Optimization Of Reinforced Concrete Frame

Optimization design is an up to date measure to seek the most perfect and optimum design proposal, and the mathematical of optimization had application in engineering design. It incorporates the speciality design theory, the optimization methods of mathematics and the computer art, accommodate a scientific design approach and a significant layout strategy for design engineering, and it can heighten design efficiency and advance designing quality.The structure of R.C. frame has the construction cost lowly, the plane arrangement is flexible, and it is advantageous for standardized construction. So it has become the important structural style, moreover it still will maintain the good prospects for development in the future. Therefore, seeking a science reasonable design method to guarantee the structural security and enhance investment benefit is necessary and urgent. Finite element analytic method is to solve structural mechanics and analysis the most advanced and effective method of the problem through the technology of the computer. Combining optimization algorithms and finite element technology to seek optimization theory and method is the research focal point of this text. On the basis of analysis traditional structure optimization method, carrying on the endogenic force analysis using the precision very high finite element method to the structure of R.C. frame, which has guaranteed the foundation data objective accuracy. Through setting up optimization models for mathematics of the goal minimum with weight, we take the frame component length of side as the parameterization design variable, take the displacement and the stress as constraint condition, then carry on the finite element endogenic force analysis and the optimization computation. Finally a example has confirmed that the optimization method is feasible.The research of this text not only can be used in the optimization design of the frame structure, but also, there is certain reference value to the building structure optimization design of other structure forms too. Meanwhile, adopting optimization design still can lighten structure weight, save the project structure cost. Therefore, it has the extremely important practical significance.