Abstract
Arch structures made of double corrugated steel sheets, known as K-span, are used as self-supporting building roofs. The cold-rolling method of arch panel production causes the creation of deep-press formed transverse corrugation. The unusual profile shape significantly impedes the use of known design methods. In extreme cases, this might lead to the failure and collapse of K-span structures. This paper presents a method for testing full-size K-span structures using various measuring techniques, and provides a method of numerical analysis of the double corrugated structures. The results of the tests were compared with the results of the numerical analysis to assess the validity of the assumptions made for the calculations. A comparison of the test results and the numerical analyses helped to give practical guidelines for evaluation of the load capacity and stability of double corrugated K-span structures.
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