Paweł Żwirek
Czasopismo Techniczne, Architektura Zeszyt 8 A (15) 2014, 2014, s. 103 - 11
https://doi.org/10.4467/2353737XCT.14.195.3283In modern architecture, the roof function is not only to protect buildings against environmental influences. Designers often use single or multi-curved roofs. One of the issues to be considered at the structural design stage is selection of the support structure technology, thanks to which it will be possible to obtain a curved roof with a smooth surface. In case of objects such as airport terminals (eg., in Wroclaw, Lodz, Rzeszów- Jasionka), sports and entertainment halls, conference centers (such as presently constructed in Krakow) and theme parks, mostly self-supporting metal panels are used (usually aluminum, about the length of one element up to tens of meters. The paper will present selected issues of forming the supporting structure of the multi-curved roofs made of self-supporting metal panels.
Paweł Żwirek
Czasopismo Techniczne, Budownictwo Zeszyt 4-B (12) 2014 , 2014, s. 101 - 108
This article presents the results of the statistical research of the mechanical properties of sheets of Polish grades DX51D, DX52D and DX53D, made of low carbon steel for cold forming, continuously hot-dip coated. DX-type sheets, in particular DX51D, produced according to standard EN 10346 [4], can be used, inter alia, to produce corrugated metal sheets and sandwich panels. Standard EN 10346 [4] does not give at all, or gives in the form of very wide intervals, strength parameters for sheets of DX type. Characteristic and design values of yield strength and tensile strength have been presented in the article. Also, the values of partial factors for DX-type steel have been analyzed.