Frame structure with earthquake-resistant reinforcement

Abstract

The present invention discloses a frame structure with an anti-seismic reinforcement device, which belongs to the field of anti-seismic reinforcement. It includes a frame structure and an anti-seismic reinforcement device, and the anti-seismic reinforcement device includes a connecting column, a self-resetting damper assembly, a horizontal support beam and two support rods; the self-resetting damper assembly is fixedly connected to the connecting column, the bottom of the connecting column and the self-resetting damper assembly are connected to the top of the horizontal support beam, and the bottom left and right sides of the horizontal support beam are respectively connected to the tops of the support rods on the left and right sides; the top of the connecting column is connected to the upper frame beam through an upper connecting structure, and the bottoms of the support rods on the left and right sides are connected to the beam-column node at the bottom of the frame structure through a lower connecting structure, and the upper connecting structure and the lower connecting structure are both assembled and detachable connecting structures. The present invention is convenient and quick to construct, the system has strong and stable energy consumption, simple maintenance, self-resetting ability, and the self-resetting damper can be reused, which effectively improves the anti-seismic performance of the original frame structure.

Description

Technical Field

[0001] The invention relates to the field of earthquake-resistant reinforcement, in particular to a frame structure with an earthquake-resistant reinforcement device. Background Art

[0002] There are a large number of frame structures in buildings. Seismic reinforcement of the frame structures is an effective way to improve the seismic performance of buildings. A damper is a device that uses damping properties to slow down mechanical vibrations and consume kinetic energy. People have transferred dampers to structural engineering such as buildings, bridges, and railways to absorb unpredictable earthquake energy.

[0003] At present, supported shear-type damping devices are mostly used to carry out earthquake-resistant reinforcement of building frame structures. The upper end of the damper is welded to the middle of the upper frame beam, and the bottom of the damper is welded to the middle of the upper flange of the horizontal joist. The upper ends of the two support rods in the shape of an adult are respectively welded to the left and right ends of the horizontal joist, and the lower ends of the two support rods are respectively welded to the beam-column nodes of the original frame structure.

[0004] The supported shear damping device has the following disadvantages:

[0005] 1. The structural energy dissipation mechanism of the support-type shear damping device is single, and some of them can only dissipate energy and reduce shock in large earthquakes, but consume less or no energy in small earthquakes, and cannot play a role in reinforcing the original steel frame structure. When it meets the energy dissipation and reinforcement requirements in small and large earthquakes at the same time, the device structure adds a large stiffness to the original frame structure, which in turn increases the effect of earthquake action and reduces the reinforcement effect of the original frame structure.

[0006] 2. The deformation of the supported shear damping device cannot be restored after its yielding energy dissipation work, there will be a large residual deformation, and there is no self-resetting ability, which will affect the recovery of the normal use function of the structure. Summary of the invention

[0007] The present invention provides a frame structure with an anti-seismic reinforcement device. The present invention is convenient and quick to construct, the system has strong and stable energy consumption, simple maintenance, and has a self-resetting ability. The self-resetting damper can be reused, effectively improving the anti-seismic performance of the original frame structure.

[0008] The present invention provides the following technical solutions:

[0009] A frame structure with a seismic reinforcement device, comprising a frame structure and a seismic reinforcement device, wherein the seismic reinforcement device comprises a connecting column, a self-resetting damper assembly, a horizontal joist and two support rods, wherein:

[0010] The top of the connecting column is connected to the middle of the upper frame beam of the frame structure through an upper connecting structure, the self-resetting damper assembly is fixedly connected to the connecting column, the connecting column and the self-resetting damper assembly are located above the horizontal joist, and the bottom of the connecting column is connected to the top of the horizontal joist, and the self-resetting damper assembly is connected to the top of the horizontal joist;

[0011] The two support rods are respectively located on the left and right sides below the horizontal support beam, and the left and right sides of the bottom of the horizontal support beam are respectively connected to the tops of the support rods on the left and right sides; the bottoms of the support rods on the left and right sides are respectively connected to the beam-column nodes on the left and right sides of the bottom of the frame structure through the lower connection structure;

[0012] The upper connection structure and the lower connection structure are both assembled and detachable connection structures.

[0013] Furthermore, the bottom of the connecting column is connected to the top of the horizontal support beam through a beam-column connecting structure, and the beam-column connecting structure includes a shear plate and two shear plate bolts. The bottom of the shear plate is fixedly connected to the top of the horizontal support beam, and the shear plate is provided with two V-shaped holes. The bottom of the connecting column is provided with two shear plate bolt holes, and the two shear plate bolts respectively pass through the V-shaped holes and the shear plate bolt holes to connect the bottom of the connecting column with the shear plate.

