A passive shape-memory-alloy–rubber-bearing seismic isolator for offshore platforms-Reference-Cited by-同舟云学术

A passive shape-memory-alloy–rubber-bearing seismic isolator for offshore platforms

Published:2022-01-24 Issue: Volume: Page:1-11
ISSN:0965-0911
Container-title:Proceedings of the Institution of Civil Engineers - Structures and Buildings
language:en
Short-container-title:Proceedings of the Institution of Civil Engineers - Structures and Buildings

Author:

Rajbanshi Soumi¹,Das Diptesh²

Affiliation:

1. Postgraduate student, Department of Civil Engineering, National Institute of Technology, Durgapur, India (corresponding author: )

2. Associate Professor, Department of Civil Engineering, National Institute of Technology, Durgapur, India

Abstract

A passive shape-memory-alloy–rubber-bearing isolator has been developed for seismic protection of offshore jacket platforms. Mathematical modelling of an offshore jacket platform subjected to earthquake ground motions was undertaken, after which a systematic study of the key parameters of the isolator was undertaken to investigate its efficiency and to improve its performance. Dynamic time history analyses were carried out for both isolated and non-isolated jacket platforms using scaled ground motions. These clearly indicated the effectiveness of the isolator in controlling the overall responses of the jacket platform. It was better at mitigating structural displacement than structural acceleration, and its performance was dependent on the duration of ground motion.

Publisher

Thomas Telford Ltd.

Subject

Building and Construction,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jstbu.20.00225

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