Evaluation of the frequency and time domain soilstructure interaction analysis methods against the hualien. Soilstructureinteraction analysis in time domain sciencedirect. Dynamic infinite elements for soilstructure interaction. The commonly used boundary the present work employs the direct time domain bspline bem for 3d elastodynamic analysis and presents an efficient implementation of rigid bodies of arbitrary shape in contact with, or. Box 8022, zurich, switzerland received 6 october 1987 381 the procedures to perform nonlinear soil structure interaction analysis in the time domain are summarized. Development and deployment of analysis methodologies suitable for computing the response of deeplyembedded power reactors, including nonlinear time domain. In this study, the soil is modelled as a linear elastic solid, however, the methods developed can be adapted to include the effects of soil non. Nonlinear soil structure interaction analysis based on coupling of febe method in time domain 12 has applied a rigid surface foundation for the bspline direct time domain bem. Earthquake wavesoilstructure interaction analysis of. For the purpose of the analysis, simplified idealizations made in the theory of finite elements are used. However, the method is inherently linear and a better strategy is to employ the nonlinear time domain analysis method, which is computer intensive but. Nonlinear soilstructure interaction analysis based on coupling of febe method in time domain 12 has applied a rigid surface foundation for the bspline direct time domain bem. Soil structure interaction analysis in the time domain a thesis submitted to the graduate division of the university of haw aii in partial fulfillment of the requirements for the degree of master of science in civil engineering august 2006 by sennghalee thesis committee. Dynamic wavesoilstructure interaction analysis in time.
Soilstructure interaction analysis in time domain by john p. Soil structure interaction analysis methods state of art. Abstract a new numerical procedure is proposed for the analysis of three. Box 8022, zurich, switzerland received 6 october 1987 381 the procedures to perform nonlinear soilstructureinteraction analysis in the time domain are summarized. Soil structure interaction effects on pushover analysis of. Seismic soilstructure interaction in the time domain core. Effect of soilstructure interaction on seismic performance. Wolf, 97808229740, available at book depository with free delivery worldwide. In order to measure the effect of ssi on the push over analysis of existing piers. The transient analysis of chimneyraft soil system is carried out using lsdyna software. Nuclear engineering and design 111 1989 3893 northholland, amsterdam soil structure interaction analysis in time domain john p.
Overview of soilstructure interaction principles jonathan p. Besides the direct method where local frequencyindependent boundary conditions are enforced on the artificial. Soilstructure interaction modelling for piles in performancebased seismic design. To establish a firm base for the classification of the methods, the objective and the significant features of soilstructureinteraction analysis described in the. Quite a few methods of modeling and analysis exist to anticipate the real. Yun, timedomain soilstructure interaction analysis in twodimensional medium based on analytical frequencydependent infinite elements, int. Pdf developments in dynamic soilstructure interaction pp 123 cite as. This paper proposes a direct threedimensional 3d numerical method in time domain for seismic soilstructure interaction ssi analysis of spatial grid structure. The scale effect resulting from the small scale model is always coupled with. Nonlinear seismic soilstructure interaction ssi analyses are often completed using the equivalent linear frequency domain analysis method as it is simple to use and computationally efficient. A walk through time past, present, and future james j. Because of the limitations of testing facilities and techniques, the seismic performance of soil structure interaction ssi system can only be tested in a quite small scale model in laboratory. Perfectly matched discrete layers with analytical wavelengths. Because of the limitations of testing facilities and techniques, the seismic performance of soilstructure interaction ssi system can only be tested in a quite small scale model in laboratory.
This standard, which is currently under revision, provides guidance on linear seismic soilstructureinteraction ssi analysis of nuclear facilities using deterministic and probabilistic methods. Request pdf dynamic wavesoilstructure interaction analysis in time domain in recent papers zhang x, wegner jl, haddow, jb. Soilstructureinteraction analysis in time domain prenticehall international series in civil engineering and engineering mechanics prentice hall series in solid state physical electronics. Time domain earthquake response analysis method for 2d soilstructure interaction systems721 where,8 where cs, cp, and are wave velocities for swave, pwave and the mean value of the lth rayleigh wave l 1. The procedures to perform nonlinear soil structure interaction analysis in the time domain are summarized. Nonlinear time domain nltd structural material and geometric nonlinearities gapping and sliding at the soilstructure interface base isolation, fsi, etc. Time domain earthquake response analysis method for 2d. Dynamic soil structure interaction analysis program dssia3d in this study and is used for investigating the response of tall buildings in both the time domain and frequency domain. Soilstructure interaction analysis in the time domain a thesis submitted to the graduate division of the university of haw aii in partial fulfillment of the requirements for the degree of master of science in civil engineering august 2006 by sennghalee thesis committee. Comparative study of timedomain versus frequencydomain seismic soilstructure interaction analysis of pressurized water reactor containment building. Request pdf timedomain soilstructure interaction analysis for nuclear facilities seismic analysis of nuclear power plants is routinely carried out using. Seismic soilstructure interaction studies on tall chimneys.
