Effects of Dynamic Soil-Structure Interaction on Inelastic Behaviour of Mid-Rise Moment Resisting Buildings on Soft Soils

Far, H; Samali, B; Fatahi, B

Effects of Dynamic Soil-Structure Interaction on Inelastic Behaviour of Mid-Rise Moment Resisting Buildings on Soft Soils

Far, H

Samali, B

Fatahi, B

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Publisher:: Australian Earthquake Engineering Society
Publication Type:: Conference Proceeding
Citation:: AEES Conference 2010 - Australian Earthquake Engineering Society 2010 Conference, 2010, pp. 1 - 11
Issue Date:: 2010-01

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Field	Value	Language
dc.contributor.author	Far, H https://orcid.org/0000-0003-3480-6582	en_US
dc.contributor.author	Samali, B https://orcid.org/0000-0002-3426-7745	en_US
dc.contributor.author	Fatahi, B https://orcid.org/0000-0002-7920-6946	en_US
dc.contributor.editor	McCue, K	en_US
dc.contributor.editor	Anderson, S	en_US
dc.date	2010-11-26	en_US
dc.date.issued	2010-01	en_US
dc.identifier.citation	AEES Conference 2010 - Australian Earthquake Engineering Society 2010 Conference, 2010, pp. 1 - 11	en_US
dc.identifier.isbn	978-0-9807420-2-2	en_US
dc.identifier.uri	http://hdl.handle.net/10453/14149
dc.description.abstract	In this study, a ten storey moment resisting building frame, representing the conventional type of regular mid-rise building frames, resting on shallow foundation, is selected in conjunction with a clayey soil, representing subsoil class Ee, as classified in the AS 1170.4. The structural sections are designed after applying dynamic nonlinear time history analysis, based on both elastic method, and inelastic procedure using elastic-perfectly plastic behaviour of structural elements. The frame sections are modelled and analysed, employing Finite Difference Method using FLAC 2D software under two different boundary conditions: (i) fixed-base (no Soil-Structure Interaction), and (ii) considering Soil-Structure Interaction (SSI). Fully nonlinear dynamic analysis under influence of different earthquake records is conducted and the results of the two different cases for elastic and inelastic behaviour of the structural model are extracted and compared respectively. The results indicate that the lateral deflection increments for both cases are substantially dominating and can change the performance level of the structures from life safe to near collapse or total collapse. Therefore, conventional elastic and inelastic structural analysis methods assuming fixed-base structure may no longer be adequate to guarantee the structural safety. Therefore, considering SSI effects in seismic design of concrete moment resisting building frames resting on soft soil deposit is essential.	en_US
dc.publisher	Australian Earthquake Engineering Society	en_US
dc.relation.ispartof	AEES Conference 2010 - Australian Earthquake Engineering Society 2010 Conference	en_US
dc.relation.ispartof	Australian Earthquake Engineering Society Conference	en_US
dc.title	Effects of Dynamic Soil-Structure Interaction on Inelastic Behaviour of Mid-Rise Moment Resisting Buildings on Soft Soils	en_US
dc.type	Conference Proceeding
utslib.location	Perth, Australia	en_US
utslib.location.activity	Perth, Western Australia	en_US
utslib.for	090504 Earthquake Engineering	en_US
utslib.for	090501 Civil Geotechnical Engineering	en_US
utslib.for	0909 Geomatic Engineering	en_US
dc.location.activity	Perth, Western Australia	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access
pubs.consider-herdc	true	en_US
pubs.place-of-publication	Perth, Australia	en_US
pubs.publication-status	Published	en_US
pubs.start-date	2010-11-26	en_US

Abstract:

In this study, a ten storey moment resisting building frame, representing the conventional type of regular mid-rise building frames, resting on shallow foundation, is selected in conjunction with a clayey soil, representing subsoil class Ee, as classified in the AS 1170.4. The structural sections are designed after applying dynamic nonlinear time history analysis, based on both elastic method, and inelastic procedure using elastic-perfectly plastic behaviour of structural elements. The frame sections are modelled and analysed, employing Finite Difference Method using FLAC 2D software under two different boundary conditions: (i) fixed-base (no Soil-Structure Interaction), and (ii) considering Soil-Structure Interaction (SSI). Fully nonlinear dynamic analysis under influence of different earthquake records is conducted and the results of the two different cases for elastic and inelastic behaviour of the structural model are extracted and compared respectively. The results indicate that the lateral deflection increments for both cases are substantially dominating and can change the performance level of the structures from life safe to near collapse or total collapse. Therefore, conventional elastic and inelastic structural analysis methods assuming fixed-base structure may no longer be adequate to guarantee the structural safety. Therefore, considering SSI effects in seismic design of concrete moment resisting building frames resting on soft soil deposit is essential.

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http://hdl.handle.net/10453/14149