CN218952446U

CN218952446U - Eight-branch spherical cast steel node

Info

Publication number: CN218952446U
Application number: CN202320119441.8U
Authority: CN
Inventors: 杨新宁; 王雷; 马立建; 王自威; 刘兆江
Original assignee: Sichuan Xituo Steel Structure Casting Manufacturing Co ltd
Current assignee: Sichuan Xituo Steel Structure Casting Manufacturing Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-05-02
Anticipated expiration: 2033-01-13

Abstract

The utility model provides an eight-branch spherical cast steel node which can be suitable for large-span building construction such as airports, can reduce the overall quality of the node and improve the stress characteristic of the node, wherein a hollow cavity is arranged in a hollow sphere of the eight-branch spherical cast steel node; the hollow cavity is formed by 1 hemispherical cavity with the radius of 125mm and a plurality of expansion cavities with the section of a fan shape; a first cavity with the inclination of 4 degrees is arranged in the first branch pipe and is communicated with the hollow cavity; the fifth to eighth long branch pipes are positioned at the top of the hollow sphere, and the central axis of each long branch pipe passes through the circle of the hollow sphere; the included angle between the fifth long branch pipe and the sixth long branch pipe is 18 degrees; the included angle of the sixth long branch pipe and the seventh long branch pipe is 16 degrees; the included angle between the seventh long branch pipe and the eighth long branch pipe is 33 degrees; the included angle between the eighth long branch pipe and the fifth long branch pipe is 25 degrees; 21 DEG for the eighth long branch pipe and the sixth long branch pipe.

Description

Eight-branch spherical cast steel node

Technical Field

The utility model relates to the field of spherical cast steel joints, in particular to an eight-branch spherical cast steel joint.

Background

The steel structure of airport is the space grid structure of the folded surface, there are a plurality of folded surfaces to meet with the node department, lead to the node department to handle very complicated, the setting angle of every branch pipe is all different, the assembly degree of difficulty is big. In traditional welding hollow sphere node, it welds the branch pipe on hollow sphere surface directly, and its welding degree of difficulty is big, and the angle of welded pipe is difficult for controlling. And the inside of the hollow ball node is always provided with a spherical hollow cavity, so that the mass of the sphere is still quite large, and the construction of large-span buildings such as airports is not facilitated.

Disclosure of Invention

The utility model aims to provide an eight-branch spherical cast steel node which can be suitable for large-span building construction such as airports and the like, can reduce the overall quality of the node and improve the stress characteristic of the node.

Embodiments of the present utility model are implemented as follows:

an eight-branch spherical cast steel joint, the eight-branch spherical cast steel joint comprising: the hollow sphere, the first branch pipe, the fourth branch pipe, the fifth long branch pipe, the sixth long branch pipe, the seventh long branch pipe, the eighth long branch pipe, the third short branch pipe and the second short branch pipe, the radius of the hollow sphere is 450mm, and a hollow cavity is arranged inside the hollow sphere; the hollow cavity is formed by 1 hemispherical cavity with the radius of 125mm and a plurality of expansion cavities with the section of a fan shape; the first branch pipe and the fourth branch pipe are oppositely arranged and are respectively positioned at the left side and the right side of the hollow sphere, and the central axes of the first branch pipe and the fourth branch pipe are overlapped and pass through the sphere center of the hollow sphere; lifting lugs are arranged on the outer walls of the first branch pipe and the fourth branch pipe; a first cavity with the inclination of 4 degrees is arranged in the first branch pipe and is communicated with the hollow cavity; the fifth to eighth long branch pipes are positioned at the top of the hollow sphere, and the central axis of each long branch pipe passes through the circle of the hollow sphere; the included angle between the fifth long branch pipe and the sixth long branch pipe is 18 degrees; the included angle of the sixth long branch pipe and the seventh long branch pipe is 16 degrees; the included angle between the seventh long branch pipe and the eighth long branch pipe is 33 degrees; the included angle between the eighth long branch pipe and the fifth long branch pipe is 25 degrees; 21 DEG of an eighth long branch pipe and a sixth long branch pipe; the third short branch pipe is arranged on the outer wall of the hollow sphere; the central axis of the third short branch pipe is coincident with the central axis of the sixth long branch pipe, and the third short branch pipe is positioned at the opposite side of the sixth long branch pipe; the included angle between the second short branch pipe and the third short branch pipe is 59 degrees; the included angle between the second short branch pipe and the eighth long branch pipe is 99 degrees; the second short branch pipe and the first branch pipe have an included angle of 111 degrees.

