Abstract
The seismic response of a structure which, in addition to earthquake loading, is subjected to the impact force resulting from pounding by an adjacent building, is determined. At first, simple models are used to examine the characteristics of the pounding phenomenon. The pounding structure is modelled as a nonlinear 1-DOF system and the neighbouring building is represented by an impact-spring-dashpot mechanism. Parametric studies, varying the structural parameters, are performed both for steady-state and transient excitions. Finally, the pounding of a typical reactor building by an adjacent auxialiary building during an earthquake is analysed using a simple 2-DOF system and a very detailed dynamic model. The stresses and in-structure response spectra are compared to those for the case in which no pounding occurs, as well as to the results obtained for aircraft impact. Different types of running devices which reduce the response of pounding are examined.
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