Large-span truss system

Abstract

The utility model discloses a large-span truss system which comprises a plurality of truss units which are arranged at intervals in the first direction. Each truss unit comprises a cross beam and a stabilizing structure, each stabilizing structure comprises a first supporting piece, a second supporting piece and a plurality of pull rods, and the first supporting pieces and the second supporting pieces extend in the second direction and are arranged at the bottoms of the cross beams. The second supporting pieces are arranged on the two sides of the first supporting piece in the third direction respectively. The pull rods are arranged between the first supporting piece and the second supporting piece and between the second supporting piece and the cross beam respectively. The first supporting piece and the second supporting piece extend in the second direction and are arranged at the bottom of the cross beam, powerful bottom supporting is provided for the cross beam, and the pull rod effectively disperses and transmits loads through triangular stable structures formed between the first supporting piece and the second supporting piece and between the second supporting piece and the cross beam. And stress concentration of local components is reduced, so that the stability of the whole truss system is improved.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, specifically to a large-span truss system. Background Technology

[0002] Trusses generally use welding as the connection method for beams and web members. Due to their large span, large-span steel trusses have very large negative bending moments at the ends. The connection nodes are prone to local stress concentration caused by dense welding, which in turn affects the overall structural strength of the truss and reduces the overall structural strength of the truss beam. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a large-span truss system to solve the problem of low strength at the connection nodes caused by the large span of the large-span truss mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is a large-span truss system, comprising:

[0005] Multiple truss units are spaced apart along a first direction. Each truss unit includes a beam and a stabilizing structure. The stabilizing structure includes a first support member, a second support member, and multiple tie rods. The first and second support members extend along a second direction and are located at the bottom of the beam. The second support members are respectively located on both sides of the first support member along a third direction. The multiple tie rods are respectively located between the first and second support members, and between the second support member and the beam. The first, second, and third directions are perpendicular to each other.

[0006] This utility model provides a large-span truss system, in which each truss unit is equipped with a stabilizing structure, including a first support member, a second support member, and multiple tie rods. The first and second support members extend along a second direction and are located at the bottom of the crossbeam, providing strong bottom support for the crossbeam. The tie rods effectively distribute and transfer loads by forming a triangular stabilizing structure between the first and second support members and between the second support member and the crossbeam, reducing the stress concentration of local components, thereby improving the stability of the entire truss system.

[0007] In some embodiments, the first support member and the second support member are provided with first concave slides extending along the second direction at both ends along the third direction, and the bottom of the crossbeam is provided with a second concave slide extending along the third direction. The first concave slides and the second concave slides are positioned correspondingly, and both are provided with an extension connection at the top.

[0008] In some embodiments, the stabilizing structure further includes multiple reinforcing members, which are respectively disposed on both sides of the connection between the first support member and the crossbeam along the third direction, and on both sides of the connection between the second support member and the crossbeam along the third direction. Each reinforcing member includes two right-angle fixing plates, which are stacked along the first direction, with their right-angled sides respectively connected to the crossbeam, the first support member, or the second support member.

[0009] By employing the above technical solution, reinforcing members are installed on both sides along a third direction at the connection points between the first support member and the crossbeam, and at the connection points between the second support member and the crossbeam. These reinforcing members effectively enhance the strength and rigidity of the connection points. The design of the right-angle fixing plate allows its right-angled sides to connect to the crossbeam, the first support member, or the second support member, forming a stable triangular structure capable of withstanding large loads and stresses.

[0010] In some embodiments, each of the two right-angled sides of the right-angled fixing plate has a stepped portion, and the stepped portion has a groove arranged parallel to the corresponding right-angled side. The grooves in the two right-angled fixing plates are arranged oppositely along the first direction, and are used to engage and fix the right-angled fixing plates to the first concave slide rail and the second concave slide rail respectively. The inclined side of the right-angled fixing plate has multiple fixing holes and a first mounting through hole, which are used to connect and fix the two right-angled fixing plates in the multiple fixing holes by bolts.

[0011] Using the above technical solution, the two right-angled sides of the right-angled fixing plate are provided with stepped portions and grooves. These grooves are used to engage and fix the plate to the extended connecting portion. This design makes the connection between the right-angled fixing plate and the first and second concave sliding tracks more robust and stable. The combined use of fixing holes and bolts allows the right-angled fixing plates to be tightly fixed together, forming a stable triangular structure. When subjected to large loads, the tightly connected right-angled fixing plates can better distribute and transfer the load, avoiding overloading and damage to local components.

