Section steel joint for seismic reinforcement of existing building

Abstract

The utility model discloses a structural steel node for seismic reinforcement of an existing building, which relates to the technical field of constructional engineering and comprises a box component and an energy consumption component. The box body assembly comprises a main box body, a hydraulic bin and an air pressure bin; damping oil is filled in the hydraulic bin; a first pushing piece is arranged in the air pressure bin; the energy consumption assembly comprises a connecting block and a second pushing piece; the connecting block is fixedly connected with the second pushing piece; when vibration occurs, a steel beam connected with the profile steel joint transmits the vibration to a connecting block, then the vibration is transmitted to a second pushing piece through an ejector rod, a piston slides in a hydraulic bin, the vibration is consumed, meanwhile, an air pressure bin is arranged, when damping oil is pushed, the first pushing piece is driven to move, and the damping oil is pushed to move. The air in the air pressure bin is compressed, so that the oil pressure of the damping oil is always kept within a reasonable range, a building structure is prevented from colliding with vibration under the condition of an earthquake, and the overall shock resistance of a building is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a steel node for earthquake-resistant reinforcement of an existing building. Background Art

[0002] Traditional concrete materials either use steel, or consider the shock absorption form of the swaying structure, or only consider the supporting function of the structure, while the combined use of wood and steel as renewable materials is less studied. The high degree of assembly of wood and steel fully utilizes the material performance advantages of wood and steel.

[0003] The existing patent (Announcement No.: CN117027174A) is a connection node and connection method that supports the H-shaped steel structure on the supporting plug plate by setting the connection tie rod and cooperating with the steel column connecting plate, and disperses the tensile pressure to reduce the node fracture, thereby increasing the stability of the steel structure during installation. It is characterized by being composed of a concrete steel column, a connection tie rod, an H-shaped steel beam, a steel beam connecting plate, a supporting plug plate, a steel column connecting plate, a torsion shear bolt, a steel column groove and a supporting slot. The concrete steel column is provided with a steel column groove, the steel column connecting plate is placed in the steel column groove, the connection tie rod is placed on one end of the steel column connecting plate, the steel beam connecting plate is placed on the other end of the steel column connecting plate, the steel beam connecting plate is provided with a supporting slot, the supporting plug plate is placed in the supporting slot, and the H-shaped steel beam is placed on the supporting plug plate.

[0004] During use, if the steel nodes in the above technical solution encounter earthquakes or other situations, they can only resist the vibrations through the strength of the building structure itself. In the process, the steel beams and related structural parts will be deformed and suffer metal fatigue, resulting in a reduction in the structural strength of the main building, thereby reducing the subsequent earthquake resistance of the entire building. Utility Model Content

[0005] The main purpose of the utility model is to provide a steel node for seismic reinforcement of existing buildings, which is used to solve the problem that the existing steel nodes, during use, resist the vibration head-on through the strength of the building structure itself, resulting in reduced structural strength of the building body and reduced seismic resistance.

[0006] To achieve the above purpose, the utility model provides a steel node for seismic reinforcement of an existing building, comprising:

[0007] The box assembly comprises a main box, a hydraulic chamber and a pneumatic chamber arranged in the main box; a guide rail is arranged on the outer wall of the main box, and guide grooves are arranged at the upper and lower ends of the main box respectively; damping oil is filled in the hydraulic chamber; a first pusher is arranged in the pneumatic chamber;

[0008] The energy-consuming component comprises a connecting block slidably mounted on a guide rail and a second pushing member movably arranged in a hydraulic compartment; the connecting block is fixedly connected to the second pushing member, and the upper and lower ends of the connecting block and the main box body are respectively detachably connected to the external structure; the connecting block moves toward the main box body under the action of an external force, so that the second pushing member squeezes the damping oil in the hydraulic compartment.

[0009] As a further improvement of the present invention, the hydraulic chamber is horizontally arranged in the main box body; the pneumatic chamber is vertically arranged in the main box body; and the hydraulic chamber is connected to the pneumatic chamber.

[0010] As a further improvement of the utility model, a slider is provided on the connecting block, and the slider is slidably connected to the guide rail; the second pushing member includes a second piston; the second piston is installed in the hydraulic compartment, and a push rod is provided between the second piston and the connecting block.

[0011] As a further improvement of the present invention, the first pushing member includes a first piston; the first piston is installed in the air pressure chamber.

