Structural global performance assessment versus individual element-oriented performance-based assessment

Fadaei, Ebrahim and Shakib, Hamzeh and Azarbakht, Alireza (2020) Structural global performance assessment versus individual element-oriented performance-based assessment. Iranian Journal of Science and Technology - Transactions of Civil Engineering, 44. pp. 141-150. ISSN 2228-6160

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    Abstract

    In this paper, three new performance indices are proposed which can be used in order to determine the global performance of a given structure. The ASCE41-13 standard and the FEMA350 guidelines are used as representatives of, respectively, an element-oriented and a system-oriented performance-based assessment algorithm. Two ten-storeyed special steel moment frames, consisting of a regular and an irregular structure, are designed and assessed using these two algorithms. The results show that the element-oriented assessment algorithm significantly underestimates the seismic demand and capacity, especially in the case of the immediate occupancy and collapse prevention limit states. This underestimation can cause a significant drop in the estimated confidence levels.

    ORCID iDs

    Fadaei, Ebrahim, Shakib, Hamzeh and Azarbakht, Alireza ORCID logoORCID: https://orcid.org/0000-0003-3627-652X;