CN215947856U

CN215947856U - Double-layer butterfly-shaped steel truss node

Info

Publication number: CN215947856U
Application number: CN202122174215.3U
Authority: CN
Inventors: 范荣如; 朱克进; 兰超; 秦杰; 顾得才
Original assignee: Jiangsu Huning Steel Mechanism Co Ltd
Current assignee: Jiangsu Huning Steel Mechanism Co Ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-03-04
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a double-layer butterfly-shaped steel truss node, which comprises: the lower end of the bridge tower is connected with the main truss through a group of connecting plates, and the upper stiffening strings are arranged on two sides of the bridge tower and connected with the two sides through the connecting plates. The double-layer butterfly-shaped steel truss node is simple in structure, reasonable in design and easy to manufacture, the upper stiffening chords on the two sides are connected through the bridge tower, the stability of the truss node is greatly improved, the safety of later use is improved, and the stability of connection between components is further improved due to the arrangement of the connecting plates.

Description

Double-layer butterfly-shaped steel truss node

Technical Field

The utility model belongs to the technical field of steel structure buildings, and particularly relates to a double-layer butterfly-shaped steel truss node.

Background

The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. Most of traditional bridges are pure concrete bridges, and with the continuous progress of technology, a plurality of bridges are combined by steel structures and concrete at present, and steel truss joints form necessary parts of the bridges.

Most of the existing steel truss nodes are complex in structure, the connection structure between the stiffening upper chord and the main truss is complex, the connection between the main supporting piece and the stiffening upper chord can be realized only by switching through a plurality of switching pieces, the structure is complex, the stability and the safety of the whole bridge are affected even by some unreasonable structures, the construction period is prolonged, and the construction cost of the bridge is increased.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects, the utility model aims to provide the double-layer butterfly-shaped steel truss node which is simple in structure, reasonable in design and easy to manufacture, the upper stiffening chords on the two sides are connected through the bridge tower, the stability of the truss node is greatly improved, the safety of later use is improved, and the stability of connection between components is further improved due to the arrangement of the connecting plates.

In order to achieve the above object, the present invention provides a double-layer butterfly steel truss node, including: the lower end of the bridge tower is connected with the main truss through a group of connecting plates, and the upper stiffening strings are arranged on two sides of the bridge tower and connected with the two sides through the connecting plates. The double-layer butterfly-shaped steel truss node is simple in structure, reasonable in design and easy to manufacture, the upper stiffening chords on the two sides are connected through the bridge tower, the stability of the truss node is greatly improved, the safety of later use is improved, and the stability of connection between components is further improved due to the arrangement of the connecting plates.

The bridge tower comprises a lower section supporting column, a butterfly connecting section and an upper section connecting column, the bottom of the lower section supporting column is connected with the main truss through a group of connecting plates, the butterfly connecting section is arranged at the upper end of the lower section supporting column, the outer side of the joint of the butterfly connecting section and the butterfly connecting section is provided with a connecting plate for connection, and the upper section connecting column is arranged above the butterfly connecting section. The butterfly connection section is arranged, so that multidirectional connection is realized, the structure of the whole node is optimized, the safety of the bridge is guaranteed, meanwhile, the use of installation and switching parts is reduced, the construction cost is reduced, and meanwhile, the construction difficulty is also reduced.

Furthermore, the main truss comprises a main truss upper chord, a main truss lower chord and a reinforcing support frame assembly, the main truss upper chord and the main truss lower chord are arranged in an up-down opposite mode, the reinforcing support frame assembly is arranged between the main truss upper chord and the main truss lower chord, and the lower section support column is arranged above the main truss upper chord.

Furthermore, the main truss upper chord comprises a group of upper truss boxes, a group of cross connecting nodes and a group of upper truss connecting nodes, the truss boxes are connected through the cross connecting nodes and the upper truss connecting nodes, and the cross connecting nodes and the upper truss connecting nodes are arranged at intervals.

Preferably, the main truss lower chord comprises a group of lower truss boxes, a group of inverted T-shaped connecting nodes and a group of lower truss connecting nodes, the lower truss boxes are connected with the lower truss connecting nodes through the inverted T-shaped connecting nodes, and the inverted T-shaped connecting nodes and the lower truss connecting nodes are arranged at intervals.

Furthermore, strengthen the support frame subassembly and include a set of vertical support frame and a set of slant support frame, vertical support frame is located perpendicularly between main purlin upper chord and the main purlin lower chord, slant support frame locates the both sides of vertical support frame, and with vertical support frame and slant support frame that correspond upper and lower both ends respectively with the cross connected node in the main purlin upper chord that corresponds or go up truss connected node and main purlin lower chord type of falling T connected node or truss connected node down.