[0012] In some embodiments, the first support member is located at the midpoint of the crossbeam along the third direction. The bottom of the first support member has a first connecting block, and the bottom of the second support member has a second connecting block. A tie rod located between the first and second support members is connected between the first and second connecting blocks, and between the first mounting through hole and the first connecting block, respectively.

[0013] With the above technical solution, the first support member is located at the midpoint of the crossbeam along the third direction, and the second support member is located on both sides of the first support member. This layout allows the support members to more reasonably distribute the load between the crossbeam and the column, avoiding local overload.

[0014] In some embodiments, the stabilizing structure further includes two connectors located on the side of the second support member away from the first support member, with their tops connected to the crossbeam. Each connector has grooves on both sides along the first direction, extending along the third direction for engaging with an extended connecting portion within the first concave slide rail. Each connector includes two connecting pieces stacked along the first direction. The grooves are located near the top of the connecting pieces, and a second mounting through hole and multiple connecting holes are provided below the grooves. A tie rod located between the second support member and the crossbeam connects the second mounting through hole and the second connecting block. The multiple connecting holes are used to connect and fix the two connecting pieces using bolts.

[0015] Using the above technical solution, the connector includes two connecting pieces stacked along the first direction. The stacked connecting pieces can jointly bear the load, disperse stress, reduce the stress concentration of a single connecting piece, and enable the connector to bear a larger load, thereby improving the load-bearing capacity of the connector.

[0016] In some embodiments, the truss unit further includes columns and a plurality of connecting rods. The columns extend along the second direction and are respectively disposed at both ends of the crossbeams along the third direction. The plurality of connecting rods are respectively disposed at the connection points between the crossbeams and the columns, and each connecting rod extends along the first direction for connecting adjacent crossbeams.

[0017] By adopting the above technical solution, the column, as the main load-bearing component, can provide strong support for the beam, enhance the overall stability of the structure, effectively bear and transfer the load on the beam, and reduce the bending deformation and torsion of the beam.

[0018] In some embodiments, the stabilizing structure further includes angle steel, which is connected to the crossbeam and the column respectively. The column has third concave slides extending along the second direction on both sides along the third direction, the third concave slides corresponding to the second concave slides, and the top has the extended connecting portion. The angle steel has fixing grooves on both sides along the first direction for engaging and fixing to the first and third concave slides. The connecting member is located between the second support member and the column, and is positioned close to the angle steel.

[0019] Using the above technical solution, the angle steel is connected to the beams and columns respectively. The high strength and good connection performance of the angle steel can significantly improve the connection stability of the structure.

[0020] In some embodiments, the stabilizing structure further includes a plurality of limiting plates and a plurality of fixing screws. The plurality of limiting plates extend along the third direction and are respectively disposed on the side of the connector facing the first support member along the third direction, and on the side of the second support member facing the first support member along the third direction. The plurality of fixing screws are used to fix the plurality of limiting plates to the bottom of the crossbeam.

[0021] By adopting the above technical solution, by setting the limiting plates on the side of the connector and the second support facing the first support, the displacement and rotation of the connector and the second support in the third direction are restricted, thereby improving the overall stability of the structure. Attached Figure Description

[0022] Figure 1 This is a three-dimensional embodiment of a large-span truss system according to the present invention. Figure 1 ;

[0023] Figure 2 This is a three-dimensional embodiment of a large-span truss system according to the present invention. Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of a beam in an embodiment of a large-span truss system according to the present invention;

[0025] Figure 4 This is a perspective view of a right-angle fixing plate according to an embodiment of a large-span truss system of the present invention;

[0026] Figure 5 This is a schematic diagram of the connecting piece of an embodiment of a large-span truss system according to the present invention;

[0027] Figure 6 This is a partial structural schematic diagram of an embodiment of a large-span truss system according to the present invention;

[0028] In the picture:

[0029] 1. Truss unit;

[0030] 2. Crossbeam; 20. Second concave slide rail; 21. Extension connection part;

[0031] 30. First support member; 300. First connecting block; 31. Second support member; 310. Second connecting block; 32. First concave slide rail; 33. Pull rod;

[0032] 4. Reinforcing member; 40. Right-angle fixing plate; 41. Stepped section; 42. Slide groove;

[0033] 5. Connector; 50. Connecting piece; 51. Groove;

[0034] 6. Column; 60. Connecting rod; 61. Reinforcing plate.

