Reinforced concrete frame structure with outer steel jacket for reinforcing earthquake-damaged structure

Abstract

The application is suitable for the technical field of reinforced concrete reinforcement, and provides an outer steel sleeve reinforced damaged reinforced concrete frame structure, which comprises two groups of end reinforcement mechanisms, the end reinforcement mechanism comprises four reinforcement angle steels, further comprises: a middle reinforcement mechanism, the middle reinforcement mechanism comprises two connecting plates, a plurality of pressing plates are distributed between the two connecting plates, reinforcement steels are arranged on the pressing plates, two first connecting rods are symmetrically installed on the reinforcement steels at both ends, and two second connecting rods are symmetrically installed on the remaining reinforcement steels; and a supporting mechanism, the supporting mechanism comprises a plurality of supporting angle steels, two supporting plates are symmetrically installed on the supporting angle steels, sliding blocks on the supporting plates are connected with push rods through transmission rods, and the push rods are connected with push plates. The device can effectively reinforce the frame column, has good supporting effect, and can make the frame column have a use function even if the frame column is damaged.

Description

Technical Field

[0001] This invention belongs to the field of reinforced concrete reinforcement technology, and particularly relates to a method for reinforcing earthquake-damaged reinforced concrete frame structures with an external steel sleeve. Background Technology

[0002] As a relatively new structural form, concrete structures are now widely used in high-rise, super high-rise, and earthquake-resistant building structures. In recent years, frequent earthquakes have occurred globally, resulting in varying degrees of damage to many buildings, necessitating reinforcement and repair. Steel-concrete composite frame columns are crucial load-bearing components in building structures, significantly impacting their stability and safety.

[0003] The reinforcement of damaged concrete frame columns generally adopts methods such as increasing the cross section, carbon fiber reinforcement, and prestressed reinforcement. The selection of materials is too specialized, the construction period is long, and the construction safety cannot be guaranteed. This is very unfavorable for the structure to quickly resist aftershocks, maintain structural stability, and maintain personnel safety. Moreover, once the frame column collapses as a whole, the existing reinforcement methods become useless. Summary of the Invention

[0004] The purpose of this invention is to provide an externally encased steel sleeve reinforced concrete frame structure to address the problems mentioned in the background art.

[0005] This invention is implemented as follows: a reinforced concrete frame structure reinforced with an external steel sleeve for earthquake damage includes an end reinforcement mechanism for fixing both ends of the frame columns. The end reinforcement mechanism includes four reinforcing angle steels, each used to fix one side of the frame column. Two reinforcing angle steels form a group, and two reinforcing angle steels in the same group are connected by an adjusting component. The adjusting component is used to adjust the spacing between the two reinforcing angle steels and to support the corresponding sidewalls. Two groups of reinforcing angle steels are interconnected by an auxiliary fixing component. The invention also includes:

[0006] An intermediate reinforcement mechanism includes connecting plates installed on opposite ends of two sets of end reinforcement mechanisms. Several pressure plates are equidistantly distributed between the connecting plates at both ends, and each pressure plate is connected to a connecting plate. Reinforcing bars penetrating the frame column are provided on the pressure plates, and the ends of the reinforcing bars are fixed to the pressure plates by fastening nuts. Two first connecting rods are symmetrically installed on each of the reinforcing bars at both ends, and two second connecting rods are symmetrically installed on the remaining reinforcing bars. The two second connecting rods on the same reinforcing bar are X-shaped, and the ends of the second connecting rods are connected to adjacent second connecting rods or first connecting rods.

[0007] The support mechanism includes several support angle steels installed between two sets of end reinforcement mechanisms. The support angle steels are installed on the four vertical sides of the frame column. Two support plates are symmetrically installed on the support angle steels. Each support plate is connected to a slider, and the slider is slidably installed in a sliding groove opened on the support angle steel. A spring connected to the slider is also installed in the sliding groove. A transmission rod is rotatably installed on each of the two sliders. The ends of the two transmission rods away from the sliders are rotatably installed on push rods, and the push rods are slidably installed on the support angle steels. A push plate is connected to the end of the push rod away from the transmission rod, and the side wall of the push plate abuts against the end of the second connecting rod.

