Artar M.20.04.20192019-04-2020.04.20192019-04-2020161225-4568https://dx.doi.org/10.12989/sem.2016.58.3.597https://hdl.handle.net/20.500.12403/620This paper presents an optimization process using Harmony Search Algorithm for minimum weight of steel space frames under earthquake effects according to Turkish Earthquake Code (2007) specifications. The optimum designs are carried out by selecting suitable sections from a specified list including W profiles taken from American Institute of Steel Construction (AISC). The stress constraints obeying AISC- Load and Resistance Factor Design (LRFD) specifications, lateral displacement constraints and geometric constraints are considered in the optimum designs. A computer program is coded in MATLAB for the purpose to incorporate with SAP2000 OAPI (Open Application Programming Interface) to perform structural analysis of the frames under earthquake loads. Three different steel space frames are carried out for four different seismic earthquake zones defined in Turkish Earthquake Code (2007). Results obtained from the examples show the applicability and robustness of the method. Copyright © 2016 Techno-Press, Ltd.eninfo:eu-repo/semantics/closedAccessEarthquake effectHarmony search algorithmOptimum designSteel space framesAlgorithmsApplication programming interfaces (API)Application programsComputer programmingDesignEarthquake effectsGeophysicsLearning algorithmsMATLABOptimizationSpecificationsStructural framesAmerican institute of steel constructionsGeometric constraintHarmony search algorithmsLateral displacementsLoad and resistance factor design specificationsOpen application programming interfaceOptimum designsSteel space frameEarthquakesEarthquake effectHarmony search algorithmOptimum designSteel space framesAlgorithmsApplication programming interfaces (API)Application programsComputer programmingDesignEarthquake effectsGeophysicsLearning algorithmsMATLABOptimizationSpecificationsStructural framesAmerican institute of steel constructionsGeometric constraintHarmony search algorithmsLateral displacementsLoad and resistance factor design specificationsOpen application programming interfaceOptimum designsSteel space frameEarthquakesOptimum design of steel space frames under earthquake effect using harmony searchArticle58359761210.12989/sem.2016.58.3.5972-s2.0-84973468850Q2WOS:000376792600010Q3