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Seismic Response of Isolated Bridges
Publisher: American Society of Civil Engineers
Abstract: The seismic response of bridges seismically isolated by lead-rubber bearings (L-RB) to bidirectional earthquake excitation (i.e., two horizontal components) is presented in this paper. The force-deformation behavior of ...
Stochastic Response of Bridges Seismically Isolated by Friction Pendulum System
Publisher: American Society of Civil Engineers
Abstract: Stochastic response of bridges seismically isolated by the friction pendulum system (FPS) is investigated. The earthquake excitation is modeled by a nonstationary random process (i.e., uniformly modulated broadband ...
Seismic Performance Assessment of Clutching Inerter Damper for Isolated Bridges
Publisher: ASCE
Abstract: The seismic performance of supplemental clutching inerter dampers (CID) for continuous span isolated bridges is assessed. The resisting force of the CID is considered nonlinear and proportional to the relative acceleration, ...
Unbonded Fiber-Reinforced Elastomeric Isolators for Isolating Masonry Buildings
Publisher: ASCE
Abstract: This study focuses on the design procedure and development of the unbonded fiber-reinforced elastomeric isolator (UFREI) and its application to prevalent masonry building practices in developing countries. The proposed ...
Seismic Control and Performance Assessment of Isolated Bridges Using Integration of Negative Stiffness and Inerter-Based Supplemental Control Devices
Publisher: American Society of Civil Engineers
Abstract: The present study introduces inerter-based absorbers (IVAs), negative stiffness dampers (NSDs), and their synergistic combination as supplemental control strategies for a multispan continuous deck isolated bridge structure. ...
Effectiveness of Elliptical Rolling Rods for Base Isolation
Publisher: American Society of Civil Engineers
Abstract: Elliptical rolling rods between the base and foundation of a structure provide a new base isolation system. Herein, the effectiveness of elliptical rolling rods for isolating a multistory building against earthquake forces ...
Nonlinear Response of Torsionally Coupled Base Isolated Structure
Publisher: American Society of Civil Engineers
Abstract: Nonlinear response of torsionally coupled base isolated system to random ground motion is obtained under different parametric variations using a simulation procedure. Parameters include those which characterize mass, ...
Effects of Pier and Deck Flexibility on the Seismic Response of Isolated Bridges
Publisher: American Society of Civil Engineers
Abstract: The seismic response of bridges isolated by elastomeric bearings and the sliding system is investigated under two horizontal components of real earthquake ground motions. The selected bridges consist of multispan continuous ...
Base Isolation for Seismic Retrofitting of Structures
Publisher: American Society of Civil Engineers
Abstract: Analytical seismic responses of structures retrofitted using base isolation devices are investigated and the retrofit schemes are illustrated. The retrofitting of various important structures using seismic isolation technique ...
Seismic Soil–Structure Interaction Analysis of Base Isolated Nuclear Building of Indian Pressurized Heavy Water Reactor Subjected to Coherent Ground Motion
Publisher: American Society of Civil Engineers
Abstract: Research work of this study focuses on the seismic soil-structure interaction (SSSI) analysis of a base isolated nuclear building (NB) of the Indian pressurized heavy water reactor (IPHWR) under the action of coherent ...