Three-blade pin hinge type bridge cylindrical pier column creeping formwork device

Abstract

The invention discloses a three-blade pin hinge type bridge cylindrical pier column creeping formwork device and a construction method, and is applied to construction of a bridge cylindrical pier. The three-blade pin hinge type bridge cylindrical pier column creeping formwork device is divided into a formwork system, a platform system, a hydraulic jacking and fulcrum conversion system and a crawling ladder channel system. According to the structural system of the device, the creeping formwork concept, the mechanical principle that a pin hinge type formwork structure increases the degree of freedom of plates, the characteristic that hoops are combined with circular wedge-shaped supports and have the self-locking function are adopted, and the innovative thinking that through long pin shafts are combined, crawling ladder channels are synchronously lifted, and the bottom is lengthened and connected with standard sections is adopted; the problems that a two-blade bolting type formwork structure used for several decades is difficult to technically improve, the entity project amount is small, the measure cost input cost is high, the safety controllability of a large amount of aloft work is poor, and the work labor intensity is large are solved. Popularization and application of the three-blade pin hinge type formwork structure have revolutionary influence on the construction technology of the cylindrical pier, and the construction of the cylindrical pier enters the era of the three-blade pin hinge type formwork structure.

Description

technical field [0001] The technology of the invention belongs to the technical field of pouring bridge garden column pier construction, and in particular relates to a three-leaf pin hinge bridge garden column pier climbing formwork system and a construction method. Background technique [0002] my country's highway bridges and municipal viaducts are generally designed with garden column piers (unless special landscape requirements) when the bridge pier column height is less than 30 meters. The construction of garden column piers with a height of 30 meters and below is extremely common. For a long time, the construction method is to use two-leaf and half-circular formwork blocks to buckle and bolt to form an integral cylindrical formwork system. This construction method has been used for decades. Although there are some minor improvements in the formwork structure and construction platform, However, there is no change in the connection method of the two-leaf semi-circular fo...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the technology of the present invention is to overcome the shortcomings of the existing cylindrical bridge pier construction methods and devices, provide a new type of cylindrical bridge pier construction formwork equipment, realize high construction efficiency, fast progress, safe and reliable process, and improve construction operations A three-leaf pin-hinge bridge garden column pier climbing formwork device that is environmentally friendly, reduces labor intensity, and saves construction costs

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