Periods of Vibration for Displacement-Based Assessment of RC Buildings
ABSTRACT
Simple empirical relationships area available inmany design codes to relate the height of a building to its fundamental period of vibration. These relationships have been realized for force-based design and so produce conservative estimates of period such that the lateral shear force will be conservatively predicted from an accelaration spectrum. Where assessment of a structure is concerned, it is the displacement demand that gives an indication of the damage that can be expected, this displacement would be underestimated with the use of the afermentioned period-height formulae. Furthermore, the period of vibration of interest in assessment is the yield period, which is calculated using the yield stiffness, also often referred to as the cracked or elastic stiffness.
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Equivalent viscous damping equations for direct displacement based design
ABSTRACT
Estimation of the equivalent viscous damping factor (EVDF) is an important step in the methodology of the direct displacement based design. The dynamic response of the substitute structure is characterized by an effective stiffness and an equivalent viscous damping, simplifying considerably the dynamic problem and making this approach very desirable for design porposes. However, error in the estimation of these parameteres characteristics lead to consequent error in the ductility demand of the designed elements.
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Posted by: ypyenpham - 05-27-2010, 08:33 AM - Forum: Archive
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Hi,
You have this document:
Bergado, D.T., Polinar, L.T. and Long P.V. (1995), Prediction and performance on consolidation settlement of AIT full scale test embankment, Compression and Consolidation of Clayey Soils, Balkema, Rotterdam, pp. 665-670
* Author: E.T. Richard Dean
* Hardbound ISBN: 9780727736413
* Ebook ISBN: 9780727740533
* Publication Date: December 2009
With activity in the engineering of offshore structures increasing around the world, Offshore geotechnical engineering offers a timely introduction to many of the core design and assessment skills required of those working in the sector, in accordance with the latest codes and standards.All major aspects of the subject are covered in depth, including offshore site investigation, surveys, soil mechanics, jackups, jacket platforms, gravity platforms, pipelines, artificial islands, wind turbine support structures, and deepwater solutions
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* Editor: S. Kumar Shukla
* Hardbound ISBN: 978-0-7277-3117-3
* Ebook ISBN: 978-0-7277-3783-0
* Publication Date: October 2002
Geosynthetics are being used extensively throughout the world as they offer the most efficient and cost-effective solutions of a myriad of civil engineering problems. If properly protected, geosynthetics have the potential of functioning for hundreds of years. Rational design methods - based on sound concepts and standardized text techniques for detemining the technical properties of geosynthetics - are now available, placing the use of geosynthetics on a firm base.
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Hardcover: 352 pages
Publisher: Thomas Telford Services Ltd (March 2003)
Language: English
# ISBN-10: 0727729489
# ISBN-13: 978-0727729484
A Short Course in Geotechnical Site Investigation" is the third volume in the popular and authoritative "Short course" series. This book focuses on the fundamental principles of geotechnical site investigation - in particular the planning of the investigation. This indispensable book is illustrated throughout with 23 case studies, seven of which are detailed examples of best practice. Some aspects of soil mechanics are explained using "hand written" "Short Course Notes". The classic monograph "Writing Reports" by D. J. Palmer is reproduced, and also included is a plastic-laminated field card giving identification and description of soil and rocks.This book provides: an introduction on how to plan an investigation, with particular reference to spacing of boreholes, procurement, developing the geological model and conceptual design; guidance on how to carry out a desk study and walkover survey, with particular reference to the use of geological maps and air photos; advice on how to identify geotechnical hazards, manage geotechnical risk and compile the Risk Register; a review of key classic and modern laboratory and field tests for parameter determination. "A Short Course in Geotechnical Site Investigation" will familiarise students with the practicalities of geotechnical engineering and refresh the knowledge of practising engineering geologists and civil engineers
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Construction of Fills, 2nd Edition by Edward Monahan
Contains practical and useful information for all those involved in the planning, specifications and execution of earthwork construction. This edition updates material throughout the text and adds coverage of environmental topics. Includes a new section on septic systems along with site investigation and evaluation, design, construction, renovation, repair, maintenance and system management. Features new material on artificial fills and the use of waste substance as fills as well as a discussion of standard and modified proctor densities. Illustrated.
Hardcover: 265 pages
Publisher: Wiley-Interscience; 2 edition (December 15, 1993)
Language: English
ISBN-10: 0471585238
ISBN-13: 978-0471585237
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Hardcover: 184 pages
Publisher: National Information Centre of Earthquake Eng (January 2006)
Language: English
ISBN-10: 0943198046
ISBN-13: 978-0943198040
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