An anti-seismic method for steel structures used in prefabricated buildings

Abstract

The present invention relates to a seismic resistance method for steel structures used in prefabricated buildings and belongs to the technical field of building seismic resistance. It includes a building steel structure and seismic reinforcement components. The seismic reinforcement components include two symmetrically distributed and hinged reinforcement members and fixed clamping seats for connecting the reinforcement members to the building steel structure. The fixed clamping seats are slidably arranged on the reinforcement members, and seismic warning devices are connected to the opposite sides of the two reinforcement members. The angle between the two reinforcement members of the present invention can be adjusted, ensuring that the present invention can reinforce and connect building steel structures at different angles and further improving the applicability of the present invention. Secondly, the fixed clamping seats in the present invention are used for connecting to the building steel structure, and the fixed clamping seats can clamp and fix building steel structures with different thicknesses without drilling holes in the body of the building steel structure, greatly ensuring the stability of the building steel structure itself.

Description

Technical Field

[0001] The present invention relates to the technical field of building earthquake resistance, and in particular to an earthquake resistance method for steel structures used in assembled buildings. Background Art

[0002] Earthquake resistance of steel structures for buildings refers to the ability of buildings to remain stable and safe during earthquakes through design and construction techniques.

[0003] After being reinforced with earthquake-resistant supports, the building's water supply and drainage, fire protection, heating, ventilation, air conditioning, gas, heat, electricity, communications and other mechanical and electrical engineering facilities can reduce earthquake damage, reduce and prevent the occurrence of secondary disasters as much as possible when encountering an earthquake with the seismic fortification intensity of the region, thereby achieving the goal of reducing casualties and property losses.

[0004] For example, the Chinese patent with publication number CN112267578B discloses an anti-seismic device for steel structures used in prefabricated buildings, which relates to the technical field of anti-seismic steel structure technology. It includes a first fixing mechanism, one end of which is welded to a second fixing mechanism. Through the cooperation of various accessories, the changes in the internal stress of the steel structure can be monitored while the steel structure nodes are reinforced. When the internal stress of the steel structure nodes changes greatly due to fracture, the device will transmit a warning signal to the inside of the corresponding monitoring room on the ground to alarm the monitoring personnel, thereby improving the safety performance of the device, and at the same time emitting warning light and warning sound to warn the maintenance personnel, thereby making it more convenient for the maintenance personnel to carry out maintenance, improving maintenance efficiency, and reducing the maintenance work intensity. By setting the first fixing mechanism and the second fixing mechanism, the device can be relatively simple to apply to steel structures of different sizes, thereby greatly improving the scope of application of the device.

[0005] However, the above-mentioned seismic resistant device for steel structure of prefabricated building still has some shortcomings in actual use:

[0006] 1. In the above-mentioned prior art, the screws connect the positioning ring and the steel structure, and the positioning ring can move. Therefore, after the positioning ring moves, it is necessary to punch holes in the steel structure before the screws can be inserted and installed between the positioning ring and the steel structure. Therefore, punching holes in the steel structure body will reduce the strength of the entire steel structure and affect the quality of the steel structure itself.

[0007] 2. Secondly, in the prior art, the first fixing mechanism is a direct structure, which cannot be adjusted in angle. Therefore, it has a certain degree of uniformity for different prefabricated building steel structures, resulting in poor applicability.

[0008] 3. Then, in the prior art, the alarm in the prior art mainly senses stress through a pressure sensor, so the pressure sensor needs to work and needs to be powered by an external power source at all times, thereby consuming a large amount of electricity.

[0009] Therefore, based on the above-stated viewpoint, there is still room for improvement in the existing seismic-resistant devices for steel structures used in prefabricated buildings. Summary of the Invention

[0010] In order to solve the above problems, the present invention provides a method for seismic resistance of steel structures for prefabricated buildings.

[0011] In addition, the present invention also provides a seismic-resistant device for a steel structure for an assembled building, which includes a building steel structure and is arranged on the ground.

