CN217326616U - Device for reinforcing C-shaped cold-formed thin-wall steel simply-supported purlines into continuous purlines - Google Patents

Abstract

The utility model discloses a C shape thin wall shaped steel letter purlin consolidates device for continuous purlin, still including last L shape thin wall shaped steel member (6) on current steel construction roofing structure, lower L shape thin wall shaped steel member (7), and steel sheet (8), go up L shape thin wall shaped steel member (6), lower L shape thin wall shaped steel member (7) are installed respectively in the inboard upper portion and the lower part of former C shape thin wall shaped steel letter purlin, be used for consolidating two sections adjacent letter purlins and be continuous purlin, steel sheet (8) are installed at last, the inboard of the plane that lower L shape thin wall shaped steel member formed is used for further consolidating L shape thin wall shaped steel member. The utility model discloses aim at consolidating to continuous purlin through the letter purlin that will have among the steel construction roofing now to improve the bearing capacity of whole steel construction roofing, be convenient for carry out follow-up reinforcement to the steel construction roofing and reform transform.

Description

Device for reinforcing C-shaped cold-formed thin-wall steel simply-supported purlines into continuous purlines

Technical Field

The utility model belongs to steel construction roofing reinforcement field in the building field, concretely relates to C shape thin-walled steel letter purlin consolidates device for continuous purlin.

Background

As shown in fig. 1 and 2, for the existing steel structure roof C-shaped thin-walled cold-formed steel simply-supported purlin structure node, the structure includes original C-shaped thin-walled cold-formed steel simply-supported purlin 1, purlin supporting plates 2, bolts 3, main steel beams 4 and a corner brace 5, the purlin supporting plates 2 are used for connecting the original C-shaped thin-walled cold-formed steel simply-supported purlin 1 with the upper portions of the main steel beams 4, the bolts 3 are used for connecting the original C-shaped thin-walled cold-formed steel simply-supported purlin 1 with the purlin supporting plates 2, and the corner brace 5 is used for connecting the original C-shaped thin-walled cold-formed steel simply-supported purlin 1 with the lower portions of the main steel beams 4 (see fig. 1). If the plan of steel construction roofing is carried out if increasing the photovoltaic board, reform transform such as increase heat preservation, former steel construction roofing C shape thin-walled steel letter simply supported purlin bearing capacity may not satisfy the transformation requirement and need consolidate. If consolidate simply supported purlin for continuous purlin, then can improve the purlin bearing capacity, need not consolidate just can reach the reinforcement effect to whole section purlin, satisfy the transformation requirement.

Disclosure of Invention

In order to satisfy the current need that the thin-walled steel simple purlin of steel construction roofing C shape was consolidated, the utility model provides a device for continuous purlin is consolidated to the thin-walled steel simple purlin of C shape cold-formed, aims at improving the bearing capacity of whole steel construction roofing through consolidating to the simple purlin continuous purlin, can realize reforming transform again to this type of steel construction roofing.

The utility model adopts the technical proposal that: the device comprises an original C-shaped cold-bending thin-wall steel simple supporting purline, a purline supporting plate, an original bolt, a main steel beam and a corner support, wherein the purline supporting plate is used for connecting the original C-shaped cold-bending thin-wall steel simple supporting purline with the upper part of the main steel beam, the original bolt is used for connecting the original C-shaped cold-bending thin-wall steel simple supporting purline with the purline supporting plate, the corner support is used for connecting the lower part of the original C-shaped cold-bending thin-wall steel simple supporting purline with the main steel beam, the device also comprises an upper L-shaped cold-bending thin-wall steel component, a lower L-shaped cold-bending thin-wall steel component and a thin steel plate, the upper L-shaped cold-bending thin-wall steel component and the lower L-shaped cold-bending thin-wall steel component are respectively arranged on the upper part and the lower part of the inner side of the original C-shaped cold-bending thin-wall steel simple supporting purline and are used for reinforcing two adjacent sections of the original C-shaped cold-bending thin-wall steel simple supporting purline into a continuous purline, the thin steel plate is arranged on the inner side of a plane formed by the upper L-shaped cold-bending thin-wall steel component and the lower L-shaped cold-bending thin-wall steel component and is used for further reinforcing the original C-shaped cold-bending thin-wall steel simply-supported purline.

