Purline wind-resistant assembly of light steel building and light steel building

Abstract

The invention relates to a purline wind-resistant structure of a light steel building and the light steel building. The purline wind-resistant assembly of the light steel building comprises a plurality of purlines, connecting pieces and prestressed steel strands, the purlines are arranged at intervals, one sides of the purlines are used for being arranged on the light steel building, the connecting pieces are arranged on the other sides of the purlines, and the extending direction of the prestressed steel strands is perpendicular to the extending direction of the purlines. The prestressed steel strands are connected with the multiple connecting pieces located on the same straight line, and the prestressed steel strands are fixedly connected with the light steel building and form prestress. Prestress is applied to the pressure side of the purline through the purline wind-resistant assembly, lateral displacement and torsion of the purline under the wind load suction working condition can be prevented, the stability of the purline under the extreme wind load is ensured, construction operation is easy, and the purline wind-resistant assembly is suitable for newly-built and built light steel buildings and has a wide application prospect. Complexity and high cost of a purline reinforcing mode in related technologies can be avoided, rapid reinforcing can be achieved, the wind resistance of the light steel building is improved, and disaster loss is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of light steel maintenance, and particularly relates to a purlin wind resistance structure for a light steel building and a light steel building. Background Art

[0002] In the field of light steel frame structure buildings in the civil engineering industry, purlins are prone to lateral displacement and torsion under the suction condition of wind loads, resulting in the separation of the roof panel from the purlin. In related technologies, the wind resistance ability is improved by setting tension bars or increasing the cross-section of the purlins, but there are problems such as complex construction, high cost, and difficulty in strengthening existing structures. Especially in typhoon-prone areas, the structural stability requirements under extreme wind loads cannot be met. Summary of the Invention

[0003] The present invention is based on the inventor's discovery and recognition of the following facts and problems:

[0004] For purlins in a light steel maintenance system, tension bars are usually set at the upper 1 / 3 of the purlin. Under the suction condition of wind loads, the lower flange of the purlin is compressed, and instability will occur, causing lateral displacement and torsion of the purlin and the separation of the panel from the purlin. Especially during typhoon weather, the wind loads of typhoons are generally greater than the basic wind pressures required by the specifications, resulting in the instability failure of the compressed flange of the purlin and causing property losses and casualties.

[0005] In related technologies, the stiffness is increased by increasing the cross-section of the purlin or double tension bars are set at the lower 1 / 3 of the lower flange of the purlin to prevent the instability of the lower flange of the purlin. However, increasing the purlin will cause economic waste. Adding tension bars at the lower part is more cumbersome in construction, the construction quality is not easy to control, and for the renovation of existing factories, it is impossible to add lower tension bars. However, even with the use of lower flange tension bars, it is still difficult to prevent the lateral displacement and torsion of the compressed flange of the purlin when the typhoon exceeds level 15.

[0006] The present invention aims to solve at least one of the technical problems in related technologies to a certain extent.

[0007] To this end, an embodiment of the present invention provides a purlin wind resistance component, which can improve the wind resistance performance of a light steel building, has the advantages of simple construction, economical cost, being applicable to new and existing light steel buildings, and is particularly suitable for the wind resistance reinforcement requirements in typhoon-prone areas.

[0008] An embodiment of the present invention also provides a light steel building.

[0009] The purlin wind resistance component of a light steel building according to an embodiment of the present invention includes a plurality of purlins, connecting members, and prestressed steel strands. The plurality of purlins are arranged at intervals. One side of the purlin is used to be provided on the light steel building. The connecting member is provided on the other side of the purlin. The extending direction of the prestressed steel strand is perpendicular to the extending direction of the purlin. The prestressed steel strand connects a plurality of the connecting members located on the same straight line. The prestressed steel strand is fixedly connected to the light steel building and forms prestress.

[0010] The purlin wind resistance component of the embodiment of the present invention applies prestress to the pressure side of the purlin, which can prevent the lateral displacement and torsion of the purlin under the wind load suction condition, ensure the stability of the purlin under extreme wind loads, and has simple construction operations. It is applicable to newly built and existing light steel buildings, can avoid the complexity and high cost of the purlin reinforcement method in the related art, can achieve rapid reinforcement, improve the wind resistance of the light steel building, and reduce disaster losses.

