PRANCE metalwork is a leading manufacturer of metal ceiling and facade systems.
How does a glass curtain wall system comply with international wind and seismic load design standards?
Meeting wind and seismic load requirements for a glass curtain wall system starts with structural design of the metal framing: aluminum mullions, transoms, anchors, and node connections must be engineered to transfer loads to the building structure without overstressing glass or fasteners. In the Middle East and Central Asia (Dubai, Doha, Riyadh, Almaty, Tashkent), designers commonly reference Eurocode EN 1991/1998, ASCE 7, and local codes; many projects require additional regional customization for gust factors and seismic zones.
A compliant approach includes structural analysis (linear and non-linear FEA) of unitized panels or stick-built systems to evaluate deflection limits, inter-story drift accommodation, and anchor pull-out capacities. For wind, serviceability (deflection limits, v ≤ L/180–L/240 depending on glass type) and strength limit states must be respected. For seismic regions, design must allow relative movement between the curtain wall and primary structure via slotted anchors, flexible gaskets, and expansion joints, while preserving weatherproofing.
Testing and verification are essential: air/water infiltration, static and cyclic wind load testing per ASTM E330 and E330/E72, and seismic cyclic testing where applicable. Specify tempered or laminated safety glass, stainless-steel anchors, and fatigue-resistant fixings for high-rise, high-wind installations. Ensure that curtain wall shop drawings include anchor schedules, load paths, and a testing plan; coordinate mock-up testing in situ where possible.
Finally, install quality control measures: torque-controlled fasteners, pre-tensioned anchors, and documented inspections during erection. For cross-border projects spanning the Gulf and Central Asia, carry out local code reviews and, if necessary, independent third-party structural peer review to certify compliance.