| Title |
The Development of Optimal Algorithm for R/C Frames Subjected to Static and Dynamic Behaviors |
| Abstract |
The aim of this paper is to deveolp an algorithm of the structural analysis and an optimal limit state design for reinforced concrete frames subjected to static and dynamic loads.Each member of reinforced concrete frames is made up of two elements. The stiffness and consistent mass matrix of 3 DOF in the node of each element includes the axial, shear and flexural effects. The structures are analyzed by the finite element method. At the design section, the domain length of steel is calculated with consideration of the bending moment of static and dynamic loads with respect to various loading conditions by a limit state design.The optimization algorithm algorithm was developed by SUMT for nonlinear strutural optimization problems. The optimum design values are selected within the feasible region in the design space defined by the BS 8110 according to the concept of the serviceability limit state and the ultimate limit state. The objective functions are formulated by the cost of materials, steel and concrete.The objective function and each of the constraints are derived in terms of design variables which include the effective depth, width, compression and tension steel area, shear steel area and moment redistribution coefficient which is analytical variables. |