In the preferred embodiment of the utility model, the length from the end surfaces of the first branch pipe and the fourth branch pipe to the sphere center of the hollow sphere is 420mm, and the pipe diameter is 219mm; the fourth branch pipe is provided with a first arc bottom connecting groove with the depth of 195mm and the diameter of 155 mm.

In the preferred embodiment of the present utility model, the lengths from the end surfaces of the fifth long branch pipe, the sixth long branch pipe and the seventh long branch pipe to the center of the sphere are 1045mm, and the pipe diameter is 180mm; the fifth long branch pipe, the sixth long branch pipe and the seventh long branch pipe are respectively provided with second arc bottom connecting grooves with the depths of 695mm, 645mm and 695mm and the inclination of 4 degrees; the maximum diameters of the second circular arc bottom connecting grooves are 115mm, 116mm and 114mm respectively.

In a preferred embodiment of the present utility model, a distance from an end surface of the third short branch pipe to a center of sphere is 420mm, and a pipe diameter of the third short branch pipe is 140mm; the third short branch pipe is provided with a third arc bottom connecting groove with a depth of 195mm and a slope of 2 degrees; the maximum diameter of the third arc bottom connecting groove is 90mm.

In a preferred embodiment of the present utility model, the distance from the end surface of the second short branch pipe to the center of sphere is 420mm, and the pipe diameter of the second short branch pipe is 114mm; the second short branch pipe is provided with a fourth arc bottom connecting groove with a depth of 195mm and a slope of 2 degrees; the maximum diameter of the fourth arc bottom connecting groove is 64mm.

In a preferred embodiment of the present utility model, the radius of the hemispherical cavity is 125mm.

The embodiment of the utility model has the beneficial effects that: the eight-branch-pipe spherical cast steel node is provided with a hollow sphere, the center of the sphere comprises a hemispherical cavity and a plurality of expansion cavities, the weight of the sphere is reduced under the condition of ensuring the strength and the rigidity, the tangent plane of the hemispherical cavity is communicated with a fourth branch pipe, and other branch pipes are all arc bottom connecting grooves for reinforcing rod piece connection; the 8 branch pipes have different directions and different lengths, and can be suitable for bearing corresponding node positions of airports.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIGS. 1 and 2 are schematic perspective views of eight-branch spherical cast steel joints according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a first leg and a second short leg of an eight-leg spherical cast steel node according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a third short leg and a fourth leg of an eight-leg spherical cast steel node according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a fifth long branch and a sixth long branch of an eight-branch spherical cast steel joint according to an embodiment of the present utility model;

fig. 6 is a schematic cross-sectional view of a seventh long branch pipe and an eighth long branch pipe of an eight-branch pipe spherical cast steel joint according to an embodiment of the present utility model.

Icon: hollow sphere 0, first branch 1, second short branch 2, third short branch 3, fourth branch 4, fifth long branch 5, sixth long branch 6, seventh long branch 7, eighth long branch 8; hemispherical cavity 001, enlarged cavity 002, first cavity 101, lifting lug 102, first circular arc bottom connecting groove 401, second circular arc bottom connecting groove 501, third circular arc bottom connecting groove 301, and fourth circular arc bottom connecting groove 201.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

First embodiment

Referring to fig. 1-6, the present embodiment provides an eight-branch spherical cast steel joint, comprising: the hollow sphere 0, the first branch pipe 1, the fourth branch pipe 4, the fifth long branch pipe 5, the sixth long branch pipe 6, the seventh long branch pipe 7, the eighth long branch pipe 8, the third short branch pipe 3 and the second short branch pipe 2, the radius of the hollow sphere 0 is 450mm, and a hollow cavity is arranged inside the hollow sphere 0; the hollow cavity is composed of 1 hemispherical cavity 001 with the radius of 125mm and a plurality of expansion cavities 002 with sector-shaped cross sections. The radius of the hemispherical cavity 001 is 125mm, the hemispherical cavity 001 is 296-degree hemispherical cavity, the tangent plane of the hemispherical cavity is communicated with the first branch pipe, the expansion cavity 002 is a sector expansion cavity 002 of 90 degrees, and the radius is 144mm.

