Study on Numerical Simulation of Wind-induced Wind Pressure on Long-span Membrane Roofs

Wind load is a significant factor for determining snow load distribution on building structures.Based on snow drifting theory,the snow load distribution on long-span membrane structures caused by wind load is studied numerically by CFD technique.Snow drifting and wind-induced snow pressure of typical shape membrane structures are calculated under different wind directions.Snow pressure distribution principles of membrane structures are summarized.The results show that wind load causes snow redistribution on the membrane roof surface.The study produces some valuable references of wind-snow design of long-span membrane roof design in practical engineering.