CN117090341A

CN117090341A - Assembled girder steel

Info

Publication number: CN117090341A
Application number: CN202310990881.5A
Authority: CN
Inventors: 邹线引; 蒋琼; 覃春灿; 刘庆利; 梁艳珍; 黄进浓; 阳艳秀
Original assignee: Guangxi Liyu Construction Engineering Testing Co ltd
Current assignee: Guangxi Liyu Construction Engineering Testing Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2023-11-21

Abstract

The invention discloses a combined steel beam, which relates to the technical field of steel frame structures and comprises a first bracket, wherein one end of the first bracket is provided with a first connecting head, and the top of the first connecting head is provided with a first pouring opening; the second bracket is provided with a second connector corresponding to the first connector at one end, and a second pouring opening corresponding to the first pouring opening is formed in the top of the second connector; the first connector is sleeved in the second connector, a pouring cavity is formed by the first connector and the second connector, and the first pouring opening and the second pouring opening are communicated with the pouring cavity; and the support is supported at the bottom of the second connector. According to the invention, the first connector is sleeved in the second connector, and the first bracket and the second bracket are stably assembled and connected by pouring concrete into the pouring cavity, so that the collapse caused by bending deformation of the steel beam is prevented, and the safety and durability of the combined steel beam structure are improved.

Description

Assembled girder steel

Technical Field

The invention relates to the technical field of steel girder structures, in particular to an assembled steel girder.

Background

For areas with larger span and heavier load, the bearing structure of the combined steel girder structure is generally formed by prestressed concrete girders, steel trusses or steel girders and combined floor slabs. The combined steel beam structure is widely applied because of the advantages of high material utilization rate, small section height, convenient construction and the like.

The existing assembled steel beams are not stable enough in connection at the connection position, are easy to bend and deform and even collapse under the action of the floor slab, and seriously influence the safety and durability of the assembled steel beam structure.

Disclosure of Invention

In order to overcome the defects, the invention provides the assembled steel beam, which can assemble a plurality of steel beams together in a region with large span and heavy load, so that the stability of the assembled steel beam is improved, the bending deformation of the steel beam is prevented, and the safety and durability of the assembled steel beam structure are improved. The specific technical scheme is as follows:

an assembled steel girder, comprising: the device comprises a first bracket, a second bracket and a first connecting head, wherein one end of the first bracket is provided with the first connecting head, and the top of the first connecting head is provided with a first filling opening; the first support is provided with a first connecting head corresponding to the first connecting head, and a first pouring opening corresponding to the first pouring opening is formed in the top of the first connecting head; the first connector is sleeved in the second connector, a pouring cavity is formed by the first connector and the second connector, and the first pouring opening and the second pouring opening are communicated with the pouring cavity; and the support is supported at the bottom of the second connector.

Preferably, the first connector and the second connector are both box structures with one side open, and the opening of the second connector is larger than that of the first connector, and the first connector is sleeved in the opening of the second connector.

Preferably, a plurality of reinforcing rods are arranged in the pouring cavity, and the reinforcing rods are distributed on the inner side tank walls of the first connector and the second connector.

Preferably, the reinforcing rods located on the first connector box wall and the reinforcing rods located on the second connector box wall are arranged at intervals in the vertical direction.

Preferably, the reinforcing rod is a steel pipe with a notch.

Preferably, the percentage of the gap area of the steel pipe to the total circumferential area of the steel pipe is less than or equal to 1/2.

Preferably, a plurality of steel pipes are enclosed to form a circle and fixed on the inner wall of the first connector, the notch of each steel pipe is aligned with the circle center, a plurality of steel pipes are enclosed to form a circle and fixed on the inner wall of the second connector, and the notch of each steel pipe is aligned with the circle center.

Preferably, a filling groove communicated with the first filling opening and the second filling opening is formed in the periphery of the top of the second connector and surrounding the first filling opening.

Preferably, the edge of the pouring groove is inclined smoothly towards the first pouring opening.

Preferably, a mounting groove is formed in the bottom of the second connector, and the top end of the support column is abutted to the mounting groove.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the first connector is sleeved in the second connector, and the first bracket and the second bracket are stably assembled and connected by pouring concrete into the pouring cavity, so that the collapse caused by bending deformation of the steel beam is prevented, and the safety and durability of the combined steel beam structure are improved.

