2013
DOI: 10.1002/eqe.2340
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Site response analysis with two‐dimensional numerical discontinuous deformation analysis method

Abstract: The capability of the numerical discontinuous deformation analysis (DDA) method to perform site response analysis is tested. We begin with modeling one-dimensional shear wave propagation through a stack of horizontal layers and compare the obtained resonance frequency and amplification with results obtained with SHAKE. We use the algorithmic damping in DDA to condition the damping ratio in DDA by changing the time step size and use the same damping ratio in SHAKE to enable meaningful comparisons. We obtain a g… Show more

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Cited by 19 publications
(15 citation statements)
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References 18 publications
(29 reference statements)
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“…In Bao et al (2014) resonance frequency was calculated by numerical discontinuous deformation analysis (DDA) method and measured as well. DDA method to perform site response analysis of free standing columns can be found in that study.…”
Section: Introductionmentioning
confidence: 99%
“…In Bao et al (2014) resonance frequency was calculated by numerical discontinuous deformation analysis (DDA) method and measured as well. DDA method to perform site response analysis of free standing columns can be found in that study.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, Bao et al . recommended the block size should also to be smaller than 1/16 for better resolved wave shape in dealing with one‐dimensional S‐wave problems.…”
Section: Discussionmentioning
confidence: 99%
“…Time step is another significant factor, which independently affects the solution accuracy from the block size . The time step size must be smaller than the upper limit decided by Eq.…”
Section: Discussionmentioning
confidence: 99%
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“…Doolin and Sitar [16] studied the time integration of DDA and noted that the algorithmic damping may be important considering the penalty formulation. Bao et al [17] obtained an equivalent damping ratio from the algorithmic damping in DDA using the cantilever beam model. Overall, the damping researches of DDA are always in progress.…”
Section: Introductionmentioning
confidence: 99%