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Research Article

Performance analysis of lead rubber bearing isolation system for low, medium and high- rise RC buildings

Mrudula Madhukumar, Helen Santhi M, Vasugi V

School of Civil Engineering, Vellore Institute of Technology, Chennai, India.

Keywords

Abstract

RC frame;


Base isolation;


Hinge formation;


Lateral displacement;


Performance level;


Ductility

Earthquakes are the most vulnerable natural hazard which causes damage to both structure and human life. Even though advanced technologies have invented some degree of predictability in terms of probabilistic measures the main challenge for the structural engineers is to design earthquake-resistant structures. The use of base isolation solutions allows a building to withstand potentially devastating seismic impacts by allowing for flexibility in between building and the foundation. The concept of base isolation system had been suggested in last few decades and getting well established in countries like US, Japan and Turkey. Properly designed and detailed building with base isolation has shown very good performance in past earthquakes and the demand of base isolation has increased. The main focus of this study is to understand the performance and efficacy of base isolation in regular multi-storey RC framed structures with varying heights using lead rubber bearing by response spectrum analysis and pushover analysis. The software used was ETABS 2018 followed by IS 1893(Part 1):2016 and ASCE 7-16 under most credible earthquake. Performance of lead rubber bearing in G+5, G+15 and G+25 storey building models was examined and compared with the fixed base buildings. All the models showed better performance with isolators than the fixed base models. However, the effectiveness of base isolators is more prominent in medium and high-rise buildings.

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LATEST News


13/04/2022 Fraudulent Emails Impersonating Our Journal: We noticed that some emails are sent to some people impersonating our journal staff as sender and requesting recipients to follow some links. Our journal and staff has nothing to do with these emails and please do not follow the given links. Senders seem to have malicious aims. The emails include a portion of some of our previous emails to the journal users and researchers. This is only to deceive the receiver and make them trust the email. Do not follow any links or perform suspicious actions specified in these emails. Please, check the sender info carefully. Even the sender address or name resembles the journal related words they are different, generally in an easily noticeable way.


09/03/2022 Reviewer Awards: The reviewers are the anonymous heroes of the publishing society. Reviewing manuscripts is not an easy task but it is critical to the advancement of scientific knowledge. Even if authors take credit for publishing papers, the recognition of the reviewers are highly limited for their work. Therefore, our journal announces the reviewers that participated in editorial processes of the submitted articles in a yearly basis. Now, we expand our efforts to appreciate the valuable contribution of our reviewers and start to give Outstanding Reviewer Awards and Best Review Awards.


More info can be found at Reviewer Awards section. 


29/12/2021 Best Paper Award: According to the Advisory Board decision, the paper authored by Sahar Ismail, Wassim Raphael, Emmanuel Durand entitled as “Case study of the Beirut port explosion using 3D laser scan and nonlinear finite element model” is awarded the 2021 Best Paper Award of Research on Engineering Structures and Materials (RESM). We congratulate the authors and wish them a continued success.  



29/12/2021 Most Cited Paper Award: According to the Editorial Board evaluation, the paper authored by Sinan Kutluay, Orhan Baytar, Ömer Şahin entitled as “Adsorption kinetics, equilibrium and thermodynamics
of gas-phase toluene onto char produced from almond shells" is awarded the 2021 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM). We congratulate the authors and wish them a continued success.


(More details of the news may be given in the News section)


For more see News...

LATEST AWARDS


2021 Best Paper Award:

The paper authored by Sahar Ismail, Wassim Raphael, Emmanuel Durand entitled as “Case study of the Beirut port explosion using 3D laser scan and nonlinear finite element model” is awarded the 



2021 Most Cited Paper Award:

The paper authored by Sinan Kutluay, Orhan Baytar, Ömer Şahin entitled as “Adsorption kinetics, equilibrium and thermodynamics of gas-phase toluene onto char produced from almond shells" is awarded the


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Last Update:

18.11.2022

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