Alper Akın and İbrahim Aydoğdu
Optimum Design of Steel Space Frames by Hybrid TeachingLearning Based Optimization and Harmony Search Algorithms
1367 - 1374
2015
9
7
International Journal of Structural and Construction Engineering
https://publications.waset.org/pdf/10002405
https://publications.waset.org/vol/103
World Academy of Science, Engineering and Technology
This study presents a hybrid metaheuristic algorithm
to obtain optimum designs for steel space buildings. The optimum
design problem of threedimensional steel frames is mathematically
formulated according to provisions of LRFDAISC (Load and
Resistance factor design of American Institute of Steel Construction).
Design constraints such as the strength requirements of structural
members, the displacement limitations, the interstory drift and the
other structural constraints are derived from LRFDAISC
specification. In this study, a hybrid algorithm by using teachinglearning
based optimization (TLBO) and harmony search (HS)
algorithms is employed to solve the stated optimum design problem.
These algorithms are two of the recent additions to metaheuristic
techniques of numerical optimization and have been an efficient tool
for solving discrete programming problems. Using these two
algorithms in collaboration creates a more powerful tool and
mitigates each other’s weaknesses. To demonstrate the powerful
performance of presented hybrid algorithm, the optimum design of a
large scale steel building is presented and the results are compared to
the previously obtained results available in the literature.
Open Science Index 103, 2015