Preferably, the upper L-shaped cold-formed thin-walled steel member and the lower L-shaped cold-formed thin-walled steel member are fixed to the upper portion and the lower portion of the inner side of the original C-shaped cold-formed thin-walled steel simple supporting purline through structural glue, the thin steel plate is fixed to the inner side of a plane formed by the upper L-shaped cold-formed thin-walled steel member and the lower L-shaped cold-formed thin-walled steel member through structural glue, and then the thin steel plate, the upper L-shaped cold-formed thin-walled steel member and the lower L-shaped cold-formed thin-walled steel member are fixed to the original C-shaped cold-formed thin-walled steel simple supporting purline through newly added bolts in sequence.

Preferably, the total number of bolts used for reinforcing each section of original C-shaped cold-formed thin-wall steel simply-supported purlin is determined by calculation, the distance between every two adjacent bolts on the upper portion or the lower portion is 80-100 mm, and the distance between the end bolt and the edge is 30-50 mm.

Preferably, the thickness of the upper L-shaped cold-formed thin-walled steel member and the thickness of the lower L-shaped cold-formed thin-walled steel member are the same as the thickness of an original C-shaped cold-formed thin-walled steel simply-supported purline, and the thickness of the thin steel plate is 2 mm.

Further, the method for reinforcing the C-shaped cold-formed thin-wall steel simply-supported purline into the continuous purline comprises the following steps:

s01: preparing an upper L-shaped cold-formed thin-walled steel member, a lower L-shaped cold-formed thin-walled steel member and a thin steel plate, and respectively marking the positions of center lines on the thin steel plate;

s02: loosening bolts at the joint of the original C-shaped cold-formed thin-walled steel simple supporting purline and the purline supporting plate on the roof, loosening bolts at the joint of the angle brace and the original C-shaped cold-formed thin-walled steel simple supporting purline, and connecting the upper L-shaped cold-formed thin-walled steel member and the lower L-shaped cold-formed thin-walled steel member with the original C-shaped cold-formed thin-walled steel simple supporting purline through a structural adhesive;

s03: connecting the thin steel plate with the upper L-shaped cold-bending thin-wall steel member and the lower L-shaped cold-bending C thin-wall steel member through a structural adhesive;

s04: and the four bolt hole positions at the superposed positions of the thin steel plate, the upper L-shaped cold-bending thin-wall steel component and the lower L-shaped cold-bending C thin-wall steel component correspond to the original bolt holes at the positions, and the bolt hole positions at the angle support position correspond to the original bolt holes at the positions. And the positions of the holes of the other newly added bolts are determined according to the design.

S05: the bolts loosened at the joints of the original C-shaped cold-formed thin-wall steel simple supporting purlins and the purlin supporting plates in the step S02 are screwed again, and the bolts loosened at the joints of the angle braces and the original C-shaped cold-formed thin-wall steel simple supporting purlins are screwed tightly;

s06: sequentially screwing and fixing the thin steel plate, the upper L-shaped cold-formed thin-walled steel component and the lower L-shaped cold-formed thin-walled steel component with the original C-shaped cold-formed thin-walled steel simply-supported purline at the bolt hole position by using bolts;

preferably, in the step S05, the newly added bolts are distributed on the upper portion and the lower portion of each section of original C-shaped cold-formed thin-walled steel simple purlin, the total number of the bolts is determined by calculation, the distance between every two adjacent bolts on the upper portion or the lower portion is 80mm-100mm, and the distance between the bolt at the end portion and the edge is 30mm-50 mm.