[0014] Furthermore, the upper side of the V-shaped hole is an arc shape protruding upward, the distance between the left and right sides of the V-shaped hole gradually decreases from top to bottom, and the lower side of the V-shaped hole is an arc shape concave downward.

[0015] Furthermore, the self-resetting damper assembly is connected to the top of the horizontal joist through a damper connecting structure, and the damper connecting structure includes a rigid connecting rod with threads at both ends. A vertical through hole is provided on the self-resetting damper assembly, and a damper connecting hole corresponding to the vertical through hole is provided on the top of the horizontal joist. The rigid connecting rod passes through the vertical through hole and the damper connecting hole, and the self-resetting damper assembly is connected to the top of the horizontal joist through nuts at the upper and lower ends of the rigid connecting rod.

[0016] Furthermore, the number of the self-resetting damper assemblies is two, and the two self-resetting damper assemblies are respectively located on the left and right sides of the connecting column, and the inner sides of the two self-resetting damper assemblies are respectively fixedly connected to the left and right sides of the connecting column; each self-resetting damper assembly includes a horizontal bottom plate, a horizontal top plate is arranged directly above the horizontal bottom plate, and the outer sides of the horizontal bottom plate and the horizontal top plate are connected by vertical side plates, and a plurality of self-resetting dampers are arranged in the space surrounded by the horizontal bottom plate, the horizontal top plate and the vertical side plates of each self-resetting damper assembly;

[0017] The number of the vertical through holes is the same as the number of the self-resetting dampers, and each vertical through hole includes a top plate through hole section, a damper through hole section and a bottom plate through hole section respectively opened on the horizontal top plate, the self-resetting damper and the horizontal bottom plate.

[0018] Furthermore, the upper connection structure includes a connection plate and a connection plate bolt, and the top of the connection plate is fixedly connected to the middle of the upper frame beam of the frame structure;

[0019] The connecting plate is provided with a vertical oblong hole, the top of the connecting column is provided with a connecting plate bolt hole, and the connecting plate bolt passes through the oblong hole and the connecting plate bolt hole to connect the connecting plate to the top of the connecting column.

[0020] Furthermore, the left and right sides of the bottom of the horizontal joist are respectively connected to the tops of the support rods on the left and right sides through a beam connecting structure; the beam connecting structure includes an ear plate and an ear plate bolt stopper, the ear plates of the two beam connecting structures are respectively fixed to the left and right sides of the bottom of the horizontal joist, the ear plate bolt stopper holes are opened on the ear plates, the top of the support rod is opened with an ear plate hinge hole, the ear plate bolt stopper passes through the ear plate bolt stopper hole and the ear plate hinge hole to hinge the top of the support rod with the ear plate;

[0021] The lower connection structure includes a node plate and a node plate bolt. The node plates of the two lower connection structures are respectively fixed on the beam-column nodes on the left and right sides of the bottom of the frame structure. A node plate bolt-eliminating hole is opened on the node plate, and a node plate hinge hole is opened at the bottom of the support rod. The node plate bolt-eliminating hole passes through the node plate bolt-eliminating hole and the node plate hinge hole to hinge the bottom of the support rod with the node plate.

[0022] Furthermore, the frame structure is a steel frame structure, the top of the connecting plate is welded to the middle of the lower flange of the upper steel frame beam of the steel frame structure, and the node plate is welded to the beam-column node;

[0023] Alternatively, the frame structure is a concrete frame structure, the top of the connecting plate is connected to the middle of the bottom of the upper concrete frame beam of the concrete frame structure by embedded reinforcement, and the node plate is connected to the beam-column node by embedded reinforcement.

[0024] Furthermore, the connecting column comprises a connecting column web, the connecting column web is vertically arranged and parallel to the plane of the frame structure, and the left and right sides of the connecting column web are respectively connected with a connecting column flange perpendicular to the connecting column web;

[0025] The inner sides of the two self-resetting damper assemblies are welded to the connecting column flanges on the left and right sides of the connecting column web, the connecting plate bolt holes are opened at the top of the connecting column web, and the shear plate bolt holes are opened at the bottom of the connecting column web.

