Camellia nitidissima type structure main tower construction method

Abstract

The invention provides a camellia nitidissima type structure main tower construction method which comprises the following steps: correspondingly dividing each tower column into a plurality of tower body sections, tower arch sections and closure sections according to a three-dimensional model, and calculating and processing a template and a framework of each section; pouring the tower body sections, and for the tower body sections which incline outwards by more than or equal to 5 degrees in the transverse bridge direction and the longitudinal bridge direction, mounting a tower body longitudinaltensioning device between every two tower bodies, and mounting tower body transverse tensioning devices in the tower bodies so as to ensure the line type control of the tower bodies; pouring the tower arch sections and the closure sections; installing a tower arch longitudinal restraining device between every two tower arches; and installing and tensioning stay cables, and dismantling the tower body longitudinal tensioning devices, the tower body transverse tensioning devices, the tower arch longitudinal restraining devices and a supporting steel frame after tensioning is completed. By meansof the method, it is guaranteed that the line type of the main tower meets the design requirement, and the stability of the main tower structure can be guaranteed in the construction process.

Description

technical field [0001] The invention relates to the technical field of structural construction of a cable-stayed bridge with a special-shaped single tower in space, in particular to a construction method for a main tower of a golden camellia type structure. Background technique [0002] In recent years, many designers have designed a variety of special-shaped cable-stayed bridges, so that the role of cable-stayed bridges is not limited to transportation but also endows them with landscape features. Moreover, single-tower cable-stayed bridges are very flexible in site selection, often Due to the complexity of the terrain, the span of the single-tower cable-stayed bridge is asymmetrical, which will increase the difficulty of the mechanical analysis of the cable-stayed bridge. The stress of the cable-stayed bridge is complicated, and the construction process is various. The cable force of the cable-stayed bridge structure composed of tower cable girders plays a vital role in th...

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Problems solved by technology

[0002] In recent years, many designers have designed a variety of special-shaped cable-stayed bridges, so that the role of cable-stayed bridges is not limited to transportation but also endows them with landscape features. Moreover, single-tower cable-stayed bridges are very flexible in site selection, often Due to the complexity of the terrain, the span of the single-tower cable-stayed bridge is asymmetrical, which will increase the difficulty of the mechanical analysis of the cable-stayed bridge

The stress of the cable-stayed bridge is complicated, and the construction process is various. The cable force of the cable-stayed bridge structure composed of tower cable girders plays a vital role in the rationality of the force of the whole bridge. Therefore, a reasonable bridge design cable force Both cable-stayed bridges and reasonable construction tension force are very important to cable-stayed bridges, and there are still many problems in cable-stayed bridges. For example, during the construction process, the concrete structure of the tower column may be deformed due to its own weight, or the concrete of the tower column may be displaced along the bridge direction during the tensioning process of the cable stay cables, which will affect the stability of the main tower structure

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