The utility model has the advantages that: the continuous purlin structure is formed by connecting the existing simple supporting purlines disconnected with the steel structure roof through the upper L-shaped cold-bending thin-wall steel member, the lower L-shaped cold-bending thin-wall steel member and the thin steel plate, so that the bearing capacity of the whole steel structure roof is improved, and further processing and transformation of photovoltaic panels, heat insulation layers and the like can be added on the steel structure roof.

Drawings

FIG. 1 is a schematic elevation view of an original C-shaped cold-formed thin-walled steel simply supported purline of a conventional steel structure roof;

FIG. 2 is a schematic cross-sectional view of a simple purline made of original C-shaped cold-formed thin-walled steel in FIG. 1;

FIG. 3 is a schematic view of the vertical surface of the device for reinforcing the C-shaped cold-formed thin-walled steel simple purlin into a continuous purlin;

FIG. 4 is a schematic cross-sectional view of the reinforcement of FIG. 3 into a continuous purlin;

FIG. 5 is a schematic structural view of an upper L-shaped cold-formed thin-walled steel member and a lower L-shaped cold-formed thin-walled steel member in FIG. 4;

fig. 6 is a schematic view of the thin steel plate structure in fig. 3.

In the figure: 1-original C-shaped cold-formed thin-wall steel simple supporting purline, 2-purline supporting plate, 3-original bolt, 4-main steel beam, 5-angle brace, 6-upper L-shaped cold-formed thin-wall steel component, 7-lower L-shaped cold-formed thin-wall steel component, 8-thin steel plate and 9-new bolt.

Detailed Description

The present invention will be further described with reference to the following specific drawings.

As shown in fig. 1 and 2, the existing steel structure roof includes original C-shaped thin-walled steel simple-supported purlins 1, purlin supporting plates 2, original bolts 3, main steel beams 4 and angle braces 5, the purlin supporting plates 2 are used for connecting the original C-shaped thin-walled steel simple-supported purlins 1 with the upper portions of the main steel beams 4, the original bolts 3 are used for connecting the original C-shaped thin-walled steel simple-supported purlins 1 with the purlin supporting plates 2, the angle braces 5 are used for connecting the lower portions of the original C-shaped thin-walled steel simple-supported purlins 1 with the main steel beams 4, two adjacent original C-shaped thin-walled steel simple-supported purlins 1 are broken at the main steel beams 4, in order to reinforce the two broken adjacent original C-shaped thin-walled steel simple-supported purlins 1 into continuous purlins, the application provides a device for reinforcing the C-shaped thin-walled steel simple-supported purlins into continuous purlins, as shown in fig. 3, the existing steel structure roof illustrated in fig. 1 further includes upper L-shaped steel structure cold-formed steel members 6, the steel plate 8 is arranged on the inner side of a plane formed by the upper L-shaped cold-bending thin-wall steel member 6 and the lower L-shaped cold-bending thin-wall steel member 7 through structural glue and is used for further reinforcing the upper L-shaped cold-bending thin-wall steel member 6 and the lower L-shaped cold-bending thin-wall steel member 7, and the steel plate 8, the upper L-shaped cold-bending thin-wall steel member 6 and the lower L-shaped cold-bending thin-wall steel member 7 are sequentially fixed with the original C-shaped cold-bending thin-wall steel simple supporting purline 1 through a newly added bolt 9. Therefore, two adjacent sections of original C-shaped cold-formed thin-wall steel simply-supported purlines 1 in the figure 1 can be reinforced into continuous purline shapes, and the bearing capacity of the whole steel structure roof is improved.

As shown in fig. 4 and 5, the upper L-shaped cold-formed thin-walled steel member 6 and the lower L-shaped cold-formed thin-walled steel member 7 are tightly attached to the inner side of the original C-shaped cold-formed thin-walled steel simple-supported purlin 1, the upper flange of the upper L-shaped cold-formed thin-walled steel member is tightly attached to the upper flange of the original C-shaped cold-formed thin-walled steel simple-supported purlin 1 (see fig. 5), the lower flange of the lower L-shaped cold-formed thin-walled steel member 7 is tightly attached to the lower flange of the original C-shaped cold-formed thin-walled steel simple-supported purlin 1 (see fig. 5), and after attachment, the centers of the upper L-shaped cold-formed thin-walled steel member 6 and the lower L-shaped cold-formed thin-walled steel member 7 are located at the joint of the two adjacent original C-shaped cold-formed thin-walled steel simple-supported purlins 1.

