DESIGN OPTIMIZATION OF RC FRAMES UNDER EARTHQUAKE LOADS

This paper deals with the optimization of reinforced concrete (RC) structures under earthquake loads by introducing a simple methodology. One of the most important problems in the design of RC structures is the existing of various design scenarios that all of them satisfy design constraints. Despite of the steel structures, a large number of design candidates due to a large number of design variables can be utilized. Doubtless, the economical and practical aspects are two effective parameters on accepting a design candidate. As such, in this paper the conventional design process that uses a trial and error process is replaced with an automated process using optimization technique. Also, the cost of construction is selected as an objective function in the automated process. A real valued model of particle swarm optimization (PSO) algorithm is utilized to perform the optimization process. Design constraints conform to the ACI318-08 code and standard 2800-code recommendations. Three ground motion records modified based on Iranian Design Spectrum is considered as earthquake excitations. Moreover, to reveal the effectiveness and robustness of the presented methodology, for example, a three-bay eighteen-story RC frame is optimized against the combination of gravity and earthquake loads. The entire process is summarized in a computer programming using a link between MATLAB platform and OpenSEES as open source object-oriented software.

[1]  Ali Kaveh,et al.  PERFORMANCE BASED OPTIMAL SEISMIC DESIGN OF RC SHEAR WALLS INCORPORATING SOIL-STRUCTURE INTERACTION USING CSS ALGORITHM , 2012 .

[2]  Garret N. Vanderplaats,et al.  Numerical Optimization Techniques for Engineering Design: With Applications , 1984 .

[3]  S. Gholizadeh,et al.  OPTIMAL DESIGN OF STRUCTURES SUBJECTED TO TIME HISTORY LOADING BY SWARM INTELLIGENCE AND AN ADVANCED METAMODEL , 2009 .

[4]  Andries Petrus Engelbrecht,et al.  Using neighbourhoods with the guaranteed convergence PSO , 2003, Proceedings of the 2003 IEEE Swarm Intelligence Symposium. SIS'03 (Cat. No.03EX706).

[5]  Chin-Hyung Lee,et al.  Flexural Design of Reinforced Concrete Frames by Genetic Algorithm , 2003 .

[6]  Yue Shi,et al.  A modified particle swarm optimizer , 1998, 1998 IEEE International Conference on Evolutionary Computation Proceedings. IEEE World Congress on Computational Intelligence (Cat. No.98TH8360).

[7]  Mauro Birattari,et al.  Swarm Intelligence , 2012, Lecture Notes in Computer Science.

[8]  Ali Kaveh,et al.  A comparative study of two metaheuristic algorithms for optimum design of reinforced concrete frames , 2011 .

[9]  Donald E. Grierson,et al.  Design optimization of 3D reinforced concrete structures , 1996 .

[10]  Richard J. Balling,et al.  Optimization of Reinforced Concrete Frames , 1997 .

[11]  S. Rajeev,et al.  GENETIC ALGORITHM-BASED METHODOLOGY FOR DESIGN OPTIMIZATION OF REINFORCED CONCRETE FRAMES , 1998 .

[12]  Ali Kaveh,et al.  Optimal design of reinforced concrete frames Using big bang-big crunch algorithm , 2012 .

[13]  Hyo-Gyoung Kwak,et al.  Optimum design of reinforced concrete plane frames based on predetermined section database , 2008, Comput. Aided Des..

[14]  Mohsen Khatibinia,et al.  PREDICTION OF FAILURE PROBABILITY FOR SOILSTRUCTURE INTERACTION SYSTEM USING MODIFIED ANFIS BY HYBRID OF FCM-FPSO , 2012 .

[15]  Singiresu S. Rao,et al.  Optimization Theory and Applications , 1980, IEEE Transactions on Systems, Man, and Cybernetics.

[16]  Panos D. Kiousis,et al.  Design optimization of reinforced concrete structures , 2006 .

[17]  Donald E. Grierson,et al.  Computer‐Automated Design of Reinforced Concrete Frameworks , 1993 .

[18]  Jack P. Moehle,et al.  "BUILDING CODE REQUIREMENTS FOR STRUCTURAL CONCRETE (ACI 318-11) AND COMMENTARY" , 2011 .

[19]  Mohsen Khatibinia,et al.  Optimal design of structures for earthquake loads by a hybrid RBF-BPSO method , 2008 .

[20]  D. E. Goldberg,et al.  Genetic Algorithms in Search , 1989 .

[21]  Shahram Pezeshk,et al.  Flexural Design of Reinforced Concrete Frames Using a Genetic Algorithm , 2003 .

[22]  David Z. Yankelevsky,et al.  Optimization problem solution in reliability analysis of reinforced concrete structures , 1996 .

[23]  Mohammad J. Fadaee,et al.  Design optimization of 3D reinforced concrete structures having shear walls , 2005, Engineering with Computers.

[24]  Lip H. Teh,et al.  Heuristic Approach for Optimum Cost and Layout Design of 3D Reinforced Concrete Frames , 2012 .

[25]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .