Steel structure frame outer frame pull joint connecting device
By designing a tie-point connection device for stiffening plates, connecting plates, and connecting steel pipes, the problems of complicated construction and high cost of steel beam scaffolding connections were solved, enabling convenient installation and efficient reuse, and improving the connection stability and load-bearing capacity of the steel beam scaffolding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, steel beams cannot be pre-embedded and fixed, there is a lack of unified standards for the connection of steel beam external scaffolding tie points, construction is cumbersome, drilling is difficult and costly, and fasteners cannot be recycled.
The tie-point connection device, consisting of stiffening plates, connecting plates, base plates, and connecting steel pipes, connects the H-beams to the external frame with fasteners to form a stable rigid connection node. The device can be prefabricated, is easy to install, and can be reused.
It enables convenient installation of steel beam scaffolding tie points, improves construction efficiency and reusability, enhances the stability and load-bearing capacity of the connection, and reduces construction costs.
Smart Images
Figure CN224549603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a steel structure frame external scaffolding tie-point connection device. Background Technology
[0002] In the construction industry, scaffolding tie points are a key focus of construction safety management and a fundamental aspect of safety management. Inadequate or missing tie points are common problems on construction sites. Typically, scaffolding tie points are installed using methods such as pre-embedded steel pipes or bolts. For pre-embedded bolt tie points, pre-drilled bolt holes are made in the concrete beam side. After concrete pouring and formwork removal, the connecting bolts are tightened into these pre-embedded bolt holes, and the scaffolding is then connected and secured to the steel pipes using fasteners.
[0003] However, pre-embedded steel pipes and bolts are only suitable for concrete beams; steel beams cannot be pre-embedded and fixed. Currently, there is no unified standard for the connection of steel beam scaffolding tie points, and the construction is cumbersome, drilling is difficult, additional fasteners are not recyclable, and costs are high. Utility Model Content
[0004] In view of this, the present invention provides a steel structure frame external scaffolding tie-point connection device, which is easy to install, highly stable, and the components can be reused.
[0005] This utility model is achieved through the following technical solution: a steel structure frame external scaffolding tie-point connection device, the steel structure frame including H-shaped steel beams; the tie-point connection device includes stiffening plates, connecting plates, base plates, connecting steel pipes, and fasteners; the stiffening plates are fixed on the side of the H-shaped steel beam facing the external scaffolding, and the stiffening plates are perpendicular to the web and upper flange of the H-shaped steel beam; the connecting plates are parallel to the stiffening plates and vertically fixed on one side of the base plate, and the connecting plates and stiffening plates are fixedly connected by fasteners; the other side of the base plate is fixedly connected to the external scaffolding through connecting steel pipes.
[0006] Furthermore, the ends of the stiffening plate facing the web, upper flange, and lower flange of the H-beam are welded and fixed to the web, upper flange, and lower flange, respectively.
[0007] Furthermore, the end of the stiffening plate facing the bottom plate abuts against the middle of the bottom plate.
[0008] Furthermore, the connecting steel pipe is vertically fixed in the middle of the base plate.
[0009] Furthermore, the connecting plate is located on one or both sides of the stiffening plate.
[0010] Furthermore, the spacing between the connecting plates on both sides of the stiffening plate is consistent with the thickness of the stiffening plate.
[0011] Furthermore, the connecting plate and the stiffening plate are provided with corresponding through holes for fastener connection.
[0012] Compared with existing technologies, the beneficial effects of this utility model are:
[0013] 1. This utility model uses a stiffening plate fixed to the H-shaped steel beam, and the connecting plate and the stiffening plate are connected by fasteners. The other side of the connecting plate is connected to the external frame through a connecting steel pipe, forming a stable rigid connection node. This tie-point connection device can be prefabricated, and the installation time is greatly reduced compared with the traditional solution. Moreover, there is no damage to the steel structure frame and external frame during installation and dismantling, the reuse rate is high, and the construction efficiency is greatly improved.
[0014] 2. The ends of the stiffening plate of this utility model facing the web plate, upper flange plate, and lower flange plate are respectively welded and fixed to the web plate, upper flange plate, and lower flange plate of the H-shaped structure, further increasing the stability and safety of the tie-point connection device.
[0015] 3. The spacing between the connecting plates on both sides of the stiffening plate is the same as the thickness of the stiffening plate. The two connecting plates place the stiffening plate in the middle and are connected by fasteners, which further increases the load-bearing capacity of the tie-point connection device.
[0016] 4. The connecting plate and stiffening plate of this utility model are provided with corresponding through holes for fastener connection; the installation is faster than the traditional solution, the construction efficiency is further improved, and the installation and disassembly process is quick, convenient and non-destructive. Attached Figure Description
[0017] Figure 1 This is an elevation view of the connection between the tie-point connection device of this utility model and the H-shaped steel beam.
[0018] Figure 2 This is a plan view of the connection between the tie-point connection device of this utility model and the H-shaped steel beam.
[0019] Figure 3 This is a plan view of the tie-point connection device of this utility model.
[0020] Figure 4 This is an elevation view of the connection between the H-shaped steel beam and the external frame of this utility model.
[0021] Among them, 1-H-shaped steel beam, 11-web plate, 12-upper flange plate; 2-stiffening plate; 3-connecting plate; 4-bottom plate; 5-connecting steel pipe; 6-bolt; 7-outer frame, 71-tie crossbar; 8-tie point connection device. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0023] This utility model provides a steel structure frame external scaffolding tie-point connection device, such as... Figure 1 , 4 As shown, the tie-joint connection device 8 is used to connect the steel structure frame and the external frame 7. The steel structure frame includes an H-beam 1, which includes an upper flange plate 12, a lower flange plate, and a web plate 11. The upper flange plate 12 and the lower flange plate are arranged in parallel, and the web plate 11 is located between the upper and lower flange plates, in the middle of the two. The web plate 11 is perpendicularly connected to both the upper and lower flange plates.
[0024] The H-beam 1 is divided into two sides by the web 11. The direction of the line connecting the two flanges is the height direction, and the direction of the line connecting the two sides of the H-beam 1 is the width direction.
[0025] The tie-point connection device 8 includes a stiffening plate 2, a connecting plate 3, a base plate 4, a connecting steel pipe 5, and fasteners. The stiffening plate 2 is fixed on the side of the H-beam 1 facing the outer frame 7. The stiffening plate 2 is located between the upper and lower flange plates and is perpendicular to the web plate 11 and the upper flange plate 12.
[0026] In some embodiments, the ends of the stiffening plate 2 facing the web plate 11, the upper flange plate 12, and the lower flange plate are welded and fixed to the web plate 11, the upper flange plate 12, and the lower flange plate, respectively. The height of the stiffening plate 2 is the same as the height of the web plate 11.
[0027] In some embodiments, the end of the stiffening plate 2 facing the base plate 4 abuts against the middle of the base plate 4. The width of the stiffening plate 2 does not exceed the distance from the sides of the upper and lower flanges to the web plate 11.
[0028] like Figure 2 , 3 As shown, the connecting plate 3 is parallel to the stiffening plate 2 and is vertically fixed to one side of the base plate 4 by welding. The connecting plate 3 abuts against the stiffening plate 2 and is fixedly connected by fasteners. The other side of the base plate 4 is fixedly connected to the outer frame 7 by connecting steel pipe 5.
[0029] In this embodiment, as Figure 4 As shown, one end of the connecting steel pipe 5 is vertically fixed to the middle of the base plate 4 by welding, and the other end of the connecting steel pipe 5 is fixedly connected to the tie rod 71 provided on the outer frame 7.
[0030] The connecting plate 3 can be disposed on one or both sides of the stiffening plate 2. The connecting plate 3 and the stiffening plate 2 have corresponding through holes for fastener connection. In this embodiment, as shown... Figure 2As shown, the connecting plate 3 is located on one side of the stiffening plate 2. The connecting plate 3 and the stiffening plate 2 are provided with corresponding through holes and are connected together by bolts 6.
[0031] In some other embodiments, two connecting plates 3 are provided, which are respectively disposed on both sides of the stiffening plate 2 and abut against the stiffening plate 2. That is, the distance between the two connecting plates 3 is the same as the thickness of the stiffening plate 2. The thickness of the stiffening plate 2 refers to the length of the web plate 11 along the line connecting the two sides of the H-shaped steel beam 1. The two connecting plates 3 and the stiffening plate 2 located between the two connecting plates 3 are connected together by bolts 6.
[0032] In practice, the stiffening plate 2 can be made of 10mm thick steel plate, the base plate 4 and the connecting plate 3 can be made of 8mm thick steel plate, the fasteners can be M20 bolts, and the corresponding through hole diameter is 22mm.
[0033] The tie-point connection device 8 of this application completely solves the technical problem that tie points cannot be pre-embedded in the H-beam 1. The base plate 4, connecting plate 3, and connecting steel pipe 5 are welded to form a standardized connection device with a high degree of standardization. It can be put into use directly without complicated tools, and the installation process is simple and convenient. It ensures the firmness and reliability of safety protection without damaging the steel structure frame and the external frame 7 structure. The connecting plate 3 and the stiffening plate 2 are connected by fasteners, which are easy to disassemble and reuse, ensuring a high turnover rate.
[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A steel structure frame external scaffold tie-point connection device, characterized in that, The steel frame structure includes H-beams; The tie-point connection device includes a stiffening plate, a connecting plate, a base plate, a connecting steel pipe, and fasteners; the stiffening plate is fixed on the side of the H-beam facing the outer frame, and the stiffening plate is perpendicular to the web and upper flange of the H-beam; The connecting plate is parallel to the stiffening plate and fixed vertically to one side of the base plate. The connecting plate and the stiffening plate are fixedly connected by fasteners. The other side of the base plate is fixedly connected to the outer frame by connecting steel pipes.
2. The steel structure frame external scaffolding tie-point connection device as described in claim 1, characterized in that, The stiffening plate is welded and fixed to the web, upper flange, and lower flange of the H-beam, respectively.
3. The steel structure frame external scaffolding tie-point connection device as described in claim 1, characterized in that, The end of the stiffening plate facing the bottom plate abuts against the middle of the bottom plate.
4. The steel structure frame external scaffolding tie-point connection device as described in claim 1, characterized in that, The connecting steel pipe is vertically fixed in the middle of the base plate.
5. The steel structure frame external scaffolding tie-point connection device as described in claim 1, characterized in that, The connecting plate is located on one or both sides of the stiffening plate.
6. The steel structure frame external scaffolding tie-point connection device as described in claim 5, characterized in that, The spacing between the connecting plates on both sides of the stiffening plate is the same as the thickness of the stiffening plate.
7. The steel structure frame external scaffolding tie-point connection device as described in any one of claims 1-6, characterized in that, The connecting plate and stiffening plate have corresponding through holes for fastener connection.