As shown in fig. 6, which is a schematic structural diagram of the thin steel plate 8, the thin steel plate 8 has a thickness of 2mm, and four bolt holes are formed in the center of the thin steel plate 8, and the number and the positions of the bolt holes are the same as those of the bolt holes formed in the original purlin supporting plate 2. The left side and the right side are respectively provided with a plurality of bolt holes which are distributed in an upper group and a lower group, the upper group is used for connecting the thin steel plate 8 and the upper L-shaped cold-bending thin-wall steel member 6 to the original C-shaped cold-bending thin-wall steel simply-supported purline 1, the lower group is used for connecting the thin steel plate 8 and the lower L-shaped cold-bending thin-wall steel member 7 to the original C-shaped cold-bending thin-wall steel simply-supported purline 1, the distance between every two adjacent bolts is 80-100 mm, and the distance between the end bolt and the edge is 30-50 mm.

A device that C shape cold-formed thin-walled steel simple purlin consolidate for continuous purlin, realize according to following method:

s01: preparing an upper L-shaped cold-formed thin-walled steel member 6, a lower L-shaped cold-formed thin-walled steel member 7 and a thin steel plate 8, and respectively marking the positions of center lines on the thin steel plate;

s02: loosening original bolts 3 at the joint of an original C-shaped thin-walled steel simple-supported purline 1 and a purline supporting plate 2 on a roof, connecting an upper L-shaped cold-bent thin-walled steel member 6 and a lower L-shaped cold-bent thin-walled steel member 7 with the original C-shaped thin-walled steel simple-supported purline 1 through a structural adhesive, and coinciding the central lines of the upper L-shaped cold-bent thin-walled steel member 6 and the lower L-shaped cold-bent thin-walled steel member 7 with the vertical central lines of four bolts at the joint of the original C-shaped thin-walled steel simple-supported purline 1 and the purline supporting plate during connection;

s03: connecting the thin steel plate 8 with the upper L-shaped cold-formed thin-walled steel component 6 and the lower L-shaped cold-formed thin-walled steel component 7 through a structural adhesive, and superposing the central line of the thin steel plate 8 with the vertical central lines of four bolts at the connecting part of the original C-shaped cold-formed thin-walled steel simply-supported purline 1 and the purlin supporting plate during connection;

and S04, forming bolt holes in the thin steel plate 8, the upper L-shaped cold-bending thin-wall steel member 6 and the lower L-shaped cold-bending C thin-wall steel member 7, wherein the four bolt hole forming positions at the position overlapped with the original purlin supporting plate 2 correspond to the original bolt holes at the position. The bolt hole corresponding to the original angle brace position corresponds to the original bolt hole. The positions of the holes of the other newly added bolts 9 are determined according to the design.

S05: the original bolts 3 loosened at the joint of the original C-shaped cold-formed thin-wall section steel simple supporting purline 1 and the purline supporting plate 2 in the step S02 are screwed again, and the original bolts 3 loosened at the joint of the angle brace 5 and the original C-shaped cold-formed thin-wall section steel simple supporting purline 1 are screwed again;

s06: sequentially connecting and fixing the thin steel plate 8, the upper L-shaped cold-formed thin-walled steel member 6 and the lower L-shaped cold-formed thin-walled steel member 7 with the original C-shaped cold-formed thin-walled steel simply-supported purline 1 by using a newly-added bolt 9;

when in connection, the newly-added bolts are distributed on the upper part and the lower part of each section of the original C-shaped thin-walled cold-formed steel simply-supported purline, the distance between every two adjacent bolts on the upper part or the lower part is 80mm-100mm, and the distance between the end part of each bolt and the edge is 30mm-50 mm.