Dynamic wavesoilstructure interaction analysis in time domain. A technique for modeling transient wave propagation in unbounded media is extended and applied to seismic soilstructure interaction analysis in the. The bounding surface plasticity model is implemented to model the near field. Freedman and keer 1972 studied the response of a body resting on the surface of a transversely isotropic halfplane and presented exact solutions in terms of dual integral equations. Department of civil and environmental engineering stanford university a methodology for nonlinear soilstructure interaction effects using timedomain analysis techniques by ronaldo i. Numerical investigation a set of numerical formulations for advanced analysis of soilstructure interaction is developed by many researchers 46, 47, 50, 99, 100.
Comparative study of timedomain versus frequency domain. Dynamic analysis of partially embedded structures considering. Survey and classification of computational approaches in soil. Many soilstructure interaction problems involve studies of single or multiple rigid bodies of arbitrary shape and soil media. Example applications to actual soil structure interaction problems are also given to demonstrate the capability and versatility of the present methodology.
The scale effect resulting from the small scale model is always. Soil structure interaction analysis in time domain author. The slab provided for all storeys are idealized as three dimensional four nodded shell elements. Comparative study of time domain versus frequency domain seismic soil structure interaction analysis of pressurized water reactor containment building. Timedomain soilstructure interaction analysis using the scaled boundary. Timedomain soilstructure interaction analysis of nuclear. Dynamic wavesoilstructure interaction analysis in the time. Soil structure interaction analysis in time domain prentice hall international series in civil engineering and engineering mechanics wolf, john p. Dynamic wavesoilstructure interaction analysis in the. Analysis of soil structure interaction in framed structure. In this study, it is examined at first the difference between the frequency domain analysis and the time domain analysis. Soilstructure interaction response to high amplitude forced vibration d. A technique for modeling transient wave propagation in unbounded media is extended and applied to seismic soilstructure interaction analysis in the time domain. Fast nonlinear seismic soilstructure interaction ssi analysis in complex frequency domain technical note dan m.
Nuclear engineering and design 111 1989 3893 northholland, amsterdam soilstructureinteraction analysis in time domain john p. First, a finite element model including soil, foundation and typical spatial grid structure is developed. Three dimensional soilstructurewave interaction analysis in time domain. Especially for longspan bridge, a smaller tested model is required when ssi phenomenon is considered in the physical test.
Soilstructureinteraction analysis in time domain prentice hall international series in civil engineering and engineering mechanics wolf, john p. Three dimensional soilstructurewave interaction analysis. Soilstructure interaction ssi analysis is a key component of the risk assessment calculations because it influences demands on structural components and floor spectra with which equipment vulnerability is judged. Wang, 2000 35 have introduced a direct time domain bemfem formulation for 3d soil structure interaction analysis. Effects on displacementbased pushover analysis initial seismic demand freefield. Nonlinear seismic soil structure interaction ssi analyses are. Dynamic wavesoilstructure interaction analysis in the time domain dynamic wavesoilstructure interaction analysis in the time domain wegner, j.
In dynamic soil structure interaction problems, analysis methods can be classified into three groups. The effect of soil structure interaction on a four storeyed, two bay frame resting on pile and embedded in the cohesive soil is examined in this paper. The system for analysis of soil structure interaction sassi lysmer et al. Fast nonlinear seismic soil structure interaction ssi analysis in complex frequency domain technical note dan m. A time domain analysis procedure and method for seismic soilstructure interaction analysis are introduced in this work. A time domain analysis procedure and method for seismic soil structure interaction analysis are introduced in this work. Frequencydomain ssi analysis is routinely performed in the nuclear industry of the united states. Time domain earthquake response analysis method for 2d soil.
Further improvement and a large number of results were obtained by. Reference b23 outlines an approach when performing a time domain analysis but matching strain compatible soil properties. S demonstration of time domain 2d model demonstration of the explicit time domain capabilities using a 2d model of the calcine disposition project cdp process in the existing iwtu cells this demonstrates the modeling capabilities of explicit time domain codes to model contact and allow waves to travel through soil and structure during. The complete dynamic analysis is carried out in the time domain using newmark.
