In:
Stahlbau, Wiley, Vol. 90, No. 11 ( 2021-11), p. 819-830
Abstract:
Validation of wind loads on structures with sandwich elements In 2009, the harmonized standard DIN EN 14509 was introduced with the title “Selbsttragende Sandwichelemente mit beidseitigen Metalldeckschichten”. This is still valid today in the updated form of 2013 and regulates, among other things, the design procedures for sandwich elements. Since its introduction, the wind load modeling for the large‐surface facade elements has been discussed, since the new regulation in connection with the wind load standard DIN EN 1991‐1‐4:2012 led to higher wind loads, especially in the corner area. Therefore, in this study, the impact effects on the structural level were determined and statistically evaluated in order to obtain a realistic wind load model for the considered construction method. High‐resolution wind tunnel measurements were performed as well as structural tests to identify real load transfer effects on full‐scale sandwich systems. The superposition of both and the statistical validation led to the conclusion that the existing models do not show any general load reduction and that the verification of the elements is essentially correct also with respect to the load value in the corner of the building. However, it was shown that the correlation effect that is decisive for the large‐area elements can also be applied to the connecting elements, contrary to current design practice, so that the modeling of local suction peaks is not necessary and the c pe,10 coefficients from DIN EN 1991‐1‐4:2012 can also be used here.
Type of Medium:
Online Resource
ISSN:
0038-9145
,
1437-1049
DOI:
10.1002/stab.202100081
Language:
German
Publisher:
Wiley
Publication Date:
2021
detail.hit.zdb_id:
2159000-X
detail.hit.zdb_id:
240072-8
Permalink