For structural reasons, and due to the human biodynamical sensitivity to angular motion, torsional response is an important factor in building design. A torsional motion in a building results from a possible aerodynamic and/or inertial coupling in various degrees of freedom. If the resultant wind forces do not coincide with the centre of mass at each floor level, an eccentric loading pattern can be expected which is responsible for exciting the torsional mode of vibration. An amplification of the response is …
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