Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia

Currently integral and continuous concrete box-girder bridges are becoming popular system in Malaysia. The problem occurs in such system is the rigidity connection of column and deck will lead to potential hinge failure. In this research, nonlinear seismic performance for this type of bridge was stu...

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Main Author:	Meldi, Meldi
Format:	Thesis
Language:	English
Published:	2011
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/25157/1/MeldiPFKA2011.pdf
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id	my-utm-ep.25157
record_format	uketd_dc
spelling	my-utm-ep.251572018-06-25T09:02:28Z Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia 2011-01 Meldi, Meldi TA Engineering (General). Civil engineering (General) Currently integral and continuous concrete box-girder bridges are becoming popular system in Malaysia. The problem occurs in such system is the rigidity connection of column and deck will lead to potential hinge failure. In this research, nonlinear seismic performance for this type of bridge was studied by applying soil – pile interaction and fixed base support system. The study covers numerical and experimental approach. The numerical approach has four steps as follows: (1) investigating material properties of integral prestressed concrete box-girder bridge; (2) modelling integral prestressed concrete boxgirder bridge by considering the interaction of structure, substructure and site condition; (3) studying the soil and pile interaction by applying bridge finite element modelling. (4) Validating experimental modelling with Finite element Modelling. As for the result validation, the four steps in the experimental approach involved: (1) scaling the integral concrete box-girder bridge by implementing Buckingham PI theorem; (2) setting the shaking table, shaker controller, LVDT, strain gauge and accelerometer; (3) analyzing finite element modelling of the scaled integral concrete box-girder bridge and (4) Validating the results by comparing the acceleration, displacement of structure response from instrument and finite element modelling. In this study, it was found that the behaviour and response of integral prestressed boxgirder bridge under seismic loading do not reach the yield level for low intensity earthquake. However, for moderate and high seismic intensity, the bridge response reached the yield level but still was under immediate occupancy level. Furthermore, the effect of soil-pile interaction for integral prestressed concrete box-girder bridge showed that the total displacement at the top of pier is 80% higher than fixed base support under longitudinal earthquake direction, while 87% higher under transversal direction. By conducting experimental shaking table test for integral concrete boxgirder bridge model, the seismic bridge response from finite element modelling (numerical approach) presented the approximate behaviour of integral concrete boxgirder bridge under earthquake loading. The findings in this research suggest that seismic loading effects should be considered in the design of integral prestressed concrete box-girder bridge due to higher displacement value compared to the one of the thermal loading. 2011-01 Thesis http://eprints.utm.my/id/eprint/25157/ http://eprints.utm.my/id/eprint/25157/1/MeldiPFKA2011.pdf application/pdf en public phd doctoral 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) Meldi, Meldi Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia
description	Currently integral and continuous concrete box-girder bridges are becoming popular system in Malaysia. The problem occurs in such system is the rigidity connection of column and deck will lead to potential hinge failure. In this research, nonlinear seismic performance for this type of bridge was studied by applying soil – pile interaction and fixed base support system. The study covers numerical and experimental approach. The numerical approach has four steps as follows: (1) investigating material properties of integral prestressed concrete box-girder bridge; (2) modelling integral prestressed concrete boxgirder bridge by considering the interaction of structure, substructure and site condition; (3) studying the soil and pile interaction by applying bridge finite element modelling. (4) Validating experimental modelling with Finite element Modelling. As for the result validation, the four steps in the experimental approach involved: (1) scaling the integral concrete box-girder bridge by implementing Buckingham PI theorem; (2) setting the shaking table, shaker controller, LVDT, strain gauge and accelerometer; (3) analyzing finite element modelling of the scaled integral concrete box-girder bridge and (4) Validating the results by comparing the acceleration, displacement of structure response from instrument and finite element modelling. In this study, it was found that the behaviour and response of integral prestressed boxgirder bridge under seismic loading do not reach the yield level for low intensity earthquake. However, for moderate and high seismic intensity, the bridge response reached the yield level but still was under immediate occupancy level. Furthermore, the effect of soil-pile interaction for integral prestressed concrete box-girder bridge showed that the total displacement at the top of pier is 80% higher than fixed base support under longitudinal earthquake direction, while 87% higher under transversal direction. By conducting experimental shaking table test for integral concrete boxgirder bridge model, the seismic bridge response from finite element modelling (numerical approach) presented the approximate behaviour of integral concrete boxgirder bridge under earthquake loading. The findings in this research suggest that seismic loading effects should be considered in the design of integral prestressed concrete box-girder bridge due to higher displacement value compared to the one of the thermal loading.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Meldi, Meldi
author_facet	Meldi, Meldi
author_sort	Meldi, Meldi
title	Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia
title_short	Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia
title_full	Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia
title_fullStr	Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia
title_full_unstemmed	Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia
title_sort	nonlinear seismic performance of integral prestressed concrete boxgirder bridge in malaysia
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2011
url	http://eprints.utm.my/id/eprint/25157/1/MeldiPFKA2011.pdf
_version_	1747815432668053504

Nonlinear seismic performance of integral prestressed concrete boxgirder bridge in Malaysia

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