CN111502034B - Joint connecting device of steel-concrete combined column and beam and application thereof - Google Patents
Joint connecting device of steel-concrete combined column and beam and application thereof Download PDFInfo
- Publication number
- CN111502034B CN111502034B CN202010342279.7A CN202010342279A CN111502034B CN 111502034 B CN111502034 B CN 111502034B CN 202010342279 A CN202010342279 A CN 202010342279A CN 111502034 B CN111502034 B CN 111502034B
- Authority
- CN
- China
- Prior art keywords
- steel
- plate
- plates
- skeleton
- node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The invention discloses a joint connecting device of a steel-concrete combined column and a beam and application thereof, belonging to the technical field of buildings and structural engineering. The joint connecting device can be prefabricated in a factory and then conveyed to a construction site for construction, belongs to an assembly type structure, and has the advantages of high construction efficiency, environmental protection, energy conservation and the like. When the joint connecting device is used for connecting a steel-concrete combined column and a reinforced concrete beam, the connection of the beam column can be completed only by connecting a square steel pipe with a first side plate by welding, connecting a second side plate with a lower end plate by a fastener, connecting angle steel with a first steel bar or a second steel bar, connecting a third side plate with a first steel plate or a second steel plate, and connecting U-shaped steel with a third steel plate or a fourth steel plate to obtain a connected beam column steel framework, and then pouring concrete into the connected beam column structural steel framework, so that the joint connecting device has the advantage of simple connection.
Description
Technical Field
The invention relates to a joint connecting device of a steel-concrete combined column and a beam and application thereof, belonging to the technical field of buildings and structural engineering.
Background
The steel-concrete combined column is designed based on the combination of better tensile property of steel and better compression resistance of concrete, and compared with a reinforced concrete column with the same section, the steel-concrete combined column has the advantages that the bearing capacity and the rigidity are obviously improved, and the steel-concrete combined column has good ductility and energy consumption performance. And because the steel part of the steel-concrete combined column can be prefabricated in a factory, the steel is delivered to a construction site for splicing after being manufactured, concrete is poured after the splicing, and the steel can also be used as a concrete template in the process of pouring the concrete, so that the use of a mould and the process of on-site formwork support are reduced, compared with the reinforced concrete column, the steel-concrete combined column also has the advantages of less on-site construction workload, short construction period, low construction cost and the like. These advantages have led to the widespread use of steel-concrete composite columns in the construction field.
At present, the joint connection between a steel-concrete combined column and a beam, particularly a reinforced concrete beam is mainly realized by binding reinforcing steel bars on site, supporting a template and pouring concrete, the joint has the defect of low construction efficiency due to the requirement of on-site wet operation, and the problems of difficult connection and complex operation exist in the connection between the components of the joint due to the fact that reinforcing meshes in the joint are dense and concrete is poured to meet the requirement of 'strong joint and weak component'. Therefore, it is urgently needed to find a joint connection structure with high construction efficiency and simple connection to realize joint connection between a steel-concrete combined column and a beam, especially a reinforced concrete beam.
Disclosure of Invention
[ problem ] to
The invention aims to provide a joint connecting device which is high in construction efficiency and simple in connection so as to realize joint connection between a steel-concrete combined column and a beam, in particular to a reinforced concrete beam.
[ solution ]
In order to solve the technical problem, the invention provides a joint connecting device of a steel-concrete combined column and a beam, wherein the joint connecting device 1 comprises a first steel framework 2 and a square steel plate 3; the first steel skeleton 2 is a 'well' -shaped steel skeleton formed by connecting a node abdomen steel skeleton 4, a node upper flange steel skeleton 5 and a node lower flange steel skeleton 6, and comprises a cross part 7 and four branches 8;
the node abdomen steel skeleton 4 is a cross-shaped abdomen steel skeleton formed by crossing two first steel plates 9 vertical to an X axis and two second steel plates 10 vertical to a Y axis;
the node upper flange steel framework 5 is a well-shaped upper flange steel framework formed by crossing or staggering two first steel bars 11 vertical to the Z axis and two second steel bars 12 vertical to the Z axis;
the node lower flange steel skeleton 6 is a cross-shaped lower flange steel skeleton formed by intersecting or staggering a third steel plate 13 perpendicular to the Z axis and a fourth steel plate 14 perpendicular to the Z axis;
the node upper flange steel framework 5 is connected above the node abdomen steel framework 4, wherein two first steel bars 11 of the node upper flange steel framework 5 are respectively connected with two first steel plates 9 of the node abdomen steel framework 4, and two second steel bars 12 of the node upper flange steel framework 5 are respectively connected with two second steel plates 10 of the node abdomen steel framework 4;
the node lower flange steel skeleton 6 is connected below the node abdomen steel skeleton 4, wherein two first steel plates 9 of the node abdomen steel skeleton 4 are connected through a third steel plate 13 of the node lower flange steel skeleton 6, and two second steel plates 10 of the node abdomen steel skeleton 4 are connected through a fourth steel plate 14 of the node lower flange steel skeleton 4;
the number of the square steel plates 3 is four, and the four square steel plates 3 are respectively hooped on four branches 8 of the first steel framework 2.
In one embodiment of the present invention, the two first steel bars 11 of the node upper flange steel skeleton 5 are perpendicularly welded to the two first steel plates 9 of the node abdomen steel skeleton 4; two second steel bars 12 of the node upper flange steel framework 5 are vertically welded to two second steel plates 10 of the node abdomen steel framework 4; the third steel plate 13 of the node lower flange steel framework 6 is vertically welded to the two first steel plates 9 of the node abdomen steel framework 4; the fourth steel plate 14 of the joint lower flange steel framework 6 is vertically welded to the two second steel plates 10 of the joint abdomen steel framework 4.
In one embodiment of the present invention, a portion of the first steel plate 9 located between two second steel plates 10 is provided with a plurality of first preformed holes 15; a plurality of second reserved holes 16 are formed in the part, located between the two first steel plates 9, of the second steel plate 10; and a plurality of third reserved holes 17 are formed at the intersection or the staggered position of the third steel plate 13 and the fourth steel plate 14.
