CN213682537U - Connecting joint of double-spliced purline and purline supporting plate - Google Patents

Abstract

The utility model discloses a connecting node of double-spliced purlins and purlin supporting plates, which comprises a steel beam and a purlin assembly on the steel beam, wherein the purlin assembly comprises a front side C-shaped purlin and a rear side C-shaped purlin, and the back of the front side C-shaped purlin is connected with the back of the rear side C-shaped purlin; the steel beam is provided with a supporting plate, and the purline assembly is divided into a left side and a right side of the supporting plate; the back surfaces of the C-shaped purlins at the rear side of the purlin assemblies are connected with the supporting plates, mounting spaces are reserved among the C-shaped purlins at the front side of the purlin assemblies, and the supporting plates are positioned in the mounting spaces; through the purlin subassembly of C type purlin double-piecing together combination back to back, adopt the design that installation space connection layer board was left to front side C type purlin, the installation is simple and reduce the perforation requirement, just does not need on-the-spot reaming, improves the engineering quality.

Description

Connecting joint of double-spliced purline and purline supporting plate

Technical Field

The utility model relates to a building technical field, especially a connected node of doublet purlin and purlin layer board.

Background

The most commonly used purlins for light steel roofs are solid-web members, mainly straight-curled C-shaped and inclined-curled Z-shaped cold-bent thin-walled steel purlins. Because of the characteristics of C shaped steel purlin self to the simple beam is main stress state, often needs to adopt the double pin purlin form in order to satisfy intensity and stability requirement. According to the standard requirement, when the height-thickness ratio of the web plate of the purlin is greater than 200, the purlin supporting plate is required to be arranged to be connected with the web plate of the purlin to transfer force, and when the height-thickness ratio of the web plate is not greater than 200, the purlin supporting plate is not required to be arranged, but the local buckling pressure-bearing capacity of the purlin is required to be tested. Therefore, the connection mode mainly comprises the force transmission of the purlin pallets.

C shaped steel purlin can adopt back to back or mouthful pair mouthful double-pin mode, for guaranteeing the quality of double-pin purlin and avoiding on-the-spot high altitude welding, the purlin all uses mill or ground to piece together welding shaping in advance as leading, and present usual way adopts the long bolt to carry out perforation bolt with mouthful pair mouthful type double-pin purlin and purlin tray. However, due to the precision of hole making and the alignment degree of hole positions after double-splicing, the double-splicing purline is not high in perforation rate, the connection reliability cannot be guaranteed, and on-site temporary hole expanding also brings great hidden trouble to engineering quality.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a connected node of double-spliced purlin and purlin layer board.

The utility model provides a technical scheme that its technical problem adopted is: the connecting joint of the double-spliced purlins and the purlin supporting plates comprises a steel beam and a purlin assembly on the steel beam, wherein the purlin assembly comprises a front side C-shaped purlin and a rear side C-shaped purlin, and the back surface of the front side C-shaped purlin is connected with the back surface of the rear side C-shaped purlin; the steel beam is provided with a supporting plate, and the purline assembly is divided into a left side and a right side of the supporting plate; the back surface of the rear side C-shaped purline of the purline assembly is connected with the supporting plate, an installation space is reserved between the front side C-shaped purlines of the purline assembly, and the supporting plate is located in the installation space.

According to the utility model provides a connected node, through the purlin subassembly of C type purlin double-pin combination back to back, adopts front side C type purlin to reserve the design of installation space connection layer board, and the installation is simple and reduce the perforation requirement, just does not need on-the-spot reaming, improves the engineering quality.

As some preferred embodiments of the utility model, the girder steel with be provided with the reinforcing plate between the layer board, improve layer board structural strength.

As some preferred embodiments of the utility model, the rear side C type purlin back corresponds layer board position department is provided with the slot hole, be provided with the layer board mounting hole on the layer board, rear side C type purlin with pass through the bolt between the layer board the slot hole the layer board mounting hole is connected, and the mounted position of the purlin of being convenient for finely tunes.

