A cross suspender structure connecting trusses and steel beams

Abstract

The present invention is a cross-shaped sling structure for connecting a truss and a steel beam, comprising a sling body and a reinforcement portion arranged on the upper portion of the sling body, wherein the lower portion of the sling body is connected and fixed to the steel beam at the lower end of the truss, and the upper portion is connected and fixed to the lower chord of the truss, the sling body comprising a variable-section main plate and two variable-section sub-plates, wherein the two variable-section sub-plates are symmetrically welded to the centers of both sides of the variable-section main plate and form a cross-shaped structure with the variable-section main plate, the variable-section sub-plates are respectively hingedly connected to the corresponding steel beams by bolts, the reinforcement portion comprises a plurality of stiffening plates and hoops, the plurality of stiffening plates are fixedly connected to the upper portions of the right-angled inner walls of the variable-section main plate and the variable-section sub-plate, and the hoops are sleeved on the upper portions of the variable-section main plate and the variable-section sub-plate and welded and fixed to the stiffening plates. The present invention has a simple structure, convenient operation, and low cost, and can effectively shorten the hoisting time of the steel beam at the lower end of the steel truss, saving construction time.

Description

Technical Field

[0001] The present invention relates to the technical field of building steel structure engineering construction, in particular to a cross suspender structure connecting a truss and a steel beam. Background Art

[0002] At present, there are more and more steel-framed factory buildings, and the functional requirements for factories are becoming more and more complex. Among them, the demand for special hoisting at the lower end of the steel truss on the roof of the steel structure factory is particularly prominent, such as hoisting of steel components, hoisting of electromechanical pipelines, hoisting of equipment, hoisting of stage lighting, etc.

[0003] A steel truss is composed of top and bottom chords, straight and diagonal webs, and other components. When hoisting beneath a truss, the load is either a line load or a point load. To meet the special hoisting requirements near key nodes, the steel truss requires special design. This is especially true when hoisting steel beams beneath the truss, as it can be difficult to ensure installation accuracy and quality. Furthermore, when hoisting a large span by welding the lower end beam on the ground, the installation becomes more difficult, with a higher safety factor and greater risk. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned problems and provide a cross-hanging column structure connecting a truss and a steel beam to achieve a strong node design, enhance the overall stability of the truss, provide guarantees for construction safety, construction quality and installation accuracy, and meet special lifting requirements under the truss.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a cross-hanging column structure connecting a truss and a steel beam, comprising a hanger column main body and a reinforcement part arranged on the upper part of the hanger column main body, the lower part of the hanger column main body is connected and fixed to the steel beam at the lower end of the truss, and the upper part is connected and fixed to the lower chord of the truss, the hanger column main body comprises a variable-section main plate and two variable-section sub-plates, and the two variable-section sub-plates are symmetrically welded at the centers of both sides of the variable-section main plate, and form a cross-shaped structure with the variable-section main plate, the variable-section sub-plates are respectively hingedly connected to the corresponding steel beams by bolts, the reinforcement part comprises a plurality of stiffening plates and hoops, the plurality of stiffening plates are fixedly connected to the upper part of the right-angle inner wall of the variable-section main plate and the variable-section sub-plate, and the hoops are sleeved on the upper part of the variable-section main plate and the variable-section sub-plate and welded and fixed to the stiffening plates.

[0006] In particular, the variable-section main board includes a first rectangular plate and a first rectangular support plate, and the two first rectangular support plates are respectively welded to the bottom of both sides of the first rectangular plate, a plurality of first bolt holes are provided on the first rectangular support plate, and a first arc chamfer is provided at the angle between the first rectangular plate and the first rectangular support plate.

[0007] In particular, the variable-section sub-plate includes a second rectangular plate and a second rectangular support plate, and a second rectangular support plate is welded to the bottom of one side of the second rectangular plate, a plurality of second bolt holes are provided on the second rectangular support plate, and a second arc chamfer is provided at the angle between the second rectangular plate and the second rectangular support plate.

[0008] In particular, the stiffening plate is a fan-shaped plate, and the outer arc is a quarter circle. There are eight stiffening plates, which are welded and fixed in pairs to the upper part of the right-angle inner wall of the first rectangular plate and the second rectangular plate.

[0009] Particularly, the hoop is semicircular, the two hoops are welded into a cylindrical shape and clamped on the upper parts of the first rectangular plate and the second rectangular plate, and the inner wall of the hoop is welded and fixed to the outer arc of the stiffening plate.

[0010] The beneficial effects of the present invention are:

[0011] 1. The present invention has a simple structure, convenient operation, and low cost. It can also effectively shorten the hoisting time of the steel beam at the lower end of the steel truss and save construction time.

[0012] 2. The present invention solves the problem that steel beams, stage lighting or other special lifting requirements cannot be installed under the steel trusses on the roof of steel structure factories, and the problem that large-span steel trusses and lower-end loads cannot be hoisted as a whole.

[0013] 3. The present invention solves the technical problems of being unable to reliably connect the steel truss with the underlying steel beam and being difficult to ensure safe and reliable lifting of the steel beam.

[0014] 4. The setting of the main body and reinforcement of the suspender column enables the lower chord of the truss and the lower end steel beam to be integrally connected through the high-strength bolts of the cross suspender column. The connection is stable and is conducive to controlling the connection quality and installation accuracy to ensure the stability between the lower chord of the truss and the bottom steel beam.

[0015] 5. The present invention realizes the strong node effect on the steel truss and improves the overall rigidity of the steel truss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the connection between the present invention and the truss and steel beam;

[0017] Figure 2 This is a schematic diagram of the variable cross-section mainboard structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the variable cross-section auxiliary plate structure of the present invention;

[0019] Figure 4 for Figure 1 Middle AA cross-sectional view;

[0020] Figure 5 for Figure 1 Schematic diagram of the BB cross section;

[0021] Figure 6 It is a schematic diagram of the hoop structure of the present invention;

[0022] Figure 7This is a schematic diagram of the stiffening plate structure of the present invention;

[0023] In the figure: 1 - variable-section main plate; 11 - first rectangular plate; 12 - first rectangular support plate; 13 - first bolt hole; 14 - first arc chamfer; 2 - variable-section auxiliary plate; 21 - second rectangular plate; 22 - second arc chamfer; 23 - second rectangular support plate; 24 - second bolt hole; 3 - hoop; 4 - stiffening plate; 5 - lower chord; 6 - steel beam;

[0024] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with embodiment:

[0026] like Figure 1-Figure 7 As shown, a cross-hanger structure is shown in which a truss and a steel beam are connected, including a hanger body and a reinforcement part arranged on the upper part of the hanger body. The lower part of the hanger body is connected and fixed to the steel beam 6 at the lower end of the truss, and the upper part is connected and fixed to the lower chord 5 of the truss, which is used to strengthen the upper connection node and improve the overall stiffness of the steel truss. The hanger body includes a variable-section main plate 1 and two variable-section sub-plates 2, and the two variable-section sub-plates 2 are symmetrically welded at the centers of both sides of the variable-section main plate 1, and form a cross-shaped structure with the variable-section main plate 1. The variable-section sub-plates 2 are respectively hingedly connected to the corresponding steel beams 6 by bolts. The reinforcement part includes a number of stiffening plates 4 and a hoop 3. The number of stiffening plates 4 are fixedly connected to the upper part of the right-angle inner wall of the variable-section main plate 1 and the variable-section sub-plate 2, and the hoop 3 is sleeved on the upper part of the variable-section main plate 1 and the variable-section sub-plate 2 and welded to the stiffening plate 4.

[0027] like Figure 2 As shown, the variable-section main board 1 includes a first rectangular plate 11 and a first rectangular support plate 12, and the two first rectangular support plates 12 are respectively welded to the bottom of both sides of the first rectangular plate 11, and a plurality of first bolt holes 13 are provided on the first rectangular support plate 12. A first arc chamfer 14 is provided at the angle between the first rectangular plate 11 and the first rectangular support plate 12; the first bolt hole 13 is a high-strength bolt hole, which is convenient for the hinged connection between the high-strength bolt and the steel beam 6. When the high-strength bolt is connected, the setting of the first arc chamfer 14 is convenient for fine-tuning to meet the connection accuracy requirements.

[0028] like Figure 3As shown, the variable-section sub-plate 2 includes a second rectangular plate 21 and a second rectangular support plate 23, and a second rectangular support plate 23 is welded to the bottom of one side of the second rectangular plate 21, and a plurality of second bolt holes 24 are provided on the second rectangular support plate 23. A second arc chamfer 22 is provided at the corner between the second rectangular plate 21 and the second rectangular support plate 23; the second bolt hole 24 is a high-strength bolt hole, which facilitates the hinged connection between the high-strength bolt and the steel beam 6. When the high-strength bolt is connected, the setting of the second arc chamfer 22 is convenient for fine-tuning to meet the connection accuracy requirements.

[0029] Specifically, if Figure 4 As shown, the second rectangular plate 21 is welded perpendicularly to the centerline of the first rectangular plate 11. The variable-section main plate 1 and the variable-section auxiliary plate 2 now form a cross-shaped sling skeleton structure. To meet the requirements for hoisting the steel beam 6 under the steel truss, bolt holes in the variable-section main plate 1 and the variable-section auxiliary plate 2 are used to hoist and secure the steel beam 6 at the lower end of the truss. The connection is hinged. To improve the hoisting and docking accuracy of the steel beam 6 at the lower end of the truss and ensure overall installation quality, circular chamfers are provided on the variable-section main plate 1 and the variable-section auxiliary plate 2.

[0030] like Figure 1 、 Figure 7 As shown, the stiffening plate 4 is a fan-shaped plate, and the outer arc is a quarter circle. There are eight stiffening plates 4, which are welded up and down in pairs and fixed to the upper part of the right-angled inner wall of the first rectangular plate 11 and the second rectangular plate 21; specifically, the stiffening plates 4 are welded at equal intervals, four on each plane, which effectively prevents the cross suspender from twisting and deformation, and the upper and lower layers of stiffening plates 4 divide the distance between the lower chord 5 and the top of the steel beam 6 into equal parts.

[0031] like Figure 5 、 Figure 6 As shown, the hoop 3 is a semicircular ring, and the two hoop 3 are welded into a cylindrical shape and clamped on the upper part of the first rectangular plate 11 and the second rectangular plate 21, and the inner wall of the hoop is welded and fixed to the outer arc of the stiffening plate 4, and the top of the hoop 3 is flush with the top of the first rectangular plate 11 and the second rectangular plate 21; specifically, the hoop 3 is formed into a cylindrical shape by welding, and the hoop 3 is integrally welded with the variable-section main plate 1, the two variable-section sub-plates 2 and the eight stiffening plates 4 to strengthen the overall stiffness of the cross suspender and prevent stress concentration damage.

[0032] Specifically, the variable-section main plate 1 and the variable-section auxiliary plate 2 are both made of steel plates, and Q355B steel plates can be used. The present invention connects the steel truss lower chord 5 and the truss lower end steel beam 6 via a cross-hanging column structure. The truss lower chord 5 and the lower end steel beam 6 are hingedly connected through bolt holes on the cross-hanging columns, providing a stable connection. The provision of a corner arc facilitates control of connection quality and installation accuracy, ensuring stability between the truss lower chord 5 and the bottom steel beam 6. Furthermore, the construction is simple, and no overall hoisting is required, thus ensuring hoisting safety.

[0033] Before implementation, after the large-span steel trusses are assembled on the ground, the top of the cross suspender can be vertically welded to the bottom chord 5 of the truss. The bottom steel beam 6 can be hoisted as a whole after being hinged through bolt holes on the ground, or it can be hoisted in sections at high altitude. Other hoisting requirements such as stage lighting can be hoisted at high altitude during the fine decoration stage, thus meeting the needs of large-span steel structure factory buildings that cannot be hoisted under the roof steel trusses, stage lighting or other special hoisting requirements.

[0034] The present invention has a simple structure, convenient operation and low cost, and can effectively shorten the hoisting time of the steel beam 6 at the lower end of the steel truss, saving construction period; it solves the technical problem of being unable to reliably connect the steel truss with the steel beam 6 below and difficult to ensure safe and reliable hoisting of the steel beam 6; the overall connection is stable and has high strength, which is conducive to controlling the connection quality and installation accuracy to ensure the stability between the lower chord 5 of the truss and the bottom steel beam 6.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. 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, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0038] The above is an exemplary description of the present invention. Obviously, the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A cross suspender structure connecting a truss and a steel beam, characterized in that: The invention comprises a sling body and a reinforcement part arranged on the upper part of the sling body, the lower part of the sling body is connected and fixed to the steel beam (6) at the lower end of the truss, and the upper part is connected and fixed to the lower chord (5) of the truss, the sling body comprises a variable-section main plate (1) and two variable-section auxiliary plates (2), and the two variable-section auxiliary plates (2) are symmetrically welded to the centers of both sides of the variable-section main plate (1) and form a cross-shaped structure with the variable-section main plate (1), the variable-section auxiliary plates (2) are respectively hingedly connected to the corresponding steel beam (6) by bolts, the reinforcement part comprises a plurality of stiffening plates (4) and a hoop (3), the plurality of stiffening plates (4) are fixedly connected to the upper part of the right-angle inner wall of the variable-section main plate (1) and the variable-section auxiliary plate (2), and the hoop (3) is sleeved on the upper part of the variable-section main plate (1) and the variable-section auxiliary plate (2) and welded and fixed to the stiffening plates (4); The variable-section main plate (1) comprises a first rectangular plate (11) and a first rectangular support plate (12), and the two first rectangular support plates (12) are respectively welded to the bottoms of both sides of the first rectangular plate (11), the first rectangular support plate (12) is provided with a plurality of first bolt holes (13), and a first arc chamfer (14) is provided at the angle between the first rectangular plate (11) and the first rectangular support plate (12); the variable-section auxiliary plate (2) comprises a second rectangular plate (21) and a second rectangular support plate (23), and a second rectangular support plate (23) is welded to the bottom of one side of the second rectangular plate (21). , a plurality of second bolt holes (24) are provided on the second rectangular support plate (23), and a second arc chamfer (22) is provided at the angle between the second rectangular plate (21) and the second rectangular support plate (23); the stiffening plate (4) is a fan-shaped plate, and the outer arc is a quarter circle. There are eight stiffening plates (4), which are welded and fixed to the upper part of the right-angled inner wall of the first rectangular plate (11) and the second rectangular plate (21) in pairs. The stiffening plates (4) are welded at equal intervals, four on each plane, and the upper and lower layers of stiffening plates (4) divide the distance between the lower chord (5) and the top of the steel beam (6) into equal parts.

2. A cross suspender structure connecting a truss and a steel beam according to claim 1, characterized in that: The hoop (3) is semicircular, and the two hoop (3) are welded into a cylindrical shape and clamped on the upper parts of the first rectangular plate (11) and the second rectangular plate (21), and the inner wall of the hoop is welded and fixed to the outer arc of the stiffening plate (4).

3. A cross suspender structure connecting a truss and a steel beam according to claim 2, characterized in that: The top of the hoop (3) is flush with the tops of the first rectangular plate (11) and the second rectangular plate (21).

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