Sensitivity Analysis in Advanced Building Industry

AbstractThe paper deals with the Sobol's sensitivity analysis of load–carrying capacity both of building structural members and steel plane frames. The sensitivity analysis was used to identify those initial imperfections that significantly influenced the load–carrying capacity (model output). Whereas higher order sensitivity indices are practically negligible for separate members, the higher order interactions can play, for a system composed of those members, an important role. With greater sophistication of the system, also the demanding character of numerical calculation increases. The Latin Hypercube Sampling method was utilized for the analysis. For a separate member, the computational model was formed by analytical solution, for the calculation of the load–carrying capacity of steel plane frame, the geometrical nonlinear finite element solution providing numerical result per run was employed