CN112922210B - Connecting device for self-resetting anti-side frame and floor slab - Google Patents
Connecting device for self-resetting anti-side frame and floor slab Download PDFInfo
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- CN112922210B CN112922210B CN202110111109.2A CN202110111109A CN112922210B CN 112922210 B CN112922210 B CN 112922210B CN 202110111109 A CN202110111109 A CN 202110111109A CN 112922210 B CN112922210 B CN 112922210B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
- E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/28—Cross-ribbed floors
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- Structural Engineering (AREA)
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Abstract
The invention discloses a connecting device of a self-resetting anti-side frame and a floor slab, which comprises a precast concrete frame column, wherein a precast reinforced concrete column is formed in the precast concrete frame column, the precast concrete frame column is respectively connected with a welded main steel beam and a secondary steel beam, and a reinforced buffering supporting structure is symmetrically connected between the secondary steel beam and the precast concrete frame column, and has the advantages that: the self-resetting frame structure has the advantages that under the condition of keeping the elastic response of the beam, the beam-column connecting joint responds to opening and closing to generate large lateral movement, the residual deformation is small, the maintenance cost after the earthquake is relatively low, the energy consumption device is easy to replace, the steel plate yield energy consumption is utilized, the anti-seismic performance of the structure is improved, the maximum deformation of the structure under the earthquake action is controlled, meanwhile, the self-resetting capability of the prestressed tendon is utilized under the earthquake action, the residual deformation of the structure is reduced, and the rapid restoration of the structure function is realized.
Description
Technical Field
The invention relates to the technical field of connection of a self-resetting anti-side frame and a floor slab, in particular to a connecting device of the self-resetting anti-side frame and the floor slab.
Background
The traditional steel beam and the steel column or the reinforced concrete column are connected in a field welding connection mode, the construction quality is not easy to guarantee, the steel beam is easy to generate large yield deformation under the action of a large earthquake, so that residual deformation of the earthquake-caused component and node is overlarge, and the component and node cannot be repaired or the repairing cost is overhigh. In addition, the welding seam connection mode is adopted, so that the tearing damage of the welding seam is easy to cause the brittle damage of the node under the repeated action of earthquake, and great loss is brought to the life and property safety of people.
The steel beam and the reinforced concrete column can be connected in a prestressed rib splicing mode, the connecting mode is simple, a large amount of on-site welding is not needed, and the construction quality is easy to guarantee. The earthquake energy is dissipated through the deformation of the joint of the steel beam and the column under the action of an earthquake, the steel beam and the column member keep elasticity, the beam column member can reset after the earthquake, the residual deformation is small, and the node is easy to repair.
Under the action of lateral load, when the concrete floor at the joint of the beam column restrains the connecting position of the beam column greatly, the elongation of the steel beam and the growth of the prestressed tendon are limited, the self-resetting capability of the node is influenced, and the node generates large residual deformation. The research on the prestressed prefabricated frame structure at home and abroad rarely considers the influence of the floor on the mechanical property of the node or the structure. How to transfer the inertia force of the floor to the frame structure on the premise of not influencing the self-resetting performance of the node or the structure is of great importance in the connecting construction measure of the floor and the node, and the influence of floor restraint on the stress performance of the beam-column joint must be weakened.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
In view of the problems in the related art, the present invention provides a connecting device for a self-resetting anti-lateral frame and a floor slab, so as to overcome the above technical problems in the related art.
