CN-117090341-B - Assembled girder steel

CN117090341BCN 117090341 BCN117090341 BCN 117090341BCN-117090341-B

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 device comprises a first support, a second support, a support and a support, wherein one end of the first support is provided with a first pouring opening, the first pouring opening is arranged at the top of the first pouring opening, the second pouring opening is arranged at the bottom of the first support, the first pouring opening is sleeved in the first pouring opening, the first pouring opening is communicated with the first pouring opening, the second pouring opening is communicated with the second pouring opening, and the support is supported at the bottom of the second pouring opening. 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.

Inventors

Zou Xianyin
JIANG QIONG
Qin Chuncan
LIU QINGLI
LIANG YANZHEN
Huang Jinnong
YANG YANXIU

Assignees

广西力宇建设工程检测有限公司

Dates

Publication Date: 20260512
Application Date: 20230808

Claims (4)

1. The assembled steel beam is characterized by comprising a first bracket (1), a second bracket (2), a support column (3) and a support column (3), wherein one end of the first bracket (1) is provided with a first connecting head (4), the top of the first connecting head (4) is provided with a first pouring opening (10), one end of the second bracket (2) is provided with a second connecting head (5) corresponding to the first connecting head (4), the top of the second connecting head (5) is provided with a second pouring opening corresponding to the first pouring opening (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 inner part of the second connecting head (5), the first pouring opening (10) and the second pouring opening are communicated with the pouring cavity (6), and the support column (3) is supported at the bottom of the second connecting head (5); The first connector (4) and the second connector (5) are box structures with one side open, the opening of the second connector (5) is larger than that of the first connector (4), and the first connector (4) is sleeved in the opening of the second connector (5); a plurality of reinforcing rods (7) are arranged in the pouring cavity (6), and the reinforcing rods (7) are distributed on the inner side box walls of the first connector (4) and the second connector (5); the reinforcing rods (7) positioned on the tank wall of the first connector (4) and the reinforcing rods (7) positioned on the tank wall of the second connector (5) are arranged at intervals in the vertical direction; the reinforcing rod (7) is a steel pipe (8) provided with a notch (13); The area of the notch (13) of the steel pipe (8) accounts for less than or equal to 1/2 of the total circumferential area of the steel pipe (8); a plurality of steel pipes (8) are enclosed to form a circle and fixed on the inner wall of the first connector (4), and the notch (13) of each steel pipe (8) is aligned with the circle center, a plurality of steel pipes (8) are enclosed to form 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.
2. 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.
3. An assembled steel girder according to claim 2, characterized in that the edges of the pouring groove (9) are smoothly inclined towards the first pouring opening (10).
4. 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).

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: The assembled steel beam comprises a first support, a second support, a support and a support, wherein a first pouring opening is formed in the top of the first support, a second connector corresponding to the first pouring opening is formed in one end of the second support, 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 in a surrounding mode, 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