[0012] An anti-seismic reinforcement component is installed at the node of the building steel structure and is used to reinforce the anti-seismic effect of the building steel structure. The anti-seismic reinforcement component includes two symmetrically distributed and mutually hinged reinforcement pieces and a fixed bracket for connecting the reinforcement pieces to the building steel structure. The fixed bracket is slidably arranged on the reinforcement piece.

[0013] The opposite sides of the two reinforcements are connected with an anti-seismic alarm device, and the inner side of the anti-seismic alarm device is provided with a detection lead pendant for detecting whether the building steel structure is deformed and vibrated.

[0014] Preferably, the two reinforcements are hinged to each other at one end away from the seismic alarm, and a reinforcement plate clamp is provided at one end of the reinforcement on one side, and a hinge hole is provided on the reinforcement plate clamp, and a hinge hole is also provided on the reinforcement on the other side. The hinge hole on the reinforcement coincides with the hinge hole on the reinforcement plate clamp and a reinforcement shaft is passed through them together, and reinforcement nuts are installed on both sides of the reinforcement shaft by threaded connection.

[0015] Preferably, the fixed base includes a cross block, an extension plate, a locking connecting shaft and a locking nut, the cross block is symmetrically slidably arranged on the reinforcement, the extension plate is installed on both sides of the height direction of the cross block, the locking connecting shaft slides through the two extension plates on the cross block, and the locking nut is arranged on both sides of the length direction of the locking connecting shaft by threaded connection.

[0016] Preferably, the extension plate is provided with two strip-shaped sliding grooves for adjusting the position of the locking connecting shaft, and a resisting threaded rod is installed on the side wall of the extension plate by means of a threaded connection, and the resisting threaded rod is movably pressed against the locking connecting shaft.

[0017] Preferably, an adjusting threaded rod for adjusting the position of the cross-shaped block is further arranged between the reinforcing member and the cross-shaped block. The adjusting threaded rod is rotatably arranged on the reinforcing member through a bearing, and the adjusting threaded rods are distributed in parallel along the length direction of the reinforcing member. The cross-shaped block is in threaded connection with the adjusting threaded rod. Limiting columns for limiting the cross-shaped block are further arranged on both sides of the adjusting threaded rod.

[0018] Preferably, the adjusting threaded rod is of a double-threaded structure.

[0019] Preferably, a triggering component for preventing excessive power consumption caused by long-term detection of the alarm device is further arranged in the earthquake-resistant warning device. The triggering component includes a first rope, a fixed ball, a second rope, a third rope, a metal induction sheet, a sensing metal strip and a power supply. The fixed ball is connected to the inner wall of the earthquake-resistant warning device through the first rope and is vertically distributed downward. The bottom of the fixed ball is connected to a detection plumb bob through the second rope. One end of the third rope is connected to the fixed ball, and a metal induction sheet is installed at the other end. A reset insulating spring is installed at the end of the metal induction sheet away from the third rope, and the reset insulating spring is installed on the inner wall of the earthquake-resistant warning device. The sensing metal strips are symmetrically arranged around the metal induction sheet, and an alarm indicating lamp is connected to one of the sensing metal strips. The other end of the sensing metal strip is connected to a power supply.

[0020] Preferably, support frames are hingedly installed at both the upper and lower ends of the two earthquake-resistant warning devices on the two reinforcing members. The support frames on the two earthquake-resistant warning devices are misaligned and cross-distributed.

[0021] Preferably, a plurality of clamping holes are equidistantly formed in the support frame, and a support threaded rod is inserted and installed in the overlapping clamping holes of the support frames on the two earthquake-resistant warning devices. A plurality of support nuts are arranged on the support threaded rod.

[0022] In addition, the present invention also provides a seismic resistance method for steel structures in prefabricated buildings. The seismic resistance method for building steel structures is as follows:

[0023] S1. Product adjustment: First, abut the two reinforcing members against the nodes of the building steel structure, and then adjust the positions of the fixed clamping seats to ensure that the two fixed clamping seats are evenly distributed on the building steel structure.

[0024] S2. Non-destructive reinforcement: Rotate the fixed clamping seats to connect them to the building steel structure, and ensure that the two fixed clamping seats make the reinforcing members completely fit on the surface of the building steel structure.