The technical scheme of the invention is realized as follows:
a connecting device of a self-resetting side-resisting frame and a floor slab comprises a precast concrete frame column, wherein a precast reinforced concrete column is formed in the precast concrete frame column, the precast concrete frame column is respectively connected with a welding main steel beam and a welding secondary steel beam, the welding main steel beam and the welding secondary steel beam are mutually vertical, a reinforced buffering supporting structure is symmetrically connected between the secondary steel beam and the precast concrete frame column, the reinforced buffering supporting structure comprises a connecting sleeve, a movable cavity is formed in the connecting sleeve, guide sliding grooves are symmetrically formed in two sides of the inner wall of the movable cavity, a movable supporting column I and a movable supporting column II are respectively arranged at two ends of the movable cavity, guide sliding blocks are respectively arranged on two sides of one end, located in the movable cavity, of the movable supporting column I and the movable supporting column II, and are matched with the guide sliding grooves, the movable supporting columns I and the movable supporting columns II are respectively provided with a connecting block at one end positioned in the movable cavity, a bidirectional hydraulic buffer rod is connected between the connecting blocks, an installation fixing plate is symmetrically arranged at the center of the bidirectional hydraulic buffer rod, buffer springs are symmetrically connected between the installation fixing plate and the movable supporting columns I and between the installation fixing plate and the movable supporting columns II, the top ends of the movable supporting columns I and the movable supporting columns II are respectively connected with a movable connecting structure, the movable connecting structures comprise connecting blocks, movable cavities are arranged in the connecting blocks, movable connecting rods are movably connected in the movable cavities through movable shafts, connecting plates are arranged on the movable connecting rods, installation nails are symmetrically arranged on the connecting plates, profiled steel plates are vertically arranged in the plate rib direction of the welding main steel beam, and the profiled steel plates are connected with the welding main steel beam through shear resistant bolts, the prefabricated reinforced concrete column is characterized in that a cast-in-place reinforced concrete slab is arranged on the profiled steel sheet, energy-consuming flange steel plates are arranged at the upper end and the lower end of the prefabricated reinforced concrete column, the fixed ends of the energy-consuming flange steel plates are connected through high-strength friction bolts, a constraint cover plate is installed on the outer side of each energy-consuming flange steel plate, a prestressed rib hole is reserved in the direction of the welding main steel beam of the prefabricated reinforced concrete column, a prestressed rib is arranged in the prestressed rib hole, the prestressed rib penetrates through the reserved prestressed rib hole and presses the welding main steel beam and the prefabricated reinforced concrete column through tensioning prestress, and an outer sleeve steel plate hoop is arranged at the joint of the prefabricated reinforced concrete frame column.
Furthermore, the energy consumption flange steel plate is made of Q235 low-yield-point steel, and the thickness is 4-8 mm.
Furthermore, the lower reinforcing steel bar of the cast-in-place concrete slab does not extend into the secondary steel beam within the width range of the flange of the welded main steel beam and is isolated from the concrete through a PVC pipe at the end.
Furthermore, a reinforced rigid plate is connected to the secondary steel beam, and positioning holes are formed in the reinforced rigid plate.
Furthermore, the main welding steel beam and the secondary welding steel beam are made of synthetic steel plates, and the surfaces of the main welding steel beam and the secondary welding steel beam are coated with anti-rust paint.
Furthermore, both sides of the outer sleeve steel plate hoop are provided with positioning nails.
Furthermore, the constraint cover plate is connected with the energy consumption flange steel plate in a welding mode.
Furthermore, the first movable supporting column and the second movable supporting column are both provided with wear-resistant layers.
The invention provides a connecting device for a self-resetting anti-side frame and a floor slab, which has the following beneficial effects:
(1) the reinforced buffering support structure comprises a connecting sleeve, a movable cavity is formed in the connecting sleeve, guide sliding grooves are symmetrically formed in two sides of the inner wall of the movable cavity, a first movable support column and a second movable support column are respectively arranged at two ends of the movable cavity, guide sliding blocks are respectively arranged on two sides of one end, located in the movable cavity, of the first movable support column and the second movable support column, the guide sliding blocks are matched with the guide sliding grooves, connecting blocks are respectively arranged at one ends, located in the movable cavity, of the first movable support column and the second movable support column, a bidirectional hydraulic buffering rod is connected between the connecting blocks, mounting fixing plates are symmetrically arranged at the center of the bidirectional hydraulic buffering rod, and buffering springs are symmetrically connected between the mounting fixing plates and the first movable support column and the second movable support column, the movable connection structure comprises a connection block, a movable cavity is arranged in the connection block, a movable connection rod is movably connected in the movable cavity through a movable shaft, a connection plate is arranged on the movable connection rod, mounting nails are symmetrically arranged on the connection plate, when the movable connection structure is used, the movable support rod and the movable support rod are connected through the movable shaft, the two-way hydraulic buffer rod can be used as a main buffer structure when being under pressure by utilizing the matching of the guide sliding block and the guide sliding groove, the pressure on the joint of the secondary steel beam and the precast concrete frame column is reduced by utilizing the two-way hydraulic buffer rod, the prestress is further improved by utilizing the movable connection rod movably connected through the movable shaft in the movable cavity when being deformed, the connection can be further ensured, and the self-resetting frame structure can keep the elastic response of the beam, the beam-column connecting joint has the advantages that the beam-column connecting joint can be opened and closed to respond to generate large lateral displacement, the residual deformation is small, the maintenance cost after earthquake is relatively low, the inelastic deformation of the self-resetting frame structure is limited to the energy dissipation device, compared with the common frame structure, the energy dissipation device is easy to replace, the steel plate yield energy dissipation is utilized, the earthquake resistance of the structure is improved, the maximum deformation of the structure under the earthquake action is controlled, meanwhile, the self-resetting capability of the prestressed ribs is utilized under the earthquake action, the residual deformation of the structure is reduced, and the rapid restoration of the structure function is realized.
