Assembled truss node and truss node assembly method

Abstract

The present application relates to an assembled truss node and an assembly method of the truss node, wherein the assembled truss node comprises: a rod end connector, which comprises: a flange plate, one side of which is welded to one end face of the rod; a first connector, which has multiple connection faces, one end of which is welded to the other side of the flange plate; multiple second connectors, which are connected to the connection faces of the first connectors of the two rods by bolts in the connection cooperation; and a sleeve, which comprises at least two sleeve elements, so that the sleeve can be axially separated or combined; the sleeve element, in the connection cooperation, is sleeved outside the second connector and the first connectors of the two rods, and the adjacent sleeve elements are connected by bolts to form a sleeve as a whole, and the two ends of the sleeve element are connected to the flange plates of the two rods by bolts. The node has high rigidity, good stability, good mechanical properties, and realizes bolt assembly construction.

Description

Technical Field

[0001] The present application relates to the field of truss structures, and in particular to an assembled truss node and an assembly method of the truss node. Background Art

[0002] Space truss structures have rich shapes, few rods, economical materials, good mechanical performance, and are widely used in large-span buildings such as exhibition halls, airports, and gymnasiums. Currently, space truss structures all use welded nodes. Summary of the invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a prefabricated truss node and a method for assembling a truss node.

[0004] In a first aspect, the present application provides a prefabricated truss node, comprising:

[0005] A rod end connector, comprising: a flange plate having a plurality of bolt holes, one side of the flange plate being configured to be welded to an end face of the rod, wherein the plurality of bolt holes are located outside a connection position between the flange plate and the rod; a first connector having two end faces and a plurality of connection faces extending radially from a center, the first end face of the first connector being configured to be welded to the other side of the flange plate, wherein the plurality of connection faces have bolt holes;

[0006] A plurality of second connecting members, each of which has bolt holes, is configured to be connected to the connecting surfaces of the first connecting members of the two rod members by bolts in the connection cooperation, so as to form a connection between the two first connecting members, wherein the second end surfaces of the two first connecting members are butted against each other; and

[0007] A sleeve comprises at least two sleeve elements, which enable the sleeve to be axially separated or combined; wherein the at least two sleeve elements are configured to be sleeved outside the second connecting member and the first connecting member of the two rod members in the connection cooperation, and adjacent sleeve elements are connected by bolts to be combined into a sleeve as a whole, and the two ends of the at least two sleeve elements are connected to the flange plates of the two rod members by bolts.

[0008] In some embodiments, the second connector is an angle connector having two connecting edges at a predetermined angle; wherein the two connecting edges are configured to abut and be bolted to two connecting surfaces adjacent to the first connectors of the two rods in the connection fit.

[0009] In some embodiments, the first connecting member is a cross steel and the second connecting member is an angle steel.

[0010] In some embodiments, a plurality of fan-shaped ribs are welded on the inner side of at least a portion of the sleeve element, and the plurality of fan-shaped ribs are distributed axially along the sleeve element, and each fan-shaped rib extends toward the center of the sleeve; the plurality of fan-shaped ribs are configured to be positioned in the space enclosed by the second connecting member during the connection.

[0011] In some embodiments, the length of the second connecting member is less than the sum of the lengths of the two first connecting members, so that when the second connecting member is assembled, gaps are formed between the two ends of the second connecting member and the flange plates of the two rods.

[0012] In some embodiments, both sides of the connection surface of the first connection member abut against the second connection member respectively during the connection, and the connection surface is connected to the second connection members on both sides thereof by bolts.

[0013] In some embodiments, the outer diameter of the sleeve is equal to the outer diameter of the rod.

[0014] In some embodiments, the sleeve element includes: a first ear plate having a plurality of bolt holes and configured for bolt connection between the sleeve elements; and a second ear plate extending radially outwardly and having a plurality of bolt holes and configured for bolt connection with the flange plate.

[0015] In some embodiments, the centers of the flange plate, the first connecting member, and the sleeve are the same.

[0016] In a second aspect, the present application provides a method for assembling a truss node, comprising:

[0017] Connecting multiple connection surfaces of the first connection members of the two rods to the second connection member by bolts to form a horizontal connection of the two first connection members; wherein one end surface of each rod is welded to one surface of the flange plate, the first connection member has two end surfaces and multiple connection surfaces extending radially from the center, and the first end surface of the first connection member is welded to the other surface of the flange plate;

[0018] The sleeve element is sleeved outside the first connecting member connected by the second connecting member, and adjacent sleeve elements are connected by bolts to form a sleeve as a whole, and the two ends of the sleeve element are connected to the flange plates of the two rods by bolts.

