Aerodynamic Model Tests of Tall Buildings

An integrated design technique of advanced linear-mode-shape method and serviceability drift optimization for tall buildings with lateral–torsional modes

“…Although the HFBB technique has been well developed and continuously improved for over two decades, there are still significant uncertainties in predicting generalised wind forces for tall buildings with nonlinear and/or three-dimensional (3D) mode shapes, as discussed by Boggs and Peterka [1], Yip and Flay [2], Holmes et al [3], Tse et al [4] and other researchers. Advances to ever-taller and more complex high-rise buildings have seen HFBB technique applications well beyond the original HFBB formulation, requiring the development of related analytical techniques to determine accurately dynamic wind-induced forces for design purposes.…”

Wind flow and wind loads on the surface of a towershaped building: Numerical simulations and wind tunnel experiment

“…So that appropriate modifications can be taken to avoid the excessively windy circumstance around the planning buildings [8,9] . The main methods of the wind environment evaluation include field observation, fluid experiment (wind tunnel, water tank and water tunnel experiment) and numerical simulation [10][11][12][13] . The method of calculating flow around blunt body in computational fluid dynamics has been developed rapidly in the latest decade and applied to simulation of flow around the buildings in the atmospheric boundary layer [14,15] .…”

Reducing Uncertainties in Estimation of Wind Effects on Tall Buildings Using Aerodynamic Wind Tunnel Tests

“…However, assuming a constant torsional mode shape is unrealistic. Hence, to consider the effect of non-ideal mode shapes different correction procedures were discussed in several research works (e.g., Boggs and Peterka, 1989;Holmes, 1987;Kareem, 1984;Lam and Li, 2009;Vickery et al, 1985;Zhou et al, 2002). Zhou et al (2002) showed that the significance of non-ideal mode shapes could be negligible for some wind-induced responses such as displacement and base moment but not for other responses such as base shear and acceleration.…”

“…In aerodynamic wind tunnel tests only the building geometry and the wind exposure are modeled and the effects of dynamic properties of the building (mass, stiffness and damping) are considered through post-test analytical procedures (Boggs, 1992;Boggs and Peterka, 1989). The basic principle behind aerodynamic tests is based on avoiding the relative motion between the model building and the wind.…”

“…Boggs and Peterka, 1989;Holmes, 1987;Lam and Li, 2009;. Applying mode shape corrections may not be obvious in some cases such as for buildings with complex geometries and when the effect of higher mode responses may not be negligible (Spence et al, 2008).…”