In one embodiment of the present invention, a plurality of gas outlets 18 are formed at the intersection or the intersection of the first steel strip 11 and the second steel strip 12.
In one embodiment of the invention, the steel plate 3 is positioned at one end of the branch near the intersection 7.
In one embodiment of the present invention, the "square" steel plate 3 includes an upper end plate 19 parallel to the Z axis, a lower end plate 20 parallel to the Z axis, and two first side plates 21 parallel to the Z axis, wherein the upper end plate 19 is located above the node upper flange steel skeleton 5, the lower end plate 20 is located below the node lower flange steel skeleton 6, and the two first side plates 21 are respectively located at two ends of the upper end plate 19 and the lower end plate 20 to connect the upper end plate 19 and the lower end plate 20.
In one embodiment of the present invention, the upper end plate 19 of the steel plate 3 is vertically welded to the first steel bar 11 or the second steel bar 12 of the flange steel framework 5; the lower end plate 20 of the square steel plate 3 is vertically welded to the third steel plate 13 or the fourth steel plate 14 of the node lower flange steel framework 6; the first side plate 21 of the square steel plate 3 is vertically welded to the first steel plate 9 or the second steel plate 10 of the node abdomen steel framework 4.
In an embodiment of the present invention, the upper end plate 19 is parallel to the Z axis, and a plurality of fourth preformed holes 22 are formed on the upper end plate 19.
In one embodiment of the present invention, the first side plate 21 is a corrugated plate.
In one embodiment of the present invention, the node connecting device 1 comprises a plurality of upper flange connecting plates 23 and a plurality of lower flange connecting plates 24, wherein one end of the upper flange connecting plate 23 near the intersection 7 is connected to one end of the first steel bar 11 or the second steel bar 12 far away from the intersection 7, and one end of the lower flange connecting plate 24 near the intersection 7 is connected to one end of the third steel plate 13 or the fourth steel plate 14 far away from the intersection 7.
In one embodiment of the invention, the upper flange connection plate 23 is positioned above the first steel bar 11 and/or the second steel bar 12.
In one embodiment of the present invention, the lower flange connecting plate 24 is located above the third steel plate 13 and/or the fourth steel plate 14.
In one embodiment of the present invention, the end of the upper flange connecting plate 23 near the intersection 7 is connected to the end of the first steel bar 11 or the second steel bar 12 far from the intersection 7 by a fastener; one end of the lower flange connecting plate 24 close to the intersection 7 is connected with one end of the third steel plate 13 or the fourth steel plate 14 far away from the intersection 7 through a fastener.
In one embodiment of the invention, there are eight of said upper flange connection plates 23; the lower flange connecting plate 24 has four pieces.
In one embodiment of the present invention, the node connecting device 1 comprises a plurality of beam connecting plates 25; the beam connecting plate 25 is parallel to the first steel plate 9 or the second steel plate 10, and one end of the beam connecting plate 25 close to the intersection 7 is connected with one end of the first steel plate 9 or the second steel plate 10 far away from the intersection 7.
In one embodiment of the present invention, eight beam connecting plates 25 are provided, four ends of the eight beam connecting plates 25 close to the intersection 7 are connected to the ends of the first steel plates 9 far from the intersection 7 by fasteners, the four beam connecting plates 25 connected to the first steel plates 9 are located between the two first steel plates 9, the other four ends of the eight beam connecting plates 25 close to the intersection 7 are connected to the ends of the second steel plates 10 far from the intersection 7 by fasteners, and the four beam connecting plates 25 connected to the second steel plates 10 are located between the two second steel plates 10.
In one embodiment of the invention, the beam connecting plate 25 is connected to the first steel plate 9 or the second steel plate 10 by a fastener.
In one embodiment of the present invention, the node connecting device 1 comprises a plurality of column adapter plates 26; the column adapter plate 26 is located below the lower end plate 20 of the square steel plate 3 and connected with the lower end plate 20 of the square steel plate 3.
In one embodiment of the present invention, there are four column adapters 26, and four column adapters 26 are respectively vertically welded to the lower end plates 20 of the four "square" shaped steel plates 3.
In one embodiment of the present invention, four pillar patches 26 are respectively welded vertically to the lower end plates 20 of the four "square" steel plates 3.
In one embodiment of the invention, the fastener is a bolt.
In one embodiment of the invention, the bolt is a high-strength bolt.
The invention also provides a method for connecting the steel-concrete combined column and the beam, wherein the steel-concrete combined column 27 comprises a second steel framework 28; the second steel skeleton 28 is a rectangular closed steel skeleton formed by connecting four square steel tubes 29 parallel to the Z axis and four second side plates 30 parallel to the Z axis and in pairs;
the beam 31 includes a third steel skeleton 32; the third steel skeleton 32 is a U-shaped steel skeleton composed of a beam upper flange steel skeleton 33, a beam web part steel skeleton 34 and a beam lower flange steel skeleton 35, wherein the beam upper flange steel skeleton 33 comprises two angle steels 36 with opposite openings, the beam web part steel skeleton 34 comprises two third side plates 37 parallel to the Z axis and two beam sealing plates 44 parallel to the Z axis, the beam lower flange steel skeleton 35 comprises one U-shaped steel 38, the two angle steels 36 are respectively connected with two ends of the U-shaped steel 38 through the two third side plates 37, and three edges of the beam sealing plates 44 are respectively connected with the angle steels 36, the third side plates 37 and the U-shaped steel;
the method comprises the steps that the node connecting device 1 is used, a square steel pipe 29 is connected with a first side plate 21 of two adjacent square steel plates 3, a second side plate 30 is connected with a lower end plate 20 of the square steel plates 3 through a column adapter plate 26, an angle steel 36 of a beam upper flange steel framework 33 is connected with a first steel bar 11 or a second steel bar 12 of a node upper flange steel framework 5 through an upper flange connecting plate 23, a beam sealing plate 44 is connected with a fourth side which is not connected with the angle steel 36, a third side plate 37 and U-shaped steel through a beam connecting plate 25 and a first steel plate 9 or a second steel plate 10 of a node belly steel framework 4, the U-shaped steel 38 of the beam lower flange steel framework 35 is connected with a third steel plate 13 or a fourth steel plate 14 of a node lower flange steel framework 6 through a lower flange connecting plate 24, and a connected beam column steel framework 39 is obtained; and pouring concrete into the connected beam-column structural steel framework 39 to obtain the connected beam-column.
