ASSESSMENT OF THE INFLUENCE OF BUILDING FACADE FACETING ON THE ACCURACY OF WIND LOAD SIMULATION

Olga Poddaeva, Oleg Kudinov, Kamil Mustafin

Abstract


Introduction: The influence of the level of building facade detail (protruding and recessed balconies, fins, and other facade elements) — referred to as facade faceting — on the results of wind load simulations has been examined in various studies. It has been established that a higher level of facade faceting in models improves the consistency of computational fluid dynamics (CFD) results with results of wind tunnel experiments. However, in order to simplify calculations, under certain conditions, some details may be neglected. Nevertheless, clear recommendations regarding the degree to which such simplifications affect the final accuracy of simulation are rarely found. Purpose of the study: In this study, the influence of facade faceting detail on the distribution of wind flows around the investigated object was assessed using computational and experimental modeling. Methods: Physical testing of scale models of unique buildings and structures in a wind tunnel, as well as numerical simulation of wind effects, were carried out. Results: The study demonstrated a significant impact of facade faceting detail on the distribution of wind loads around the investigated building model. It is recommended to design facade structures with consideration of the turbulence effects of wind flow associated with their actual geometry. At the same time, the design of load-bearing structures should account for the maximum possible wind loads without incorporating facade faceting detailing.

Keywords


high-rise buildings, wind simulation, CFD, wind tunnel, facade detailing, faceting

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References


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