[0012] As a further improvement of the utility model, guide rods are provided at intervals on the main box body; a return spring is sleeved on the guide rod; a connecting plate is provided on the connecting block; and the guide rod is slidably connected to the connecting plate.

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

[0014] When encountering vibration, the steel beam connected to the steel node transfers the vibration to the connecting block, and then transfers it to the second pusher through the push rod, so that the piston slides inside the hydraulic chamber and the vibration is consumed. At the same time, a pneumatic chamber is provided so that when the damping oil is pushed, the first pusher is driven to move, so that the gas in the pneumatic chamber is compressed, thereby ensuring that the oil pressure of the damping oil is always maintained within a reasonable range, avoiding the building structure from colliding head-on with the vibration in the event of an earthquake, thereby improving the overall earthquake resistance of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a steel node for seismic reinforcement of an existing building according to the utility model;

[0016] Figure 2 It is another overall structural schematic diagram of a steel node for seismic reinforcement of an existing building according to the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the main box of a steel node for seismic reinforcement of an existing building according to the utility model;

[0018] Description of reference numerals:

[0019] 1. Main box; 2. Hydraulic chamber; 3. Pneumatic chamber; 4. Guide rail; 5. Guide groove; 6. Damping oil; 7. First pusher; 8. Connecting block; 9. Second pusher; 10. Bolt hole; 11. Slider; 12. Push rod; 13. Through hole; 14. Screw hole; 15. Guide rod; 16. Reset spring; 17. Connecting plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In one embodiment, see Figure 1 , 2 3. The utility model provides a steel node for seismic reinforcement of an existing building, including a box assembly and an energy-absorbing assembly.

[0022] Among them, the box assembly includes a main box 1, a hydraulic chamber 2 and a pneumatic chamber 3 arranged in the main box 1, a guide rail 4 is arranged on the outer wall of the main box 1, and guide grooves 5 are respectively arranged at the upper and lower ends of the main box 1; the hydraulic chamber 2 is filled with damping oil 6; the pneumatic chamber 3 is provided with a first pusher 7; the energy-absorbing component includes a connecting block 8 slidably mounted on the guide rail 4, and a second pusher 9 movably arranged in the hydraulic chamber 2; the connecting block 8 is fixedly connected to the second pusher 9, and the connecting block 8 and the upper and lower ends of the main box 1 are respectively detachably connected to the external structure; the connecting block 8 moves toward the main box 1 under the action of external force, so that the second pusher 9 squeezes the damping oil 6 in the hydraulic chamber 2.

[0023] For further information, see Figure 3 The hydraulic chamber 2 is horizontally arranged in the main box body 1; the air pressure chamber 3 is vertically arranged in the main box body 1; the hydraulic chamber 2 is connected to the air pressure chamber 3.

[0024] Preferably, bolt holes 10 are respectively provided at the upper and lower ends of the main box body 1, and the main box body 1 is connected to the steel sections in the vertical direction at the steel section nodes by bolts.

[0025] Preferably, the guide rails 4 are fixedly mounted on the surrounding side walls of the main box body 1 , and the guide rails 4 are arranged in groups of two.

[0026] Preferably, the guide grooves 5 are fixedly mounted at the upper and lower ends of the main box body 1 respectively.

[0027] For further information, see Figure 2 ,3 A slider 11 is provided on the connecting block 8, and the slider 11 is slidably connected to the guide rail 4; the second pushing member 9 includes a second piston, the second piston is installed in the hydraulic chamber 2, and a push rod 12 is provided between the second piston and the connecting block 8.

[0028] Preferably, four groups of connecting blocks 8 and second pistons are provided, and the four groups of connecting blocks 8 and second pistons are distributed around the main box body 1 at intervals.

[0029] Preferably, two groups of through holes 13 are provided on the second piston.

[0030] Preferably, a screw hole 14 is provided on the connection block 8, and the connection block 8 is connected to the external steel structure through the outer wall bolt transmission screw hole 14.

[0031] In the above arrangement, when subjected to vibration, the vibration is transmitted to the connecting block 8, and the connecting block 8 pushes the push rod 12, so that the second piston block slides inside the hydraulic chamber 2, thereby pushing the damping oil 6, so that the damping oil 6 flows through the through hole 13 on the second piston. The high viscosity of the damping oil 6 causes the piston to encounter greater resistance during the sliding process inside the hydraulic chamber 2, thereby consuming energy for the vibration.

