CN114150774B

CN114150774B - Assembly type truss node, assembly type truss structure and assembly method

Info

Publication number: CN114150774B
Application number: CN202111375803.1A
Authority: CN
Inventors: 张爱林; 邹明; 张艳霞; 上官广浩; 王杰
Original assignee: Beijing University of Civil Engineering and Architecture
Current assignee: Beijing University of Civil Engineering and Architecture
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2023-03-24
Anticipated expiration: 2041-11-19
Also published as: CN114150774A

Abstract

The invention provides an assembly type truss node, an assembly type truss structure and an assembly method, which belong to the technical field of assembly trusses, and comprise a plurality of first connecting pieces, three connecting end faces, a plurality of second connecting pieces and a plurality of third connecting end faces, wherein one end face of a flange plate is welded with one end face of a rod piece and one end face of each first connecting piece; and a plurality of second connecting members having bolt holes, each second connecting member being configured such that, in connection cooperation, a connection face with the first connecting members of the two rod members is connected by a bolt to form a connection between the two first connecting members. The truss bolt assembling and constructing device is simple in structure, convenient to use, high in rigidity, good in mechanical property, simple in structure, convenient to construct, capable of improving the construction efficiency, reducing the labor cost, safe, effective, green and environment-friendly, and beneficial to popularization, and the truss bolt assembling and constructing method is simple in structure and convenient to construct.

Description

Assembly type truss node, assembly type truss structure and assembly method

Technical Field

The invention relates to the technical field of assembly trusses, in particular to an assembly truss node, an assembly truss structure and an assembly method.

Background

The truss structure rod piece is only stressed by axial force, has good mechanical property and saves materials, and is widely applied to structures with large span. However, most of the existing truss structures adopt a field welding construction technology, so that the environment is polluted, the construction progress is slow, the welding quality is difficult to control, a large number of technical workers are needed, and a large amount of manpower and material resources are consumed.

Disclosure of Invention

The invention aims to provide an assembly type truss node, an assembly type truss structure and an assembly method which adopt a modularized assembly type truss structure, are connected by bolts on a construction site, have high construction speed and low requirement on constructors, are green and environment-friendly and meet the requirements of carbon neutralization and carbon peak reaching so as to solve at least one technical problem in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

in one aspect, the present invention provides an assembled truss joint, comprising:

the flange plate is provided with a plurality of bolt holes and a plurality of rectangular holes, one surface of the flange plate is welded with one end surface of the rod piece and one end surface of the first connecting piece, the bolt holes are positioned on the outer side of the connecting position between the flange plate and the rod piece as well as the first connecting piece, and the rectangular holes are positioned between the two first connecting pieces;

the first connecting pieces comprise three connecting end surfaces, the first end surfaces are welded with the rod pieces, the second end surfaces are welded with the flange plates, the third end surfaces are connected with the second connecting pieces through bolts, and the third connecting end surfaces are provided with bolt holes;

and the second connecting pieces are provided with bolt holes, and each second connecting piece is arranged to be connected with the connecting surface of the first connecting piece of the two rod pieces through bolts in connection matching to form connection between the two first connecting pieces, wherein the third end surfaces of the two first connecting pieces are butted.

Preferably, the first connecting piece is a stiffening rib plate, and the second connecting piece is a rectangular steel plate.

Preferably, the first connecting piece is longer along the direction of the rod piece, the bolt hole is formed in the first connecting piece, and the two first connecting pieces are closer to each other.

Preferably, a rectangular hole is formed in the flange plate between the two adjacent first connecting pieces, the second connecting piece penetrates through the rectangular hole, and in connection fit, the second connecting piece is abutted against the first connecting pieces on two sides of the rectangular hole respectively and is in bolted connection with the two first connecting pieces.

Preferably, the width of the second connecting piece is smaller than the distance from the edge of the flange plate to the outer side of the rod piece, and the thickness of the second connecting piece is smaller than the width of the rectangular hole.

Preferably, the width of the rectangular hole is equal to the distance between the two adjacent first connecting pieces, and the length of the rectangular hole is determined according to engineering calculation and is not greater than the flange overhanging length.

In a second aspect, the present invention provides an assembled truss structure comprising: a plurality of truss modules, each of the truss modules comprising a chord, a web, and an assembled truss node as described above; the assembled truss nodes are arranged at two ends of each truss module; the assembled truss nodes are positioned between the connecting parts; the number and the size of the chord members and the web members of the assembly connecting area are the same as those of the non-assembly connecting area.

Preferably, the truss modules are a part of the truss which is integrally split, the size of each truss module is determined according to the size of the transport tool, and the truss modules are all connected through bolts.