[0025] S3. Alarm activation: The seismic alarm is installed on the reinforcement. After the reinforcement is installed on the building steel structure, the lead pendant is naturally drooped to activate the seismic alarm. When the building steel structure is deformed or tilted, or when the reinforcement is loosened from the building steel structure, the seismic alarm is activated, and an alarm sound is given and a light is turned on.

[0026] S4. Reinforcement treatment: When the earthquake warning device sounds an alarm, check it, solve the problem in time, and cancel the alarm.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The seismic reinforcement component in the present invention is mainly installed on the surface of the building steel structure. There are two reinforcement members in the present invention, and one end of the two reinforcement members is hinged to each other, so that the angle between the two reinforcement members can be adjusted, ensuring that the present invention can reinforce and connect building steel structures at different angles, further improving the applicability of the present invention.

[0029] 2. The fixing bracket in the present invention is mainly used for connecting the present invention with the building steel structure, and the fixing bracket can quickly clamp and fix the building steel structures of different thicknesses without drilling holes in the main body of the building steel structure, which greatly ensures the stability of the building steel structure itself.

[0030] 3. In the prior art, for the seismic resistance devices for steel structures used in prefabricated buildings, the devices generally used for sensing vibration and seismic resistance need to be powered on for a long time. For example, the existing pressure sensor needs to sense the status of the building steel structure in real time. Therefore, long-term power supply consumes a lot of electricity. If batteries are used for power supply, the batteries need to be replaced regularly in a short period of time, so the operation is complicated. The present invention can save power for power supply equipment such as batteries under normal conditions. When the trigger component is triggered, power supply equipment such as batteries starts to supply power, causing the alarm indicator light to light up and the alarm sound to sound, reminding maintenance personnel to check and maintain in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings and examples.

[0032] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the hinged structure between two reinforcement members of the present invention.

[0034] Figure 3 It is an exploded view of the hinged structure between the two reinforcement members of the present invention.

[0035] Figure 4It is a schematic structural diagram of the first perspective of the fixed card seat of the present invention.

[0036] Figure 5 It is a schematic structural diagram of the second perspective of the fixed card seat of the present invention.

[0037] Figure 6 It is a schematic structural diagram between the support frames of the present invention.

[0038] Figure 7 It is a schematic structural diagram of the trigger component of the present invention.

[0039] Figure 8 It is a flowchart of a seismic resistance method for a steel structure used in prefabricated buildings according to the present invention.

[0040] In the figure, 1, building steel structure; 2, seismic reinforcement component; 20, reinforcement member; 21, fixed card seat; 3, seismic warning device; 30, detection plumb bob; 200, reinforcement plate clamp; 201, hinge hole; 202, reinforcement shaft; 203, reinforcement nut; 210, cross-shaped block; 211, extension plate; 212, locking connection shaft; 213, locking nut; 214, strip-shaped chute; 215, abutting threaded rod; 216, adjusting threaded rod; 217, limiting column; 4, trigger component; 40, first rope; 41, fixed ball; 42, second rope; 43, third rope; 44, metal induction sheet; 45, sensing metal strip; 46, power supply; 47, alarm indicating lamp; 48, reset insulating spring; 60, support frame; 61, card hole; 62, support threaded rod; 63, support nut. Detailed implementation manners

[0041] The following will Figures 1-8 describe the embodiments of the present invention in detail, but the present invention can be implemented in many different ways defined and covered by the claims.

[0042] The embodiment of the present application discloses a seismic resistance method for a steel structure used in prefabricated buildings; it is mainly used to solve the problems in the prior art that when connecting with the building steel structure 1, it is necessary to drill holes in the building steel structure 1 itself, which will reduce the strength of the entire building steel structure 1 and affect the quality of the building steel structure 1 itself; secondly, the prior art cannot adjust the angle, so it has a certain singularity for different building steel structures 1, resulting in poor applicability.