In addition, the upper segment connecting column comprises a column body and a group of brackets, and the brackets are reversely arranged above the column body.

Preferably, the bracket is arc-shaped.

Preferably, the butterfly-shaped connecting section comprises a middle section connecting body, an upper port and a lower port are respectively arranged at the upper end and the lower end of the middle section connecting body, extending frames are arranged at two sides of the middle section connecting body, the lower section supporting column is connected with the lower port through a connecting plate, the lower connecting port is arc-shaped to the extending frames, the upper stiffening chord is connected with the extending frames, and the column body is connected with the upper port.

The upper stiffening chord is arc-shaped, a group of connecting supports are arranged below the upper stiffening chord, and the connecting supports are connected with the main truss through a group of hanging rods.

The technical scheme shows that the utility model has the following beneficial effects:

1. the double-layer butterfly-shaped steel truss node is simple in structure, reasonable in design and easy to manufacture, the upper stiffening chords on the two sides are connected through the bridge tower, the stability of the truss node is greatly improved, the safety of later use is improved, and the stability of connection between components is further improved due to the arrangement of the connecting plates.

2. The butterfly connection sections are arranged, so that multidirectional connection is realized, the structure of the whole node is optimized, the safety of the bridge is guaranteed, the use of installation and transfer components is reduced, the construction cost is reduced, and the construction difficulty is reduced.

3. The arrangement of the vertical support frame and the oblique support frame greatly improves the connection stability of the main truss, and further improves the stability of the whole steel truss node structure and the use safety of the bridge.

Drawings

FIG. 1 is a schematic structural diagram of a double-layer butterfly-shaped steel truss node disclosed by the utility model;

FIG. 2 is a schematic view of the connection between the truss and the upper stiffening chord of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, the double-layer butterfly steel truss node comprises: the bridge tower comprises a main truss 1, a bridge tower 2 and a group of upper stiffening strings 3, wherein the bridge tower 2 comprises a lower section supporting column 21, a butterfly connecting section 22 and an upper section connecting column 23, the bottom of the lower section supporting column 21 is connected with the main truss 1 through a group of connecting plates 4, the butterfly connecting section 22 is arranged at the upper end of the lower section supporting column 21, the connecting plates 4 are arranged on the outer sides of the joints of the two sections, the upper section connecting column 23 is arranged above the butterfly connecting section 22, and the upper stiffening strings 3 are arranged on two sides of the bridge tower 2 and are connected through the connecting plates 4.

In this embodiment, the main truss 1 includes a main truss upper chord 11, a main truss lower chord 12 and a stiffening support frame assembly 13, the main truss upper chord 11 and the main truss lower chord 12 are arranged oppositely up and down, the stiffening support frame assembly 13 is arranged between the main truss upper chord 11 and the main truss lower chord 12, and the lower support column 21 is arranged above the main truss upper chord 11.

In this embodiment, the main truss upper chord 11 includes a group of upper truss boxes 111, a group of cross connection nodes 112 and a group of upper truss connection nodes 113, the truss boxes 111 are connected with each other through the cross connection nodes 112 and the upper truss connection nodes 113, and the cross connection nodes 112 and the upper truss connection nodes 113 are arranged at intervals.

In this embodiment, the main truss lower chord 12 includes a group of lower truss boxes 121, a group of inverted T-shaped connecting nodes 122 and a group of lower truss connecting nodes 123, the lower truss boxes 121 are connected to each other through the inverted T-shaped connecting nodes 122 and the lower truss connecting nodes 123, and the inverted T-shaped connecting nodes 122 and the lower truss connecting nodes 123 are arranged at intervals.

In this embodiment, the reinforced support frame assembly 13 includes a set of vertical support frames 131 and a set of diagonal support frames 132, the vertical support frames 131 are vertically disposed between the main truss upper chord 11 and the main truss lower chord 12, the diagonal support frames 132 are disposed on two sides of the vertical support frames 131, and are connected to the corresponding vertical support frames 131 and the corresponding diagonal support frames 132 at upper and lower ends thereof respectively with the corresponding cross connection node 112 or upper truss connection node 113 in the main truss upper chord 11 and the corresponding main truss lower chord 12 inverted T-shaped connection node 122 or lower truss connection node 123.

In this embodiment, the upper connecting column 23 includes a column 231 and a set of brackets 232, and the brackets 232 are reversely disposed above the column 231.

The bracket 232 in this embodiment is arcuate.

