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Experimental and Analytical Studies on the Horizontal Behavior of Elastomeric Bearings under Support Rotation
Publisher: ASCE
Abstract: Laminated elastomeric bearings are used widely as seismic isolation devices. Most previous studies on the horizontal behavior of elastomeric bearings have assumed that the rotations of the top and bottom supports of the ...
Buckling of Short Beams Considering Shear Warping: Application to Fiber-Reinforced Elastomeric Isolators
Publisher: ASCE
Abstract: This paper presents a theory for the buckling of short beams considering cross-sectional distortions due to transverse shear (i.e., shear warping), based on the consistent linearization of a geometrically nonlinear ...
Evaluation of Vision-Based Measurements for Shake-Table Testing of Nonstructural Components
Publisher: American Society of Civil Engineers
Abstract: During an earthquake, freestanding equipment and contents in a building may experience large complex 3D motion. Depending on the geometry, mass distribution, and support mechanism (e.g., wheels, casters, legs) of the object, ...
Peak Sliding Demands on Unanchored Equipment and Contents in Base-Isolated Buildings under Pulse Excitation
Publisher: American Society of Civil Engineers
Effect of the Stick-Slip Phenomenon on the Sliding Response of Objects Subjected to Pulse Excitation
Publisher: American Society of Civil Engineers
Abstract: The response analysis of sliding objects and structures subjected to ground excitation is most often performed using Newmark’s rigid sliding block with Coulomb friction. This simplified sliding model has been shown to ...
Experimental Study on the Seismic Response of Equipment on Wheels and Casters in Base-Isolated Hospitals
Publisher: American Society of Civil Engineers
Abstract: Base isolation is accepted as the method of choice for mitigating the seismic risk of critical facilities, including hospitals. However, while many studies have confirmed the effectiveness of isolation in reducing seismic ...
Influence of Steel Reinforcement on the Performance of Elastomeric Bearings
Publisher: ASCE
Abstract: Seismic isolation is an effective measure for mitigating earthquake hazard on important structures such as bridges, hospitals, and nuclear power plants. Seismically isolated structures should remain essentially elastic for ...
Effective Warping Properties and Buckling Analysis of Fiber-Reinforced Elastomeric Isolators
Publisher: ASCE
Abstract: Fiber-reinforced elastomeric isolators (FREIs) have been proposed as a cost-effective solution for expanding the use of seismic isolation to normal-importance structures. By using lightweight fiber reinforcement and ...
Effect of Friction on Unbonded Elastomeric Bearings
Publisher: American Society of Civil Engineers
Abstract: This paper describes a theoretical analysis of a type of thermal expansion bridge bearing which could be used as a lightweight low-cost elastomeric seismic isolator for application to housing, schools, and other public ...
Rocking Response of Unanchored Building Contents Considering Horizontal and Vertical Excitation
Publisher: ASCE
Abstract: The seismic performance of unanchored slender contents at various floor levels within a building has received little attention in the literature, despite earthquake reconnaissance reports routinely emphasizing the overturning ...