RESPONSE VERIFICATION
1 INTRODUCTION 1 11 Background 1 12 Report Organization 2 2 NON-STRUCTURAL COMPONENT RESPONSE AND SEISMIC ISOLATION SYSTEMS 3 3 COMPONENT AND SYSTEM EVALUATION 9 31 Introduction 9 32 Testing Machine Description 9 33 Viscous Damping Devices 11 34 Bearing Testing 11 341 Friction Pendulum (FP) Bearings 15 342 Low Damping Elastomeric Bearings 16 343 Lead-Core Bearings 21 344 Flat Sliding Bearings 24 35 Six-Story Model 26 36 Tested Configurations 29 37 Identification of Properties of Tested Configurations 33 38 Instrumentation 38 39 Testing Program 38 4 RESULTS OF EARTHQUAKE SIMULATOR TESTING 61 41 Introduction 61 42 Moment Frame Test Results 61 43 Braced Frame Test Results 66 44 Asymmetrically Braced Frame Test Results 70 45 Interpretation of Results 74 451 Impact of Added Viscous Damping Devices 75 452 Primary and Secondary System Response 78 453 Torsional Response in Asymmetric Seismically Isolated Buildings 89 454 Variation of Axial Load on Bearings 92 5 ANALYTICAL PREDICTION OF RESPONSE 97 51 Introduction 97 52 Analytical Model of Bearings 97 521 Low Damping Elastomeric Bearings 97 522 Friction Pendulum (FP) Bearings 100 523 Lead-Core Bearings 100 524 Flat Sliding Bearings 100 53 Analytical Model of Damping Devices 102 54 Analytical Model of Tested Structure 102 55 Comparison of Analytical and Experimental Results 106 CONCLUSIONS 115 REFERENCES 117