In one embodiment of the present invention, there are four beams 31, and four beams 31 are respectively connected to the ends of the four branches 8 of the first steel framework 2 far away from the intersection 7.
In one embodiment of the present invention, both ends of the third side plate 37 are connected to the angle steel 36 and the U-shaped steel 38 by welding; three sides of the beam sealing plate 44 are respectively connected with the angle steel 36, the third side plate 37 and the U-shaped steel through welding.
In one embodiment of the present invention, the square steel tube 29 is connected to the first side plate 21 of two adjacent steel plates 3 in a shape like a Chinese character kou by welding; the column adapter plate 26 is connected by welding to the second side plate 30; the angle steel 36 is connected with the upper flange connecting plate 23 through a fastener; the beam sealing plate 44 is connected with the beam connecting plate 25 by welding; the U-shaped steel 38 of the beam lower flange steel framework 35 is connected with the lower flange connecting plate 24 through a fastener.
In one embodiment of the invention, the angle 36 is located below the upper flange web 23.
In one embodiment of the present invention, the U-section steel 38 is located below the lower flange connecting plate 24.
In one embodiment of the present invention, the U-shaped steel 38 is formed by welding three fifth steel plates 40.
In one embodiment of the invention, the beam 31 comprises hogging moment rebars 41; the hogging moment reinforcing steel bar 41 simultaneously passes through the fourth reserved holes 22 on the two parallel upper end plates 19.
In one embodiment of the present invention, there are two sets of hogging moment reinforcing bars 41, and the two sets of hogging moment reinforcing bars 41 are perpendicular to each other and the two sets of hogging moment reinforcing bars 41 do not intersect.
In one embodiment of the present invention, the two sets of hogging moment reinforcing bars 41 touch each other.
In one embodiment of the invention, there are four of each of the two sets of hogging moment reinforcing bars 41.
In one embodiment of the present invention, the beam upper flange steel skeleton 33 comprises a flange pulling plate 42; the flange pulling plate 42 is perpendicular to the Z axis and the flange pulling plate 42 is connected between the two angle steels 36.
In one embodiment of the present invention, the flange tie plate 42 is welded between two angle steels.
In one embodiment of the present invention, the beam upper flange skeleton 33 includes longitudinal ribs 43; the longitudinal rib 43 simultaneously penetrates through the first preformed holes 15 on the two first steel plates 9, or the longitudinal rib 43 simultaneously penetrates through the second preformed holes 16 on the two second steel plates 10.
In one embodiment of the present invention, there are two sets of the longitudinal ribs 43, and the two sets of the longitudinal ribs 43 are perpendicular to each other and the two sets of the longitudinal ribs 43 do not intersect.
In one embodiment of the present invention, the second side panel 30 is a corrugated panel.
In one embodiment of the invention, the third side plate 37 is a corrugated plate.
In one embodiment of the present invention, the beam sealing plate 44 is a straight steel plate.
In one embodiment of the invention, the fastener is a bolt.
In one embodiment of the invention, the bolt is a high-strength bolt.
The invention also provides a beam-column structure obtained by the connection method.
The invention also provides the application of the node connecting device or the method or the beam-column structure in buildings.
[ advantageous effects ]
(1) The joint connecting device can be prefabricated in a factory and then conveyed to a construction site for construction, belongs to an assembly type structure, and has the advantages of high construction efficiency, environmental protection, energy conservation and the like.
(2) When the joint connecting device is used for connecting a steel-concrete combined column and a reinforced concrete beam, the connection of the beam column can be completed only by connecting a square steel pipe with a first side plate by welding, connecting a second side plate with a lower end plate by a fastener, connecting angle steel with a first steel bar or a second steel bar, connecting a third side plate with a first steel plate or a second steel plate, and connecting U-shaped steel with a third steel plate or a fourth steel plate to obtain a connected beam column steel framework, and then pouring concrete into the connected beam column structural steel framework, so that the joint connecting device has the advantage of simple connection.
(2) In the beam-column structure obtained by the connection of the node connecting device, cast-in-place concrete is integrated, so that the beam-column structure obtained by the connection of the node connecting device has better overall performance, wherein the horizontal ultimate bearing capacity of the top of the beam-column structure obtained by the connection of the node connecting device is 142.7kN, and the ultimate displacement is 82.6 mm.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of a node connection device.
FIG. 2 is a schematic perspective view of an embodiment of a flange steel skeleton on a node.
FIG. 3 is a partial structural diagram of an embodiment of a steel skeleton of a node belly.
FIG. 4 is a partial structural diagram of an embodiment of a steel skeleton of a lower flange of a node and a U-shaped steel plate.
FIG. 5 is a partial structural view of an embodiment of a steel skeleton of a beam column.
FIG. 6 is a partial structural view of an embodiment of a steel skeleton of a beam column.
FIG. 7 is a partial structural schematic view of one embodiment of a beam.
In fig. 1-7, 1 is a node connecting device, 2 is a first steel skeleton, 3 is a rectangular steel plate, 4 is a node abdomen steel skeleton, 5 is a node upper flange steel skeleton, 6 is a node lower flange steel skeleton, 7 is a cross, 8 is a branch, 9 is a first steel plate, 10 is a second steel plate, 11 is a first steel bar, 12 is a second steel bar, 13 is a third steel plate, 14 is a fourth steel plate, 15 is a first reserved hole, 16 is a second reserved hole, 17 is a third reserved hole, 18 is an air outlet, 19 is an upper end plate, 20 is a lower end plate, 21 is a first side plate, 22 is a fourth reserved hole, 23 is an upper flange connecting plate, 24 is a lower flange connecting plate, 25 is a beam connecting plate, 26 is a column adapter plate, 27 is a steel-concrete combined column, 28 is a second steel skeleton, 29 is a square steel pipe, 30 is a second side plate, 31 is a beam, 32 is a third steel skeleton, 33 is a beam upper flange steel framework, 34 is a beam web part steel framework, 35 is a beam lower flange steel framework, 36 is angle steel, 37 is a third side plate, 38 is U-shaped steel, 39 is a beam column steel framework, 40 is a fifth steel plate, 41 is negative bending moment steel bar, 42 is a flange pulling plate, 43 is a longitudinal bar and 44 is a beam sealing plate.
Detailed Description
In order to clearly understand the technical scheme, the purpose and the effect of the invention, the invention is further explained by combining the drawings and the embodiment:
the following examples refer to the common concrete as C40 concrete, every 1m3The concrete contains 185kg of water, 420kg of cement, 572kg of sand and 1273kg of stones.
The detection methods referred to in the following examples are as follows:
the detection method of the ultimate bearing capacity comprises the following steps:
and (4) carrying out ultimate bearing capacity test research on the steel and concrete combined structure node, and adopting a pseudo-static force loading experiment. The column cap and the column base adopt plane hinged supports to simulate the boundary condition of a reverse bending point, and the beam end adopts a horizontal sliding hinged support, so that a test piece only bears vertical acting force and does not bear horizontal acting force during testing. The test system included 1000 tons of vertical actuator (maximum thrust: 10000kN, maximum pull: 3000kN, stroke:. + -. 300mm) and 150 tons of horizontal actuator (maximum thrust: 1500kN, maximum pull: 1500kN, stroke:. + -. 400 mm). Rollers are provided between the top and bottom plates to allow the horizontal position of the actuator to be adjusted during testing.
Before applying a low-cycle reciprocating load, a test piece is pre-pressed twice by using a vertical jack arranged at the top of a column, the pre-load value is 0.4P which is 740.52kN, then vertical axial pressure is applied in two stages to the preset load, the vertical axial pressure is 0.5P which is 925.65kN, and 1.0P which is 1851.3kN respectively, wherein P is an axial pressure value (the axial pressure ratio is 0.3). And after the application of each level of load is finished, keeping the load for 1min and collecting data. And after the vertical preset axial force is applied, the beam end support is installed, so that extra internal force cannot be introduced into the beam end in the process of applying the axial force. And finally, applying low-cycle reciprocating load to the column end until the test piece fails, wherein the column jacking shaft force is kept constant in the whole loading process.
The detection method of the limit displacement comprises the following steps:
the test adopts a load-displacement dual-control loading mode, and the push direction is taken as the loading positive direction and the pull direction is taken as the negative direction during the test. The test piece is controlled by adopting load before yielding, wherein the yielding load PyAt a load of 0.6P and 142kNy、0.8Py、1.0PyRespectively carrying out 1 time of reciprocating cycle, wherein the loads are respectively 86kN, 114kN and 142 kN; after the test piece is yielded, displacement control is adopted, and the interlayer position is adoptedLoading is carried out on multiples of the displacement angles, the values of the displacement angles are 1/450, 1/400, 1/350, 1/300, 1/300, 1/250, 1/200, 1/150, 1/100, 1/75, 1/50, 1/25 and 1/20, the corresponding displacement values are 8mm, 9mm, 10mm, 12mm, 15mm, 18mm, 24mm, 36mm, 49mm, 73mm, 146mm and 182mm, 1 cycle is carried out on the interlayer displacement angles 1/450, 1/400 and 1/350, 3 cycles are carried out on other interlayer displacement angles, and the test is terminated when the load of the test piece is reduced to 85% of the peak load or the hysteresis loop is unstable.
1 displacement meter is respectively arranged at the top of the test piece column and at the lower part of the upper column, and the deformation of the upper column in the loading process is measured; the column node area is arranged with a cross displacement meter to measure the shear deformation of the node area, the beam root is arranged with an oblique displacement meter to measure the deformation of the plastic hinge area, the beam root is arranged with a horizontal displacement meter to measure the deformation of the beam, each stirrup in the node area is arranged with 5 strain gauges along the diagonal in an oblique manner, one side of the U-shaped steel concrete beam is arranged with 2 strain gauges along the longitudinal and transverse directions, 3 strain gauges are arranged longitudinally, and the upper and lower flanges are arranged with one strain gauge at the corresponding position of the strain gauge on the side surface.
Example 1: joint connecting device of steel-concrete combined column and beam
As shown in fig. 1 to 5, a steel-concrete composite column and beam joint connecting device 1 includes a first steel frame 2 and a steel plate 3 shaped like a Chinese character kou; the first steel skeleton 2 is a 'well' -shaped steel skeleton formed by connecting a node abdomen steel skeleton 4, a node upper flange steel skeleton 5 and a node lower flange steel skeleton 6, and comprises a cross part 7 and four branches 8;
the node abdomen steel skeleton 4 is a cross-shaped abdomen steel skeleton formed by crossing two first steel plates 9 vertical to an X axis and two second steel plates 10 vertical to a Y axis;
the node upper flange steel framework 5 is a well-shaped upper flange steel framework formed by crossing or staggering two first steel bars 11 vertical to the Z axis and two second steel bars 12 vertical to the Z axis;
the node lower flange steel skeleton 6 is a cross-shaped lower flange steel skeleton formed by intersecting or staggering a third steel plate 13 perpendicular to the Z axis and a fourth steel plate 14 perpendicular to the Z axis;
the node upper flange steel framework 5 is connected above the node abdomen steel framework 4, wherein two first steel bars 11 of the node upper flange steel framework 5 are respectively connected with two first steel plates 9 of the node abdomen steel framework 4, and two second steel bars 12 of the node upper flange steel framework 5 are respectively connected with two second steel plates 10 of the node abdomen steel framework 4;
the node lower flange steel skeleton 6 is connected below the node abdomen steel skeleton 4, wherein two first steel plates 9 of the node abdomen steel skeleton 4 are connected through a third steel plate 13 of the node lower flange steel skeleton 6, and two second steel plates 10 of the node abdomen steel skeleton 4 are connected through a fourth steel plate 14 of the node lower flange steel skeleton 4;
the number of the square steel plates 3 is four, and the four square steel plates 3 are respectively hooped on four branches 8 of the first steel framework 2.
