CN210976078U

CN210976078U - Y-shaped connecting joint of circular steel pipe

Info

Publication number: CN210976078U
Application number: CN201921604850.7U
Authority: CN
Inventors: 姚莉; 李华峰; 陈二燕; 雷晓东; 崔建华; 徐斌
Original assignee: Beijing Institute of Architectural Design Group Co Ltd
Current assignee: Beijing Institute of Architectural Design Group Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-07-10
Anticipated expiration: 2029-09-25

Abstract

The utility model relates to a need set up Y shape steel pipe rigid connection node's technical field among steel construction, the super high-rise building structure, especially adopt circular steel pipe batter post conversion and have strict outward appearance requirement at super high-rise building structure's outer frame post, this Y shape connected node can also guarantee that the outward appearance is graceful under the prerequisite of guaranteeing to connect the bearing capacity. The Y-shaped connecting node of the round steel pipe comprises: a branch pipe I, a branch pipe II and a main pipe; the first branch pipe and the second branch pipe are fixedly connected with the main pipe through a first elliptic conical surface and a second elliptic conical surface; the first elliptical conical surface and the second elliptical conical surface are arranged in mirror symmetry. The Y-shaped connecting joint of the double-conical-surface transitional circular steel pipe is simple in structure, clear in force transmission, easy to machine and attractive in appearance. Compared with the existing Y-shaped connecting node of the circular steel pipe, the Y-shaped connecting node has obvious advantages.

Description

Y-shaped connecting joint of circular steel pipe

Technical Field

The utility model relates to a need set up the technical field of Y shape steel pipe rigid connection node among steel construction, the super high-rise building structure, especially adopt circular steel pipe batter post conversion, space steel construction major diameter steel pipe conversion and have when strict outward appearance requirement at super high-rise building structure's outer frame post, this Y shape connected node can also guarantee that the outward appearance is graceful under the prerequisite of ensureing to connect the bearing capacity.

Background

The Y-shaped connection form of the circular steel pipe is widely applied to steel structures and reinforced concrete composite structures, and the main realization functions are as follows: the three translational degrees of freedom and the three rotational degrees of freedom of response internal force of the structural rod piece are transmitted through rigid connection node connection. At present, the common rigid connection nodes in the building structure are mainly as follows:

1. the structure of the intersection mode is shown in figure 1, a branch pipe I1 and a branch pipe II 2 are connected with a main pipe 3 in the intersection mode, the node area of the intersection mode has relatively good force transmission, the appearance is general, and the intersection mode is more suitable for the condition that the angle of the two branch pipes is larger than 30 degrees.

2. The transverse partition plate transition mode is structurally shown in fig. 2, a first branch pipe 1 and a second branch pipe 2 of the transverse partition plate are connected with a main pipe 3 through a transverse partition plate 4, the node of the mode is general in force transmission, a stiffening plate needs to be added inside the transverse partition plate, and the transverse partition plate transition mode is general in appearance.

3. The structure of the semi-sphere transition mode is shown in figure 3, the branch pipe I1 and the branch pipe II 2 are connected with the main pipe 3 through the semi-sphere 5, and the node area of the mode has relatively good force transmission and general appearance.

4. The node area adopts a cast steel mode, and the node connection area can realize smooth transition and beautiful appearance, but the strength of the weld joint position is greatly influenced due to the limitation of the strength of cast steel materials, and the processing period is long and the cost is high.

The rigid connection node connection forms are commonly used in building structures, and the rigid connection of the components can be basically realized. However, the common node form has the defects of indirect force transmission, difficult processing, unattractive appearance and the like.

Based on the above description, a need exists for a Y-shaped connection of round steel pipes with direct force transmission, easy processing and beautiful appearance.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a Y shape connected node of circular steel pipe to solve the technical problem who exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a Y shape connected node of circular steel pipe, include: a branch pipe I, a branch pipe II and a main pipe; the first branch pipe and the second branch pipe are fixedly connected with the main pipe through a first elliptic conical surface and a second elliptic conical surface; the first elliptical conical surface and the second elliptical conical surface are arranged in mirror symmetry.

As a further technical scheme, an inserting plate is arranged between the first elliptic conical surface and the second elliptic conical surface.

As a further technical scheme, a plurality of transverse stiffening plates are arranged on two sides of the inserting plate and inside the elliptical conical surface I and the elliptical conical surface II.

As a further technical scheme, the first elliptical conical surface and the second elliptical conical surface are connected with the first branch pipe, the second branch pipe and the main pipe through welding.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

1. because the node area adopts the elliptical conical surface, is a single curved surface, can be processed by steel plates, and is convenient to process.

2. The elliptic conical surface of the node area is directly butt-welded with the upper member and the lower member, and the force transmission is direct.

3. The outer surface of the node area is clean and easy to be connected with other components.

4. The node is suitable for the condition that the included angle of the two branch pipes is large, the condition that the included angle of the two branch pipes is small, and the application range is relatively wide.