[0043] Then, in the prior art, the alarm mainly senses stress through a pressure sensor, senses the change of the pressure difference to achieve the alarm. Therefore, the pressure sensor needs to work in real time and also needs an external power supply to supply power to it at all times, thus consuming a large amount of electricity. The trigger component 4 in the present invention can ensure that the power supply 46 in the earthquake-resistant warning device 3 is in a standby state for a long time, avoiding power consumption. When the trigger component 4 senses that the building steel structure 1 is deformed or the device in the present invention is loose, the trigger component 4 can be triggered. At this time, the power supply 46 powers on the alarm indicating lamp 47 to start the alarm. Embodiment

[0044] Refer to Figure 1 and Figure 2 As shown in, an earthquake-resistant device for prefabricated building steel structures includes a building steel structure 1, which is arranged on the ground. The building steel structure 1 is mainly in a frame shape, and reinforcing ribs of different shapes are arranged on the frame shape.

[0045] The earthquake-resistant reinforcement member 2 is installed at the joints of the building steel structure 1 for strengthening the earthquake-resistant effect of the building steel structure 1. The earthquake-resistant reinforcement member 2 includes two symmetrically distributed and hinged reinforcement members 20 and a fixed card seat 21 for fixing the reinforcement member 20 and the building steel structure 1 to the building steel structure 1. The fixed card seat 21 is slidably arranged on the reinforcement member 20.

[0046] The earthquake-resistant reinforcement member 2 is mainly installed on the surface of the building steel structure 1. There are two reinforcement members 20 in the present invention, and one end of the two reinforcement members 20 is hinged to each other, so that the angle between the two reinforcement members 20 can be adjusted, further improving the applicability of the present invention.

[0047] The fixed card seat 21 is mainly used for connecting the present invention to the building steel structure 1, and the fixed card seat 21 can quickly clamp and fix the building steel structure 1 with different thicknesses without drilling the main body of the building steel structure 1, greatly ensuring the stability of the building steel structure 1 itself.

[0048] Earthquake-resistant warning devices 3 are fixedly connected to the opposite sides of the two reinforcement members 20. An inspection plumb bob 30 for detecting whether the steel structure is deformed and vibrated is arranged inside the earthquake-resistant warning device 3.

[0049] The earthquake-resistant warning device 3 is arranged on the reinforcement member 20. When the reinforcement member 20 is loose from the building steel structure 1, it will cause an alarm to remind the maintenance personnel to perform maintenance; when the building steel structure 1 is deformed, it will also cause an alarm to remind the maintenance personnel to perform maintenance on it.

[0050] Refer to Figure 2 and Figure 3As shown in the figure, it is a schematic structural diagram of the hinge connection between two reinforcing members 20 in this embodiment; the ends of the two reinforcing members 20 away from the earthquake warning device 3 are hinged to each other, and a reinforcing plate clamp 200 is provided at one end of one of the reinforcing members 20. A hinge hole 201 is opened on the reinforcing plate clamp 200, and a hinge hole 201 is also opened on the other reinforcing member 20. The hinge hole 201 on the reinforcing member 20 coincides with the hinge hole 201 on the reinforcing plate clamp 200 and a reinforcing shaft 202 is passed through them together. Reinforcing nuts 203 are installed on both sides of the reinforcing shaft 202 by means of threaded connection.

[0051] The two reinforcing members 20 are connected by the reinforcing shaft 202 and the reinforcing nuts 203. If one of the reinforcing members 20 is damaged or deformed, it can be disassembled through the cooperation of the reinforcing shaft 202 and the reinforcing nuts 203 for replacement and maintenance.

[0052] Refer to Figure 2 and Figure 4 As shown in the figure, it is a schematic structural diagram of the connection between the building steel structure 1 and the reinforcing member 20; the fixed card seat 21 includes a cross-shaped block 210, an extension plate 211, a locking connection shaft 212 and a locking nut 213. The cross-shaped block 210 is symmetrically and slidably arranged on the reinforcing member 20. The extension plate 211 is installed on both sides of the cross-shaped block 210 in the height direction. The locking connection shaft 212 slidably penetrates through the two extension plates 211 on the cross-shaped block 210, and the locking nuts 213 are arranged on both sides of the locking connection shaft 212 in the length direction by means of threaded connection.