[0035] 7. Angle steel;

[0036] 8. Limiting plate; 80. Fixing screws. Detailed Implementation

[0037] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0038] refer to Figures 1 to 6 , Figure 1 This invention illustrates a three-dimensional representation of a large-span truss system according to an embodiment of the present invention. Figure 1 ; Figure 2 This invention illustrates a three-dimensional representation of a large-span truss system according to an embodiment of the present invention. Figure 2 ; Figure 3 This shows a cross-sectional view of a beam 2 in a large-span truss system provided by an embodiment of the present invention; Figure 4 A perspective view of a right-angle fixing plate 40 in a large-span truss system provided by an embodiment of the present invention is shown; Figure 5 This diagram illustrates the structure of a connecting piece 50 in a large-span truss system according to an embodiment of the present invention. Figure 6 A partial structural schematic diagram of a large-span truss system provided in an embodiment of this utility model is shown.

[0039] like Figures 1 to 6 As shown, the technical solution provided in this application is a large-span truss system, including multiple truss units 1, wherein the multiple truss units 1 are arranged along a first direction ( Figure 2 (As shown in the Y direction) The truss units 1 are spaced apart. Each truss unit 1 includes a beam 2 and a stabilizing structure. The stabilizing structure includes a first support member 30, a second support member 31, and multiple tie rods 33. The first support member 30 and the second support member 31 are both along the second direction (as shown in the Y direction). Figure 2 Extending along the Z-direction (as shown in the middle), and located at the bottom of the crossbeam 2. The second support member 31 is respectively located on the first support member 30 along the third direction (as shown in the middle Z-direction). Figure 2 On both sides (as shown in the X direction). Multiple tie rods 33 are respectively located between the first support member 30 and the second support member 31, and between the second support member 31 and the crossbeam 2, with the first direction, the second direction and the third direction being perpendicular to each other.

[0040] This application provides a large-span truss system, in which each truss unit 1 is equipped with a stabilizing structure, including a first support member 30, a second support member 31, and multiple tie rods 33. The first support member 30 and the second support member 31 extend along a second direction and are located at the bottom of the crossbeam 2, providing strong bottom support for the crossbeam 2. The tie rods 33 effectively disperse and transfer loads by forming a triangular stabilizing structure between the first support member 30 and the second support member 31, and between the second support member 31 and the crossbeam 2, thereby reducing the stress concentration of local components and improving the stability of the entire truss system.

[0041] In some embodiments, reference Figures 1 to 6 Both ends of the first support member 30 along the third direction and both ends of the second support member 31 along the third direction are provided with a first concave slide 32 extending along the second direction. The bottom of the crossbeam 2 is provided with a second concave slide 20 extending along the third direction. The first concave slide 32 and the second concave slide 20 are positioned correspondingly, and both are provided with an extension connecting part 21 at the top.

[0042] In some embodiments, reference Figures 1 to 6 The stabilizing structure also includes multiple reinforcing members 4, which are respectively located on both sides of the connection between the first support member 30 and the crossbeam 2 along a third direction, and on both sides of the connection between the second support member 31 and the crossbeam 2 along a third direction. Each reinforcing member 4 includes two right-angle fixing plates 40, which are stacked along a first direction, with their right-angled edges connected to the crossbeam 2, the first support member 30, or the second support member 31, respectively.

[0043] For example, by providing reinforcing members 4 on both sides along a third direction at the connection between the first support member 30 and the crossbeam 2, and at the connection between the second support member 31 and the crossbeam 2, these reinforcing members 4 can effectively enhance the strength and rigidity of the connection. The design of the right-angle fixing plate 40 allows its right-angled sides to be connected to the crossbeam 2, the first support member 30, or the second support member 31 respectively, forming a stable triangular structure that can withstand large loads and stresses.

[0044] In some embodiments, reference Figures 1 to 6 The right-angle fixing plate 40 has a stepped portion 41 on each of its two right-angled sides. The stepped portion 41 contains a groove 42 parallel to the corresponding right-angled side. The grooves 42 in the two right-angle fixing plates 40 are arranged oppositely in the first direction and are used to engage with the extension connecting portion 21, thereby fixing the right-angle fixing plates 40 to the first concave slide rail 32 and the second concave slide rail 20 respectively. The inclined side of the right-angle fixing plate 40 has multiple fixing holes and a first mounting through hole, used to connect and fix the two right-angle fixing plates 40 together with bolts through the multiple fixing holes.

[0045] For example, the two right-angled sides of the right-angled fixing plate 40 are provided with stepped portions 41 and grooves 42. The grooves 42 are used to engage and fix the plate with the extended connecting portion 21. This design makes the connection between the right-angled fixing plate 40 and the first concave slide 32 and the second concave slide 20 more robust and stable. The combined use of fixing holes and bolts allows the right-angled fixing plates 40 to be tightly fixed together, forming a stable triangular structure. When subjected to large loads, the tightly connected right-angled fixing plates 40 can better distribute and transfer the load, avoiding overloading and damage to local components. After the bolts are fixed in the multiple fixing holes within the connecting pieces 50 of the two right-angled fixing plates 40, the two upper grooves 42 are opened in opposite directions, thereby fixing the reinforcing member 4 to the bottom of the crossbeam 2.

