CN214884347U

CN214884347U - Reverse supporting structure suitable for steel column on floor

Info

Publication number: CN214884347U
Application number: CN202121389152.7U
Authority: CN
Inventors: 徐晓晖; 吴昊; 朱伟鑫; 王新秋; 张治华; 骆明红; 陈明
Original assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Current assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-11-26
Anticipated expiration: 2031-06-22

Abstract

The utility model provides a reverse support structure suitable for steel column on floor, steel column setting are on the floor, and the floor lower surface of steel column below is provided with two girder steels, installs reverse support structure between the girder steel under the steel column. The reverse supporting structure comprises a reverse beam top beam, a reverse beam side beam, an upper clamping plate, a cushion block and a lower clamping plate; notches matched with the upper flanges of the steel beams are arranged at the two ends of the reversed beam top beam, the notches of the reversed beam top beam are tightly attached to the upper flanges of the steel beams, and the upper surface of the reversed beam top beam is tightly attached to the lower surface of the floor between the steel beams; the lower surfaces of the two ends of the reversed beam top beam are welded with reversed beam side beams, the lower end of the reversed beam side beam is welded with an upper clamping plate, and the upper clamping plate is connected with the lower clamping plate through a cushion block and a bolt to clamp the steel beam lower flange. Reverse supporting construction can be with on load effective transmission to the girder steel for overall structure meets the requirements, and the tight joint in top each other need not the welding moreover between reverse supporting construction and the girder steel, can effectively prevent the condition that the structure stress state that leads to because of the welding changes.

Description

Reverse supporting structure suitable for steel column on floor

Technical Field

The utility model belongs to the technical field of the construction process equipment, especially, relate to a reverse support structure suitable for steel column on floor.

Background

For large public buildings such as conference exhibition centers and hotels, beam-column structures inevitably appear due to the characteristics of various functions, complex building structures, multiple plane changes and the like. The upper beam column is a steel column, usually, the steel column is arranged on a steel beam placed below the steel column, the load of the upper structure of the steel column is transmitted to the steel beam below the steel column, then the steel beam distributes the load to the lower bearing wall or column, and finally the load is transmitted to the foundation of a building.

However, the beam-to-column is a steel column provided by local building function variation adjustment, and in a large public building with a complex structure, especially a steel structure building, the steel column is usually not provided right above a lower layer steel beam but directly provided on a floor slab, which causes the beam-to-column load to directly act on the floor slab, which is not in compliance with the specification. In addition, in general, in design requirements, a main structure such as a lower-layer steel beam does not allow a secondary beam to be directly welded, on one hand, the direct welding quality on site is difficult to guarantee, and on the other hand, structural damage caused by a structural stress state unexpected in design is prevented. Therefore, there is a need for a support structure that can meet the structural design requirement of directly arranging the steel columns on the floor slab and can realize a main structure without welding operation.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a reverse support structure suitable for steel column on floor, reverse support structure sets up between the major structure girder steel of steel column below, and need not to carry out welding operation on the major structure girder steel, can be with load effective transmission to the girder steel on for whole building structure meets the requirements.

The utility model discloses a realize above-mentioned technical purpose through following technological means.

A reverse support structure suitable for steel columns on a floor slab is characterized in that the steel columns are mounted on the upper portion of the floor slab, two steel beams are symmetrically arranged on the lower surface of the floor slab below the steel columns, and the steel beams are I-shaped steel; a reverse support structure is arranged between the steel beams right below the steel columns;

the reverse supporting structure comprises a reverse beam top beam, a reverse beam side beam, an upper clamping plate and a lower clamping plate; notches matched with the upper flanges of the steel beams are arranged at the two ends of the reversed beam top beam, the notches are tightly attached to the upper flanges of the steel beams, and the upper surface of the reversed beam top beam is tightly attached to the lower surface of the floor slab between the two steel beams; the lower surfaces of two ends of the back beam top beam are welded with back beam side beams, the lower ends of the back beam side beams are welded with one end of an upper clamping plate, the side edges of the back beam side beams are tightly attached to a steel beam web plate, and the lower surfaces of the upper clamping plates are tightly attached to a steel beam lower flange; the other end of the upper clamping plate extends out of the steel beam and is connected with the lower clamping plate through an expansion bolt to clamp a lower flange of the steel beam.