[0026] Furthermore, the horizontal joist includes a joist web, the joist web is horizontally arranged and parallel to the plane of the frame structure, and the upper and lower ends of the joist web are respectively connected with a joist flange perpendicular to the joist web;

[0027] The bottom of the horizontal joist is chamfered on both sides, and end plates are provided on the chamfers, and the ear plates are fixed on the end plates; the bottom of the shear plate is welded to the joist flange at the upper end of the horizontal joist, and the damper connection hole is opened on the joist flange at the upper end of the horizontal joist.

[0028] Furthermore, each connecting plate, shear plate, ear plate and node plate comprises two layers of steel plates arranged at a certain interval, and the vertical oblong holes, V-shaped holes, ear plate bolt-eliminating holes and node plate bolt-eliminating holes are respectively opened on the two layers of steel plates of the connecting plate, shear plate, ear plate and node plate, and the top of the connecting column, the bottom of the connecting column, the top of the support rod and the bottom of the support rod are respectively located in the gap between the two layers of steel plates of the connecting plate, shear plate, ear plate and node plate.

[0029] The present invention has the following beneficial effects:

[0030] 1. The present invention converts the horizontal force attached to the frame structure into the bending energy consumption of the seismic reinforcement device itself and the energy consumption of the self-resetting damper assembly, thereby consuming seismic energy. The system has strong and stable energy consumption, can give full play to the performance advantages of each component, better reflect the high energy dissipation and shock absorption effect of the structural system, greatly improve the bearing capacity and ductility stiffness of the structure, effectively improve the stress condition of the original frame structure when it is affected by horizontal earthquakes, and improve the seismic performance of the original frame structure.

[0031] 2. The seismic reinforcement device of the present invention has a self-resetting performance. The self-resetting damper can be reused without replacement or repair, which can greatly reduce the cost of post-earthquake repair, better dissipate earthquake energy, eliminate residual deformation and reduce structural damage to non-replaceable parts in the frame structure, thereby reducing structural damage.

[0032] 3. The present invention can be used in areas with high or low seismic fortification levels, and can be used to reinforce existing frame structures as well as in newly built buildings.

[0033] 4. The present invention adopts an assembled detachable connection structure between the earthquake-resistant reinforcement device and the beams and columns of the original frame structure. The installation and construction are flexible, convenient and quick, which reduces the construction workload of on-site operations and can effectively reduce the impact on the daily life of residents or factories. At the same time, it is convenient for later replacement and disassembly, simple maintenance, and reduces costs.

[0034] 5. The present invention can be effectively combined with building doors and windows, etc., without being restricted by doors and windows. The installation position can be changed according to the functional requirements of the building, and more facade space can be reserved for adding door openings. The horizontal support beam can be more flexibly used in the original frame structure as a door upper beam, etc., which does not affect the beauty of the building, but can increase the bearing capacity of the door opening and make the structure more solid. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of a frame structure (steel frame structure) with an earthquake-resistant reinforcement device of the present invention;

[0036] Figure 2 It is a schematic diagram of a frame structure (concrete frame structure) with an earthquake-resistant reinforcement device of the present invention;

[0037] Figure 3 for Figure 1 A magnified view of the middle connecting column and horizontal joist section;

[0038] Figure 4 for Figure 1 and Figure 2 A front view of a horizontal joist with a self-resetting damper assembly;

[0039] Figure 5 for Figure 3 1-1 sectional view;

[0040] Figure 6 for Figure 1 and Figure 2 Front view of the center horizontal joist;

[0041] Figure 7 for Figure 1 and Figure 2 A top view of the connection between the center connecting column and the horizontal joist;

[0042] Figure 8 for Figure 1 A three-dimensional view of the connecting plate in FIG.

[0043] Fig. 9 for Figure 2 The front view of the connecting plate in FIG.

[0044] Fig.10 for Figure 2 Side view of the connecting plate in FIG. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0046] An embodiment of the present invention provides a frame structure with an earthquake-resistant reinforcement device, including a frame structure 200 and an earthquake-resistant reinforcement device 100. The earthquake-resistant reinforcement device 100 is arranged inside the frame structure 200 to reinforce the frame structure 200 for earthquake resistance. The frame structure 200 can be a steel frame structure or a concrete frame structure.

[0047] like Figure 1-10 As shown, the seismic reinforcement device 100 includes a connecting column 1, a self-resetting damper assembly 2, a horizontal joist 3 and two support rods 4, wherein:

[0048] The connecting column 1 is a short column arranged vertically, and the top of the connecting column 1 is connected to the middle of the upper frame beam 201 of the frame structure 200 through the upper connecting structure 5. The self-resetting damper assembly 2 is fixedly connected to the connecting column 1, and a fixed connection form such as welding can be adopted. The connecting column 1 and the self-resetting damper assembly 2 are located above the horizontal joist 3, and the bottom of the connecting column 1 is connected to the top of the horizontal joist 3, and the self-resetting damper assembly 2 is connected to the top of the horizontal joist 3.

