A light-weight and fast assembly and disassembly mobile platform for T-beam pier top wet joint and temporary support construction

Abstract

The utility model discloses a kind of lightweight quick construction and disassembly movable platform for T beam pier top wet joint and temporary support construction, and platform system is composed of bottom platform and up-down vertical ladder, bottom platform is made by 16 ribbed steel welding;Up-down vertical ladder is made by 16 round steel welding, short side is connected transversely with round steel, and long side is connected transversely with safety rope;Vertical ladder end portion bends out ring and is connected with bottom platform;Top bends out hook and beam surface are fixed.The problem solved by the utility model: for T beam pier top wet joint and temporary support construction lightweight quick construction.The device is reliable in strength, and convenient to construct and disassemble;Ensure the safety, convenience in the construction process of T beam pier top wet joint and temporary support, reduce construction cost, and speed up construction progress.

Description

Technical Field

[0001] This utility model relates to the field of lightweight, rapid installation and dismantling mobile platform for the construction of wet joints and temporary supports on T-beam pier tops. Background Technology

[0002] In the construction of bridge T-beams, the construction of wet joints on the pier tops and the installation of temporary supports are key procedures to ensure the integrity and stability of the bridge structure. These operations need to be carried out in the high-altitude area between the bottom of the T-beam and the top of the pier, where the working space is narrow, the construction points are scattered, and the requirements for the safety, convenience, and adaptability of the equipment are extremely high.

[0003] Currently, the commonly used equipment in the industry mainly includes traditional ground-mounted scaffolding, cantilevered hanging baskets, and simple suspension supports, but there are many pain points in practical applications: Traditional ground-mounted scaffolding requires erection layer by layer from the ground to the working height. The erection and dismantling process is cumbersome, time-consuming, labor-intensive, and material transportation costs are high, making it difficult to adapt to the needs of dispersed operations with multiple piers and long distances. The existing cantilever hanging basket has a complex structure and a large self-weight. It needs to be fixed to the beam with bolts, which not only easily damages the surface of the T-beam, but also has a long installation and dismantling cycle and cannot achieve rapid site transfer. Simple suspension brackets mostly adopt a welded one-piece structure, lack folding design, making them inconvenient to store and transport. In addition, some brackets do not have complete safety protection components, posing a high risk of falls from heights to workers. Most existing equipment is not optimized for the working space on the top of the pier, and its structural dimensions are poorly adapted to the working area. It is easy to interfere with the beam and pier body, which affects the convenience of construction operations and thus slows down the construction progress.

[0004] As bridge engineering demands increasingly higher levels of efficiency, cost control, and safety, there is an urgent need for a lightweight, quick-assembly and disassembly, safe and reliable specialized construction platform that is also suitable for the confined working space on pier tops, in order to address the many shortcomings of existing technologies. Utility Model Content

[0005] Therefore, to address the aforementioned shortcomings, this utility model provides a lightweight, rapid installation and dismantling mobile platform for the construction of wet joints and temporary supports on T-beam pier tops. Based on the deficiencies of existing equipment for constructing wet joints and temporary supports on T-beam pier tops, this technology aims to solve the following core technical problems: To solve the problem of cumbersome and time-consuming installation and dismantling processes of existing equipment, the platform can be quickly set up and dismantled, improving the efficiency of relocation for multi-pier decentralized operations. To address the issues of excessive weight and poor portability of existing equipment, lightweight design reduces the difficulty of transportation and handling, making it suitable for high-altitude and confined space operations. To address the insufficient safety protection of existing simple scaffolding, strengthen fall prevention and instability prevention protection during operation, and ensure the safety of construction workers working at height; To solve the problems of complex structure and low reusability of existing equipment, simplify the equipment construction, realize foldable storage, and reduce construction costs and storage space occupation; To address the issue of poor compatibility between existing equipment and beams, a detachable hook fixing method is used to avoid damage to the T-beam structure, while also improving the equipment's operational flexibility in confined spaces.

[0006] This utility model is implemented as follows: a lightweight, quick-installation, and mobile platform for the construction of wet joints and temporary supports on the top of T-beam piers is constructed. The platform system consists of a bottom platform 1 and upper and lower vertical ladders 2. The bottom platform is made of 16 ribbed steel bars welded together. The upper and lower vertical ladders are made of 16 round steel bars welded together, with the short sides connected laterally by round steel bars and the long sides connected laterally by safety ropes 3. The ends of the vertical ladders are bent into rings 4 to connect with the bottom platform. The top is bent into hooks 5 to fix to the beam surface.

