Design Optimisation for Cable Dome Structures Based on Progressive Collapse Resistance

This study proposed a framework of optimal design for flexible cable dome structures based on progressive collapse resistance. First, quantitative evaluation method nonlinear robustness control theory to reflect the structural resistance was proposed. Second, an actual engineering structure used as case evaluate effects parameters robustness. Finally, genetic algorithm optimisation further optimise element cross-section and shape obtain combined rate. The results indicated that increasing cross-sectional area, decreasing span, rise-to-span ratio effectively improved also through cross-sections by sensitive those insensitive In this study, rate 38.27%, which not only greater than individual rates 11.2% area 22.5% but sum these two rates.