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 (https://doi.org/10.1007/s40996-020-00379-9)

[thumbnail of Fadaei-etal-IJST-2020-Structural-global-performance-assessment-versus-individual-element-oriented]
Preview
 Text. Filename: Fadaei_etal_IJST_2020_Structural_global_performance_assessment_versus_individual_element_oriented.pdf
Accepted Author Manuscript
Download (376kB)| Preview

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.

CORE (COnnecting REpositories)