[0049] The two support rods 4 are respectively located on the left and right sides below the horizontal joist 3, and the left and right sides of the bottom of the horizontal joist 3 are respectively connected to the tops of the support rods 4 on the left and right sides. The spacing between the two support rods 4 gradually widens from top to bottom, so that the two support rods 4 are arranged in a "human" shape. The bottoms of the support rods 4 on the left and right sides are respectively connected to the beam-column nodes 202 on the left and right sides of the bottom of the frame structure 200 through the lower connecting structure 6.

[0050] The upper connection structure 5 and the lower connection structure 6 are both assembled and detachable connection structures.

[0051] The present invention combines the earthquake-resistant reinforcement device 100 with the frame structure 200 of the building, and the earthquake-resistant reinforcement device 100 consumes the horizontal earthquake load attached to the frame structure 200 of the building, thereby achieving the purpose of earthquake-resistant reinforcement.

[0052] The present invention has the following beneficial effects:

[0053] 1. The present invention converts the horizontal force attached to the frame structure 200 into the bending energy consumption of the seismic reinforcement device 100 itself and the energy consumption of the self-resetting damper assembly 2, thereby consuming seismic energy. The system has strong and stable energy consumption, can give full play to the performance advantages of each component, better reflect the high energy dissipation and shock absorption effect of the structural system, greatly improve the bearing capacity and ductility stiffness of the structure, effectively improve the stress condition of the original frame structure when it is affected by horizontal earthquakes, and improve the seismic performance of the original frame structure.

[0054] 2. The seismic reinforcement device 100 of the present invention has a self-resetting performance. The self-resetting damper can be reused without replacement or repair, which can greatly reduce the cost of post-earthquake repair, better dissipate earthquake energy, eliminate residual deformation and reduce structural damage to non-replaceable parts in the frame structure, thereby reducing structural damage.

[0055] 3. The present invention can be used in areas with high or low seismic fortification levels, and can be used to reinforce existing frame structures as well as in newly built buildings.

[0056] 4. The present invention adopts an assembled detachable connection structure between the earthquake-resistant reinforcement device 100 and the beams and columns of the original frame structure. The installation and construction are flexible, convenient and quick, which reduces the construction workload of on-site operations and can effectively reduce the impact on the daily life of residents or factories. At the same time, it is convenient for later replacement and disassembly, simple maintenance, and reduces costs.

[0057] 5. The present invention can be effectively combined with building doors and windows, etc., without being restricted by doors and windows. The installation position can be changed according to the functional requirements of the building, and more facade space can be reserved for adding door openings. The horizontal support beam can be more flexibly used in the original frame structure as a door upper beam, etc., which does not affect the beauty of the building, but can increase the bearing capacity of the door opening and make the structure more solid.

[0058] In some examples, the aforementioned upper connection structure 5 adopts a vertical long hole connection method, which includes a connection plate 7 and a connection plate bolt 8, and the top of the connection plate 7 is fixedly connected to the middle of the upper frame beam 201 of the frame structure 200.

[0059] When the frame structure 200 is a steel frame structure, the top of the connecting plate 7 is welded to the middle of the lower flange of the upper steel frame beam of the steel frame structure, and a stiffening rib 43 can be provided in the middle of the upper steel frame beam. Figure 1 When the frame structure 200 is a concrete frame structure, the top of the connecting plate 7 is connected to the middle of the bottom of the upper concrete frame beam of the concrete frame structure by planting reinforcement, as shown in FIG. Figure 2 shown.

[0060] A vertical oblong hole 9 is formed on the connecting plate 7 , and a connecting plate bolt hole 10 is formed on the top of the connecting column 1 . The connecting plate bolts 8 pass through the oblong hole 9 and the connecting plate bolt hole 10 to connect the connecting plate 7 to the top of the connecting column 1 .

[0061] The connection column 1 and the connection plate 7 adopt a connection mechanism with vertical long bolt holes, which effectively reduces the vertical unbalanced force that is easily generated at the intersection with the upper frame beam 201 and solves the structural damage caused by improper force in the middle of the upper frame beam 201.