[0019] The above-mentioned technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the solution provided by the embodiment of the present application has high rigidity, good stability, good mechanical properties, realizes bolt assembly construction, and at the same time has a simple structure and simple construction, which is conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 An exploded view of an implementation of a prefabricated truss node provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 The schematic diagram of the assembly of the rods and the rod end connectors in the assembled truss node shown;

[0024] Figure 3 for Figure 2 The schematic diagram of the assembly between the rods shown;

[0025] Figure 4 for Figure 1 A schematic diagram of the structure of the middle sleeve element;

[0026] Figure 5 for Figure 4 A partial cross-sectional structural schematic diagram of the assembly of the sleeve element and the rod member shown;

[0027] Figure 6 It is a schematic diagram of the relative positions of the fan-shaped ribs and the bolts;

[0028] Figure 7 for Figure 1 The assembly diagram of the fabricated truss node shown; and

[0029] Figure 8 A flowchart of an implementation of a method for assembling a truss node provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] In the subsequent description, suffixes such as "module", "component" or "unit" used to represent elements are used only to facilitate the description of the present application and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner. "Multiple" means more than one.

[0032] refer to Figures 1 to 7As shown, the assembled truss node in the embodiment of the present application includes: a rod end connector, which includes: a flange plate 2 and a first connector 3. A second connector 4; and a sleeve, which includes at least two sleeve elements 5. The rod end connector connects the rods 1, and the rods 1 are connected through the rod end connector, the second connector 4 and the sleeve. Non-limitingly, the rods in the truss structure are tubular (such as various types of steel pipes), and the tube wall of the tubular rod 1 has a certain thickness.

[0033] In some embodiments, the rod end connector is welded to the rod 1, and one end of each rod 1 is connected to a rod end connector to assemble the rods 1. The second connector 4 and at least two sleeve elements 5 are connected to the rod end connector to connect the two rods 1. The second connector 4 is bolted to the first connectors 3 of the two rods to form a horizontal connection between the two first connectors 3. The at least two sleeve elements 5 enable the sleeve to be separated or combined axially, so that the sleeve can be sleeved outside the first connector 3 of the two rods 1 connected by the second connector 4, and the sleeve elements 5 are bolted to form a sleeve as a whole.

[0034] In some embodiments, the rod 1 has two end faces, and at least one end face of the rod 1 is welded to the rod end connector. In other embodiments, the rod 1 has more than two end faces, and at least part of the end faces of the rod 1 are welded to the rod end connector. It should be understood that the embodiments of the present application do not limit the rod 1, and any rod of a truss structure is feasible. Non-restrictive, the assembled truss node of the embodiments of the present application is particularly suitable for trusses of large-span space structures, but is not limited thereto.

[0035] In certain embodiments, reference Figure 2 As shown, the flange plate 2 has a plurality of bolt holes 21. One side of the flange plate 2 is configured to be welded to an end face of the rod 1. The plurality of bolt holes 21 are located outside the connection position between the flange plate 2 and the rod 1, so that the flange plate 2 can be bolted to one end of the sleeve element 5. In some embodiments, the flange plate 2 is a circular plate, and the thickness of the circular plate is greater than the wall thickness of the rod 1.

[0036] In some embodiments, the first connecting member 3 has two end faces and a plurality of connecting faces 31 extending radially from the center. The first end face of the first connecting member 3 is welded to the other side of the flange plate 2, thereby forming a fixed connection between the rod 1, the flange plate 2 and the first connecting member 3. A predetermined angle is formed between the plurality of connecting faces 31, and a fan-shaped space is formed between adjacent connecting faces 31. In the connection, the plurality of connecting faces 31 of the first connecting member 3 abuts against the second connecting member 4 and is connected thereto by bolts. The connecting face 31 of the first connecting member 3 has a bolt hole 32, and the position of the bolt hole 32 is adapted to the bolt hole on the second connecting member 4, so that the bolt passes through the bolt holes 31 and 32 of the first connecting member 3 and the second connecting member 4 to form a bolt connection.

[0037] In some embodiments, each connection surface 31 of the first connection member 3 has the same size. In some embodiments, the angles between adjacent connection surfaces 31 are equal. For example, in some embodiments, the first connection member 3 has three connection surfaces 31, and the angles between adjacent connection surfaces 31 are all 120°. In some embodiments, the thickness of the connection surface 31 is greater than the wall thickness of the rod 1. But it is not limited thereto.

