Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreading

The Mataquito Bridge is located at the north of the Mw 8. 8 Maule earthquake epicenter and it was selected for this study because clear evidence of liquefaction induced lateral spreading was detected at the site and the data available was enough to generate a numerical model. The numerical model was...

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Autores principales:	Gutiérrez,Álvaro, Ledezma,Christian
Lenguaje:	English
Publicado:	Universidad Católica de la Santísima Concepción 2017
Materias:	liquefaction piles bridges PM4SAND
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132017000100002
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spelling	oai:scielo:S0718-281320170001000022017-07-19Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreadingGutiérrez,ÁlvaroLedezma,Christian liquefaction piles bridges PM4SAND The Mataquito Bridge is located at the north of the Mw 8. 8 Maule earthquake epicenter and it was selected for this study because clear evidence of liquefaction induced lateral spreading was detected at the site and the data available was enough to generate a numerical model. The numerical model was developed in the geotechnical software FLAC and includes advanced soil constitutive models, such as PM4SAND and UBCHYST, which are validated in dynamic condition. Furthermore, the soil-structure interaction is considered with the pile elements available in FLAC, via shear and normal springs. The acceleration history applied in the dynamic condition was registered in Rapel station. The calibration process considered in this research was conducted with SPT results and geotechnical correlations. Several numerical models were solved to obtain the parameters included in the soil constitutive models and in the pile coupling springs. The results include pile lateral displacement and the bending moments due to the earthquake. The residual lateral displacements are about 10 cm and concentrated at the top of the pile. Besides, the pore water pressure increased during the seismic motion and the liquefaction was reached before the peak acceleration.info:eu-repo/semantics/openAccessUniversidad Católica de la Santísima ConcepciónObras y proyectos n.21 20172017-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132017000100002en10.4067/S0718-28132017000100002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	liquefaction piles bridges PM4SAND
spellingShingle	liquefaction piles bridges PM4SAND Gutiérrez,Álvaro Ledezma,Christian Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreading
description	The Mataquito Bridge is located at the north of the Mw 8. 8 Maule earthquake epicenter and it was selected for this study because clear evidence of liquefaction induced lateral spreading was detected at the site and the data available was enough to generate a numerical model. The numerical model was developed in the geotechnical software FLAC and includes advanced soil constitutive models, such as PM4SAND and UBCHYST, which are validated in dynamic condition. Furthermore, the soil-structure interaction is considered with the pile elements available in FLAC, via shear and normal springs. The acceleration history applied in the dynamic condition was registered in Rapel station. The calibration process considered in this research was conducted with SPT results and geotechnical correlations. Several numerical models were solved to obtain the parameters included in the soil constitutive models and in the pile coupling springs. The results include pile lateral displacement and the bending moments due to the earthquake. The residual lateral displacements are about 10 cm and concentrated at the top of the pile. Besides, the pore water pressure increased during the seismic motion and the liquefaction was reached before the peak acceleration.
author	Gutiérrez,Álvaro Ledezma,Christian
author_facet	Gutiérrez,Álvaro Ledezma,Christian
author_sort	Gutiérrez,Álvaro
title	Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreading
title_short	Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreading
title_full	Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreading
title_fullStr	Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreading
title_full_unstemmed	Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreading
title_sort	dynamic modeling of mataquito bridge affected by liquefaction - induced lateral spreading
publisher	Universidad Católica de la Santísima Concepción
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132017000100002
work_keys_str_mv	AT gutierrezalvaro dynamicmodelingofmataquitobridgeaffectedbyliquefactioninducedlateralspreading AT ledezmachristian dynamicmodelingofmataquitobridgeaffectedbyliquefactioninducedlateralspreading
_version_	1714203340354617344

Dynamic modeling of Mataquito Bridge affected by liquefaction - induced lateral spreading

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