Preferably, the two first steel bars 11 of the node upper flange steel framework 5 are vertically welded to the two first steel plates 9 of the node abdomen steel framework 4; two second steel bars 12 of the node upper flange steel framework 5 are vertically welded to two second steel plates 10 of the node abdomen steel framework 4; the third steel plate 13 of the node lower flange steel framework 6 is vertically welded to the two first steel plates 9 of the node abdomen steel framework 4; the fourth steel plate 14 of the joint lower flange steel framework 6 is vertically welded to the two second steel plates 10 of the joint abdomen steel framework 4.
Preferably, a plurality of first reserved holes 15 are formed in the part, located between the two second steel plates 10, of the first steel plate 9; a plurality of second reserved holes 16 are formed in the part, located between the two first steel plates 9, of the second steel plate 10; and a plurality of third reserved holes 17 are formed at the intersection or the staggered position of the third steel plate 13 and the fourth steel plate 14.
Preferably, a plurality of air vents 18 are formed at the intersection or the intersection of the first steel bar 11 and the second steel bar 12.
Preferably, the steel plate 3 is positioned at one end of the branch near the intersection 7.
Preferably, the steel plate 3 in a shape like a Chinese character kou includes an upper end plate 19 parallel to the Z axis, a lower end plate 20 parallel to the Z axis, and two first side plates 21 parallel to the Z axis, wherein the upper end plate 19 is located above the node upper flange steel framework 5, the lower end plate 20 is located below the node lower flange steel framework 6, and the two first side plates 21 are respectively located at two ends of the upper end plate 19 and the lower end plate 20 to connect the upper end plate 19 and the lower end plate 20.
Preferably, the upper end plate 19 of the steel plate 3 shaped like a Chinese character 'kou' is vertically welded to the first steel bar 11 or the second steel bar 12 of the flange steel framework 5 on the node; the lower end plate 20 of the square steel plate 3 is vertically welded to the third steel plate 13 or the fourth steel plate 14 of the node lower flange steel framework 6; the first side plate 21 of the square steel plate 3 is vertically welded to the first steel plate 9 or the second steel plate 10 of the node abdomen steel framework 4.
Preferably, the upper end plate 19 is parallel to the Z axis, and a plurality of fourth preformed holes 22 are formed in the upper end plate 19.
Preferably, the first side plate 21 is a corrugated plate.
Preferably, the node connecting device 1 comprises a plurality of upper flange connecting plates 23 and a plurality of lower flange connecting plates 24, wherein one end of the upper flange connecting plate 23 close to the intersection 7 is connected to one end of the first steel bar 11 or the second steel bar 12 far away from the intersection 7, and one end of the lower flange connecting plate 24 close to the intersection 7 is connected to one end of the third steel plate 13 or the fourth steel plate 14 far away from the intersection 7.
Preferably, the upper flange connecting plate 23 is located above the first steel bar 11 and/or the second steel bar 12.
Preferably, the lower flange connecting plate 24 is located above the third steel plate 13 and/or the fourth steel plate 14.
Preferably, the end of the upper flange connecting plate 23 close to the intersection 7 is connected to the end of the first steel bar 11 or the second steel bar 12 far away from the intersection 7 by a fastener; one end of the lower flange connecting plate 24 close to the intersection 7 is connected with one end of the third steel plate 13 or the fourth steel plate 14 far away from the intersection 7 through a fastener.
Preferably, there are eight upper flange connecting plates 23; the lower flange connecting plate 24 has four pieces.
Preferably, the node connecting device 1 comprises a plurality of beam connecting plates 25; the beam connecting plate 25 is parallel to the first steel plate 9 or the second steel plate 10, and one end of the beam connecting plate 25 close to the intersection 7 is connected with one end of the first steel plate 9 or the second steel plate 10 far away from the intersection 7.
Preferably, the beam connecting plates 25 have eight pieces, one end of four pieces of the eight beam connecting plates 25 close to the intersection 7 is connected with one end of the first steel plate 9 far away from the intersection 7 through a fastener, the beam connecting plates 25 connected with the first steel plate 9 are positioned between the two first steel plates 9, the other four pieces of the eight beam connecting plates 25 close to the intersection 7 are connected with one end of the second steel plate 10 far away from the intersection 7 through a fastener, and the beam connecting plates 25 connected with the second steel plate 10 are positioned between the two second steel plates 10.
Preferably, the beam connecting plate 25 is connected to the first steel plate 9 or the second steel plate 10 by a fastener.
Preferably, the node connecting device 1 comprises a plurality of column adapter plates 26; the column adapter plate 26 is located below the lower end plate 20 of the square steel plate 3 and connected with the lower end plate 20 of the square steel plate 3.
Preferably, there are four column adapters 26, and four column adapters 26 are respectively welded to the lower end plates 20 of the four "square" steel plates 3 in a vertical manner.
Preferably, four column adapter plates 26 are respectively welded vertically to the lower end plates 20 of the four "square" shaped steel plates 3.
Preferably, the fastener is a bolt.
Preferably, the bolt is a high-strength bolt.
