At the same time, the arc-shaped stainless steel 9 can also reduce the vibration of the polyurethane elastomer 10 when the vehicle passes, thereby increasing the vibration fatigue life of the polyurethane elastomer 10. A polyurethane elastomer 10 is arranged on the top of the arc-shaped stainless steel plate 9. The bottom surface shape of the polyurethane elastomer 10 matches the arc-shaped stainless steel plate 9. The top surface of the polyurethane elastomer 10 is a plane. The horizontal height of the top surface of the polyurethane elastomer 10 matches the horizontal height of the top surfaces of the left channel steel 1 and the right channel steel 2. The polyurethane elastomer 10 is tightly bonded to the left channel steel 1 and the right channel steel 2, and is not bonded to the arc-shaped stainless steel plate 9. The left channel steel 1 and the right channel steel 2 form a seamless connection, and the entire device forms a seamless telescopic device. The seamless telescopic device has the function of preventing road dust and gravel from entering the expansion joint. At the same time, the polyurethane elastomer 10 and the sealing water stop 13 form a double seal, which can further improve the reliability of waterproofing and dustproofing. The seamless bridge telescopic device provided by the utility model reduces the impact force of the tire on the telescopic device when the vehicle passes through the telescopic device, reduces the wear of the tire, reduces the damage to the expansion joint and the concrete at the end of the beam caused by the impact of the tire, and the vehicle passes through the telescopic device more smoothly and with lower noise. As required, the level of the left support plate 5 is higher than that of the right support plate 8 , or the level of the left support plate 5 is lower than that of the right support plate 8 , or the level of the left support plate 5 is the same as that of the right support plate 8 .

[0019] The seamless bridge expansion device provided by the utility model is not limited to the above-mentioned structure. Any modifications, equivalent replacements and improvements made on the basis of the utility model should be included in the protection scope of the utility model.

Claims

1. A seamless bridge expansion device, characterized in that: It comprises a left channel steel and a right channel steel, a sealing water stop is arranged between the left channel steel and the right channel steel, a left opening is arranged on the left side of the left channel steel, a left reinforcing rib is arranged in the left opening, a left supporting plate is arranged on the right side of the left channel steel, a right opening is arranged on the right side of the right channel steel, a right reinforcing rib is arranged in the right opening, a right supporting plate is arranged on the left side of the right channel steel, an arc-shaped stainless steel plate is arranged on the top of the left supporting plate and the right supporting plate, a polyurethane elastomer is arranged on the top of the arc-shaped stainless steel plate, the bottom surface shape of the polyurethane elastomer matches the arc-shaped stainless steel plate, the top surface of the polyurethane elastomer is flat, the horizontal height of the top surface of the polyurethane elastomer matches the horizontal height of the top surface of the left channel steel and the right channel steel, and the left channel steel and the right channel steel are connected to the anchor plate through anchor bars respectively.

2. A seamless bridge expansion device according to claim 1, characterized in that: The horizontal height of the left support plate is higher than that of the right support plate, or the horizontal height of the left support plate is lower than that of the right support plate, or the horizontal height of the left support plate is the same as that of the right support plate.

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