CN216276196U - Reticulated shell node suitable for multi-rod intersection, reticulated shell and building - Google Patents

Abstract

The application discloses a reticulated shell node, reticulated shell and building suitable for multi-rod intersection, wherein the reticulated shell node comprises a disc-shaped main body (10) and a plurality of branches (20) used for being connected with the rods respectively, the branches (20) radially extend from the periphery of the disc-shaped main body (10), and the disc-shaped main body (10) is provided with lightening holes (11). The member can be connected in the branch keeping away from the intersection to avoid interfering near the intersection and can't connect through the latticed shell node, make the member all can realize effective connection through the latticed shell node. Due to the lightening holes, the weight of the joints of the reticulated shell can be reduced, and the overall stability of the reticulated shell is improved.

Description

Reticulated shell node suitable for multi-rod intersection, reticulated shell and building

Technical Field

The application relates to the field of buildings, in particular to a reticulated shell node, a reticulated shell and a building suitable for multi-rod intersection.

Background

For buildings with unique shapes, such as gymnasiums and exhibition halls, the net shells are usually used to form the main outer contour of the building. The latticework shell is typically formed using rods that extend in different directions and are joined at junctions by welded joints, bolted joints, to form junction nodes. Specifically, the welding joint has the problems of more welding seams, small included angle of the rod piece, inconvenience in welding and the like. The bolt node needs to be connected through a connecting plate, a bolt and the like, the number of holes formed in the connecting plate is large, and the strength and the rigidity of the node are poor. Although the junction nodes can be made of cast steel and have a solid structure, the connection strength of the latticed shell nodes is ensured, so that the junction nodes have large vertical concentrated force, the whole weight of the latticed shell is increased, and the whole stability and safety of the latticed shell are influenced.

Therefore, how to connect the rods at the intersection of the rods in a manner of strong node and weak member becomes a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a reticulated shell node suitable for multi-rod intersection, so as to ensure the strength of the connection and improve the overall stability of the reticulated shell.

According to the application, a reticulated shell node suitable for multi-rod intersection is provided, wherein the reticulated shell node comprises a disc-shaped main body and a plurality of branches respectively connected with the rods, the branches radially extend from the periphery of the disc-shaped main body, and the disc-shaped main body is provided with lightening holes.

Optionally, the lightening hole is arranged concentrically with the disc-shaped body.

Optionally, the diameter of the lightening hole is 0.4 to 0.6 times the diameter of the disc-shaped body.

Optionally, the rod is rectangular and tubular, the branches are arranged in a hollow structure to be in butt joint with the rod, and the extension length of each branch is 1-2 times of the height of the rod.

Optionally, the height of the disc-shaped body is the same as that of the branches, and/or the thickness of the branches is the same as that of the rod.

Optionally, the latticed shell node is a steel casting, and/or a circular arc chamfer is arranged at the joint of the branch and the disc-shaped main body.

This application still provides a net shell, wherein, the net shell includes member and this application be applicable to the net shell node that many members intersected, and is a plurality of the member respectively with a plurality of net shell node the branch is connected, in order to pass through net shell node forms the node that intersects.

Optionally, the included angle between adjacent rod members connected to the same reticulated shell node is not more than 45 °, and/or the diameter of the disc-shaped body is set such that the rod members do not intersect with each other.

Optionally, the strength of the cross section of the branch is 1.2-1.5 times greater than that of the rod, and/or the disc-shaped body has the same radian as that of the junction.

The present application also provides a building, wherein the building comprises the reticulated shell of the present application.

According to the technical scheme of this application, the member can be kept away from the junction and connect in branch to avoid interfering and can't connect through the net shell node near the junction, make the member all can realize effectively connecting through the net shell node. Due to the lightening holes, the weight of the joints of the reticulated shell can be reduced, and the overall stability of the reticulated shell is improved.

Additional features and advantages of the present application will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:

FIG. 1 is a perspective view of a reticulated shell node suitable for multi-rod intersection in accordance with a preferred embodiment of the present application;

FIG. 2 is a top view of the reticulated shell node of FIG. 1;

FIG. 3 is a cross-sectional view of the nodes of the reticulated shell of FIG. 2;

fig. 4 is a front view of the latticed shell node of fig. 2.