Example 2: method for connecting steel-concrete combined column and beam
As shown in fig. 5-7, the steel-concrete composite column 27 includes a second steel skeleton 28; the second steel skeleton 28 is a rectangular closed steel skeleton formed by connecting four square steel tubes 29 parallel to the Z axis and four second side plates 30 parallel to the Z axis and in pairs;
the beam 31 includes a third steel skeleton 32; the third steel skeleton 32 is a U-shaped steel skeleton composed of a beam upper flange steel skeleton 33, a beam web part steel skeleton 34 and a beam lower flange steel skeleton 35, wherein the beam upper flange steel skeleton 33 comprises two angle steels 36 with opposite openings, the beam web part steel skeleton 34 comprises two third side plates 37 parallel to the Z axis and two beam sealing plates 44 parallel to the Z axis, the beam lower flange steel skeleton 35 comprises one U-shaped steel 38, the two angle steels 36 are respectively connected with two ends of the U-shaped steel 38 through the two third side plates 37, and three edges of the beam sealing plates 44 are respectively connected with the angle steels 36, the third side plates 37 and the U-shaped steel;
the method includes the steps that the node connecting device 1 in embodiment 1 is used, a square steel pipe 29 is connected with first side plates 21 of two adjacent square steel plates 3, a second side plate 30 is connected with lower end plates 20 of the square steel plates 3 through column adapter plates 26, angle steel 36 of a beam upper flange steel framework 33 is connected with a first steel bar 11 or a second steel bar 12 of a node upper flange steel framework 5 through an upper flange connecting plate 23, a beam sealing plate 44 is connected with a fourth side, which is not connected with the angle steel 36, a third side plate 37 and U-shaped steel, of a beam upper flange steel framework 4 through a beam connecting plate 25, and the U-shaped steel 38 of the beam lower flange steel framework 35 is connected with a third steel plate 13 or a fourth steel plate 14 of a node lower flange steel framework 6 through a lower flange connecting plate 24, so that a connected beam column steel framework 39 is obtained; and pouring concrete into the connected beam-column structural steel framework 39 to obtain the connected beam-column.
Preferably, there are four beams 31, and four beams 31 are respectively connected to the ends of the four branches 8 of the first steel framework 2 far away from the intersection 7.
Preferably, two ends of the third side plate 37 are respectively connected with the angle steel 36 and the U-shaped steel 38 through welding; three sides of the beam sealing plate 44 are respectively connected with the angle steel 36, the third side plate 37 and the U-shaped steel through welding.
Preferably, the square steel tube 29 is connected with the first side plate 21 of two adjacent square steel plates 3 by welding; the column adapter plate 26 is connected by welding to the second side plate 30; the angle steel 36 is connected with the upper flange connecting plate 23 through a fastener; the beam sealing plate 44 is connected with the beam connecting plate 25 by welding; the U-shaped steel 38 of the beam lower flange steel framework 35 is connected with the lower flange connecting plate 24 through a fastener.
Preferably, the angle 36 is located below the upper flange connecting plate 23.
Preferably, the U-section steel 38 is located below the lower flange connecting plate 24.
Preferably, the U-shaped steel 38 is formed by welding three fifth steel plates 40.
Preferably, the beam 31 comprises hogging moment rebars 41; the hogging moment reinforcing steel bar 41 simultaneously passes through the fourth reserved holes 22 on the two parallel upper end plates 19.
Preferably, there are two sets of the hogging moment reinforcing bars 41, and the two sets of the hogging moment reinforcing bars 41 are perpendicular to each other and the two sets of the hogging moment reinforcing bars 41 do not intersect.
Preferably, the two sets of hogging moment reinforcing bars 41 touch each other.
Preferably, there are four negative moment reinforcing bars 41 in each of the two sets.
Preferably, the beam upper flange steel skeleton 33 comprises a flange pulling plate 42; the flange pulling plate 42 is perpendicular to the Z axis and the flange pulling plate 42 is connected between the two angle steels 36.
Preferably, the flange pulling plate 42 is welded between the two angle steels.
Preferably, the beam upper flange steel skeleton 33 includes longitudinal ribs 43; the longitudinal rib 43 simultaneously penetrates through the first preformed holes 15 on the two first steel plates 9, or the longitudinal rib 43 simultaneously penetrates through the second preformed holes 16 on the two second steel plates 10.
Preferably, there are two sets of the longitudinal ribs 43, and the two sets of the longitudinal ribs 43 are perpendicular to each other and the two sets of the longitudinal ribs 43 do not intersect each other.
Preferably, the second side plate 30 is a corrugated plate.
Preferably, the third side panel 37 is a corrugated panel.
Preferably, the beam sealing plate 44 is a straight steel plate.
Preferably, the fastener is a bolt.
Preferably, the bolt is a high-strength bolt.
