Evaluating the Behaviour Factor of Medium Ductile SMRF Structures

Autor:	Eric Fournely, Abdelhamid Bouchaïr, Taïeb Branci, Djamal Yahmi
Rok vydání:	2017
Předmět:	Materials science Composite material Geotechnical Engineering and Engineering Geology Civil and Structural Engineering
Zdroj:	Periodica Polytechnica Civil Engineering.
ISSN:	1587-3773 0553-6626
Popis:	In seismic codes, the capacity of structures is calculated using capacity design procedure based on the concept of base shear. The critical parameter in this procedure is the behaviour factor (q-factor), which allows designing the structures at the ultimate limit state accounting for their ductility and reserve strength. In this paper, the q-factor is evaluated for medium ductile steel moment-resisting frames (SMRF) using pushover analysis. The influence of specific parameters, such as the stories number, the “Column/Beam” capacity and the local response of structural members, is studied. The results show that the most important parameter that affects the q-factor is the local response of first-storey columns, while the “Column/Beam” capacity has a less effect on this factor. Furthermore, it is observed that the q-factor value assigned to the studied frames in Eurocode-8 is systematically underestimated for low-rise frame, while the use of this value for high-rise frame is potentially unsafe.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::557331bd54ec549872f4ccc6417d7428 https://doi.org/10.3311/ppci.10419 Zobrazit plný text záznamu