(2) And the energy consumption flange steel plate is made of Q low-yield-point steel, the thickness is-mm, and the strength is improved.
(3) And the lower part steel bar of the cast-in-place concrete slab does not extend into the secondary steel beam within the width range of the flange of the welded main steel beam and is isolated from the concrete through a PVC pipe at the end so as to weaken the connection between the steel bar and the concrete and reduce the influence of the floor slab on the stress performance of the connecting joint of the main beam and the column.
(4) The secondary steel beam is connected with a reinforced rigid plate, and the reinforced rigid plate is provided with a positioning hole, so that the connection strength and stability are improved.
(5) The main steel beam and the secondary steel beam are welded by adopting synthetic steel plates, and the surfaces of the main steel beam and the secondary steel beam are coated with anti-rust paint, so that the strength of the steel beam is improved, and the service life of the steel beam is prolonged.
(6) And the two sides of the outer sleeve steel plate hoop are provided with positioning nails, so that the outer sleeve steel plate hoop is convenient to position and fix.
(7) The restraining cover plate is connected with the energy consumption flange steel plate in a welding mode, and the energy consumption flange steel plate is prevented from falling off.
(8) And the wear-resistant layers are arranged on the first movable supporting column and the second movable supporting column, so that the wear resistance of the composite plate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a left side view of a self-resetting anti-side frame to floor connection according to an embodiment of the invention;
fig. 2 is a right side view of a self-resetting anti-side frame to floor connection according to an embodiment of the invention;
fig. 3 is a top view of a self-resetting anti-side frame to floor connection according to an embodiment of the invention;
fig. 4 is a schematic structural view of a flange steel plate of a power dissipation in a connecting device of a self-resetting anti-side frame and a floor slab according to an embodiment of the invention;
fig. 5 is a schematic structural view of a restraining cover plate in a self-restoring anti-lateral frame and floor connecting device according to an embodiment of the invention;
fig. 6 is a schematic structural view of a precast concrete frame column in a connecting device for a self-restoring shear-resisting side frame and a floor slab according to an embodiment of the present invention;
fig. 7 is a structural view illustrating a structure of a reinforcing buffering support structure in a connecting device of a self-restoring anti-lateral frame and a floor slab according to an embodiment of the invention;
fig. 8 is a schematic structural view of an articulated connection structure in a connection device of a self-restoring anti-side frame and a floor slab according to an embodiment of the invention.
In the figure:
1. prefabricating a concrete frame column; 2. welding the main steel beam; 3. a secondary steel beam; 4. profiled steel sheets; 5. pouring a reinforced concrete slab in situ; 6. an energy consumption flange steel plate; 7. a restraint cover plate; 8. prestressed tendons; 9. shear resistant studs; 10. sleeving a steel plate hoop outside; 11. PVC pipes; 12. prefabricating a reinforced concrete column; 13. positioning nails; 14. a prestressed tendon duct; 15. reinforcing the buffer support structure; 16. a connecting sleeve; 17. a movable cavity; 18. a guide chute; 19. a first movable support pillar; 20. a second movable support column; 21. a guide slider; 22. connecting blocks; 23. a bidirectional hydraulic buffer rod; 24. mounting a fixed plate; 25. a buffer spring; 26. a movable connection structure; 27. connecting blocks; 28. a movable cavity; 29. a movable shaft; 30. a movable connecting rod; 31. a connecting plate; 32. installing a nail; 33. reinforcing the rigid plate; 34. positioning holes; 35. and (6) positioning the nail.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The invention is further described with reference to the following drawings and detailed description:
the first embodiment is as follows:
referring to fig. 1 to 8, a connecting device for a self-resetting anti-side frame and a floor slab according to an embodiment of the present invention includes a precast concrete frame column 1, a precast reinforced concrete column 12 is formed in the precast concrete frame column 1, the precast concrete frame column 1 is connected to a welding main steel beam 2 and a secondary steel beam 3, the welding main steel beam 2 and the secondary steel beam 3 are perpendicular to each other, a reinforced buffer support structure 15 is symmetrically connected between the secondary steel beam 3 and the precast concrete frame column 1, the reinforced buffer support structure 15 includes a connecting sleeve 16, a movable cavity 17 is formed in the connecting sleeve 16, guide sliding grooves 18 are symmetrically formed on two sides of an inner wall of the movable cavity 17, a first movable support column 19 and a second movable support column 20 are respectively formed at two ends of the movable cavity 17, guide sliding blocks 21 are respectively formed on two sides of one end of the first movable support column 19 and one end of the second movable support column 20 located in the movable