[0038] In some embodiments, the second connector 4 includes a connecting edge, which is in the shape of an elongated strip. In the connection fit, the connecting edge abuts against a connecting surface 31 of the first connector 3 and forms a bolt connection therewith. In some embodiments, the second connector 4 includes two connecting edges, and the two connecting edges are bent into a predetermined angle. The angle of the connecting edge of the second connector 4 is adapted to the angle between the adjacent connecting surfaces 31 of the first connector 3, so that the second connector 4 can be arranged in a fan-shaped space surrounded by two adjacent connecting surfaces 31 of the first connector 3, and the two connecting edges abut against the corresponding connecting surfaces 31. A portion of the second connector 4 is connected to the first connector 3 of one rod 1, and the other portion is connected to the first connector 3 of another rod 1, forming a horizontal connection between the two first connectors 3.

[0039] In some embodiments, the first connecting member 3 is a cross steel with four connecting surfaces; the second connecting member 4 is an angle steel with two connecting edges. In some embodiments, a cross steel is welded on the flange plate, the thickness of the cross steel is greater than the rod, the cross steel has four connecting surfaces, each connecting surface is provided with at least two bolt holes, each connecting surface has the same size, and the center of the cross steel is consistent with the center of the flange. Bolt holes are provided on the angle steel to connect the cross steels on the two rods, a total of four angle steels, and the four angle steels are of the same size.

[0040] In certain embodiments, reference Figure 3 and Figure 5As shown, the second connecting member 4 has a bolt hole 41, and the position of the bolt hole 41 is adapted to the position of the bolt hole 32 of the first connecting member 3, so that the bolt passes through the two to form a bolt connection. Figure 3 and 5 The first connecting member (marked as 1a and 1b) Figure 3 and 5 The connection surfaces (marked as 3a and 3b) in Figure 3 and 5 The second connecting member 4 is connected with the first connecting member 3a and the second connecting member 3b by bolts (marked as 31a and 31b) to form a connection between the two first connecting members 3a and 3b. The second end faces of the two first connecting members 3a and 3b are butted against each other, and a part of the second connecting member 4 is connected to the first connecting member 3a, and another part is connected to the first connecting member 3b.

[0041] In some embodiments, the second connecting member 4 has a plurality of bolt holes 41 on the connecting edge, and the connecting surface 31 of the first connecting member 3 has at least two bolt holes 32. The at least two bolt holes 32 are evenly spaced on the connecting surface 31, and the plurality of bolt holes 41 are evenly spaced on the connecting edge of the second connecting member 4. In the connection fit, some of the bolt holes 41 overlap with the bolt holes 32 on the connecting surface 31 of the first connecting member 3 connected to the rod 1, and some of the bolt holes 41 overlap with the bolt holes 32 on the connecting surface 31 of the first connecting member 3 connected to the other rod 1, so that the second connecting member 4 is connected to the connecting surfaces 31 of the two first connecting members 3 by bolts.

[0042] In some embodiments, the sleeve includes at least two sleeve elements 5, and the at least two sleeve elements 5 enable the sleeve to be axially separated or combined, wherein the sleeve is convenient to be sleeved outside the first connecting member 3 and the second connecting member 4 when separated, and forms a sleeve as a whole when combined. Figure 5 and 6 As shown, the at least two sleeve elements 5 are sleeved outside the second connecting member 4 and the first connecting members 3a and 3b of the two rods in the connection cooperation. Figure 7 As shown, adjacent sleeve elements 5 are bolted to form a sleeve as a whole, and both ends of all sleeve elements 5 are bolted to the flange plates 2a and 2b of the two rods 1a and 1b. Figure 7 As shown, the sleeve is integrally located between the flange plates 2 of the two rods 1 .

[0043] In certain embodiments, reference Figure 1 , 3 As shown in Figures 5 and 6, the second connector 4 is an angle connector having two connecting edges at a predetermined angle. Figure 3As shown, the two connecting edges of the corner connector, in the connection cooperation, are abutted against and bolted to the two connecting surfaces adjacent to the first connecting members 3a and 3b of the two rods 1a and 1b. After the connection cooperation, the local structure is referred to as Figure 5 shown.

[0044] In certain embodiments, reference Figure 4 As shown, a plurality of fan-shaped ribs 6 are welded on the inner side of the sleeve element 5. The plurality of fan-shaped ribs 6 are distributed along the axial direction of the sleeve element, and each fan-shaped rib 6 extends toward the center of the sleeve. The plurality of fan-shaped ribs 6 constrain the deformation of the first connecting member 3 and the second connecting member 4. There is a predetermined spacing between adjacent fan-shaped ribs 6, forming a space between the fan-shaped ribs 6, referring to Figure 6 As shown, the space accommodates both ends of the bolt 7, and there is a gap between the bolt 7 and the sector rib 6. In some embodiments, the spacings between adjacent sector ribs 6 are equal.

