Abstract
The article deals with the design of steel frames with the elements of variable stiffness, formed by the I-beam walls dissolution along the diagonal and subsequent welding. The possibility of rolled I-beams with different profiles optimal use along Industry Standard Association of Enterprises and Organizations for Standardization of Ferrous Metallurgy Products 20-93, for the frame pre-fabricated elements is determined. A calculation algorithm for determining the geometric characteristics of a composite section is presented. The analysis of such elements use effectiveness is carried out, using the example of the building frame, designed according to the frame-link scheme of welded single-span frames with variable section elements in accordance with the standard typicals 828 KM.
Highlights
One of the main and urgent problems of modern engineering and applied research is resource conservation, which is of direct practical importance for the construction industry and economy of the Rostov region
Due to the fact that the most common structural scheme of industrial and warehouse buildings is a metal frame made of architraves with an appropriate system of horizontal and vertical ties, the work considers the optimal options for designing steel frames from Ibeams of variable stiffness
A frame with the use of frames made of rolled I-beams of variable height, formed by dissolving and subsequent welding of the walls of ordinary I-beams, was selected as the research subject
Summary
One of the main and urgent problems of modern engineering and applied research is resource conservation, which is of direct practical importance for the construction industry and economy of the Rostov region. The most popular in the construction industry are the industrial and warehouse buildings [10]. Due to the fact that the most common structural scheme of industrial and warehouse buildings is a metal frame made of architraves with an appropriate system of horizontal and vertical ties, the work considers the optimal options for designing steel frames from Ibeams of variable stiffness. Domestic and foreign design practice offers the following options for designing such frames: 1) use of I-beams with a perforated wall as racks and crossbars; 2) use of I-beams with corrugated walls as posts and crossbars; 3) use of I-beams with fluted web as posts and crossbars; 4) the use of welded I-beams with a wall of variable height as racks and.
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