[0046] In some embodiments, reference Figures 1 to 6 The first support member 30 is located at the midpoint of the crossbeam 2 along a third direction. The bottom of the first support member 30 is provided with a first connecting block 300, and the bottom of the second support member 31 is provided with a second connecting block 310. The tie rod 33 located between the first support member 30 and the second support member 31 is respectively connected between the first connecting block 300 and the second connecting block 310, and between the first mounting through hole and the first connecting block 300.

[0047] For example, the first support member 30 is located at the midpoint of the crossbeam 2 along a third direction, and the second support member 31 is located on both sides of the first support member 30. This arrangement allows the support members to more rationally distribute the load between the crossbeam 2 and the column 6, avoiding local overload. At the same time, the tie rod 33 is connected between the first connecting block 300 and the second connecting block 310, and between the first mounting through hole and the first connecting block 300. This connection method can further optimize the force path, making the tie rod 33 more efficient in transmitting tensile force and reducing stress concentration between components.

[0048] In some embodiments, reference Figures 1 to 6 The stabilizing structure also includes two connectors 5. Connectors 5 are located on the side of the second support member 31 away from the first support member 30, and their tops are connected to the crossbeam 2. Each connector 5 has a groove 51 on both sides along the first direction, extending along the third direction for engaging and fixing with the extended connecting portion 21 within the first concave slide 32. Each connector 5 includes two connecting pieces 50 stacked along the first direction. The groove 51 is located near the top of the connecting piece 50. Below the groove 51 are a second mounting through hole and multiple connecting holes. A tie rod 33 located between the second support member 31 and the crossbeam 2 connects the second mounting through hole and the second connecting block 310. The multiple connecting holes are used to connect and fix the two connecting pieces 50 using bolts.

[0049] For example, the connector 5 includes two connecting pieces 50 stacked along a first direction. The stacked connecting pieces 50 can jointly bear the load, disperse stress, and reduce the stress concentration of a single connecting piece 50, thereby enabling the connector 5 to withstand a larger load and improving its load-bearing capacity. Furthermore, after the bolts are fixed in the multiple connecting holes within the two connecting pieces 50, the two upper grooves 51 are pushed open in opposite directions, thereby fixing the connector 5 to the bottom of the crossbeam 2.

[0050] In some embodiments, reference Figures 1 to 6 The truss unit 1 also includes columns 6 and multiple connecting rods 60. The columns 6 extend along a second direction and are respectively located at both ends of the crossbeams 2 along a third direction. The multiple connecting rods 60 are respectively located at the connection points between the multiple crossbeams 2 and the columns 6. Each connecting rod 60 extends along a first direction and is used to connect adjacent crossbeams 2.

[0051] For example, the column 6, as the main load-bearing component, can provide strong support for the beam 2, enhance the overall stability of the structure, effectively bear and transmit the load on the beam 2, and reduce the bending deformation and torsion of the beam 2.

[0052] In some embodiments, reference Figures 1 to 6 The stabilizing structure also includes angle steel, which is connected to the crossbeam 2 and the column 6 respectively. The column 6 has third concave slides extending in the second direction on both sides along the third direction, corresponding to the second concave slides 20, and has an extension connecting part 21 at the top. The angle steel has fixing grooves on both sides along the first direction for engaging and fixing to the first concave slide 32 and the third concave slide. The connecting member 5 is located between the second support member 31 and the column 6, close to the angle steel.

[0053] For example, the angle steel is connected to the beam 2 and the column 6 respectively. The high strength and good connection performance of the angle steel can significantly improve the connection stability of the structure. The angle steel is provided with fixing grooves on both sides along the first direction for snap-fit ​​fixing to the first concave slide 32 and the third concave slide. This snap-fit ​​fixing method makes the connection between the angle steel and the slide more solid, effectively transmits and disperses the load, reduces stress concentration at the connection, and further enhances the stability of the structure.

[0054] In some embodiments, reference Figures 1 to 6 The stabilizing structure also includes multiple limiting plates 8 and multiple fixing screws 80. The multiple limiting plates 8 extend along a third direction and are respectively located on the side of the connecting member 5 facing the first support member 30 along the third direction, and on the side of the second support member 31 facing the first support member 30 along the third direction. The multiple fixing screws 80 are used to fix the multiple limiting plates 8 to the bottom of the crossbeam 2.

