CN207228330U - A kind of prefabricated assembled frame combined using steel core concrete column and girder steel - Google Patents

Abstract

The utility model provides a prefabricated assembled frame adopting a combination of steel pipe concrete columns and steel beams, including a number of prefabricated steel pipe concrete columns and steel beams, and the connection between these columns is arranged at 1.0m to 1.5m above the floor. Left and right, the upper joint and the lower joint are connected by high-strength bolts and welds, and the columns and beams are connected by high-strength bolts and welds through the corbels welded to the steel tube concrete columns. The utility model adopts the combination of steel pipe concrete columns and steel beams, which can reduce the cross-section and weight of the components, facilitate transportation and installation, increase the ductility of the structure, and improve the anti-seismic performance; the connection position reasonably avoids the node area with complex stress, Node connections are simple and reliable; all connections are dry operations, improving construction conditions and reducing environmental pollution; adopting the connection technology of the utility model can greatly improve construction efficiency.

Description

A prefabricated frame using a combination of steel tube concrete columns and steel beams

technical field

The utility model relates to the technical field of construction engineering, in particular to a prefabricated assembled frame which adopts the combination of steel pipe concrete columns and steel beams.

Background technique

Vigorously developing prefabricated buildings has become a national strategy. Prefabricated concrete structures (PC structures) have developed rapidly. Frame structures are one of the most commonly used structural forms, and they are widely used in prefabricated structures. The existing PC frame structure is to prefabricate concrete columns and concrete beams in the factory, and assemble and connect them on site through the wet work method of integral post-casting, which has the following disadvantages: ①The component materials are mainly reinforced concrete, with low material strength and large cross-section , the weight is heavy, which brings a lot of inconvenience to prefabrication, transportation, hoisting and assembly; ② There are many steel bars in the on-site assembly, the connection structure is complicated, and the construction quality is difficult to guarantee; ③ Wet connection, in addition to cumbersome procedures, is also not conducive to reducing dust , reduce pollution; ④Using the integral post-casting assembly method, it is necessary to wait for the concrete poured on site to reach a certain strength before proceeding to the construction of the next process. The technical interval is long, which is not conducive to improving efficiency.

Concrete-filled steel pipes are structural members filled with concrete in steel pipes to jointly bear external loads. When frame columns are used, the advantages of concrete and steel can be fully utilized, the bearing capacity of members can be significantly improved, and the ductility and seismic performance of the structure can be increased. Steel has high strength, strong deformation ability, and isotropy. When the section is made into I-shaped or box-shaped, it is very suitable for beams and other components that mainly bear bending moments.

The combination of steel pipe concrete and steel beams can reduce the size of the section and reduce the weight of the components. It has obvious effects on increasing the actual area of the building, reducing the height of the storey, and reducing the cost of transportation and installation. At the same time, dry connections such as high-strength bolts and welded connections are used between components, which is easy to control quality and improve efficiency. Good comprehensive benefits can be obtained.

Utility model content

The utility model provides a prefabricated assembled frame which adopts the combination of steel pipe concrete columns and steel beams to solve the problems existing in the prior art.

The technical solution adopted for realizing the purpose of this utility model is as follows, a prefabricated assembled frame that adopts a combination of steel pipe concrete columns and steel beams, is characterized in that: it includes a combination of several prefabricated steel pipe concrete columns and prefabricated steel beams Assembled frame.

According to different locations, the concrete-filled steel pipe columns are divided into three types: the concrete-filled steel pipe columns at the bottom layer, the concrete-filled steel pipe columns at the middle layer, and the concrete-filled steel pipe columns at the top layer.

The bottom concrete-filled steel tube column includes steel tube I, concrete I, steel corbel I and upper joint I.

The steel corbel I includes an upper ring plate I, a lower ring plate I and four corbel webs I. The structure of the upper ring plate 1 and the lower ring plate 1 is the same, and there is a through hole set on the steel pipe 1 in its center, and there are four branches around it. After the upper ring plate I and the lower ring plate I are fixed on the steel pipe I, the respective four branches of the upper ring plate I and the lower ring plate I form four sets of flange plates around the steel pipe I, and each set of flange plates includes a An upper flange plate and a lower flange plate. The four corbel webs I are respectively matched with four sets of flange plates, and each corbel web I is welded vertically between an upper flange plate and a lower flange plate.

