A deformation-resistant bridge steel structure

Abstract

The utility model provides an anti-deformation bridge steel structure, comprising a cylindrical outer tube, wherein a reinforcement assembly is arranged inside the cylindrical outer tube; the reinforcement assembly comprises a central pillar and a spiral rib plate arranged on the central pillar, wherein the outer edge of the spiral rib plate is fixedly connected to the inner wall of the cylindrical outer tube; fixed end plates are arranged at both ends of the central pillar, and fixed sealing plates are arranged at both ends of the cylindrical outer tube; a plurality of first connection holes are provided on the fixed end plate, and a plurality of second connection holes and a third connection hole are provided on the fixed sealing plate; the first connection hole of the fixed end plate and the second connection hole of the fixed sealing plate are fixedly connected by a bolt assembly; the third connection holes of the two fixed sealing plates are fixedly connected by a bolt assembly. The anti-deformation bridge steel structure has a scientific design, and the internal support is uniformly stressed. After the bridge is assembled, it is convenient to replace and repair even if collision and deformation occur.

Description

Technical Field

[0001] The utility model relates to the field of bridges, and in particular to an anti-deformation bridge steel structure. Background Art

[0002] Steel structure bridges are bridges whose main load-bearing structures are made of steel. They are also called steel structure bridges and steel bridges. Prefabricated steel bridges have been widely used all over the world. The main design concept is to assemble a prefabricated steel bridge with a minimum number of unit components to carry various loads and different spans. It only needs to be transported by ordinary medium-sized trucks, and can be built entirely by manpower in special cases.

[0003] However, the strength of the hollow round structure is relatively poor, and it is easy to deform when it is impacted. It is used to assemble steel structure bridges. In order to improve the stability of bridge steel structures, people have made a series of improvements to steel structures, such as: a deformation-resistant bridge steel structure disclosed in Chinese patent CN219527315U, a deformation-resistant bridge steel structure disclosed in Chinese patent CN216108076U, etc. These deformation-resistant steel structures set a supporting steel frame inside the round steel to improve the strength of the steel structure. However, the supporting steel frame adopts a rectangular right-angle structure, and the contact area with the round steel is small, which has a large support defect.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0005] The utility model aims to provide a bridge steel structure which is resistant to deformation, in view of the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A deformation-resistant bridge steel structure comprises a cylindrical outer tube, wherein a reinforcing assembly is arranged inside the cylindrical outer tube; the reinforcing assembly comprises a central pillar and a spiral rib plate arranged on the central pillar, wherein the outer edge of the spiral rib plate is fixedly connected to the inner wall of the cylindrical outer tube; fixed end plates are respectively arranged at both ends of the central pillar, and fixed sealing plates are respectively arranged at both ends of the cylindrical outer tube; a plurality of first connecting holes are opened on the fixed end plate, and a plurality of second connecting holes and a third connecting hole are opened on the fixed sealing plate; the first connecting holes of the fixed end plate and the second connecting holes of the fixed sealing plate are fixedly connected by a bolt assembly; and the third connecting holes of the two fixed sealing plates are fixedly connected by a bolt assembly.

[0008] A plurality of reinforcing rods are arranged between the fixed end plates at both ends of the central pillar, the reinforcing rods are parallel to the central pillar, a plurality of mounting holes are arranged on the spiral rib plates corresponding to the reinforcing rods, and the reinforcing rods are arranged through the mounting holes.

[0009] The reinforcing rods are evenly arranged circumferentially with the central pillar as the center.

[0010] A glue injection port is provided on one of the fixed end plates. The glue injection port is eccentrically arranged and communicates with a spiral channel formed by the outer wall of the central pillar, the spiral rib plate and the inner wall of the cylindrical outer tube.

[0011] A glue flow channel is arranged at the center of the central pillar, and the glue flow channel runs through the central pillar. A plurality of through holes are evenly arranged on the central pillar, and the interval between two adjacent through holes is equal to the pitch of the spiral rib plate.

[0012] The through hole corresponds to the midpoint of two adjacent spiral blades.

[0013] One of the fixed end plates is provided with a central through hole corresponding to the glue flow channel.

[0014] Compared with the prior art, the utility model has the beneficial effect that the utility model provides a deformation-resistant bridge steel structure.

[0015] Compared with the prior art, the utility model has the beneficial effect that it provides a deformation-resistant bridge steel structure with scientific design and uniform internal support force. After the bridge is assembled, it is convenient to replace and repair even if collision deformation occurs. Specifically, the spiral rib plate is matched with the cylindrical outer tube, the force is more uniform, and the stability of the structure is improved by setting a central pillar; fixed sealing plates are respectively set at both ends of the cylindrical outer tube; it is convenient to assemble and disassemble and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0018] Figure 3 It is a partially enlarged schematic diagram of the fixed end plate in the utility model.

[0019] Figure 4 It is a partially enlarged schematic diagram of the fixed sealing plate in the utility model.

[0020] In the figure: 1. Cylindrical outer tube; 2. Fixed sealing plate; 3. Central pillar; 4. Spiral rib plate; 5. Reinforcement rod; 6. Glue flow channel; 7. First connecting hole; 8. Second connecting hole; 9. Third connecting hole; 10. Fixed end plate. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0022] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. "Installed", "provided with", "connected", etc. can adopt conventional means in the prior art, such as: integral setting, snap-on installation, welding connection, adhesive connection, bolt connection, etc. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances, and suitable connection, setting or installation methods can be selected in the prior art.

