Publication Date:
2012-06-30
Description:
This paper investigates the problem of sizing the width of tall free-standing columns with a given height which are intended to rock, yet shall remain stable during the maximum expected earthquake shaking. The motivation for this study is the emerging seismic design concept of allowing tall rigid structures to uplift and rock in order to limit base moments and shears. The paper first discusses the mathematical characterization of pulse-like ground motions and the dimensionless products that govern the dynamics of the rocking response of a free-standing block and subsequently, using basic principles of dynamics, derives a closed-form expression that offers the minimum design slenderness that is sufficient for a free-standing column with a given size to survive a pulse-like motion with known acceleration amplitude and duration. Content Type Journal Article Category Special Issue Pages 1-15 DOI 10.1007/s00419-012-0681-x Authors Nicos Makris, Department of Civil Engineering, University of Patras, 26500 Patras, Greece Michalis F. Vassiliou, Department of Civil Engineering, University of Patras, 26500 Patras, Greece Journal Archive of Applied Mechanics Online ISSN 1432-0681 Print ISSN 0939-1533
Print ISSN:
0939-1533
Electronic ISSN:
1432-0681
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
