A reinforcing structure for improving the seismic performance of a frame structure

Abstract

The application is suitable for the technical field of concrete reinforcement, and provides a reinforcing structure for improving the anti-seismic performance of a damaged frame structure, which comprises a mounting seat and further comprises: an anti-seismic mechanism, the anti-seismic mechanism comprising a connecting plate and a second sleeve, the second sleeve being connected with a first sleeve, the connecting plate being connected with a transmission rod, the transmission rod penetrating through the top of the first sleeve and being inserted into the first sleeve, and energy-absorbing blocks being installed in the first sleeve and connected with the transmission rod; and an auxiliary damping mechanism, the auxiliary damping mechanism comprising a connecting head and a damping ring, the connecting head being connected with the energy-absorbing blocks through an adjusting assembly, a plurality of clamping blocks being annularly installed on the inner wall of the damping ring, adjacent clamping blocks being connected with each other through arc-shaped springs, and clamping grooves being annularly formed in the connecting head. The device can effectively absorb the energy of large earthquakes and small earthquakes through the two working modes, thereby improving the anti-seismic performance of the frame.

Description

Technical Field

[0001] This invention belongs to the field of concrete reinforcement technology, and particularly relates to a reinforcement structure for improving the seismic performance of earthquake-damaged frame structures. Background Technology

[0002] Reinforced concrete frame structures are one of the most common building structure forms in industrial and civil buildings. Among them, joints play a role in distributing internal forces, coordinating component deformation, and maintaining the integrity of the structure within the load-bearing system.

[0003] Currently, most reinforced concrete frame structures are reinforced and strengthened by earthquake resistance using supported shear damping devices. However, the damping of these devices is mostly pre-set and cannot be adjusted during use. Some of them can only dissipate energy and reduce vibration under large earthquakes, while they consume little or no energy under small earthquakes, thus failing to strengthen the original steel frame structure and reducing the strengthening effect on the original frame structure. Summary of the Invention

[0004] The purpose of this invention is to provide a reinforcement structure that improves the seismic performance of earthquake-damaged frame structures, thereby addressing the problems mentioned in the background art.

[0005] The present invention is implemented as follows: a reinforcement structure for improving the seismic performance of a damaged frame structure includes a mounting base, wherein the mounting base includes a mounting horizontal plate, and mounting vertical plates are symmetrically arranged at both ends of the mounting horizontal plate, and further includes:

[0006] The seismic-resistant mechanism comprises four components. Two of these mechanisms are symmetrically mounted on a horizontal mounting plate to support the upper and lower horizontal beams of the frame, respectively. The other two mechanisms are mounted on vertical mounting plates to support the left and right vertical beams of the frame, respectively. Each seismic-resistant mechanism includes a connecting plate and a second sleeve. The second sleeve is mounted on the corresponding horizontal or vertical mounting plate and connected to a first sleeve. The connecting plate is mounted on the corresponding horizontal or vertical beam and connected to a transmission rod. The transmission rod passes through the top of the first sleeve and inserts into its interior. An energy-absorbing block is installed in the first sleeve and connected to the transmission rod. The energy-absorbing block includes a piston plate connected to the transmission rod and a connecting column located on the side of the piston plate away from the transmission rod. The diameter of the piston plate is larger than the diameter of the connecting column, and the inner diameter of the connection between the first and second sleeves is equal to the diameter of the connecting column.

[0007] An auxiliary damping mechanism includes a connector and a damping ring. The connector is connected to the end of a connecting column via an adjusting component. The damping ring is slidably installed in a second sleeve. Several locking blocks are arranged in a ring on the inner wall of the damping ring, and the locking blocks are slidably installed in the damping ring. Adjacent locking blocks are connected to each other by arc springs. Several locking grooves matching the locking blocks are arranged in a ring on the connector. The adjusting component adjusts the locking state between the locking grooves and the locking blocks by rotating the connector.

[0008] In a further technical solution, the damping ring is made of a material with a high coefficient of friction.