Further, the steel column, the reverse beam top beam and the reverse beam side beam are Q235 galvanized square columns.

Furthermore, the cross-sectional dimensions of the reverse beam top beam and the reverse beam side beam are the same as those of the steel column, and the widths of the upper clamping plate, the cushion block and the lower clamping plate are the same as those of the section of the steel column.

Further, a cushion block is further installed between the upper clamping plate and the lower clamping plate, the thickness of the cushion block is the same as that of the steel beam lower flange, and the steel beam lower flange is tightly attached to the upper surface of the lower clamping plate.

Further, the upper part of the floor slab is fixedly anchored with a rear embedded part through M12 chemical anchor bolts, and steel columns are welded on the rear embedded part.

The utility model discloses following beneficial effect has:

the utility model provides a reverse support structure is particularly useful for the direct building structure that sets up on the floor of post on the roof beam, can effectively share the load that some floors bore, further transmits the load to the girder steel of floor below on, guarantees whole building structure's security, accords with the standard requirement. And the utility model provides a for the tight joint in mutual top between reverse support structure and the girder steel to it is fixed through expansion bolts, need not the welding, the construction is simple, but also can effectively prevent the condition that the structure stress state that leads to because of the welding changes, and then prevents that building structure from being destroyed.

Drawings

FIG. 1 is a schematic view of the use of the reverse bracing configuration of the present invention;

fig. 2 is a schematic view of the structure of the reverse supporting structure of the present invention.

In the figure: 1-a floor slab; 2, placing a post embedded part; 3-steel column; 4-a steel beam; 5-reverse beam top beam; 6-a counter beam side beam; 7-upper splint; 8-cushion block; 9-lower splint; 10-expansion bolt.

Detailed Description

The invention will be further described with reference to the drawings and the following examples, but the scope of the invention is not limited thereto.

In the description of the present invention, it should be understood that the terms "upper" and "lower" indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, which is only for the convenience of describing the present invention, and therefore, the present invention is not limited thereto; the specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the actual building engineering, as shown in fig. 1, the upper part of a floor slab 1 is anchored with a rear embedded part 2 through an M12 chemical anchor bolt, and a steel column 3 is welded on the rear embedded part 2 through an automatic submerged arc welding mode; the steel column 3 is a Q235 galvanized square column, the section dimension specifications of the steel column 3, namely the length dimension, the width dimension and the thickness dimension specifications of the square section of the steel column 3 comprise 200 multiplied by 150 multiplied by 6mm, 200 multiplied by 8 mm, 250 multiplied by 200 multiplied by 8 mm and 300 multiplied by 200 multiplied by 12 mm, and the specific specification selection is determined according to the application condition of a construction site; floor 1 below steel column 3 is provided with two girder steels 4 as the support below the surface symmetry, and girder steel 4 is preferably the I-steel, installs between girder steel 4 under the steel column 3 reverse support structure. Floor 1 is assembled steel bar truss building carrier plate structure, can show and reduce on-the-spot reinforcement engineering volume for the construction progress increases construction safety and guarantees, realizes civilized construction.

