CN217557877U - A joint structure of steel-concrete combined beam-column connection - Google Patents

Abstract

The utility model provides a node structure for connecting a steel-concrete combined beam column, which comprises a steel-concrete combined beam, a steel-concrete combined column, a connecting steel plate and a bolt; the steel-concrete combined beam comprises a reinforced concrete beam and a beam connecting piece which are integrally cast, wherein the beam connecting piece is embedded in the end part of the reinforced concrete beam; the steel-concrete combined column comprises a reinforced concrete column and a column connecting piece which are integrally cast, wherein the column connecting piece is pre-embedded at a node of the reinforced concrete column; the steel-concrete combined beam is connected with the steel-concrete combined column through the connecting steel plate, and the connecting steel plate is fixed on the beam connecting piece and the column connecting piece through bolts respectively. The utility model has the advantages of the durability is strong, the mechanism of biography power is clear and definite, the steel construction ductility is good, the connected mode is simple and convenient quick, efficient, can replace traditional connected mode in actual engineering.

Description

A joint structure of steel-concrete combined beam-column connection

technical field

The utility model relates to the technical field of civil engineering building structures, in particular to a steel-concrete joint beam-column joint structure.

Background technique

Under the active advocacy of the country to vigorously develop prefabricated buildings, prefabricated concrete structures have received extensive attention, and prefabricated concrete frame structures are an important structural form. The existing post-cast integral prefabricated concrete frame structure is generally poured concrete in the node area. There are generally key technical problems such as crowding of the node steel bars, difficulty in installation and construction, and difficulty in ensuring the quality of the nodes, and the tensile capacity of ordinary concrete is relatively weak. The node area is prone to serious damage under the action of seismic load. Therefore, it is necessary to design a new type of steel-concrete joint beam-column joint structure.

Utility model content

Therefore, the purpose of the present invention is to solve the key technical problems in the prior art, such as difficulty in installation and construction of beam-column joints, and difficulty in ensuring the quality of joints, thereby providing a new type of joint structure of steel-concrete combined beam-column connection.

In order to achieve the above purpose, a joint structure of steel-concrete combined beam-column connection of the present invention includes steel-concrete composite beams, steel-concrete composite columns, connecting steel plates and bolts; A formed reinforced concrete beam and a beam connector, the beam connector is pre-buried at the end of the reinforced concrete beam; the steel-concrete composite column includes an integrally cast reinforced concrete column and a column connector, the column The connector is pre-buried at the node of the reinforced concrete column; the steel-concrete composite beam and the steel-concrete composite column are connected by the connecting steel plate, and the connecting steel plate is respectively fixed to the beam connector and the column by bolts connector.

The beam connector includes a first I-beam and a left web, the first I-beam includes two left wing plates arranged in parallel and a beam limiting steel plate connected between the two left wing plates, the left web The plate is located on one side of the beam limit steel plate and is connected to the beam limit steel plate and the left wing plate respectively; the end of the reinforced concrete beam is clamped between the two left wing plates and abuts against the beam limit steel plate. The side away from the left web.

Pre-embedded steel nails are arranged on the beam connector and in the area in contact with the reinforced concrete beam.

The pre-embedded steel nails are welded on the beam connector.

Eight said pre-embedded steel nails are welded on the inner side of each said left wing plate, and four said pre-embedded steel nails are welded on the beam limit steel plate.

The radius of the cap portion of the embedded steel nail is 10 mm and the height is 6 mm; the radius of the rod portion of the embedded steel nail is 5 mm and the height is 35 mm.

The column connector includes a column limit steel plate, a second I-beam and a plurality of pre-embedded steel bars. The second I-beam and the embedded steel bars are respectively arranged on both sides of the column limit steel plate. The word steel includes two right wing plates and a right web plate arranged in parallel, one end of the right wing plate and the right web plate is connected to one side of the column limit steel plate, and the other side of the column limit steel plate is connected to the other side. The steel-concrete composite column.

The pre-embedded steel bars are welded on the column limit steel plate.

There are 12 pre-embedded steel bars, which are welded on the column limit steel plate, and the diameter of the pre-embedded steel bars is 16 mm.

