›› 2009, Vol. 30 ›› Issue (11): 3505-3511.

• Numerical Analysis • Previous Articles     Next Articles

Analysis of aseismic capability and influential factors for rigid pile composite foundation-superstructure dynamic interaction system

XIA Dong-zhou1，HE Yi-bin1，LIU Jian-hua2   

  1. 1. College of Civil Engineering, Hunan University, Changsha 410082, China; 2. School of Highway Engineering, Changsha University of Science and Technology, Changsha 410076, China
  • Received:2008-11-24 Online:2009-11-10 Published:2010-01-07

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Abstract:

Through considering nonlinear dynamic soil model, reasonable artificial-boundary and coupling damping model, a 3-D finite element dynamic model of rigid pile composite foundation-superstructure interaction system, is established. Through calculations the different seismic responses of the structure with rigid pile composite foundation and with common pile foundation are compared. At the same time, the influential factors and aseismic capability for rigid pile composite foundation is studied by considering soil modulus and soil layer, embedment depth, pile length and pile diameter, sand-gravel cushion thickness and modulus, structure characteristic, etc. All the results and conclusions will provide theoretical basis for engineering design and practice.

Key words: rigid pile composite foundation, coupling damping model, nonlinearity, aseismic capability

CLC Number: 

  • TU 473
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