As shown in fig. 2, the reverse supporting structure suitable for the steel column on the floor of the present invention is installed between the steel beams 4 right below the steel column 3; the reverse support structure comprises a reverse beam top beam 5, a reverse beam side beam 6, an upper clamping plate 7, a cushion block 8 and a lower clamping plate 9. The reverse beam top beam 5 and the reverse beam side beam 6 are Q235 galvanized square columns, the cross section dimensions of the reverse beam top beam 5 and the reverse beam side beam 6 are the same as those of the steel column 3, and the widths of the upper clamping plate 7, the cushion block 8 and the lower clamping plate 9 are the same as that of the section of the steel column 3. The notches matched with the upper flanges of the steel beams 4 are arranged at the two ends of the reversed beam top beam 5, so that the notches at the two ends of the reversed beam top beam 5 in actual use can be tightly attached to the upper flanges of the two steel beams 4, and the upper surface of the reversed beam top beam 5 can be tightly attached to the lower surface of the floor slab 1 between the two steel beams 4. The lower surfaces of the two ends of the reverse beam top beam 5 are vertically welded with reverse beam side beams 6, the lower ends of the reverse beam side beams 6 are welded with upper clamping plates 7, the side edges of the reverse beam side beams 6 are tightly attached to the web plates of the steel beams 4, and the lower surfaces of the upper clamping plates 7 are tightly attached to the lower edges of the steel beams 4. One end of an upper clamping plate 7 which is not welded with the reverse beam side beam 6 extends out of the steel beam 4 and is connected with a lower clamping plate 9 through a cushion block 8 and an expansion bolt 10 to clamp the lower flange of the steel beam 4 together; the thickness of the cushion block 8 is the same as that of the lower flange of the steel beam 4, and the upper surface of the lower clamping plate 9 is tightly attached to the lower flange of the steel beam 4. When the steel column 3 is directly arranged on the floor slab 1, the reverse supporting structure can disperse the load borne by the floor slab 1, and the building structure is ensured to meet the standard requirement.

The embodiment is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and any obvious improvement, replacement or modification which can be made by those skilled in the art without departing from the essence of the present invention belongs to the protection scope of the present invention.

Claims

1. The reverse support structure suitable for the steel column on the floor is characterized in that the steel column (3) is installed at the upper part of the floor (1), two steel beams (4) are symmetrically arranged on the lower surface of the floor (1) below the steel column (3), and the steel beams (4) are I-shaped steel; a reverse support structure is arranged between the steel beams (4) right below the steel columns (3);

the reverse supporting structure comprises a reverse beam top beam (5), a reverse beam side beam (6), an upper clamping plate (7) and a lower clamping plate (9); notches matched with the upper flanges of the steel beams (4) are formed in the two ends of the reversed beam top beam (5), the notches are tightly attached to the upper flanges of the steel beams (4), and the upper surface of the reversed beam top beam (5) is tightly attached to the lower surface of the floor slab (1) between the two steel beams (4); the lower surfaces of two ends of the reversed beam top beam (5) are respectively welded with a reversed beam side beam (6), the lower end of the reversed beam side beam (6) is welded with one end of an upper clamping plate (7), the side edge of the reversed beam side beam (6) is tightly attached to a web plate of the steel beam (4), and the lower surface of the upper clamping plate (7) is tightly attached to a lower flange of the steel beam (4); the other end of the upper clamping plate (7) extends out of the steel beam (4) and is connected with the lower clamping plate (9) through an expansion bolt (10) to clamp the lower flange of the steel beam (4).

2. The reverse support structure for steel columns on floors as claimed in claim 1, wherein the steel columns (3), the top inverted beam beams (5) and the side inverted beam beams (6) are Q235 galvanized square columns.

3. The reverse support structure for the steel column on the floor slab as claimed in claim 2, wherein the cross-sectional dimensions of the reverse beam top beam (5) and the reverse beam side beam (6) are the same as those of the steel column (3), and the widths of the upper clamping plate (7), the cushion block (8) and the lower clamping plate (9) are the same as those of the section of the steel column (3).

4. The reverse supporting structure for the steel column on the floor slab as claimed in claim 1, wherein a cushion block (8) is further installed between the upper clamping plate (7) and the lower clamping plate (9), the thickness of the cushion block (8) is the same as that of the lower flange of the steel beam (4), and the upper surface of the lower clamping plate (9) is tightly attached to the lower flange of the steel beam (4).

5. The reverse support structure for steel columns on floor slab of claim 1, wherein the upper part of the floor slab (1) is anchored with the post-embedded part (2) by M12 chemical anchor bolts, and the steel columns (3) are welded on the post-embedded part (2).