Techno Press
Techno Press

Earthquakes and Structures
  Volume 3, Number 3, June-August 2012 , pages 563-580
DOI: https://doi.org/10.12989/eas.2012.3.3.580
 


Efficient and accurate domain-truncation techniques for seismic soil-structure interaction
Murthy Guddati and Siddharth Savadatti

 
Abstract
    We modify the formulation of a recently developed absorbing boundary condition (ABC), the perfectly matched discrete layers (PMDL), to incorporate the excitation coming from the exterior such as earthquake waves. The modified formulation indicates that the effect of the exterior excitation can be incorporated into PMDL ABCs (traditionally designed to treat only interior excitation) simply by applying appropriate forces on the nodes connected to the first PMDL layer. Numerical results are presented to clearly illustrate the effectiveness of the proposed method.
 
Key Words
    perfectly matched discrete layer; absorbing boundary; soil-structure interaction; seismic domain truncation
 
Address
Murthy Guddati: Department of Civil, Construction and Environmental Engineering, North Carolina State University, Raleigh, NC 27695, USA; Siddharth Savadatti: Faculty of Engineering, University of Georgia, Athens, GA 30605, USA
 

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