The upper joint I includes an upper joint cone I and an upper joint end plate I. The upper joint cone I is a hollow body of revolution with open upper and lower ends. The upper joint end plate I is an annular plate with a through hole in the center. Several U-shaped notches are evenly distributed around the outer circumference of the entire annular plate. The big end of the upper joint cone I is nested and fixed on the upper end of the steel pipe I. The upper joint end plate I is welded on the lower end of the upper joint cone I, and the central through hole of the upper joint end plate I is coaxial with the upper joint cone I. Concrete I is poured into the steel pipe I and the cone head I of the upper joint through the central through hole of the upper joint end plate I.

The middle concrete-filled steel pipe column includes steel pipe II, concrete II, steel corbel II, upper ring plate II, lower ring plate II, corbel web II, upper joint II, upper joint cone II, upper joint end plate II, Lower joint II, lower joint cone II and lower joint end plate II.

The steel corbel II includes an upper ring plate II, a lower ring plate II and four corbel webs II. The structure of the upper ring plate II and the lower ring plate II is the same, and there is a through hole set on the steel pipe II in the center, and there are four branches around it. After the upper ring plate II and the lower ring plate II are fixed on the steel pipe II, the four branches of the upper ring plate II and the lower ring plate II respectively form four sets of flange plates around the steel pipe II, and each set of flange plates includes a An upper flange plate and a lower flange plate. Four corbel webs II are matched with four sets of flange plates respectively, and each corbel web II is welded vertically between an upper flange plate and a lower flange plate.

The upper joint II includes an upper joint cone II and an upper joint end plate II. The upper joint cone II is a hollow rotating body with open upper and lower ends. The upper joint end plate II is an annular plate with a through hole in the center. Several U-shaped notches are evenly distributed around the outer circumference of the entire annular plate. The big end of the upper joint cone II is nested and fixed on the upper end of the steel pipe II. The upper joint end plate II is welded to the lower end of the upper joint cone II, and the central through hole of the upper joint end plate II is coaxial with the upper joint cone II.

The lower joint II includes a lower joint cone II and a lower joint end plate II. The lower joint cone II is a hollow rotating body with open upper and lower ends. The lower joint end plate II is an annular plate with a through hole in the center. Several U-shaped notches are evenly distributed around the outer circumference of the entire annular plate. The big end of the lower joint cone II is nested and fixed on the lower end of the steel pipe II. The lower joint end plate II is welded to the lower end of the lower joint cone II, and the central through hole of the lower joint end plate II is coaxial with the lower joint cone II.

Concrete II is poured into the steel pipe II, the lower joint cone II and the upper joint cone II through the central through hole of the upper joint end plate II or the lower joint end plate II.

The top concrete-filled steel pipe column includes steel pipe III, concrete III, steel corbel III, upper cover plate, lower ring plate III, corbel web III, lower joint III, lower joint cone III and lower joint end plate III.

The steel corbel III includes an upper cover plate, a lower ring plate III and four corbel web plates III. There are four branches around the upper cover plate and the lower ring plate III, and the contours around the two are the same, except that the center of the lower ring plate III has a through hole set on the steel pipe III. The lower ring plate III is fixed on the outer wall of the steel pipe III, and the upper cover plate covers and is fixed on the upper end of the steel pipe III. The respective four branches of the upper cover plate and the lower ring plate III form four sets of flange plates around the steel tube III, and each set of flange plates includes an upper flange plate and a lower flange plate. The four corbel webs III are matched with four sets of flange plates respectively, and each corbel web III is welded vertically between an upper flange plate and a lower flange plate.

The lower joint III includes a lower joint cone III and a lower joint end plate III. The lower joint cone III is a hollow rotating body with open upper and lower ends. The lower joint end plate III is an annular plate with a through hole in the center. Several U-shaped notches are evenly distributed around the outer circumference of the entire annular plate. The big end of the lower joint cone III is nested and fixed on the lower end of the steel pipe II. The lower joint end plate III is welded to the lower end of the lower joint cone III, and the central through hole of the lower joint end plate III is coaxial with the lower joint cone III.

Concrete III is poured into the steel pipe III and the lower joint cone III through the central through hole of the lower joint cone III.

Each steel beam includes upper and lower two horizontal steel beam flanges, and a steel beam web welded vertically between the two steel beam flanges. Both ends of the web of the steel beam have connection holes for bolts to pass through.

