Mechanistic Model For Lead Rubber Bearings
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Author | : Dipesh Lalwani |
Publisher | : |
Total Pages | : |
Release | : 2017 |
Genre | : |
ISBN | : |
Download Mechanistic Model for Lead Rubber Bearings Book in PDF, Epub and Kindle
Seismic isolation is a technique used to shift the fundamental period of a structure to a long range period which reduces the forces a structure attracts during a seismic event. Two, widely used bearings in seismic base isolation of structures are elastomeric and lead rubber bearings. A typical elastomeric bearing consists of a number of layers of rubber alternated with steel shims bonded between two rubber layers. The addition of a lead core inserted in a central mandrel hole results in a lead rubber bearing (LRB). The lead enhances the bearings energy dissipating in an earthquake event. When elastomeric or LRBs are simultaneously subjected to vertical compressive load and increasing lateral displacement, the shear force equilibrium path can exhibit a critical point, beyond which the bearing exhibits negative stiffness. Semi-empirical models to simulate this behavior for elastomeric and LRB have been developed in the past. These models rely on experimentally calibrated parameters, making them impractical for design. Recently, a particular mechanics based model, developed for an elastomeric bearing only, approaches the modelling using vertical springs and a simple bi-linear constitutive relationship to represent the rotational behavior of an elastomeric bearing. Overarching goal of the present study is to build on the mechanics based elastomeric model to develop a LRB model. The elastomeric model is modified to include hysteretic behavior of LRB and also uses a Newton type numerical solution technique to solve for response of the bearing. The model, proposed in this study, utilizing vertical springs approach has shown to be capable of simulating the strength, stiffness and hysteretic behavior of LRB well.
Author | : James M. Kelly |
Publisher | : John Wiley & Sons |
Total Pages | : 217 |
Release | : 2011-08-24 |
Genre | : Technology & Engineering |
ISBN | : 1119972809 |
Download Mechanics of Rubber Bearings for Seismic and Vibration Isolation Book in PDF, Epub and Kindle
Widely used in civil, mechanical and automotive engineering since the early 1980s, multilayer rubber bearings have been used as seismic isolation devices for buildings in highly seismic areas in many countries. Their appeal in these applications comes from their ability to provide a component with high stiffness in one direction with high flexibility in one or more orthogonal directions. This combination of vertical stiffness with horizontal flexibility, achieved by reinforcing the rubber by thin steel shims perpendicular to the vertical load, enables them to be used as seismic and vibration isolators for machinery, buildings and bridges. Mechanics of Rubber Bearings for Seismic and Vibration Isolation collates the most important information on the mechanics of multilayer rubber bearings. It explores a unique and comprehensive combination of relevant topics, covering all prerequisite fundamental theory and providing a number of closed-form solutions to various boundary value problems as well as a comprehensive historical overview on the use of isolation. Many of the results presented in the book are new and are essential for a proper understanding of the behavior of these bearings and for the design and analysis of vibration or seismic isolation systems. The advantages afforded by adopting these natural rubber systems is clearly explained to designers and users of this technology, bringing into focus the design and specification of bearings for buildings, bridges and industrial structures. This comprehensive book: includes state of the art, as yet unpublished research along with all required fundamental concepts; is authored by world-leading experts with over 40 years of combined experience on seismic isolation and the behavior of multilayer rubber bearings; is accompanied by a website at www.wiley.com/go/kelly The concise approach of Mechanics of Rubber Bearings for Seismic and Vibration Isolation forms an invaluable resource for graduate students and researchers/practitioners in structural and mechanical engineering departments, in particular those working in seismic and vibration isolation.
Author | : L. C. Zhang |
Publisher | : World Scientific |
Total Pages | : 738 |
Release | : 2002 |
Genre | : Technology & Engineering |
ISBN | : 9789812777973 |
Download Applied Mechanics Book in PDF, Epub and Kindle
This book contains the proceedings of the Third Australasian Congress on Applied Mechanics (ACAM2002). The Congress was held to provide an international forum for researchers, industry practitioners, engineers and postgraduate scholars to exchange and disseminate knowledge and experience of the most recent advances with a focus on the behaviour of solids. Topics include: biomechanics; constitutive modelling; damage; fracture; fatigue; dynamics; impact; vibration; geo-mechanics; tribology; machining and more.