[0053] It should be noted that a cross-shaped groove for the cross-shaped block 210 to slide is opened on the reinforcing member 20 for the two symmetrical cross-shaped blocks 210 to slide relative to each other, and the positions of the two cross-shaped blocks 210 are adjusted to ensure the tightness of the fixation between the reinforcing member 20 and the building steel structure 1.

[0054] In the initial state, the locking connection shaft 212 on the extension plate 211 is not inserted into the strip-shaped chute 214 on the extension plate 211. After the two reinforcing members 20 are abutted against the building steel structure 1, the locking connection shaft 212 is inserted into the strip-shaped chute 214 on the extension plate 211, and then the two locking nuts 213 are rotated so that the two locking nuts 213 are abutted against the outer wall of the extension plate 211. At this time, the extension plate 211, the locking connection shaft 212 and the locking nuts 213 realize the fixation between the reinforcing member 20 and the building steel structure 1.

[0055] Refer to Figure 4 and Figure 5As shown in the figure, it is a schematic structural diagram of the adjustment of the cross-shaped block 210 in the reinforcement member 20 in this embodiment; an adjustment threaded rod 216 for adjusting the position of the cross-shaped block 210 is further provided between the reinforcement member 20 and the cross-shaped block 210. The adjustment threaded rod 216 is rotatably arranged on the reinforcement member 20 through a bearing, and the adjustment threaded rod 216 is distributed parallel to the length direction of the reinforcement member 20. The cross-shaped block 210 is threadedly connected to the adjustment threaded rod 216, and the adjustment threaded rod 216 is a double-threaded structure.

[0056] During the specific implementation process, by rotating the adjustment threaded rod 216, the two symmetrically distributed cross-shaped blocks 210 on the adjustment threaded rod 216 can move relatively, so as to ensure that the position of the cross-shaped block 210 and the extension plate 211 on the cross-shaped block 210 can be adjusted. Since the surface of the building steel structure 1 is not all in a smooth state and there are protrusions in some places, the adjustment threaded rod 216 can be used to ensure that the cross-shaped block 210 and the extension plate 211 are adjusted to a smooth and protrusion-free position on the building steel structure 1, so as to ensure the connection stability between the reinforcement member 20 and the building steel structure 1.

[0057] Refer to Figure 6 and Figure 7 As shown in the figure, it is a schematic structural diagram of the structure for triggering the operation of the alarm indicating lamp 47 in the present invention; a triggering component 4 for preventing excessive power consumption caused by long-term detection of the alarm device is further provided in the earthquake-resistant warning device 3. The triggering component 4 includes a first rope 40, a fixed ball 41, a second rope 42, a third rope 43, a metal induction sheet 44, a sensing metal strip 45 and a power source 46; the fixed ball 41 is connected to the inner wall of the earthquake-resistant warning device 3 through the first rope 40 and is vertically distributed downward. The bottom of the fixed ball 41 is connected to the detection plumb bob 30 through the second rope 42. One end of the third rope 43 is connected to the fixed ball 41, and a metal induction sheet 44 is installed at the other end. A reset insulating spring 48 is installed at the end of the metal induction sheet 44 away from the third rope 43, and the reset insulating spring 48 is installed on the inner wall of the earthquake-resistant warning device 3. The sensing metal strips 45 are symmetrically arranged around the metal induction sheet 44, and an alarm indicating lamp 47 is connected to one of the sensing metal strips 45, and the other end of the sensing metal strip 45 is connected to the power source 46.

[0058] In the prior art, for the earthquake-resistant device of the building steel structure 1, generally, the devices for sensing vibration and earthquake resistance need to be powered on for a long time. For example, the existing pressure sensors need to sense the state of the building steel structure 1 in real time. Therefore, long-term power-on consumes a large amount of electricity. If the battery is used for power supply, the battery needs to be replaced regularly in a short time, so the operation is complicated.

[0059] The present invention can save power for power supply devices such as batteries under normal conditions. After the trigger component 4 is triggered, the power supply devices such as batteries start to supply power, causing the alarm indicator light 47 to light up, and at the same time, an alarm sound will sound to remind the maintenance personnel to check and maintain in time.

