Seismic reliability of structures equipped with LIR‐DCFP bearings in terms of superstructure ductility and isolator displacement

G Auad, P Castaldo, JL Almazán - Earthquake Engineering & …, 2022 - Wiley Online Library
This research deals with the seismic reliability of non‐linear base‐isolated structures
equipped with Lateral Impact Resilient Double Concave Friction Pendulum (LIR‐DCFP) …

Seismic reliability-based design of hardening and softening structures isolated by double concave sliding devices

P Castaldo, G Alfano - Soil Dynamics and Earthquake Engineering, 2020 - Elsevier
This study proposes seismic reliability-based design relationships in terms of behavior
factors and displacement demands for softening and hardening structures equipped with …

Improving the earthquake resilience of isolated buildings with double concave curved surface sliders

A Di Cesare, FC Ponzo, A Telesca - Engineering Structures, 2021 - Elsevier
The underlying concept of base isolation is the uncoupling of the horizontal building
movement from ground motions using a flexible isolation layer made with either elastomeric …

Effect of displacement restraint on the collapse performance of seismically isolated buildings

S Kitayama, MC Constantinou - Bulletin of Earthquake Engineering, 2019 - Springer
This study investigates the effect of displacement restraint on the collapse performance of
seismically isolated buildings. The displacement restraints considered are stiffening triple …

On the influence of unexpected earthquake severity and dampers placement on isolated structures subjected to pounding using the modified endurance time method

A Majdi, A Sadeghi-Movahhed, M Mashayekhi… - Buildings, 2023 - mdpi.com
The aim of this study is to investigate the performance of isolated structures by considering
the possibility of impact under severe earthquakes. In the design of isolated structures, the …

Performance evaluation of seismically isolated buildings near active faults

S Kitayama, MC Constantinou - Earthquake Engineering & …, 2022 - Wiley Online Library
This paper investigates the collapse risk of seismically isolated buildings that are designed
by the procedures of the ASCE/SEI 7‐16 standard for sites within 5 km of the active fault that …

Evaluating the use of variable curvature frictional isolators to mitigate the adverse effects of internal lateral impacts

G Auad, JL Almazán - Engineering Structures, 2022 - Elsevier
Under high magnitude ground motions, excessive base displacement can generate internal
lateral impacts between inner sliders and restraining rims of frictional isolators. This study …

Inelastic response of base-isolated structures subjected to impact

Y Bao, TC Becker - Engineering Structures, 2018 - Elsevier
While base isolation provides enhanced structural and non-structural seismic performance,
there are still concerns regarding large horizontal displacements in extreme earthquakes …

Three-dimensional double friction pendulum bearing model including uplift and impact behavior: Formulation and numerical example

Y Bao, T Becker - Engineering Structures, 2019 - Elsevier
Friction pendulum bearings have attracted significant attention as a system to achieve
multiple performance objectives under increased levels of earthquakes. Despite the …

A vertical isolation device with variable stiffness for long-span spatial structures

Z Chen, Y Ding, Y Shi, Z Li - Soil Dynamics and Earthquake Engineering, 2019 - Elsevier
A vertical isolation device with variable stiffness (VIVS) is developed using multiple hydraulic
cylinders, which can form a three dimensional (3D) isolation device with a horizontal rubber …