When assembling:

The lower end of the concrete-filled steel tube column in the middle layer and the upper end of the concrete-filled steel tube column in the bottom layer form an inter-column node. In this inter-column joint, the upper joint end plate I is in contact with the lower joint end plate II, and the U-shaped gaps of the two are aligned, and several high-strength bolts I are used to connect the U-shaped gaps of the two. The lower end of the concrete filled steel tube column at the ground floor is fixed on the foundation.

Inter-column nodes are formed between the lower and upper ends of the upper and lower mid-level concrete-filled steel tube columns. In this inter-column joint, the lower joint end plate II of the upper middle concrete-filled steel tube column is in contact with the upper joint end plate II of the lower middle-level concrete-filled steel tube column. The U-shaped notch of the latter.

Inter-column nodes are formed between the lower end of the concrete-filled steel pipe column on the top floor and the upper end of the concrete-filled steel pipe column on the middle floor. In the inter-column joint, the upper lower joint end plate III is in contact with the lower upper joint cone II, and the U-shaped gaps of the two are aligned, and several high-strength bolts I are used to connect the U-shaped gaps of the two.

The steel corbel I of the steel tube concrete column at the bottom is connected with the steel cross beam, and forms the connection node between the beam and the column. The connection mode of the connection node between the beam and the column is: the steel beam is hoisted to one side of the steel corbel I, and a spliced cover plate is respectively placed on both sides of the steel beam web and the corbel web I. Each spliced cover plate has two rows of through holes for bolts to pass through. Several high-strength bolts are used to connect the web of the steel beam and one side of the spliced cover, and several high-strength bolts are also used to connect the web of the steel corbel and the other side of the spliced cover, so that the steel corbel I is connected to the steel beam. The upper and lower two horizontal steel beam flanges are welded to the upper ring plate I and the lower ring plate I respectively.

The steel corbel II of the mid-story CFST column is connected to the steel beam to form a connection node between the beam and the column. The connection method of the connection between the beam and the column is: the steel beam is hoisted to one side of the steel corbel II, and a spliced cover plate is respectively placed on both sides of the steel beam web and the corbel web II. Each spliced cover plate has two rows of through holes for bolts to pass through. A number of high-strength bolts are used to connect the web of the steel beam and one side of the spliced cover plate, and several high-strength bolts are also used to connect the web of the steel corbel and the other side of the spliced cover plate, that is, the steel corbel II is connected to the steel beam. Weld the upper and lower two horizontal steel beam flanges to the upper ring plate II and the lower ring plate II respectively.

The steel corbel III of the concrete-filled steel tube column on the top floor is connected with the steel beam to form a connection node between the beam and the column. The connection method of the connection between the beam and the column is as follows: the steel beam is hoisted to one side of the steel corbel III, and a spliced cover plate is respectively placed on both sides of the steel beam web and the corbel web III. Each spliced cover plate has two rows of through holes for bolts to pass through. A number of high-strength bolts are used to connect the web of the steel beam and one side of the spliced cover plate, and several high-strength bolts are also used to connect the web of the steel corbel and the other side of the spliced cover plate, that is, the steel corbel III is connected to the steel beam. Weld the upper and lower two horizontal steel beam flanges to the upper cover plate and the lower ring plate III respectively.

Further, several assembled steel pipes are also included. The assembled steel pipe is composed of two half steel pipes. These two semi-steel tubes enclose the inter-column connection nodes from both sides. The gap between the two half steel pipes is connected by a vertical weld to form a complete assembled steel pipe. The gap at the upper end of the assembled steel pipe is connected by an upper transverse weld, and the gap at the lower end is connected by a lower transverse weld.

Further, the steel beam flange is welded to the ring plate through butt welds.

Further, the connecting nodes between the columns are located at a height of 1.0-1.5 meters above the floor.

Furthermore, the number of branches of the steel corbel I, steel corbel II and steel corbel III is different depending on the location of the CFST column. There are two branches in the corner column, three branches in the side column, and three branches in the center column. for four.

The beneficial effects of the utility model are:

1. Using concrete-filled steel tube columns and steel beams to reduce the cross-sectional size of components, reduce component weight, and reduce transportation and hoisting costs.

2. The column-to-column assembly is located near the middle of the floor where the internal force is small, which is conducive to reducing the requirements for assembly nodes, simplifying the structure of assembly nodes, and reducing the difficulty of assembly.

3. On-site assembly adopts high-strength bolts and welded connections, which are convenient for inspection, easy to control quality, no need for technical intervals, increased construction speed, dry assembly, and reduced dust and pollution.