[0009] In a further technical solution, the adjustment assembly includes a mounting cavity formed on the connecting column, a rotary motor installed in the mounting cavity, a mounting bearing installed at one end of the connector near the connecting column, the mounting bearing being mounted on the connecting column via a threaded block, and the output end of the rotary motor passing through the threaded block and the mounting bearing and connected to the connector.

[0010] In a further technical solution, the reinforcement structure also includes a fixing component, which includes four reinforcing angle steels. The four reinforcing angle steels are installed at the connection points of each horizontal beam and vertical beam to increase the stability of the connection points.

[0011] In a further technical solution, the fixing component also includes a support block and a connecting seat. The support block is disposed on a reinforcing angle steel, and the connecting seat is disposed on a mounting plate. The mounting plate is provided with four connecting seats, and each connecting seat is connected to a support block through a positioning rod.

[0012] In a further technical solution, the second sleeve is connected to the corresponding mounting horizontal plate or mounting vertical plate by fastening bolts.

[0013] In a further technical solution, the connecting plate is connected to the corresponding crossbeam or vertical beam by chemical bolts.

[0014] This invention provides a reinforcement structure to improve the seismic performance of a damaged frame structure. In use, each seismic-resistant mechanism is installed onto a corresponding horizontal or vertical beam, forming a cross-shaped support structure to support the frame. When subjected to vibration, the seismic-resistant mechanisms effectively dampen the corresponding horizontal or vertical beams. Specifically, the seismic-resistant mechanisms have two operating states:

[0015] (1) The adjusting component drives the connector to rotate, causing the locking groove and locking block to be misaligned. At this time, the locking block will retract in the damping ring. Therefore, when the connecting plate is subjected to vibration from the corresponding horizontal or vertical beam, the connecting plate will transmit the vibration to the transmission rod. The transmission rod will then push the energy-absorbing block to move in the first sleeve, thereby squeezing the damping fluid in the first sleeve to achieve the effect of shock absorption. The transmission rod in this state has relatively low damping and can be used to absorb smaller vibrations.

[0016] (2) The adjusting component drives the connector to rotate, causing the locking groove and the locking block to engage with each other. At this time, under the elastic force of the arc spring, the locking block will engage in the locking groove. The connector and the damping ring are connected at this time. The energy-absorbing block can drive the damping ring to move synchronously through the connector. At this time, the transmission rod can not only squeeze the damping fluid in the first sleeve through the energy-absorbing block to achieve shock absorption, but also synchronously damp the damping fluid in the second sleeve through the piston plate structure formed by the connector and the damping ring, thereby improving the shock absorption effect of the device. The transmission rod in this state has a large motion damping, which can be used to absorb larger vibrations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a reinforcement structure for improving the seismic performance of a damaged frame structure, provided by an embodiment of the present invention.

[0018] Figure 2 A schematic diagram of a seismic-resistant mechanism in a reinforcement structure for improving the seismic performance of a damaged frame structure, provided in an embodiment of the present invention;

[0019] Figure 3 This invention provides a reinforcement structure for improving the seismic performance of a damaged frame structure. Figure 2 Enlarged view of point A;

[0020] Figure 4 A three-dimensional structural diagram of the engagement block and the arc spring in a reinforcement structure for improving the seismic performance of a damaged frame structure provided in an embodiment of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of a connector in a reinforcement structure for improving the seismic performance of a damaged frame structure, provided as an embodiment of the present invention.

[0022] In the attached diagram: Mounting base 1; Mounting horizontal plate 11; Mounting vertical plate 12; Seismic isolation mechanism 2; Connecting plate 21; Transmission rod 22; First sleeve 23; Second sleeve 24; Energy absorption block 25; Adjustment assembly 3; Rotary motor 31; Threaded block 32; Mounting bearing 33; Mounting cavity 34; Auxiliary damping mechanism 4; Connector 41; Engaging groove 42; Engaging block 43; Arc spring 44; Damping ring 45; Fixing assembly 5; Reinforcing angle steel 51; Support block 52; Connecting base 53; Positioning rod 54. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0025] like Figure 1-4 As shown, a reinforcement structure for improving the seismic performance of a damaged frame structure according to an embodiment of the present invention includes a mounting base 1, wherein the mounting base 1 includes a mounting horizontal plate 11, and mounting vertical plates 12 are symmetrically arranged at both ends of the mounting horizontal plate 11, and further includes:

[0026] The seismic resisting mechanism 2 includes four components. Two of the seismic resisting mechanisms 2 are symmetrically installed on the mounting horizontal plate 11, respectively supporting the upper and lower horizontal beams of the frame. The other two seismic resisting mechanisms 2 are respectively installed on the mounting vertical plate 12, respectively supporting the left and right vertical beams of the frame. Each seismic resisting mechanism 2 includes a connecting plate 21 and a second sleeve 24. The second sleeve 24 is installed on the corresponding mounting horizontal plate 11 or mounting vertical plate 12 and is connected to the corresponding mounting horizontal plate 11 or mounting vertical plate 12 by fastening bolts for easy installation. The second sleeve 24 is connected to the first sleeve 23. The connecting plate 21 is installed on a corresponding horizontal or vertical beam. The connecting plate 21 is connected to a transmission rod 22, which passes through the top of the first sleeve 23 and inserts into the interior of the first sleeve 23. An energy-absorbing block 25 is installed in the first sleeve 23 and is connected to the transmission rod 22. The energy-absorbing block 25 includes a piston plate connected to the transmission rod 22 and a connecting column disposed on the side of the piston plate away from the transmission rod 22. The diameter of the piston plate is larger than the diameter of the connecting column, and the inner diameter of the connection between the first sleeve 23 and the second sleeve 24 is equal to the diameter of the connecting column.

[0027] The auxiliary damping mechanism 4 includes a connector 41 and a damping ring 45. The connector 41 is connected to the end of the connecting column through an adjusting component 3. The damping ring 45 is slidably installed in the second sleeve 24. Several locking blocks 43 are arranged in a ring on the inner wall of the damping ring 45, and the locking blocks 43 are slidably installed in the damping ring 45. Adjacent locking blocks 43 are connected to each other by an arc spring 44. Several locking grooves 42 matching the locking blocks 43 are arranged in a ring on the connector 41. The adjusting component 3 adjusts the locking state between the locking grooves 42 and the locking blocks 43 by rotating the connector 41.

[0028] In this embodiment of the invention, the connecting plate 21 is connected to the corresponding horizontal or vertical beam by chemical bolts, thereby ensuring the connection stability of the connecting plate 21. The damping ring 45 is made of a material with a high coefficient of friction, and the cross-section of the damping ring 45 is stepped. The area with a larger inner diameter is used to install the locking block 43, and the inner diameter of the smaller inner diameter end is the same as the diameter of the connecting head 41. When the connecting head 41 and the damping ring 45 are connected to each other, a piston plate structure can be formed through the cooperation of the connecting head 41 and the damping ring 45, thereby making the entire anti-vibration mechanism 2 a double piston plate structure, increasing the motion damping of the transmission rod 22. The interior of the first sleeve 23 is also stepped. The area with a larger inner diameter is the movement area of ​​the piston plate, and the area with a smaller inner diameter is the movement range of the bottom of the connecting column, thereby preventing the damping fluid in the first sleeve 23 from leaking into the second sleeve 24.

[0029] In use, each seismic-resistant mechanism 2 is installed onto the corresponding horizontal or vertical beam, forming a cross-shaped support structure for supporting the frame. When subjected to vibration, the seismic-resistant mechanism 2 effectively absorbs shocks from the corresponding horizontal or vertical beam. Specifically, the seismic-resistant mechanism 2 has two operating states:

[0030] (1) The adjusting component 3 drives the connector 41 to rotate, causing the locking groove 42 and the locking block 43 to be misaligned. At this time, the locking block 43 will retract into the damping ring 45. Therefore, when the connecting plate 21 is subjected to vibration from the corresponding horizontal or vertical beam, the connecting plate 21 transmits the vibration to the transmission rod 22. The transmission rod 22 will push the energy-absorbing block 25 to move in the first sleeve 23, thereby squeezing the damping fluid in the first sleeve 23 to achieve the effect of shock absorption. The transmission rod 22 in this state has low motion damping and can be used to absorb small vibrations.

[0031] (2) Adjusting component 3 drives connector 41 to rotate, causing locking groove 42 and locking block 43 to engage with each other. At this time, under the elastic force of arc spring 44, locking block 43 will engage in locking groove 42. Connector 41 and damping ring 45 are connected. Energy absorption block 25 can drive damping ring 45 to move synchronously through connector 41. At this time, transmission rod 22 can not only squeeze damping fluid in first sleeve 23 through energy absorption block 25 to achieve shock absorption, but also synchronously damp the damping fluid in second sleeve 24 through piston plate structure formed by connector 41 and damping ring 45, thereby improving the shock absorption effect of the device. The movement damping of transmission rod 22 in this state is relatively large and can be used to absorb large vibrations.

[0032] By adjusting the two states mentioned above, both large and small earthquakes can be effectively absorbed.

[0033] like Figure 2 , 3As shown in Figure 5, in a preferred embodiment of the present invention, the adjustment component 3 includes a mounting cavity 34 formed on the connecting column, a rotary motor 31 is installed in the mounting cavity 34, and a mounting bearing 33 is installed at one end of the connector 41 near the connecting column. The mounting bearing 33 is installed on the connecting column through a threaded block 32, and the output end of the rotary motor 31 passes through the threaded block 32 and the mounting bearing 33 and is connected to the connector 41.

[0034] In this embodiment of the invention, during assembly, the rotary motor 31 is first installed in the mounting cavity 34, and then the mounting bearing 33 is fixed to the connecting column by the threaded block 32. The threaded block 32 can seal the mounting cavity 34 to prevent damping fluid from entering the mounting cavity 34. In use, the rotary motor 31 drives the connector 41 to rotate, thereby adjusting the positional relationship between the engaging groove 42 and the engaging block 43. In order to facilitate the engagement and disengagement of the engaging groove 42 and the engaging block 43, the two sides of the engaging groove 42 can be rounded as a transition connection.

[0035] like Figure 1 As shown, in a preferred embodiment of the present invention, the reinforcement structure further includes a fixing component 5, which includes four reinforcing angle steels 51. The four reinforcing angle steels 51 are installed at the connection between each horizontal beam and vertical beam to increase the stability of the connection between the horizontal beam and vertical beam.

[0036] In this embodiment of the invention, by setting four reinforcing angle steels 51, the connection of the frame can be reinforced, thereby improving the overall seismic performance of the frame.

[0037] like Figure 1 As shown, in a preferred embodiment of the present invention, the fixing component 5 further includes a support block 52 and a connecting seat 53. The support block 52 is disposed on the reinforcing angle steel 51, and the connecting seat 53 is disposed on the mounting horizontal plate 11. The mounting horizontal plate 11 is provided with four connecting seats 53, and each connecting seat 53 is connected to a support block 52 by a positioning rod 54.

[0038] In this embodiment of the invention, the support block 52 can not only enhance the supporting effect of the reinforcing angle steel 51, but also be used to install the positioning rod 54. The four positioning rods 54 cooperate with each other to fix the position of the mounting plate 11, so that the device will not deform due to vibration during use.

[0039] Working Principle: In use, each seismic-resistant mechanism 2 is installed onto the corresponding horizontal or vertical beam, forming a cross-shaped support structure for supporting the frame. When subjected to vibration, the seismic-resistant mechanism 2 effectively dampens the corresponding horizontal or vertical beam. Specifically, the seismic-resistant mechanism 2 has two working states:

[0040] (1) The rotary motor 31 drives the connector 41 to rotate, causing the locking groove 42 and the locking block 43 to be misaligned. At this time, the locking block 43 will retract in the damping ring 45. Therefore, when the connecting plate 21 is subjected to vibration from the corresponding horizontal or vertical beam, the connecting plate 21 transmits the vibration to the transmission rod 22. The transmission rod 22 will push the energy-absorbing block 25 to move in the first sleeve 23, thereby squeezing the damping fluid in the first sleeve 23 to achieve the effect of shock absorption. The transmission rod 22 has low motion damping in this state and can be used to absorb small vibrations.

