CN114150910A - Precast concrete post girder steel connected system and building - Google Patents
Precast concrete post girder steel connected system and building Download PDFInfo
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- CN114150910A CN114150910A CN202111428776.XA CN202111428776A CN114150910A CN 114150910 A CN114150910 A CN 114150910A CN 202111428776 A CN202111428776 A CN 202111428776A CN 114150910 A CN114150910 A CN 114150910A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
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Abstract
The invention provides a precast concrete column steel beam connection system and a building, relates to the technical field of fabricated buildings, and aims to solve the problem that the joint of an upper concrete column and a lower concrete column bears overlarge bending moment during earthquake. A precast concrete column steel beam connecting system comprises an upper concrete column, a lower concrete column, an upper connecting piece and a lower connecting piece, wherein the upper concrete column is fixedly connected with the upper connecting piece, the lower concrete column is fixedly connected with the lower connecting piece, the upper connecting piece is fixedly connected with the lower connecting piece, and a rubber pad is clamped between the upper connecting piece and the lower connecting piece. The precast concrete column steel beam connection system and the building provided by the invention can realize that the local part of the rubber pad can be compressed and deformed when an earthquake occurs, and the rotation at the midpoint of the concrete column can generate a constraint release effect, so that the joint of the upper concrete column and the lower concrete column only bears the axial force along the axial direction of the concrete column and the horizontal shearing force vertical to the axial direction of the concrete column, and the safety of a house is improved.
Description
Technical Field
The invention relates to the technical field of fabricated buildings, in particular to a precast concrete column steel beam connecting system and a building.
Background
With the continuous development of building industrialization in China, the assembly type structure is widely applied to various buildings. In the assembly type building construction process, the integral connection system of the concrete column and the steel beam is relatively deficient, and the concrete column and the column are generally connected rigidly, so that the splicing difficulty is high.
Disclosure of Invention
The invention aims to provide a precast concrete column steel beam connecting system to solve the technical problem that the joint of an upper concrete column and a lower concrete column bears overlarge bending moment during earthquake.
The invention provides a precast concrete column steel beam connecting system which comprises an upper concrete column, a lower concrete column, an upper connecting piece and a lower connecting piece, wherein the upper concrete column is fixedly connected with the upper connecting piece, the lower concrete column is fixedly connected with the lower connecting piece, the upper connecting piece is fixedly connected with the lower connecting piece, and a rubber pad is clamped between the upper connecting piece and the lower connecting piece.
Through set up the rubber pad between last connecting piece and lower connecting piece, can become the rigid connection for having certain flexible connection with the connection between last connecting piece and the lower connecting piece, the part of rubber pad can receive the compression and warp when the earthquake takes place, can produce restraint release effect to the rotation of concrete column midpoint department, make the junction of going up concrete column and lower concrete column, only bear the axial force along concrete column axial direction and the horizontal shear force of perpendicular to concrete column axial direction, change fixed connection's node to articulated node in the certain meaning, the moment of flexure of concrete column junction has obviously been reduced, the security of building has been improved. In addition, become articulated node for this hookup location becomes the post inflection point, and this kind of connection form can effectively avoid the great problem of the prefabricated concrete post rigidity concatenation degree of difficulty, has simplified component production and construction installation.
In the preferred technical scheme, the lower connecting piece is provided with a lower upper end plate, the upper connecting piece is provided with an upper lower end plate, the lower upper end plate is connected with the upper lower end plate through a first threaded connecting piece, and the rubber pad is clamped.
Through setting up down connect upper header and upper connection lower header to utilize first threaded connection spare to connect the two, can realize the fixed connection of upper connector and lower connector, moreover, after adopting threaded connection spare to limit the maximum movement distance of upper connection lower header and lower connection upper header, can cooperate with the rubber pad, make upper connection lower header and lower connection upper header compression rubber pad, thereby make the hookup location become the post inflection point.
In the preferred technical scheme, the connecting piece is still including connecting the stand and connecting the lower end plate down, connect stand fixed connection down connect the lower end plate with connect the upper end plate down, the concrete column has down the pre-buried longitudinal reinforcement of post down, the top processing of the pre-buried longitudinal reinforcement of post is threaded down, the top of the pre-buried longitudinal reinforcement of post is passed down connect the lower end plate and by first nut fastening down.