[0032] For further information, see Figure 3 The first pusher 7 includes a first piston, which is installed in the air pressure chamber 3.

[0033] Preferably, the air pressure chamber 3 is filled with nitrogen.

[0034] In the above-mentioned setting, when the second piston slides rapidly inside the hydraulic chamber 2, the damping oil 6 is rapidly pushed by the second piston, which causes the damping oil 6 inside the hydraulic chamber 2 to be unevenly distributed. The density of the damping oil 6 in some areas is reduced to produce a cavitation effect, which will cause the resistance of the damping oil 6 to the second piston to be reduced, affecting the shock absorption effect. By setting up the air pressure chamber 3, when the damping oil 6 is pushed by the second piston, the pressure of the damping oil 6 becomes larger. At this time, the first piston is pushed, causing the nitrogen to be compressed, thereby ensuring that the oil pressure of the damping oil 6 is always maintained within a reasonable range.

[0035] For further information, see Figure 2 The main box body 1 is provided with guide rods 15 at intervals, and a return spring 16 is sleeved on the guide rods 15; a connecting plate 17 is provided on the connecting block 8, and the guide rods 15 are slidably connected to the connecting plate 17.

[0036] Preferably, four groups of guide rods 15 are arranged around the top rod 12 at intervals, the size of the connecting plate 17 is larger than the size of the connecting block 8, and a sliding hole is provided on the connecting plate 17, and the end of the guide rod 15 away from the main box body 1 slides through the sliding hole.

[0037] In the above arrangement, when the steel beam is vibrated, the steel beam pushes the connecting block 8 to slide on the outer wall of the guide rod 15, so that the connecting block 8 drives the sliding block to slide on the outer wall of the slide rail. At this time, the connecting block 8 pushes the top rod 12, and the guide rod 151 ensures the sliding direction of the connecting block 8, and the slide rail allows the connecting block 8 to slide while having blocking strength.

[0038] In this embodiment, when encountering vibration, the steel beam connected to the steel node transmits the vibration to the connecting block 8, and then transmits it to the second piston through the top rod 12, so that the piston slides inside the hydraulic chamber 2, so that the vibration is consumed, thereby avoiding the building structure from colliding head-on with the vibration in the event of an earthquake, and improving the overall earthquake resistance of the building.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel node for seismic reinforcement of an existing building, characterized in that: include: The box assembly comprises a main box (1), a hydraulic chamber (2) and a pneumatic chamber (3) arranged in the main box (1); a guide rail (4) is arranged on the outer wall of the main box (1), and guide grooves (5) are arranged at the upper and lower ends of the main box (1); damping oil (6) is filled in the hydraulic chamber (2); and a first pusher (7) is arranged in the pneumatic chamber (3); The energy dissipation component comprises a connection block (8) slidably mounted on a guide rail (4) and a second pusher (9) movably arranged in a hydraulic chamber (2); the connection block (8) is fixedly connected to the second pusher (9), and the upper and lower ends of the connection block (8) and a main box body (1) are respectively detachably connected to an external structure; the connection block (8) moves toward the main box body (1) under the action of an external force, so that the second pusher (9) squeezes the damping oil (6) in the hydraulic chamber (2).

2. The steel node for seismic reinforcement of existing buildings according to claim 1, characterized in that: The hydraulic chamber (2) is arranged horizontally in the main box body (1); the pneumatic chamber (3) is arranged vertically in the main box body (1); and the hydraulic chamber (2) is connected to the pneumatic chamber (3).

3. The steel node for seismic reinforcement of existing buildings according to claim 2, characterized in that: The connecting block (8) is provided with a sliding block (11), and the sliding block (11) is slidably connected to the guide rail (4); the second pushing member (9) comprises a second piston; the second piston is installed in the hydraulic chamber (2), and a push rod (12) is provided between the second piston and the connecting block (8).

4. The steel node for seismic reinforcement of existing buildings according to claim 3, characterized in that: The first pushing member (7) comprises a first piston; the first piston is installed in the air pressure chamber (3).

5. The steel node for seismic reinforcement of existing buildings according to claim 4, characterized in that: Guide rods (15) are arranged at intervals on the main box body (1); a return spring (16) is sleeved on the guide rod (15); a connecting plate (17) is arranged on the connecting block (8); and the guide rod (15) is slidably connected to the connecting plate (17).

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