Modeling And Analysis Of Factors Affecting
Seismic Pounding Of Adjacent
Multi-story Buildings
Author(s)
M. Abdel-Mooty, H. Al-Atrpy & M. Ghouneim
Abstract
Pounding or collisions between adjacent buildings occur as a result of building
lateral vibrations during strong ground shaking. Pounding creates additional
forces and causes damage to buildings, finishing at the point of collision. In this
paper, the pounding phenomenon is thoroughly studied where the different
factors affecting pounding and its mitigation are investigated. The formulation of
pounding equations clearly indicates the nonlinear nature of the problem.
Therefore, nonlinear numerical analysis is used for pounding force and
displacement calculation. A detailed parametric study is carried out to investigate
the effect of various parameters on the structural pounding. Of the many factors
influencing the seismic pounding of adjacent buildings, the most important ones
are identified and further studied. Among such factors are the earthquake record,
the separation distance, the structural system in terms of stiffness and mass
distribution, and the building height. One of the variables not thoroughly
investigated in previous research and addressed in this paper is the effect of
structural damage and cracking on pounding. In total a combination of 144 cases
are investigated in this parametric study. Finally, the analysis of the results was
carried out where general trends are identified and the effects of the various
factors are evaluated.
Keywords: pounding, separation distance, seismic gap, nonlinear modeling,
parametric study.
Keywords
pounding, separation distance, seismic gap, nonlinear modeling,
parametric study.
Related Book
Other papers in this volume
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