Seismic evaluation cylindrical concrete shells

Autor: Hammood Aqeel M., Jawad David A. M.
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Open Engineering, Vol 13, Iss 1, Pp 142-7 (2023)
Druh dokumentu: article
ISSN: 2391-5439
DOI: 10.1515/eng-2022-0417
Popis: The reasons for concrete roof shells’ apparent seismic resistance have been subject to limited research but they have been shown to be inherently resilient to earthquakes. Shells constructed of concrete exhibit high structural efficiency and can therefore be made very thin. As a result of their relatively lightweight nature, thin shell structures are implicitly resistant to earthquake forces. The shell structure is typically designed so that it performs optimally under gravity loads, which are carried mainly by membrane action over the shell surface. As earthquakes induce unexpected horizontal forces, concrete shell structures can be damaged by bending stresses. By studying 8 cm-thick concrete roof shells using parametric analysis, this research shows that small and midsized (span
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