What factors determine the wind load resistance of curtain wall systems in high-rise buildings in Vietnam?

Wind load resistance for curtain wall systems is a structural design discipline driven by local wind codes, building height, façade geometry and attachment detailing — considerations critical for Vietnamese coastal cities like Da Nang, Hai Phong, or Ho Chi Minh City. Mullion and transom section modulus, material yield strength, and moment of inertia determine how much lateral pressure a frame can resist without excessive deflection. Designers use local meteorological data and code-prescribed gust factors to size members and set deflection limits (commonly expressed as span/deflection ratios) to prevent glass breakage and prevent leakages. Anchorage strategy — including bracket spacing, embedment depth into the slab or structural frame, and the use of sliding anchors to accommodate thermal and seismic movement — dictates load transfer paths; robust anchorage is a must in typhoon-exposed coastal projects and in high-wind Gulf towers in Dubai or Jeddah. Curtain walls are specified with design wind pressures and tested under cyclic loading to verify gasket compression and water penetration resistance at service pressures. Corner geometry, parapet continuity, and setbacks affect local pressure coefficients; façades with large cantilevers or irregular shapes require local reinforcement and finite-element modeling. For projects in Vietnam and the Middle East, collaboration between structural engineers and façade specialists early in design ensures optimal mullion spacing, curtain wall module sizing, and backing structure so that wind-induced vibrations, deflection and envelope integrity meet performance expectations across extreme weather scenarios.