The lower column embedded longitudinal steel bars in the lower concrete column penetrate through the lower connecting lower end plate and are fastened by the first nuts, the lower concrete column can be effectively fixed with the lower connecting piece, the lower column embedded longitudinal steel bars protruding outwards of the lower concrete column are converted into the lower connecting upper end plate which is a plane, so that pressure is uniformly distributed to the rubber pads, and the phenomenon that the upper concrete column and the lower concrete column are inclined at the connecting point under the normal condition is avoided.
In the preferred technical scheme, go up the connecting piece and still include and connect the stand and go up and connect the upper end plate, go up and connect stand fixed connection the upper junction lower end plate with go up and connect the upper end plate, it has the pre-buried longitudinal reinforcement of upper prop to go up the concrete column, the bottom processing of the pre-buried longitudinal reinforcement of upper prop has the screw thread, the bottom of the pre-buried longitudinal reinforcement of upper prop passes on connect the upper end plate and fastened by the second nut.
The upper column embedded longitudinal steel bars in the upper concrete column penetrate through the upper connecting upper end plate and are fastened by the second nuts, the upper concrete column can be effectively fixed with the upper connecting piece, and the upper column embedded longitudinal steel bars protruding outwards of the upper concrete column are converted into the upper connecting lower end plate which is a plane, so that pressure is uniformly distributed to the rubber pads, and the upper concrete column and the lower concrete column are prevented from inclining at the connecting point under the normal condition.
In the preferred technical scheme, the thickness of the rubber pad is 55mm-65 mm.
The thickness of the rubber pad is set to be the size, so that enough deformation space can be provided, and the requirement of releasing bending moment is met; moreover, the deformation of the rubber pad under the action of the axial load of the concrete columns can be properly controlled, and the settlement difference between different concrete columns is controlled within a proper range.
In the preferred technical scheme, the beam is provided with a beam anchor plate, the upper concrete column is provided with an upper column embedded transverse steel bar, and the end part of the upper column embedded transverse steel bar is provided with a thread and penetrates out of the upper concrete column along the transverse direction; and the end part of the embedded transverse steel bar of the upper column penetrates through the beam anchor plate and is fastened by a third nut.
The upper column embedded transverse steel bars are transmitted to the upper concrete column and fixed with the beam anchor plate, the load of the cross beam can be directly transferred to the upper column embedded transverse steel bars of the upper concrete column through the beam anchor plate, and the upper column embedded transverse steel bars are embedded in the upper concrete column, so that the large load can be borne, and the bearing capacity of a connection system is improved.
In the preferred technical scheme, still include the angle sign indicating number, the laminating of the first curb plate of angle sign indicating number the roof beam anchor slab, the tip of the pre-buried transverse reinforcement of upper prop passes first curb plate and quilt the third nut fastening, the laminating of the second curb plate of angle sign indicating number the web of crossbeam is fastened by second threaded connection spare.
Through setting up the angle sign indicating number, utilize the first curb plate and the second curb plate of angle sign indicating number respectively with the web laminating of roof beam anchor slab and crossbeam, be favorable to the joint strength of stiffening beam anchor slab and crossbeam. Moreover, the embedded transverse steel bar of the upper column directly passes through the first side plate, the acting force can be shared to the beam anchor plate through the first side plate of the angle code, and the angle code can be directly utilized to transmit the acting force provided by the upper concrete column to the cross beam to the web of the cross beam, so that the load of the beam anchor plate is reduced.
In an optimal technical scheme, the beam further comprises an upper flange, the beam anchor plate protrudes upwards from the upper flange, an upper rib plate is welded between the beam anchor plate and the upper flange, and the upper rib plate is perpendicular to the beam anchor plate and the upper flange.
By arranging the upper rib plate to weld the beam anchor plate and the upper flange, the rigidity and the strength of the upper part of the beam anchor plate can be increased, and the overlarge change of the angle between the upper flange and the upper concrete column is avoided.
In an optimal technical scheme, the beam further comprises a lower flange, the beam anchor plate protrudes downwards from the lower flange, a lower rib plate is welded between the beam anchor plate and the lower flange, and the lower rib plate is perpendicular to the beam anchor plate and the lower flange.