Detailed Description

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In this application, where the contrary is not stated, the use of directional words such as "upper, lower, left and right" generally means upper, lower, left and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to one aspect of the present application, there is provided a reticulated shell node suitable for multi-rod intersection, wherein the reticulated shell node comprises a disc-shaped main body 10 and a plurality of branches 20 for respectively connecting a plurality of rods, the branches 20 radially extending from the outer circumference of the disc-shaped main body 10, and the disc-shaped main body 10 has lightening holes 11.

According to another aspect of the present application, there is provided a latticework shell comprising rod members and latticework nodes adapted for multi-rod intersection of the present application, a plurality of the rod members being connected to a plurality of the branches 20 of the latticework nodes, respectively, to form intersection nodes through the latticework nodes.

According to another aspect of the present application, there is provided a building, wherein the building comprises a reticulated shell of the present application. The building of the present application can be of various types with a reticulated shell, such as a gym.

During the use, the member can be kept away from the junction and connect in branch 20 to avoid interfering near the junction and can't connect through the net shell node, make the member all can realize effectively connecting through the net shell node. Due to the lightening holes 11, the weight of the joints of the latticed shell can be reduced, and the overall stability of the latticed shell is improved.

Wherein the diameter D1 of the disc-shaped body 10 is arranged such that the rods do not cross each other. That is, at the outer circumference of the disc-shaped body 10, adjacent rods do not cross (but extension lines of the rods still meet), so as not to interfere with each other and to facilitate a connection (e.g., welding) operation of the rods with the nodes of the reticulated shell. For this reason, the diameter of the disc-shaped body 10 may be set at the time of design according to the condition of a specific junction so that the respective rods do not intersect at the outer periphery of the disc-shaped body 10. Specifically, the disc-shaped body 10 may be disposed centering on the intersection of the extension lines of the respective rod pieces such that the diameters D1 thereof satisfy that the respective rod pieces do not intersect at the outer periphery of the disc-shaped body 10.

In order to take the connection strength and the overall stability of the reticulated shell into consideration, the diameter of the disc-shaped main body 10 can be reasonably set, and therefore, the included angle between the adjacent rod pieces connected with the same reticulated shell node is not more than 45 degrees, so that the diameter D1 of the disc-shaped main body 10 can be controlled.

It should be noted that, at different positions of the reticulated shell, the reticulated shell itself may have different curvatures, and the disc-shaped body 10 may have the same curvature as that of the junction, so as to ensure a smooth shape of the reticulated shell as a whole. In the case of a curve, the disk-shaped body 10 is approximate to a curved surface, and a radius passing through the center of the disk-shaped body 10 (i.e., the vertex of the curved surface) may be assumed, and a plane perpendicular to the radius and passing through the outer periphery of the disk-shaped body 10 is a projection plane, and the diameter D1 of the disk-shaped body 10 is a diameter of a projection circle of the outer periphery on the projection plane.

In addition, the number and extending direction of the branches 20 may be set according to the situation at a specific junction, that is, the number and extending direction of the branches 20 are correspondingly set according to the number and extending direction of the rods actually joined.

In the present application, the lightening holes 11 may be provided in suitable positions and with suitable dimensions as required, and for ease of manufacture, as shown in fig. 1 to 3, the lightening holes 11 are provided concentrically with the disc-shaped body 10. Furthermore, the lightening holes 11 can be dimensioned according to the overall stress of the finite element analysis. Preferably, the diameter D2 of the lightening hole 11 is 0.4-0.6 times the diameter D1 of the disc-shaped body 10.

