Staggered hole connecting structure of purline and main beam

By designing a misaligned hole connection structure on the purlin and the main beam, and using L-shaped connectors and bolts to fix it, the transportation inconvenience and net section weakening of the traditional connection method is solved, high stiffness, simple and efficient connection is achieved, and anti-capsulation is improved Bending moment capability and transportation efficiency.

CN222252503UActive Publication Date: 2024-12-27NANTONG OUBEN CONSTR TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420843529.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-23
Publication Date
2024-12-27
Estimated Expiration
2034-04-23

AI Technical Summary

Technical Problem

The connection method of the traditional gantry rigid frame has inconvenient transportation and weakened net cross-section of H-shaped steel. The existing welding and hole punching methods lead to large components and insufficient connection.

Method used

The misaligned hole connection structure between the purlin and the main beam is adopted. By opening the misaligned holes on the main beam and the purlin, and fixing them with L-shaped connectors and bolts, an efficient and simple connection is achieved.

Benefits of technology

It improves the anti-overturning bending moment capability of the purlin, simplifies the transportation and construction process, increases the transportation load capacity and component integrity, and reduces the process complexity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222252503U_ABST
    Figure CN222252503U_ABST
Patent Text Reader

Abstract

The utility model provides a staggered hole connecting structure of a purline and a main beam. The staggered hole connecting structure comprises the main beam, a connecting piece and the purline, the purline is lapped on the main beam; a first through hole and a second through hole which are staggered are formed in the lap joint face of the main beam and located on the two sides of the purline. A third through hole connected with the first through hole is formed in a web of the purline, and the first through hole is connected with the third through hole through a connecting piece; a fourth through hole opposite to the second through hole in position is formed in a flange of the purline, and the second through hole is directly connected with the fourth through hole through a bolt; the stress advantage is brought by staggered hole connection, and the staggered holes are distributed on the two sides of the purline, so that the purline has certain overturning moment resistance. In addition, in the long-distance transportation process, beams and columns are not provided with purlin supports, and only pre-punching is needed; during transportation, the components can be tightly arranged, the transportation loading capacity is improved, and the transportation cost is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a staggered hole connection structure of a purlin and a main beam. Background Art

[0002] In traditional portal frames, purlin support plates are usually welded to the flanges of H-shaped steel beams and columns on beams and columns; or holes are punched on beams and columns to connect with purlins or connectors. For components with welded purlin support plates, the transportation volume is large and inconvenient; and the practice of punching holes in pairs seriously weakens the net cross-section of the H-shaped steel. Utility Model Content

[0003] The utility model aims to provide a connection structure with high connection rigidity, simple and efficient connection method, and the ability to guarantee the integrity of purlins and main beams to the maximum extent.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a staggered hole connection structure of a purlin and a main beam, which is characterized by comprising a main beam, a connecting piece and a purlin; the purlin is overlapped on the main beam;

[0005] On the lap joint surface of the main beam, two staggered first and second through holes are provided on both sides of the purlin; a third through hole connected to the first through hole is provided on the web of the purlin, and the first through hole is connected to the third through hole through a connecting piece; a fourth through hole opposite to the second through hole is provided on the flange of the purlin, and the second through hole is directly connected to the fourth through hole through bolts.

[0006] Furthermore, the main beam is an H-shaped steel beam, and the first through hole and the second through hole are both opened on the flange of the H-shaped steel beam.

[0007] Furthermore, the main beam is vertically overlapped with the purlin, and the connecting piece is an L-shaped connecting piece.

[0008] Compared with the prior art, the advantages of the present invention are:

[0009] 1. The staggered hole connection brings the advantage of force, which is distributed on both sides of the purlin, so that the purlin has a certain ability to resist overturning bending moment.

[0010] 2. During long-distance transportation, beams and columns do not need purlins and only need to be pre-punched. During transportation, the components can be arranged closely to increase the transportation load capacity.

[0011] 3. The main beam and purlin are simply fixed by bolts, making on-site construction convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the staggered connection between the H-shaped steel beam and the purlin in the embodiment of the utility model.

[0013] Figure 2Schematic diagram of the staggered holes of the H-shaped steel beam in an embodiment of the present invention.

[0014] Figure 3 Schematic diagram of an L-shaped connector and bolts in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be further described below.

[0016] like Figure 1 As shown, the utility model proposes a staggered hole connection structure of a purlin and a main beam, the main beam is an H-shaped steel beam 2, and the purlin 1 is overlapped on the flange of the H-shaped steel beam 2;

[0017] like Figure 2 As shown, on the flange of the H-shaped steel beam 2, two staggered first through holes 21 and second through holes 22 are opened on both sides of the purlin 1; a third through hole connected to the first through hole 21 is opened on the web of the purlin 1, and the first through hole 21 is connected to the third through hole through a connecting member 3; a fourth through hole opposite to the second through hole 22 is opened on the flange of the purlin 1, and the second through hole 22 is directly connected to the fourth through hole through bolts.

[0018] In this embodiment, if Figure 1 As shown, the main beam is vertically overlapped with the purlin 1, so Figure 3 As shown, the connecting member 3 is an L-shaped connecting member 3 .

[0019] The staggered punching method of the above structure makes the two holes appear at different times on the same cross section. In this way, the net-to-gross section ratio of the flange is at most the flange width b minus the hole diameter d, divided by the flange width b; that is, (bd) / b. For most light steel flanges, the width is generally around 200mm, and the connecting hole is .5mm. Therefore, the net-to-gross section ratio is 93.75%. It can be taken as 0.94. Compared with opening a pair of holes in the same section, the net section is increased by 6.25%. For the whole frame, it is very meaningful.

[0020] During transportation, beams and columns do not have purlins, only pre-punched holes; in this way, the components can be arranged tightly during transportation to increase the transportation load capacity; at the same time, the lack of pre-welded purlins can also protect other mixed products during transportation from being damaged by the purlins; including loading and unloading personnel, it will also be much safer.

[0021] During installation, on the ground, first install the L-shaped connector 3 to the flange of the beam column, and then install the purlin 1 after hoisting. This is basically the same as the method of the portal frame with welded purlin support plates; without increasing the difficulty of the process, the complexity of the process is reduced.

[0022] The above are only preferred embodiments of the present invention and do not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, may make any equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which shall be deemed as the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. A staggered hole connection structure between a purlin and a main beam, characterized in that: It comprises a main beam, a connecting piece and a purlin; the purlin is overlapped on the main beam; On the lap joint surface of the main beam, two staggered first through holes and second through holes are provided on both sides of the purlin; a third through hole connected to the first through hole is provided on the web of the purlin, and the first through hole is connected to the third through hole through the connecting piece; a fourth through hole opposite to the second through hole is provided on the flange of the purlin, and the second through hole is directly connected to the fourth through hole through bolts.

2. The staggered hole connection structure of purlin and main beam according to claim 1 is characterized in that: The main beam is an H-shaped steel beam, and the first through hole and the second through hole are both opened on the flange of the H-shaped steel beam.

3. The staggered hole connection structure of purlin and main beam according to claim 1, characterized in that: The main beam is vertically overlapped with the purlin, and the connecting piece is an L-shaped connecting piece.