Steel structure beam-column connection structure with shock-absorbing damper

Abstract

The utility model discloses a steel structure beam column connecting structure with damping damper, including steel beam and steel column, be provided with damping damper between steel beam and steel column, the damping damper includes shell, piston, piston rod and damping medium, the shell fixed connection is established on the steel column, the piston sets up in the shell inside and with shell sliding seal connection, one end of piston rod is fixedly connected with the piston, and the other end is out of the shell and is fixedly connected with steel beam, the shell inside is filled with damping medium, the piston reciprocating motion in the shell under the action of vibration, generates damping force through extruding damping medium to consume vibration energy. The utility model improves the damping performance of steel structure beam column connecting structure to enhance the anti -seismic performance and wind -resistance of steel structure building.

Description

Technical Field

[0001] This utility model relates to the field of steel structure building technology, specifically to a steel structure beam-column connection structure with shock absorber. Background Technology

[0002] In modern construction, steel structures are widely used in various building projects due to their advantages such as high strength, light weight, and fast construction speed. The beam-column connection in a steel structure is a critical component, and its reliability and stability directly affect the safety of the entire building structure. However, under dynamic loads such as earthquakes and strong winds, the beam-column connection can experience significant vibrations and stress concentrations, easily leading to damage and consequently affecting the overall stability and safety of the building structure.

[0003] Currently, existing steel structure beam-column connections typically employ traditional welding and bolting methods. While these methods ensure a certain level of connection strength, they are ineffective in vibration damping. When a building is subjected to vibration, the beam-column connections cannot effectively absorb and dissipate the vibration energy, allowing the vibration to be transmitted and amplified within the structure, increasing the risk of structural damage. Therefore, how to incorporate effective vibration damping devices into steel structure beam-column connections to improve the seismic and wind resistance of steel structures has become a pressing issue for those skilled in the art. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a steel beam-column connection structure with a vibration damper, thereby improving the vibration reduction effect of the steel beam-column connection structure.

[0005] The technical solution of this utility model is as follows: a steel beam-column connection structure with a vibration damper, comprising a steel beam and a steel column, wherein a vibration damper is provided between the steel beam and the steel column, the vibration damper comprising a shell, a piston, a piston rod and a damping medium, the shell being fixedly connected to the steel column, the piston being disposed inside the shell and slidably sealed to the shell, one end of the piston rod being fixedly connected to the piston, and the other end extending out of the shell and fixedly connected to the steel beam, the shell being filled with a damping medium, and the piston reciprocating within the shell under vibration, generating damping force by compressing the damping medium, thereby consuming vibration energy.

[0006] Furthermore, the steel beam is provided with a first connecting lug at its end, and the steel column is provided with a second connecting lug on its side. The first connecting lug and the second connecting lug are detachably connected by a bolt assembly.

[0007] Furthermore, both the first and second connecting ear plates have multiple bolt holes. The bolt assembly includes a bolt and a nut. The bolt passes through the bolt holes on the first and second connecting ear plates in sequence and is then threaded into the nut. This connection method facilitates installation and disassembly, and makes subsequent maintenance and repair easier.

[0008] Furthermore, the outer shell is fixed to the steel column by welding, ensuring the firmness of the connection between the shock absorber and the steel column; the piston rod is fixed to the steel beam by welding, ensuring the effective transmission of force between the shock absorber and the steel beam.

[0009] Furthermore, the damping medium is silicone oil, which has good viscosity-temperature characteristics and chemical stability, and can maintain stable damping performance under different temperature environments.

[0010] Furthermore, reinforcing ribs are provided at the connection between the steel beam and the steel column. One end of the reinforcing rib is fixedly connected to the steel beam, and the other end is fixedly connected to the steel column. The addition of reinforcing ribs can improve the strength and stability of the connection between the steel beam and the steel column, further enhancing the overall performance of the steel beam-column connection structure.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1) This utility model installs a shock absorber between the steel beam and the steel column. When the steel structure is subjected to vibration, the steel beam will displace relative to the steel column, driving the piston rod to move. The piston will reciprocate within the outer shell, generating damping force by compressing the damping medium. This effectively absorbs and consumes vibration energy, reduces vibration and stress concentration between the steel beam and the steel column, improves the shock absorption performance of the steel beam-column connection structure, and thus enhances the seismic and wind resistance performance of the steel structure building.

[0013] 2) This utility model uses bolt assemblies to detachably connect the first connecting ear plate and the second connecting ear plate, which facilitates installation and disassembly, and makes it convenient for later maintenance and repair; at the same time, the setting of the reinforcing rib plate further improves the strength and stability of the connection between the steel beam and the steel column, ensuring the reliability and safety of the steel structure beam-column connection structure. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of Example 2. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0018] Example 1

[0019] refer to Figure 1 The steel beam-column connection structure with shock absorber in this embodiment includes a steel beam 1 and a steel column 2. The end of the steel beam 1 is securely welded with a first connecting lug 3 using a full penetration welding process. This lug is made of Q355B low-alloy high-strength structural steel, and its thickness is determined to be 20mm through mechanical calculations to ensure connection strength. Similarly, a second connecting lug 4 is fixed to the side of the steel column 2 by welding. Both lugs underwent surface rust removal treatment before welding to enhance welding quality.