[0023] like Figure 1-4 As shown, a deformation-resistant bridge steel structure comprises a cylindrical outer tube 1, wherein a reinforcing assembly is arranged inside the cylindrical outer tube 1; the reinforcing assembly comprises a central pillar 3 and a spiral rib plate 4 arranged on the central pillar 3, wherein the outer edge of the spiral rib plate 4 is fixedly connected to the inner wall of the cylindrical outer tube 1; fixed end plates 10 are respectively arranged at both ends of the central pillar 3, and fixed sealing plates 2 are respectively arranged at both ends of the cylindrical outer tube 1; a plurality of first connecting holes 7 are opened on the fixed end plate, and a plurality of second connecting holes 8 and a third connecting hole 9 are opened on the fixed sealing plate 2; the first connecting holes 7 of the fixed end plate and the second connecting holes 8 of the fixed sealing plate 2 are fixedly connected by a bolt assembly; the third connecting holes of the two fixed sealing plates 2 are fixedly connected by a bolt assembly.

[0024] The anti-deformation bridge steel structure has a scientific design and uniform internal support force. After the bridge is assembled, it is easy to replace and repair even if it is deformed by collision. Specifically, the spiral rib plate is matched with the cylindrical outer tube, the force is more uniform, and the stability of the structure is improved by setting a central pillar; fixed sealing plates are set at both ends of the cylindrical outer tube, which is convenient for assembly and disassembly and maintenance.

[0025] In one of the embodiments, a plurality of reinforcing rods 5 are arranged between the fixed end plates at both ends of the central pillar 3. The reinforcing rods 5 are parallel to the central pillar 3. A plurality of mounting holes are arranged on the spiral rib plates 4 corresponding to the reinforcing rods 5. The reinforcing rods 5 are arranged through the mounting holes to further enhance the stability of the structure.

[0026] In one embodiment, the reinforcing rods 5 are evenly arranged circumferentially with the central pillar 3 as the center.

[0027] In one of the embodiments, a glue flow channel 6 is provided at the center of the central pillar 3, and the glue flow channel 6 runs through the central pillar 3. A plurality of through holes are evenly provided on the central pillar 3, and the spacing between two adjacent through holes is equal to the pitch of the spiral rib plate 4. The through hole corresponds to the midpoint of two adjacent spiral blades. A central through hole is provided in one of the fixed end plates corresponding to the glue flow channel 6. During use, glue can be injected into the glue flow channel from the central through hole, and the glue flows into the spiral channel of the spiral rib plate through the through hole of the glue flow channel. Specifically, the glue can be a common commercially available structural adhesive.

[0028] In other embodiments, a glue injection port is provided on one of the fixed end plates, the glue injection port is eccentrically arranged, and the glue injection port is connected to the spiral channel formed by the outer wall of the central pillar, the spiral rib plate and the inner wall of the cylindrical outer tube. During use, structural glue is injected into the spiral channel from the glue injection port.

[0029] The above embodiments can be combined with each other.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A deformation-resistant bridge steel structure, characterized in that: It comprises a cylindrical outer tube, inside of which a reinforcing assembly is arranged; the reinforcing assembly comprises a central pillar and a spiral rib plate arranged on the central pillar, the outer edge of the spiral rib plate is fixedly connected to the inner wall of the cylindrical outer tube; fixed end plates are respectively arranged at both ends of the central pillar, and fixed sealing plates are respectively arranged at both ends of the cylindrical outer tube; a plurality of first connecting holes are opened on the fixed end plate, and a plurality of second connecting holes and a third connecting hole are opened on the fixed sealing plate; the first connecting holes of the fixed end plate and the second connecting holes of the fixed sealing plate are fixedly connected by a bolt assembly; the third connecting holes of the two fixed sealing plates are fixedly connected by a bolt assembly.

2. The anti-deformation bridge steel structure according to claim 1, characterized in that: A plurality of reinforcing rods are arranged between the fixed end plates at both ends of the central pillar, the reinforcing rods are parallel to the central pillar, a plurality of mounting holes are arranged on the spiral rib plates corresponding to the reinforcing rods, and the reinforcing rods are arranged through the mounting holes.

3. The anti-deformation bridge steel structure according to claim 2 is characterized in that: The reinforcing rods are evenly arranged circumferentially with the central support as the center.

4. The anti-deformation bridge steel structure according to claim 3, characterized in that: A glue injection port is provided on one of the fixed end plates. The glue injection port is eccentrically arranged and communicates with a spiral channel formed by the outer wall of the central pillar, the spiral rib plate and the inner wall of the cylindrical outer tube.

5. The anti-deformation bridge steel structure according to claim 3, characterized in that: A glue flow channel is arranged at the center of the central pillar, and the glue flow channel runs through the central pillar. A plurality of through holes are evenly arranged on the central pillar, and the interval between two adjacent through holes is equal to the pitch of the spiral rib plate.

6. The anti-deformation bridge steel structure according to claim 5, characterized in that: The through hole corresponds to the midpoint of two adjacent spiral blades.

7. The anti-deformation bridge steel structure according to claim 6, characterized in that: One of the fixed end plates is provided with a central through hole corresponding to the glue flow channel.

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