Numerical modelling of centrifuge tests on tunnel–soil systems

Abate, Glenda; Massimino, Maria Rossella; Maugeri, M.

doi:10.1007/s10518-014-9703-0

Cited by 44 publications

(15 citation statements)

References 28 publications

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“…In order to evaluate the effective ground motion at the foundation level it is necessary to investigate Dynamic Soil-Structure Interaction (DSSI). Since the 1970s, DSSI has been investigated by means of theoretical approaches [Veletsos et al, 1974;Gazetas, 1983;Gazetas et al, 1991;Chatterjee et al, 2008;Voyagaki et al, 2013;Renzi et al, 2013], numerical modeling [Martin et al, 2001;Gazetas et al, 2004;Gajan et al, 2005Gajan et al, , 2008Massimino, 2005;Maugeri et al, 2012;Calvi et al;Abate et al, 2015] as well as field and laboratory tests àCombescure et al, 2000;Faccioli et al, 2001;Prasad et al, 2004;Kutter et al, 2006;Ueng et al, 2006;Bienen et al, 2007;Ugalde et al, 2007;Anastasopoulos et al, 2013]. Particularly, numerical modeling of full-coupled soil-structure systems represent the most precious approach, being the nearest to the actual configurations to be analyzed [Abate et al, 2016[Abate et al, , 2017c.…”

Section: Introductionmentioning

confidence: 99%

Dynamic behaviour of coupled soil-structure systems by means of FEM analysis for the seismic risk mitigation of INGV building in Catania (Italy)

Massimino¹,

Abate²,

Corsico³

et al. 2018

Annals of Geophysics

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Seismic design of new structures, as well as retrofitting and/or improving of existing ones should be definitely considered a multidisciplinary subject, which depends on many factors, such as: local site effects and the dynamic interaction between the foundation soil and the structure. The accurate investigation on the structure and the surrounding soil is the first fundamental step for a realistic evaluation of the structure seismic performance. The present paper deals with the Dynamic Soil Structure Interaction (DSSI) analysis concerning the INGV (National Institute of Geophysics and Volcanology) building in Catania, by means of a FEM 2D modeling. The building is a prestigious masonry structure situated in an area characterized by a high seismic hazard. Several accelerograms scaled at the same PHA, with reference to the estimated seismicity of Catania, have been adopted. Soil properties were carefully investigated by means of static and dynamic in-situ and laboratory tests. Many investigations were also performed on the structure. Equivalent linear visco-elastic constitutive models have been adopted both for the soil and the structure. For considering soil nonlinearity, degraded shear modula (G) and increased soil damping ratios (D) have been evaluated for all the involved soil layers, according to two different approaches. Firstly, soil nonlinearity has been modeled basing on the EC8 [2003] suggestions; secondly, it has been modeled choosing the values of G and D according to the effective strain levels obtained for each soil layer and for each different input, by means of an iterative sub-routine. The dynamic response of the system has been analyzed in the time and frequency domains. Results are presented in terms of: acceleration amplification factors, Fourier and response spectra, amplification functions and shear forces per floor. The main goals of the paper are: i) to investigate the acceleration profiles along the soil and the structure considering and not considering the DSSI; ii) to investigate the soil filtering effect in terms of predominant frequency considering and not considering the DSSI; iii) to compare the obtained results with the ones given by a simpler 1D free-field soil analysis; iv) to compare the soil amplification factors and the response spectra obtained by 1D and 2D models with that by the Italian technical code [NTC, 2008]; v) to highlight the influence of DSSI in the seismic response of the structure; vi) to evaluate the influence of different modeling of soil nonlinearity on the dynamic response of the soil and structure.

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Section: Introductionmentioning

confidence: 99%

Dynamic behaviour of coupled soil-structure systems by means of FEM analysis for the seismic risk mitigation of INGV building in Catania (Italy)

Massimino¹,

Abate²,

Corsico³

et al. 2018

Annals of Geophysics

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“…Theoretical or numerical approaches (e.g. [1][2][3][4][5][6][7][8][9][10]) are powerful tools even if the obtained results are affected by the reliability of the data and by the analysis assumptions. Monitoring of full-scale structures is frequently characterized by unknown boundary conditions and requires a large monitoring period which is a rare occurrence (e.g.…”

Section: Introductionmentioning

confidence: 99%

Some Experimetnal Evidences on Dynamic Soil-Structure Interaction

Massimino¹,

Biondi²

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Accounting for deformation of soil and foundation, full-coupled soilstructure shaking table tests [5][6][7][8] and numerical analysis [9][10][11][12] were conducted and gained deeper insight into the seismic performance of structures. With soil intervention, vibration period of the whole model extends and thus influences authentic seismic responses of superstructures.…”

Section: Jiang and Xumentioning

confidence: 99%

A shaking table real-time substructure experiment of an equipment–structure–soil interaction system

Zhang

Jiang

2017

Advances in Mechanical Engineering

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Based on branch substructure method, this article deduces motion equation of an equipment-structure-soil interaction system. The equation is converted and applied to a shaking table real-time substructure experiment. The equipmentstructure system is adopted as experimental substructure loaded by the shaking table. Meanwhile, finite element model of soil is adopted as numerical substructure after modal reduction. An equipment-structure-soil interaction scale model is designed and tested using shaking table under different earthquake records. Comparison shows good agreement of results of experimental and finite element methods. This work also proves validity and accuracy of the proposed experimental method.

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Numerical modelling of centrifuge tests on tunnel–soil systems

Cited by 44 publications

References 28 publications

Dynamic behaviour of coupled soil-structure systems by means of FEM analysis for the seismic risk mitigation of INGV building in Catania (Italy)

Dynamic behaviour of coupled soil-structure systems by means of FEM analysis for the seismic risk mitigation of INGV building in Catania (Italy)

Some Experimetnal Evidences on Dynamic Soil-Structure Interaction

A shaking table real-time substructure experiment of an equipment–structure–soil interaction system

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