[0008] A further technical solution is provided where mounting grooves are provided on opposite sides of two of the reinforcing angle steels in the same group. Several fixed pulleys are evenly distributed in the mounting grooves, and a connecting steel cable is wound between each of the fixed pulleys. One end of the connecting steel cable is fixed to a fixed pulley located at the end, and the other end of the connecting steel cable is wound onto a take-up wheel, and the take-up wheel is connected to the output end of a motor.

[0009] In a further technical solution, the auxiliary fixing component includes a rotating block rotatably mounted on one of two reinforcing angle steels on the same side. The rotating block is connected to several telescopic connecting rods, and a locking block is connected to the end of the telescopic connecting rod away from the rotating block. A slot matching the locking block is opened on the other reinforcing angle steel on the same side as the rotating block.

[0010] A further technical solution is that the locking block is provided with a number of locking bolts, and the slot is provided with bolt holes of the same number as the number of locking bolts.

[0011] A further technical solution is that the distance between the support angle steel at both ends and the connecting plate is not greater than the vertical height of the support plate, and the distance between two adjacent support angle steels is not greater than the sum of the vertical heights of the two support plates.

[0012] In a further technical solution, two sets of intermediate reinforcement mechanisms and support mechanisms are provided, and the two sets of intermediate reinforcement mechanisms and support mechanisms are installed on opposite sides of the frame column, with one set of intermediate reinforcement mechanisms and support mechanisms installed on one side of the frame column.

[0013] In a further technical solution, the support angle steel in the support mechanism is installed on the frame column by fastening bolts.

[0014] This invention provides an embodiment of a reinforced concrete frame structure reinforced with an external steel sleeve for earthquake damage. In use, two sets of end-reinforcement mechanisms at both ends are first fixed to the frame columns. Then, auxiliary fixing components are secured, and simultaneously, an adjustment component is activated. This adjustment component moves two reinforcing angle steels in the same set, causing the reinforcing angle steels to stably engage with the vertical sides of the frame columns, thus reinforcing the ends of the frame columns. Simultaneously, holes are drilled, and reinforcing bars are installed in the corresponding holes. Pressure plates are then installed and tightened with nuts. The first and second connecting rods are installed simultaneously. With the cooperation of the first and second connecting rods and the reinforcing bars, the reinforcing bars support each other, improving the overall reinforcement effect of the device. Finally, fastening bolts are used to fix the supporting angle steels to the vertical sides of the frame columns, thus achieving overall reinforcement of the frame columns. Under normal conditions, the push plate remains in contact with the end of the second connecting rod. When a frame column fractures under external force, or even collapses from the middle, the interconnected first and second connecting rods rotate under pressure, thus pushing the push plate to move. The push plate drives the push rod to move synchronously, and the push rod pushes the slider along the sliding groove through the transmission rod. The slider causes the support plate to open to the upper and lower sides, allowing the support plates between adjacent support angle steels to abut against each other. With the combined action of multiple support angle steels and support plates, a vertical support column can be formed, thus providing support. This device can effectively reinforce the frame column, providing good support, and even if the frame column is damaged, it can still be used. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a reinforced concrete frame structure reinforced with an external steel sleeve to withstand vibration, provided by an embodiment of the present invention.

[0016] Figure 2 This is a partial structural diagram of a reinforced concrete frame structure reinforced with an external steel sleeve to withstand vibration, provided in an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of a support mechanism for reinforcing a vibration-damaged reinforced concrete frame structure with an external steel sleeve, provided by an embodiment of the present invention.

[0018] Figure 4 This invention provides an embodiment of a steel-clad reinforced concrete frame structure for strengthening against vibration damage. Figure 2 Enlarged view of point A in the image;

[0019] Figure 5 This is a schematic diagram of an adjustment component in a reinforced concrete frame structure reinforced with an external steel sleeve for earthquake damage, provided by an embodiment of the present invention.

[0020] Figure 6This is a schematic diagram of an auxiliary fixing component in a reinforced concrete frame structure reinforced with an external steel sleeve, provided as an embodiment of the present invention.

[0021] In the attached diagram: End reinforcement mechanism 1; Reinforcing angle steel 11; Mounting groove 12; Fixed pulley 13; Connecting steel cable 14; Rewinding wheel 15; Auxiliary fixing assembly 2; Rotating block 21; Telescopic connecting rod 22; Clamping block 23; Locking bolt 24; Intermediate reinforcement mechanism 3; Connecting plate 31; First connecting rod 32; Second connecting rod 33; Fastening nut 34; Reinforcing steel bar 35; Pressure plate 36; Support mechanism 4; Supporting angle steel 41; Push plate 42; Push rod 43; Transmission rod 44; Sliding groove 45; Slider 46; Support plate 47; Spring 48. Detailed Implementation

[0022] 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.