[0011] In some embodiments, the purlin is a roof purlin. The roof purlin is provided on the roof panel of the light steel building. The connecting member is provided on the lower flange of the roof purlin.

[0012] In some embodiments, the end of the prestressed steel strand is connected to the steel beam of the light steel building.

[0013] In some embodiments, the purlin is a wall purlin. The wall purlin is provided on the wall panel of the light steel building. The connecting member is provided on the inner flange of the wall purlin.

[0014] In some embodiments, one end of the prestressed steel strand is connected to the steel beam of the light steel building, and the other end of the prestressed steel strand is connected to the foundation or ground foundation of the light steel building.

[0015] In some embodiments, the connecting member has a connecting surface, and the connecting surface fits with the other side of the purlin.

[0016] In some embodiments, the connecting member includes a clamp and a connecting plate. The clamp has a fixing hole, the steel strand is located in the fixing hole, one side of the connecting plate is connected to the clamp, and the other side of the connecting plate fits with the other side of the purlin.

[0017] In some embodiments, the connecting plate is welded to the purlin.

[0018] A light steel building according to an embodiment of the present invention includes a main body and the purlin wind resistance component described above. The purlin is provided on the main body, and the prestressed steel strand is fixedly connected to the main body. Description of the Drawings

[0019] Figure 1 One of the schematic diagrams of the purlin wind-resistant component of the roof part in the embodiment of the present invention;

[0020] Figure 2 Another schematic diagram of the purlin wind-resistant component of the roof part in the embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the structure of the purlin wind-resistant component of the roof part and the steel beam at one end of the prestressed steel strand in the embodiment of the present invention;

[0022] Figure 4 Schematic diagram of the connection structure between the prestressed steel strand and the steel beam;

[0023] Figure 5 Schematic diagram of the purlin wind-resistant component of the wall part in the embodiment of the present invention.

[0024] Reference numerals:

[0025] Purlin wind-resistant components 100, 1. Purlin, 2. Prestressed steel strand, 3. Connector, 31. Clip, 32. Connection plate, 200. Roof panel, 300. Wall panel, 400. Steel beam, 500. Foundation. Detailed implementation manners

[0026] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0027] Below, with reference to the attached Figures 1 to 5 The purlin wind-resistant component 100 of the light steel building and the light steel building in the embodiment of the present invention will be described in detail.

[0028] The light steel building in the embodiment of the present invention includes a main body and a purlin wind-resistant component 100. The purlin 1 is arranged on the main body, and the prestressed steel strand 2 is fixedly connected to the main body.

[0029] The purlin wind-resistant component 100 of the light steel building in the embodiment of the present invention includes a plurality of purlins 1, connectors 3 and prestressed steel strands 2. The plurality of purlins 1 are arranged at intervals. One side of the purlin 1 is arranged on the main body of the light steel building, and the connector 3 is arranged on the other side of the purlin 1. The extending direction of the prestressed steel strand 2 is perpendicular to the extending direction of the purlin 1. The prestressed steel strand 2 connects a plurality of connectors 3 located on the same straight line, and both ends of the prestressed steel strand 2 are fixed on the main body of the light steel building to form prestress.

[0030] One side of the purlin 1 is arranged on the main body of the light steel building, and the other side of the purlin 1 bears the wind load and is in compression under the working condition of wind load suction, that is, the other side of the purlin 1 is the compression side. The prestressed steel strand 2 is connected to the compression side of the purlin 1 through the connector 3 and forms prestress, so as to apply prestress to the compression side of the purlin 1, so that the compression side of the purlin 1 is subjected to a binding force opposite to the pressure formed by the wind load, adjust the force of the purlin 1, and when the purlin 1 encounters the wind load, the binding force can offset part of the suction force formed by the wind load, and then effectively prevent the lateral displacement and torsion of the purlin 1 under the wind load suction working condition, and ensure that the purlin 1 remains stable under the wind load working condition.

[0031] At the same time, the prestress applied to the prestressed steel strand 2 can be adjusted, so that the force of the purlin 1 can be adjusted to meet the requirements under different wind load working conditions, and the flexibility and adaptability of the purlin wind resistance component 100 are improved.