According to the invention, the plurality of reinforcing rods are arranged on the inner walls of the first connector and the second connector, so that the holding power of concrete at the joint can be improved, and the first bracket can be fixedly connected with the second better bracket.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the present invention;

FIG. 3 is a schematic view of the distribution structure of the steel pipe according to the present invention.

The device comprises a first bracket, a second bracket, a 3-pillar, a first connector, a second connector, a pouring cavity, a 7-reinforcing rod, a 8-steel pipe, a 9-pouring groove, a 10-first pouring opening, a 11-supporting structure, a 12-mounting groove and a 13-notch, wherein the first bracket is connected with the second bracket.

Description of the embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The terms "first," "second," "third," and the like, if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Please participate in fig. 1-3, an assembled steel girder, comprising: a first bracket 1, wherein a first connector 4 is arranged at one end of the first bracket 1, and a first perfusion opening 10 is arranged at the top of the first connector 4; a second connector 5 corresponding to the first connector 4 is arranged at one end of the second bracket 2, and a second filling port corresponding to the first filling port 10 is arranged at the top of the second connector 5; the first connector 4 is sleeved in the second connector 5, a pouring cavity 6 is formed by the first connector 4 and the second connector 5, and the first pouring opening 10 and the second pouring opening are communicated with the pouring cavity 6; and a support column 3, wherein the support column 3 is supported at the bottom of the second connector 5.

In the above scheme, the first bracket 1 and the second bracket 2 are rectangular structures formed by welding and splicing a plurality of steel bars, in other embodiments, the first bracket and the second bracket can be welded to form different shapes, the first connector 4 is a box-shaped structure formed by welding steel plates, an opening is arranged on the right side of one side of the box structure, and the left side of the other side of the box structure is sealed and welded and fixed at the end of the first bracket 1; the second connector 5 is a box-shaped structure formed by welding steel plates, an opening at the left side of one side of the box structure is formed, the right side of the other side of the box structure is welded and fixed at the end of the second support 2 respectively, when the box is assembled, the first connector 4 is sleeved in the second connector 5 to form a pouring cavity 6, after the assembly is completed, concrete is poured into the first pouring opening 10, the concrete flows into the pouring cavity 6 from the second pouring opening to complete the assembly of the first support 1 and the second support 2, the first support 1 and the second support 2 are solidified together, the bottom of the second connector 5 is finally supported by the support 3, and in addition, the first ends of the principle support 3 of the first support 1 and the second support 2 are all fixed on other supporting structures 11 to complete the assembly of the large-span steel beam.

As a preferable scheme, the first connector 4 and the second connector 5 are both box structures with one side open, and the opening of the second connector 5 is larger than the opening of the first connector 4, and the first connector 4 is sleeved in the opening of the second connector 5.

Preferably, a plurality of reinforcing rods 7 are arranged in the pouring cavity 6, and the reinforcing rods 7 are distributed on the inner side walls of the first connector 4 and the second connector 5. The reinforcing rod 7 has fine holding power to the concrete in the pouring cavity 6 for the concatenation that first support 1 and second support 2 can be better is in the same place, improves the stability of girder steel.

Preferably, the reinforcing rods 7 on the tank wall of the first connector 4 and the reinforcing rods 7 on the tank wall of the second connector 5 are arranged at intervals in the vertical direction. The reinforcing rods 7 on the first connector 4 and the second connector 5 are arranged at intervals in the vertical direction, and better holding power is provided after concrete in the pouring cavity 6 is solidified, so that the first bracket 1 and the second bracket 2 can be better spliced together, and the stability of the steel beam is improved.

Preferably, the reinforcing rod 7 is a steel pipe 8 provided with a notch 13. The steel pipe 8 is provided with the notch 13, wherein the steel pipe 8 is in a form of being partially opened (the circumferential notch 13), so that the steel pipe 8 can be better filled when concrete is poured, the steel pipe 8 can be used as a stress member to resist the external load effect of the later-stage opening, the requirement of the connection stability of the connection position of the first bracket 1 and the second bracket 2 is met, and simultaneously, larger bearing capacity is provided.