The utility model has the advantages that: (1) the processing operation is simple, and the manufacturing cost is not additionally increased; (2) the bearing stress is reasonable, and the strength and the stability of the purline are not influenced; (3) the purlines are connected back to back by adopting common bolts, long-tooth bolts do not need to be specially customized, and the universality is stronger; (4) the bolt is simple to perforate, the construction difficulty is effectively reduced, and the installation speed is higher; (5) the on-site reaming phenomenon is greatly reduced, the node reliability is improved, and the installation quality is more guaranteed.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a front view of the present invention;

FIG. 2 is a right side view at position A in FIG. 1;

FIG. 3 is a right side view at position B in FIG. 1;

fig. 4 is an exploded view of the present invention.

Reference numerals: steel beam 100, purlin assembly 200, front side C-shaped purlin 210, rear side C-shaped purlin 220, installation space 230, supporting plate 300 and reinforcing plate 310.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the inventive subject matter may be implemented without these specific details, i.e., those skilled in the art will be able to more effectively describe the nature of their work to others skilled in the art using the description and illustrations herein. Furthermore, it should be noted that the terms "front side", "rear side", "left side", "right side", "upper side", "lower side", and the like used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a specific part, respectively, and those skilled in the art should not understand that the technology beyond the scope of the present application is simply and innovatively adjustable in the directions. It should be understood that the specific embodiments described herein are merely illustrative of the present application and do not limit the scope of the actual protection. Well-known manufacturing methods, control procedures, component dimensions, material compositions, pipe arrangements, etc., have not been described in detail since they are readily understood by those of ordinary skill in the art, in order to avoid obscuring the present invention.

According to the simply supported stress characteristics of the double-spliced C-shaped steel purlines, the maximum bending moment of the purlines appears at the middle-crossing position, the maximum shearing force appears at the position of the support (namely, the purline support), under the same load and constraint condition, the middle-crossing bending moment has a control effect on the bending strength and the stability of the purlines, the support shearing force has a control effect on the shearing strength of the purlines, and the shearing capacity of the purlines is directly related to the straightness height and the purline thickness of the purlines after the cold bending radius is deducted from the web plates of the purlines.

Fig. 1 is a front view of an embodiment of the present invention, referring to fig. 1, an embodiment of the present invention provides a joint of a double-spliced purlin and a purlin pallet, including a steel beam 100 and a purlin assembly 200 on the steel beam 100. Referring to fig. 2 and 3, purlin assembly 200 includes a front C-purlin 210 and a rear C-purlin 220. The back of the front C-shaped purlin 210 is connected with the back of the rear C-shaped purlin 220, that is, the front and rear C-shaped purlins are combined in a back-to-back double-splicing manner (the open side of the C-shaped purlin is used as the front), and the purlin assembly 200 is formed by welding or other connection methods.

The specific shapes of the front side C-shaped purlin 210 and the rear side C-shaped purlin 220 refer to the existing C-shaped purlin, wherein the C-shaped purlin comprises flanges on the upper side and the lower side and a middle plate.

The steel beam 100 is provided with a supporting plate 300, and the purlin assembly 200 is divided into left and right sides of the supporting plate 300. The pallet 300 acts as a direct connection between the purlins and steel beams. The connection between the pallet 300 and the steel beam 100 may be achieved by welding, bolts or other prior art. The specific shape and size of the pallet 300 are not limited herein, and reference can be made to the steel structure roofing technology in the prior art.

Referring to fig. 2, the back surfaces of the rear C-shaped purlins 220 of the purlin assemblies 200 are connected with the supporting plates 300, mounting spaces 230 are reserved among the front C-shaped purlins 210 of the purlin assemblies 200, and the supporting plates 300 are located in the mounting spaces 230, so that the purlin structures can be conveniently mounted on site. The installation space 230 of the front-side C-shaped purline 210 can be cut off through site construction, can be cut off before the purline leaves a factory, and can be reserved as required during manufacturing of the purline.

The novel connecting joint structure has reasonable stress, simple processing operation, more convenient construction and faster installation speed, fully ensures the optimization of cost, efficiency and quality, and has better popularization and application values.

Reference will now be made in detail to some embodiments, wherein "an embodiment" is referred to herein as a particular feature, structure, or characteristic that may be included in at least one implementation of the present application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Furthermore, the details of one or more embodiments are not fixedly presented in any particular order, and are not intended to limit the invention.

