Multi-objective Optimization Design Method of FRC Diagonally Reinforced Coupling Beams with Small Span-to-depth Ratio

Abstract

In this paper, the design method of seismic behavior of diagonally reinforced coupling beams with small span-to-depth is studied under the background that the span-to-depth is less than 1.5, exploring the multi-objective optimization of FRC diagonally reinforced coupling beams, obtaining an economical and practical component of coupling beams. Under the premise that the coupling beam meets the requirements of shear bearing capacity, the cost of the project is reduced as much as possible. Or in the certain engineering cost range, the coupling beam gives a full play to its mechanical properties. So, the author took the project cost and the shear capacity as the objective functions, introduced weighted coefficients to construct an evaluation function, and used MATLAB program to solve nonlinear optimization problems, providing a reference for the optimization design of the composite structure components and multi-objective optimization problems.