Grid beam node structure in space structure

Abstract

The utility model discloses a grid beam node structure in a space structure, which is characterized in that a grid beam is formed by splicing a top plate, a bottom plate and a side plate, the whole grid beam is of a square box beam structure which is arranged in an X shape, and an inserting plate is arranged in the intersection center of the grid beam; the insertion plate vertically penetrates through the top plate and the bottom plate, a first insertion hole matched with the insertion plate is formed in the top plate, a second insertion hole matched with the insertion plate is formed in the bottom plate, the upper end of the insertion plate is arranged in the first insertion hole and welded to the top plate, and the lower end of the insertion plate extends out of the second insertion hole and forms a drop-shaped first lug plate on the outer side of the bottom plate; the portion, matched with the second inserting hole, of the inserting plate is welded to the bottom plate. The two side edges of the inserting plate are welded to the corners of the side plates located on the two longitudinal sides respectively. The steel casting node structure has the advantages of being high in strength and rigidity, good in stability, convenient to manufacture, easy in quality control and the like, and can effectively solve the problems existing in a traditional steel casting node structure.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building structure technical field, concretely relates to a grid beam node structure in space structure. BACKGROUND

[0002] In the field of building structure, grid beam structure is widely used in large-span space structure, bridge, stadium and other engineering. As the key component connecting grid beam and strut, the strength and stability of grid beam node directly affect the safety and durability of the overall structure. The traditional grid beam node structure usually adopts cast steel, but the manufacturing of cast steel needs complex mold manufacturing and casting process, which has long production cycle, high cost and uncontrolled quality. The castings are prone to defects such as coarse grains and segregation, resulting in local weak strength. Therefore, a new type of grid beam node structure is needed to solve the above problems. SUMMARY

[0003] The utility model solves the problem that the traditional cast steel node structure has the problems, and provides a grid beam node structure in space structure, which has the characteristics of high strength and rigidity, good stability, easy manufacturing and easy quality control, and can effectively solve the problems of the traditional cast steel node structure.

[0004] In order to solve the above technical problems, the utility model provides a grid beam node structure in space structure, which includes a strut and a grid beam, the grid beam is rotatably connected with the strut through a pin shaft, the grid beam is spliced by a top plate, a bottom plate and a side plate, and the whole is arranged in a square box beam structure in X shape, the cross center of the grid beam is internally provided with an insertion plate, a first reinforcing plate and a second reinforcing plate;

[0005] The insertion plate vertically penetrates the top plate and the bottom plate, the top plate is provided with a first insertion hole matched with the insertion plate, the bottom plate is provided with a second insertion hole matched with the insertion plate, the upper end of the insertion plate is arranged in the first insertion hole and welded with the top plate, the lower end of the insertion plate is stretched out from the second insertion hole and forms a water drop-shaped first ear plate outside the bottom plate, and the part matched with the second insertion hole of the insertion plate is welded with the bottom plate; the two side edges of the insertion plate are respectively welded with the corners of the side plates located on the two sides in the longitudinal direction;

[0006] The first reinforcing plate vertically penetrates the top plate and the bottom plate of the grid beam, the third insertion hole matched with the first reinforcing plate is formed on the top plate, the fourth insertion hole matched with the first reinforcing plate is formed on the bottom plate, the upper end of the first reinforcing plate is arranged in the third insertion hole and is welded with the top plate, and the lower end of the first reinforcing plate is arranged in the fourth insertion hole and is welded with the bottom plate; one side edge of the first reinforcing plate is welded with the middle part of one side plate surface of the insertion plate, and the other side edge of the first reinforcing plate is welded with the corner of the side plate on the transverse side.