The first branch pipe 1 and the fourth branch pipe 4 are oppositely arranged and are respectively positioned at the left side and the right side of the hollow sphere 0, and the central axes of the first branch pipe 1 and the fourth branch pipe 4 are overlapped and pass through the sphere center of the hollow sphere 0; the outer walls of the first branch pipe 1 and the fourth branch pipe 4 are provided with lifting lugs 102; the first cavity 101 with the inclination of 4 degrees is arranged in the first branch pipe 1 and is communicated with the hollow cavity; the length from the end surfaces of the first branch pipe 1 and the fourth branch pipe 4 to the spherical center of the hollow sphere 0 is 420mm, and the pipe diameter is 219mm; the fourth branch pipe 4 is provided with a first circular arc bottom connecting groove 401 having a depth of 195mm and a diameter of 155 mm.

The fifth to eighth long branch pipes 8 are positioned at the top of the hollow sphere 0, and the central axis of each long branch pipe passes through the round shape of the hollow sphere 0; the included angle between the fifth long branch pipe 5 and the sixth long branch pipe 6 is 18 degrees; the included angle between the sixth long branch pipe 6 and the seventh long branch pipe 7 is 16 degrees; the included angle between the seventh long branch pipe 7 and the eighth long branch pipe 8 is 33 degrees; the included angle between the eighth long branch pipe 8 and the fifth long branch pipe 5 is 25 degrees; 21 ° of the eighth long branch pipe 8 and the sixth long branch pipe 6; specifically, the lengths from the end surfaces of the fifth long branch pipe 5, the sixth long branch pipe 6 and the seventh long branch pipe 7 to the sphere center are 1045mm, and the pipe diameter is 180mm; the fifth long branch pipe 5, the sixth long branch pipe 6 and the seventh long branch pipe 7 are respectively provided with a second arc bottom connecting groove 501 with the depth of 695mm, 645mm and 695mm and the inclination of 4 degrees; the maximum diameters of the second circular arc bottom connecting grooves 501 are 115mm, 116mm and 114mm, respectively.

The third short branch pipe 3 is arranged on the outer wall of the hollow sphere 0; the central axis of the third short branch pipe 3 coincides with the central axis of the sixth long branch pipe 6, and the third short branch pipe 3 is positioned at the opposite side of the sixth long branch pipe 6; the angle between the second short branch pipe 2 and the third short branch pipe 3 is 59 degrees. The distance from the end face of the third short branch pipe 3 to the sphere center is 420mm, and the pipe diameter of the third short branch pipe 3 is 140mm; the third short branch pipe 3 is provided with a third arc bottom connecting groove 301 with a depth of 195mm and a slope of 2 degrees; the maximum diameter of the third circular arc bottom connecting groove 301 is 90mm.

The included angle between the second short branch pipe 2 and the eighth long branch pipe 8 is 99 degrees; the second short branch pipe 2 forms an angle of 111 deg. with the first branch pipe 1. The distance from the end face of the second short branch pipe 2 to the sphere center is 420mm, and the pipe diameter of the second short branch pipe 2 is 114mm; the second short branch pipe 2 is provided with a fourth arc bottom connecting groove 201 with a depth of 195mm and a slope of 2 degrees; the maximum diameter of the fourth circular arc bottom connecting groove 201 is 64mm.

In summary, the eight-branch spherical cast steel node in the utility model is provided with a hollow sphere 0, the center of the sphere comprises a hemispherical cavity 001 and a plurality of expansion cavities 002, the spherical cavity 001 is used for reducing the weight of the sphere under the condition of ensuring the strength and the rigidity, the tangent plane of the hemispherical cavity 001 is communicated with the fourth branch pipe 4, and other branch pipes are all arc bottom connecting grooves for reinforcing rod piece connection; the 8 branch pipes are different in direction and length, the stress concentration phenomenon tends to be gentle, the stress distribution is improved to some extent, the bearing capacity of the node is correspondingly improved, and the method can be suitable for bearing corresponding node positions of airports.