Preferably, the area of the notch 13 of the steel pipe 8 is less than or equal to 1/2 of the total circumferential area of the steel pipe 8. This arrangement of the indentations 13 allows a better grip on the concrete, making the connection of the first and second brackets 1, 2 more stable and safe.

As a preferable scheme, a plurality of steel pipes 8 are enclosed into a circle and fixed on the inner wall of the first connector 4, the notch 13 of each steel pipe 8 is aligned with the circle center, a plurality of steel pipes 8 are enclosed into a circle and fixed on the inner wall of the second connector 5, and the notch 13 of each steel pipe 8 is aligned with the circle center. The steel pipe 8 with the notch 13 surrounds a round structure, so that the concrete has good holding power, the first bracket 1 and the second bracket 2 are connected more stably, and the steel beam is prevented from deforming.

Preferably, a filling groove 9 is formed around the first filling port 10 at the top of the second connector 5, and is communicated with the first filling port 10 and the second filling port. The pouring groove 9 can strengthen the sealing of the first pouring opening 10, fix the first bracket 1 and the second bracket 2 together, and improve the stability

Preferably, the edge of the pouring recess 9 is inclined smoothly towards the first pouring opening 10. When the pouring cavity 6 is to be poured with concrete, the introduction of concrete into the pouring cavity 6 is facilitated, whereby a fixed connection is achieved for the first and second brackets 1, 2.

Preferably, a mounting groove 12 is formed at the bottom of the second connector 5, and the top end of the pillar 3 abuts against the mounting groove 12. The mounting groove 12 just can be blocked at the top end of the support column 3, so that the support of the assembled bracket is more stable.

As an optimal scheme, the sleeving part of the first connector and the second connector is also provided with a sealing rubber pad.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An assembled steel girder, comprising:

the device comprises a first bracket (1), wherein one end of the first bracket (1) is provided with a first connecting head (4), and a first filling opening (10) is formed in the top of the first connecting head (4);

the second support (2), one end of the second support (2) is provided with a second connector (5) corresponding to the first connector (4), and the top of the second connector (5) is provided with a second filling port corresponding to the first filling port (10); the first connecting head (4) is sleeved in the second connecting head (5), a pouring cavity (6) is formed by the first connecting head (4) and the second connecting head (5), and the first pouring opening (10) and the second pouring opening are communicated with the pouring cavity (6); and

and the support column (3) is supported at the bottom of the second connector (5).

2. An assembled steel girder according to claim 1, characterized in that the first connector (4) and the second connector (5) are box structures with one side open, and the opening of the second connector (5) is larger than the opening of the first connector (4), and the first connector (4) is sleeved in the opening of the second connector (5).

3. An assembled steel girder according to claim 2, characterized in that a plurality of reinforcing rods (7) are arranged in the pouring cavity (6), and the reinforcing rods (7) are distributed on the inner side walls of the first connector (4) and the second connector (5).

4. A modular steel girder according to claim 3, characterized in that the reinforcement bars (7) on the walls of the first connection head (4) are arranged at a distance from the reinforcement bars (7) on the walls of the second connection head (5) in the vertical direction.

5. An assembled steel girder according to claim 2, characterized in that the reinforcement bars (7) are steel pipes (8) provided with notches (13).

6. An assembled steel girder according to claim 5, characterized in that the area of the indentations (13) of the steel pipe (8) is less than or equal to 1/2 of the total circumferential area of the steel pipe (8).

7. An assembled steel girder according to claim 6, characterized in that a plurality of steel pipes (8) are fixed on the inner wall of the first joint (4) in a round shape, the notch (13) of each steel pipe (8) is aligned with the circle center, a plurality of steel pipes (8) are fixed on the inner wall of the second joint (5) in a round shape, and the notch (13) of each steel pipe (8) is aligned with the circle center.

8. An assembled steel girder according to claim 1, characterized in that the top of the second joint (5) is provided with a pouring groove (9) surrounding the first pouring opening (10) and communicating with the first pouring opening (10) and the second pouring opening.

9. An assembled steel girder according to claim 8, characterized in that the edges of the pouring recess (9) are smoothly inclined towards the first pouring opening (10).

10. An assembled steel girder according to claim 1, characterized in that the bottom of the second connection head (5) is provided with a mounting groove (12), and the top end of the support column (3) is abutted with the inside of the mounting groove (12).