[0045] In certain embodiments, reference Figure 5 and 6 As shown, the plurality of fan-shaped ribs 6 are positioned in the space enclosed by the connecting edges of the second connecting member 4 during the connection. The shape and size of the fan-shaped ribs 6 are adapted to the fan-shaped space enclosed between the sleeve element 5 and the second connecting member 4. In some embodiments, the transverse area of ​​the fan-shaped ribs 6 is less than or equal to the transverse area of ​​the above-mentioned space, so that a gap is formed between the fan-shaped ribs 6 and the second connecting member 4, at least to facilitate assembly.

[0046] In some embodiments, the fan-shaped rib 6 is welded to the sleeve element 5. In some embodiments, the fan-shaped rib 6 is integrally formed with the sleeve element 5. This embodiment of the present application does not limit this.

[0047] In some embodiments, the length of the second connecting member 4 is less than the sum of the lengths of the two first connecting members 3, so that in the assembly connection, gaps are formed between the two ends of the second connecting member 4 and the flange plates 2 of the two rods 1 to avoid affecting the welding position between the first connecting member 3 and the flange plates 2. In some embodiments, the second end surfaces of the first connecting members 3 of the two rods 1 are in contact with each other (with a certain interval).

[0048] In certain embodiments, reference Figure 3 and Figure 5 As shown, both sides of the connecting surface 31 of the first connecting member 3 are respectively abutted against the second connecting member 4 during the connection, and the connecting surface 31 and the second connecting members 4 on both sides thereof are connected by bolts, wherein the bolts pass through the bolt holes of the connecting surface 31 and the second connecting members 4 on both sides thereof to form a bolt connection.

[0049] In some embodiments, the outer diameter of the sleeve composed of a plurality of sleeve elements 5 is equal to the outer diameter of the rod 1. It should be understood that the "equal" here is not equal in a mathematical sense, and there is a certain error in actual implementation.

[0050] In certain embodiments, reference Figure 4 As shown, the sleeve element 5 includes: a first ear plate 51, having a plurality of bolt holes 511, which is configured to be a bolt connection between the sleeve elements; and a second ear plate 52 extending radially outward, having a plurality of bolt holes 521, which is configured to be bolted to the flange plate 2. The positions of the bolt holes 521 on the second ear plate 52 are adapted to the positions of the bolt holes 21 on the flange plate 2, so that the bolts pass through the two to form a bolt connection. In some embodiments, the second ear plate 52 is a flange.

[0051] In some embodiments, the centers of the flange plate 2, the first connecting member 3 and the sleeve are the same, but not limited thereto, and those skilled in the art can make arrangements according to the force requirements.

[0052] The following is an explanation of the assembly method of the truss node. Figure 8 As shown, the truss node assembly method of the embodiment of the present application includes steps S802 to S804.

[0053] Step S802, connect the multiple connecting surfaces of the first connecting members of the two rods with the second connecting member by bolts to form a horizontal connection between the two first connecting members; wherein, one end face of each rod is welded to one side of the flange plate, the first connecting member has two end faces and multiple connecting surfaces extending radially from the center, and the first end face of the first connecting member is welded to the other side of the flange plate.

[0054] In some embodiments, the rod, the flange plate and the first connecting member are pre-welded, and the pre-welding can reduce the workload in assembly. It should be understood that the embodiments of the present application are not limited thereto.

[0055] Step S804, sleeve the sleeve element outside the first connecting member connected by the second connecting member, connect adjacent sleeve elements by bolts to form a sleeve as a whole, and connect the two ends of the sleeve element to the flange plates of the two rods by bolts.

[0056] In some embodiments, the construction method of the truss node is as follows: prefabricate the rod 1, flange plate 2, first connecting member 3, second connecting member 4, sleeve element 5, and fan-shaped rib 6 of the node in a factory, and weld the rod 1, flange plate 2, and first connecting member 3 in sequence in the factory, and weld the sleeve element 5 and fan-shaped rib 6 together. At the construction site, bolts 7 are used to connect the second connecting member and the first connecting member, at least two sleeve elements 5, and both ends of the sleeve element 5 and the flange plate 2.

