Steel structure suspended ceiling connecting structure

By using a combination of connecting plates and U-bolts, the welding problem of the steel structure ceiling transition layer is solved, achieving a stable connection and simplified maintenance, reducing construction costs and fire risks, and making it suitable for buildings with high fire protection requirements.

CN223824432UActive Publication Date: 2026-01-23CHINA XINXING BAOXIN CONSTR CORP
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Patent Information

Application Number
CN202520206180.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-23
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

In the existing technology, the welding connection method of steel structure ceiling transfer layer has high requirements for welding process, is prone to residual stress and deformation, and is complicated to maintain, making it difficult to meet the requirements of high fire protection and construction safety.

Method used

The main steel beams of the I-beams are connected to the transfer layer structure using connecting plates and U-bolts. The connecting plates are fixed to the U-bolts by their slightly curved plates and toothed structure, avoiding welding and achieving a stable connection through bolts.

Benefits of technology

It reduces fire hazards at construction sites, simplifies maintenance processes, lowers construction costs, and improves connection stability and construction safety, making it suitable for locations with high fire protection requirements.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223824432U_ABST
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Abstract

The utility model discloses a steel structure suspended ceiling connecting structure which comprises a plurality of I-shaped steel main steel beams on the top layer and a suspended ceiling plate, a transfer layer structure is arranged between the I-shaped steel main steel beams and the suspended ceiling plate, and the transfer layer structure comprises a steel frame, a suspender assembly and a bearing piece from top to bottom. The I-shaped steel main steel beam and the steel frame are connected in a fastened mode through the connecting clamping plates and the U-shaped bolts. Original performance of the steel beam is maintained to the maximum extent in a welding-free connection mode, open fire is not used, potential safety hazards such as fire disasters on a construction site are reduced, and parts are easy to transform, maintain or replace.
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Description

Technical Field

[0001] This utility model relates to the field of building decoration technology, and in particular to a steel structure ceiling connection structure. Background Technology

[0002] As modern architecture develops towards higher heights, larger scales, and more multifunctionality, steel structures are being used more and more widely in the construction field.

[0003] In steel structure buildings, the installation of a transfer floor is particularly necessary when the ceiling height exceeds 3 meters. Higher ceilings bring larger spatial spans and more uncertain loads. Additional loads such as the weight of the ceiling itself and the activities of maintenance personnel will increase significantly. With a reasonable structural design, the transfer floor uses steel beams, steel trusses, and other forms to evenly and effectively transfer these loads to the lower structure, avoiding deformation or damage caused by excessive local stress, thereby ensuring the stability of the building structure.

[0004] From a construction perspective, ceilings exceeding 3 meters in height present significant challenges. A transition layer, acting as an intermediate platform, allows for the pre-installation of embedded parts or connection points for the ceiling joists and panels. This enables construction workers to assemble and secure ceiling components in a relatively safe and easily accessible environment, improving construction efficiency and safety, ensuring installation quality, and reducing later problems. Furthermore, higher ceilings are prone to acoustic issues such as echoes and reverberation. The transition layer can improve the acoustic environment by incorporating sound-absorbing materials and employing a well-designed spatial structure. In terms of fire prevention, the use of fire-resistant materials and construction methods helps prevent the vertical spread of fire, buying time for evacuation and firefighting, and ensuring the safety of life and property within the building.

[0005] The traditional method for connecting the transfer layer to the steel structure is welding. However, this method requires extremely high welding skills and professional welders. Residual stress and deformation are easily generated during the welding process. If not properly controlled, it will affect the structural performance. Furthermore, subsequent inspection and maintenance are difficult, and rectification work after problems are discovered is complex. Summary of the Invention

[0006] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a steel structure ceiling connection structure, which is a ceiling structure that connects the main steel beam of the I-beam to the transfer layer structure through a connecting plate.

[0007] The purpose of this utility model is achieved as follows:

[0008] A steel structure ceiling connection structure includes multiple I-beam main steel beams at the top and ceiling panels. A transition layer structure is provided between the I-beam main steel beams and the ceiling panels. The transition layer structure includes interconnected steel frames, hangers, and support members from top to bottom. The support members support the ceiling panels. The I-beam main steel beams and the steel frames are connected by connecting plates and U-bolts. The connecting plates include a straight plate in the middle and two slightly curved plates on both sides. One curved plate has a notch at the front end, and the other curved plate has a toothed structure at the front end. The straight plate in the middle of the connecting plate has two through holes arranged side by side near the curved plate with the toothed structure. The U-bolts support the upper crossbeam of the steel frame, pressing the upper crossbeam onto the I-beam main steel beams. The curved plates on both sides of the connecting plate press onto the I-beam main steel beams and the upper crossbeam respectively. The curved plate with the toothed structure presses onto the I-beam main steel beams, and the curved plate with the notch presses onto the upper crossbeam, with the upper crossbeam fitting into the notch. The bolt heads on both sides of the bolt pass through the through holes of the connecting plate and are locked with nuts to connect and fix the I-beam main steel beam and the steel frame.

[0009] Furthermore, the suspension rod includes an upper suspension rod and a lower suspension rod. The upper end of the upper suspension rod is connected and fixed to the steel frame. The upper suspension rod and the lower suspension rod are connected by a nut and sleeve thread. The length of the suspension rod can be adjusted by rotating the nut and sleeve. The support component is connected and installed at the lower end of the lower suspension rod.

[0010] Furthermore, the through hole is a strip-shaped through hole.

[0011] Furthermore, the steel frame includes an upper crossbeam and a lower crossbeam, which are connected by columns on both sides to form the steel frame.

[0012] Furthermore, the upper and lower crossbeams are I-beams.

[0013] The beneficial effects of this utility model are: Using connecting plates and bolted connections avoids the high-temperature damage to the steel beam material and internal structure caused by traditional welding methods, thus preserving the original performance of the steel beam to the greatest extent. Furthermore, it avoids open flames, greatly reducing safety hazards such as fires at construction sites, making it particularly suitable for areas with high fire protection requirements. In addition, modification, repair, or replacement of components is easy and simple, which welding cannot achieve. From a cost perspective, bolted connections do not require complex welding equipment or professional welders, reducing equipment purchase, maintenance, and personnel training costs, thereby lowering the overall construction cost.

[0014] The present invention will be further explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connecting plate structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the I-beam main steel beam and the steel frame of this utility model;

[0018] Figure 4 This is a cross-sectional view (AA) of the connection between the I-beam main steel beam and the steel frame of this utility model.

[0019] In the diagram: 1 I-beam main steel beam, 2 connecting plate, 3 U-bolt, 4 steel frame, 5 hanger rod, 6 ceiling plate, 7 support component, 21 through hole, 22 notch, 23 toothed structure, 41 upper crossbeam, 42 column, 43 lower crossbeam, 51 upper hanger rod, 52 nut sleeve rod, 53 lower hanger rod. Detailed Implementation

[0020] A steel structure ceiling connection structure, such as Figures 1-4 As shown, the structure includes multiple I-beam main steel beams 1 at the top and a ceiling panel 6. A transition layer structure is provided between the I-beam main steel beams 1 and the ceiling panel 6. The transition layer structure, from top to bottom, includes interconnected steel frames 4, hangers 5, and support members 7. The support members 7 support the ceiling panel 6. The I-beam main steel beams 1 and the steel frames 4 are connected by connecting plates 2 and U-bolts 3. The connecting plates 2 include a straight plate in the middle and two slightly curved plates on both sides. One curved plate has a notch 22 in the middle of its front end, and the other curved plate has a toothed structure 23 at its front end. The straight plate in the middle of the connecting plates 2 has two through holes 21 arranged side by side on the curved plate side near the toothed structure 23. The U-bolts 21... The U-bolt 3 supports the upper crossbeam 41 of the steel frame 4 and presses the upper crossbeam 41 onto the main steel beam 1 of the I-beam. The two curved plates on both sides of the connecting plate 2 press onto the main steel beam 1 of the I-beam and the upper crossbeam 41 respectively. Among them, the curved plate with toothed structure 23 presses onto the main steel beam 1 of the I-beam, and the curved plate with notch 22 presses onto the upper crossbeam 41. The upper crossbeam 41 is inserted into the notch 22. The bolt heads on both sides of the U-bolt 3 pass through the through hole 21 of the connecting plate 2 respectively and are locked by nuts to connect and fix the main steel beam 1 of the I-beam and the steel frame 4.

[0021] During installation, two U-bolts 3 support the upper crossbeam 41 of the steel frame 4 and press it onto the lower end plate of the I-beam main beam 1. Two connecting plates 2 connect and fix the I-beam main beam 1 and the steel frame 4 from both sides of the I-beam main beam 1. The curved plates on both sides of the two connecting plates 2 overlap the top surfaces of the lower edge of the I-beam main beam 1 and the upper crossbeam 41 of the steel frame 4, respectively. Specifically, the curved plate with toothed structure 23 is pressed onto the I-beam main beam 1, which increases the pressure at the contact point, enhances the stability of the connection, and prevents slippage between the connecting plates 2 and the I-beam main beam 1. The curved plate with notch 22 is pressed onto the upper crossbeam 41, and the upper crossbeam 41 is inserted into the notch 22, which restricts the horizontal displacement of the upper crossbeam 41, so that a stable and reliable connection structure is formed between the connecting plates 2 and the I-beam main beam 1.

[0022] The upper crossbeam 41 of the steel frame 4 adopts an I-beam structure, which has good bending resistance and provides a stable and suitable connection foundation for U-bolts. The shape of the I-beam structure allows the U-bolts to better hold the upper crossbeam 41 in place, and the two work together to form a reliable connection node. In this embodiment, the lower crossbeam 43 also adopts an I-beam structure, which provides good bending resistance and facilitates the installation of the hanger. The upper and lower crossbeams are connected by columns 42 on both sides. The columns 42 of the steel frame 4 adopt L-shaped steel, which reduces weight while ensuring strength.

[0023] The suspension rod 5 includes an upper suspension rod 51 and a lower suspension rod 53. The upper end of the upper suspension rod 51 is connected and fixed to the steel frame 4. The upper suspension rod 51 and the lower suspension rod 53 are connected by a nut and sleeve thread 52. The length of the suspension rod 5 can be adjusted by rotating the nut and sleeve thread 52. The support member 7 is connected and installed at the lower end of the lower suspension rod 53. The ceiling panel 6 is placed on the support member 7.

[0024] Finally, it should be noted that the above is only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the preferred arrangement, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model (such as the application of various formulas, the order of steps, etc.) without departing from the spirit and scope of the technical solution of this utility model.

Claims

1. A steel structure suspended ceiling connecting structure, comprising a plurality of top layer I-shaped steel main girder (1) and a suspended ceiling plate (6), a conversion layer structure is arranged between the I-shaped steel main girder (1) and the suspended ceiling plate (6), characterized in that, The conversion layer structure comprises a steel frame (4), a suspender (5) and a supporting piece (7) connected with each other from top to bottom, the supporting piece (7) supports a suspended ceiling plate (6), the I-beam main steel beam (1) and the steel frame (4) are connected through a connecting clamping plate (2) and a U-shaped bolt (3); the connecting clamping plate (2) comprises a middle straight plate and two side curved plates in a slightly curved shape, wherein: a notch (22) is arranged at the front end of one side curved plate, the front end of the other side curved plate is in a toothed structure (23), two through holes (21) are arranged side by side on the middle straight plate of the connecting clamping plate (2) close to the curved plate side of the toothed structure (23), the U-shaped bolt (3) supports the upper cross beam (41) of the steel frame (4) and presses the upper cross beam (41) on the I-beam main steel beam (1), the two side curved plates of the connecting clamping plate (2) are pressed on the I-beam main steel beam (1) and the upper cross beam (41) respectively, wherein: the curved plate with the toothed structure (23) is pressed on the I-beam main steel beam (1), the curved plate with the notch (22) is pressed on the upper cross beam (41), the upper cross beam (41) is clamped into the notch (22), the two bolt heads of the U-shaped bolt (3) pass through the through holes (21) of the connecting clamping plate (2) and are locked through nuts to connect and fix the I-beam main steel beam (1) and the steel frame (4).

2. The steel structure suspended ceiling connecting structure according to claim 1, characterized in that, The suspender (5) comprises an upper suspender (51) and a lower suspender (53), the upper end of the upper suspender (51) is connected and fixed with the steel frame (4), the upper suspender (51) and the lower suspender (53) are threadedly connected through a nut cylinder rod (52), the length of the suspender (5) can be adjusted by rotating the nut cylinder rod (52), and the supporting piece (7) is connected to the lower end of the lower suspender (53).

3. The steel structure suspended ceiling connecting structure according to claim 1, characterized in that, The through hole (21) is a strip-shaped through hole.

4. The steel structure suspended ceiling connecting structure according to claim 1, characterized in that, The steel frame (4) comprises an upper cross beam (41) and a lower cross beam (43), the upper cross beam (41) and the lower cross beam (43) are connected through two side columns (42) to form a steel frame.

5. The steel structure suspended ceiling connecting structure according to claim 4, characterized in that, The upper cross beam (41) and the lower cross beam (43) are I-beams.