Through setting up lower floor welding roof beam anchor slab and last flange, can increase the rigidity and the intensity of roof beam anchor slab lower part, avoid the angle between lower flange and the last concrete column to take place too big change.
The second purpose of the invention is to provide a building, which solves the technical problem that the joint of the existing upper concrete column and the existing lower concrete column bears overlarge bending moment during earthquake.
The building provided by the invention comprises the precast concrete column steel beam connecting system.
By arranging the precast concrete column steel beam connection system in the building, correspondingly, the building has all the advantages of the precast concrete column steel beam connection system, and the description is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a precast concrete column steel beam connection system provided by the embodiment of the invention for grabbing a steel mesh;
FIG. 2 is a schematic perspective view of the precast concrete column steel beam connection system, in which various threaded connectors and reinforcing steel bars are not shown;
FIG. 3 is an exploded perspective view of FIG. 2;
FIG. 4 is a schematic perspective view of the corner brace in the precast concrete column steel beam connection system;
FIG. 5 is a schematic perspective view of an upper connecting member in the precast concrete column steel beam connecting system;
FIG. 6 is a schematic perspective view of a lower connecting member in the precast concrete column-steel beam connecting system;
FIG. 7 is a schematic perspective view of an upper connecting column in the precast concrete column steel beam connecting system;
fig. 8 is a schematic perspective view of a lower connecting column in the precast concrete column steel beam connecting system.
Description of reference numerals:
10-mounting a concrete column; 20-placing a concrete column; 30-an upper connector; 40-lower connector; 50-a cross beam; 60-rubber pad; 70-a first threaded connection;
11-embedding longitudinal steel bars on the upper column; 12-embedding transverse steel bars on the upper column;
21-embedding longitudinal steel bars in the lower column;
31-upper connecting upper end plate; 32-upper connecting lower end plate; 33-connecting the upright post; 34-a second nut;
41-lower upper end plate; 42-lower connecting lower end plate; 43-lower connecting upright; 44-a first nut;
51-a web; 52-upper flange; 53-lower flange; 54-beam anchor plate; 55-corner connector; 56-upper rib plate; 57-lower rib plate; 58-a second threaded connection; 59-third nut.
Detailed Description
Fig. 1 is a schematic structural diagram of a precast concrete column steel beam connection system provided by the embodiment of the invention for grabbing a steel mesh; FIG. 2 is a schematic perspective view of the precast concrete column steel beam connection system, in which various threaded connectors and reinforcing steel bars are not shown; FIG. 3 is an exploded perspective view of FIG. 2; as shown in fig. 1 to 3, the precast concrete column steel beam connection system provided in this embodiment includes an upper concrete column 10, a lower concrete column 20, an upper connection member 30 and a lower connection member 40, where the upper concrete column 10 is fixedly connected to the upper connection member 30, the lower concrete column 20 is fixedly connected to the lower connection member 40, the upper connection member 30 is fixedly connected to the lower connection member 40, and a rubber gasket 60 is sandwiched between the upper connection member 30 and the lower connection member 40.
The rubber pad 60 is arranged between the upper connecting piece 30 and the lower connecting piece 40, the connection between the upper connecting piece 30 and the lower connecting piece 40 can be changed into rigid connection to be connection with certain flexibility, when an earthquake occurs, the local part of the rubber pad 60 can be compressed to deform, and constraint release effect can be generated on rotation of the middle point of the concrete column, so that the joint of the upper concrete column 10 and the lower concrete column 20 only bears axial force along the axial direction of the concrete column and horizontal shearing force perpendicular to the axial direction of the concrete column, the fixedly connected joint is changed into a hinged joint in a certain sense, and the bending moment of the joint of the concrete column is obviously reduced. In addition, become articulated node for this hookup location becomes the post inflection point, and this kind of connection form can effectively avoid the great problem of the prefabricated concrete post rigidity concatenation degree of difficulty, has simplified component production and construction installation.
As shown in fig. 1 to 3, preferably, the lower connecting member 40 has a lower upper end plate 41, the upper connecting member 30 has an upper lower end plate 32, and the lower upper end plate 41 and the upper lower end plate 32 are connected by a first screw connector 70 and hold the rubber gasket 60. Specifically, the first threaded connector 70 includes a high-strength bolt and a nut that engages the high-strength bolt.