[0007] The second reinforcing plate vertically penetrates the top plate and the bottom plate of the grid beam, the fifth insertion hole matched with the second reinforcing plate is formed on the top plate, the sixth insertion hole matched with the second reinforcing plate is formed on the bottom plate, the upper end of the second reinforcing plate is arranged in the fifth insertion hole and is welded with the top plate, and the lower end of the second reinforcing plate is arranged in the sixth insertion hole and is welded with the bottom plate; one side edge of the second reinforcing plate is welded with the middle part of the other side plate surface of the insertion plate, and the other side edge of the second reinforcing plate is welded with the corner of the side plate on the transverse side.

[0008] As a preferred scheme of the present application, the top plate, the bottom plate, the side plate, the insertion plate, the first reinforcing plate and the second reinforcing plate are all steel plates.

[0009] As a preferred scheme of the present application, the thickness of the insertion plate is 50 mm.

[0010] As a preferred scheme of the present application, the thickness of the first reinforcing plate and the second reinforcing plate is 16 mm.

[0011] As a preferred scheme of the present application, the thickness of the top plate, the bottom plate and the side plate is 12 mm.

[0012] As a preferred scheme of the present application, the upper end of the insertion plate is flush with the upper surface of the top plate.

[0013] As a preferred scheme of the present application, the top end of the supporting rod is fixedly provided with two oppositely arranged second ear plates, the first ear plate is inserted between the two second ear plates and is rotationally connected through a pin shaft.

[0014] As a preferred scheme of the present application, the thickness of the second ear plate is 25 mm.

[0015] The grid beam node structure in the space structure of the embodiment of the present application has the following beneficial effects compared with the prior art:

[0016] (1) High structural strength and good stability: the X-shaped square box beam structure combined with the design of the insert plate and the reinforcing plate significantly improves the bending resistance, torsion resistance and shear resistance of the node, and ensures the stability of the grid beam node under complex load action.

[0017] (2) Reliable node connection and clear force transmission path: the lug structure formed by the insert plate penetrating the grid beam makes the connection between the grid beam node and the strut more reliable, and the welding structure between the insert plate and the grid beam ensures the continuity of the force transmission path and the integrity of the node.

[0018] (3) Easy to manufacture and stable quality: the steel plate splicing structure replaces the traditional cast steel part, and compared with the cast steel part, the manufacturing process of the steel plate splicing structure is relatively simple, the main machining processes are cutting, welding and assembly, the quality is easier to control, and the construction efficiency is improved; in the welding process, the quality of the weld and the overall performance of the component can be ensured through strict welding process and quality detection means, and the material and performance of the steel plate are relatively stable, reducing the quality problems caused by uneven material and other factors. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0020] Figure 1 is the top view of the grid beam node structure in the spatial structure of the embodiments of the present application;

[0021] Figure 2 is the sectional view of A-A direction in the structure shown in Figure 1 ; is the sectional view of B-B direction in the structure shown in

[0022] Figure 3 ; is the sectional view of B-B direction in the structure shown in Figure 1 .

[0023] Markings in the figure:

[0024] Grid beam 1; top plate 11; bottom plate 12; side plate 13; insert plate 14; first reinforcing plate 15; second reinforcing plate 16; first lug 17; first jack 111; second jack 121; third jack 112; fourth jack 122; corner a, b, c, d; strut 2; second lug 21. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] like Figures 1 to 3 As shown, this is a preferred embodiment of the present invention.

[0028] A grid beam node structure in a spatial structure includes a grid beam 1 and a strut 2. The grid beam 1 is rotatably connected to the strut 2 via a pin 3. The grid beam 1 is spliced ​​from a top plate 11, a bottom plate 12, and side plates 13, forming an X-shaped square box beam structure. This design has high bending and torsional stiffness. An insert plate 14, a first reinforcing plate 15, and a second reinforcing plate 16 are provided inside the intersection center of the grid beam 1.

