Effect of non-proportional damping on seismic isolation
Author: Yongfeng Du,Hui Li,Billie F. Spencer Jr | Size: 0.66 MB | Format:PDF | Quality:Original preprint | Publisher: Journal of Structural Control Volume 9, Issue 3 | Year: December 2002 | pages: 205–236 | ISBN: 1545-2263
This paper presents several new methods for estimating the maximum seismic responses of non-proportionally damped two-degrees of freedom isolation systems. For completeness of the discussion, the formulation, analysis methods, and results are first compared for proportionally and non-proportionally damped structural systems. The effect of non-proportional damping on the properties of eigenvalues and eigenvectors of a base-isolated structure is presented. Several approaches to estimate the maximum response of a two-degrees of freedom, non-proportionally damped isolation system are developed, and numerical comparison is made through two examples. Numerical results show that the methods presented in this paper better reflect the optimum isolation damping that results in the minimum superstructure shear force response.
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Dear All,
i really need for my thesis the following paper:
Effect of non-proportional damping on seismic isolation
Authors:Yongfeng Du,Hui Li,Billie F. Spencer Jr
Journal of Structural Control
Volume 9, Issue 3, pages 205–236, December 2002
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In the past five years, the globalised trend of interior design has seemingly been led by the five cities-renowned as the cities of design, including Tokyo, Paris, Milan, London and New York. At the same time, it has become a common realization of designers around the world to explore and employ the local features for each project with the advancement of economy and culture.
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Rock Slopes - Design, Excavation, Stabilization (FHWA-TS-89-045)
Author: Evert Hoek; John Bray | Size: 19.1 MB | Format:PDF | Quality:Unspecified | Publisher: U.S. Dept. of Transportation, Federal Highway Administration | Year: September 1989
This manual is concerned with the stability of rock slopes, with methods for assessing this stability and with techniques for improving the stability of slopes which are potentially hazardous.
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Slope Stabilization and Erosion Control: A Bioengineering Approach
Author: R. Morgan | Size: 6.5 MB | Format:PDF | Quality:Unspecified | Publisher: Taylor & Francis | Year: 1994 | pages: 274 | ISBN: 0419156305, 9780419156307
This book is an up-to-date review of research and practice on the use of vegetation for slope stabilization and control of surface erosion caused by water and wind. From a basic understanding of the principles and practices of vegetation growth and establishment, it describes how vegetation can be treated as an engineering material and used to solve erosion and slope stability problems.
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ISBN 978-1-880653-53−1 (Vols. 1−4 Full Proceedings Set)
ISSN 1098-6189 (Vols. 1−4 Full Proceedings Set)
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Hi
I Need This:
Full title: Seismic behavior of concentrically braced steel frames
Author(s): Khatib, Ibrahim F.; Mahin, Stephen A.; Pister, Karl S.
Publisher: Earthquake Engineering Research Center, University of California, Berkeley
URL:
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Posted by: fuchiguis - 08-29-2012, 01:59 AM - Forum: Archive
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Moving Freight with Better Trucks: Improving Safety, Productivity and Sustainability
OECD / ITF | 19 Apr 2011 | ISBN: 9282102930 | 361 pages | PDF | 4 MB
The purpose of this report is to identify potential improvements in terms of more effective safety and environmental regulation for trucks, backed by better systems of enforcement, and to identify opportunities for greater efficiency and higher productivity.
The report is based on a review of literature, consultation among stakeholders, and research and analysis from working group members. It also presents the results of a comprehensive benchmarking study of 39 truck configurations in operation around the world – from typical workhorse vehicles to very high capacity vehicles – and assesses their performance in terms of dynamic stability, productivity and impact on the infrastructure.
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