[0062] As an improvement of the embodiment of the present invention, the lower connection structure 6 adopts a hinged connection method, specifically:

[0063] The lower connection structure 6 includes a node plate 11 and a node plate bolt 12. The node plates 11 of the two lower connection structures 6 are respectively fixed to the beam-column nodes 202 on the left and right sides of the bottom of the frame structure 200. When the frame structure 200 is a steel frame structure, the node plate 11 is welded to the beam-column node 202, and a stiffening rib 44 can be set at the beam-column node 202, such as Figure 1 When the frame structure 200 is a concrete frame structure, the node plate 11 is connected to the beam-column node 202 by embedding reinforcement, as shown in FIG. Figure 2 shown.

[0064] A node plate bolt-eliminating hole is provided on the node plate 11 , a node plate hinge hole is provided at the bottom of the support rod 4 , and the node plate bolt-eliminating hole 12 passes through the node plate bolt-eliminating hole and the node plate hinge hole to hinge the bottom of the support rod 4 with the node plate 11 .

[0065] The bottom left and right sides of the horizontal support beam 3 are respectively connected to the top of the support rod 4 on the left and right sides through a beam connecting structure 13, and the beam connecting structure 13 also adopts a hinged connection method. Specifically:

[0066] The beam connecting structure 13 includes an ear plate 14 and an ear plate bolt stop 15. The ear plates 14 of the two beam connecting structures 13 are respectively fixed on the left and right sides of the bottom of the horizontal support beam 3. An ear plate bolt stop hole 16 is opened on the ear plate 14, and an ear plate hinge hole is opened on the top of the support rod 4. The ear plate bolt stop 15 passes through the ear plate bolt stop hole 16 and the ear plate hinge hole to hinge the top of the support rod 4 with the ear plate 14.

[0067] In the present invention, the top and bottom ends of the support rod 4 are connected to the horizontal support beam 3 and the beam-column node 202 by hinged connection, and each hinge allows a certain relative rotation to prevent structural damage caused by improper force.

[0068] The present invention does not limit the connection method between the connecting column 1 and the horizontal joist 3. In one example, the bottom of the connecting column 1 is connected to the top of the horizontal joist 3 through the beam-column connecting structure 17. Specifically:

[0069] The beam-column connection structure 17 includes a shear plate 18 and two shear plate bolts 19. The bottom of the shear plate 18 is fixedly connected to the top of the horizontal support beam 3. Two V-shaped holes 20 are opened on the shear plate 18. Two shear plate bolt holes 21 are opened at the bottom of the connecting column 1. The two shear plate bolts 19 pass through the V-shaped holes 20 and the shear plate bolt holes 21 respectively to connect the bottom of the connecting column 1 with the shear plate 18.

[0070] When the self-resetting damper is deformed, the V-shaped hole 20 allows the connecting column 1 and the horizontal joist 3 to move relative to each other, thereby preventing structural damage to the connecting column and the shear plate.

[0071] As a preferred embodiment, the upper side of the V-shaped hole 20 is an arc shape protruding upward, the distance between the left and right sides of the V-shaped hole 20 gradually decreases from top to bottom to form a V shape, and the lower side of the V-shaped hole 20 is an arc shape concave downward.

[0072] In the present invention, the self-resetting damper assembly 2 is connected to the top of the horizontal joist 3 through the damper connection structure 42, specifically:

[0073] The damper connection structure 42 includes a rigid connecting rod 22 with threads at both ends. A vertical through hole 23 is opened on the self-resetting damper assembly 2, and a damper connection hole 24 corresponding to the vertical through hole 23 is opened on the top of the horizontal support beam 3. The rigid connecting rod 22 passes through the vertical through hole 23 and the damper connection hole 24, and the self-resetting damper assembly 2 is fastened to the top of the horizontal support beam 3 by the nuts equipped at the upper and lower ends of the rigid connecting rod 22.

[0074] The number of the self-resetting damper assemblies 2 can be two, and the two self-resetting damper assemblies 2 are respectively located on the left and right sides of the connecting column 1, and the inner sides of the two self-resetting damper assemblies 2 are respectively fixedly connected to the left and right sides of the connecting column 1.

[0075] Each self-resetting damper assembly 2 includes a horizontal bottom plate 25, a horizontal top plate 26 is arranged directly above the horizontal bottom plate 25, the outer sides of the horizontal bottom plate 25 and the horizontal top plate 26 are connected by a vertical side plate 27, and a plurality of self-resetting dampers 28 are arranged in the space enclosed by the horizontal bottom plate 25, the horizontal top plate 26 and the vertical side plates 27 of each self-resetting damper assembly 2.