Soil structure interaction models therefore have to account for, as best they can, the transmission of waves through the boundaries of the soil model. Soilstructure interaction ssi analysis is generally a required step in the calculation of seismic demands in nuclear structures, and is currently performed using linear methods in the frequency. To establish a firm base for the classification of the methods, the objective and the significant features of soil structure interaction analysis described in the. Appendix b nonlinear time domain soil structure interaction. Johnson and associates, 7 essex court, alamo, ca 94507 seismic soilstructure interaction ssi analysis of nuclear power plant npp structures has evolved significantly over the last 50 years. Demonstration of time domain 2d model demonstration of the explicit time domain capabilities using a 2d model of the calcine disposition project cdp process in the existing iwtu cells this demonstrates the modeling capabilities of explicit time domain codes to model contact and allow waves to travel through soil and structure during. Missouri university of science and technology scholars mine. In the context of this standard, nonlinear soil structure interaction ssi can be used to provide either 1 element forces and.
Analysis and design of structures subjected to arbitrary dynamic loadings especially earthquakes have been studied during past decades. Modeling of soil structure interaction, ssi the soil surrounding the foundation of the pier is modeled by springs which has frequency independent stiffness in space. Site response analysis is a precursor to soilstructure interaction analysis, which is an essential component in the seismic analysis of safetyrelated nuclear structures. Nonlinear soilstructure interaction analysis based on. Soilstructureinteraction analysis in time domain john p. The procedures to perform nonlinear soilstructureinteraction analysis in the time domain are summarized. Recent advances in nonlinear soilstructure interaction. Many soil structure interaction problems involve studies of single or multiple rigid bodies of arbitrary shape and soil media. The soil structure interaction activity is divided into two parts. Soil structure interaction analysis in time domain by john p. This method has been applied to soilstructure interaction problems both in time and frequency domain by wolf and song 34, 35. The nonlinearity is restricted to the structure and possibly an adjacent irregular soil region. Combinedmodelsareusedinsoilstructureinteractionanalysis. A discontinuous galerkin method for seismic soilstructure.
Free vibration analysis of a threedimensional soilstructure system. Soilstructureinteraction analysis in time domain prentice. A new appendix has been added to the forthcoming edition of asce standard 4 to provide guidance for timedomain, nonlinear ssi nlssi analysis. Substructure approach in soil structure interaction.
Frequency domain ssi analysis is routinely performed in the nuclear industry of the united states. Application of 3d time domain method for seismic soil. A new numerical procedure is proposed for the analysis of three. Application of 3d time domain method for seismic soilstructure. As a result, it was confirmed that frequency domain equivalent linear method is able to be applied to dynamic response analysis of steel structure, when the. This includes the selection of the soil model, the far field model, the structural model and the soilstructure interaction analysis method. Example applications to actual soilstructure interaction problems are also given to demonstrate the capability and versatility of the present methodology.
Soilstructureinteraction analysis in time domain nuclear. Soilstructureinteraction analysis in time domain prentice hall international series in civil engineering and engineering mechanics. Earthquake wavesoilstructure interaction analysis of tall. Evaluation of the frequency and time domain soilstructure. The transient analysis of chimneyraftsoil system is carried out using lsdyna software.
Soilstructureinteraction analysis in time domain infoscience. Department of civil and environmental engineering stanford university a methodology for nonlinear soil structure interaction effects using time domain analysis techniques. Soilstructure interface effects on dynamic interaction analysis of reinforced concrete lifelines y. Seismic soilstructure interaction in the time domain. Timedomain soilstructure interaction analysis for nuclear. Then, the precisions of equivalent viscousspring artificial boundary element vsabe and size effect of site soil region. In dynamic soilstructure interaction analysis, usually the higher modes of the structure. The equivalent linear approach in frequency domain elfd is the current state of practice for performing seismic soilstructure interaction ssi analysis of. In the second phase, seismic soilstructure interaction analysis of the structure is carried out for the freefield excitation determined in phasei. In practice, the effects of soilstructure interaction on the dynamic response of structures are usually neglected. In the context of this standard, nonlinear soilstructure interaction ssi can be used to provide either 1 element forces and.
Wang, 2000 35 have introduced a direct time domain bemfem formulation for 3d soilstructure interaction analysis. This method is rarely used in practice as it involves large computation and is very complex to analyze. This includes the selection of the soil model, the far field model, the structural model and the soil structure interaction analysis method. Oct 01, 2005 in recent papers zhang x, wegner jl, haddow, jb. In this study, the effect of soilstructure interaction on the dynamic response of structures has been examined. The unbounded soil far field must remain linear in this formulation. Timedomain soilstructure interaction analysis using the. Soil structure interaction ssi analysis is a key component of the risk assessment calculations because it influences demands on structural components and floor spectra with which equipment vulnerability is judged. Illustration of direct analysis of soil structure interaction with the help of finite elements. Soilstructureinteraction analysis in time domain john.
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