The Effects of Aerodynamic Damping on Cable-Net Glass Walls

Cable-net glass walls are light-weight, material efficient and transparent facades. With increasing frequency, facades are required to be designed for blast scenarios. There are many methods for blast analysis of structures, but a common approach is to simplify blast loading either as a pressure or as an impulse applied to the structure. This does not consider the effect that aerodynamic damping, the energy dissipation in the surrounding air, has on a structure. While aerodynamic damping is negligible for more rigid steel and concrete structures, it is applicable for the relatively high flexibility of cable-net glass facades. Structural models are made which examine a cable-net glass façade under blast loading, incorporating fluid-structure interaction.