[0032] Moreover, for the maintenance system of the existing light steel building, the purlin 1 is the existing one in the light steel building. On the basis of the existing purlin 1, the connector 3 is arranged on the other side of the purlin 1, and then the prestressed steel strand 2 and multiple connectors 3 on the same straight line are connected and prestressed to realize the wind resistance reinforcement of the purlin 1. The reinforcement process has less modification to the light steel building, does not need to remove or replace the purlin, has low reinforcement cost and is easy to operate. It is especially suitable for the maintenance system of light steel buildings in typhoon areas and can quickly complete the reinforcement before the typhoon comes, reducing the losses caused by the typhoon.

[0033] Therefore, the purlin wind resistance component 100 of the embodiment of the present invention applies prestress to the pressure side of the purlin 1, can prevent the lateral displacement and torsion of the purlin 1 under the wind load suction working condition, ensure the stability of the purlin 1 under extreme wind loads, and has simple construction operation. It is suitable for new and existing light steel buildings, can avoid the complexity and high cost of the purlin reinforcement method in the related technology, can realize rapid reinforcement, improve the wind resistance ability of the light steel building, and reduce disaster losses.

[0034] Specifically, the light steel building has a roof panel 200, a wall panel 300 and a steel beam 400.

[0035] As Figures 1 to 3 shown, for the roof panel 200, multiple purlins 1 on the roof panel 200 are roof purlins 1. The upper side of the roof purlin 1 is connected to the roof panel 200, and the lower side, that is, the lower flange, of the roof purlin 1 is its compression side, and the connector 3 is arranged on the lower flange of the roof purlin 1. The end of the prestressed steel strand 2 is connected to the steel beam 400 of the light steel building.

[0036] The implementation process of the purlin wind resistance component 100 on the roof panel 200 is as follows:

[0037] Step 1: Install the roof purlin 1: Install the roof purlin 1 onto the roof panel 200 of the light steel structure according to the installation design requirements, ensuring that the position and elevation of the roof purlin 1 comply with the design specifications.

[0038] Step 2: Fix the prestressed steel strand 2: Fix the two ends of the prestressed steel strand 2 to two steel beams 400 respectively, as Figure 4 shown.

[0039] Step 3: Connect the prestressed steel strand 2 and the roof purlin 1: Use the connector 3 to connect the prestressed steel strand 2 and the lower flange of the roof purlin 1.

[0040] Step 4: Apply prestress to the prestressed steel strand 2 so that the lower flange of the roof purlin 1 is subjected to a reverse restraint force. Among them, the specific value of the applied prestress can be calculated and determined according to the actual working conditions.

[0041] It should be noted that for existing light steel buildings, Step 1 is not required, and the implementation steps are carried out according to Steps 2 to 4.

[0042] The lower flange of the roof purlin 1 is fixedly connected to the steel beam 400 through the prestressed steel strand 2 and the connector 3, and can prevent the lateral displacement and torsion of the compression flange on the lower side of the purlin 1 after applying prestress, thereby improving the stability of the roof part of the light steel building under the action of wind suction.

[0043] For the wall panel 300, as Figure 5 shown, multiple purlins 1 on the wall panel 300 are wall purlins 1. The outer side of the wall purlin 1 is connected to the wall panel 300, and the inner side, that is, the inner flange, of the wall purlin 1 is its compression side, and the connector 3 is arranged on the inner flange of the wall purlin 1. One end (upper end) of the prestressed steel strand 2 is connected to the steel beam 400 of the light steel building, and the other end (lower end) of the prestressed steel strand 2 is connected to the foundation 500 of the light steel building or the ground foundation 500.

[0044] The implementation process of the purlin wind resistance component 100 on the wall panel 300 is as follows:

[0045] Step 1: Install the wall purlin 1: Install the wall purlin 1 onto the wall panel 300 of the light steel structure according to the installation design requirements, ensuring that the position and elevation of the roof purlin 1 comply with the design specifications.

[0046] Step 2: Fix the prestressed steel strand 2: Fix the upper end of the prestressed steel strand 2 to the steel beam 400 at the upper part of the light steel building, and fix the lower end of the prestressed steel strand 2 to the foundation 500 of the light steel building or the ground foundation 500.

[0047] Step 3: Connect the prestressed steel strand 2 and the wall purlin 1: Use the connector 3 to connect the prestressed steel strand 2 and the inner flange of the roof purlin 1.

[0048] Step 4: Apply prestress to the prestressed steel strand 2 so that the inner flange of the wall purlin 1 is subjected to a reverse restraint force. The specific value of the applied prestress can be calculated and determined according to the actual working conditions.