4. The ductility of components and joints is improved, so that the assembled frame of the present invention can be applied to high-intensity earthquake-resistant areas.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the fabricated frame.

Figure 2 is a schematic diagram of the upper joint.

Figure 3 is a schematic diagram of the lower joint.

Figure 4 is a schematic diagram of the concrete filled steel tube column at the bottom.

Figure 5 is a schematic diagram of the concrete filled steel tube column in the middle layer.

Figure 6 is a schematic diagram of the top-floor concrete-filled steel tube column.

Figure 7 is a schematic diagram of the assembly of a steel tube concrete column and a steel beam.

Figure 8 is a schematic diagram of the assembly of the upper and lower concrete filled steel pipe columns.

In the figure: bottom concrete-filled steel pipe column 1, steel pipe I101, concrete I102, steel corbel I103, upper ring plate I1031, lower ring plate I1032, corbel web I1033, upper joint I104, upper joint cone I1041, upper joint end plate I1042,

Intermediate concrete-filled steel pipe column 2, steel pipe II201, concrete II202, steel corbel II203, upper ring plate II2031, lower ring plate II2032, corbel web II2033, upper joint II204, upper joint cone II2041, upper joint end plate II2042, lower Joint II205, lower joint cone II2051, lower joint end plate II2052,

Concrete steel pipe column 3 on the top floor, steel pipe III301, concrete III302, steel corbel III303, upper cover plate 3031, lower ring plate III3032, corbel web III3033, lower joint III304, lower joint cone III3041, lower joint end plate III3042,

Steel beam 4, steel beam flange 401, steel beam web 402,

Splicing cover plate 10, high-strength bolt II11, backing plate 12, weld seam 13

High-strength bolts I14, assembled steel pipes 15, upper transverse welds 16, lower transverse welds 17, and vertical welds 18.

Detailed ways

The utility model will be further described below in conjunction with the embodiments, but it should not be understood that the scope of the above subject matter of the utility model is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present utility model, various replacements and changes made according to common technical knowledge and conventional means in the art shall be included in the protection scope of the present utility model.

A prefabricated assembly frame using a combination of steel pipe concrete columns and steel beams, characterized in that it includes an assembly frame formed by combining a number of prefabricated steel pipe concrete columns and prefabricated steel beams 4.

According to different locations, the concrete-filled steel pipe columns are divided into three types: bottom-level concrete-filled steel-tube columns 1 , middle-level concrete-filled steel-tube columns 2 , and top-level concrete-filled steel tube columns 3 .

The bottom concrete-filled steel tube column 1 includes steel tube I101, concrete I102, steel corbel I103 and upper joint I104.

The steel corbel I103 includes an upper ring plate I1031, a lower ring plate I1032 and four corbel webs I1033. The structure of the upper ring plate I1031 and the lower ring plate I1032 is the same, and there is a through hole set on the steel pipe I101 in the center, and there are four branches around it (further, the number of branches of the steel corbel I103 depends on the steel pipe concrete The position of the column is different, the corner column has two branches, the side column has three branches, and the center column has four branches). After the upper ring plate I1031 and the lower ring plate I1032 are fixed on the steel pipe I101, the respective four branches of the upper ring plate I1031 and the lower ring plate I1032 form four sets of flange plates around the steel pipe I101, and each set of flange plates includes a An upper flange plate and a lower flange plate. Four corbel webs I1033 are matched with four sets of flange plates respectively, and each corbel web I1033 is welded vertically between an upper flange plate and a lower flange plate.

The upper joint I104 includes an upper joint cone I1041 and an upper joint end plate I1042. The upper joint taper head I1041 is a hollow rotating body (hollow circular platform) with open upper and lower ends. The upper joint end plate I1042 is an annular plate with a through hole in the center. Several U-shaped notches are evenly distributed around the outer circumference of the entire annular plate. The big end of the upper joint taper head I1041 is nested and fixed on the upper end of the steel pipe I101. The upper joint end plate I1042 is welded to the lower end of the upper joint cone I1041, and the central through hole of the upper joint end plate I1042 is coaxial with the upper joint cone I1041. Concrete I102 is poured into the steel pipe I101 and the upper joint cone I1041 through the central through hole of the upper joint end plate I1042.

