Abstract
This paper considers prefabricated steel structures with a corrugated wall. Their relevance of development, new improvements of existing beam structures and their application are substantiated. Composite beams are known and widespread, a significant drawback of which is the inseparability and the need for their production in the factory, even despite the enlargement as assembly unit. Beams of a composite I-beam are offered, but of a detachable section of individual elements (flanges - rolled steel: corner, channel, box section; web-profiled sheet). Particular attention is paid to be prefabricated - demountable and the possibility of their delivery to the installation site in a “detailed” form, assembly and installation in a building site, dismantling (if necessary), and reuse. Between themselves, fastening is carried out on self-tapping screws or bolts, which allows assembly at the installation site. For increase the rigidity of the corrugated wall without a significant change in geometric parameters, including web thickness, additional layers of the profiled sheet will be sufficient amplification. In addition, this configuration allows you to increase the bearing capacity. The advantages of the design of I-beams with corrugated web are revealed: accessibility of materials, repeated use of the beam, low laboriousness, cutting of elements and assembly can be carried out at the construction site, waste-free production, reduced transportation costs, the possibility of selecting a section depending on the load.
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