Key node structure of extra-large-span vertical turning steel truss

Abstract

The utility model relates to the technical field of truss key node structures, in particular to an extra-large-span vertical turning steel truss key node structure which is applied to a latticed column and further comprises chord members horizontally installed on the side of the latticed column and used for bearing longitudinal loads. Web members used for improving the bearing capacity of the key joint of the turning steel truss are obliquely arranged outside the latticed columns, and the bottoms of the web members are obliquely arranged on the chord members. The web members are obliquely mounted on the sides of the latticed columns and the chord members, so that the web members can obliquely intersect with the vertical direction of the latticed columns and the horizontal direction of the chord members, stress can be dispersed to the latticed columns and the chord members at the same time when the web members bear loads, and the stress can be dispersed to the latticed columns and the chord members at the same time; the problem that the bearing strength of a key joint structure of an extra-large-span vertical turning steel truss is insufficient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of truss key node structures, in particular to a key node structure of a super-large span vertical turning steel truss. Background Art

[0002] Truss key node structures are the core components of a truss. They are typically constructed by welding or fastening multiple members (such as box-type members or I-beams) together, with the ends of these members butted together at the same point, forming a radial pattern and spaced at equal angles. Truss key node structures offer high strength, high rigidity, and a variety of shapes. They can withstand gravity loads from truss beams and columns and transmit these loads to other components through the nodes. Furthermore, truss key node structures are easy to construct and maintain, offer high space utilization, and possess reliability and durability, adapting to diverse environments and operating conditions.

[0003] Chinese patent publication number CN111424819B discloses an assembled steel tube truss reinforced node connection structure and its installation method, comprising a steel tube column, a square tube installation kit, an installation angle steel, a T-shaped steel, and a compression angle steel. The steel tube column is fixed with a connection wing at the node installation position. The square tube installation kit is fixed to the steel tube column node installation position and the outside of the connection wing. One side of the square tube installation kit is fixedly connected to the installation angle steel. The installation angle steel is movably connected to the T-shaped steel. The T-shaped steel is movably connected to the compression angle steel. The connection angle steel is clamped between the T-shaped steel and the compression angle steel. This assembled steel tube truss reinforced node connection structure and its installation method have the advantages of reducing damage to the main steel material and being relatively simple to install. It solves the problem that the low proficiency of welding workers can affect the structural strength of steel structure connection nodes.

[0004] The reinforcement node in the above patent document is achieved by setting a connecting angle steel on one side of the vertical plate, then setting a clamping angle steel on the connecting angle steel, and then fixing the connecting angle steel and the clamping angle steel to the vertical plate by bolts, so that the installation method is relatively simple. However, the existing reinforcement node only uses horizontally placed connecting angle steels, resulting in insufficient bearing strength of the connecting angle steels. When the connecting angle steels are subjected to stress, it is easy to cause the connecting angle steels to bend near the connection. Therefore, a key node structure of a super-large span vertical turning steel truss is proposed. Summary of the Invention

[0005] In order to solve the problems of the prior art, the present invention provides a key node structure of a super-large span vertical turning steel truss. The present invention installs the web members obliquely on the side of the lattice column and the chord, so that the web members can be obliquely intersected with the vertical direction of the lattice column and the horizontal direction of the chord respectively, so that when the web members bear the load, the stress can be dispersed to the lattice column and the chord at the same time, thereby solving the problem of insufficient bearing strength of the key node structure of the super-large span vertical turning steel truss.

[0006] In order to solve the problems of the existing technology, the present application provides a key node structure of a super-large span vertical turning steel truss, which is applied to a lattice column. The key node structure of the super-large span vertical turning steel truss also includes a chord rod horizontally installed on the side of the lattice column for bearing longitudinal loads. The outside of the lattice column is inclinedly provided with a web rod for improving the bearing capacity of the key node of the turning steel truss, and the bottom of the web rod is inclinedly provided on the chord rod.

[0007] As a technical solution of the present application, two parallel support plates are fixed to the outside of the lattice column, and one end of the chord is fixed between the two support plates.

[0008] As a technical solution of the present application, a plurality of first mounting holes are provided through the two support plates, a mounting seat that can be installed between the two support plates is provided at one end of the chord rod, and third mounting holes that can be adapted to the first mounting holes are provided on both sides of the mounting seat, and a flange plate that can abut against the end surface of the support plate is provided at the bottom of the web rod, and a fifth mounting hole that can be adapted to the first mounting hole is provided through the flange plate, and a first fastener for fixing the mounting seat and the web rod to the support plate is installed inside the first mounting hole, the third mounting hole and the fifth mounting hole.

[0009] As a technical solution of the present application, the chord is provided with a plurality of second mounting holes near the mounting seat, the bottom of the web is provided with a limit plate that can be clamped on the chord near the flange plate, the limit plate is provided with a plurality of fourth mounting holes that can be adapted to the second mounting holes, and the second fasteners for fixing the limit plate to the outside of the chord are installed inside the second mounting holes and the fourth mounting holes.

