Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator

Earthquake is one of the biggest natural phenomena that causes damage and loss of life. Malaysia is prone to seismic tremors originating from nearby countries such as Indonesia and Philippines. The Sumatran earthquake in 2005 has raised questions about the structural stability and integrity in Malay...

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Main Author:	Arjuna, Norazah
Format:	Thesis
Language:	English
Published:	2016
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/78837/1/NorazahArjunaMFKA2016.pdf
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id	my-utm-ep.78837
record_format	uketd_dc
spelling	my-utm-ep.788372018-09-17T04:21:04Z Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator 2016-05 Arjuna, Norazah TA Engineering (General). Civil engineering (General) Earthquake is one of the biggest natural phenomena that causes damage and loss of life. Malaysia is prone to seismic tremors originating from nearby countries such as Indonesia and Philippines. The Sumatran earthquake in 2005 has raised questions about the structural stability and integrity in Malaysia including tunnel structures, given the substantial seismic effect from Sumatran earthquake. In addition, the waves that pass through soil medium would affect the behaviour of subsurface structure in tunnels. The scope of this study focused on Klang Valley Mass Rapid Transit (KVMRT Sungai Buloh – Kajang Line) in Malaysia. Rubber based isolators were inserted underneath the floating slab track of the tunnel to study the effectiveness of the isolated installation under earthquake loading and to identify the functions of the base isolator system used for the floating slab track of a tunnel. The finite element analysis of the individual base isolator conforms to the experimental laboratory testing under compression and shear loads. In order to verify the results of structural analysis, the finite element analysis was carried out for the base isolator under static analysis approach. Meanwhile, the tunnel floating slab track was modelled using finite element method (FEM) under dynamic analysis approach. Time history analysis was performed with peak ground acceleration to the structure to study the behaviour of tunnel lining and performance of floating slab track. From the results, it is found that the base isolator performed very well in reducing the seismic response of acceleration on floating slab track with a reduction of 17% from the actual acceleration. Moreover, the results have shown a slight reduction of tunnel lining internal forces if a base isolator is used on floating slab track. It can be concluded that a base isolator on floating slab track tunnel is recommended for human comfort and safety under earthquake effects. 2016-05 Thesis http://eprints.utm.my/id/eprint/78837/ http://eprints.utm.my/id/eprint/78837/1/NorazahArjunaMFKA2016.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:106371 masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Arjuna, Norazah Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator
description	Earthquake is one of the biggest natural phenomena that causes damage and loss of life. Malaysia is prone to seismic tremors originating from nearby countries such as Indonesia and Philippines. The Sumatran earthquake in 2005 has raised questions about the structural stability and integrity in Malaysia including tunnel structures, given the substantial seismic effect from Sumatran earthquake. In addition, the waves that pass through soil medium would affect the behaviour of subsurface structure in tunnels. The scope of this study focused on Klang Valley Mass Rapid Transit (KVMRT Sungai Buloh – Kajang Line) in Malaysia. Rubber based isolators were inserted underneath the floating slab track of the tunnel to study the effectiveness of the isolated installation under earthquake loading and to identify the functions of the base isolator system used for the floating slab track of a tunnel. The finite element analysis of the individual base isolator conforms to the experimental laboratory testing under compression and shear loads. In order to verify the results of structural analysis, the finite element analysis was carried out for the base isolator under static analysis approach. Meanwhile, the tunnel floating slab track was modelled using finite element method (FEM) under dynamic analysis approach. Time history analysis was performed with peak ground acceleration to the structure to study the behaviour of tunnel lining and performance of floating slab track. From the results, it is found that the base isolator performed very well in reducing the seismic response of acceleration on floating slab track with a reduction of 17% from the actual acceleration. Moreover, the results have shown a slight reduction of tunnel lining internal forces if a base isolator is used on floating slab track. It can be concluded that a base isolator on floating slab track tunnel is recommended for human comfort and safety under earthquake effects.
format	Thesis
qualification_level	Master's degree
author	Arjuna, Norazah
author_facet	Arjuna, Norazah
author_sort	Arjuna, Norazah
title	Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator
title_short	Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator
title_full	Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator
title_fullStr	Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator
title_full_unstemmed	Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator
title_sort	earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2016
url	http://eprints.utm.my/id/eprint/78837/1/NorazahArjunaMFKA2016.pdf
_version_	1747818083455598592

Earthquake effects on tunnel floating slab track and lining with slab bearing and base isolator

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