Manufacturing process of welding I-shaped steel for steel structure

Abstract

The invention belongs to the technical field of steel structure buildings, and particularly relates to a manufacturing process of welding I-shaped steel for a steel structure. The manufacturing process is characterized by comprising the following steps: (1) blanking of an upper flange plate, a lower flange plate and a web plate; (2) forming and correcting of the upper flange plate or the lower flange plate; (3) web plate forming; (4) assembly of the upper flange plate, the lower flange plate and the web plate; (5) welding of the upper flange plate, the lower flange plate and the web plate; (6)correcting; and (7) relief of internal stress. The steel-structure welded I-shaped steel flange plates with the inclined surfaces manufactured with the manufacturing process not only reserve the excellent section characteristics of the traditional I-shaped steel, but also overcome the defect that the traditional I-shaped steel cannot be used for processing a section material for a large-section structure.

Description

technical field [0001] The invention belongs to the technical field of steel structure buildings, and in particular relates to a steel structure welding I-beam manufacturing process. Background technique [0002] I-beam and H-beam, which are commonly used in traditional steel structure buildings, have been widely used in steel structure buildings due to their excellent cross-section properties, but there are certain deficiencies in the actual application process: 1. I-beam: The waist width of hot-rolled ordinary I-beams in my country is 100-630mm, and larger-sized materials are often required in construction to meet construction needs; 2. H-shaped steel: The advantage of H-shaped steel compared with I-beams is that it can be welded larger. The cross-sectional size of H-shaped steel meets the needs of construction, but because the H-shaped steel is welded by steel plates, there is no optimal design with a slope of 1:6 for the inner wall of the I-shaped steel leg, resulting in s...

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Problems solved by technology

[0002] I-beam and H-beam, which are commonly used in traditional steel structure buildings, have been widely used in steel structure buildings due to their excellent cross-section properties, but there are certain deficiencies in the actual application process: 1. I-beam: The waist width of hot-rolled ordinary I-beams in my country is 100-630mm, and larger-sized materials are often required in construction to meet construction needs; 2. H-shaped steel: The advantage of H-shaped steel compared with I-beams is that it can be welded larger. The cross-sectional size of the H-shaped steel meets the needs of the building, but because the H-shaped steel is welded by steel plates, there is no optimization design for the inner wall of the I-shaped steel leg with a slope of 1:6 thickness, resulting in serious material waste

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