cavity 17, the guide sliding block 21 is matched with the guide sliding groove 18, one ends of the first movable supporting columns 19 and the second movable supporting columns 20, which are located in the movable cavity 17, are respectively provided with a connecting block 22, two-way hydraulic buffer rods 23 are connected between the connecting blocks 22, the centers of the two-way hydraulic buffer rods 23 are symmetrically provided with an installation fixing plate 24, buffer springs 25 are symmetrically connected between the installation fixing plate 24 and the first movable supporting columns 19 and the second movable supporting columns 20, the top ends of the first movable supporting columns 19 and the second movable supporting columns 20 are respectively connected with a movable connecting structure 26, each movable connecting structure 26 comprises a connecting block 27, movable cavities 28 are arranged in the connecting blocks 27, movable connecting rods 30 are movably connected in the movable cavities 28 through movable shafts 29, connecting plates 31 are arranged on the movable connecting rods 30, and mounting nails 32 are symmetrically arranged on the connecting plates 31, profiled steel sheets 4 are vertically arranged in the plate rib direction of the welding main steel beam 2, the profiled steel sheets 4 are connected with the welding main steel beam 2 through shear resistant studs 9, the profiled steel sheet 4 is provided with a cast-in-situ reinforced concrete slab 5, the upper end and the lower end of the prefabricated reinforced concrete column 12 are provided with energy dissipation flange steel plates 6, the fixed ends of the energy consumption flange steel plates 6 are connected by high-strength friction type bolts, the outer sides of the energy consumption flange steel plates 6 are provided with restraining cover plates 7, a prestressed tendon pore channel 14 is reserved in the prefabricated reinforced concrete column 12 along the direction of the welding main steel beam 2, the prestressed reinforcement structure is characterized in that a prestressed reinforcement 8 is arranged in the prestressed reinforcement hole 14, the prestressed reinforcement 8 penetrates through the reserved prestressed reinforcement hole 14 and compresses the welded main steel beam 2 and the prefabricated reinforced concrete column 12 through tensioning prestress, and a jacket steel plate hoop 10 is arranged at the joint of the prefabricated concrete frame column 1.
Through the scheme of the invention, the reinforced buffer support structure 15 is symmetrically connected between the secondary steel beam 3 and the precast concrete frame column 1, the reinforced buffer support structure 15 comprises a connecting sleeve 16, a movable cavity 17 is formed in the connecting sleeve 16, guide sliding grooves 18 are symmetrically formed in two sides of the inner wall of the movable cavity 17, a first movable support column 19 and a second movable support column 20 are respectively arranged at two ends of the movable cavity 17, guide sliding blocks 21 are respectively arranged on two sides of one end, located in the movable cavity 17, of the first movable support column 19 and the second movable support column 20, the guide sliding blocks 21 are matched with the guide sliding grooves 18, connecting blocks 22 are respectively arranged at one ends, located in the movable cavity 17, of the first movable support column 19 and the second movable support column 20, two-way hydraulic buffer rods 23 are connected between the connecting blocks 22, the center of the two-way hydraulic buffer rod 23 is symmetrically provided with an installation fixing plate 24, the installation fixing plate 24 is symmetrically connected with a buffer spring 25 between the first movable supporting column 19 and the second movable supporting column 20, the top ends of the first movable supporting column 19 and the second movable supporting column 20 are connected with a movable connecting structure 26, the movable connecting structure 26 comprises a connecting block 27, a movable cavity 28 is arranged in the connecting block 27, a movable connecting rod 30 is movably connected in the movable cavity 28 through a movable shaft 29, the movable connecting rod 30 is provided with a connecting plate 31, the connecting plate 31 is symmetrically provided with mounting nails 32, when in use, the two-way hydraulic buffer rod 23 can be used as a main buffer structure by the cooperation of the guide sliding block 21 and the guide sliding groove 18 and by the connection of the first movable supporting column 19 and the second movable supporting column 20 and the cooperation of the guide sliding block 21 and the guide sliding groove 18 under pressure, reduce the pressure that inferior girder steel 3 and precast concrete frame post 1 junction received, cooperate buffer spring 25's effect again, further improve its prestressing force, and when producing deformation, utilize loose axle 29 swing joint's swing joint rod 30 in the activity cavity 28, can further guarantee its connection, beneficial effect: the self-resetting frame structure has the advantages that under the condition that the elastic response of the beam is kept, the self-resetting frame structure generates large lateral movement through the opening and closing response of the beam-column connecting joint, the residual deformation is small, and the maintenance cost after the earthquake is relatively low.