[0020] Four sets of bolt holes are symmetrically distributed on the first connecting lug 3 and the second connecting lug 4. Each set of bolt holes adopts a countersunk hole design, with the hole position accuracy controlled within ±0.5mm to ensure coaxiality during connection. The bolt assembly 5 includes 8.8 grade high-strength bolts and matching nuts. After the bolts pass through the corresponding bolt holes on the first connecting lug 3 and the second connecting lug 4, the nuts are tightened to the design torque value using a torque wrench to achieve a detachable connection. This connection method not only facilitates on-site installation and disassembly but also allows for quick replacement of damaged components during later maintenance and repair, significantly improving the operation and maintenance efficiency of the steel structure. Meanwhile, to prevent bolt loosening, the nuts adopt a double-nut anti-loosening design, and thread-locking agent is applied to the threaded areas to enhance the reliability of the connection.

[0021] A damper is installed between the steel beam 1 and the steel column 2. The damper adopts a double-outlet viscous damper structure, including a shell 61, a piston 62, a piston rod 63, and a damping medium 64.

[0022] The outer shell 61 is a cylindrical shell made of Q345B low-alloy high-strength structural steel. It is fixed to the flange of the steel column 2 by double-sided fillet welds, which ensures the firmness of the connection between the shock absorber and the steel column 2.

[0023] Piston 62 consists of a hard aluminum alloy piston body and a nitrile rubber sealing ring. The sealing ring is inserted into the piston ring groove by interference fit, forming a sliding seal connection with the inner wall of the outer shell 61. The sealing gap is controlled between 0.1-0.2mm, which ensures sealing performance while reducing frictional resistance. Piston rod 63 is made of 40Cr alloy steel. After quenching and tempering at both ends, the hardness reaches HRC32-36. One end is fastened to piston 62 by high-strength bolts, and the other end is fixed to the lower flange of steel beam 1 by bevel full penetration welding process. The weld has passed magnetic particle inspection to ensure effective force transmission between the shock absorber and steel beam 1.

[0024] The outer casing 61 is filled with a damping medium 64. In this embodiment, the damping medium 64 is silicone oil. Silicone oil has good viscosity-temperature characteristics and chemical stability, and can maintain stable damping performance under different temperature environments. To prevent medium leakage, a double-lip seal structure is provided at the part of the piston rod 63 that protrudes from the outer casing 61, and an automatic compensation pressure balancing device is configured. When the steel structure is subjected to vibration, the steel beam 1 will displace relative to the steel column 2, driving the piston rod 63 to move, causing the piston 62 to reciprocate within the outer casing 61. This generates damping force by compressing the damping medium 64, thereby consuming vibration energy.

[0025] Preferably, the first connecting ear plate 3 and the second connecting ear plate 4 are connected to the steel column 2 or the steel beam 1 by reinforcing ribs.

[0026] Example 2

[0027] like Figure 2 As shown in this embodiment, based on embodiment 1, a reinforcing rib 7 is also provided at the connection between the steel beam 1 and the steel column 2. One end of the reinforcing rib 7 is welded and fixed to the steel beam 1, and the other end is welded and fixed to the steel column 2. The setting of the reinforcing rib 7 can improve the strength and stability of the connection between the steel beam 1 and the steel column 2, and further enhance the overall performance of the steel beam-column connection structure.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. Steel structure beam-column connection structure with shock-absorbing damper, comprising a steel beam (1) and a steel column (2), characterized in that: A damping device is provided between the steel beam (1) and the steel column (2); the damping device includes a shell (61), a piston (62), a piston rod (63), and a damping medium (64); the shell (61) is fixedly connected to the steel column (2); the piston (62) is located inside the shell (61) and is slidably sealed to the shell (61); one end of the piston rod (63) is fixedly connected to the piston (62), and the other end extends out of the shell (61) and is fixedly connected to the steel beam (1); the shell (61) is filled with a damping medium (64); the piston (62) reciprocates inside the shell (61) under vibration.

2. The steel structure beam column connection structure with a shock absorbing damper according to claim 1, characterized by: The steel beam (1) is provided with a first connecting lug (3) at its end; the steel column (2) is provided with a second connecting lug (4) on its side; the first connecting lug (3) and the second connecting lug (4) are detachably connected by a bolt assembly (5).

3. The steel structure beam column connection structure with a shock absorbing damper according to claim 2, characterized by: The first connecting ear plate (3) and the second connecting ear plate (4) are provided with multiple bolt holes; the bolt assembly includes a bolt and a nut; the bolt passes through the bolt holes on the first connecting ear plate (3) and the second connecting ear plate (4) in sequence and is threadedly connected to the nut.

4. The steel structure beam column connection structure with a shock absorbing damper according to claim 1, characterized by: The outer shell (61) is fixed to the steel column (2) by welding; the piston rod (63) is fixed to the steel beam (1) by welding.

5. The steel structure beam column connection structure with a shock absorbing damper according to claim 1, characterized by: The damping medium (64) is silicone oil.

6. The steel structure beam column connection structure with a shock absorbing damper according to claim 1, characterized by: A reinforcing rib (7) is also provided at the connection between the steel beam (1) and the steel column (2); one end of the reinforcing rib (7) is fixedly connected to the steel beam (1), and the other end is fixedly connected to the steel column (2).

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