Section steel joist with high tightness

Abstract

The invention discloses a high-tightness profile steel joist which comprises two joists and a steel pipe, the joists are symmetrically distributed, side holes are formed in the joists, positioning holes are formed in the steel pipe, first bolts are connected into the first bolts and the positioning holes, the two symmetrical sides of the steel pipe are sleeved with hoop rings, and the hoop rings are connected with the two sides of the steel pipe in a sleeved mode. The ends of the two shroud rings are connected through second bolts, supporting rib plates are welded to the bottom ends of the shroud rings, horizontal rib lugs are welded to the ends, away from the shroud rings, of the supporting rib plates, and the rib lugs are connected with the joists through third bolts. According to the profile steel joist with the high tightness, the shroud ring is arranged on the periphery of the steel pipe, the supporting rib plate is connected to the bottom end of the shroud ring, and the bottom end of the supporting rib plate is connected to the joist through the rib lugs welded to the end of the supporting rib plate, so that the joist, the steel pipe and the supporting rib plate form a triangular supporting structure; therefore, the stability between the joist and the steel pipe is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel beams, in particular to a steel support beam with high fastening degree. Background Art

[0002] Tubular steel structures such as steel pipes require steel joists for support and connection when erecting elevated structures. Most existing steel joists support steel pipes by opening through holes in the steel pipes, and then use bolts to fix the steel pipes on the joists. This single support makes the support of the steel pipe by the joists unstable, and the steel pipe is in danger of tilting and collapsing.

[0003] Based on this, the present application proposes a steel beam with high fastness. Summary of the invention

[0004] The present application proposes a steel joist with high fastening degree, which has the advantage of improving the stability between the tubular steel and the joist, and is used to solve the problem of instability of a single connection using bolts.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a steel support beam with high fastening degree, comprising: a support beam and a steel pipe, wherein there are two support beams and they are symmetrically distributed, a side hole is opened on the support beam, a positioning hole is opened on the steel pipe, a first bolt is connected with a first bolt in the positioning hole, symmetrical sides of the steel pipe are sleeved with hoops, the ends of the two hoops are connected by a second bolt, a supporting rib is welded at the bottom end of the hoop, a horizontal rib ear is welded at the end of the support rib away from the hoop, and the rib ear is connected to the support beam by a third bolt.

[0006] Furthermore, the supporting rib is arc-shaped, the bottom end width of the supporting rib is greater than the outer diameter of the steel pipe, and the supporting beam, steel pipe and supporting rib form a triangle.

[0007] Furthermore, the outer periphery of the ends of the two hoops are sleeved with pad ears, and the pad ears include a horizontal plate, an inclined plate and a vertical plate. The two ends of the horizontal plate are respectively connected to an inclined plate, and the top of each inclined plate is connected to a vertical plate. The two vertical plates are respectively located on the inner side of the nut and the nut of the second bolt.

[0008] Furthermore, a clamping plate is welded on the outer periphery of the steel pipe, the clamping plate is placed on the top end of the supporting beam, and the outer diameter of the clamping plate is greater than the outer diameter of the steel pipe.

[0009] Furthermore, the hoop, supporting ribs, rib ears, third bolts, second bolts, and pad ears are symmetrically arranged on the upper and lower sides of the support beam, and a symmetrical bracing plate is connected between the two symmetrical pad ears, and the two ends of the symmetrical bracing plate are welded to the bottom surface of the cross plate.

[0010] Furthermore, a limiting hole is opened on the horizontal plate, and a symmetrical pull rod is connected between two upper and lower symmetrical pad ears, and both ends of the symmetrical pull rod are inserted into the limiting hole. Both ends of the symmetrical pull rod are provided with threaded grooves, and the end of the symmetrical pull rod is threadedly connected with a fourth bolt, and the fourth bolt is located in the pad ear.

[0011] The present invention has the following beneficial effects: 1. The present application provides a high-tightness steel support beam, which is provided with a hoop ring on the outer periphery of a steel pipe, and a supporting rib is connected to the bottom end of the hoop ring, and the bottom end of the supporting rib is connected to the support beam by using rib ears welded to the end of the supporting rib, so that the support beam, steel pipe and supporting rib form a triangular support structure, thereby improving the stability between the support beam and the steel pipe.

[0012] 2. The present application provides a steel support beam with high fastness. By arranging hoops, supporting ribs and rib ears at the upper and lower ends, a vertically symmetrical connection structure is formed at the upper and lower ends of the steel pipe, thereby improving the stability between the steel pipe and the support beam. In addition, the pad ear is connected to the hoop by a second bolt at the end of the hoop, and a symmetrical tie plate or a symmetrical tie rod is used to connect the upper and lower symmetrical pad ears, thereby preventing the steel pipe from moving in the upper and lower directions, thereby further improving the stability between the steel pipe and the support beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0014] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 This is a structural diagram of Embodiment 1 of the present application; Figure 2 A side view of an embodiment of the present application; Figure 3 This is a top view of the first embodiment of the present application; Figure 4 for Figure 3 AA section view; Figure 5 This is a structural diagram of Embodiment 2 of the present application; Figure 6 This is a side view of the second embodiment of the present application; Figure 7 This is a structural diagram of Embodiment 3 of the present application; Figure 8 This is a side view of the third embodiment of the present application; Fig. 9 This is a partial cross-sectional view of the third embodiment of the present application.

[0015] In the figure: 1, support beam; 101, side hole; 102, first bolt; 2, steel pipe; 201, positioning hole; 3, hoop; 4, supporting rib plate; 5, rib ear; 6, third bolt; 7, second bolt; 8, pad ear; 801, horizontal plate; 802, inclined plate; 803, vertical plate; 880, limiting hole; 9, symmetrical tie plate; 10, symmetrical tie rod; 11, threaded groove; 12, fourth bolt; 13, clamping plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0017] Embodiment 1 See attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 As shown, a steel joist with high fastness comprises: a joist 1 and a steel pipe 2, the number of joists 1 is two and they are symmetrically distributed, a side hole 101 is opened on the joist 1, a positioning hole 201 is opened on the steel pipe 2, a first bolt 102 is connected to the positioning hole 201, a hoop 3 is sleeved on the symmetrical sides of the steel pipe 2, the middle part of the hoop 3 is arc-shaped, and the two ends are straight plates, bolt holes are opened on the straight plates, the ends of the two hoop 3 are connected by a second bolt 7, a supporting rib 4 is welded to the bottom end of the hoop 3, a horizontal rib ear 5 is welded to the end of the supporting rib 4 away from the hoop 3, and the rib ear 5 is connected to the joist 1 by a third bolt 6. The supporting rib 4 is arc-shaped, and the bottom width of the supporting rib 4 is greater than the outer diameter of the steel pipe 2, and the joist 1, the steel pipe 2, and the supporting rib 4 form a triangle, thereby improving the stability between the steel pipe 2 and the joist 1, and improving the supporting effect of the joist 1 on the steel pipe 2.

[0018] Embodiment 2 See attached Figure 5 , Attachment Figure 6 As shown, the outer periphery of the end of the two hoops 3 is sleeved with a pad ear 8, and the pad ear 8 includes a horizontal plate 801, an inclined plate 802 and a vertical plate 803. The two ends of the horizontal plate 801 are respectively connected to an inclined plate 802, and the top of each inclined plate 802 is connected to a vertical plate 803. The two vertical plates 803 are respectively located on the inner side of the nut and the nut of the second bolt 7. The vertical plate 803 serves to increase the friction between the second bolt 7 and the hoop 3, which is similar to the existing gasket. In addition, when the outer diameter of the steel pipe 2 increases or decreases, the distance between the two vertical plates 803 is adjusted by slightly stretching or squeezing the vertical plate 803 outward to match the distance between the two hoops 3.

[0019] A clamping plate 13 is welded to the outer periphery of the steel pipe 2, and the clamping plate 13 is placed on the top of the joist 1. The outer diameter of the clamping plate 13 is larger than the outer diameter of the steel pipe 2. The clamping plate 13 is clamped on the top surface of the joist 1, further improving the supporting effect of the joist 1 on the steel pipe 2.

[0020] The hoop 3, the supporting rib 4, the rib ear 5, the third bolt 6, the second bolt 7, and the pad ear 8 are symmetrically arranged on the upper and lower sides of the joist 1, and a symmetrical brace plate 9 is connected between the two symmetrical pad ears 8, and the two ends of the symmetrical brace plate 9 are welded to the bottom surface of the cross plate 801. The symmetrical brace plates 9 connect the pad ears 8 on the upper and lower sides of the joist 1, which plays a role in limiting the upward and downward movement of the steel pipe 2, and further improves the stability between the steel pipe 2 and the joist 1.

[0021] Embodiment 3 See attached Figure 7 , Attachment Figure 8 , Attachment Fig. 9 As shown, a limit hole 880 is provided on the horizontal plate 801, and a symmetrical pull rod 10 is connected between the two upper and lower symmetrical pad ears 8, and both ends of the symmetrical pull rod 10 are inserted into the limit hole 880. Both ends of the symmetrical pull rod 10 are provided with a thread groove 11, and the end of the symmetrical pull rod 10 is threadedly connected with a fourth bolt 12, and the fourth bolt 12 is located in the pad ear 8. The symmetrical pull rod 10 is different from the connection method of welding the symmetrical bracing plate 9 and the pad ear 8. The symmetrical pull rod 10 can not only achieve the function of connecting the upper and lower pad ears 8, but also can adaptively adjust the length in the pad ear 8 to match the distance between the two pad ears 8, which is convenient for adjustment.

Claims

1. A steel joist with high fastness, characterized in that: include: A support beam (1) and a steel pipe (2), wherein the number of the support beams (1) is two and they are symmetrically distributed, the support beam (1) is provided with a side hole (101), the steel pipe (2) is provided with a positioning hole (201), the first bolt (102) and the positioning hole (201) are connected with a first bolt (102), symmetrical two sides of the steel pipe (2) are sleeved with a hoop (3), the ends of the two hoop rings (3) are connected by a second bolt (7), the bottom end of the hoop ring (3) is welded with a supporting rib plate (4), the end of the supporting rib plate (4) away from the hoop ring (3) is welded with a horizontal rib ear (5), and the rib ear (5) is connected to the support beam (1) by a third bolt (6).

2. The steel joist with high tightness according to claim 1, characterized in that: The supporting rib (4) is arc-shaped, the bottom end width of the supporting rib (4) is greater than the outer diameter of the steel pipe (2), and the supporting beam (1), the steel pipe (2) and the supporting rib (4) form a triangle.

3. The steel joist with high tightness according to claim 2, characterized in that: The outer peripheries of the ends of the two hoops (3) are sleeved with pad ears (8), the pad ears (8) comprising a horizontal plate (801), an inclined plate (802) and a vertical plate (803), the two ends of the horizontal plate (801) are respectively connected to an inclined plate (802), the top end of each inclined plate (802) is connected to a vertical plate (803), and the two vertical plates (803) are respectively located on the inner sides of the nut cap and the nut of the second bolt (7).

4. The steel joist with high tightness according to claim 3, characterized in that: A clamping plate (13) is welded to the outer periphery of the steel pipe (2), the clamping plate (13) is placed on the top end of the supporting beam (1), and the outer diameter of the clamping plate (13) is greater than the outer diameter of the steel pipe (2).

5. The steel joist with high tightness according to claim 4, characterized in that: The hoop (3), supporting ribs (4), rib ears (5), third bolts (6), second bolts (7), and pad ears (8) are symmetrically arranged on the upper and lower sides of the support beam (1); a symmetrical bracing plate (9) is connected between the two symmetrical pad ears (8); and both ends of the symmetrical bracing plate (9) are welded to the bottom surface of the transverse plate (801).

6. The steel joist with high tightness according to claim 5, characterized in that: A limiting hole (880) is provided on the transverse plate (801), and a symmetrical pull rod (10) is connected between two upper and lower symmetrical pad ears (8), and both ends of the symmetrical pull rod (10) are inserted into the limiting hole (880). Both ends of the symmetrical pull rod (10) are provided with thread grooves (11), and the end of the symmetrical pull rod (10) is threadedly connected with a fourth bolt (12), and the fourth bolt (12) is located in the pad ear (8).

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