[0007] This utility model has the following advantages: Through targeted structural design, this lightweight, quick-assembly and disassembly mobile platform possesses the following core beneficial effects compared to existing technologies: Lightweight design with outstanding portability: The bottom platform is made of 16 ribbed steel bars welded together, and the upper and lower vertical ladders are made of 16 round steel bars. The overall material selection takes into account both strength and lightness, making it easy to handle manually and drop from heights, and greatly reducing the intensity of transportation and operation. Quick assembly and disassembly, efficient relocation: The platform adopts a foldable structure, with a quick connection design between the end ring of the vertical ladder and the top hook. No complicated anchoring process is required, and it can be quickly assembled in three steps: "lowering-unfolding-fixing". After construction is completed, it can be folded and stored for relocation, which significantly shortens the preparation and finishing time. Comprehensive safety protection and low operational risk: The long side of the vertical ladder is equipped with a safety rope that is connected laterally to form double protection. Combined with the safety belts and life jackets worn by the workers, it effectively reduces the risk of falling from height. The steel welded structure of the bottom platform has reliable strength and provides a stable operating base for the workers. Highly adaptable and easy to operate: It is fixed to the beam surface reinforcement by the top hook, without the need to weld or drill to the main structure of the T beam, thus avoiding structural damage. The hook fixing method can be flexibly adapted to the T beam surface reinforcement with different spacing. The foldable design makes it compact in the storage state, without taking up too much transportation and storage space. Controllable cost and high reusability: The equipment has a simple structure, and the core components are made of conventional steel bars and round steel, resulting in low manufacturing costs; the foldable structure is not easily damaged and can be repeatedly used for pier top operations in multiple bridge projects, reducing long-term construction investment; at the same time, it reduces the labor and material consumption for installation and dismantling, indirectly accelerating the construction progress. Attached Figure Description

[0008] Figure 1 These are the main and side views of the platform system; Figure 2 This is a top view of the platform system; Figure 3 This is a diagram illustrating the process before and after the platform was decentralized. Detailed Implementation

[0009] The following will be combined with the appendix Figures 1-3 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0010] This utility model provides a lightweight, quick-assembly, and mobile platform for the construction of wet joints and temporary supports on T-beam pier tops, as shown in the figure. It can be implemented as follows: The platform system consists of a bottom platform 1 and upper and lower vertical ladders 2. The bottom platform is welded from 16 ribbed steel bars; the upper and lower vertical ladders are welded from 16 round steel bars, with the short sides connected laterally by round steel bars (the short side refers to the side from...). Figure 2 (Looking at the top view from the left and right sides), the long side is connected horizontally by a safety rope 3; the end of the vertical ladder is bent into a ring 4 to connect with the bottom platform; the top is bent into a hook 5 to fix it to the beam surface.

[0011] This invention solves the problem of lightweight and rapid construction of wet joints and temporary supports on T-beam pier tops. The device is strong, reliable, and easy to install and dismantle; it ensures safety and convenience during the construction of wet joints and temporary supports on T-beam pier tops, reduces construction costs, and accelerates construction progress.

[0012] Specific usage instructions: 1. Lower the folding platform to the bottom of the beam, and after unfolding, use the top hook to fix it to the beam reinforcement; 2. Workers wearing safety belts and life jackets descend to the bottom platform via a vertical ladder to construct the wet joint or temporary support at the top of the T-beam pier; 3. After construction is completed, fold the platform and store it properly for future use.

[0013] The specific implementation process of this patent is described below; (a) Assembly and Implementation Steps Bottom platform construction: Φ16mm ribbed steel bars are selected as the main material and processed into a rectangular frame of 1.2m×0.8m (suitable for the working space on the top of the pier). Φ16mm ribbed steel bars are used for welding inside the frame. All welding joints are fillet welds with a weld leg height of ≥6mm, which meets the requirements of the "Code for Welding and Acceptance of Reinforcing Steel Bars" (JGJ18). After welding, the weld slag is removed and anti-rust paint is applied.

[0014] Processing of the upper and lower vertical ladders: Two main vertical ladder poles are made by bending Φ16mm round steel. The length is set according to the working height from the bottom of the T-beam to the top of the pier (usually 2-3m). A Φ16mm round steel is welded every 300mm on the short side (horizontal) of the main vertical ladder pole as a step. The step length is 300mm, and both ends are fully welded to the main pole. The top of the main vertical ladder pole is bent inward to form a hook 5 with a hook radius of 8-10mm (adapted to the diameter of the beam surface steel bars). The ends are ground smooth to avoid scratching the steel bars.