[0076] The number of vertical through holes 23 is the same as the number of self-resetting dampers 28, and each self-resetting damper 28 is fastened to the top of the horizontal joist 3 through the vertical through hole 23, the rigid connecting rod 22 and the nut. Each vertical through hole 23 includes a top plate through hole section 29, a damper through hole section 30 and a bottom plate through hole section 31 respectively opened on the horizontal top plate 26, the self-resetting damper 28 and the horizontal bottom plate 25.

[0077] The present invention includes two self-resetting damper assemblies 2, each of which can include one or more self-resetting dampers 28, and all self-resetting dampers 28 can be arranged in series and / or in parallel. The specifications and dimensions of the connecting column 1 and the horizontal joist 3 can be designed and adjusted according to actual conditions, and combined with the series and parallel connection of the self-resetting dampers 28, their seismic resistance can be better exerted.

[0078] In one specific example, each self-resetting damper assembly 2 includes two self-resetting dampers 28 , and the four self-resetting dampers 28 are symmetrically arranged in the front-to-rear direction and the left-to-right direction relative to the connecting column 1 .

[0079] The present invention does not limit the structure of the self-resetting damper 28. For example, a self-resetting damper using friction energy dissipation of a wedge-shaped slider as disclosed in Chinese patent document CN110230359A may be used.

[0080] The connecting column 1 and the horizontal supporting beam 3 of the present invention are both H-shaped steel structural components. The connecting column 1 includes a connecting column web 34, which is vertically arranged and parallel to the plane of the frame structure 200. The left and right sides of the connecting column web 34 are respectively connected with a connecting column flange 35, 36 which is perpendicular to the connecting column web 34. The connecting column web 34 and the connecting column flanges 35, 36 form a vertically arranged H-shaped steel structural component.

[0081] The inner sides of the two self-resetting damper assemblies 2 are welded to the connecting column flanges 35 and 36 on the left and right sides of the connecting column web 34 . Specifically, the inner sides of the horizontal bottom plate 25 and the horizontal top plate 26 are welded to the connecting column flanges 35 and 36 .

[0082] The connecting plate bolt hole 10 is opened at the top of the connecting column web 34, and the top of the connecting column web 34 is connected to the connecting plate 7 by the connecting plate bolt 8. The shear plate bolt hole 21 is opened at the bottom of the connecting column web 34, and the bottom of the connecting column web 34 is connected to the top of the horizontal joist 3 by the shear plate bolt 19.

[0083] The horizontal joist 3 includes a joist web 37, which is horizontally arranged and parallel to the plane of the frame structure 200. The upper and lower ends of the joist web 37 are respectively connected with a joist flange 38, 39 perpendicular to the joist web 37. The joist web 37 and the joist flanges 38, 39 form a horizontally arranged H-shaped steel structure component.

[0084] The bottom left and right sides of the horizontal joist 3 are chamfered, and end plates 40 are arranged on the chamfers, and the ear plates 14 are fixed on the end plates 40. The bottom of the shear plate 18 is welded to the joist flange 38 at the upper end of the horizontal joist 3, and the damper connection hole 24 is opened on the joist flange 38 at the upper end of the horizontal joist 3. The self-resetting damper assembly 2 is fastened to the joist flange 38 through the rigid connecting rod 22 and the nut. The horizontal joist 3 can be provided with a stiffening rib 41 to increase the strength.

[0085] Each of the aforementioned connecting plates 7, shear plates 18, ear plates 14 and node plates 11 may include two layers of steel plates 32, 33 arranged at a certain interval, such as Figure 8-10 As shown, the connection plate 7 comprises two layers of arc-shaped steel plates. The vertical oblong holes 9, V-shaped holes 20, lug plate bolt-eliminating holes 16 and node plate bolt-eliminating holes are respectively opened on the connection plate 7, shear plate 18, lug plate 14 and two layers of steel plates 32 and 33 of the node plate 11.

[0086] The top of the connecting column 1, the bottom of the connecting column 1, the top of the supporting rod 4 and the bottom of the supporting rod 4 are respectively located in the gaps between the connecting plate 7, the shear plate 18, the ear plate 14 and the two layers of steel plates 32, 33 of the node plate 11.