[0029] The insert plate 14 vertically penetrates the top plate 11 and the bottom plate 12. The top plate 11 has a first insertion hole 111 that mates with the insert plate 14, and the bottom plate 12 has a second insertion hole 121 that mates with the insert plate 14. The upper end of the insert plate 14 is located within the first insertion hole 111 and welded to the top plate 11. The lower end of the insert plate 14 extends from the second insertion hole 121 and forms a teardrop-shaped first ear plate 17 on the outside of the bottom plate 12. The portion of the insert plate 14 that mates with the second insertion hole 121 is welded to the bottom plate 12. The two side portions of the insert plate 14 are welded to corners a and b of the side plates 13 located on the longitudinal sides, respectively. Thus, the insert plate 14 enhances the overall strength and rigidity of the grid beam node, and the ear plate structure formed by the insert plate 14 penetrating the grid beam 1 makes the connection between the grid beam node and the strut 2 more reliable. The welded structure between the insert plate 14 and the grid beam 1 ensures the continuity of the force transmission path and the integrity of the node.

[0030] The first reinforcing plate 15 vertically penetrates the top plate 11 and the bottom plate 12 of the grid beam 1, the top plate 11 is provided with a third insertion hole 112 matched with the first reinforcing plate 15, the bottom plate 12 is provided with a fourth insertion hole 122 matched with the first reinforcing plate 15, the upper end of the first reinforcing plate 15 is arranged in the third insertion hole 112 and is welded with the top plate 11, the lower end of the first reinforcing plate 15 is arranged in the fourth insertion hole 122 and is welded with the bottom plate 12; one side edge of the first reinforcing plate 15 is welded with the middle part of one side plate 13 of the insertion plate 14, the other side edge of the first reinforcing plate 15 is welded with the corner c of the side plate 13 on the transverse side; the second reinforcing plate 16 vertically penetrates the top plate 11 and the bottom plate 12 of the grid beam 1, the top plate 11 is provided with a fifth insertion hole matched with the second reinforcing plate 16, the bottom plate 12 is provided with a sixth insertion hole matched with the second reinforcing plate 16, the upper end of the second reinforcing plate 16 is arranged in the fifth insertion hole and is welded with the top plate 11, the lower end of the second reinforcing plate 16 is arranged in the sixth insertion hole and is welded with the bottom plate 12; one side edge of the second reinforcing plate 16 is welded with the middle part of the other side plate 13 of the insertion plate 14, the other side edge of the second reinforcing plate 16 is welded with the corner d of the side plate 13 on the transverse side. Therefore, the arrangement of the first reinforcing plate 15 and the second reinforcing plate 16 further reinforces the connection between the insertion plate 14 and the side plate 13, and further enhances the overall strength and rigidity of the grid beam node, and ensures the stability of the grid beam node under complex load.

[0031] For example, the top plate 11, the bottom plate 12, the side plate 13, the insertion plate 14, the first reinforcing plate 15 and the second reinforcing plate 16 are all steel plates; the thickness of the top plate 11, the bottom plate 12 and the side plate 13 is 12mm; the thickness of the insertion plate 14 is 50mm; the thickness of the first reinforcing plate 15 and the second reinforcing plate 16 is 16mm. Therefore, the thickness of the insertion plate 14, the reinforcing plate, the top plate 11, the bottom plate 12 and the like is reasonably designed, which not only ensures the structural strength, but also avoids material waste, and has good economy.

[0032] It should be noted that the grid beam node structure of the embodiment of the utility model is replaced by the steel plate splicing structure instead of the traditional cast steel part, compared with the cast steel part, the manufacturing process of the steel plate splicing structure is relatively simple, the quality is easier to control, and the construction efficiency is improved; in the welding process, the quality of the weld and the overall performance of the component can be ensured through strict welding process and quality detection means, and the material and performance of the steel plate are relatively stable, and the quality problems caused by uneven material and the like are reduced.

[0033] Exemplarily, the upper end of the plug plate 14 is flush with the upper surface of the top plate 11, so as to facilitate the plug plate 14 to be welded outside the top plate 11.

