Brace connection reinforcing structure between purlins

Abstract

The utility model discloses a brace connection reinforcing structure between purlines, which relates to the field of constructional engineering and comprises purlines arranged at intervals and braces connecting adjacent purlines, each purline comprises a web and a flange, the braces penetrate through the web and are fixed through nuts, and a connection reinforcing plate is arranged between the nuts and the web. The connecting reinforcing plates are additionally arranged at the joints of the purlines and the braces, so that the flexural rigidity of purline webs can be improved, the lateral restraining effect of the braces on the purlines is enhanced, and a stable purline system is formed.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a brace connection reinforcement structure between purlins. Background Art

[0002] Purlins are commonly used in steel structure industrial plants. They can support roof panels and wall panels to transfer external loads to the main structure, and can also resist wind loads, etc. Bracing can prevent lateral deformation and torsion of purlins and provide an intermediate support point in the out-of-plane direction. It is an important measure to ensure the stability of purlins. Under the action of constant and live loads on the roof, the upper flange of the purlin will be compressed, and under the action of wind suction, the lower flange of the purlin will be compressed. Therefore, double-layer bracing is often set near the upper and lower flanges at 1 / 3 of the web height to improve the overall stability of the purlin system.

[0003] In the common parallel purlin system in actual engineering, the braces in adjacent purlins are usually offset by 30 to 50 mm. This makes this section of the purlin web part of the brace, and this part relies on the bending stiffness of the purlin web to transmit force, but the purlin web is usually 1.5 to 3 mm thick and has very low bending stiffness. The offset brace will interrupt the transmission of tension. In addition, the web will bulge outward and cause the brace to relax, which will no longer provide lateral support for the purlin. Utility Model Content

[0004] The utility model provides a brace connection reinforcement structure between purlins, which can improve the bending stiffness of the purlin web, strengthen the lateral restraining effect of the brace on the purlin, form a stable purlin system, and solve the problems of web bulging deformation and brace relaxation that may occur during the loading process of the purlin system.

[0005] The utility model is realized through the following technical solutions.

[0006] A purlin brace connection reinforcement structure comprises spaced purlins and braces connecting adjacent purlins, wherein the purlins comprise webs and flanges, the braces pass through the webs and are fixed by nuts, and a connection reinforcement plate is arranged between the nuts and the webs.

[0007] Furthermore, when a single purlin is passed through a tie rod, a flat connection reinforcement plate is arranged between the nut and the web. The flat connection reinforcement plate adopts a flat steel plate matrix, has a larger surface area than the nut, and is provided with a first elliptical hole.

[0008] Furthermore, when a single purlin is passed through two tension rods, a corrugated connection reinforcement plate is arranged between the nut and the web, and the corrugated connection reinforcement plate consists of a first fixed section, a connecting section and a second fixed section. The first fixed section and the second fixed section fit the web, and there is a certain gap between the connecting section and the web. The connecting section is higher than the first fixed section and the second fixed section, which is the crest of the wave. The first fixed section is flush with the second fixed section, which is the trough of the wave. The first fixed section and the second fixed section are provided with a second elliptical hole.

[0009] Furthermore, connecting reinforcement plates and nuts are provided on the inner side and the outer side of the web.

[0010] Furthermore, the position where the brace passes through the web does not exceed 1 / 3 of the height of the upper and lower flanges of the purlin.

[0011] The beneficial effects of the utility model are:

[0012] 1. Adding a connection reinforcement plate at the connection between the purlin and the tie rod can improve the bending stiffness of the purlin web, fully transfer the internal force of the tie rod, and exert its lateral restraint effect on the purlin.

[0013] 2. Choose two types of reinforcement plates: flat connection reinforcement plates and corrugated connection reinforcement plates. According to the number of holes on the purlin web, a flat connection reinforcement plate for one hole can effectively prevent the damage caused by concentrated stress at the connection. A corrugated connection reinforcement plate for two holes can improve the bending stiffness of the purlin web between the two holes and ensure the effective transmission of the tension of the tie rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the layout of the roof connecting purlins and braces;

[0015] Figure 2 for Figure 1 Section A: Sectional view;

[0016] Figure 3 This is a schematic diagram of the reinforcement structure of the brace connection between purlins in Example 1;

[0017] Figure 4 This is a schematic diagram of the reinforcement structure of the brace connection between purlins in Example 2;

[0018] Figure 5 This is a schematic diagram of the reinforcement structure of the brace connection between purlins in Example 3;

[0019] Figure 6 It is a schematic diagram of the flat connection reinforcement plate structure;

[0020] Figure 7 It is a schematic diagram of the structure of the corrugated connection reinforcement plate;

[0021] Figure 8 Schematic diagram of the purlin structure.

[0022] In the figure:

[0023] 1-steel beam; 2-purlin; 21-web; 22-flange; 3-tie rod; 4-nut; 5-flat connection reinforcement plate; 6-corrugated connection reinforcement plate; 51-flat steel plate mother body; 52-first elliptical hole; 61-first fixing section; 62-connecting section; 63-second fixing section; 64-second elliptical hole. DETAILED DESCRIPTION

[0024] The following is a further description of the structures involved in the present invention or the technical terms used. These descriptions are merely examples of how the present invention is implemented and do not constitute any limitation to the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1-8 As shown, this embodiment introduces a purlin tie rod connection reinforcement structure, which is described by taking the roof connection as an example.

[0028] like Figure 1 As shown, the steel beams 1 are laid in parallel at intervals, the purlins 2 are laid between the steel beams 1 , and the braces 3 are fixed between the purlins 2 . Figure 2 It is a schematic diagram of the structure in which the purlin 2 and the brace 3 are fixed on the steel beam 1.