The ends of the right wing plate and the right web plate away from the column limiting steel plate are respectively connected to the left wing plate and the left web plate; the connecting steel plates are respectively fixed on the left web plate and the right web plate by bolts.

There are two connecting steel plates, and the two connecting steel plates clamp the left and right webs therein.

The beam connector and the column connector are both prefabricated components, which are formed by welding and combining steel structures.

By adopting the above technical scheme, the joint structure of the steel-concrete combined beam-column connection of the present invention belongs to the prefabricated concrete joint joint structure, and has similar seismic resistance, energy consumption and integrity as the traditional cast-in-place joint structure, and also It has the advantages of strong durability, clear force transmission mechanism, good ductility of steel structure, simple and fast connection method and high efficiency, and can replace the traditional connection method in practical engineering.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic diagram of the overall structure from another perspective of the present invention.

FIG. 3 is a schematic structural diagram of a beam-column joint connection of the present invention.

FIG. 4 is a partial cross-sectional view of FIG. 3 .

Among them: 1. Steel-concrete composite beam; 2. Steel-concrete composite column; 3. Reinforced concrete beam; 4. Reinforced concrete column; 5. Beam connector; 51. Left wing plate; 52. Left web plate; Limit steel plate; 54, embedded steel nails; 6, column connector; 61, right wing plate; 62, right web plate; 63, column limit steel plate; 64, embedded steel bar; 7, connecting steel plate; 8, bolt.

Detailed ways

The present utility model will be further described in detail below through the accompanying drawings and specific embodiments.

As shown in FIGS. 1-4 , a steel-concrete combined beam-column connection node structure of the present invention includes a steel-concrete composite beam 1 , a steel-concrete composite column 2 , a connecting steel plate 7 and bolts 8 .

The steel-concrete composite beam 1 includes a reinforced concrete beam 3 and a beam connector 5 , and the beam connector 5 is pre-buried at the end of the reinforced concrete beam 3 for integral casting.

The beam connector 5 includes a first I-beam and a left web 52 . The first I-beam includes two left wing plates 51 arranged in parallel and a beam limiting steel plate 53 connected between the two left wing plates 51 . , the left web 52 is located on one side of the beam limit steel plate 53 and is connected to the beam limit steel plate 53 and the left wing plate 51 respectively; the end of the reinforced concrete beam 3 is clamped between the two left wing plates 51 It is placed between and abuts on the side of the beam limiting steel plate 53 away from the left web 52 .

Pre-embedded steel nails 54 are provided on the beam connector 5 and in the area in contact with the reinforced concrete beam 3, and the embedded steel nails 54 are welded on the beam connector 5. The inner side of the left wing plate 51 is welded with 8 of the embedded steel nails 54, and four of the embedded steel nails 54 are welded on the beam limit steel plate 53, which are used to resist the bending moment generated at the beam-column joint. shear force. The radius of the cap portion of the embedded steel nail 54 is 10 mm and the height is 6 mm; the radius of the rod portion of the embedded steel nail 54 is 5 mm and the height is 35 mm.

The steel-concrete composite column 2 includes a reinforced concrete column 4 which is integrally cast and formed and a column connector 6 , and the column connector 6 is pre-buried at the node of the reinforced concrete column 4 .

The column connector 6 includes a column limit steel plate 63, a second I-beam and a plurality of pre-embedded steel bars 64, and the second I-beam and the embedded steel bars 64 are respectively arranged on both sides of the column limit steel plate 63, The second I-beam includes two right wing plates 61 and a right web plate 62 arranged in parallel. The other side of the limiting steel plate 63 is connected to the steel-concrete composite column 2 .

There are 12 pre-embedded steel bars 64, which are welded on the column limit steel plate 63, and the diameter of the pre-embedded steel bars 64 is 16 mm.