[0055] For example, by respectively setting the limiting plate 8 on the side of the connector 5 and the second support 31 facing the first support 30, the displacement and rotation of the connector 5 and the second support 31 in the third direction are restricted, thereby improving the overall stability of the structure. The fixing screw 80 is used to fix the limiting plate 8 to the bottom of the crossbeam 2. This fixing method can further enhance the connection strength between the limiting plate 8 and the crossbeam 2, ensuring that the limiting plate 8 can maintain its performance and stability during long-term use.

[0056] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A large-span truss system, characterized in that, include: Multiple truss units are spaced apart along a first direction; each truss unit includes a beam and a stabilizing structure, the stabilizing structure including a first support member, a second support member, and multiple tie rods, the first support member and the second support member both extending along a second direction and located at the bottom of the beam; the second support member is respectively located on both sides of the first support member along a third direction; the multiple tie rods are respectively located between the first support member and the second support member, and between the second support member and the beam, the first direction, the second direction, and the third direction being perpendicular to each other.

2. The large-span truss system according to claim 1, characterized in that, Both ends of the first support member along the third direction and both ends of the second support member along the third direction are provided with a first concave slide rail extending along the second direction. The bottom of the crossbeam is provided with a second concave slide rail extending along the third direction. The first concave slide rail and the second concave slide rail are positioned correspondingly, and both are provided with an extension connection at the top.

3. The large-span truss system according to claim 2, characterized in that, The stabilizing structure also includes multiple reinforcing members, which are respectively located on both sides of the connection between the first support member and the crossbeam along the third direction, and on both sides of the connection between the second support member and the crossbeam along the third direction. Each reinforcing member includes two right-angle fixing plates, which are stacked along the first direction, and the right-angled sides are respectively connected to the crossbeam, the first support member, or the second support member.

4. The large-span truss system according to claim 3, characterized in that, The right-angle fixing plate has a stepped portion on each of its two right-angle sides. The stepped portion has a sliding groove arranged parallel to the corresponding right-angle side. The sliding grooves in the two right-angle fixing plates are arranged oppositely along the first direction and are used to engage and fix the right-angle fixing plates to the first concave slide and the second concave slide respectively. The inclined side of the right-angle fixing plate has multiple fixing holes and a first mounting through hole for connecting and fixing the two right-angle fixing plates in the multiple fixing holes with bolts.

5. The large-span truss system according to claim 4, characterized in that, The first support member is located at the midpoint of the crossbeam along the third direction; the bottom of the first support member is provided with a first connecting block, the bottom of the second support member is provided with a second connecting block, and the tie rod located between the first support member and the second support member is respectively connected between the first connecting block and the second connecting block, and between the first mounting through hole and the first connecting block.

6. The large-span truss system according to claim 5, characterized in that, The stabilizing structure further includes two connectors. The connectors are located on the side of the second support member away from the first support member, and their tops are connected to the crossbeam. The connectors have grooves on both sides along the first direction, and the grooves extend along the third direction for engaging and fixing with the extended connecting portion in the first concave slide. The connectors include two connecting pieces stacked along the first direction. The grooves are located near the top of the connecting pieces, and a second mounting through hole and multiple connecting holes are provided below the grooves. A tie rod located between the second support member and the crossbeam is connected between the second mounting through hole and the second connecting block. The multiple connecting holes are used to connect and fix the two connecting pieces with bolts.

7. The large-span truss system according to claim 6, characterized in that, The truss unit further includes columns and multiple connecting rods. The columns extend along the second direction and are respectively located at both ends of the crossbeams along the third direction. The multiple connecting rods are respectively located at the connection points between the crossbeams and the columns. Each connecting rod extends along the first direction and is used to connect adjacent crossbeams.

8. The large-span truss system according to claim 7, characterized in that, The stabilizing structure also includes angle steel, which is connected to the crossbeam and the column respectively; the column is provided with a third concave slide rail extending along the second direction on both sides along the third direction, the third concave slide rail being correspondingly arranged with the second concave slide rail, and the top is provided with the extension connecting part; the angle steel is provided with a fixing groove on both sides along the first direction for snapping and fixing to the first concave slide rail and the third concave slide rail; the connecting member is provided between the second support member and the column, and is located close to the angle steel.

9. The large-span truss system according to claim 6, characterized in that, The stabilizing structure further includes multiple limiting plates and multiple fixing screws. The multiple limiting plates extend along the third direction and are respectively located on the side of the connector facing the first support member along the third direction, and on the side of the second support member facing the first support member along the third direction. The multiple fixing screws are used to fix the multiple limiting plates to the bottom of the crossbeam.

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