In the construction of high-altitude concrete structures such as dams, bridge piers, and concrete retaining walls, the selection of formwork system directly affects construction efficiency, project quality, and safety guarantees. As a professional suspended external formwork, cantilever climbing formwork has become an ideal choice for the construction of high piers and high-altitude walls due to its unique structural design and outstanding application advantages.
Cantilever climbing formwork is a suspended external formwork system lifted by tower cranes. It mainly consists of core components including anchor system, formwork panel, bracket (including tripod, main waler, and diagonal brace), suspended platform, and retrusive device. Its core working principle is to use embedded parts to bear all loads of the formwork, frame body, and construction. No additional scaffolding is required. Through the cyclic process of "retracting the formwork →lifting the formwork integrally → closing the formwork for pouring", it realizes the layered and continuous construction of high-altitude concrete.
Construct efficiently & conveniently
Cantilever climbing formwork does not require the erection of traditional scaffolding. It relies on embedded parts to bear all loads, saving a lot of man-hours for scaffolding erection and dismantling. The formwork and bracket can be lifted as a whole by tower cranes, with a single pouring height of up to 4.5 meters. Moreover, standard units can be quickly spliced, greatly shortening the construction period. At the same time, the formwork is equipped with a retrusive device, which can be moved back as a whole by 600mm after pouring, providing sufficient operating space for subsequent processes such as steel bar binding and formwork cleaning, and further improving construction continuity.
Flexible control & excellent casting quality
The cantilever formwork has multi-directional adjustment functions, which can be finely adjusted up, down, left, and right. With the diagonal braced formwork, it can enable a maximum front-and-back tilt angle of 30 degrees, easily adapting to the needs of different structural shapes. The panel is made of imported double-sided film-coated plywood, which not only ensures the smooth and flat surface of concrete, reduces the workload of later repair, but also effectively prevents slurry leakage, misalignment, and other problems. In addition, standard units are connected by waling connector and wedge to form an integral stress structure, ensuring that the verticality and flatness of the wall after pouring meet the standards.
Safe & reliable, low construction risks
Cantilever slab formwork is equipped with a special suspended platform, which is convenient for high-altitude operations such as embedded part removal and concrete surface treatment. The platform is firmly erected with protective measures, compliant with high-altitude operation safety standards. The frame body is accurately fixed through embedded parts, with high standardization of connection nodes and strong stability, which can effectively resist concrete lateral pressure (the concrete lateral pressure should be controlled within 40KN/m²). At the same time, there is no need to erect scaffolding at high altitudes during construction, reducing potential safety hazards such as high-altitude falls and object strikes, and providing safety guarantees for construction personnel.
Practical & cost-effective
Formwork accessories are produced in a serialized and stereotyped manner with strong versatility. Core components such as embedded parts and tensile bolts can be reused, reducing material loss and procurement costs. During construction, no additional reinforcement measures are required, reducing the investment in auxiliary materials such as scaffolding and reinforcement parts. At the same time, the construction period is shortened, indirectly reducing labor and mechanical rental costs. In addition, the formwork panel is easy to clean and has a large number of turnovers, showing significant cost-effectiveness in long-term use.
Wide adaptability & scenarios
Whether it is straight walls, inclined structures, or different project types such as dams, bridge piers, and tunnel linings, cantilever climbing formwork can be flexibly adapted through unit combination, angle adjustment, and other methods. Its single pouring height can be adjusted according to project needs, and standard units and special-shaped units can be flexibly combined to meet the structural design requirements of different projects. The scope of application covers various high-altitude concrete construction scenarios.
