Exploratory analyses and modelling of parameters influencing occupant behaviour due to low-frequency random building motion

The surge in population and the diversification of global economic and financial influences has generated unprecedented demands for office and residential high-rise developments in the past decade. The dynamic responses of wind-sensitive buildings inevitably challenge the understanding of subjective human response to building motion. Significant building sway during strong winds, typhoons (or hurricanes) and monsoons may potentially have an adverse affect on the well-being and comfort of the occupants who live and/or work within these skyscrapers. Some building occupants react by feeling unwell (suffering seasickness-like symptoms), some may react with fear (leaving them with a disconcerting feeling about the structural integrity of the building), while the equanimity of others may be adversely affected. This paper summarises the development of prediction equations using logistic regression techniques, based upon exploratory analyses of factors, including cultural influences, as well as empirical results from two motion simulator experiments, with the aims of predicting the possible behaviour of building occupants.

► Two wind-induced building motion simulator experiments were conducted.
► The aims were to predict the possible behaviour of building occupants.
► Using logistic regression techniques, prediction equations were developed.
► Test subjects felt greater discomfort with increasing frequency and acceleration.
► Societal influences may play a role in defining acceptability.