Gradient functional concrete tower column structure and construction method thereof

Abstract

The invention discloses a gradient functional concrete tower column structure and a construction method thereof. The gradient functional concrete tower column structure comprises a functional layer and a structural layer whose cross sections are arranged in sequence from outside to inside; a functional structure transitional area is arranged between the functional layer and the structural layer; the functional layer and the structural layer are respectively formed by pouring; a concrete tower column structure, which has no macroscopic interface, whose components are in gradient transition andwhich simulates skin, is formed among the functional layer, the structural layer and the functional structure transitional area; the mixed concrete of the functional layer and the structural layer istransported to the field to be poured; during pouring, the top surface of the concrete of the functional layer is always kept to be about 30 cm higher than the concrete of the structural layer; vibrating is carried out during pouring; and when the concrete is poured to a height of 4.5 m, the pouring is stopped. The gradient functional concrete tower column structure has the advantages that the concrete construction quality is effectively guaranteed, problems of honeycombs and dot surfaces are avoided, the durability and ornamental value of the concrete tower column are enhanced; the later maintenance cost of the ultrahigh tower concrete structure is reduced to adapt the composite demands of the concrete tower column on mechanical property, durability and beauty.

Description

Technical field: [0001] The invention relates to the field of tower column structure construction, and designs a gradient function concrete tower column structure and a construction method thereof, which are suitable for long-span bridge cable tower projects and other gradient concrete structure projects. Background technique: [0002] As a key component of bridges, concrete tower columns are affected by traditional concrete materials, structural performance limitations, and harsh construction environments. Construction cracking problems are common, resulting in inherent deficiencies in the quality of tower columns, which reduces the safety, applicability, and durability of the service period. At the same time, the traditional gray concrete towers are not aesthetically pleasing, which affects the coordination of the bridge with the natural and social environment and increases the cost of beautification. [0003] The volume stability of modern concrete is poor. In addition, u...

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Problems solved by technology

However, under the harsh construction environment, there is still a lack of systematic research on the cracking prevention of concrete tower columns, so that the current material properties, structural design and construction level are difficult to ensure that the cracks reach a harmless level

At the same time, cable-stayed bridges are mostly used as landscape landmark buildings, and the traditional gray concrete towers are not aesthetically pleasing. In addition, construction cracks and construction segment joints are poor, which affects the coordination of the bridge with the natural and social environment and increases the cost of beautification.

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