By providing the lower upper end plate 41 and the upper lower end plate 32 and connecting the two by the first screw coupling 70, the fixed connection of the upper coupling 30 and the lower coupling 40 can be realized, and after the maximum movement distance of the upper lower end plate 32 and the lower upper end plate 41 is restricted by the screw coupling, the upper lower end plate 32 and the lower upper end plate 41 can be engaged with the rubber pad 60, so that the upper lower end plate 32 and the lower upper end plate 41 compress the rubber pad 60, thereby making the connection position a point of column recurvation.
In addition, due to the deformation of the rubber pad 60, a part of bending moment at the joint of the upper concrete column 10 and the lower concrete column 20 can be offset, so that the stress of the first threaded connector 70 can be reduced, and the stress requirement can be met by adopting a small number of high-strength bolts and/or bolts with small diameters.
FIG. 6 is a schematic perspective view of a lower connecting member in the precast concrete column-steel beam connecting system; fig. 8 is a schematic perspective view of a lower connecting column in the precast concrete column steel beam connecting system. As shown in fig. 1-3, 6 and 8, preferably, the lower connecting member 40 further includes a lower connecting pillar 43 and a lower connecting lower end plate 42, the lower connecting pillar 43 is fixedly connected to the lower connecting lower end plate 42 and the lower connecting upper end plate 41, the lower concrete column 20 has a lower column embedded longitudinal steel bar 21, the top of the lower column embedded longitudinal steel bar 21 is threaded, and the top of the lower column embedded longitudinal steel bar 21 passes through the lower connecting lower end plate 42 and is fastened by a first nut 44.
The lower connecting lower end plate 42 and the lower connecting upper end plate 41 are both square, the lower connecting upright column 43 is also cross-shaped, and the length of the cross-shaped horizontal and vertical columns is the same as the side length of the square, so that four corners of the lower connecting upper end plate 41 and the lower connecting lower end plate 42 are all positions for placing threaded connectors. In another implementation, the lower connecting pillar 43 may be a circular cylinder, as long as a space with four corners is left between the lower connecting lower end plate 42 and the lower connecting upper end plate 41 for the placement of the screw connectors.
Specifically, the four corners of the lower connecting lower end plate 42 are penetrated by the top end of the lower column embedded longitudinal steel bar 21, the first nuts 44 are located at the four corners of the lower connecting lower end plate 42 and are symmetrically arranged, the center distance of the first nuts 44 meets the specification requirement, and the distance of the lower connecting upright column 43 also meets the specification requirement.
The first screw connectors 70 are disposed at four corners of the lower upper end plate 41, and correspondingly, the first screw connectors 70 are also disposed at four corners of the upper lower end plate 32.
By passing the lower column pre-embedded longitudinal steel bars 21 in the lower concrete column 20 through the lower connecting lower end plate 42 and fastening them by the first nuts 44, the lower concrete column 20 can be effectively fixed with the lower connecting member 40, and the outwardly protruding lower column pre-embedded longitudinal steel bars 21 of the lower concrete column 20 are converted into a planar lower upper end plate 41, so that the pressure is evenly distributed to the rubber pads 60, and the upper concrete column 10 and the lower concrete column 20 are prevented from being inclined at the connecting point under normal conditions.
FIG. 5 is a schematic perspective view of an upper connecting member in the precast concrete column steel beam connecting system; fig. 7 is a schematic perspective view of an upper connecting column in the precast concrete column steel beam connecting system. As shown in fig. 1-3, 5 and 7, preferably, the upper connecting member 30 further includes an upper connecting pillar 33 and an upper end plate 31, the upper connecting pillar 33 is fixedly connected to the upper connecting lower end plate 32 and the upper end plate 31, the upper concrete column 10 has an upper column embedded longitudinal steel bar 11, a thread is processed at the bottom of the upper column embedded longitudinal steel bar 11, and the bottom of the upper column embedded longitudinal steel bar 11 passes through the upper connecting upper end plate 31 and is fastened by a second nut 34.