Example two:
as shown in fig. 4, the energy consumption flange steel plate 6 is made of Q235 low yield point steel, the thickness is 4-8mm, and the strength is improved.
Example three:
as shown in fig. 2, the lower steel bar of the cast-in-place reinforced concrete slab 5 does not extend into the secondary steel beam 3 within the width range of the flange of the welded main steel beam 2 and is isolated from the concrete at the end by the PVC pipe 11, so as to weaken the connection between the steel bar and the concrete and reduce the influence of the floor on the stress performance of the connection joint between the main beam and the column.
Example four:
as shown in fig. 1, the secondary steel beam 3 is connected with a reinforced steel plate 33, and the reinforced steel plate 33 is provided with positioning holes 34 to improve the connection strength and stability.
Example five:
as shown in fig. 1, the welding main steel beam 2 and the secondary steel beam 3 are both made of synthetic steel plates, and the surfaces of the welding main steel beam and the secondary steel beams are coated with anti-rust paint, so that the strength of the welding main steel beam and the welding secondary steel beam are improved, and the service life of the welding main steel beam is prolonged.
Example six:
as shown in fig. 1, the two sides of the outer steel hoop 10 are provided with positioning nails 35 for positioning and fixing.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
When in actual application, when using, utilize the connection of movable support post 19 and two 20 of movable support post, utilize the cooperation of direction slider 21 and direction spout 18, when receiving pressure, two-way hydraulic buffer pole 23 can regard as main buffer structure, reduce the pressure that time girder steel 3 and precast concrete frame post 1 junction received, the effect of deuterogamying buffer spring 25, further improve its prestressing force, and when producing deformation, utilize movable shaft 29 swing joint's swing joint rod 30 in the activity cavity 28, can further guarantee its connection, beneficial effect: the self-resetting frame structure has the advantages that under the condition that the elastic response of the beam is kept, the self-resetting frame structure generates large lateral movement through the opening and closing response of the beam-column connecting joint, the residual deformation is small, and the maintenance cost after the earthquake is relatively low.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A connecting device for a self-resetting anti-side frame and a floor slab is characterized by comprising a precast concrete frame column (1), wherein a precast reinforced concrete column (12) is formed in the precast concrete frame column (1); the prefabricated concrete frame column is characterized in that a welding main steel beam (2) and a secondary steel beam (3) are connected to the prefabricated concrete frame column (1) respectively, the welding main steel beam (2) and the secondary steel beam (3) are perpendicular to each other, a reinforced buffering supporting structure (15) is symmetrically connected between the secondary steel beam (3) and the prefabricated concrete frame column (1), the reinforced buffering supporting structure (15) comprises a connecting sleeve (16), a first movable cavity (17) is formed in the connecting sleeve (16), guide sliding grooves (18) are symmetrically formed in two sides of the inner wall of the first movable cavity (17), movable supporting columns (19) and movable supporting columns (20) are arranged at two ends of the first movable cavity (17) respectively, guide sliding blocks (21) are arranged on two sides of one end, located in the first movable cavity (17), of the movable supporting columns (19) and the movable supporting columns (20), the guide sliding block (21) is matched with the guide sliding groove (18), one end of the first movable supporting column (19) and one end of the second movable supporting column (20) which are located in the first movable cavity (17) are respectively provided with a first connecting block (22), two-way hydraulic buffer rods (23) are connected between the first connecting blocks (22), the center of each two-way hydraulic buffer rod (23) is symmetrically provided with an installation fixing plate (24), the installation fixing plates (24) are symmetrically connected with buffer springs (25) between the first movable supporting column (19) and the second movable supporting column (20), the top ends of the first movable supporting column (19) and the second movable supporting column (20) are respectively connected with a movable connecting structure (26), each movable connecting structure (26) comprises a second connecting block (27), and