DISCUSSION OF DESIGN WIND PRESSURE COEFFICIENTS FOR THE MAIN WIND FORCE RESISTING SYSTEMS OF GABLE-ROOFED LOW-RISE STEEL BUILDINGS BASED ON LOAD EFFECTS

The present paper discusses the wind pressure coefficients for the main wind force resisting systems of low-rise gable-roofed steel buildings, based on a wind tunnel experiment and a two-dimensional frame analysis. Focus is on the bending moments involved in the members as the load effect. The most critical condition occurs on the windward frame in a diagonal wind. The largest bending moment was compared with that predicted from the wind pressure coefficients specified in the Japanese building standards. Finally, more reasonable wind pressure coefficients for designing these structures are proposed based on the LRC method.