| dc.description.abstract | pounding of adjacent structures under lateral loads (e.g., earthquake and wind) due to proximity
has been a major cause of building damage in the past. the effects of pounding can be mitigated
by providing a suitable gap distance between structures, adequate shock absorbers or by designing
for the additional pounding loads. however, if not properly considered, these abnormal
supplementary loads can damage the structures, notably when the attentive structure experiences
a dynamic vibration in an out-of-phase order. multiple pounding incidents have been reported to
occur under lateral loads, which resulted in local and global damages. with the new generation of
tall buildings, which are becoming taller and more flexible, these structures are becoming more
susceptible to wind-induced pounding due to the large sway developed during high wind
problematic affairs. the study first investigates wind-induced pounding forces of two equal height
structures with similar dynamic properties. this will first rely on using large eddy simulation
(les) modelling for the wind load evaluations. then, the wind loads will be extracted from the
les models and applied to a finite element method (fem) analysis software to determine the
examined structures’ deflections, minimum separation gap distance, and pounding forces. to
correlate a reasonable mathematical formula, training data values must be prepared. this will
include varying values of the structure’s heights, applied wind velocities, flexure of the structure,
and the separation distance between the examined buildings. lastly, a genetic algorithm (ga) is
then utilized with varying parameters of the tall structures to correlate the minimum separation
gap distance and maximum pounding force that can be performed. to achieve a more accurate
mapping for the trained database, the more complex the mathematical formula will be developed. | en_us |