[0029] like Figure 3-8 As shown, a purlin inter-bracing rod connection reinforcement structure includes spaced purlins 2 and braces 3 connecting adjacent purlins 2, the purlin 2 includes a web 21 and a flange 22, the braces 3 pass through the web 21 and are fixed by nuts 4, and a connecting reinforcement plate is provided between the nuts 4 and the web 21.

[0030] As an optional embodiment, when a single purlin 2 is penetrated with a tie rod 3, a flat connection reinforcement plate 5 is arranged between the nut 4 and the web 21. The flat connection reinforcement plate 5 is made of a flat steel plate matrix 51, the surface area of ​​which is larger than that of the nut 4, and a first elliptical hole 52 is opened, so that the height of the tie rod 3 can be adjusted. Figure 6 .

[0031] As an optional embodiment, when two braces 3 are passed through a single purlin 2, a corrugated connection reinforcement plate 6 is arranged between the nut 4 and the web 21. Specifically, the corrugated connection reinforcement plate 6 is composed of a first fixing section 61, a connecting section 62, and a second fixing section 63. The first fixing section 61 and the second fixing section 63 fit the web 21, and there is a certain gap between the connecting section 62 and the web 21. The connecting section 62 is higher than the first fixing section 61 and the second fixing section 63, which is a wave crest. The first fixing section 61 and the second fixing section 63 are flush, which is a wave trough. The first fixing section 61 and the second fixing section 63 are provided with a second elliptical hole 64, which can adjust the height of the brace 3, see Figure 7 .

[0032] As an optional embodiment, the inner side and the outer side of the web 21 are both provided with connecting reinforcement plates and nuts 4 .

[0033] As an optional embodiment, the position where the brace 3 passes through the web 21 does not exceed 1 / 3 of the height of the upper and lower flanges 22 of the purlin 2, see Figure 8 .

[0034] The connection forms of the purlin 2 and the brace 3 include:

[0035] Example 1

[0036] The purlins 2 are connected by two parallel braces 3 alternately arranged up and down. One hole is opened on the webs 21 of the purlins on both sides, and two holes are opened on the webs 21 of the middle purlin. The side purlins 2 with only one bolt hole are connected by a flat connection reinforcement plate 5, and the middle purlins 2 with two bolt holes are connected by a corrugated connection reinforcement plate 6. The opening positions on the webs 21 of the purlins are set at a height not exceeding 1 / 3 of the upper and lower flanges 22 of the purlins 2 according to the specification. Figure 3 .

[0037] Example 2

[0038] The purlins 2 are connected by two parallel braces 3, and two holes are opened on the purlin web 21. The purlins 2 and the braces 3 are connected by corrugated connection reinforcement plates 6, which effectively improves the bending stiffness of the purlin web 21 and improves the stress performance of the connection between the purlins 2 and the braces 3. Among them, the opening positions on the purlin web 21 are taken according to the specifications to be no more than 1 / 3 of the height of the upper and lower flanges 22 of the purlin 2. Figure 4 .

[0039] Example 3

[0040] The purlins 2 are connected by diagonal braces 3 pulling against each other from top to bottom. One hole is opened on the webs 21 of the purlins on both sides, and two holes are opened on the webs 21 of the middle purlin. The side purlins 2 with only one bolt hole are connected by a flat connection reinforcement plate 5, and the middle purlins 2 with two bolt holes are connected by a corrugated connection reinforcement plate 6. The opening positions on the webs 21 of the purlins are set at a height not exceeding 1 / 3 of the upper and lower flanges 22 of the purlins 2 according to the specification. Figure 5 .

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A purlin inter-bracing rod connection reinforcement structure, comprising purlins (2) arranged at intervals and braces (3) connecting adjacent purlins (2), wherein the purlins (2) comprise a web (21) and a flange (22), and the braces (3) pass through the web (21) and are fixed by nuts (4), characterized in that: A connecting reinforcement plate is arranged between the nut (4) and the web (21).

2. The purlin inter-bracing reinforcement structure according to claim 1, characterized in that: When a single purlin (2) is penetrated with a tie rod (3), a flat connection reinforcing plate (5) is arranged between the nut (4) and the web (21). The flat connection reinforcing plate (5) is made of a flat steel plate matrix (51) with a larger surface area than the nut (4) and a first elliptical hole (52).

3. The purlin inter-bracing reinforcement structure according to claim 1, characterized in that: When a single purlin (2) is penetrated by two tie rods (3), a corrugated connection reinforcement plate (6) is arranged between the nut (4) and the web (21), and the corrugated connection reinforcement plate (6) is composed of a first fixing section (61), a connection section (62) and a second fixing section (63). The first fixing section (61) and the second fixing section (63) are fitted to the web (21), and a certain gap is provided between the connection section (62) and the web (21). The connection section (62) is higher than the first fixing section (61) and the second fixing section (63), forming a wave crest, and the first fixing section (61) and the second fixing section (63) are flush, forming a wave trough, and the first fixing section (61) and the second fixing section (63) are provided with a second elliptical hole (64).

4. The purlin inter-bracing rod connection reinforcement structure according to claim 1, characterized in that: The inner side and the outer side of the web (21) are both provided with connecting reinforcing plates and nuts (4).

5. The purlin inter-bracing rod connection reinforcement structure according to claim 1, characterized in that: The position where the brace (3) passes through the web (21) does not exceed 1 / 3 of the height of the upper and lower flanges (22) of the purlin (2).

Images