A keel connection structure suitable for a curved pipe truss

Abstract

The utility model discloses a keel connecting structure suitable for curved surface pipe truss, including pipe truss and main keel, the pipe truss is equipped with two layers of upper and lower, and the pipe truss of upper layer is connected with the pipe truss of lower layer through a plurality of steel pipes, and is based on the stress connection point of steel pipe formation on the pipe truss of lower layer, the main keel is located the positive below of stress connection point, the pipe truss of lower layer is equipped with two first hoop near stress connection point, and two first hoop are connected through flat steel cross arm, and the flat steel cross arm is connected with the suspender, and the suspender is located the positive below of stress connection point, and one end of suspender is connected with the flat steel cross arm, and the other end is connected with the main keel through second hoop. The utility model discloses a flat steel cross arm can adjust the position of suspender, and let the other end of suspender be located the positive above of main keel, and let suspender and main keel can be perpendicular normal connection, avoid the inclination of suspender.

Description

Technical Field

[0001] This utility model relates to the field of building equipment technology, and in particular to a keel connection structure suitable for curved tubular trusses. Background Technology

[0002] A tubular truss is a lattice structure composed of round tubular members connected at the ends by welding or bolting. It is a type of spatial grid structure, primarily used in large-span public buildings such as stadiums, convention centers, high-speed rail platforms, and industrial plants. In construction, tubular trusses typically have two layers. A joist connects to the lower layer of the truss, and the joist is directly connected to the lower truss via hangers and clamps. The clamps wrap around the tubular truss, and the hangers are vertically suspended from the clamps, with the other end of the hangers bolted to the joist. In actual installation, the keel and the pipe truss are mostly in a non-plane perpendicular relationship. Due to the high strength at the stress connection point of the upper and lower pipe trusses, and because the stress connection point is the perpendicular intersection of the non-plane perpendicular keel and the pipe truss, the keel is located directly below the stress connection point. Furthermore, due to the large number of steel pipes at the stress connection point, the clamp cannot be directly wrapped around the stress connection point and needs to be placed close to the stress connection point. When the hanger is suspended, there will be a certain distance difference between the other end of the hanger and the keel. If the hanger is forcibly connected to the keel with bolts at this time, it will cause the hanger to tilt beyond the limit, which will cause uneven stress at the node. Utility Model Content

[0003] To solve the above problems, the technical solution adopted by this utility model is as follows: A keel connection structure suitable for curved tubular trusses includes a tubular truss and a main keel. The tubular truss has upper and lower layers, and the upper and lower tubular trusses are connected by several steel pipes, forming a stress connection point on the lower tubular truss based on the steel pipes. The main keel is located directly below the stress connection point. The lower tubular truss has two first clamps near the stress connection point, and the two first clamps are connected by a flat steel crossbeam. The flat steel crossbeam is connected to a hanger rod, which is located directly below the stress connection point. One end of the hanger rod is connected to the flat steel crossbeam, and the other end is connected to the main keel through a second clamp.

[0004] Furthermore, the upper truss is equipped with a third clamp, which is connected to a hanger rod. One end of the hanger rod is connected to the third clamp, and the other end is connected to the main keel through a fourth clamp.

[0005] Furthermore, the first clamp, the second clamp, the third clamp, and the fourth clamp are all split-type structures.

[0006] Furthermore, there are multiple stress connection points, and each stress connection point is provided with a main keel directly below it. Several main keels are connected by angle steel cross braces.

[0007] Furthermore, the cross section of the angle steel cross brace is L-shaped, and the angle steel cross brace is integrally formed.

[0008] The beneficial effects of this utility model are: The position of the hanger can be adjusted by using the flat steel crossbeam, so that the other end of the hanger is directly above the main keel, allowing the hanger to be connected vertically and normally to the main keel, and preventing the hanger from tilting.

[0009] The second clamp is wrapped around the outer wall of the main keel, which increases the contact area between surfaces and prevents the main keel from deforming due to stress concentration, thus extending its service life. In addition, the second clamp makes it easier to disassemble the main keel for maintenance and adjustment. Attached Figure Description

[0010] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of the invention.

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the left view of the present invention; Figure 3 for Figure 2 Enlarged view of part A; Figure 4 This is a schematic diagram of the structure connecting the first clamp, the flat steel crossarm, and the tubular truss.

[0013] In the picture 1. Pipe truss; 2. Main keel; 3. Steel pipe; 4. Load-bearing connection point; 5. First clamp; 6. Flat steel crossbeam; 7. Hanger; 8. Second clamp; 9. Third clamp; 10. Fourth clamp; 11. Angle steel cross brace. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0015] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0016] refer to Figures 1-4 As shown, one embodiment of this utility model is as follows: A keel connection structure suitable for curved tubular trusses includes a tubular truss 1 and a main keel 2. The tubular truss 1 has upper and lower layers. The upper tubular truss 1 and the lower tubular truss 2 are connected by several steel pipes 3, and a stress connection point 4 is formed on the lower tubular truss 1 based on the steel pipes 3. The main keel 2 is located directly below the stress connection point 4. The lower tubular truss 1 is provided with two first clamps 5 near the stress connection point 4. The two first clamps 5 are connected to each other by a flat steel crossbeam 6. The flat steel crossbeam 6 is connected to a hanger 7. The hanger 7 is located directly below the stress connection point 4. One end of the hanger 7 is connected to the flat steel crossbeam 6, and the other end is connected to the main keel 2 through a second clamp 8.