The middle concrete-filled steel pipe column 2 includes steel pipe II201, concrete II202, steel corbel II203, upper ring plate II2031, lower ring plate II2032, corbel web II2033, upper joint II204, upper joint cone II2041, upper joint end plate II2042 , Lower joint II205, lower joint cone II2051 and lower joint end plate II2052.

The steel corbel II203 includes an upper ring plate II2031, a lower ring plate II2032 and four corbel webs II2033. The structure of the upper ring plate II2031 and the lower ring plate II2032 is the same, and there is a through hole set on the steel pipe II201 in the center, and there are four branches around it (further, the number of branches of the steel corbel II203 depends on the number of steel pipes. Depending on the location of the concrete column, the corner column has two branches, the side column has three branches, and the center column has four branches). After the upper ring plate II2031 and the lower ring plate II2032 are fixed on the steel pipe II201, the four branches of the upper ring plate II2031 and the lower ring plate II2032 respectively form four sets of flange plates around the steel pipe II201, and each set of flange plates includes a An upper flange plate and a lower flange plate. Four corbel webs II2033 are matched with four sets of flange plates respectively, and each corbel web II2033 is welded vertically between an upper flange plate and a lower flange plate.

The upper joint II204 includes an upper joint cone II2041 and an upper joint end plate II2042. The upper joint cone II2041 is a hollow rotary body (hollow circular platform) with open upper and lower ends. The upper joint end plate II2042 is an annular plate with a through hole in the center. Several U-shaped notches are evenly distributed around the outer circumference of the entire annular plate. The big end of the upper joint taper head II2041 is nested and fixed on the upper end of the steel pipe II201. The upper joint end plate II2042 is welded to the lower end of the upper joint cone II2041, and the central through hole of the upper joint end plate II2042 is coaxial with the upper joint cone II2041.

The lower joint II205 comprises a lower joint cone II2051 and a lower joint end plate II2052. The lower joint cone II2051 is a hollow rotary body (hollow circular platform) with open upper and lower ends. The lower joint end plate II2052 is an annular plate with a through hole in the center. Several U-shaped notches are evenly distributed around the outer circumference of the entire annular plate. The big end of the lower joint cone II2051 is nested and fixed on the lower end of the steel pipe II201. The lower joint end plate II2052 is welded to the lower end of the lower joint cone II2051, and the central through hole of the lower joint end plate II2052 is coaxial with the lower joint cone II2051.

Concrete II202 is poured into the steel pipe II201, the lower joint cone II2051 and the upper joint cone II2041 through the central through hole of the upper joint end plate II2042 or the lower joint end plate II2052.

The top concrete-filled steel pipe column 3 includes steel pipe III301, concrete III302, steel corbel III303, upper cover plate 3031, lower ring plate III3032, corbel web plate III3033, lower joint III304, lower joint cone III3041 and lower joint end plate III3042 .

The steel corbel III303 includes an upper cover plate 3031, a lower ring plate III3032 and four corbel webs III3033. There are four branches around the upper cover plate 3031 and the lower ring plate III3032 (further, the number of branches of the steel corbel III303 is different because of the position of the steel pipe concrete column, the branch of the corner column is two, and the branch of the side column three, and four branches of the central column). The contour shapes around the two are the same, except that the center of the lower ring plate III3032 has a through hole set on the steel pipe III301. The lower ring plate III3032 is fixed on the outer wall of the steel pipe III301, and the upper cover plate 3031 covers and is fixed on the upper end of the steel pipe III301. The four branches of the upper cover plate 3031 and the lower ring plate III3032 respectively form four sets of flange plates around the steel pipe III301, and each set of flange plates includes an upper flange plate and a lower flange plate. Four corbel webs III3033 are matched with four sets of flange plates respectively, and each corbel web III3033 is welded vertically between an upper flange plate and a lower flange plate.

The lower joint III304 comprises a lower joint cone III3041 and a lower joint end plate III3042. The lower joint taper head III3041 is a hollow rotating body (hollow circular truncated body) whose upper and lower ends are open. The lower joint end plate III3042 is an annular plate with a through hole in the center. Several U-shaped notches are evenly distributed around the outer circumference of the entire annular plate. The big end of the lower joint cone III3041 is nested and fixed on the lower end of the steel pipe II201. The lower joint end plate III3042 is welded to the lower end of the lower joint cone III3041, and the central through hole of the lower joint end plate III3042 is coaxial with the lower joint cone III3041.

Concrete III302 is poured into the steel pipe III301 and the lower joint cone III3041 through the central through hole of the lower joint cone III3041.

Each steel beam 4 includes upper and lower two horizontal steel beam flanges 401 , and a steel beam web 402 vertically welded between the two steel beam flanges 401 . Both ends of the steel beam web 402 have connection holes for bolts to pass through.

During assembly, several inter-column nodes (label I) and beam and column inter-nodes (label II) are formed as shown in Figure 1:

The lower end of the middle concrete-filled steel tube column 2 and the upper end of the bottom concrete-filled steel tube column 1 form an inter-column node. In this inter-column joint, the upper joint end plate I1042 is in contact with the lower joint end plate II2052, and the U-shaped gaps of the two are aligned, and several high-strength bolts I14 are used to connect the U-shaped gaps of the two. The lower end of the concrete filled steel tube column 1 at the bottom is fixed on the foundation.

An inter-column node is formed between the lower and upper ends of the upper and lower middle concrete-filled steel tube columns 2 . In this inter-column joint, the lower joint end plate II2052 of the upper middle concrete-filled steel pipe column 2 is in contact with the upper joint end plate II2042 of the lower middle concrete-filled steel pipe column 2, and the U-shaped gaps of the two are aligned, and a number of high-strength bolts I14 are used. A U-shaped notch connecting the two.

Inter-column nodes are formed between the lower end of the top concrete-filled steel tube column 3 and the upper end of the middle-level concrete-filled steel tube column 2 (at the upper and lower positions). In the inter-column joint, the upper lower joint end plate III3042 is in contact with the lower upper joint cone II2041, and the U-shaped gaps of the two are aligned, and several high-strength bolts I14 are used to connect the U-shaped gaps of the two.

Preferably, several assembled steel pipes 15 are also included. The assembly steel pipe 15 is composed of two half steel pipes. These two semi-steel tubes enclose the inter-column connection nodes from both sides. The cut of the upper end of the semi-steel pipe is perpendicular to the length direction, the bevel is made at the lower end, and the bevel is made on both sides. The gap between the two half steel pipes is connected by a vertical weld 18 to form a complete assembled steel pipe 15 . The slit at the upper end of the assembled steel pipe 15 is connected by an upper transverse weld 16 , and the slit at the lower end is connected by a lower transverse weld 17 . In an embodiment, the connection node between columns is located at a height of 1.0-1.5 meters above the floor.

The steel corbel I103 of the concrete filled steel tube column 1 at the bottom is connected with the steel beam 4 to form a connection node between the beam and the column. The connection mode of the connection node between the beam and the column is: the steel beam 4 is hoisted to one side of the steel corbel I103, and a splicing cover plate 10 is respectively placed on both sides of the steel beam web 402 and the corbel web I1033. Each spliced cover plate 10 has two rows of through holes for bolts to pass through. Several high-strength bolts 11 are used to connect one side of the steel beam web 402 and the spliced cover plate 10, and several high-strength bolts 11 are also used to connect the other side of the steel corbel web 502 and the spliced cover plate 10, so that the steel corbel 1103 and the spliced cover plate 10 are connected. Steel beams 4 connections. The upper and lower two horizontal steel beam flanges 401 are respectively welded to the upper ring plate I1031 and the lower ring plate I1032.

The steel corbel II203 of the middle concrete-filled steel tube column 2 is connected with the steel beam 4 to form a connection node between the beam and the column. The connection mode of the connection node between the beam and the column is: the steel beam 4 is hoisted to one side of the steel corbel II203, and a splicing cover plate 10 is respectively placed on both sides of the steel beam web 402 and the corbel web II2033. Each spliced cover plate 10 has two rows of through holes for bolts to pass through. Several high-strength bolts 11 are used to connect one side of the steel beam web 402 and the spliced cover plate 10, and several high-strength bolts 11 are also used to connect the other side of the steel corbel web 502 and the spliced cover plate 10, so that the steel corbel II203 and the spliced cover plate 10 are connected. Steel beams 4 connections. The upper and lower two horizontal steel beam flanges 401 are respectively welded to the upper ring plate II2031 and the lower ring plate II2032.

