Influence of Different Defects on the Energy Bands for the Super Cell of a Defected Periodic Viaduct

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2013 by IJETT Journal
Volume-4 Issue-5                      
Year of Publication : 2013
Authors : Cheng-yong He , Li Lei

MLA 

Cheng-yong He , Li Lei. "Influence of Different Defects on the Energy Bands for the Super Cell of a Defected Periodic Viaduct". International Journal of Engineering Trends and Technology (IJETT). V4(5):2194-2204 May 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group.

Abstract

In this study, the influence of different defects on the energy bands for the super cell of a defected periodic viaduct (DPV) when considering the pile - soil - structure interaction is investigated. By developing a coupled boundary element method (BEM) model for the piles supporting the superstructure of the DPV , the compliances of the pile foundation can be obtained , combined with the transfer matrices for the beams and piers, the transfer matrix for each span of the viaduct can be determined. Then, the eigenvalue equation for the super cell of the DPV can be derived by utilizing the Bloch theorem , solution of which yields the energy bands of the super - cell. Num erical results show that some defects may give rise to the defect state for the super cell of the DPV.

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Keywords
Defected periodic viaduct (DPV); super - cell method ; the boundary element method (BEM); the pile - soil - structure interaction.