[0017] In this invention, before connecting one end of the hanger 7 to the flat steel crossbeam 6, a connection hole can be made at a suitable position on the flat steel crossbeam 6 according to the actual situation, and the hanger 7 can be installed onto the flat steel crossbeam 6 by bolt connection. The position of the hanger 7 can be adjusted by the flat steel crossbeam 6, so that the other end of the hanger 7 is directly above the main keel 2, so that the hanger 7 and the main keel 2 can be connected vertically and normally, and the hanger 7 is prevented from tilting.

[0018] In this invention, the second clamp 8 encircles the outer wall of the main keel 2, forming a surface-to-surface contact. Compared to traditional bolt connections, this invention provides a larger stress-bearing surface, preventing deformation of the main keel 2 due to stress concentration and extending its service life. Furthermore, compared to traditional welding methods, the encircling method using the second clamp 8 facilitates the disassembly of the main keel 2 for maintenance and adjustment.

[0019] In this invention, the upper and lower tubular trusses 1 can be connected by welding steel pipes 3.

[0020] Specifically, the upper-level tubular truss 1 is equipped with a third clamp 9, which is connected to a hanger 7. One end of the hanger 7 is connected to the third clamp 9, and the other end is connected to the main keel 2 via a fourth clamp 10. Connecting the main keel 2 to the upper-level tubular truss 1 via the hanger 7 provides a stress support point for the main keel 2, further enhancing the stability of the main keel 2 suspended on the tubular truss 1.

[0021] Specifically, the first clamp 5, the second clamp 8, the third clamp 9, and the fourth clamp 10 are all modular structures. These modular clamps can be prefabricated in the factory according to a pre-set arc or shape, eliminating the need for on-site cutting or heat treatment. This results in faster and more efficient installation compared to traditional integral clamps. Furthermore, the modular structure facilitates later maintenance; if the clamp position needs to be adjusted, only the bolts need to be loosened and reinstalled, without compromising the structural integrity.

[0022] Specifically, there are multiple stress connection points 4, and each stress connection point 4 has a main keel 2 directly below it. The main keels 2 are connected by angle steel cross braces 11. The angle steel cross braces 11 can be fixedly installed on the multiple main keels 2 by welding or bolting, so that the multiple main keels 2 form a rectangular whole, improving the overall stability of the main keels 2.

[0023] Specifically, the angle steel cross brace 11 has an L-shaped cross section, which can provide double-sided support, evenly distribute vertical pressure and horizontal shear force, and effectively resist bending and torsion. The angle steel cross brace 11 is integrally formed, resulting in high strength.

[0024] The following points need to be explained: (1) Unless otherwise defined, the same reference numerals in the embodiments and drawings of this disclosure have the same meaning.

[0025] (2) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0026] (3) For clarity, components or areas are enlarged in the drawings used to describe embodiments of the present disclosure. It will be understood that when an element is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element, or there may be an intermediate element.

[0027] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A keel connection structure suitable for a curved pipe truss, characterized by: The system includes a tubular truss (1) and a main keel (2). The tubular truss (1) has two layers, with the upper tubular truss (1) and the lower tubular truss (1) connected by several steel pipes (3). Based on the steel pipes (3), a stress connection point (4) is formed on the lower tubular truss (1). The main keel (2) is located directly below the stress connection point (4). The lower tubular truss (1) is provided with two first clamps (5) near the stress connection point (4). The two first clamps (5) are connected by a flat steel crossbeam (6). The flat steel crossbeam (6) is connected to a hanger (7). The hanger (7) is located directly below the stress connection point (4). One end of the hanger (7) is connected to the flat steel crossbeam (6), and the other end is connected to the main keel (2) through a second clamp (8).

2. A keel connection structure for a curved tube truss according to claim 1, characterized in that: The upper truss (1) is provided with a third clamp (9), and the third clamp (9) is connected to a hanger (7). One end of the hanger (7) is connected to the third clamp (9), and the other end is connected to the main keel (2) through a fourth clamp (10).

3. A keel connection structure for a curved tube truss according to claim 2, characterized in that: The first clamp (5), the second clamp (8), the third clamp (9) and the fourth clamp (10) are all split structures.

4. A keel connection structure for a curved tube truss according to claim 3, characterized in that: The force-bearing connection point (4) is provided in multiple ways, and the main keel (2) is provided directly below each force-bearing connection point (4). Several of the main keels (2) are connected by angle steel cross braces (11).

5. A keel connection structure for a curved tube truss according to claim 4, characterized in that: The cross section of the angle steel cross brace (11) is L-shaped, and the angle steel cross brace (11) is integrally formed.

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