Embedded foundation in layered soil under dynamic excitations

Jaya, K. P.; Prasad, A. Meher

doi:10.1016/s0267-7261(02)00032-5

Cited by 42 publications

(8 citation statements)

References 11 publications

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“…Significant advancement took place in developing theoretical solutions [Hadjian (2002), Jaya and Prasad (2002), Wolf and Deeks (2004), Pradhan et al (2004) to name a few] to the problems of the foundation vibrations resting on a nonhomogeneous soil layer. The applicability of these methods was verified in most of the cases by comparing the theoretical results either with other model analyses or with laboratory investigations.…”

Section: List Of Symbolsmentioning

confidence: 99%

Dynamic Response of the Foundations Resting on a Two-layered Soil Underlain by a Rigid Layer

2012

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The present experimental investigations study the effect of layering over rigid base on the dynamic behavior of foundation under vertical mode of vibration. Model block vibration tests were conducted on a rigid surface footing resting on different layered soil systems underlain by rigid base. The rigid base was used to simulate the presence of bedrock.The tests were carried out in a pit of size 2.0 m 9 2.0 m 9 1.9 m (deep) using a concrete footing of size 0.4 m 9 0.4 m 9 0.1 m. A rotating mass type mechanical oscillator was used for inducing vibration in vertical direction. Different layered soil systems were prepared within the total depth of 1,200 mm over the rigid base. Locally available gravel and fly ash were used to form different layered soil systems. In total, 132 nos. model block vibration tests in vertical mode were conducted for different layering and loading combinations. The experimentally obtained results are also compared with the results obtained from the analysis by mass-spring-dashpot and equivalent half-space theory.

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Section: List Of Symbolsmentioning

confidence: 99%

Dynamic Response of the Foundations Resting on a Two-layered Soil Underlain by a Rigid Layer

2012

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“…In this study, the direct method was used to carry out dynamic analysis of soil-structure models. In the direct method, the response of the soil and structure is determined simultaneously by analysing the idealised soilstructure system in a single step [8]. The soil with the superstructure is modelled until the artificial boundary (Fig.…”

Section: Methodology Of Ssi Analysismentioning

confidence: 99%

Investigation of the contribution of soil conditions to damage and failure of RC structures in Adapazarı

Çağlar¹,

Garip²,

Turan³

2016

APJES

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During the 17 th August 1999 Marmara earthquake, the soil has played important role as a contributing factor in the failure of Reinforced Concrete (RC) moment resisting frame buildings built in Adapazari. In this study, the differences of contributing effects on the filure of RC buildings which were built in the soft soil such as Adapazari downtown and stiff soil such as Maltepe has been investigated. Various two dimensional soilstructure models are formed with the simulations of buildings, which had some irregularities suh as soft story, weak stoey and short column effect, and soil properties of Adapazari downtown and Maltepe. The dynamic analysis of the soil-structure models subjected to Marmara earthquake was carried out using SAP2000 software packet program. The outcomes of lateral top displacement of SSI models with respect to soil conditions were presented as graphs and the results were discussed.

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“…2-9b for the rocking DOF. The approach has been practised for both surface and embedded foundations by Veletsos and Nair (1974), Meek and Wolf (1992a, 1992b and Wolf and Meek (1993) as well as Jaya and Prasad (2002) and Wolf and Preisig (2003) for layered soil.…”

Section: Simplified Ground Modelsmentioning

confidence: 99%

Dynamic Properties of OffshoreWind Turbine Foundations

Damgaard¹

2014

Dynamic Properties of OffshoreWind Turbine Foundations

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Part I deals with full-scale testing of wind turbines installed on monopile, bucket and gravity base foundations. The dynamic properties in terms of natural frequencies and damping ratios are in focus based on so-called "rotor-stop" tests and operational modal identification techniques. Part II deals with the formulation and application of lumped-parameter models useful for fully coupled aero-hydro-elastic simulations. Gray box modelling based on the findings from Part I is used to evaluate to what extent the soil-foundation interaction influences the dynamic behaviour of the wind turbine. The thesis is based on the following collection of scientific papers and reports written by the author of the present thesis and in cooperation with other authors: Damgaard, M. (2011). An introduction to operational modal identification of offshore wind turbine structures. DCE Technical Memorandum No. 13, Aalborg University.

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Embedded foundation in layered soil under dynamic excitations

Cited by 42 publications

References 11 publications

Dynamic Response of the Foundations Resting on a Two-layered Soil Underlain by a Rigid Layer

Dynamic Response of the Foundations Resting on a Two-layered Soil Underlain by a Rigid Layer

Investigation of the contribution of soil conditions to damage and failure of RC structures in Adapazarı

Dynamic Properties of OffshoreWind Turbine Foundations

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