[0049] It should be noted that for existing light steel buildings, step 1 is not required, and the implementation steps are carried out according to steps 2 to 4.

[0050] The inner flange of the wall purlin 1 is fixed to the upper steel beam 400 and the lower foundation 500 through the prestressed steel strand 2 and the connecting piece 3. After applying prestress, it can prevent the lateral displacement and torsion of the inner compression flange of the purlin 1, thereby improving the stability of the wall part under the action of wind suction.

[0051] The connecting piece 3 has a connecting surface, and the connecting surface fits with the other side of the purlin 1. Then, the connecting piece 3 and the other side of the purlin 1 have a certain contact area, ensuring the connection strength and stability between the connecting piece 3 and the purlin 1, and ensuring the effective transmission of prestress and the overall stability of the structure.

[0052] Specifically, the connecting piece 3 includes a clamp 31 and a connecting plate 32. The clamp 31 has a fixing hole, and the steel strand 2 is located in the fixing hole. One side of the connecting plate 32 is connected to the clamp 31, and the other side of the connecting plate 32 fits with the other side of the purlin 1. The connecting plate 32 has a large plane, that is, the area of the connecting surface is large, which is beneficial to improving the connection strength and stability between the connecting piece 3 and the purlin 1.

[0053] Specifically, the connecting plate 32 is welded to the purlin 1, so there is no need to drill holes in the purlin 1, the structural modification of the purlin 1 itself is small, and the construction operation steps can be saved.

[0054] Therefore, the light steel building of the embodiment of the present invention can effectively prevent the lateral displacement and torsion of the purlin 1 under the wind load and wind suction conditions, and has good stability under the wind load conditions.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0056] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0059] In the present invention, terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0060] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A purlin wind resistance component (100) for a light steel building, characterized in that, Comprising: A plurality of purlins (1), the plurality of purlins (1) being arranged at intervals, one side of the purlin (1) being adapted to be provided on the light steel building; A connecting member (3), the connecting member (3) being provided on the other side of the purlin (1); A prestressed steel strand (2), the extending direction of the prestressed steel strand (2) being perpendicular to the extending direction of the purlin (1), the prestressed steel strand (2) connecting a plurality of the connecting members (3) located on the same straight line, and the prestressed steel strand (2) being fixedly connected to the light steel building and forming prestress.

2. The purlin wind resistance assembly (100) of the light steel building according to claim 1, characterized in that, The purlin (1) is a roof purlin (1), the roof purlin (1) being provided on the roof panel (200) of the light steel building, and the connecting member (3) being provided on the lower flange of the roof purlin (1).

3. The purlin wind resistance assembly (100) of the light steel building according to claim 2, characterized in that, The end of the prestressed steel strand (2) is connected to the steel beam (400) of the light steel building.

4. The purlin wind resistance assembly (100) of the light steel building according to claim 1, characterized in that, The purlin (1) is a wall purlin (1), the wall purlin (1) being provided on the wall panel (300) of the light steel building, and the connecting member (3) being provided on the inner flange of the wall purlin (1).

5. The purlin wind resistance assembly (100) of the light steel building according to claim 4, characterized in that, One end of the prestressed steel strand (2) is connected to the steel beam (400) of the light steel building, and the other end of the prestressed steel strand (2) is connected to the foundation (500) or the ground foundation (500) of the light steel building.

6. The purlin wind resistance assembly (100) of the light steel building according to claim 1, characterized in that, The connecting member (3) has a connecting surface, and the connecting surface is in contact with the other side of the purlin (1).

7. The purlin wind resistance assembly (100) of the light steel building according to claim 6, characterized in that, The connecting member (3) includes a clip and a connecting plate. The clip has a fixing hole, the steel strand is located in the fixing hole, one side of the connecting plate is connected to the clip, and the other side of the connecting plate is in contact with the other side of the purlin (1).

8. The purlin wind resistance assembly (100) of the light steel building according to claim 7, characterized in that, The connecting plate is welded to the purlin (1).

9. A light steel building, characterized in that, Comprising a body and a purlin wind resistance assembly (100) according to any one of claims 1 to 8, the purlin (1) being provided on the body, and the prestressed steel strand (2) being fixedly connected to the body.

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