[0023] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0024] like Figure 1-4 As shown, an embodiment of the present invention provides a reinforced concrete frame structure with an external steel sleeve for earthquake damage, including an end reinforcement mechanism 1 for fixing both ends of the frame columns. The end reinforcement mechanism 1 includes four reinforcing angle steels 11, each used to fix one side of the frame column. Two reinforcing angle steels 11 form a group, and two reinforcing angle steels 11 in the same group are connected by an adjustment component. The adjustment component is used to adjust the spacing between two reinforcing angle steels 11 and to support the corresponding sidewalls. Two groups of reinforcing angle steels 11 are connected to each other by an auxiliary fixing component 2. The structure also includes:

[0025] An intermediate reinforcement mechanism 3 includes a connecting plate 31 installed on one end of two sets of end reinforcement mechanisms 1 facing each other. Several pressure plates 36 are equidistantly distributed between the connecting plates 31 at both ends, and the pressure plates 36 at both ends are connected to the connecting plates 31 respectively. Reinforcing steel bars 35 penetrating the frame column are provided on the pressure plates 36, and the ends of the reinforcing steel bars 35 are fixed to the pressure plates 36 by fastening nuts 34. Two first connecting rods 32 are symmetrically installed on each of the reinforcing steel bars 35 at both ends, and two second connecting rods 33 are symmetrically installed on the remaining reinforcing steel bars 35. The two second connecting rods 33 on the same reinforcing steel bar 35 are X-shaped, and the ends of the second connecting rods 33 are connected to adjacent second connecting rods 33 or first connecting rods 32.

[0026] The support mechanism 4 includes several support angle steels 41 installed between two sets of end reinforcement mechanisms 1. The support angle steels 41 are installed on the four vertical sides of the frame column. Two support plates 47 are symmetrically installed on the support angle steels 41. Each support plate 47 is connected to a slider 46, and the slider 46 is slidably installed in a sliding groove 45 opened on the support angle steel 41. A spring 48 connected to the slider 46 is also installed in the sliding groove 45. A transmission rod 44 is rotatably installed on each of the two sliders 46. The ends of the two transmission rods 44 away from the sliders 46 are rotatably installed on push rods 43, and the push rods 43 are slidably installed on the support angle steels 41. The end of the push rod 43 away from the transmission rod 44 is connected to a push plate 42, and the side wall of the push plate 42 abuts against the end of the second connecting rod 33.

[0027] In this embodiment of the invention, during use, the two sets of end reinforcement mechanisms 1 at both ends are first fixed to the frame column, and then the auxiliary fixing component 2 is fixed. Simultaneously, the adjustment component is activated, causing the two reinforcing angle steels 11 in the same group to move, thereby stably engaging the reinforcing angle steels 11 on the vertical side of the frame column, thus reinforcing the ends of the frame column. Simultaneously, holes are drilled, and reinforcing steel bars 35 are installed in the corresponding holes. The pressure plate 36 is installed, and then the fastening nut 34 is tightened onto the threaded section at the end of the reinforcing steel bar 35. Simultaneously, the first connecting rod 32 and the second connecting rod 33 are installed. Under the cooperative action of the first connecting rod 32, the second connecting rod 33, and the reinforcing steel bars 35, the reinforcing steel bars 35 support each other, thereby improving the overall reinforcement effect of the device. Then, the supporting angle steel 41 is fixed to the vertical side of the frame column using fastening bolts, thus achieving overall reinforcement of the frame column. Under normal conditions, the push plate 42 remains in contact with the end of the second connecting rod 33. When a frame column breaks under external force, or even collapses from the middle, the interconnected first link 32 and second link 33 rotate under pressure, thus pushing the push plate 42 to move. The push plate 42 drives the push rod 43 to move synchronously. The push rod 43 pushes the slider 46 along the sliding groove 45 through the transmission rod 44. The slider 46 drives the support plate 47 to open to the upper and lower sides, so that the support plates 47 between adjacent support angle steels 41 abut against each other. The distance between the support angle steels 41 at both ends and the connecting plate 31 is no greater than the vertical height of the support plate 47, and the distance between two adjacent support angle steels 41 is no greater than the sum of the vertical heights of the two support plates 47, thus ensuring the effective formation of a support column. With the combined action of multiple support angle steels 41 and support plates 47, a vertical support column can be formed, thus providing support and maintaining its function even if the frame column is damaged. To maintain the stability of the connection, interlocking grooves and matching protrusions can be provided at the ends of the support plates 47 that are in contact with each other, so that the connection between adjacent support plates 47 is more stable.

