Performance-based optimization considering both structural and nonstructural components
Abstract
Development of performance-based design (PBD) methodologies for buildings and a better understanding of the performance and damage to nonstructural components during ground motion events give rise to design problems that involve structural and nonstructural component performance. The current research effort is geared toward development of an automated PBD environment to optimize structural system performance. FEMA-350 and HAZUS procedures are used to evaluate confidence levels associated with the probability of a structure not meeting targeted performance levels. A genetic algorithm (GA) is used to solve this complex optimization problem where confidence levels are incorporated into a GA fitness function along with initial construction cost in a series of optimal design scenarios. Inelastic time-history analysis is used to evaluate the designs under different levels of hazard during execution of the evolutionary algorithm. Different optimization formulations are studied in order to explore the symbiotic relationship between seismic hazard magnitude, initial construction cost, and confidence levels for damage exceedance for structural and nonstructural components. © 2007, Earthquake Engineering Research Institute.
Publication Title
Earthquake Spectra
Recommended Citation
Rojas, H., Pezeshk, S., & Foley, C. (2007). Performance-based optimization considering both structural and nonstructural components. Earthquake Spectra, 23 (3), 685-709. https://doi.org/10.1193/1.2754002
