Flexible attachment arranging and selecting method of ultra-large type cooling tower construction tower crane based on tower barrel safety

Abstract

The invention discloses a flexible attachment arranging and selecting method of an ultra-large type cooling tower construction tower crane based on tower barrel safety. The flexible attachment arranging and selecting method of the ultra-large type cooling tower construction tower crane based on the tower barrel safety is characterized by comprising the following steps. The first step is that a cooling tower finite element model is selected to be analyzed in three-dimensional mode, and the three-dimensional analysis of the cooling tower finite element model comprises selecting a concrete material parameter in a construction period, setting a calculating border and confirming a wind load in the construction period and a construction load; the second step is that an initial steel wire rope tensile force and an attachment overall arranging scheme are drawn up, wherein the attachment overall arranging scheme comprises a vertical arranging scheme and a transverse arranging scheme, then the initial steel wire rope tensile force and the attachment overall arranging scheme are applied to the cooling tower finite element model in the construction period to be calculated, the overall arranging scheme is adjusted according to calculation results, and therefore the number of layers and transverse intervals of flexible attachment are confirmed; and the third step is that a local analysis model is built, concrete age when concrete is tensioned by a prestressing force, local intervals and specific reinforcing method are confirmed, and by calculating and analyzing process, the overall arranging scheme and local arranging schemes of a cooling tower are confirmed. By means of the flexible attachment arranging and selecting method of the ultra-large type cooling tower construction tower crane based on the tower barrel safety, the influence of the wind load in the construction period and construction load to a tower barrel is overcome, improvement of the safety and the stability of the tower barrel is facilitated, construction safety of a tower crane is guaranteed, the construction period can be guaranteed, and manufacturing cost of a cooling tower body is controlled.

Description

technical field [0001] The invention relates to a method for selecting a flexible attachment arrangement of a tower crane, in particular to a method for selecting a flexible attachment arrangement of a super-large cooling tower construction tower crane based on the safety of the tower tube. The utility model belongs to the construction control field of super large concrete hyperbolic cooling towers. Background technique [0002] In the construction of super-large cooling towers, tower tube construction is the most critical and difficult part in the whole construction process, and has a particularly prominent impact on safety during the construction period. Due to the small wall thickness and high height of the tower, the problem of vertical transportation is not easy to solve, especially in the construction of ultra-large and ultra-high cooling towers in nuclear power plants or large thermal power plants, conventional porous well-shaped frames, jack-up tower crane rigid atta...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a flexible attachment layout selection method for super large cooling tower construction tower cranes based on the safety of the tower in order to solve the above-mentioned problems of low construction safety, delay in construction period, and high cost of the tower body in the prior art

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