Treffer: COST OPTIMIZATION OF REINFORCED CONCRETE STRUCTURE ELEMENTS.

Now, in current practice, the whole world is in the race of looking forward to earn maximum profit. A structural engineer's goal is to prepare an ideal cost effective solution for the design of structure for any construction project. In this paper, the present work deals with the aim of achieving the optimal and ideal design of reinforced concrete structures, reducing size and reinforcement for beam members and column members in multi - bay and multi - storey structures. Generally, it is a practice to optimize cost by trial and error method, which is used in a number of software likes STAAD PRO, ETABS, STRUDS, etc. But this method is quite complex and has less accuracy thus there is a need to adopt one proper optimization technique which enables engineer to find and to prepare the ideal design for the structure which gives more accuracy. So, in this paper, for cost optimization of Reinforced Concrete (RC) framed structure, MINLP (Multi-Integer Non-Linear Programming) technique is adopted. Without changing the functional criteria of beams and columns as per provisions given in IS456-2000, the structure is designed and assuring economically safety. Programming of the design of structural elements beam and column has been done using MATLAB program. At the end of the study, the results of the optimized model using MINLP technique and manually optimized method are compared. This optimization task reduces 24.76% of the total approximate cost in beams and 13.79% in columns. [ABSTRACT FROM AUTHOR]

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