[0034] Exemplarily, the top end of the support rod 2 is fixed with two oppositely arranged second ear plates 21, the first ear plate 17 is inserted between the two second ear plates 21 and is rotationally connected through the pin shaft 3, so that the grid beam node structure can adapt to different space structure forms, and is especially suitable for occasions requiring certain rotational freedom, such as large-span space grid structures, bridge structures and the like.

[0035] Exemplarily, the thickness of the second ear plate 21 is 25mm, so as to ensure the connecting strength of the first ear plate 17.

[0036] In the description of the present application, it should be understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" used in the present application should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The above only discloses the preferred embodiments of the present application, and of course cannot limit the scope of the present application, therefore, equivalent changes made according to the patent application scope of the present application still belong to the scope covered by the present application.

Claims

1. A grid beam node structure in a spatial structure, comprising a strut and a grid beam, wherein the grid beam is rotatably connected to the strut via a pin, characterized in that: The grid beam is spliced ​​from a top plate, a bottom plate, and side plates, forming an X-shaped square box beam structure. At the intersection center of the grid beam, there is an insert plate, a first reinforcing plate, and a second reinforcing plate inside. The insert plate extends vertically through the top plate and the bottom plate. The top plate has a first insertion hole that mates with the insert plate, and the bottom plate has a second insertion hole that mates with the insert plate. The upper end of the insert plate is disposed in the first insertion hole and welded to the top plate. The lower end of the insert plate extends out from the second insertion hole and forms a teardrop-shaped first ear plate on the outside of the bottom plate. The part of the insert plate that mates with the second insertion hole is welded to the bottom plate. The two side parts of the insert plate are respectively welded to the corners of the side plates located on the longitudinal sides. The first reinforcing plate vertically penetrates the top and bottom plates of the grid beam. A third insertion hole that mates with the first reinforcing plate is provided on the top plate, and a fourth insertion hole that mates with the first reinforcing plate is provided on the bottom plate. The upper end of the first reinforcing plate is disposed in the third insertion hole and welded to the top plate, and the lower end of the first reinforcing plate is disposed in the fourth insertion hole and welded to the bottom plate. One side of the first reinforcing plate is welded to the middle of one side of the insertion plate, and the other side of the first reinforcing plate is welded to the corner of the side plate located on the lateral side. The second reinforcing plate vertically penetrates the top and bottom plates of the grid beam. A fifth insertion hole that mates with the second reinforcing plate is provided on the top plate, and a sixth insertion hole that mates with the second reinforcing plate is provided on the bottom plate. The upper end of the second reinforcing plate is disposed in the fifth insertion hole and welded to the top plate, and the lower end of the second reinforcing plate is disposed in the sixth insertion hole and welded to the bottom plate. One side of the second reinforcing plate is welded to the middle of the other side of the insertion plate, and the other side of the second reinforcing plate is welded to the corner of the side plate located on the other side laterally.

2. The grid beam node structure in the spatial structure as described in claim 1, characterized in that: The top plate, the bottom plate, the side plate, the insert plate, the first reinforcing plate, and the second reinforcing plate are all steel plates.

3. The grid beam node structure in the spatial structure as described in claim 1, characterized in that: The thickness of the insert plate is 50mm.

4. The grid beam node structure in the spatial structure as described in claim 1, characterized in that: The thickness of the first reinforcing plate and the second reinforcing plate is 16mm.

5. The grid beam node structure in the spatial structure as described in claim 1, characterized in that: The thickness of the top plate, bottom plate and side plate is 12mm.

6. The grid beam node structure in the spatial structure as described in claim 1, characterized in that: The upper end of the insert plate is flush with the upper surface of the top plate.

7. The grid beam node structure in the spatial structure as described in any one of claims 1 to 6, characterized in that: The top end of the support rod is fixed with two opposing second ear plates, and the first ear plate is inserted between the two second ear plates and is rotatably connected by a pin.

8. The grid beam node structure in the spatial structure as described in claim 7, characterized in that: The thickness of the second ear plate is 25mm.

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