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The aim of this study is to find the cost design of RC tension with varying conditions using the Artificial Neural Network. Design constraints were used to cover all reliable design parameters, such as limiting cross sectional dimensions and; their reinforcement ratio and even the beahviour of optimally designed sections. The design of the RC tension members were made using Indian and European standard specifications which were discussed. The designed tension members according to both codes satisfy the strength and serviceability criteria. While no literature is available on the optimal design of RC tension members, the cross-sectional dimensions of the tension membersfor different grades of concrete and steel, and area of formwork are considered as the variables in the present optimum design model. A design example is explained and the results are presented. It is concluded that the proposed optimum design model yields rational, reliable, and practical designs.

Design of portal frames were carried out for different grades of steel with a well-defined objective function framed in order to minimize the cost of construction of reinfofced concrete portal frames for different spans using direct stiffness method. The design variables that are considered are the volume of steel used for reinforcement, volume of concrete for sectional members that is got from the width, depth of the required section. The constrains for the design of beams were done according to the Indian codal provisions. Separate coding was written in MATLAB to determine the optimal design of beams. The optimal design results obtained had a minimum usage of concrete and steel when compared to the normal one with a variation of 5% for the beam and 3% for the column. The reduction in cost is due to reduction in the cross-section as a result of the optimization technique. Nearly 100 designed samples using different cross-section areas were carried out and the final conclusions were derived and found to provide optimal values to certain extent which would be useful for the design engineers.