[0015] Connection between the vertical ladder and the bottom platform: Weld four perforated connecting plates (8mm thick) to both ends of the long side of the rectangular frame of the bottom platform; Bend the lower end of the main rod of the vertical ladder into a circular ring 4 (20mm in diameter), and hinge it to the connecting plate with M16 bolts to realize the folding function of the vertical ladder and the bottom platform (after folding, the vertical ladder fits into the platform, and the volume is reduced by 60%).

[0016] Safety protection component installation: A fixing ring is installed every 500mm along the long side (longitudinal) of the main pole of the vertical ladder. The safety rope 3 (breaking strength ≥5kN) is passed through the fixing ring and tensioned and fixed. The two ends of the safety rope are locked with double-strand knots to form a longitudinal protective barrier. A 150mm high guardrail (Φ16mm round steel) is welded to the edge of the bottom platform to further improve fall protection safety.

[0017] Overall debugging: Check all welded joints for defects such as porosity and slag inclusions, test the flexibility of the folding mechanism (easy folding / unfolding without jamming), verify the load-bearing capacity of hook 5 (load 200kg weight and maintain it without deformation for 30 minutes), and ensure that the tension of the safety rope meets the protection requirements.

[0018] (II) Implementation Steps Platform deployment: The operator lowers the folded platform to the working area on the top of the pier on the T-beam surface, manually unfolds the vertical ladder and the bottom platform to keep the platform horizontal; hooks 5 at the top of the vertical ladder are attached to the pre-embedded steel bars or main steel bars on the beam surface to ensure that the hooks are fully locked and there is no risk of loosening.

[0019] Safety preparation: Workers should wear standard safety belts (with the safety belt attachment point connected to the safety rope 3 of the vertical ladder) and life jackets. After checking the stability of the platform, they should descend to the bottom platform via the steps of the vertical ladder. Work can begin after confirming that the platform is not shaking.

[0020] Construction operations: On the bottom platform, we carry out operations such as binding of wet joint reinforcement at the pier top, installation of formwork, pouring of concrete or installation and adjustment of temporary supports. The platform grid structure facilitates the cleaning of construction waste and concrete vibration.

[0021] Platform recovery: After the work on a single pier is completed, the workers evacuate to the beam surface, unhook hook 5, fold the vertical ladder to fit the bottom platform, lift the platform to the beam surface with ropes, and store it in a designated area for reuse in subsequent piers.

[0022] The social benefits brought about by this application are described below; Improving construction safety: Through multiple protective designs including guardrails, safety ropes, and stable hooks, the risk of falls from heights while working on top of T-beam piers is significantly reduced, the accident rate is decreased, the lives of construction workers are protected, and the pressure on social safety management is alleviated.

[0023] Saving social resources and costs: Lightweight design reduces steel consumption (saving more than 60% of materials compared to traditional scaffolding), and the foldable and reusable structure can be reused in multiple projects, reducing resource waste; the rapid installation and dismantling characteristics reduce labor input, shorten the construction cycle, and indirectly reduce social infrastructure investment costs.

[0024] Promote the upgrading of construction technology: Provide standardized and lightweight special equipment for bridge T-beam pier top operations to replace traditional extensive scaffolding and simple supports, promote the transformation of the bridge construction industry towards efficiency, safety and greenness, and improve the overall construction technology level of the industry.

[0025] Accelerating Infrastructure Projects: Adaptable to the needs of decentralized operations at multiple piers, its rapid relocation capability can shorten the overall construction period of bridges, accelerate the implementation of transportation infrastructure projects, improve regional traffic conditions, promote local economic development and personnel exchanges, and generate significant socio-economic benefits.

[0026] Reduced environmental impact: Lightweight structure reduces energy consumption and carbon emissions during transportation, standardized welding process reduces waste generation, foldable storage reduces storage space occupation, conforms to the concept of green construction, and contributes to ecological environmental protection.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightweight, rapid installation and dismantling mobile platform for the construction of wet joints and temporary supports on T-beam pier tops, characterized in that; The platform system consists of a bottom platform and upper and lower vertical ladders. The bottom platform is made of 16 ribbed steel bars welded together. The upper and lower vertical ladders are made of 16 round steel bars welded together, with the short sides connected horizontally by round steel bars and the long sides connected horizontally by safety ropes. The ends of the vertical ladders are bent into rings to connect with the bottom platform. The tops are bent into hooks to fix them to the beam surface.

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