Author | : Ioannis V. Kalpakidis |
Publisher | : |
Total Pages | : 270 |
Release | : 2008 |
Genre | : Bridges |
ISBN | : |
Download Effects of Heating and Load History on the Behavior of Lead-rubber Bearings Book in PDF, Epub and Kindle
Author | : Jinrong Zhu |
Publisher | : CRC Press |
Total Pages | : 210 |
Release | : 2010-10-06 |
Genre | : Technology & Engineering |
ISBN | : 0203829859 |
Download Modelling and Computation in Engineering Book in PDF, Epub and Kindle
In recent years the theory and technology of modelling and computation in engineering has expanded rapidly, and has been widely applied in various kinds of engineering projects. Modelling and Computation in Engineering is a collection of 37 contributions, which cover the state-of-the-art on a broad range of topics, including:- Tunnelling- Seismic r
Author | : Tom Proulx |
Publisher | : Springer Science & Business Media |
Total Pages | : 542 |
Release | : 2011-03-24 |
Genre | : Technology & Engineering |
ISBN | : 1441994289 |
Download Rotating Machinery, Structural Health Monitoring, Shock and Vibration, Volume 5 Book in PDF, Epub and Kindle
Rotating Machinery, Structural Health Monitoring, Shock and Vibration, Volume 5 Proceedings of the 29th IMAC, A Conference and Exposition on Structural Dynamics, 2011, the fifth volume of six from the Conference, brings together 35 contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Rotating Machinery, Structural Health Monitoring, as well as Shock and Vibration, along with other structural engineering areas.
Author | : T.T. Soong |
Publisher | : Springer |
Total Pages | : 380 |
Release | : 2014-05-04 |
Genre | : Computers |
ISBN | : 3709130123 |
Download Passive and Active Structural Vibration Control in Civil Engineering Book in PDF, Epub and Kindle
Base isolation, passive energy dissipation and active control represent three innovative technologies for protection of structures under environmental loads. Increasingly, they are being applied to the design of new structures or to the retrofit of existing structures against wind, earthquakes and other external loads. This book, with contributions from leading researchers from Japan, Europe, and the United States, presents a balanced view of current research and world-wide development in this exciting and fast expanding field. Basic principles as well as practical design and implementational issues associated with the application of base isolation systems and passive and active control devices to civil engineering structures are carefully addressed. Examples of structural applications are presented and extensively discussed.
Author | : Dynamic Isolation Systems, Inc |
Publisher | : |
Total Pages | : |
Release | : 1987 |
Genre | : |
ISBN | : |
Download Design of Lead-rubber Bearings for Bridges Book in PDF, Epub and Kindle
Author | : Sivaraman Guruswamy |
Publisher | : CRC Press |
Total Pages | : 650 |
Release | : 1999-11-09 |
Genre | : Technology & Engineering |
ISBN | : 1482276909 |
Download Engineering Properties and Applications of Lead Alloys Book in PDF, Epub and Kindle
Focusing on the uses of lead in pure or alloy form for engineering applications, this text presents data on the physical, mechanical, corrosive, accoustic, damping and nuclear properties of lead and lead alloys. It organizes information according to alloy type in tables, graphs and text, and examines the processing of commercially available lead pr
Author | : Yousef Bozorgnia |
Publisher | : CRC Press |
Total Pages | : 958 |
Release | : 2004-05-11 |
Genre | : Technology & Engineering |
ISBN | : 0203486242 |
Download Earthquake Engineering Book in PDF, Epub and Kindle
This multi-contributor book provides comprehensive coverage of earthquake engineering problems, an overview of traditional methods, and the scientific background on recent developments. It discusses computer methods on structural analysis and provides access to the recent design methodologies and serves as a reference for both professionals and res