This description describes examples of embodiments of the utility model and is not intended to illustrate and describe all possible forms of the utility model. It should be understood that the embodiments in the specification may be embodied in many alternate forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present utility model. Those skilled in the art will appreciate that a plurality of features illustrated and described with reference to any one drawing may be combined with features illustrated in one or more other drawings to form embodiments not explicitly illustrated or described. The illustrated combination of features provides representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of the present utility model may be used in particular applications or implementations as desired.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An eight-branch spherical cast steel node, characterized in that the eight-branch spherical cast steel node comprises: the radius of the hollow sphere is 450mm, and a hollow cavity is arranged inside the hollow sphere; the hollow cavity is formed by 1 hemispherical cavity with the radius of 125mm and a plurality of expansion cavities with the section of a fan shape;

the first branch pipe and the fourth branch pipe are oppositely arranged and are respectively positioned at the left side and the right side of the hollow sphere, and the central axes of the first branch pipe and the fourth branch pipe are overlapped and pass through the sphere center of the hollow sphere; lifting lugs are arranged on the outer walls of the first branch pipe and the fourth branch pipe; a first cavity with the inclination of 4 degrees is arranged in the first branch pipe and is communicated with the hollow cavity; a fifth long branch pipe, a sixth long branch pipe, a seventh long branch pipe and an eighth long branch pipe, wherein the fifth to eighth long branch pipes are positioned at the top of the hollow sphere, and the central axis of each long branch pipe passes through the circle of the hollow sphere; the included angle between the fifth long branch pipe and the sixth long branch pipe is 18 degrees; the included angle between the sixth long branch pipe and the seventh long branch pipe is 16 degrees; the included angle between the seventh long branch pipe and the eighth long branch pipe is 33 degrees; the included angle between the eighth long branch pipe and the fifth long branch pipe is 25 degrees; 21 DEG of an eighth long branch pipe and a sixth long branch pipe;

the third short branch pipe is arranged on the outer wall of the hollow sphere; the central axis of the third short branch pipe is coincident with the central axis of the sixth long branch pipe, and the third short branch pipe is positioned at the opposite side of the sixth long branch pipe;

the included angle between the second short branch pipe and the third short branch pipe is 59 degrees; the included angle between the second short branch pipe and the eighth long branch pipe is 99 degrees; the included angle between the second short branch pipe and the first branch pipe is 111 degrees.

2. The eight-branch spherical cast steel node according to claim 1, wherein the length from the end surfaces of the first branch pipe and the fourth branch pipe to the spherical center of the hollow sphere is 420mm, and the pipe diameter is 219mm; the fourth branch pipe is provided with a first arc bottom connecting groove with the depth of 195mm and the diameter of 155 mm.

3. The eight-branch spherical cast steel node according to claim 1, wherein the lengths from the end surfaces of the fifth long branch pipe, the sixth long branch pipe and the seventh long branch pipe to the center of the sphere are 1045mm, and the pipe diameter is 180mm; the fifth long branch pipe, the sixth long branch pipe and the seventh long branch pipe are respectively provided with second arc bottom connecting grooves with the depths of 695mm, 645mm and 695mm and the inclination of 4 degrees; the maximum diameters of the second circular arc bottom connecting grooves are 115mm, 116mm and 114mm respectively.

4. The eight-branch spherical cast steel node according to claim 1, wherein the distance from the end surface of the third short branch pipe to the center of the sphere is 420mm, and the pipe diameter of the third short branch pipe is 140mm; the third short branch pipe is provided with a third arc bottom connecting groove with the depth of 195mm and the inclination of 2 degrees; and the maximum diameter of the third arc bottom connecting groove is 90mm.

5. The eight-branch spherical cast steel node according to claim 1, wherein the distance from the end surface of the second short branch pipe to the center of the sphere is 420mm, and the pipe diameter of the second short branch pipe is 114mm; the second short branch pipe is provided with a fourth arc bottom connecting groove with the depth of 195mm and the inclination of 2 degrees; the maximum diameter of the fourth arc bottom connecting groove is 64mm.

6. The eight-leg spherical cast steel node of claim 1, wherein the radius of the hemispherical cavity is 125mm.