Abstract: Reinforced concrete frame structure is widely used in various buildings. In order to make the structure safe and economic, we study the optimization of space reinforced concrete frame structure based on the current optimization theory, and developed a program using the finite element method, named 3DFOA（3-dimensioned RC frame structure optimization analysis）. The program increases efficiency, and has good optimization performance in terms of material usage and construction cost.
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Key words: finite element programming, optimization design, frame structure