[0041] (2) The rotary motor 31 drives the connector 41 to rotate, causing the locking groove 42 and the locking block 43 to engage with each other. At this time, under the elastic force of the arc spring 44, the locking block 43 will engage in the locking groove 42. At this time, the connector 41 and the damping ring 45 are connected to each other. The energy-absorbing block 25 can drive the damping ring 45 to move synchronously through the connector 41. At this time, the transmission rod 22 can not only squeeze the damping fluid in the first sleeve 23 through the energy-absorbing block 25 to achieve shock absorption, but also synchronously damp the damping fluid in the second sleeve 24 through the piston plate structure formed by the connector 41 and the damping ring 45, thereby improving the shock absorption effect of the device. The movement damping of the transmission rod 22 in this state is relatively large and can be used to absorb large vibrations.

[0042] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reinforcement structure for improving the seismic performance of a damaged frame structure, comprising a mounting base, wherein the mounting base includes a mounting horizontal plate, and mounting vertical plates are symmetrically arranged at both ends of the mounting horizontal plate, characterized in that, Also includes: The seismic-resistant mechanism comprises four components. Two of these mechanisms are symmetrically mounted on a horizontal mounting plate to support the upper and lower horizontal beams of the frame, respectively. The other two mechanisms are mounted on vertical mounting plates to support the left and right vertical beams of the frame, respectively. Each seismic-resistant mechanism includes a connecting plate and a second sleeve. The second sleeve is mounted on the corresponding horizontal or vertical mounting plate and connected to a first sleeve. The connecting plate is mounted on the corresponding horizontal or vertical beam and connected to a transmission rod. The transmission rod passes through the top of the first sleeve and inserts into its interior. An energy-absorbing block is installed in the first sleeve and connected to the transmission rod. The energy-absorbing block includes a piston plate connected to the transmission rod and a connecting column located on the side of the piston plate away from the transmission rod. The diameter of the piston plate is larger than the diameter of the connecting column, and the inner diameter of the connection between the first and second sleeves is equal to the diameter of the connecting column. An auxiliary damping mechanism includes a connector and a damping ring. The connector is connected to the end of a connecting column via an adjusting component. The damping ring is slidably installed in a second sleeve. Several locking blocks are arranged in a ring on the inner wall of the damping ring, and the locking blocks are slidably installed in the damping ring. Adjacent locking blocks are connected to each other by arc springs. Several locking grooves matching the locking blocks are arranged in a ring on the connector. The adjusting component adjusts the locking state between the locking grooves and the locking blocks by rotating the connector.

2. The reinforcement structure for improving the seismic performance of a damaged frame structure according to claim 1, characterized in that, The adjustment assembly includes a mounting cavity formed on the connecting column, in which a rotary motor is installed. A mounting bearing is installed at one end of the connector near the connecting column. The mounting bearing is mounted on the connecting column via a threaded block, and the output end of the rotary motor passes through the threaded block and the mounting bearing and is connected to the connector.

3. The reinforcement structure for improving the seismic performance of a damaged frame structure according to claim 1, characterized in that, It also includes a fixing component, which includes four reinforcing angle steels. The four reinforcing angle steels are installed at the connection points of each horizontal beam and vertical beam to increase the stability of the connection points.

4. The reinforcement structure for improving the seismic performance of a damaged frame structure according to claim 3, characterized in that, The fixing component also includes a support block and a connecting seat. The support block is disposed on a reinforcing angle steel, and the connecting seat is disposed on a mounting plate. The mounting plate is provided with four connecting seats, and each connecting seat is connected to a support block through a positioning rod.

5. The reinforcement structure for improving the seismic performance of a damaged frame structure according to claim 1, characterized in that, The second sleeve is connected to the corresponding mounting horizontal plate or mounting vertical plate by fastening bolts.

6. The reinforcement structure for improving the seismic performance of a damaged frame structure according to claim 1, characterized in that, The connecting plate is connected to the corresponding crossbeam or vertical beam by chemical bolts.

7. The reinforcement structure for improving the seismic performance of a damaged frame structure according to claim 1, characterized in that, The damping ring is made of a material with a high coefficient of friction.

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