[0060] In the specific implementation process, when the node of the building steel structure 1 breaks and causes the building steel structure 1 to deform, at this time, the detection plumb bob 30 in the seismic warning device 3 will be in an inclined state. At this time, the detection plumb bob 30 will pull the metal induction sheet 44 to move to one side through the fixed ball 41. At this time, after the metal induction sheet 44 is displaced, it will contact the surrounding sensing metal strip 45. At this time, the state between the sensing metal strip 45, the metal induction sheet 44 and the alarm indicator light 47 changes from an open circuit state to a closed circuit state. At this time, the power in the power supply 46 will act on the alarm indicator light 47 through the metal induction sheet 44 and the sensing metal strip 45, causing the alarm indicator light 47 to light up, and an alarm sound will sound to remind the maintenance personnel.

[0061] See Figure 5 As shown, at the upper and lower ends of the two seismic warning devices 3 on the two reinforcement members 20, support frames 60 are also hingedly installed. The support frames 60 on the two seismic warning devices 3 are staggered and distributed in a cross shape.

[0062] After the two reinforcement members 20 are installed on the building steel structure 1, because the two reinforcement members 20 are hinged structures, they cannot play a role in support and reinforcement. At this time, the support frame 60 is needed to support the two reinforcement members 20. A rhombus structure is formed between the support frame 60 and the reinforcement member 20 to support and reinforce the building steel structure 1 and prevent the entire building steel structure 1 from breaking.

[0063] Look again Figure 6 and Figure 7 As shown, a number of card holes 61 are equidistantly opened on the support frame 60, and a support screw rod 62 is inserted and installed in the overlapping card holes 61 of the support frames 60 on the two seismic warning devices 3. A number of support nuts 63 are provided on the support screw rod 62.

[0064] It should be noted that the support frames 60 are symmetrically arranged on the two reinforcement members 20, and the main purpose is to ensure the support stability of the support frames 60 after crossing for the reinforcement members 20.

[0065] After the reinforcement member 20 is fixed on the building steel structure 1, the support frames 60 on the two reinforcement members 20 are crossed with each other. At this time, ensure that the card holes 61 on the crossed support frames 60 overlap each other. After the support screw rod 62 is inserted and installed into the overlapping card holes 61 on the two support frames 60, the support nut 63 is installed on the support screw rod 62; at this time, a quadrilateral structure is formed between the support frame 60 and the reinforcement member 20.

[0066] Example 2: On the basis of Example 1, in order to further improve the adaptability of the present invention, the present invention also proposes to adjust the position of the locking connecting shaft 212 on the extension plate 211, and adjust the position of the cross block 210. By adjusting the position of the cross block 210, it is ensured that the two ends and the middle body of the reinforcement 20 can fit on the surface of the building steel structure 1. The position adjustment of the locking connecting shaft 212 is to ensure that the building steel structures 1 of different thicknesses are clamped and reinforced.

[0067] Replay Figure 4 and Figure 5 As shown, in order to further ensure that two strip-shaped grooves 214 for adjusting the position of the locking connecting shaft 212 are opened on the extension plate 211, a resisting threaded rod 215 is installed on the side wall of the extension plate 211 by a threaded connection, and the resisting threaded rod 215 can be movably pressed against the locking connecting shaft 212.

[0068] It should be noted that when the reinforcement 20 is against the surface of the building steel structure 1, the extension plate 211 on the reinforcement 20 is inserted into the two ends of the building steel structure 1. At this time, the locking connection shaft 212 is installed in the bar slide groove 214 on the extension plate 211, and then the interference threaded rod 215 is rotated. It can ensure that the interference threaded rod 215 will always contact the locking connection shaft 212 to the surface of the building steel structure 1, thereby avoiding shaking between the building steel structure 1 and the extension plate 211, which affects the reinforcement effect of the entire reinforcement 20.

[0069] Therefore, the connection between the reinforcement 20 and the extension plate 211 is mainly achieved by squeezing the extension plate 211 through the locking connecting shaft 212 and the locking nut 213 , so that the building steel structure 1 is clamped by the extension plate 211 .

