Construction method for chimney wall and special electric jacking flat bridge

Abstract

The invention discloses a construction method for a chimney wall and a special electric jacking flat bridge. The construction method comprises the following steps of: building a bottom tube body on a basis of chimney by using a tripod rollover system; mounting a construction lifter in the center of the chimney to serve as vertical transportation equipment; erecting the electric jacking flat bridge, and supporting a large center platform of the electric jacking flat bridge through an elastic brace rod; vertically conveying the large center platform through the vertical transportation equipment, and annularly and horizontally conveying the large center platform through an annular horizontal transportation passage consisting of internal and external hoisting frames and hoisting platforms of the electric jacking flat bridge and tripods; binding steel bars, dismounting the tripods and templates, hoisting the internal and external hoisting frames, and performing concrete pouring construction; recycling the tripods layer by layer till the construction is finished; timely cutting off redundant parts of the large center platform along with the reduction of the radius of the chimney, and detaching the external hoisting frame at the outer end of the elastic brace rod; and detaching the internal hoisting frame after the construction reaches the top. The construction method has the advantages that the problem of high-altitude horizontal transportation can be solved, the abutted seams of the templates are regular, the quality is easy to control, the impression is good, the construction is safe, the construction speed is high, and the one-time investment is less.

Description

technical field [0001] The invention relates to a construction method for the wall of a chimney and a special electric jacking bridge. Background technique [0002] The traditional chimney wall construction mostly adopts sliding form and electric lifting formwork technology, and vertical transportation adopts electric winch to lift the hanging cage in the center of the chimney through the lifting derrick or directly uses the construction hoist. Since 1999, all investors have required the construction of chimneys to use electric lifting formwork or hanging tripod overturning construction technology. [0003] The electric mold lifting operation platform is supported on the concrete cylinder wall with a certain strength through the lifting frame. The platform is lifted by a reducer and a screw rod for lifting, and the lifting is stable and the synchronization effect is good. The operating platform will not tilt; the formwork adopts a large area of ​​the unit It is easy to asse...

AI Technical Summary

Problems solved by technology

However, the tripod and formwork are completely lifted manually, and the labor intensity of workers is high

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