The Portal Steel Structure is a flat-type structure made of steel. It is composed of variable-section columns and variable-section inclined beams, and is a combination of beam-column element components.
Steel structure building is a type composed of specific steel and is one of the main types of building structures at present. Because of its lightweight and fast construction, it is widely used in large industrial plants, gymnasiums, gas stations, super high-rises, and other fields
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