a second movable cavity (28) is arranged in the second connecting block (27), a movable connecting rod (30) is movably connected in the second movable cavity (28) through a movable shaft (29), a connecting plate (31) is arranged on the movable connecting rod (30), mounting nails (32) are symmetrically arranged on the connecting plate (31), profiled steel plates (4) are vertically arranged in the plate rib direction of the welding main steel beam (2), the profiled steel plates (4) are connected with the welding main steel beam (2) through shear resistant studs (9), cast-in-situ reinforced concrete slabs (5) are arranged on the profiled steel plates (4), energy dissipation flange steel plates (6) are arranged at the upper end and the lower end of the prefabricated reinforced concrete column (12), the fixed ends of the energy dissipation flange steel plates (6) are connected through high-strength friction bolts, a constraint cover plate (7) is installed at the outer side of the energy dissipation flange steel plates (6), and a prestressed reinforcement pore canal (14) is reserved in the direction of the welding main steel beam (2) on the prefabricated reinforced concrete column (12), a prestressed tendon (8) is arranged in the prestressed tendon pore passage (14), the prestressed tendon (8) penetrates through the reserved prestressed tendon pore passage (14) and tightly presses the welding main steel beam (2) and the precast reinforced concrete column (12) through tensioning prestress, an outer sleeve steel plate hoop (10) is arranged at the joint of the precast concrete frame column (1), and the energy consumption flange steel plate (6) is made of Q235 low-yield-point steel and has the thickness of 4-8 mm; when the connecting structure is used, the movable supporting column I (19) is connected with the movable supporting column II (20), the guide sliding block (21) is matched with the guide sliding groove (18), when pressure is applied, the bidirectional hydraulic buffer rod (23) can serve as a main buffer structure, the pressure applied to the connecting position of the secondary steel beam (3) and the precast concrete frame column (1) is reduced, the prestress of the connecting structure is further improved under the action of the buffer spring (25), and when deformation is generated, the movable connecting rod (30) movably connected with the movable shaft (29) in the second movable cavity (28) is used, so that the connection of the movable connecting rod can be further ensured; under the condition of elastic response of the self-resetting anti-side frame on the retaining beam, the opening and closing response of the beam-column connecting joint generates large lateral movement, and the residual deformation is small; and the lower reinforcing steel bar of the cast-in-place reinforced concrete slab (5) does not extend into the secondary steel beam (3) within the width range of the flange of the welded main steel beam (2) and is isolated from the concrete at the end through a PVC pipe (11).
2. The connecting device of a self-resetting anti-side frame and a floor slab as claimed in claim 1, characterized in that a reinforced steel plate (33) is connected to the secondary steel beam (3), and the reinforced steel plate (33) is provided with a positioning hole (34).
3. The self-resetting anti-side frame and floor connection device of claim 1, characterized in that the welded main steel beam (2) and the secondary steel beam (3) are made of synthetic steel plates, and the surfaces of the welded main steel beam and the secondary steel beam are coated with anti-rust paint.
4. A self-resetting anti-side frame and floor connecting device according to claim 1, characterized in that the two sides of the outer steel hoop (10) are provided with positioning nails (35).
5. A self-resetting anti-side frame and floor connection device according to claim 1, characterized in that the restraining cover plate (7) and the energy dissipation flange steel plate (6) are connected by welding.
6. A self-resetting anti-side frame and floor connection device according to claim 1, wherein the first movable support column (19) and the second movable support column (20) are provided with wear resistant layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110111109.2A CN112922210B (en) | 2021-01-27 | 2021-01-27 | Connecting device for self-resetting anti-side frame and floor slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110111109.2A CN112922210B (en) | 2021-01-27 | 2021-01-27 | Connecting device for self-resetting anti-side frame and floor slab |
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| CN112922210A CN112922210A (en) | 2021-06-08 |
| CN112922210B true CN112922210B (en) | 2022-01-25 |
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