The connection reliability of the continuous purlines can be greatly improved by adopting the structural adhesive and the newly added bolts for double connection, the reinforcing length is long enough, and the reinforcing length can extend to the outside of the connection of the original simply-supported purlines and the angle braces, so that the continuity of the continuous purlines is ensured to the maximum extent; and the L-shaped cold-formed thin-walled steel member is smaller, so that the construction is very convenient in a limited space range, welding operation is not required in reinforcement construction, the on-site construction efficiency is improved, and good economic and social benefits are brought to the reinforcement construction of the steel structure roof.

The above is a detailed description of the present application with reference to specific preferred embodiments, and it should not be considered that the present application is limited to the specific embodiments, and it will be understood by those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the present application.

Claims (4)

1. The utility model provides a device that C shape thin-walled steel letter props purlin consolidates for continuous purlin, includes former C shape thin-walled steel letter prop (1), purlin layer board (2), original bolt (3), main girder steel (4) and corner brace (5), purlin layer board (2) are used for connecting former C shape thin-walled steel letter prop (1) and main girder steel (4) upper portion, original bolt (3) are used for connecting former C shape thin-walled steel letter prop (1) and purlin layer board (2), corner brace (5) are used for with former C shape thin-walled steel letter prop purlin (1) and main girder steel (4) sub-unit connection, its characterized in that: the steel plate reinforcing structure is characterized by further comprising an upper L-shaped cold-bending thin-wall steel member (6), a lower L-shaped cold-bending thin-wall steel member (7) and a thin steel plate (8), wherein the upper L-shaped cold-bending thin-wall steel member (6) and the lower L-shaped cold-bending thin-wall steel member (7) are respectively installed on the upper portion and the lower portion of the inner side of the original C-shaped cold-bending thin-wall steel simple supporting purline (1) and used for reinforcing two adjacent sections of original C-shaped cold-bending thin-wall steel simple supporting purlines (1) to form a continuous purline, and the thin steel plate (8) is installed on the inner side of a plane formed by the upper L-shaped cold-bending thin-wall steel member (6) and the lower L-shaped cold-bending thin-wall steel member (7) and used for further reinforcing the original C-shaped cold-bending thin-wall steel simple supporting purlines.

2. The device for reinforcing the simple purlines of the C-shaped cold-formed thin-wall steel into the continuous purlines according to the claim 1, is characterized in that: the upper L-shaped cold-formed thin-walled steel component (6) and the lower L-shaped cold-formed thin-walled steel component (7) are fixed to the upper portion and the lower portion of the inner side of the original C-shaped cold-formed thin-walled steel simple supporting purline (1) through structural adhesives, the thin steel plate (8) is fixed to the inner side of a plane formed by the upper L-shaped cold-formed thin-walled steel component (6) and the lower L-shaped cold-formed thin-walled steel component (7) through the structural adhesives, and then the thin steel plate (8), the upper L-shaped cold-formed thin-walled steel component (6) and the lower L-shaped cold-formed thin-walled steel component (7) are fixed to the original C-shaped cold-formed thin-walled steel simple supporting purline (1) sequentially through newly added bolts (9).

3. The device for reinforcing the simple purlines of the C-shaped cold-formed thin-wall steel into the continuous purlines according to the claim 2, is characterized in that: the total number of newly added reinforcing bolts of each section of original C-shaped cold-formed thin-wall steel simply-supported purline (1) is determined by calculation, the distance between every two adjacent bolts on the upper portion or the lower portion is 80-100 mm, and the distance between the end bolt and the edge is 30-50 mm.

4. The device for reinforcing the simple purlines of the C-shaped cold-formed thin-wall steel into the continuous purlines according to the claim 1, is characterized in that: the upper L-shaped cold-formed thin-walled steel member (6) and the lower L-shaped cold-formed thin-walled steel member (7) are as thick as the original C-shaped cold-formed thin-walled steel simply-supported purline (1), and the thin steel plate (8) is 2mm thick.

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