Parallel Fuzzy Genetic Algorithms for Cost Optimization of Large Steel Structures

2006 ◽  
pp. 133-164
Keyword(s):  
Genetic Algorithms ◽  
Cost Optimization ◽  
Steel Structures ◽  
Large Steel ◽  
Fuzzy Genetic

Design Optimization of a Special Class of Steel Structures via Genetic Algorithms and Stochastic Sampling

2009 ◽  
Author(s):  
Karim Hamza ◽  
Ashraf O. Nassef ◽  
Mohammed Shalaby
Keyword(s):  
Genetic Algorithms ◽  
Design Optimization ◽  
Special Class ◽  
Steel Structures ◽  
Sampling Technique ◽  
Manufacturing Cost ◽  
Stochastic Sampling ◽  
Optimization Task ◽  
Consistent Performance ◽  
Continuous And Discrete Variables

This paper addresses the design optimization of a special class of steel structures, which is clear-span building built up via off-shelf standard steel-sections. The problem is of particular importance in small to medium span buildings due to an attractive opportunity for reduction of the manufacturing cost compared to trusses and custom-built beams. The problem is also difficult from an optimization perspective as it exhibits both continuous and discrete variables, as well as discontinuities and flat regions in the topology of the objective function. Genetic algorithms (GA) and a special stochastic sampling technique are considered for the problem, as well as a mixed GA and stochastic sampling approach. The stochastic sampling is guided via heuristic rules based on knowledge specific to the problem, and is thus perceived well suited to the optimization task. While all the tested algorithms produced satisfactory results, the mixed approach seemed to yield the most consistent performance.

Performance-based multi-objective optimization of large steel structures

2011 ◽  
Vol 223 (2) ◽  
pp. 355-369 ◽  
Author(s):  
Ali Kaveh ◽  
Karim Laknejadi ◽  
Babak Alinejad
Keyword(s):  
Steel Structures ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Large Steel
Sign in / Sign up

Export Citation Format

Share Document