[0070] See Figure 8 As shown, in addition, the present invention also provides a method for seismic resistance of a prefabricated steel structure for a building, and a method for seismic resistance of a building steel structure 1, as shown below:

[0071] S1. Product adjustment: First, place the two reinforcements 20 against the nodes of the building steel structure 1, then rotate the adjustment threaded rod, and the adjustment threaded rod 216 drives the two cross-shaped blocks 210 at its upper end to move relative to each other, so as to adjust the position of the extension plate 211 connected to the cross-shaped block 210, and ensure that the extension plate 211 can be located on the smooth and flat part of the building steel structure 1, and finally ensure that the two fixed brackets 21 are evenly distributed on the building steel structure 1.

[0072] S2. Reinforced connection: The building steel structure 1 is then clamped and fixed by the locking connecting shaft 212 and the extension plate 211, and the locking connecting shaft 212 is limited and squeezed by the contact threaded rod 215 to prevent the reinforcement 20 from falling off or shaking, so that it is connected to the building steel structure 1, and ensure that the two fixing brackets 21 make the reinforcement 20 completely fit the surface of the building steel structure 1.

[0073] S3. Alarm activation: The earthquake-resistant alarm device 3 is set on the reinforcement 20. When the reinforcement 20 is connected to the building steel structure 1, the detection lead pendant 30 will droop naturally. When the node of the building steel structure 1 breaks and causes the building steel structure 1 to deform, the detection lead pendant 30 in the earthquake-resistant alarm device 3 will be in a tilted state. At this time, the detection lead pendant 30 will pull the metal sensing piece 44 to one side through the fixed ball 41. At this time, the metal sensing piece 44 will contact the surrounding sensing metal strip 45 after the displacement. At this time, the sensing metal strip 45, the metal sensing piece 44 and the alarm indicator light 47 change from a disconnected state to a connected state. At this time, the electricity in the power supply 46 will pass through the metal sensing piece 44 and the sensing metal strip 45 and finally act on the alarm indicator light 47, causing the alarm indicator light 47 to light up, and an alarm sound will sound to remind the maintenance personnel.

[0074] S4. Reinforcement treatment: After the earthquake warning device 3 sounds an alarm, it is checked, and any problems that arise are promptly resolved, and the alarm is lifted.

[0075] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0076] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A seismic device for prefabricated buildings made of steel structures, characterized in that: It includes a building steel structure (1) which is set on the ground; and seismic reinforcement components (2) which are installed at the joints of the building steel structure (1) for reinforcing the seismic effect of the building steel structure (1). The seismic reinforcement components (2) include two symmetrically distributed and hinged reinforcement members (20) and fixed clamping seats (21) for connecting the reinforcement members (20) to the building steel structure (1). The fixed clamping seats (21) are slidably arranged on the reinforcement members (20); on the opposite sides of the two reinforcement members (20), seismic warning devices (3) are connected. Inside the seismic warning devices (3), detection plumb bobs (30) are arranged for detecting whether the building steel structure (1) is deformed and vibrating. The fixed clamping seats (21) include cross-shaped blocks (210), extension plates (211), locking connecting shafts (212) and locking nuts (213). The cross-shaped blocks (210) are symmetrically and slidably arranged on the reinforcement members (20). The extension plates (211) are installed on both sides of the cross-shaped blocks (210) in the height direction. The locking connecting shafts (212) slidably penetrate through the two extension plates (211) on the cross-shaped blocks (210), and the locking nuts (213) are arranged on both sides of the locking connecting shafts (212) in the length direction by means of threaded connection. On the extension plates (211), two strip-shaped chutes (214) for adjusting the positions of the locking connecting shafts (212) are formed. On the side walls of the extension plates (211), abutting threaded rods (215) are installed by means of threaded connection. The abutting threaded rods (215) are movably abutted against the locking connecting shafts (212). Between the reinforcement members (20) and the cross-shaped blocks (210), adjusting threaded rods (216) for adjusting the positions of the cross-shaped blocks (210) are further arranged. The adjusting threaded rods (216) are rotatably arranged on the reinforcement members (20) through bearings, and the adjusting threaded rods (216) are distributed parallel to the length direction of the reinforcement members (20). The cross-shaped blocks (210) are threadedly connected to the adjusting threaded rods (216). On both sides of the adjusting threaded rods (216), limit posts (217) for limiting the cross-shaped blocks (210) are arranged. On the upper and lower ends of the two seismic warning devices (3) on the two reinforcement members (20), support frames (60) are also hingedly installed. The support frames (60) on the two seismic warning devices (3) are staggered and cross-distributed. On the support frames (60), a number of clamping holes (61) are equidistantly formed. Inside the overlapping clamping holes (61) of the support frames (60) on the two seismic warning devices (3), support threaded rods (62) are inserted and installed. On the support threaded rods (62), a number of support nuts (63) are arranged.