[0087] Specifically, the upper end of the connecting column web 34 of the connecting column 1 is inserted between the two layers of steel plates 32 and 33 of the connecting plate 7, and the lower end of the connecting column web 34 of the connecting column 1 is inserted between the two layers of steel plates of the shear plate 18. The support rod 4 is a round steel tube, and its top and bottom ends are flattened. The flattened structures of the bottom and top ends of the support rod 4 are respectively inserted between the two layers of steel plates of the ear plate 14 and the node plate 11.

[0088] As a preference, the surfaces of various components of the earthquake-resistant reinforcement device 100 of the present invention may be subjected to fireproofing and rustproofing treatments according to design requirements.

[0089] The construction method of the present invention is as follows:

[0090] 1. Prefabricate the components of the seismic reinforcement device 100 in the factory, weld the self-resetting damper assembly 2 to the connecting column 1 in advance, and weld the two layers of steel plates of the shear plate 18 to the horizontal joist 3. Transport the components to the installation site, and all steel structure components are fireproofed and rust-proofed.

[0091] 2. The two node plates 11 are spot welded to the beam-column nodes 202 on the left and right sides of the bottom of the frame structure 200 or connected by rebar embedding.

[0092] 3. Use a top support bracket to temporarily support the horizontal joist 3 with the shear plate 18, connect the bottoms of the two support rods 4 to the two node plates 11 through the node plate bolts 12, and connect the tops of the two support rods 4 to the ear plates 14 on the end plates 40 of the horizontal joist 3 through the ear plate pins 15.

[0093] 4. Connect the bottom of the web 34 of the connecting column 1 with the self-resetting damper assembly 2 to the shear plate 18 on the joist flange 38 at the upper end of the horizontal joist 3 through the shear plate bolts 19. Each set of self-resetting damper assembly 2 is connected to the joist flange 38 by inserting two rigid connecting rods 22 and bolting.

[0094] 5. Connect the top of the connecting column web 34 of the connecting column 1 with the self-resetting damper assembly 2 to the connecting plate 7 through the connecting plate bolts 8, and then weld the connecting plate 7 to the lower flange of the upper frame beam 201 or connect them through rebar planting. After installation, remove the top support bracket.

[0095] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A frame structure with seismic reinforcement, It is characterized in that It includes a frame structure and an anti-seismic reinforcement device, wherein the anti-seismic reinforcement device includes a connecting column, a self-resetting damper assembly, a horizontal joist and two support rods, wherein: The top of the connecting column is connected to the middle of the upper frame beam of the frame structure through an upper connecting structure, the self-resetting damper assembly is fixedly connected to the connecting column, the connecting column and the self-resetting damper assembly are located above the horizontal joist, and the bottom of the connecting column is connected to the top of the horizontal joist, and the self-resetting damper assembly is connected to the top of the horizontal joist; The two support rods are respectively located on the left and right sides below the horizontal support beam, and the left and right sides of the bottom of the horizontal support beam are respectively connected to the tops of the support rods on the left and right sides; the bottoms of the support rods on the left and right sides are respectively connected to the beam-column nodes on the left and right sides of the bottom of the frame structure through the lower connection structure; The upper connection structure and the lower connection structure are both assembled and detachable connection structures; The bottom of the connecting column is connected to the top of the horizontal joist through a beam-column connecting structure, the beam-column connecting structure includes a shear plate and two shear plate bolts, the bottom of the shear plate is fixedly connected to the top of the horizontal joist, the shear plate is provided with two V-shaped holes, the bottom of the connecting column is provided with two shear plate bolt holes, and the two shear plate bolts pass through the V-shaped holes and the shear plate bolt holes respectively to connect the bottom of the connecting column to the shear plate; The upper connection structure includes a connection plate and connection plate bolts, and the top of the connection plate is fixedly connected to the middle of the upper frame beam of the frame structure; A vertical oblong hole is formed on the connecting plate, a connecting plate bolt hole is formed on the top of the connecting column, and the connecting plate bolt passes through the oblong hole and the connecting plate bolt hole to connect the connecting plate to the top of the connecting column; The left and right sides of the bottom of the horizontal joist are respectively connected to the tops of the support rods on the left and right sides through a beam connecting structure; the beam connecting structure includes an ear plate and an ear plate bolt stopper, the ear plates of the two beam connecting structures are respectively fixed to the left and right sides of the bottom of the horizontal joist, the ear plate bolt stopper holes are opened on the ear plates, the top of the support rod is opened with an ear plate hinge hole, the ear plate bolt stopper passes through the ear plate bolt stopper hole and the ear plate hinge hole to hinge the top of the support rod with the ear plate; The lower connection structure includes a node plate and a node plate bolt. The node plates of the two lower connection structures are respectively fixed on the beam-column nodes on the left and right sides of the bottom of the frame structure. A node plate bolt-eliminating hole is opened on the node plate, and a node plate hinge hole is opened at the bottom of the support rod. The node plate bolt-eliminating hole passes through the node plate bolt-eliminating hole and the node plate hinge hole to hinge the bottom of the support rod with the node plate.