The upper connecting lower end plate 32 and the upper connecting upper end plate 31 are both square, the upper connecting upright column 33 is also cross-shaped, and the length of the cross-shaped horizontal and vertical is the same as the side length of the square, so that four corners of the upper connecting upper end plate 31 and the upper connecting lower end plate 32 are all positions for placing threaded connecting pieces. In another implementation, the upper connecting pillar 33 may be a circular cylinder as long as four corner spaces are left for the screw connectors to be placed in the upper connecting lower end plate 32 and the upper connecting upper end plate 31.
Specifically, the four corners of the upper connecting end plate 31 are penetrated by the bottom ends of the upper column embedded longitudinal steel bars 11, the second nuts 34 are located at the four corners of the upper connecting end plate 31 and are symmetrically arranged, the center distance of the second nuts 34 is equal to the outer edge of the upper connecting end plate 31, and the distance between the center of the second nuts 34 and the upper connecting column 33 is equal to the specification requirement.
By passing the upper column embedded longitudinal steel bar 11 in the upper concrete column 10 through the upper connecting upper end plate 31 and fastening it by the second nut 34, the upper concrete column 10 can be effectively fixed with the upper connecting member 30, and the upper column embedded longitudinal steel bar 11 protruding outwards of the upper concrete column 10 is converted into the upper connecting lower end plate 32 in a plane, so as to evenly distribute the pressure to the rubber pads 60, and avoid the inclination of the upper concrete column 10 and the lower concrete column 20 at the connecting point under normal conditions.
In the present embodiment, the upper connecting upright 33 and the lower connecting upright 43 are each equally cross-sectioned in the height direction, i.e. they are equally strong in design, because the connecting position of the upper connecting member 30 and the lower connecting member 40 is at the midpoint of the two concrete columns, and in fact, if the connecting position is not at the midpoint, a non-equally strong connection can be used.
In fact, the upper connecting upper end plate 31, the upper connecting lower end plate 32, the lower connecting upper end plate 41 and the lower connecting lower end plate 42 may be square plates with the same size, and the through holes of the upper connecting upper end plate 31 and the lower connecting lower end plate 42 are distributed with the same size. The through holes of the upper connecting lower end plate 32 and the lower connecting upper end plate 41 are distributed in the same way and have the same size. Furthermore, if there is no need to use a smaller bolt or provide a smaller through hole for the upper connecting lower end plate 32 and the lower connecting upper end plate 41, the through holes on the four plates are distributed in the same way, and the size of the through holes can be the same. The upper connecting pillar 33 and the lower connecting pillar 43 may have the same size and shape.
Preferably, the rubber pad 60 has a thickness of 55mm to 65 mm.
If the thickness of the rubber pad 60 is too small, the deformation capability of the rubber pad 60 is not enough, and the effect of releasing bending moment is difficult to achieve; if the thickness of the rubber pad 60 is too large, the deformation of the rubber pad 60 is too large under the action of the axial load of the column, which may cause a large settling difference between different columns, and is disadvantageous to the structure. According to analysis of a number of experimental results, the thickness of the rubber mat 60 may be set to be between 55mm and 65mm, and conventionally 60mm may be a superior thickness of the rubber mat 60.
The thickness of the rubber pad 60 is set to be the above size, so that enough deformation space can be provided, and the requirement of releasing bending moment is met; moreover, the deformation of the rubber pad 60 under the axial load of the concrete columns can be properly controlled, and the settlement difference between different concrete columns can be controlled within a proper range.
As shown in fig. 1-3, it is preferable that the concrete column further includes a cross beam 50, the cross beam 50 has a beam anchor plate 54, the upper concrete column 10 has an upper column embedded transverse steel bar 12, and the end of the upper column embedded transverse steel bar 12 is threaded and penetrates out of the upper concrete column 10 along the transverse direction; the end of the upper column embedded transverse reinforcement 12 passes through the beam anchor plate 54 and is fastened by a third nut 59.
The upper column embedded transverse steel bars 12 penetrate out of the upper concrete column 10 and are fixed with the beam anchor plate 54, so that the load of the cross beam 50 can be directly transferred into the upper column embedded transverse steel bars 12 of the upper concrete column 10 through the beam anchor plate 54, and the upper column embedded transverse steel bars 12 are already embedded in the upper concrete column 10, so that larger load can be borne, and the bearing capacity of a connection system is improved.