[0010] As a technical solution of the present application, a plurality of reinforcing ribs for increasing the connection strength are longitudinally arranged on the side surfaces of the web.

[0011] As a technical solution of the present application, a plurality of ribs are horizontally arranged inside the lattice column.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present application achieves this by obliquely installing the web members on the sides of the lattice columns and the chord members, so that the web members can be obliquely intersected with the vertical direction of the lattice columns and the horizontal direction of the chord members respectively. This enables the web members to simultaneously disperse the stress to the lattice columns and the chord members when bearing loads, thereby solving the problem of insufficient structural bearing strength of key nodes of extra-large span vertical turning steel trusses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural diagram of the key node structure of a super-large span vertical turning steel truss. Figure 1 .

[0015] Figure 2 This is a three-dimensional structural diagram of the key node structure of a super-large span vertical turning steel truss. Figure 2 .

[0016] Figure 3 It is a top view of the key node structure of an extra-large span vertical turning steel truss.

[0017] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0018] Figure 5 It is a three-dimensional diagram of a lattice column in a key node structure of an extra-large span vertical turning steel truss.

[0019] Figure 6 It is a three-dimensional diagram of the chord in the key node structure of an extra-large span vertical turning steel truss.

[0020] Figure 7 It is a three-dimensional diagram of the web member in the key node structure of an extra-large span vertical turning steel truss.

[0021] The numbers in the figure are: 1, lattice column; 11, support plate; 12, first mounting hole; 13, rib; 2, chord; 21, second mounting hole; 22, mounting seat; 23, third mounting hole; 3, web member; 31, limit plate; 32, fourth mounting hole; 33, flange plate; 34, fifth mounting hole; 35, reinforcement rib; 4, first fastener; 5, second fastener. DETAILED DESCRIPTION

[0022] In order to further understand the features, technical means and specific purposes and functions of the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] See also Figure 1-Figure 7 As shown, a key node structure of a super-large span vertical turning steel truss is applied to a lattice column 1. The key node structure of the super-large span vertical turning steel truss also includes a chord 2 horizontally installed beside the lattice column 1 for bearing longitudinal loads. The outside of the lattice column 1 is obliquely provided with a web 3 for improving the bearing capacity of the key node of the turning steel truss, and the bottom of the web 3 is obliquely provided on the chord 2.

[0024] By obliquely installing the web members 3 on the side of the lattice column 1 and on the chord 2, the web members 3 can be obliquely intersected with the vertical direction of the lattice column 1 and the horizontal direction of the chord 2. When the web members 3 are under load, the stress acting on the web members 3 is obliquely transferred to the connection end of the chord 2 and the lattice column 1, so that the lattice column 1 and the chord 2 can simultaneously share the inclined stress, thereby improving the bearing strength of the key node structure of the extra-long span vertical turning steel truss.

[0025] See also Figure 1 and Figure 4 As shown, two parallel support plates 11 are fixed to the outside of the lattice column 1 , and one end of the chord 2 can be fixed between the two support plates 11 .

[0026] By arranging two circular support plates 11 on the outside of the lattice column 1, inserting one end of the chord 2 between the two support plates 11, and then fixing it with a fixing piece, the chord 2 is prevented from falling off the lattice column 1 when the chord 2 is subjected to loads from above or below.

[0027] See also Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, a plurality of first mounting holes 12 are provided through the two support plates 11, a mounting seat 22 which can be installed between the two support plates 11 is provided at one end of the chord 2, and third mounting holes 23 which can be adapted to the first mounting holes 12 are provided on both sides of the mounting seat 22, and a flange plate 33 which can abut against the upper end surface of the support plate 11 is provided at the bottom of the web 3, and a fifth mounting hole 34 which can be adapted to the first mounting hole 12 is provided through the flange plate 33, and a first fastener 4 for fixing the mounting seat 22 and the web 3 to the support plate 11 is installed inside the first mounting hole 12, the third mounting hole 23 and the fifth mounting hole 34.

[0028] When the chord 2 and the web 3 are installed on the support plate 11, a plurality of fifth mounting holes 34 are set through the flange plate 33, and the fifth mounting holes 34 can be adapted to the first mounting holes 12. Then, a mounting seat 22 is set at one end of the mounting seat 22, and the third mounting hole 23 set on the mounting seat 22 can be adapted to the first mounting hole 12. Then, the first fastener 4 is sequentially passed through the third mounting hole 23, the hole on the flange plate 33 and the first mounting hole 12 on the support plate 11, and fixed, so that the first fastener 4 fixes the chord 2, the web 3 and the support plate 11.

