EVALUATION OF EXTERNAL WIND PRESSURE COEFFICIENTS FOR THE MAIN WIND FORCE RESISTING SYSTEMS OF LOW-RISE STEEL STRUCTURES BASED ON LOAD EFFECTS

Abstract

The present paper proposes the external wind pressure coefficients for designing the main wind force resisting systems of low-rise gable-roofed steel structures in the framework of gust-effect-factor approach, based on a wind tunnel experiment and a two-dimensional frame analysis. For evaluating the wind pressure coefficients focus is on the bending moments induced in the members as the most important load effect. The equivalent static wind pressure coefficients generating the maximum load effect is evaluated by the LRC method. The gust effect factor considers the resonance magnification factor for the first vibration mode.