Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"elastomeric bearings"”.
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Elastomeric bearings in high demand applications : numerical study and experimental validation
Pot and disk bearings are typically used in high-demand bridge applications where significant demands are imposed on bearings at the supports to accommodate rotations and complex bridge movements from both environmental thermal loads and vehicular traffic. However, past bridge research, design, and …
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Modeling the Seismic Response of Short Bridge Overcrossings
Conventional elastomeric bearings are primarily used in the Midwest for accommodating temperature movements, yet can play a significant role in reducing column displacement demands in earthquakes. Nonlinear models for Illinois Type I, II and III elastomeric bearings are developed. The effectiveness …
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Sacrificial bearing components for quasi-isolated response of bridges subject to high-magnitude, low-probability seismic hazard
… zones, such as Mid-America, commonly employ elastomeric expansion bearings to accommodate service-level thermal deformations in the superstructure. Any potentially beneficial effect of these bearings during seismic loading is typically ignored, and the surrounding substructure or …
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Nonlinear seismic analysis of quasi-isolation systems for earthquake protection of bridges
… and isolation is achieved by sliding of the bearings. The system is a pragmatic approach for providing earthquake resilient bridges in locations such as the eastern and central United States, as well as in many locations around the world where there is significant earthquake risk at long …
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Quasi-isolated highway bridges: influence of bearing anchorage strength on seismic performance
… of Transportation (IDOT) commonly uses elastomeric bearings to accommodate thermal deformations in bridges, and these bearings also have potential utility in seismic events. IDOT has developed an earthquake resisting system (ERS) using the displacement capacity of typical bearings to …
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A Fail-safe, Bi-Linear Liquid Spring, Controllable Magnetorheological Fluid Damper for a Three-dimensional Earthquake Isolation System
… which consist of layers of rubber or friction bearings separating the building from its foundation, are effective in protecting buildings from damage due to horizontal ground shakings. However, recent realistic large-scale earthquake shaking tests have shown that nonstructural components and …
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Fundamental Dynamics and Performance Assessment of Three-Dimensional Seismic Isolation
… consisting of a rigid block resting on isolation bearings is studied. The overall structural response of the 3D isolated block is evaluated through drift ratio, vertical and horizontal displacement and acceleration amplification factors. A parametric study is carried out to evaluate the effect of …
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Assessment of modeling sensitivity for nonlinear seismic analysis of highway bridges in Illinois
… approach, however considering only conventional bearings, in order to formulate a cost-effective “quasi-isolation” concept targeted to the seismic hazard and typical bridge configurations in Illinois. An Earthquake Resisting System (ERS) based on quasi-isolation uses elastomeric bearings and is …