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Mechanics of Rubber Bearings for Seismic and Vibration Isolation [Other digital carrier]

(University of California at Berkeley), (Univerisity of California at Berkeley)
  • Formaat: Other digital carrier, 240 pages, kõrgus x laius x paksus: 254x178x15 mm, kaal: 666 g
  • Ilmumisaeg: 23-Aug-2011
  • Kirjastus: John Wiley & Sons Inc
  • ISBN-10: 111997187X
  • ISBN-13: 9781119971870
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Mechanics of Rubber Bearings for Seismic and Vibration IsolationSuurem pilt
  • Formaat: Other digital carrier, 240 pages, kõrgus x laius x paksus: 254x178x15 mm, kaal: 666 g
  • Ilmumisaeg: 23-Aug-2011
  • Kirjastus: John Wiley & Sons Inc
  • ISBN-10: 111997187X
  • ISBN-13: 9781119971870
Teised raamatud teemal:
Püsilink: https://www.kriso.ee/db/9781119971870.html
Märksõnad:
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  • includes state of the art, as yet unpublished research along with all required fundamental concepts;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.

About the Authors ix Preface xiii 1 History of Multilayer Rubber
Bearings 1 2 Behavior of Multilayer Rubber Bearings under Compression 19
2.1 Introduction 19 2.2 Pure Compression of Bearing Pads with Incompressible
Rubber 19 2.2.1 Infinite Strip Pad 24 2.2.2 Circular Pad 25 2.2.3
Rectangular Pad (with Transition to Square or Strip) 26 2.2.4 Annular Pad 27
2.3 Shear Stresses Produced by Compression 30 2.4 Pure Compression of
Single Pads with Compressible Rubber 33 2.4.1 Infinite Strip Pad 33 2.4.2
Circular Pad 36 2.4.3 Rectangular Pad 39 2.4.4 Annular Pad 40 3 Behavior
of Multilayer Rubber Bearings under Bending 45 3.1 Bending Stiffness of
Single Pad with Incompressible Rubber 45 3.1.1 Infinite Strip Pad 47 3.1.2
Circular Pad 48 3.1.3 Rectangular Pad 49 3.1.4 Annular Pad 51 3.2 Bending
Stiffness of Single Pads with Compressible Rubber 52 3.2.1 Infinite Strip
Pad 52 3.2.2 Circular Pad 54 3.2.3 Rectangular Pad 57 3.2.4 Annular Pad 58
4 Steel Stress in Multilayer Rubber Bearings under Compression and Bending
63 4.1 Review of the Compression and Bending of a Pad 64 4.2 Steel Stresses
in Circular Bearings with Incompressible Rubber 65 4.2.1 Stress Function
Solution for Pure Compression 68 4.2.2 Stress Function Solution for Pure
Bending 71 4.3 Steel Stresses in Circular Bearings with Compressible Rubber
73 4.3.1 Stress Function Solution for Pure Compression 73 4.3.2 Stress
Function Solution for Pure Bending 76 4.4 Yielding of Steel Shims under
Compression 78 4.4.1 Yielding of Steel Shims for the Case of Incompressible
Rubber 78 4.4.2 Yielding of Steel Shims for the Case of Compressible Rubber
79 5 Buckling Behavior of Multilayer Rubber Isolators 83 5.1 Stability
Analysis of Bearings 83 5.2 Stability Analysis of Annular Bearings 90 5.3
Influence of Vertical Load on Horizontal Stiffness 91 5.4 Downward
Displacement of the Top of a Bearing 95 5.5 A Simple Mechanical Model for
Bearing Buckling 100 5.5.1 Postbuckling Behavior 104 5.5.2 Influence of
Compressive Load on Bearing Damping Properties 106 5.6 Rollout Stability 108
5.7 Effect of Rubber Compressibility on Buckling 110 6 Buckling of
Multilayer Rubber Isolators in Tension 113 6.1 Introduction 113 6.2
Influence of a Tensile Vertical Load on the Horizontal Stiffness 115 6.3
Vertical Displacement under Lateral Load 117 6.4 Numerical Modelling of
Buckling in Tension 120 6.4.1 Modelling Details 120 6.4.2 Critical Buckling
Load in Compression and Tension 122 7 Influence of Plate Flexibility on the
Buckling Load of Multilayer Rubber Isolators 129 7.1 Introduction 129 7.2
Shearing Deformations of Short Beams 130 7.3 Buckling of Short Beams with
Warping Included 139 7.4 Buckling Analysis for Bearing 146 7.5 Computation
of Buckling Loads 153 8 Frictional Restraint on Unbonded Rubber Pads 159
8.1 Introduction 159 8.2 Compression of Long Strip Pad with Frictional
Restraint 160 8.3 The Effect of Surface Slip on the Vertical Stiffness of an
Infinite Strip Pad 163 8.4 The Effect of Surface Slip on the Vertical
Stiffness of a Circular Pad 169 9 Effect of Friction on Unbonded Rubber
Bearings 177 9.1 Introduction 178 9.2 Bearing Designs and Rubber Properties
180 9.3 Ultimate Displacement of Unbonded Bearings 180 9.4 Vertical
Stiffness of Unbonded Rubber Bearings with Slip on their Top and Bottom
Supports 184 Appendix: Elastic Connection Device for One or More Degrees of
Freedom 193 References 209 Photograph Credits 213 Author Index 215
Subject Index 217