Cost Optimization Design Method Of Multi-storied Multi-ribbed Slab Structure

The multi-ribbed slab structure is a new, energy-saving and assembled monolithic residential building structure with good seismic performance. The study on the optimization design method of the structure is an important part of the design theory for the structural system. In view of the fact that the study on the optimization design of multi-ribbed slab structure still rest on the member of the structure. Based on previous study results, the cost optimization design method of the multi-storied multi-ribbed slab structure is studied in this paper. The main works can be detailed as following:1,The Principle of optimization design for the multi-storied multi-ribbed slab structure is put forward. Based on the aseismic calculation method of the multi-storied multi-ribbed slab structure, the cost optimization design mathematical model of the structure under given fortification intensity is established, and the methods of partial-optimation and Genetic Algorithm are combined to be used for the calculation of optimization design for the multi-storied multi-ribbed slab structure. In addition, the process of optimization design based on partial-optimation and Genetic Algorithm for the multi-storied multi-ribbed slab structure is given.2,The cost optimization design of the multi-ribbed composite wall, which is the main load-bearing member in the multi-ribbed slab structure, is carried on in the paper: The cost optimization design mathematical model of the multi-ribbed composite wall is established, and the implementation method of the optimization design based on Genetic Algorithm is proposed. At the same time, the formal description based on Genetic Algorithm of the optimization design problem is given. Finally the process of optimization calculation and program implementation method is obtained3,A case of optimization design is given to introduce the process of cost optimization the structure, and the optimization results are compared and analyzed. Moreover, the influencing factors of the optimization results are discussed. Theoretical analysis and calculated results show that the cost optimization design method for the multi-storied multi-ribbed slab structure was found to be reasonable, practicable and have some meaning to the practical engineering.