Method for designing switchyard structure

Abstract

The invention discloses a method for designing a switchyard structure. The method is used for complex transformer substation frameworks with multiple steel beams and complex modeling. The method comprises the following steps that A, steel beams are grouped according to the lengths of steel beams of the switchyard structure; B, reference steel beams are selected to be analyzed, and the overall rigidity of the reference steel beams is calculated; C, an equivalent steel beam model which is identical with the reference steel beams in overall rigidity and simple in structure is built; D, a structure model composed of equivalent steel beams and structure columns is built, finite element analysis is carried out, and section design of the structure columns is completed; E, a space lattice type steel beam model is built, internal force of ends of the equivalent steel beams and loads borne by the equivalent steel beams are exerted to the space lattice type steel beam model, finite element analysis is carried out, and section design of the reference steel beams is completed; F, design results are applied to other steel beams of the same group, and design of the switchyard structure is completed. The method can simplify the complex structure, reduce modeling workload, shorten the design cycle and improve work efficiency.

Description

technical field [0001] The invention relates to a design method for a substation structure, especially for a complex substation structure with many steel girders and complicated modeling. Background technique [0002] In the substation architecture design, after the preliminary design of the architecture structure is completed, it is necessary to verify whether the strength and deformation of the designed steel architecture structure meet the specification requirements through modeling and structural calculation, and determine the section bearing capacity of the space lattice steel beam. Bearing capacity adjusts the section size of the space lattice steel beam. The substation structure includes structural columns and steel beams composed of multiple components. The current design method is to use the structural steel beams and structural columns as a whole to model, and the steel beams use space lattice steel beams. The internal force is analyzed to determine the size of th...

AI Technical Summary

Problems solved by technology

[0003] As the demand for industrial and civil electricity loads increases year by year, the construction tasks of new power facilities are becoming more and more arduous, and large-scale substations continue to emerge. The root steel beam is composed of hundreds of components. The beam-column integral modeling is used, and the finite element analysis software is used for analysis and calculation. The number of structural components in the overall model is huge, which ultimately results in a very heavy workload for finite element calculation and analysis.

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