In the following embodiments, the upper column embedded transverse steel bar 12 passes through the first side plate of the corner connector 55. In fact, in another implementation, the corner brace 55 may not be provided, and the third nut 59 may be attached to the beam anchor plate 54, so as to fix the cross beam 50 to the upper concrete column 10. In addition, the third nuts 59 are directly connected with the end parts of the upper column embedded transverse steel bars 12, the beam anchor plates 54 can be directly sleeved on the upper column embedded transverse steel bars 12 during assembly, and then the nuts are screwed, so that the assembly time is reduced.
Fig. 4 is a schematic perspective view of the corner brace in the precast concrete column-steel beam connection system. As shown in fig. 1-3 and 4, it is preferable that the angle joint device further includes an angle joint 55, a first side plate of the angle joint 55 is attached to the beam anchor plate 54, an end portion of the upper column embedded transverse steel bar 12 passes through the first side plate and is fastened by a third nut 59, and a second side plate of the angle joint 55 is attached to the web 51 of the cross beam 50 and is fastened by a second threaded connector 58.
Specifically, one end of each cross beam 50 is provided with two corner connectors 55, the two corner connectors 55 are respectively located on two opposite sides of the web 51, and the second threaded connector 58 can penetrate through the second side plates of the two corner connectors 55. In this embodiment, two columns of through holes are provided on each of the first side plate and the second side plate of the corner connector 55, each column has five through holes, and each row of through holes on the first side plate and the second side plate are horizontally arranged in pairs. In other implementation manners, other numbers of through holes may be provided, and other arrangement manners may also be adopted. In this embodiment, the corner connector 55 is an L-shaped member in plan view, and the first side plate and the second side plate are welded or formed by bending a steel plate. In fact, the connecting member may take other forms, such as having ribs in the middle in the height direction, or having ribs at both the top and bottom in the height direction.
Through setting up angle sign indicating number 55, utilize first curb plate and the laminating of second curb plate and the web 51 of roof beam anchor slab 54 and crossbeam 50 respectively of angle sign indicating number 55, be favorable to strengthening roof beam anchor slab 54 and crossbeam 50's joint strength. Moreover, the upper column embedded transverse steel bars 12 directly penetrate through the first side plate, acting force can be distributed to the beam anchor plate 54 through the first side plate of the angle code 55, the acting force provided by the upper concrete column 10 to the cross beam 50 can be directly transmitted to the web plate 51 of the cross beam 50 through the angle code 55, and load of the beam anchor plate 54 is reduced.
As shown in fig. 1-3, the cross beam 50 preferably further includes an upper flange 52, a beam anchor plate 54 protruding upward from the upper flange 52, an upper rib 56 welded between the beam anchor plate 54 and the upper flange 52, and the upper rib 56 perpendicular to both the beam anchor plate 54 and the upper flange 52.
By providing the upper rib 56 to weld the beam anchor plate 54 and the upper flange 52, the stiffness and strength of the upper portion of the beam anchor plate 54 can be increased, avoiding excessive changes in the angle between the upper flange 52 and the upper concrete column 10.
As shown in fig. 1 to 3, preferably, the cross beam 50 further includes a lower flange 53, the beam anchor plate 54 protrudes downward from the lower flange 53, a lower rib 57 is welded between the beam anchor plate 54 and the lower flange 53, and the lower rib 57 is perpendicular to both the beam anchor plate 54 and the lower flange 53.
By providing the lower ribs 57 to weld the beam anchor plate 54 and the upper flange 52, the stiffness and strength of the lower portion of the beam anchor plate 54 can be increased, avoiding excessive changes in the angle between the lower flange 53 and the upper concrete column 10.
In conclusion, as a novel connecting system of the precast concrete column and the steel beam, the system is assembled by adopting the full bolts, the welding work is completed in a factory, the full bolts are adopted for through connection on site, the quality is reliable, and the construction is efficient; the embodiment reduces the size of the prefabricated part, facilitates factory production, is easy to disassemble and replace, reduces the transportation and hoisting difficulty of the prefabricated part, can realize high-speed modular assembly construction, and is particularly suitable for high-rise or super high-rise buildings.