[0028] like Figure 1 and 5 As shown, in a preferred embodiment of the present invention, mounting grooves 12 are provided on opposite sides of two reinforcing angle steels 11 in the same group. Several fixed pulleys 13 are evenly distributed in the mounting grooves 12. A connecting steel cable 14 is wound between each fixed pulley 13. One end of the connecting steel cable 14 is fixed to a fixed pulley 13 located at the end. The other end of the connecting steel cable 14 is wound onto a winding wheel 15, and the winding wheel 15 is connected to the output end of a motor.

[0029] In this embodiment of the invention, during use, the motor drives the winding wheel 15 to rotate, thereby winding the connecting steel cable 14 onto the winding wheel 15. The connecting steel cable 14 will be continuously tightened, thus stably fixing the two reinforcing angle steels 11 in the same group to the frame column, and it can adapt to frame columns of various sizes. At the same time, the tightened connecting steel cable 14 will contact the corresponding side of the frame column, thereby supporting the frame column.

[0030] like Figure 6 As shown, in a preferred embodiment of the present invention, the auxiliary fixing component 2 includes a rotating block 21 rotatably mounted on one of two reinforcing angle steels 11 on the same side. A plurality of telescopic connecting rods 22 are connected to the rotating block 21. A locking block 23 is connected to one end of the telescopic connecting rod 22 away from the rotating block 21. A slot matching the locking block 23 is provided on the other reinforcing angle steel 11 on the same side as the rotating block 21.

[0031] In this embodiment of the invention, the locking block 23 is provided with a plurality of locking bolts 24, and the slot has bolt holes of the same number as the locking bolts 24. After the reinforcing angle steel 11 of the same group is fixed on the frame column, the locking block 23 can be flipped so that the locking block 23 is inserted into the corresponding slot, and the locking bolts 24 are used to fix the locking block 23 in the slot, thereby fixing the two groups of reinforcing angle steel 11 to form a stable reinforcing frame, which can fix the end of the frame column.

[0032] In a preferred embodiment of the present invention (not shown in the accompanying drawings), two sets of intermediate reinforcement mechanism 3 and support mechanism 4 are provided, and the two sets of intermediate reinforcement mechanism 3 and support mechanism 4 are installed on opposite sides of the frame column, with one set of intermediate reinforcement mechanism 3 and support mechanism 4 installed on one side of the frame column.

[0033] In this embodiment of the invention, the frame columns can be effectively supported by supporting them on both sides, thereby improving their performance.

[0034] Working Principle: In use, first, fix the two sets of end reinforcement mechanisms 1 at both ends to the frame column. Then, fix the auxiliary fixing component 2 and simultaneously start the adjustment component. The adjustment component drives the two reinforcing angle steels 11 in the same group to move, thus stably engaging the reinforcing angle steels 11 on the vertical side of the frame column, thereby reinforcing the end of the frame column. Simultaneously, drill holes and install the reinforcing steel bars 35 into the corresponding holes, install the pressure plate 36, and then lock it with the fastening nut 34. Simultaneously, install the first connecting rod 32 and the second connecting rod 33. Under the coordinated action of the first connecting rod 32, the second connecting rod 33, and the reinforcing steel bars 35, the reinforcing steel bars 35 will support each other, thereby improving the overall reinforcement effect of the device. Then, use fastening bolts to fix the support angle steel 41 to the vertical side of the frame column, thereby achieving overall reinforcement of the frame column. Under normal conditions, the push plate 42 will remain in contact with the end of the second connecting rod 33. When a frame column breaks under external force, or even collapses from the middle, the interconnected first link 32 and second link 33 rotate under pressure, thereby pushing the push plate 42 to move. The push plate 42 drives the push rod 43 to move synchronously. The push rod 43 pushes the slider 46 along the sliding groove 45 through the transmission rod 44. The slider 46 drives the support plate 47 to open to the upper and lower sides, so that the support plates 47 between adjacent support angle steels 41 abut against each other. With the combined action of multiple support angle steels 41 and support plates 47, a vertical support column can be formed, thus providing support. Even if the frame column is damaged, it can still provide support.

