Construction method for curved surface arc-shaped concrete tower

Abstract

The invention discloses a construction method for a curved surface arc-shaped concrete tower. The curved surface arc-shaped concrete tower comprises double limb tower columns and tower top closure sections. Through a hydraulic climbing formwork method, the double limb tower columns are constructed section by section and step by step along the tower column elevation. During construction of the double limb tower columns, one or more temporary cross struts are installed between the double limb tower columns, brackets are embedded in the upper end inner side walls of all the tower columns to serve as fulcrums, bailey beams are hoisted on the brackets to serve as support platforms of the tower top closure sections, and finally, through a scaffolding method, concrete layered pouring construction is conducted to complete tower closure. The construction method can be used for an extra large cable-stayed bridge double curved surface arc-shaped concrete tower, a curved surface adjustable template is matched with a hydraulic climbing formwork system for construction, operation is convenient, safety is high, the curved surface adjustable template is convenient to adjust, the tower column linetype and matching precision are controlled from the source, and precision control over main tower hoisting is convenient.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method of a curved curved concrete tower. Background technique [0002] In recent years, with the development of economy and society, the domestic requirements for the appearance of urban facilities are getting higher and higher. Bridge buildings must not only meet their basic functional requirements, but also comprehensively consider factors such as geography, environment, humanities, and aesthetics. Many long-span and large-space urban bridges spanning highways, railways, rivers and lakes, as landmark buildings, have increasingly diversified and complex shapes. [0003] The main towers of long-span cable-stayed bridges and suspension bridges are not only the main load-bearing components, but also the key components that determine the shape of the bridge. Among them, the curved curved concrete tower is favored by many bridge architects, but at the sam...

AI Technical Summary

Problems solved by technology

At present, there is a lack of relevant normative guidance for the construction of the curved surface special-shaped concrete main tower structure, and there are few engineering practice experiences that can be used for reference.

At the same time, the structure of the curved special-shaped concrete main tower is complex in shape, difficult in construction and installation, and requires high construction accuracy.

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