2. The frame structure with earthquake-resistant reinforcement device according to claim 1, It is characterized in that The upper side of the V-shaped hole is an arc shape protruding upward, the spacing between the left and right sides of the V-shaped hole gradually decreases from top to bottom, and the lower side of the V-shaped hole is an arc shape concave downward.

3. The frame structure with earthquake-resistant reinforcement device according to claim 2, It is characterized in that The self-resetting damper assembly is connected to the top of the horizontal joist through a damper connecting structure, and the damper connecting structure includes a rigid connecting rod with threads at both ends. A vertical through hole is provided on the self-resetting damper assembly, and a damper connecting hole corresponding to the vertical through hole is provided on the top of the horizontal joist. The rigid connecting rod passes through the vertical through hole and the damper connecting hole, and the self-resetting damper assembly is connected to the top of the horizontal joist through nuts at the upper and lower ends of the rigid connecting rod.

4. The frame structure with earthquake-resistant reinforcement device according to claim 3, It is characterized in that The number of the self-resetting damper assemblies is two, and the two self-resetting damper assemblies are respectively located on the left and right sides of the connecting column, and the inner sides of the two self-resetting damper assemblies are respectively fixedly connected to the left and right sides of the connecting column; each self-resetting damper assembly includes a horizontal bottom plate, a horizontal top plate is arranged directly above the horizontal bottom plate, and the outer sides of the horizontal bottom plate and the horizontal top plate are connected by vertical side plates, and a plurality of self-resetting dampers are arranged in the space surrounded by the horizontal bottom plate, the horizontal top plate and the vertical side plates of each self-resetting damper assembly; The number of the vertical through holes is the same as the number of the self-resetting dampers, and each vertical through hole includes a top plate through hole section, a damper through hole section and a bottom plate through hole section respectively opened on the horizontal top plate, the self-resetting damper and the horizontal bottom plate.

5. The frame structure with earthquake-resistant reinforcement device according to claim 4, It is characterized in that The frame structure is a steel frame structure, the top of the connecting plate is welded to the middle of the lower flange of the upper steel frame beam of the steel frame structure, and the node plate is welded to the beam-column node; Alternatively, the frame structure is a concrete frame structure, the top of the connecting plate is connected to the middle of the bottom of the upper concrete frame beam of the concrete frame structure by embedded reinforcement, and the node plate is connected to the beam-column node by embedded reinforcement.

6. The frame structure with earthquake-resistant reinforcement device according to claim 4, It is characterized in that The connecting column comprises a connecting column web, the connecting column web is vertically arranged and parallel to the plane of the frame structure, and the left and right sides of the connecting column web are respectively connected with a connecting column flange perpendicular to the connecting column web; The inner sides of the two self-resetting damper assemblies are welded to the connecting column flanges on the left and right sides of the connecting column web, the connecting plate bolt holes are opened at the top of the connecting column web, and the shear plate bolt holes are opened at the bottom of the connecting column web.

7. The frame structure with earthquake-resistant reinforcement device according to claim 6, It is characterized in that The horizontal joist includes a joist web, the joist web is horizontally arranged and parallel to the plane of the frame structure, and the upper and lower ends of the joist web are respectively connected with a joist flange perpendicular to the joist web; The bottom of the horizontal joist is chamfered on both sides, and end plates are provided on the chamfers, and the ear plates are fixed on the end plates; the bottom of the shear plate is welded to the joist flange at the upper end of the horizontal joist, and the damper connection hole is opened on the joist flange at the upper end of the horizontal joist.

8. The frame structure with earthquake-resistant reinforcement device according to claim 6, It is characterized in that Each connecting plate, shear plate, ear plate and node plate comprises two layers of steel plates arranged at a certain interval, the vertical oblong holes, V-shaped holes, ear plate bolt-eliminating holes and node plate bolt-eliminating holes are respectively opened on the two layers of steel plates of the connecting plate, shear plate, ear plate and node plate, the top of the connecting column, the bottom of the connecting column, the top of the support rod and the bottom of the support rod are respectively located in the gap between the two layers of steel plates of the connecting plate, shear plate, ear plate and node plate.

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