[0029] See also Figure 1 、 Figure 2 Figure 6 and Figure 7 As shown, a plurality of second mounting holes 21 are provided through the chord 2 near the mounting seat 22, a limiting plate 31 that can be clamped on the chord 2 is provided at the bottom of the web 3 near the flange plate 33, and a plurality of fourth mounting holes 32 that can be adapted to the second mounting holes 21 are provided through the limiting plate 31, and second fasteners 5 for fixing the limiting plate 31 to the outside of the chord 2 are installed inside the second mounting holes 21 and the fourth mounting holes 32.

[0030] By setting a limiting plate 31 at the bottom of the web 3, setting a fourth mounting hole 32 on the limiting plate 31 that can adapt to the second mounting hole 21, and then installing the second fastener 5 inside the second mounting hole 21 and the fourth mounting hole 32, the second fastener 5 fixes the web 3 on the chord 2.

[0031] See also Figure 1 and Figure 2 As shown, a plurality of reinforcing ribs 35 are longitudinally provided on the side of the web member 3 for increasing the connection strength.

[0032] When the web member 3 is subjected to stress, the reinforcement ribs 35 provided on the side of the web member 3 can transfer the stress to the chord member 2. At the same time, the reinforcement ribs 35 can increase the strength of the installation part of the web member 3 to prevent the end of the web member 3 from breaking during use.

[0033] See also Figure 4 As shown, a plurality of ribs 13 are horizontally arranged inside the lattice column 1 .

[0034] By longitudinally arranging a plurality of horizontal ribs 13 inside the lattice column 1 , the shear resistance of the lattice column 1 is improved and the axial bearing capacity of the lattice column 1 is enhanced.

[0035] When the present invention is working, a mounting seat 22 is provided at one end of the chord 2, and the mounting seat 22 is then inserted between the two sets of support plates 11, and then the end of the web member 3 is abutted against the upper end surface of the support plate 11, and then the fastener is vertically installed inside the first mounting hole 12, the third mounting hole 23 and the flange plate 33, so that the fastener fixes the chord 2 and the web member 3 on the support plate 11, and by providing a reinforcing rib 35 on the side of the end of the web member 3, the reinforcing rib 35 can vertically transfer the stress to the chord 2, and at the same time, the reinforcing rib 35 can increase the strength of the installation of the web member 3 to avoid the end of the web member 3 from breaking during use, and by providing a number of horizontal ribs 13 inside the lattice column 1, the shear resistance of the lattice column 1 is improved and the axial bearing capacity of the lattice column 1 is enhanced, thereby completing the use of a key node structure of an extra-large span vertical turning steel truss.

[0036] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A key node structure of a super-large span vertical turning steel truss, applied to a hollow lattice column (1), characterized in that: The key node structure of the extra-large span vertical turning steel truss further comprises a chord (2) horizontally mounted beside a lattice column (1) for bearing a longitudinal load, a web (3) for improving the bearing capacity of the key node of the turning steel truss being arranged obliquely on the outside of the lattice column (1), and the bottom of the web (3) is obliquely arranged on the chord (2).

2. The key node structure of a super-long span vertical turning steel truss according to claim 1 is characterized in that: Two parallel support plates (11) are fixed to the outside of the lattice column (1), and one end of the chord (2) is fixed between the two support plates (11).

3. The key node structure of a super-long span vertical turning steel truss according to claim 2 is characterized in that: A plurality of first mounting holes (12) are provided through the two support plates (11); a mounting seat (22) capable of being mounted between the two support plates (11) is provided at one end of the chord rod (2); third mounting holes (23) capable of matching with the first mounting holes (12) are provided on both sides of the mounting seat (22); a flange plate (33) capable of abutting against the upper end surface of the support plate (11) is provided at the bottom of the web rod (3); a fifth mounting hole (34) capable of matching with the first mounting hole (12) is provided through the flange plate (33); and a first fastener (4) for fixing the mounting seat (22) and the web rod (3) to the support plate (11) is installed inside the first mounting hole (12), the third mounting hole (23) and the fifth mounting hole (34).

4. The key node structure of a super-long span vertical turning steel truss according to claim 1 is characterized in that: A plurality of second mounting holes (21) are provided through the chord (2) at a position close to the mounting seat (22); a limiting plate (31) capable of being clamped onto the chord (2) is provided at a position close to the flange plate (33) at the bottom of the web (3); a plurality of fourth mounting holes (32) capable of being adapted to the second mounting holes (21) are provided through the limiting plate (31); and second fasteners (5) for fixing the limiting plate (31) to the outside of the chord (2) are installed inside the second mounting holes (21) and the fourth mounting holes (32).

5. The key node structure of a super-long span vertical turning steel truss according to claim 1 is characterized in that: A plurality of reinforcing ribs (35) for increasing the connection strength are longitudinally arranged on the side surfaces of the web member (3).

6. The key node structure of a super-long span vertical turning steel truss according to claim 1 is characterized in that: A plurality of ribs (13) are horizontally arranged inside the lattice column (1).

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