In the present application, the rod may be a straight member in a suitable form, for example, the rod may be a rectangular tube, and in order to ensure a stable connection between the rod and the branches 20, as shown in fig. 1 and 4, the branches 20 may be provided with a hollow structure to be butted against the rod, and in particular, the branches 20 may be provided with a central hole 21 to form a hollow structure, and the branches 20 may be welded to the rod. To ensure that the limbs have sufficient strength to form a secure abutment with the rod, the limbs 20 may extend for a length of 1-2 times the height of the rod (i.e. the height of the rectangular cross-section). In order to ensure the strength and stability of the butt joint, the thickness (i.e., wall thickness) of the tubular structure of the branch 20 and the rod should be ensured. The thickness of the bars is set according to the needs of the overall latticed shell structure, preferably the thickness of the branches 20 is the same as the thickness of the bars.

In the present application, the height of the disc-shaped body 10 is the same as that of the branches 20 in order to increase the stability of the nodes of the reticulated shell. For ease of manufacture, the nodes of the reticulated shell may be a single piece. Preferably, to ensure sufficient strength, rigidity, the nodes of the reticulated shell are steel castings. In order to avoid stress concentration at the junction of the disc-shaped main body 10 and the branch 20, the junction of the branch 20 and the disc-shaped main body 10 has a circular arc chamfer, and the disc-shaped main body 10 may be concave at the junction with the branch 20 to form the circular arc chamfer.

In order to ensure sufficient connection strength, the strength of the cross section of the branches 20 is 1.2 to 1.5 times greater than that of the rod.

Specific structures and corresponding parameters of the latticed shell nodes can be designed respectively aiming at different junctions of the latticed shell, and the designed latticed shell nodes are subjected to simulated loading through finite element analysis, so that when the latticed shell nodes are loaded to 10 times of design load, the branches 20 with the maximum stress of the latticed shell nodes exceed the yield stress of materials, and meanwhile, other branches 20 and the disc-shaped main body 10 are still in an elastic state, so that the requirements of strong-node weak components are met.

In addition, the overall stability checking calculation can be carried out on the reticulated shell, double nonlinearity is considered, and the overall stability safety coefficients of calculating the full-span live load and the half-span live load are both greater than 4.2. After sufficient checking and checking, the specific parameters of each net shell node can be determined.

In the present application, the reticulated shell is preferably a single-layer reticulated shell. Furthermore, the rod is preferably welded to the branch 20.

The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.

In addition, any combination of the various embodiments of the present application can be made, and the same should be considered as the disclosure of the present invention as long as the combination does not depart from the spirit of the present application.

Claims (10)

1. A reticulated shell joint suitable for multi-rod intersection, comprising a disc-shaped body (10) and a plurality of branches (20) for connecting to a plurality of rods, respectively, the branches (20) extending radially from the outer periphery of the disc-shaped body (10), the disc-shaped body (10) having lightening holes (11).

2. A latticed joint according to claim 1, characterized in that said lightening holes (11) are arranged concentrically with said disc-shaped body (10).

3. A reticulated shell joint according to claim 2, wherein the lightening holes (11) have a diameter of 0.4-0.6 times the diameter of the disc-shaped body (10).

4. A reticulated shell node according to claim 1, wherein the rods are rectangular tubular, the branches (20) are arranged in a hollow configuration to interface with the rods, the branches (20) extending for a length 1-2 times the height of the rods.

5. The reticulated shell node of claim 4, wherein the disc-shaped body (10) and the branches (20) are the same height, and/or wherein the branches (20) have the same thickness as the rods.

6. A latticed joint according to any one of claims 1-5, characterized in that it is a steel casting and/or that the junction of the branches (20) and the disc-like body (10) has a rounded chamfer.

7. A mould shell, characterized in that it comprises bars and mould shell nodes adapted for multi-bar intersection according to any of claims 1-6, a plurality of said bars being connected to a plurality of said branches (20) of said mould shell nodes, respectively, to form intersection nodes by said mould shell nodes.

8. The reticulated shell of claim 7, wherein the included angle between adjacent rods connected to the same reticulated shell node is not greater than 45 °, and/or the diameter of the disc-shaped body (10) is such that the rods do not intersect one another.

9. The shell according to claim 7 or 8, wherein the cross-sectional strength of the branches (20) is 1.2-1.5 times greater than the cross-sectional strength of the rods and/or the disc-shaped body (10) has the same curvature as the intersection.

10. A building, characterized in that it comprises a shell according to any one of claims 7-9.

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