System reliability-based design of steel-concrete composite frames with CFST columns and composite beams

This paper presents an effective reliability analysis procedure and proposes the system resistance factors for design of steel-concrete composite frames that comprise concrete-filled steel tubular (CFST) columns beams. Advanced is employed to predict ultimate using fibre beam-column elements in OpenSees. The obtained predictions load-carrying capacity compare well with experimental results mean value test-to-prediction ratio around 1.027 coefficient variation ( CoV ) 8.4%. Both Monte Carlo (MC) subset simulations are used analysis. uncertainties model error, geometric material properties, external loads included index. Five different frame configurations considered. show both US AS codes quite similar. In case gravity load, factor from 0.78 0.90, whilst this combined wind load 0.8 0.95. suggested herein become valuable reference information frames. • integrated OpenSees All geometry, material, loading predicted capacities compared 38 tests on A comprehensive parametric study conducted propose