The steel corbel III303 of the concrete-filled steel tube column 3 on the top floor is connected with the steel beam 4 to form a connection node between the beam and the column. The connection mode of the connection node between the beam and the column is: the steel beam 4 is hoisted to one side of the steel corbel III303, and a splicing cover plate 10 is respectively placed on both sides of the steel beam web 402 and the corbel web III3033. Each spliced cover plate 10 has two rows of through holes for bolts to pass through. Several high-strength bolts 11 are used to connect one side of the steel beam web 402 and the spliced cover plate 10, and several high-strength bolts 11 are also used to connect the other side of the steel corbel web 502 and the spliced cover plate 10, so that the steel corbel III303 and the spliced cover plate 10 are connected. Steel beams 4 connections. The upper and lower two horizontal steel beam flanges 401 are welded to the upper cover plate 3031 and the lower ring plate III3032 respectively.

Preferably, the steel beam flange 401 is connected to the ring plate (including the upper ring plate I1031, the lower ring plate I1032, the upper ring plate II2031, the lower ring plate II2032, the upper cover plate 3031, and the lower ring plate III3032) through the butt weld 13 solder connection.

Claims (5)

1. a kind of prefabricated frame that adopts steel pipe concrete column and steel beam combination is characterized in that: comprise the assembled frame that some prefabricated steel tube concrete columns and prefabricated steel beam (4) are combined to form; According to the different positions, the concrete-filled steel pipe columns are divided into three types: the bottom concrete-filled steel pipe column (1), the middle layer concrete-filled steel pipe column (2) and the top floor concrete-filled steel pipe column (3); The bottom concrete-filled steel tube column (1) includes steel tube I (101), concrete I (102), steel corbel I (103) and upper joint I (104); The steel corbel I (103) comprises an upper ring plate I (1031), a lower ring plate I (1032) and four corbel webs I (1033); the upper ring plate I (1031) and the lower ring plate The structure of I (1032) is the same, there is a through hole set on the steel pipe I (101) in the center, and there are four branches around it; the upper ring plate I (1031) and the lower ring plate I (1032) are fixed After the steel pipe I (101) is installed, the four branches of the upper ring plate I (1031) and the lower ring plate I (1032) respectively form four groups of flange plates around the steel pipe I (101), and each group of flange plates includes One upper flange plate and one lower flange plate; four corbel webs I (1033) are matched with four sets of flange plates respectively, and each corbel web I (1033) is welded vertically to an upper flange between the plate and a lower flange plate; The upper joint I (104) includes an upper joint cone I (1041) and an upper joint end plate I (1042); the upper joint cone I (1041) is a hollow rotating body with open upper and lower ends; The upper joint end plate I (1042) is an annular plate with a through hole in the center; several U-shaped gaps are evenly distributed around the outer circle of the entire annular plate; the large end of the upper joint cone I (1041) is nested and be fixed on the upper end of the steel pipe I (101); the upper joint end plate I (1042) is welded on the lower end of the upper joint cone I (1041), and the central through hole of the upper joint end plate I (1042) is connected to the upper joint cone I (1041) is coaxial; pour concrete I (102) inside the steel pipe I (101) and the upper joint cone I (1041) through the central through hole of the upper joint end plate I (1042); The middle concrete-filled steel pipe column (2) includes steel pipe II (201), concrete II (202), steel corbel II (203), upper ring plate II (2031), lower ring plate II (2032), corbel web II (2033), upper joint II (204), upper joint cone II (2041), upper joint end plate II (2042), lower joint II (205), lower joint cone II (2051) and lower joint end plate II(2052); The steel corbel II (203) includes an upper ring plate II (2031), a lower ring plate II (2032) and four corbel webs II (2033); the upper ring plate II (2031) and the lower ring plate II (2032) has the same structure, and there is a through hole set on the steel pipe II (201) in the center, and there are four branches around it; the upper ring plate II (2031) and the lower ring plate II (2032) are fixed After the steel pipe II (201) is installed, the four branches of the upper ring plate II (2031) and the lower ring plate II (2032) form four sets of flange plates around the steel pipe II (201), and each set of flange plates includes One upper flange plate and one lower flange plate; four corbel webs II (2033) are matched with four sets of flange plates respectively, and each corbel web II (2033) is welded vertically to one upper flange between the plate and a lower flange plate; The upper joint II (204) includes an upper joint cone II (2041) and an upper joint end plate II (2042); the upper joint cone II (2041) is a hollow rotating body with open upper and lower ends; the The above-mentioned upper joint end plate II (2042) is an annular plate with a through hole in the center; several U-shaped notches are evenly distributed around