The steel-concrete composite beam 1 and the steel-concrete composite column 2 are connected through the connecting steel plate 7 , and the connecting steel plate 7 is respectively fixed to the beam connecting member 5 and the column connecting member 6 through bolts 8 . Specifically, the ends of the right wing plate 61 and the right web plate 62 away from the column limiting steel plate 63 are respectively connected to the left wing plate 51 and the left web plate 52 , and a hole is formed in the middle of the connecting steel plate 7 . The left web 52 and the right web 62 are also respectively provided with holes, and the bolts 8 pass through the holes to fix the left web 52 and the right web 62 . In this embodiment, there are two connecting steel plates 7, and the two connecting steel plates 7 clamp the left web 52 and the right web 62 therein.

The beam connector 5 and the column connector 6 are both prefabricated components, which are assembled by welding steel structures.

By adopting the above technical scheme, the joint structure of the steel-concrete combined beam-column connection of the present invention belongs to the prefabricated concrete joint joint structure, and has similar seismic resistance, energy consumption and integrity as the traditional cast-in-place joint structure, and also It has the advantage of higher construction efficiency and can replace the traditional connection method in actual engineering.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. a joint structure of steel-concrete combined beam-column connection, is characterized in that: comprise steel-concrete composite beam, steel-concrete composite column, connecting steel plate and bolt; Described steel-concrete composite beam comprises the steel bar of integral casting molding A concrete beam and a beam connector, the beam connector is pre-buried at the end of the reinforced concrete beam; the steel-concrete composite column includes a reinforced concrete column and a column connector that are integrally cast and formed, and the column connector is pre-buried. Buried at the node of the reinforced concrete column; the steel-concrete composite beam and the steel-concrete composite column are connected by the connecting steel plate, and the connecting steel plate is respectively fixed to the beam connector and the column connector by bolts. 2 . The joint structure of steel-concrete combined beam-column connection according to claim 1 , wherein the beam connector comprises a first I-beam and a left web, and the first I-beam comprises a parallel arrangement. 3 . The two left wing plates and the beam limit steel plate connected between the two left wing plates, the left web is located on one side of the beam limit steel plate and is respectively connected to the beam limit steel plate and the left wing plate; the reinforced concrete The end of the beam is clamped between the two left wings and abuts on the side of the beam limiting steel plate remote from the left web. 3. The joint structure of steel-concrete combined beam-column connection according to claim 2, characterized in that: pre-embedded steel nails are arranged on the beam connector and in the area in contact with the reinforced concrete beam. 4. The joint structure of steel-concrete combined beam-column connection according to claim 3, characterized in that: 8 said pre-embedded steel nails are arranged on the inner side of each said left wing plate, and said beam limiting steel plate is arranged on the inner side. There are 4 said pre-embedded steel nails on it. 5. The joint structure of steel-concrete combined beam-column connection according to claim 3, characterized in that: the radius of the cap of the embedded steel nail is 10mm, and the height is 6mm; The radius is 5mm and the height is 35mm. 6. The joint structure of steel-concrete combined beam-column connection according to any one of claims 1-5, wherein the column connector comprises a column limit steel plate, a second I-beam and a plurality of embedded Reinforcing bars, the second I-beam and the pre-embedded steel bars are respectively arranged on both sides of the column limit steel plate, the second I-beam comprises two right wing plates and a right web plate arranged in parallel, the right wing plate and the right One end of the web is connected to one side of the column limiting steel plate, and the other side of the column limiting steel plate is connected to the steel-concrete composite column. 7 . The joint structure of steel-concrete combined beam-column connection according to claim 6 , wherein: the number of the embedded steel bars is 12; the diameter of the embedded steel bars is 16 mm. 8 . 8. The joint structure of steel-concrete combined beam-column connection according to claim 6, wherein the ends of the right wing plate and the right web plate away from the column limit steel plate are connected to the left wing plate and the left web respectively. plate; the connecting steel plates are respectively fixed on the left web plate and the right web plate by bolts. 9 . The joint structure of steel-concrete combined beam-column connection according to claim 8 , wherein the number of the connecting steel plates is two, and the two connecting steel plates clamp the left web plate and the right web plate. 10 . in. 10. The joint structure of steel-concrete combined beam-column connection according to any one of claims 1-5, wherein the beam connector and the column connector are both prefabricated components, which are formed by welding and combining steel structures .

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