Example 1 referring to fig. 1, a steel beam 100 is an i-beam and extends in front and rear side directions. The pallet 300 is vertically installed on the upper side of the steel beam 100. Purlin assemblies 200 are attached to the left and right sides of pallet 300.

The connection between the upper side of the steel beam 100 and the lower side of the pallet 300 is not limited herein.

In embodiment 2, the reinforcing plate 310 is disposed between the steel beam 100 and the supporting plate 300, so as to improve the structural strength of the supporting plate 300.

In embodiment 3, the back surface of the rear C-shaped purlin 220 is provided with an elongated hole corresponding to the position of the supporting plate 300, the supporting plate 300 is provided with a supporting plate mounting hole, and the rear C-shaped purlin 220 and the supporting plate 300 are connected by a bolt passing through the elongated hole and the supporting plate mounting hole. That is, the mounting holes of the rear C-purlins 220 are elongated holes, and the mounting hole shape of the pallet 300 is not limited. The long hole design of the rear side C-shaped purline 220 is convenient for the distance between the purline assemblies 200 to be finely adjusted, and the purline installation effect is further ensured. For example, in this embodiment, the elongated holes of the rear C-purlins 220 have a diameter extending along the horizontal direction, so that the rear C-purlins 220 can be finely adjusted along the horizontal direction.

Example 4, the purline of C-section steel includes a web, an upper flange, a lower flange, and a web, an upper flange, and a lower flange. During on-site construction, referring to fig. 4, the front side C-shaped purlins 210 and the rear side C-shaped purlins 220 are spliced into the purlin assembly 200, the purlin assembly 200 is horizontally arranged on the left side and the right side of the supporting plate 300, then the web, the upper flange and the lower flange of the front side C-shaped purlins 210 close to the direction of one side of the supporting plate 300 are cut off, a space is left between the front side C-shaped purlins 210 to correspond to the supporting plate 300, and then the supporting plate 300 is connected with the common rear side C-shaped purlins 220 through bolts.

In example 5, during field construction, the purlin assembly 200 in the form of back-to-back double-spliced C-shaped steel purlins is used, the upper and lower flanges of the front C-shaped purlin 210 directly connected to the pallet 300 are cut off by 50mm (the web is not cut) to serve as an installation space 230, the rear C-shaped purlin 220 is kept unchanged, other holes are formed according to design, and finally the rear C-shaped purlin 220 and the pallet 300 are bolted through common bolts. On the premise of connecting with the screw hole of the rear side C-shaped purlin 220, the common bolt can penetrate through the web of the front side C-shaped purlin 210 which is not cut off, and also can not penetrate through the web of the front side C-shaped purlin 210 which is not cut off.

According to the above principle, the present invention can also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention.

Claims (3)

1. The utility model provides a connected node of doublet purlin and purlin layer board which characterized in that: the steel beam-reinforced purlin assembly (200) comprises a steel beam (100) and purlin assemblies (200) on the steel beam (100), wherein each purlin assembly (200) comprises a front-side C-shaped purlin (210) and a rear-side C-shaped purlin (220), and the back surfaces of the front-side C-shaped purlins (210) and the back surfaces of the rear-side C-shaped purlins (220) are connected;

the steel beam (100) is provided with a supporting plate (300), and the purline assembly (200) is arranged on the left side and the right side of the supporting plate (300) in a row;

the back surface of a C-shaped purline (220) at the rear side of the purline assembly (200) is connected with the supporting plate (300), an installation space (230) is reserved between the C-shaped purlines (210) at the front side of the purline assembly (200), and the supporting plate (300) is located in the installation space (230).

2. The connecting node of a purlin of double pin and purlin tray of claim 1, characterized in that: a reinforcing plate (310) is arranged between the steel beam (100) and the supporting plate (300).

3. The connecting node of a purlin of double pin and purlin tray of claim 1, characterized in that: the back of the rear side C-shaped purline (220) is provided with a long hole corresponding to the position of the supporting plate (300), the supporting plate (300) is provided with a supporting plate mounting hole, and the rear side C-shaped purline (220) and the supporting plate (300) are connected through the long hole and the supporting plate mounting hole through bolts.

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