In a third aspect, the present invention provides a method for manufacturing a truss node, including:

after the rod piece parts of the truss modules are welded, the connecting pieces are welded to the connecting parts, the connecting pieces are primarily fixed by bolts before being welded, and the bolts are unscrewed after all the connecting pieces are welded to the rod pieces, so that the successful installation of the follow-up truss modules is ensured.

In a fourth aspect, the present invention provides a method for assembling a truss node, including:

and butting the two truss modules, connecting the butting flanges by using bolts, penetrating the second connecting piece from the rectangular hole of the flange to be butted with the two first connecting pieces, and connecting the two truss modules by using the bolts.

The invention has the beneficial effects that: simple structure, convenient to use, rigidity is high, have good mechanical properties, has realized truss modular processing, and bolt assembly construction, simple structure, construction convenience have improved the efficiency of construction simultaneously, have reduced the cost of labor, and is safe effective, green does benefit to the popularization.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is an assembly structure diagram of two modules of an assembly type truss according to an embodiment of the present invention.

Fig. 2 is a block diagram of an assembled truss according to an embodiment of the present invention.

Fig. 3 is an exploded view of a flange-insert plate type truss joint structure according to an embodiment of the present invention.

Fig. 4 is an assembly view of the spile connecting members and bolts of the flange spile type truss joint shown in fig. 3.

Fig. 5 is a view showing a structure of a node-side element in fig. 3.

Fig. 6 is a flowchart of an assembling method of an assembled truss according to an embodiment of the present invention.

Wherein: 1-a first connector; 2-a second connector; 3-a flange plate; 4-a first bolt; 5-a rod member; 6-a second bolt; 32-a first bolt hole; 33-rectangular holes; 11-connecting surface; 12-a second bolt hole; 22-third bolt hole.

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 by way of the drawings are illustrative only and are not to be construed as limiting the invention.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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

In the description of the present specification, the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present technology.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "coupled," and "disposed" are intended to be inclusive and mean, for example, that they may be fixedly coupled or disposed, or that they may be removably coupled or disposed, or that they may be integrally coupled or disposed. The specific meaning of the above terms in the present technology can be understood by those of ordinary skill in the art as appropriate.

For the purpose of facilitating an understanding of the present invention, the present invention will be further explained by way of specific embodiments with reference to the accompanying drawings, which are not intended to limit the present invention.

It should be understood by those skilled in the art that the drawings are merely schematic representations of embodiments and that the elements shown in the drawings are not necessarily required to practice the invention.

Examples

In this embodiment, an assembled truss node is provided, includes:

the first connecting pieces comprise three connecting end faces, the first end faces are welded with the rod pieces, the second end faces are welded with the flange plates, the third end faces are in bolted connection with the second connecting pieces, and the third connecting end faces are provided with bolt holes;

The first connecting piece is a stiffening rib plate, and the second connecting piece is a rectangular steel plate.

The first connecting pieces are longer in length along the direction of the rod piece, bolt holes are formed in the first connecting pieces, and the two first connecting pieces are closer to each other. And in connection fit, the second connecting pieces are respectively abutted against the first connecting pieces on two sides of the rectangular hole and are in bolted connection with the two first connecting pieces.

The width of the second connecting piece is smaller than the distance from the edge of the flange plate to the outer side of the rod piece, and the thickness of the second connecting piece is smaller than the width of the rectangular hole. The width of the rectangular hole is equal to the distance between the two adjacent first connecting pieces, and the length of the rectangular hole is determined according to engineering calculation and is not greater than the flange overhanging length.

In this embodiment, an assembled truss structure is further provided, including: a plurality of truss modules, each of the truss modules comprising a chord, a web, and an assembled truss node as described above; the assembled truss nodes are arranged at two ends of each truss module; the assembled truss nodes are positioned in the middle of the connecting part, and the lengths of the pipes on the two sides of the assembled truss nodes are equal; the number and the size of the chord members and the web members of the assembly connecting area are the same as those of the non-assembly connecting area.

The truss modules are a part of the whole truss, the size of each truss module is determined according to the size of the transport tool, and the truss modules are all connected through bolts.

Specifically, as shown in fig. 1 to fig. 6, the assembled truss and flange plate-inserting type truss node (i.e., assembled truss node) provided in this embodiment includes: a rod end connector comprising: flange plate 3, first connecting piece 1 and second connecting piece 2. The rod piece end connecting piece is connected with the rod piece 5, and the rod piece 5 is connected through the flange plate 3 at the end part of the rod piece, the first connecting piece 1 and the second connecting piece 2. The rods in the truss structure are tubular (such as various types of steel pipes), and the wall of the tubular rod 5 has a certain thickness.

In some embodiments, the rod end connectors are welded to the rods 5, one rod end connector being connected to one end of each rod 5 to perform the assembly between the rods 5. A first connecting member 1 and a flange plate 3, and a second connecting member 2 to connect two rod members 5. The second connecting piece 2 is connected with the first connecting pieces 1 of the two rod pieces through bolts to form connection between the two first connecting pieces 1.