The utility model discloses but wide application in all kinds of steel construction and the integrated configuration that adopt Y shape node, the outer frame post that is particularly useful for super high-rise building structure adopts circular steel pipe batter post conversion and when having strict outward appearance requirement.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a node structure connected in a coherent manner in the prior art;

FIG. 2 is a schematic view of a prior art node structure connected by diaphragm plates in a transitional manner;

FIG. 3 is a schematic diagram of a prior art node structure connected in a hemispherical transition manner;

fig. 4 is a schematic view of a Y-shaped connection node structure of a circular steel pipe provided in the embodiment of the present invention;

fig. 5 is a schematic view of a Y-shaped connection node structure of a circular steel pipe without an elliptical cone according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of the embodiment of the present invention, in which a first elliptic conical surface is cut off from the elliptic conical surface;

fig. 7 is a schematic structural diagram of a first elliptic conical surface according to an embodiment of the present invention;

in the figure, 1, a first branch pipe, 2, a second branch pipe, 3, a main pipe, 4, a transverse clapboard, 5, a hemisphere, 6, a first elliptic conical surface, 7, a second elliptic conical surface, 8, an inserting plate and 9, the elliptic conical surface.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Referring to fig. 4 and 5, the present embodiment provides a Y-shaped connection node of a circular steel pipe, including: a branch pipe I1, a branch pipe II 2 and a main pipe 3; the branch pipe I1 and the branch pipe II 2 are fixedly connected with the main pipe 3 through an elliptical conical surface I6 and an elliptical conical surface II 7; the first elliptical conical surface 6 and the second elliptical conical surface 7 are arranged in mirror symmetry.

In this embodiment, as a further technical solution, an insert plate 8 is disposed between the first elliptic conical surface 6 and the second elliptic conical surface 7.

In this embodiment, as a further technical solution, a plurality of transverse stiffening plates 9 are disposed on two sides of the insert plate 8 and inside the elliptical

conical surfaces

6 and 7.

As a further technical scheme, the first elliptic conical surface 6 and the second elliptic conical surface 7 are connected with the first branch pipe 1, the second branch pipe 2 and the main pipe 3 through welding.

The calculation and interception processes of the first elliptic conical surface 6 and the second elliptic conical surface 7 are as follows:

in the present application, as shown in fig. 6 and 7, the diameters of the cross sections of the two branch pipes are equal, and the elliptical cone surface I6 and the elliptical cone surface II 7 are mirror images. The extent of the connecting section, i.e. the extent of the distance between the 8-shaped cross section of the branch pipe and the circular cross section of the main pipe, is first determined as a matter of fact. And then determining control equations of the elliptical cone surface I6 and the elliptical cone surface II 7 according to the 8-shaped interface and the circular interface. Firstly, in a space model, within a half range of an 8-shaped interface and a circular interface, randomly taking n₁、n₂、n₃… ni is total of i (i)>6) Extracting coordinates (x) of the i points in the space model₁,y₁,z₁)、(x₂,y₂,z₂)、(x₃,y₃,z₃)…(x_i,yi,zi)。

According to the analytic geometry, the equation for a spatially arbitrary elliptical cone is as follows:

(x-A)²/a²+(y-B)²/b²-(z-C)²/c²＝0

wherein a, B, C, A, B and C are all parameters, and x, y and z are variables. Substituting the coordinates of i (i >6) points on the boundary into the above formula respectively to obtain the following overdetermined equation set:

solving the overdetermined equation set by a least square method can obtain parameters a, B, C, A, B and C, determine an equation of the elliptical cone where the elliptical cone I is located so as to establish the elliptical cone 9, and intercept the elliptical cone I6.

And then, mirror-image copying the obtained elliptical conical surface I to obtain a symmetrical elliptical conical surface I and a symmetrical elliptical conical surface II, assembling the two conical surfaces in a node area, arranging an inserting plate in the center, and arranging a stiffening rib in the connecting node to obtain a connecting node. The Y-shaped connecting joint of the circular steel pipe with the double conical surface transition has the advantages of simple structure, definite force transmission, easiness in processing and attractive appearance. Compared with the existing Y-shaped connecting node of the circular steel pipe, the Y-shaped connecting node has obvious advantages.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a Y shape connected node of circular steel pipe which characterized in that includes: a branch pipe I, a branch pipe II and a main pipe; the first branch pipe and the second branch pipe are fixedly connected with the main pipe through a first elliptic conical surface and a second elliptic conical surface; the first elliptical conical surface and the second elliptical conical surface are arranged in mirror symmetry.

2. The Y-shaped connecting joint of the circular steel pipe as claimed in claim 1, wherein an insert plate is arranged between the first elliptic conical surface and the second elliptic conical surface.

3. The Y-shaped connecting joint of the circular steel pipe as claimed in claim 2, wherein a plurality of transverse stiffening plates are arranged on two sides of the inserting plate and inside the first elliptical conical surface and the second elliptical conical surface.

4. The Y-shaped connection node of a circular steel pipe as claimed in claim 1, wherein the first elliptical cone surface and the second elliptical cone surface are connected with the first branch pipe, the second branch pipe and the main pipe by welding.