In this embodiment, the butterfly connection section 22 includes a middle connection body 221, the upper and lower ends of the middle connection body 221 are respectively provided with an upper port and a lower port, the two sides are provided with extension frames 222, the lower support column 21 is connected with the lower port through a connection plate 4, the lower connection port is arc-shaped to the extension frames 222, the upper stiffening chord 3 is connected with the extension frames 222, and the column 231 is connected with the upper port.

In this embodiment, the upper stiffening chord 3 is arc-shaped, a group of connecting brackets 31 are arranged below the upper stiffening chord 3, and the connecting brackets 31 are connected with the main truss 1 through a group of suspension rods.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims

1. The utility model provides a double-deck butterfly-shaped steel truss node which characterized in that: the method comprises the following steps: the lower end of the bridge tower (2) is connected with the main truss (1) through a group of connecting plates (4), the upper stiffening chord (3) is arranged on two sides of the bridge tower (2), and the upper stiffening chord and the lower stiffening chord are connected through the connecting plates (4).

2. The double-layer butterfly steel truss node of claim 1, wherein: the bridge tower (2) comprises a lower section supporting column (21), a butterfly connecting section (22) and an upper section connecting column (23), the bottom of the lower section supporting column (21) is connected with the main truss (1) through a group of connecting plates (4), the butterfly connecting section (22) is arranged at the upper end of the lower section supporting column (21), the outer side of the joint of the butterfly connecting section and the main truss is provided with the connecting plates (4) for connection, and the upper section connecting column (23) is arranged above the butterfly connecting section (22).

3. The double-layer butterfly steel truss node of claim 2, wherein: the main truss (1) comprises a main truss upper chord (11), a main truss lower chord (12) and a reinforcing support frame assembly (13), the main truss upper chord (11) and the main truss lower chord (12) are arranged vertically and oppositely, the reinforcing support frame assembly (13) is arranged between the main truss upper chord (11) and the main truss lower chord (12), and the lower section support column (21) is arranged above the main truss upper chord (11).

4. The double-layer butterfly steel truss node of claim 3, wherein: the main truss upper chord (11) comprises a group of upper truss box bodies (111), a group of cross connecting nodes (112) and a group of upper truss connecting nodes (113), the truss box bodies (111) are connected with the upper truss connecting nodes (113) through the cross connecting nodes (112), and the cross connecting nodes (112) and the upper truss connecting nodes (113) are arranged at intervals.

5. The double-layer butterfly steel truss node of claim 4, wherein: the main truss lower chord (12) comprises a group of lower truss boxes (121), a group of inverted T-shaped connecting nodes (122) and a group of lower truss connecting nodes (123), the lower truss boxes (121) are connected with the lower truss connecting nodes (123) through the inverted T-shaped connecting nodes (122), and the inverted T-shaped connecting nodes (122) and the lower truss connecting nodes (123) are arranged at intervals.

6. The double-layer butterfly steel truss node of claim 5, wherein: the reinforced support frame assembly (13) comprises a set of vertical support frames (131) and a set of inclined support frames (132), the vertical support frames (131) are vertically arranged between the upper chord (11) and the lower chord (12) of the main truss, the inclined support frames (132) are arranged on two sides of the vertical support frames (131) and are respectively connected with the upper ends and the lower ends of the corresponding vertical support frames (131) and the inclined support frames (132) with the corresponding cross connection nodes (112) or upper truss connection nodes (113) in the upper chord (11) of the main truss and the inverted T-shaped connection nodes (122) or lower truss connection nodes (123) of the lower chord (12) of the main truss.

7. The double-layer butterfly steel truss node of claim 2, wherein: the upper section connecting column (23) comprises a column body (231) and a group of brackets (232), and the brackets (232) are reversely arranged above the column body (231).

8. The double-layer butterfly steel truss node of claim 7, wherein: the bracket (232) is arc-shaped.

9. The double-layer butterfly steel truss node of claim 7, wherein: the butterfly connecting section (22) comprises a middle section connecting body (221), an upper end port and a lower end port are respectively arranged at the upper end and the lower end of the middle section connecting body (221), extension frames (222) are arranged on two sides of the middle section connecting body, the lower section supporting column (21) is connected with the lower end port through a connecting plate (4), the lower connecting end port is arc-shaped to the extension frames (222), the upper stiffening chord (3) is connected with the extension frames (222), and the column body (231) is connected with the upper end port.

10. The double-layer butterfly steel truss node of claim 2, wherein: the upper stiffening chord (3) is arc-shaped, a group of connecting supports (31) are arranged below the upper stiffening chord, and the connecting supports (31) are connected with the main truss (1) through a group of hanging rods (5).