Example 3: beam column
The construction method of the beam column is shown in example 2, wherein:
steel-concrete composite column: the section size of the steel-concrete combined column is 500mm multiplied by 500 mm; the cross section of each of the four square steel pipes is 100mm multiplied by 100mm, and the thickness is 2.75 mm; the four second side plates are corrugated plates, and the corrugation size of each corrugated plate is 94mm multiplied by 20mm multiplied by 1.0 mm; the steel materials are Q345C steel materials;
beam: the size of the cross section of the beam is 525mm multiplied by 210 mm; the sizes of the four angle steels are L50mm multiplied by 50mm multiplied by 6 mm; HRB 500-grade steel bars with the diameter of 14mm are adopted for the four hogging moment steel bars and the four longitudinal bars; the two pieces of U-shaped steel are respectively formed by welding two fifth steel plates (side plates) with the cross section size of 50mm multiplied by 5mm and one fifth steel plate (bottom plate) with the cross section size of 210mm multiplied by 5 mm; the four third side plates are corrugated plates, and the corrugation size of each corrugated plate is 94mm multiplied by 20mm multiplied by 1.0 mm; the four beam sealing plates are straight steel plates, and the cross section of each straight steel plate is 60mm multiplied by 5 mm; the cross section of the eight flange pulling plates is 50mm multiplied by 5 mm; the steel materials are Q345C steel materials;
node connecting means: the dimensions of the two first bars and the two second bars are 50mm x 7 mm; the diameters of the air holes opened on the first steel strip and the second steel strip are 10 mm; the size of the eight upper flange connecting plates is 45mm multiplied by 7 mm; the cross section of the two first steel plates and the cross section of the two second steel plates at the intersection are 222mm multiplied by 222mm, the height is 514mm, the thickness is 6mm, the cross section at the branch is 514mm multiplied by 222mm, and the thickness is 6 mm; the first reserved hole and the second reserved hole formed in the first steel plate and the second steel plate have the cross section size of 180mm multiplied by 6mm and the height of 60 mm; the cross-sectional dimensions of the two third steel plates and the two fourth steel plates are 222mm multiplied by 10 mm; the cross section sizes of third reserved holes formed in the third steel plate and the fourth steel plate are 100mm multiplied by 10mm, and the length is 484 mm; the size of the four lower flange connecting plates is 198mm multiplied by 5 mm; the cross section sizes of the four upper end plates and the four lower end plates are 50mm multiplied by 8 mm; the diameter of a fourth reserved hole formed in the upper end plate is 16 mm; the cross-sectional dimension of the eight first side plates is 39mm multiplied by 8mm, the cross-sectional dimension of the column adapter plate is 40mm multiplied by 6mm, the cross-sectional dimension of the beam connecting plate is 514mm multiplied by 6mm, and the steel materials are Q345B steel materials;
the fasteners are all high-strength bolts of M20, and the concrete is all C40 common concrete.
Measuring the ultimate bearing capacity and the ultimate displacement according to the detection method of the ultimate bearing capacity and the detection method of the ultimate displacement, wherein the detection result is as follows: the ultimate horizontal bearing capacity of the column top was 142.7kN and the ultimate displacement was 82.6 mm.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A joint connecting device of a steel-concrete combined column and a beam is characterized in that the joint connecting device comprises a first steel skeleton and a square steel plate; the first steel skeleton is a 'well' -shaped steel skeleton formed by connecting a node belly steel skeleton, a node upper flange steel skeleton and a node lower flange steel skeleton, and comprises a cross part and four branches;
the node abdomen steel skeleton is a 'well' -shaped abdomen steel skeleton formed by crossing two first steel plates vertical to an X axis and two second steel plates vertical to a Y axis;
the node upper flange steel framework is a well-shaped upper flange steel framework formed by intersecting or staggering two first steel bars vertical to the Z axis and two second steel bars vertical to the Z axis;
the node lower flange steel skeleton is a cross-shaped lower flange steel skeleton formed by intersecting or staggering a third steel plate vertical to the Z axis and a fourth steel plate vertical to the Z axis;
the joint upper flange steel framework is connected above the joint abdomen steel framework, wherein two first steel bars of the joint upper flange steel framework are respectively connected with two first steel plates of the joint abdomen steel framework, and two second steel bars of the joint upper flange steel framework are respectively connected with two second steel plates of the joint abdomen steel framework;
the node lower flange steel skeleton is connected below the node abdomen steel skeleton, wherein two first steel plates of the node abdomen steel skeleton are connected through a third steel plate of the node lower flange steel skeleton, and two second steel plates of the node abdomen steel skeleton are connected through a fourth steel plate of the node lower flange steel skeleton;
the four square steel plates are respectively hooped on four branches of the first steel framework;
the node connecting device comprises a plurality of column adapter plates; the column adapter plate is positioned below the lower end plate of the square steel plate and is connected with the lower end plate of the square steel plate;
the steel-concrete combined column comprises a square steel pipe parallel to the Z axis; the square steel pipe is connected with the first side plate of two adjacent square steel plates, and the second side plate is connected with the lower end plate of the square steel plate through the column adapter plate.
2. The joint connecting device of a steel-concrete combined column and a beam as claimed in claim 1, wherein a portion of the first steel plate between two second steel plates is provided with a plurality of first reserved holes; a plurality of second reserved holes are formed in the part, located between the two first steel plates, of the second steel plate; and a plurality of third reserved holes are formed in the intersection or the staggered position of the third steel plate and the fourth steel plate.
3. The joint connecting device of a steel-concrete combined column and beam as claimed in claim 1 or 2, wherein the steel plate is a square plate comprising an upper end plate parallel to the Z-axis, a lower end plate parallel to the Z-axis, and two first side plates parallel to the Z-axis, wherein the upper end plate is located above the upper flange steel framework of the joint, the lower end plate is located below the lower flange steel framework of the joint, and the two first side plates are respectively located at two ends of the upper end plate and the lower end plate to connect the upper end plate and the lower end plate.
4. The joint connecting device of a steel-concrete combined column and a beam as claimed in claim 3, wherein the upper end plate is parallel to the Z axis and is provided with a plurality of fourth reserved holes.
5. The joint connecting device of a steel-concrete composite column and a beam as claimed in claim 1, wherein the joint connecting device comprises a plurality of upper flange connecting plates and a plurality of lower flange connecting plates, wherein one end of each upper flange connecting plate near the intersection is connected to one end of the first steel bar or the second steel bar far away from the intersection, and one end of each lower flange connecting plate near the intersection is connected to one end of the third steel plate or the fourth steel plate far away from the intersection.
6. A steel-concrete composite post and beam node connecting device as claimed in claim 1, wherein said node connecting device comprises a plurality of beam connecting plates; the beam connecting plate is parallel to the first steel plate or the second steel plate, and one end, close to the intersection, of the beam connecting plate is connected with one end, far away from the intersection, of the first steel plate or the second steel plate.