the outer circle of the entire annular plate; the large end of the upper joint cone II (2041) is nested and be fixed on the upper end of the steel pipe II (201); the upper joint end plate II (2042) is welded on the lower end of the upper joint cone II (2041), and the central through hole of the upper joint end plate II (2042) is connected with the upper joint cone II (2041) coaxial; The lower joint II (205) includes a lower joint cone II (2051) and a lower joint end plate II (2052); the lower joint cone II (2051) is a hollow rotating body with open upper and lower ends; the The lower joint end plate II (2052) is an annular plate with a through hole in the center; several U-shaped notches are evenly distributed around the outer circle of the entire annular plate; the large end of the lower joint cone II (2051) is nested and fixed on the lower end of the steel pipe II (201); the lower joint end plate II (2052) is welded to the lower end of the lower joint cone II (2051), and the central through hole of the lower joint end plate II (2052) is connected to the lower joint cone II (2051) coaxial; Through the central through hole of the upper joint end plate II (2042) or the lower joint end plate II (2052), pour concrete II into the steel pipe II (201), the lower joint cone II (2051) and the upper joint cone II (2041) (202); The top concrete-filled steel pipe column (3) includes steel pipe III (301), concrete III (302), steel corbel III (303), upper cover plate (3031), lower ring plate III (3032), corbel web III (3033), lower joint III (304), lower joint cone III (3041) and lower joint end plate III (3042); The steel corbel III (303) comprises an upper cover plate (3031), a lower ring plate III (3032) and four corbel webs III (3033); the upper cover plate (3031) and the lower ring plate III ( 3032) has four branches around, and the contours around the two are the same, except that the center of the lower ring plate III (3032) has a through hole set on the steel pipe III (301); the lower ring plate III (3032) is fixed on the steel pipe On the outer wall of III (301), the upper cover plate (3031) covers and is fixed on the upper end of the steel pipe III (301); the four branches of the upper cover plate (3031) and the lower ring plate III (3032) respectively form the steel pipe III (301) four sets of flange plates around, each set of flange plates includes an upper flange plate and a lower flange plate; four corbel webs III (3033) are respectively matched with four sets of flange plates, each A corbel web III (3033) is welded vertically between an upper flange plate and a lower flange plate; The lower joint III (304) includes a lower joint cone III (3041) and a lower joint end plate III (3042); the lower joint cone III (3041) is a hollow rotating body with open upper and lower ends; the The lower joint end plate III (3042) is an annular plate with a through hole in the center; several U-shaped notches are evenly distributed around the outer circle of the entire annular plate; the large end of the lower joint cone III (3041) is nested and fixed on the lower end of the steel pipe II (201); the lower joint end plate III (3042) is welded to the lower end of the lower joint cone III (3041), and the central through hole of the lower joint end plate III (3042) is connected to the lower joint cone III (3041) coaxial; Concrete III (302) is poured into the steel pipe III (301) and the lower joint cone III (3041) through the central through hole of the lower joint cone III (3041); Each steel beam (4) comprises upper and lower two horizontal steel beam flanges (401), and a steel beam web (402) welded vertically between the two steel beam flanges (401); Both ends of the steel beam web (402) have connection holes for bolts to pass through. 2. A kind of prefabricated assembled frame adopting steel pipe concrete column and steel beam combination according to claim 1, is characterized in that: also comprises some assembled steel pipes (15); Described assembled steel pipes (15) are made of two half The steel pipes are combined; the two half steel pipes surround the connection nodes between the columns from both sides; the gap between the two half steel pipes is connected by a vertical weld (18), and then a complete assembled steel pipe (15) is formed; the assembled steel pipe ( 15) The gap at the upper end is connected by an upper transverse weld (16), and the gap at the lower end is connected by a lower transverse weld (17). 3. A prefabricated assembly frame using a combination of steel pipe concrete columns and steel beams according to claim 1, characterized in that: the steel beam flange (401) is welded through a butt weld (13) connected to the ring plate connect. 4. A prefabricated frame using a combination of steel pipe concrete columns and steel beams according to claim 1, characterized in that: the connecting nodes between columns are located at a height of 1.0-1.5 meters above the floor. 5. A kind of prefabricated frame that adopts steel pipe concrete column and steel beam combination according to claim 1, is characterized in that: steel corbel I (103), steel corbel II (203) and steel corbel III ( The number of branches of 303) is different due to the location of the concrete filled steel pipe column. There are two branches in the corner column, three branches in the side column, and four branches in the center column.