The application also provides a building, including above-mentioned precast concrete post girder steel connection system.
By arranging the precast concrete column steel beam connection system in the building, correspondingly, the building has all the advantages of the precast concrete column steel beam connection system, and the description is omitted.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The prefabricated concrete column steel beam connecting system is characterized by comprising an upper concrete column (10), a lower concrete column (20), an upper connecting piece (30) and a lower connecting piece (40), wherein the upper concrete column (10) is fixedly connected with the upper connecting piece (30), the lower concrete column (20) is fixedly connected with the lower connecting piece (40), and a rubber pad (60) is clamped between the upper connecting piece (30) and the lower connecting piece (40) in fixed connection.
2. The precast concrete column steel beam connection system of claim 1, wherein the lower connecting member (40) has a lower upper end plate (41), the upper connecting member (30) has an upper lower end plate (32), and the lower upper end plate (41) and the upper lower end plate (32) are connected by a first screw connector (70) and clamp the rubber gasket (60).
3. The precast concrete column steel beam connection system of claim 2, wherein the lower connection member (40) further comprises a lower connection column (43) and a lower connection lower end plate (42), the lower connection column (43) is fixedly connected with the lower connection lower end plate (42) and the lower connection upper end plate (41), the lower concrete column (20) is provided with a lower column embedded longitudinal steel bar (21), the top of the lower column embedded longitudinal steel bar (21) is provided with a thread, and the top of the lower column embedded longitudinal steel bar (21) penetrates through the lower connection lower end plate (42) and is fastened by a first nut (44).
4. The precast concrete column steel beam connection system of claim 2, wherein the upper connection member (30) further comprises an upper connection column (33) and an upper connection upper end plate (31), the upper connection column (33) is fixedly connected with the upper connection lower end plate (32) and the upper connection upper end plate (31), the upper concrete column (10) is provided with upper column embedded longitudinal steel bars (11), threads are processed at the bottom of the upper column embedded longitudinal steel bars (11), and the bottom of the upper column embedded longitudinal steel bars (11) penetrates through the upper connection upper end plate (31) and is fastened by second nuts (34).
5. The precast concrete column steel beam connection system of claim 1, wherein the rubber mat (60) has a thickness of 55mm to 65 mm.
6. The precast concrete column steel beam connection system according to any one of claims 1 to 5, further comprising the cross beam (50), wherein the cross beam (50) is provided with a beam anchor plate (54), the upper concrete column (10) is provided with an upper column embedded transverse steel bar (12), and the end part of the upper column embedded transverse steel bar (12) is threaded and penetrates out of the upper concrete column (10) along the transverse direction; the end part of the upper column embedded transverse steel bar (12) penetrates through the beam anchor plate (54) and is fastened by a third nut (59).
7. The precast concrete column steel beam connection system of claim 6, further comprising an angle brace (55), wherein a first side plate of the angle brace (55) is attached to the beam anchor plate (54), an end portion of the upper column embedded transverse steel bar (12) passes through the first side plate and is fastened by the third nut (59), and a second side plate of the angle brace (55) is attached to the web (51) of the cross beam (50) and is fastened by a second threaded connector (58).
8. The precast concrete column steel beam connection system of claim 6, wherein the cross beam (50) further comprises an upper flange (52), the beam anchor plate (54) protrudes upwards from the upper flange (52), an upper rib plate (56) is welded between the beam anchor plate (54) and the upper flange (52), and the upper rib plate (56) is perpendicular to both the beam anchor plate (54) and the upper flange (52).
9. The precast concrete column steel beam connection system of claim 6, wherein the cross beam (50) further comprises a lower flange (53), the beam anchor plate (54) protrudes downward from the lower flange (53), a lower rib plate (57) is welded between the beam anchor plate (54) and the lower flange (53), and the lower rib plate (57) is perpendicular to both the beam anchor plate (54) and the lower flange (53).
10. A building comprising a precast concrete column steel beam connection system as claimed in any one of claims 1 to 9.
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| CN202111428776.XA CN114150910A (en) | 2021-11-29 | 2021-11-29 | Precast concrete post girder steel connected system and building |
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