The Optimization Design Of Prestressed Concrete Slab-Column Structure

Structural optimiziation design is a modem design approach, which applied optimization theory to engineering structural design, to find the most appropriate design in many feasible designment. It consists of professional theory of structure design, mathematical programming and computer technology,which a scientifical design approach was adopted to shorten the design cycle and reduce human, material and financial investment, and create huge economical and social benefits.Prestressed concrete slab-column structure has become the most important structural form in China, because of its low costs, flexible layout and ease of standardized construction, and will maintain a good development prospects. Therefore, the optimization design of prestressed concrete slab-column structure has become an urgent need for engineers. There are a great of studies and researchs in this aera home and abroad, and having got a lot of useful conclusions. Recently the situation is tended to how to get the theory to the application.To this end, in summarizing the results of previous studies, methods and weak points, this paper establ ished whole parameters full constraints optimization design models. Then according to the mathematical models, selected a suitable stable and highly efficient sequential quadratic programming for optimization calculation in many optimization algorithm, it also introduced details of the sequential quadratic programming, numerical algorithms and mathematical reasoning process as simplely as possible. Using clear ideas and images easy to understand and grasp. Ultimately established a practical, user-friendly GUI Optimization System of reinforced concrete framework design, which is fit to the Code for design of concrete structures and Code for seismic design of buildings. The programme can be connected with various structure design software to carry on parameters optimization. Finally,an example was given to verify the feasibility and numerical stability of procedures, and draw some interesting conclusions results ofthe example analysis.