Research On Reinforced Concrete Frame-shear Wall Structure Optimization Design

The optimum structural design is a common focus on engineering and academiccircles at home and abroad in recent years, it combines mathematics, mechanics andcomputer technology into a whole, making structure design toward a more economical,safe and reasonable direction. Because of its low cost, reasonable mechanicalperformance, easy to be standardized constructed in today’s construction works, theframe-shear wall structure is widely applied, so the optimization of the structure isnecessary. This problem has caused the attention of many structure designers.A certain nine layers residential building with reinforced concrete frame-shearframe structure in Handan is taken as an example, the constant load, live load andearthquake function of the actual engineering situation is considered, then PKPM isused for the traditional structure design, and then the related parameters from SATWEcomputing results is extracted, such as axial compression ratio, period ratio,displacement ratio, shear weight ratio, the ratio of rigidity-to-gravity, stiffness ratio anddisplacement between layers, etc., and then compared to the current designspecification to verify the rationality of the parameters. Based on the designedstructure, finite element software ANSYS is used for numerical simulation, with thebeam and column section size and the thickness of the shear wall as design variables,with the structure bearing capacity, interlayer displacement angle as constraintconditions, and under the bi-directional seismic action conditions, the minimumconsumption of the total building materials is taken as optimized target. Through thestatic analysis, seismic response spectrum analysis and optimization analysis, the totalsteel decreases by6.68%, the concrete amount decreased by7.26%after optimization.A new design model is established by PKPM software with the optimal section size,and the various parameters is able to meet the requirements, at the same time thisoptimization scheme is economic.The numerical analysis model based on the engineering examples is fullycompatible with the related structural design specification requirements. The analysisand optimization method for the model can be applied to the structure design, andprovide some reference for the optimization of reinforced concrete structures and otherrelated structures.