2. The aseismic device for steel structure of prefabricated building according to claim 1, characterized in that: The two reinforcing members (20) are hinged to each other at one end away from the anti-seismic alarm (3), and one end of the reinforcing member (20) is provided with a reinforcing plate clamp (200), and a hinge hole (201) is provided on the reinforcing plate clamp (200). The reinforcing member (20) on the other side is also provided with a hinge hole (201). The hinge hole (201) on the reinforcing member (20) coincides with the hinge hole (201) on the reinforcing plate clamp (200) and a reinforcing shaft (202) is provided through both sides of the reinforcing shaft (202). Reinforcing nuts (203) are installed on both sides of the reinforcing shaft (202) by means of threaded connection.

3. The seismic device for steel structures used in prefabricated buildings according to claim 1, characterized in that: The adjusting threaded rod (216) is a bidirectional threaded structure.

4. An earthquake-resistant device for steel structures used in prefabricated buildings according to claim 1, characterized in that: The anti-seismic alarm device (3) is also provided with a trigger component (4) for preventing the alarm device from excessively consuming electricity due to long-term detection. The trigger component (4) includes a No. 1 rope (40), a fixed ball (41), a No. 2 rope (42), a No. 3 rope (43), a metal sensor sheet (44), a sensing metal strip (45) and a power supply (46); the fixed ball (41) is connected to the inner wall of the anti-seismic alarm device (3) through the No. 1 rope (40) and is vertically distributed downward. The bottom of the fixed ball (41) is connected to the detection lead pendant (30) through the No. 2 rope (42). One end of the No. 3 rope (43) is connected to the fixed ball (41), and the other end is installed with a metal sensing piece (44). The end of the metal sensing piece (44) away from the No. 3 rope (43) is installed with a reset insulating spring (48). The reset insulating spring (48) is installed on the inner wall of the anti-seismic alarm (3). The sensing metal strip (45) is symmetrically arranged on the periphery of the metal sensing piece (44), and an alarm indicator light (47) is connected to the sensing metal strip (45) on one side. The other end of the sensing metal strip (45) is connected to a power supply (46).

5. A seismic resistance method for steel structures used in prefabricated buildings, according to any one of claims 1-4, a seismic resistance device for steel structures used in prefabricated buildings, characterized in that: (1) Anti-seismic methods for building steel structures are as follows: S1. Product adjustment: first, place the two reinforcement members (20) against the nodes of the building steel structure (1), and then adjust the positions of the fixing brackets (21) to ensure that the two fixing brackets (21) are evenly distributed on the building steel structure (1); S2. Non-destructive reinforcement: rotating the fixed holder (21) to connect it with the building steel structure (1), ensuring that the two fixed holders (21) make the reinforcement (20) completely fit the surface of the building steel structure (1); S3, alarm activation: the earthquake warning device (3) is set on the reinforcement member (20). After the reinforcement member (20) and the building steel structure (1) are installed, the detection lead pendant (30) is naturally drooped to activate the earthquake warning device (3). When the building steel structure (1) is deformed and tilted or there is looseness between the reinforcement member (20) and the building steel structure (1), the earthquake warning device (3) is activated and an alarm sound prompt and a light prompt are given; S4. Reinforcement treatment: When the earthquake warning device (3) sounds an alarm, check it, solve the problem in time, and cancel the alarm.

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