Amin ebrahimi - M.Sc. Student Of Structural Engineer, Department of Civil Engineering, Islamic Azad University, Zahedan Branch, Zahedan, Iran
ali ghods - Director of Research, Islamic Azad University, Zahedan Branch, Zahedan, Iran
elias sohrabi - M.Sc. Student Of Structural Engineer, Department of Civil Engineering, Islamic Azad University, Zahedan Branch, Zahedan, Iran
saeid ghazanfari pour - M.Sc. Student Of Structural Engineer, Department of Civil Engineering, Islamic Azad University, Zahedan Branch, Zahedan, Iran

In these years optimization of steel building structures against to earthquake is one of very important problem in civil and structure engineering. Many scientists worked to improve this problem by some heuristic and Meta-heuristic algorithms, such as tabu search, genetic algorithm, and etc. in this research we used a robust parallel simulated annealing algorithm. Parallel Simulated annealing (SA) has been considered a good tool for complex nonlinear optimization problems. The technique has been widely applied to a variety of problems. Many numerical examples were implemented and the results show the efficiency of the proposed algorithm.

Heuristic, PSA, steel building structures, earthquake