[0057] In some embodiments, the fan-shaped ribs 6 are welded on the sleeve element 5 in the factory, and the size of the fan-shaped ribs 6 is determined according to the fan-shaped gap enclosed between the sleeve element 5 and the second connecting member 4. The lateral area of ​​the fan-shaped ribs 6 is less than or equal to the lateral area of ​​the above-mentioned gap. The number of fan-shaped ribs 6 is determined according to the number of bolts 7 connecting the first connecting member 3 and the second connecting member 4. Fan-shaped ribs 6 are arranged on both sides of each bolt, and there is a certain distance between the bolts 7 and the fan-shaped ribs 6 to avoid contact. The lateral spacing of the fan-shaped ribs at the same position on the sleeve element 5 is determined according to the thickness of the first connecting member 3 and the second connecting member 4 after assembly; the vertical spacing of the fan-shaped ribs 6 on the same sleeve element 5 is the same as the bolt spacing on the second connecting member 4, the fan-shaped ribs 6 between the bolts 7 are located in the middle of the two bolts 7, and the fan-shaped ribs 6 on the two sides of the same sleeve element 5 are determined according to the vertical spacing between the fan-shaped ribs 6.

[0058] The structure of the truss node can be found in the previous description of this article and will not be repeated here.

[0059] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0060] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0061] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A prefabricated truss node, characterized in that: include: A rod end connector, comprising: a flange plate having a plurality of bolt holes, one side of the flange plate being configured to be welded to an end face of the rod, wherein the plurality of bolt holes are located outside a connection position between the flange plate and the rod; a first connector having two end faces and a plurality of connection faces extending radially from a center, a first end face of the first connector being configured to be welded to the other side of the flange plate, wherein the plurality of connection faces have bolt holes; A plurality of second connecting members, each of which has a bolt hole, is configured to be connected to a connecting surface of a first connecting member of two rod members by bolts in a connection fit, thereby forming a connection between the two first connecting members, wherein the second end surfaces of the two first connecting members are butted against each other; and A sleeve, comprising at least two sleeve elements, wherein the at least two sleeve elements enable the sleeve to be axially separated or combined; wherein the at least two sleeve elements are configured to be sleeved outside the second connecting member and the first connecting member of the two rod members in a connection fit, and adjacent sleeve elements are connected by bolts to form a sleeve as a whole, and both ends of the at least two sleeve elements are connected to the flange plates of the two rod members by bolts; The second connecting member is an angle connecting member, and the angle connecting member has two connecting edges at a predetermined angle; wherein the two connecting edges are arranged to abut against two connecting surfaces adjacent to the first connecting members of the two rods in the connection cooperation and be connected by bolts; The first connecting member is a cross steel, and the second connecting member is an angle steel; A plurality of fan-shaped ribs are welded on the inner side of at least part of the sleeve element, the plurality of fan-shaped ribs are distributed axially along the sleeve element, and each fan-shaped rib extends toward the center of the sleeve; wherein the plurality of fan-shaped ribs are arranged to be positioned in the space enclosed by the second connecting member in the connection cooperation; The sleeve element comprises: a first ear plate having a plurality of bolt holes and being configured for bolt connection between the sleeve elements; and a second ear plate extending radially outwards and having a plurality of bolt holes and being configured for bolt connection with the flange plate.

2. The assembled truss node according to claim 1, characterized in that: The length of the second connecting member is smaller than the sum of the lengths of the two first connecting members, so that when the second connecting member is assembled, gaps are formed between the two ends of the second connecting member and the flange plates of the two rods.

3. The assembled truss node according to claim 1, characterized in that: Both sides of the connection surface of the first connection member are respectively in contact with the second connection members during the connection, and the connection surface is connected to the second connection members on both sides thereof by bolts.

4. The assembled truss node according to claim 1, characterized in that: The outer diameter of the sleeve is equal to the outer diameter of the rod.

5. The assembled truss node according to claim 1, characterized in that: The centers of the flange plate, the first connecting member and the sleeve are the same.

6. A method for assembling a prefabricated truss node according to any one of claims 1 to 5, characterized in that: include: Connecting the multiple connection surfaces of the first connection members of the two rods to the second connection member by bolts to form a horizontal connection between the two first connection members; wherein one end surface of each of the rods is welded to one surface of the flange plate, the first connection member has two end surfaces and the multiple connection surfaces extending radially from the center, and the first end surface of the first connection member is welded to the other surface of the flange plate; The sleeve element is sleeved outside the first connecting member connected by the second connecting member, and adjacent sleeve elements are connected by bolts to form a sleeve as a whole, and the two ends of the sleeve element are connected to the flange plates of the two rods by bolts.

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