7. A method for connecting a steel-concrete combined column and a beam is characterized in that the steel-concrete combined column comprises a second steel skeleton; the second steel skeleton is a rectangular closed steel skeleton formed by connecting four square steel tubes parallel to the Z axis and four second side plates parallel to the Z axis in pairs;
the beam comprises a third steel skeleton; the third steel skeleton is a U-shaped steel skeleton consisting of a beam upper flange steel skeleton, a beam web part steel skeleton and a beam lower flange steel skeleton, wherein the beam upper flange steel skeleton comprises two pieces of angle steel with opposite openings, the beam web part steel skeleton comprises two third side plates parallel to a Z axis and two beam sealing plates parallel to the Z axis, the beam lower flange steel skeleton comprises one piece of U-shaped steel, the two pieces of angle steel are respectively connected with two ends of the U-shaped steel through the two third side plates, and three edges of the beam sealing plates are respectively connected with the angle steel, the third side plates and the U-shaped steel;
the method is to use the joint connecting device of any one of claims 1 to 6, connect the angle steel of the beam upper flange steel framework with the first steel bar or the second steel bar of the joint upper flange steel framework through the upper flange connecting plate, connect the beam sealing plate with the fourth side which is not connected with the angle steel, the third side plate and the U-shaped steel with the first steel plate or the second steel plate of the joint abdomen steel framework through the beam connecting plate, and connect the U-shaped steel of the beam lower flange steel framework with the third steel plate or the fourth steel plate of the joint lower flange steel framework through the lower flange connecting plate to obtain the connected beam column steel framework; and pouring concrete into the connected beam-column structural steel framework to obtain the connected beam-column.
8. Connecting the resulting beam-column structure using the method of claim 7.
9. Use of the node connecting device of any one of claims 1 to 6 or the method of claim 7 or the beam and column structure of claim 8 in construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010342279.7A CN111502034B (en) | 2020-04-27 | 2020-04-27 | Joint connecting device of steel-concrete combined column and beam and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010342279.7A CN111502034B (en) | 2020-04-27 | 2020-04-27 | Joint connecting device of steel-concrete combined column and beam and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111502034A CN111502034A (en) | 2020-08-07 |
| CN111502034B true CN111502034B (en) | 2021-02-19 |
Family
ID=71866365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010342279.7A Active CN111502034B (en) | 2020-04-27 | 2020-04-27 | Joint connecting device of steel-concrete combined column and beam and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111502034B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203878774U (en) * | 2014-05-16 | 2014-10-15 | 中北大学 | Shearing resisting steel pipe concrete beam column joint connecting structure |
| CN207944630U (en) * | 2018-01-05 | 2018-10-09 | 上海欧本钢结构有限公司 | A kind of detached column |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101406485B1 (en) * | 2012-09-20 | 2014-07-01 | 주식회사 포스코 | Coupling structure and method for beam to column connection |
| CN106836484A (en) * | 2017-02-17 | 2017-06-13 | 北京工业大学 | A kind of end plate assembled corrugated web occlusion beam column node connection device for recovering function |
| CN207944554U (en) * | 2017-06-19 | 2018-10-09 | 上海欧本钢结构有限公司 | A kind of concrete frame bean column node steel pipe bundle reinforcing sleeve |
| CN109898742A (en) * | 2019-04-09 | 2019-06-18 | 上海欧本钢结构有限公司 | A kind of steel ripple crust and steel flanged beam shaped steel combination beam and its construction method |
| CN110552464B (en) * | 2019-09-05 | 2021-11-05 | 上海欧本钢结构有限公司 | Column and manufacturing method thereof |
-
2020
- 2020-04-27 CN CN202010342279.7A patent/CN111502034B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203878774U (en) * | 2014-05-16 | 2014-10-15 | 中北大学 | Shearing resisting steel pipe concrete beam column joint connecting structure |
| CN207944630U (en) * | 2018-01-05 | 2018-10-09 | 上海欧本钢结构有限公司 | A kind of detached column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111502034A (en) | 2020-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020103234A1 (en) | Calculation method for flexural capacity and moment-rotation curve of concrete-filled steel tubular column-steel beam through bolt connecting joint | |
| Wang et al. | Experimental investigation of extended end plate joints to concrete-filled steel tubular columns | |
| CN111379334B (en) | Node connecting device of square steel tube concrete column and steel beam | |
| CN111379335B (en) | Node connecting device of reinforced concrete column and girder steel | |
| CN207633584U (en) | A kind of steel plate concrete combined shear wall that the double truss make-ups of reinforcing bar are put more energy into | |
| CN108487453B (en) | Connecting structure and connecting method for steel tube concrete column and reinforced concrete beam | |
| CN112031180B (en) | Beam column node connecting device and application thereof | |
| CN104499608A (en) | Method for designing and constructing prestressed section steel reinforced shear wall | |
| CN111502034B (en) | Joint connecting device of steel-concrete combined column and beam and application thereof | |
| CN110924538A (en) | Concrete column beam joint, steel bushing in joint area of concrete column beam joint and construction method | |
| CN210797872U (en) | Prefabricated reinforced concrete column | |
| CN101798856B (en) | Steel-concrete combined beam and construction method thereof | |
| Sun et al. | Seismic behavior and mechanism analysis of innovative precast shear wall involving vertical joints | |
| CN209163210U (en) | A kind of fashioned iron and the building structure including the fashioned iron | |
| CN203640257U (en) | Support of overhanging type scaffold | |
| CN212129502U (en) | Node connecting device of reinforced concrete column and girder steel | |
| CN108412120A (en) | A kind of shaped steel and the building structure including the shaped steel | |
| CN114411964A (en) | Prefabricated steel-concrete composite beam connected by adopting reamed hole bolts and construction method thereof | |
| CN210563380U (en) | Combined template at deformation joint of building construction | |
| CN212153744U (en) | Node connecting device of square steel tube concrete column and steel beam | |
| CN210439720U (en) | Reinforced structure for increasing cross section of concrete beam side | |
| CN112031161B (en) | Plug-in type beam column joint connecting device and application thereof | |
| CN211622001U (en) | Concrete column beam node joint structure and node area steel bushing thereof | |
| CN111254973A (en) | Method for repairing extruded deformation of cutting retaining wall | |
| CN216196014U (en) | Concrete-filled steel tube column with pull wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |