Triangular string pipe truss aerial work platform
By designing a triangular tensioned truss aerial work platform, the problem of traditional platforms swaying in the air, affecting welding quality and safety, was solved. It provides a stable high-altitude working space and convenient position adjustment, improving construction efficiency and safety.
Patent Information
- Application Number
- CN202423154007.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Traditional high-altitude welding and non-destructive testing platforms for large-span tubular trusses are prone to swaying in the air, affecting welding quality and safety.
Design a triangular tensioned tube truss aerial work platform, including a top platform, a bottom platform, a corridor, and a ladder. Through the detachable connection between the frame and the upper chord and the ladder and the lower chord, a stable aerial work space and passage are formed, which is suitable for triangular tensioned tube trusses.
It improved welding quality and construction safety, reduced construction difficulty, achieved stability and convenient position adjustment of the work platform, and improved construction efficiency.
Smart Images
Figure CN223548913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of large-span tubular truss construction, specifically to a triangular tensioned tubular truss high-altitude work platform. Background Technology
[0002] A tubular truss is a lattice structure composed of circular tubular members connected at their ends. The advantages of trusses are that the members primarily bear tension or compression, maximizing material utilization, saving materials, and reducing structural weight. For large spans, they can save material, reduce self-weight, and increase stiffness compared to solid-web beams. Large-span tubular truss steel structures, as an important component of modern construction technology, are widely used in large public buildings such as stadiums, convention centers, and airport terminals due to their advantages of large spans, high load-bearing capacity, and high construction efficiency.
[0003] Large-span tubular trusses are generally prefabricated in sections on the ground and then installed by connecting them in the air. Aerial connection requires welding and non-destructive testing of the members in mid-air. Currently, most of these operations use simple suspended platforms that are moved with the aid of cranes. However, these platforms are prone to swaying in the air, which can significantly affect the quality of the welding work and also poses a safety risk. Utility Model Content
[0004] In view of the shortcomings of traditional construction methods and high-altitude work platforms, this utility model provides a mobile and relatively stable work platform that meets the requirements of welding and non-destructive testing while providing safety for workers.
[0005] To achieve the above objectives, the specific technical solution adopted by this utility model is as follows:
[0006] A triangular tensioned truss aerial work platform is provided, which is mounted on the triangular tensioned truss. The triangular tensioned truss includes two parallel upper chords, a lower chord located below the upper chords, and web members connecting the upper and lower chords. The triangular tensioned truss aerial work platform includes:
[0007] The skeleton includes two frames, left and right, a bridging frame connecting the upper parts of the two frames and communicating with both, and two extension frames extending downward from the bridging frame.
[0008] The mounting notch is formed by the left and right frames and the bridging frame, and is used to mount the skeleton frame to the two upper chords.
[0009] The top platform is formed by laying a flat plate on the bottom surface of the bridge frame;
[0010] The bottom platform has two sections, formed by laying flat plates on the bottom surfaces of the two frames respectively;
[0011] The corridor has two sections, each located inside the two bottom platforms, with its ends connected to the bottom platforms and the extension frame, respectively.
[0012] Preferably, the triangular tensioned truss aerial work platform further includes two ladders, the top of which is connected to the extension frame and the bottom to the lower chord. The ladders create a walkway between the lower and upper chords, allowing construction workers to not only perform welding and non-destructive testing (such as ultrasonic testing of weld quality) between the two upper chords, but also to move to the lower chord for related work (such as web member welding).
[0013] Preferably, the area of the bridging frame facing the corridor is not covered with a flat plate, so as to form an upper and lower passage, facilitating the movement and relocation of personnel between the corridor and the top platform.
[0014] Preferably, the top platform, bottom platform, and corridor are all made of steel planks.
[0015] Preferably, the frame is constructed from crossbeams and vertical beams, both of which are channel steel.
[0016] Preferably, each upper chord is connected to the frame via two first connectors, one at the front and one at the back. The first connector includes a U-shaped clamp with threads at both ends and two nuts. The U-shaped clamp encloses the upper chord, and its two ends pass through reserved holes opened on the bottom channel steel of the bridging frame and are locked with a nut respectively.
[0017] Preferably, the ladder and the lower chord are connected by a second connector, which includes a steel wire rope for binding the bottom of the ladder to the lower chord and one or more rope clips for the two ends of the steel wire rope to pass through and tighten and fix the rope.
[0018] When using this utility model of a triangular tensioned truss aerial work platform, a crane is used to lift it to the working surface of the upper chord at the top of the truss, and temporary fixing measures are taken with the upper and lower chords of the truss. Workers then climb from the lower chord to the working platform via a steel ladder at the bottom of the platform to carry out welding work between the two upper chords and non-destructive testing.
[0019] This utility model has the following beneficial effects:
[0020] 1. The high-altitude work space and passage are formed by the top platform, bottom platform, corridor and ladder, which makes it convenient for personnel to move up, down and left and right to find the best construction position, reduce the construction difficulty, and meet the requirements of butt welding and non-destructive testing of the two upper chords.
[0021] 2. A passageway is created between the lower and upper chords using ladders to expand the working area and make it easier for personnel to move around and carry out construction.
[0022] 3. The entire working platform is installed and fixed on the truss through the connection between the frame and the upper chord and the ladder and the lower chord, which has good stability. Even if the entire working platform is installed at an angle, it will not slide, thus ensuring construction safety.
[0023] 4. The connection between the frame and the upper chord, as well as the connection between the ladder and the lower chord, are detachable. After removing the connection structure, the working platform can be slid directly on the upper chord or moved by a crane to adjust the position of the entire working platform on the truss, so as to carry out construction in different areas. The operation is simple.
[0024] In summary, compared with traditional suspended platforms, this utility model of aerial work platform is less prone to swaying, has better stability, and effectively improves welding quality and construction safety; moreover, the construction position is easy to adjust, the construction difficulty is low, and the efficiency is higher. Attached Figure Description
[0025] Figure 1 Example 1: A schematic diagram of the structure of the triangular tensioned truss aerial work platform.
[0026] Figure 2 Example 1: A schematic diagram of the installation of the triangular tensioned truss aerial work platform on the truss.
[0027] Figure 3 : Figure 2 The main view.
[0028] Figure 4 : Figure 2 The right view.
[0029] Figure 5 : Schematic diagram of the connection structure between the skeleton and the upper chord in Example 1.
[0030] Figure 6 : Schematic diagram of the connection structure between the ladder and the lower chord in Example 1.
[0031] In the diagram: Ⅰ-Upper chord, Ⅱ-Lower chord, Ⅲ-Web member, Ⅳ-Connecting member; 1-Frame, 2-Mounting notch, 3-Top platform, 4-Bottom platform, 5-Corridor, 6-Ladder, 7-First connector, 8-Second connector; 11-Frame, 12-Bridge frame, 13-Extension frame, 71-U-shaped clamp, 72-Nut, 81-Wire rope, 82-Rope clip. Detailed Implementation
[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0033] Example 1
[0034] A high-altitude work platform for a triangular tensioned tube truss is used for erecting members onto the triangular tensioned tube truss for welding construction. Figure 2-3 As shown, the triangular tensioned tube truss includes two parallel upper chords I, a lower chord II located below the upper chord I, and a web member III connecting the upper chord I and the lower chord II. Construction workers are performing welding work and non-destructive testing work on the high-altitude work platform to connect the two upper chords I to the butt member IV.
[0035] The structure of the triangular tensioned truss aerial work platform is as follows: Figure 1-4 As shown, the structure includes a frame 1, a mounting recess 2, a top platform 3, a bottom platform 4, a corridor 5, and a ladder 6. Specifically, the frame 1 includes two left and right frames 11, a bridging frame 12 connecting the upper parts of the two frames 11 and communicating with them, and two extension frames 13 extending downward from the bridging frame 12. The mounting recess 2 is formed by the left and right frames 11 and the bridging frame 12, and is used to mount the frame 1 to the two upper chord members I. The top platform 3 is formed by laying a flat plate on the bottom surface of the bridging frame 12; there are two bottom platforms 4, which are formed by laying flat plates on the bottom surfaces of the two frames 11 respectively. There are two corridors 5, which are respectively located inside the two bottom platforms 4, and their two ends are connected to the bottom platform 4 and the extension frame 13 respectively; each corridor 5 also has a corresponding ladder 6 inside, the top of the ladder 6 is connected to the extension frame 13, and the bottom is connected to the lower chord member II, establishing a passage between the upper chord member I and the lower chord member II. The frame 1 is constructed from crossbeams and vertical beams, both of which are channel steel. The flat plates used for the top platform 3 and bottom platform 4, as well as the corridor 5, are all made of steel planks. The area of the bridging frame 12 facing the corridor 5 is not covered with steel planks to leave room for passageways.
[0036] In the aforementioned aerial work platform, construction workers can switch positions between the top platform 3 and the bottom platform 4, between the top platform 3 and the corridor 5, and between the bottom platform 4 and the corridor 5, flexibly adjusting the welding position of the upper chord I and reducing construction difficulty; and can also move back and forth between the upper chord I and the lower chord II via the ladder 6, which also facilitates construction workers to carry out related construction work on the lower chord II.
[0037] The installation and use method of the aerial work platform in this embodiment is as follows:
[0038] A crane is used to lift the aerial work platform to the working surface of the top chord member of the truss, and then place it on the triangular tensioned tube truss. Each top chord member I is temporarily fixed to the frame 1 through two front and rear first connectors 7, as shown below. Figure 5As shown, the first connector 7 includes a U-shaped clamp 71 with threads at both ends and two nuts 72; the U-shaped clamp 71 encloses the upper chord I, and its two ends pass through pre-drilled holes in the bottom channel steel of the bridging frame 12 and are respectively locked with a nut 72. The second connector 8 is used to temporarily fix the ladder 6 to the lower chord II, as shown... Figure 6 As shown, the second connector 8 includes a steel wire rope 81 that winds and binds the bottom of the ladder 6 to the lower chord II, and rope clips 82 that allow the two ends of the steel wire rope 81 to pass through and tighten and fix the rope; more specifically, in this embodiment, the steel wire rope 81 in the second connector 8 has a specification of Φ8, and the number of rope clips 82 is 2.
[0039] Workers climb from the lower chord II to the working platform via ladder 6 at the bottom of the platform. They then select a suitable work position on the top platform 3, bottom platform 4, or corridor 5 to perform welding work on the buttress IV between the two upper chords I, as well as non-destructive testing of the welds. When it is necessary to change the work area, the first connecting piece 7 and the second connecting piece 8 are removed, and the entire working platform can be slid directly on the upper chord I, or moved using a crane. This allows for position adjustment of the working platform on the truss to meet the construction requirements of different areas. Thus, this aerial work platform enables both welding and non-destructive testing of structural members, while ensuring both construction efficiency and safety.
[0040] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. Any changes made by those skilled in the art after reading the specification of the present utility model, as long as they are within the scope of the claims of the present utility model, will be protected by patent law.
Claims
1. A triangular tensioned truss aerial work platform, characterized in that, It is mounted on the triangular tensioned tube truss, which includes two parallel upper chords (Ⅰ), a lower chord (Ⅱ) located below the upper chord (Ⅰ), and a web member (Ⅲ) connecting the upper chord (Ⅰ) and the lower chord (Ⅱ). The triangular tensioned truss aerial work platform includes: The skeleton (1) includes two left and right frames (11), a bridging frame (12) connecting the upper part of the two frames (11) and communicating with them, and two extension frames (13) extending downward from the bridging frame (12); The mounting notch (2) is formed by the left and right frames (11) and the bridging frame (12) and is used to mount the skeleton (1) to the two upper chords (Ⅰ); The top platform (3) is formed by laying a flat plate on the bottom surface of the bridge frame (12); The bottom platform (4) has two, which are formed by laying flat plates on the bottom surfaces of the two frames (11); The corridor (5) has two sections, which are respectively located inside the two bottom platforms (4) and are connected at both ends to the bottom platform (4) and the extension frame (13).
2. The triangular tensioned truss aerial work platform according to claim 1, characterized in that, It also includes two ladders (6), the top of which is connected to the extension frame (13) and the bottom of which is connected to the lower chord (II).
3. The triangular tensioned truss aerial work platform according to claim 1, characterized in that, The area of the bridging frame (12) facing the corridor (5) is not covered with a flat plate.
4. The triangular tensioned truss aerial work platform according to claim 1, characterized in that, The top platform (3), bottom platform (4) and corridor (5) are all made of steel planks.
5. The triangular tensioned truss aerial work platform according to claim 1, characterized in that, The frame (1) is constructed from crossbeams and vertical beams, both of which are channel steel.
6. The triangular tensioned truss aerial work platform according to claim 5, characterized in that, Each upper chord (I) is connected to the frame (1) through two first connectors (7) at the front and rear. The first connector (7) includes a U-shaped clamp (71) with threads at both ends and two nuts (72). The U-shaped clamp (71) encloses the upper chord (I), and its two ends pass through the reserved holes opened on the bottom channel steel of the bridging frame (12) and are locked with a nut (72) respectively.
7. The triangular tensioned truss aerial work platform according to claim 2, characterized in that, The ladder (6) is connected to the lower chord (II) via a second connector (8), which includes a steel wire rope (81) for winding and binding the bottom of the ladder (6) to the lower chord (II) and one or more rope clips (82) for passing through both ends of the steel wire rope (81) to tighten and fix the rope.