[0035] 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 reinforced damaged reinforced concrete frame structure with an outer steel jacket, comprising an end reinforcement mechanism for fixing both ends of a frame column, the end reinforcement mechanism comprising four reinforcement angle steels for fixing one side of the frame column, respectively, characterized in that, The two reinforcing angle steels are a group, the two reinforcing angle steels in the same group are connected through an adjusting assembly, the adjusting assembly is used for adjusting the spacing between the two reinforcing angle steels and supporting the corresponding side wall, the two groups of reinforcing angle steels are connected with each other through an auxiliary fixing assembly, and the auxiliary fixing assembly comprises: The intermediate reinforcing mechanism comprises connecting plates installed on opposite ends of the two groups of end reinforcing mechanisms, a plurality of pressing plates are equidistantly distributed between the connecting plates at the two ends, and the pressing plates at the two ends are connected with the connecting plates, reinforcing steel bars penetrating through the frame column are arranged on the pressing plates, end portions of the reinforcing steel bars are fixed to the pressing plates through fastening nuts, two first connecting rods are symmetrically installed on the reinforcing steel bars at the two ends, two second connecting rods are symmetrically installed on the remaining reinforcing steel bars, the two second connecting rods on the same reinforcing steel bar are in X shape, end portions of the second connecting rods are connected with adjacent second connecting rods or first connecting rods, and the first connecting rods are connected with the second connecting rods at the two ends. The supporting mechanism comprises a plurality of supporting angle steels installed between the two groups of end reinforcing mechanisms, the supporting angle steels are installed on the four vertical edges of the frame column, two supporting plates are symmetrically installed on the supporting angle steels, the supporting plates are connected with sliding blocks, the sliding blocks are slidingly installed in sliding grooves formed in the supporting angle steels, springs connected with the sliding blocks are installed in the sliding grooves, one transmission rod is rotatably installed on each of the sliding blocks, end portions of the transmission rods away from the sliding blocks are rotatably installed on a push rod, the push rod is slidingly installed on the supporting angle steel, and a push plate is connected to an end of the push rod away from the transmission rod, and a side wall of the push plate is in abutment with end portions of the second connecting rods.

2. The reinforced damaged reinforced concrete frame structure with outer steel jacket according to claim 1, characterized in that, Opposite sides of the two reinforcing angle steels in the same group are provided with mounting grooves, a plurality of fixed pulleys are equidistantly distributed in the mounting grooves, one connecting steel cable is wound between the fixed pulleys, one end of the connecting steel cable is fixed to one of the end fixed pulleys, the other end of the connecting steel cable is wound on a winding wheel, and the winding wheel is in transmission connection with an output end of a motor.

3. The reinforced damaged reinforced concrete frame structure with outer steel jacket according to claim 1, characterized in that, The auxiliary fixing assembly comprises a rotating block rotatably installed on one of the two reinforcing angle steels on the same side, a plurality of telescopic connecting rods are connected to the rotating block, and one end of each telescopic connecting rod away from the rotating block is connected with a clamping block.

4. The reinforced damaged reinforced concrete frame structure with outer steel jacket according to claim 3, characterized in that, A plurality of locking bolts are arranged on the clamping block, and a same number of bolt holes as the locking bolts are formed in the clamping groove.

5. The reinforced damaged reinforced concrete frame structure with outer steel jacket according to claim 1, characterized in that, The spacing between the supporting angle steels at the two ends and the connecting plates is not greater than the vertical height of the supporting plates, and the spacing between the two supporting angle steels is not greater than the vertical height of the two supporting plates.

6. The reinforced damaged reinforced concrete frame structure with outer steel jacket according to claim 1, characterized in that, The intermediate reinforcing mechanism and the supporting mechanism are provided with two groups, and the two groups of intermediate reinforcing mechanisms and supporting mechanisms are installed on opposite sides of the frame column.

7. The reinforced damaged reinforced concrete frame structure with outer steel jacket according to claim 1, characterized in that, The supporting angle steels are installed on the frame column through fastening bolts.

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