Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of Bridges
Seismic isolation systems have been used worldwide in bridge structures to reduce vibration and avoid collapse. The seismic isolator, damper, and Shock Transmission Unit (SUT) are generally adopted in the seismic design of bridges to improve their seismic safety with economic efficiency. There are s...
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doaj-7d722b39a7514b198bd3c8964ea085582020-11-25T04:02:51ZengMDPI AGMaterials1996-19442020-11-01135247524710.3390/ma13225247Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of BridgesChang Beck Cho0Young Jin Kim1Won Jong Chin2Jin-Young Lee3Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaDepartment of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaDepartment of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaSchool of Agricultural Civil & Bio-industrial Engineering, Kyungpook National University, Daegu 41566, KoreaSeismic isolation systems have been used worldwide in bridge structures to reduce vibration and avoid collapse. The seismic isolator, damper, and Shock Transmission Unit (SUT) are generally adopted in the seismic design of bridges to improve their seismic safety with economic efficiency. There are several seismic isolation systems, such as Natural Rubber Bearing (NRB), Lead Rubber Bearing (LRB), and the Eradi-Quake System (EQS). EQS as a new technology is expected to effectively reduce both seismic force and displacement, but there is still some need to verify whether it might provide an economical and practical strategy for a bridge isolation system. Moreover, it is important to guarantee consistent performance of the isolators by quality control. A comparative evaluation of the basic properties of the available seismic isolators is thus necessary to achieve a balance between cost-effectiveness and the desired performance of the bridge subjected to extreme loading. Accordingly, in this study, the seismic response characteristics of the seismic isolation systems for bridges were investigated by conducting compressive test and compressive-shear test on NRB, LRB, and EQS.https://www.mdpi.com/1996-1944/13/22/5247seismic isolatorseismic isolation of bridgesnatural rubber bearinglead rubber bearingEradi-Quake System (EQS)energy dissipated per cycle (EDC) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chang Beck Cho Young Jin Kim Won Jong Chin Jin-Young Lee |
spellingShingle |
Chang Beck Cho Young Jin Kim Won Jong Chin Jin-Young Lee Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of Bridges Materials seismic isolator seismic isolation of bridges natural rubber bearing lead rubber bearing Eradi-Quake System (EQS) energy dissipated per cycle (EDC) |
author_facet |
Chang Beck Cho Young Jin Kim Won Jong Chin Jin-Young Lee |
author_sort |
Chang Beck Cho |
title |
Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of Bridges |
title_short |
Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of Bridges |
title_full |
Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of Bridges |
title_fullStr |
Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of Bridges |
title_full_unstemmed |
Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of Bridges |
title_sort |
comparing rubber bearings and eradi-quake system for seismic isolation of bridges |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2020-11-01 |
description |
Seismic isolation systems have been used worldwide in bridge structures to reduce vibration and avoid collapse. The seismic isolator, damper, and Shock Transmission Unit (SUT) are generally adopted in the seismic design of bridges to improve their seismic safety with economic efficiency. There are several seismic isolation systems, such as Natural Rubber Bearing (NRB), Lead Rubber Bearing (LRB), and the Eradi-Quake System (EQS). EQS as a new technology is expected to effectively reduce both seismic force and displacement, but there is still some need to verify whether it might provide an economical and practical strategy for a bridge isolation system. Moreover, it is important to guarantee consistent performance of the isolators by quality control. A comparative evaluation of the basic properties of the available seismic isolators is thus necessary to achieve a balance between cost-effectiveness and the desired performance of the bridge subjected to extreme loading. Accordingly, in this study, the seismic response characteristics of the seismic isolation systems for bridges were investigated by conducting compressive test and compressive-shear test on NRB, LRB, and EQS. |
topic |
seismic isolator seismic isolation of bridges natural rubber bearing lead rubber bearing Eradi-Quake System (EQS) energy dissipated per cycle (EDC) |
url |
https://www.mdpi.com/1996-1944/13/22/5247 |
work_keys_str_mv |
AT changbeckcho comparingrubberbearingsanderadiquakesystemforseismicisolationofbridges AT youngjinkim comparingrubberbearingsanderadiquakesystemforseismicisolationofbridges AT wonjongchin comparingrubberbearingsanderadiquakesystemforseismicisolationofbridges AT jinyounglee comparingrubberbearingsanderadiquakesystemforseismicisolationofbridges |
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1724442005117861888 |