A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Isolation Design for Achieving Resilient Structures
Resiliency is an important consideration while designing critical buildings, bridges, and industrial structures in earthquake prone regions of the world. This is necessary for minimizing post-earthquake disruption to society. Major earthquakes that have occurred every year in the world are a constant reminder that critical structures must remain operational post-earthquake, so that community needs are met. Hospitals need to remain operational in order to treat injured people and save lives. Bridges classified as lifeline structures also need to remain functional so that rescue and recovery operations can be performed. Gas, water and electric facilities also need to remain functional post-earthquake so that basic services are not interrupted. Code provisions (ductility based) for seismic design of structures all over the world have focused primarily on achieving “Collapse Prevention” within acceptable limits, at the expense of inflicting damage to structural, non-structural, architectural elements, and contents. After a major earthquake this results in loss of use and function, as observed in recent Japan, New Zealand and Chile earthquakes. One of the approach to achieve resiliency is through continued functionality design objectives for minimizing damage in structures by absorbing seismic displacement in isolation bearings, maintaining an elastic structure, and minimizing in-structure accelerations and drifts. The paper presents the current pitfalls of code compliant seismic isolation provisions, and a way forward for the right approach for implementing seismic isolation following the “Continued-Functionality Standard (CFS)” to meet the owner’s expectation. Examples of resilient isolated structures worldwide designed and constructed at lower costs than conventional ductile structures are presented. Real earthquake performance of CFS designed seismically isolated structures are also presented.
Seismic Isolation Design for Achieving Resilient Structures
Resiliency is an important consideration while designing critical buildings, bridges, and industrial structures in earthquake prone regions of the world. This is necessary for minimizing post-earthquake disruption to society. Major earthquakes that have occurred every year in the world are a constant reminder that critical structures must remain operational post-earthquake, so that community needs are met. Hospitals need to remain operational in order to treat injured people and save lives. Bridges classified as lifeline structures also need to remain functional so that rescue and recovery operations can be performed. Gas, water and electric facilities also need to remain functional post-earthquake so that basic services are not interrupted. Code provisions (ductility based) for seismic design of structures all over the world have focused primarily on achieving “Collapse Prevention” within acceptable limits, at the expense of inflicting damage to structural, non-structural, architectural elements, and contents. After a major earthquake this results in loss of use and function, as observed in recent Japan, New Zealand and Chile earthquakes. One of the approach to achieve resiliency is through continued functionality design objectives for minimizing damage in structures by absorbing seismic displacement in isolation bearings, maintaining an elastic structure, and minimizing in-structure accelerations and drifts. The paper presents the current pitfalls of code compliant seismic isolation provisions, and a way forward for the right approach for implementing seismic isolation following the “Continued-Functionality Standard (CFS)” to meet the owner’s expectation. Examples of resilient isolated structures worldwide designed and constructed at lower costs than conventional ductile structures are presented. Real earthquake performance of CFS designed seismically isolated structures are also presented.
Seismic Isolation Design for Achieving Resilient Structures
Lecture Notes in Civil Engineering
Cimellaro, Gian Paolo (editor) / Mokha, Anoop S. (author) / Zayas, Victor (author) / Low, Stanley (author)
World Conference on Seismic Isolation ; 2022 ; Turin, Italy
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures ; Chapter: 11 ; 169-178
2023-01-07
10 pages
Article/Chapter (Book)
Electronic Resource
English
Resiliency , Seismic performance , Seismic damage , Continued functionality , Seismic isolation , Collapse prevention Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Fire Science, Hazard Control, Building Safety , Building Construction and Design , Cultural Heritage
Achieving Resilient Building Designs
| British Library Conference Proceedings | 2003
Review on seismic resilient bridge structures
| SAGE Publications | 2022
Optimum Design of Resilient Sliding Isolation System for Seismic Protection of Equipments
| British Library Online Contents | 2007