Multi-span continuous steel latticed shell accumulative sliding construction method

Abstract

The invention relates to a multi-span continuous steel latticed shell accumulative sliding construction method. The multi-span continuous steel latticed shell accumulative sliding construction method comprises the following steps that (1) structure safety computing is conducted, a scaffold, a sliding track beam, a track and a tower crane which meet the requirements are determined; (2) the scaffold, the sliding track beam, the track and the tower crane are mounted according to design requirements; (3) a first rank of latticed shell unit is assembled in an assembling zone; (4) steel strands are pulled between footings on the two side of the first rank of latticed shell unit through proper structures, and stress is pre-applied to the steel strands; and (5) the first rank of latticed shell unit is made to advance along the track through a push-pull device, the first rank of latticed shell unit is stopped when gets over the distance of the length of a second rank of latticed shell, then the second rank of latticed shell unit is assembled and moved in the same mode and so on, a whole latticed shell is formed after mounting of all the latticed shell units is completed. The method is convenient to construct, stable and safe.

Description

technical field [0001] The invention belongs to the field of building construction engineering, and relates to a construction method for a multi-span steel reticulated shell structure, in particular to a construction method for accumulative slippage of a multi-span continuous steel reticulated shell. Background technique [0002] At present, the railway station building mostly adopts large-area, long-span and complex continuous steel reticulated shell structure. In the existing technology, there are two main methods for large-area, long-span and complex continuous steel reticulated shell structure system: 1. In situ assembly, 2. , Monomer sliding assembly. [0003] Among them, the traditional in-situ assembly has high requirements on the effective hoisting range of the hoisting equipment when installing large-area, long-span and complex continuous steel reticulated shell structures. It is necessary to add multiple tower cranes or truck cranes to cover the construction range....

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Problems solved by technology

[0004] Among them, the sliding assembly of the single body requires the use of auxiliary steel beams and temporary steel supports. While increasing the amount of steel used, because the temporary auxiliary steel beams and temporary steel supports are used, the auxiliary steel beams and temporary steel supports are removed after they are in place. The steel support is installed in place, and the stability of the single structure is not good during the sliding process of the single body, which is prone to safety hazards

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