In some embodiments, a fabricated truss module has a plurality of directional fabricated nodes. It should be understood that the present embodiments do not limit the direction of the nodes, and any truss structure of the rods is possible. Without limitation, the fabricated truss node of the embodiments of the present application is particularly suitable for a truss of a space structure, but is not limited thereto.

In some embodiments, referring to fig. 3 to 5, the flange plate 3 has a plurality of first bolt holes 32 and a plurality of rectangular holes 33. One face of the flange plate 3 is arranged to be welded to one end face of the rod 5. Wherein the plurality of first bolt holes 32 are located outside the connection position between the flange plate 3 and the rod 5 so that the flange plate 3 can be connected with the adjoining flange. In some embodiments, the flange plate 3 is a circular ring plate.

In some embodiments, the first connecting part 1 has two end faces and a connecting face 11. The first end face of the first connecting part 1 is welded to one face of the flange plate 3 and the rod 5, so that the rod 5 is fixedly connected to the flange plate 3 and the first connecting part 1. In the connection fitting, 1 connection surface 11 of the first connection element 1 abuts against the second connection element 2 and is connected thereto by means of a screw. The connection surface 11 of the first connector 1 has a second bolt hole 12, and the position of the second bolt hole 12 is matched with the position of a third bolt hole 22 on the second connector 2, so that the bolt 6 passes through the first bolt hole 12 and the third bolt hole 22 of the first connector 1 and the second connector 2 to form a bolt connection.

In some embodiments, the second connector 2 comprises two connecting surfaces, which are elongated. The connecting surfaces are in connection fit, abut against and form a screw connection with the two connecting surfaces 11 of the two first connecting pieces 1. In some embodiments, referring to fig. 3 and 4, the second connector 2 has a third bolt hole 22, the position of the third bolt hole 22 is matched with the position of the second bolt hole 12 of the first connector 1, so that a bolt passes through the three to form a bolt connection.

The method of assembling the truss joint will be described below. Referring to fig. 6, the method for assembling a truss node according to the embodiment of the present application includes steps S801 to S807.

In some embodiments, the construction method of the truss node comprises: the truss module, the rod piece 5 of the node, the flange plate 3, the first connecting piece 1 and the second connecting piece 2 are prefabricated in a factory, and the rod piece 5, the flange plate 3 and the first connecting piece 1 are welded together in sequence in the factory. On the construction site, the flange plates 3 of the two modules are connected through first bolts 4, and the first connecting pieces 1 are connected with the second connecting pieces through second bolts 6.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive changes in the embodiments of the present invention.

Claims

1. An assembled truss joint, comprising:

the first connecting pieces comprise three connecting end faces, the first end faces are welded with the rod pieces, the second end faces are welded with the flange plates, the third end faces are connected with the second connecting pieces through bolts, and the third end faces are provided with bolt holes;

2. The fabricated truss joint of claim 1 wherein the first connector is a stiffener and the second connector is a rectangular steel plate.

3. The fabricated truss joint of claim 1 wherein the first connectors are longer in length along the rods, and have bolt holes therein, and wherein the first connectors are closer together.

4. The fabricated truss joint of claim 1 wherein a rectangular hole is formed in the flange plate between two adjacent first connectors, and the second connector passes through the rectangular hole, and in connection engagement, the second connector abuts against the first connectors on both sides of the rectangular hole, respectively, and is bolted to the two first connectors.

5. The fabricated truss joint of claim 1 wherein the second connector has a width no greater than the distance from the edge of the flange plate to the outside of the rod and a thickness less than the width of the rectangular aperture.

6. The fabricated truss joint of claim 1 wherein the width of the rectangular aperture is equal to the distance between two adjacent first connectors, and the length of the rectangular aperture is determined by engineering calculations and is not greater than the flange overhang length.

7. An assembled truss structure, comprising: a plurality of truss modules, each of the truss modules comprising a chord, a web, and the fabricated truss node of any of claims 1-6; the assembled truss nodes are arranged at two ends of each truss module; the assembled truss nodes are positioned between the connecting parts; the number and the size of the chord members and the web members in the assembly connecting area are the same as those in the non-assembly connecting area.

8. The fabricated truss structure of claim 7, wherein the truss modules are a part of the truss divided in one piece, the truss modules are sized according to the size of the transportation means, and the truss modules are all connected by bolts.

9. A method of assembling an assembled truss structure as defined in claim 7 or 8, comprising:

the connecting pieces are welded to the connecting parts after the rod pieces of the truss modules are welded, the connecting pieces are primarily fixed by bolts before being welded, and the bolts are unscrewed after all the connecting pieces are welded on the rod pieces, so that the subsequent truss modules are ensured to be successfully installed;