Mechanics in Engineering ›› 2016, Vol. 38 ›› Issue (1): 63-71.DOI: 10.6052/1000-0879-15-206

• Applied Research • Previous Articles     Next Articles

MULTIBODY DYNAMICS METHOD FOR TRANSVERSE SEISMIC RESPONSE ANALYSIS OF IMMERSED TUNNELS

Shen Zhongyuan1,2, Yu Haitao1,3, Yuan Yong4   

  1. 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
    2. School of Civil Engineering, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
    3. Key Laboratory of Geotechnical and Underground Engineering of Ministry, Tongji University, Shanghai 200092, China;
    4. State Laboratory of Disaster Reduction of Civil Engineering, Tongji University, Shanghai 200092, China
  • Received:2015-08-21 Revised:2015-09-17 Online:2016-01-15 Published:2015-10-10

Abstract:

The transverse seismic response analysis of immersed tunnels is the key for the seismic design of immersed tunnel structures. According to the structure characteristics of immersed tunnels and the dynamic shear performance of the joints, a multibody dynamic model composed of the multi-rigid body, the shear hinge, and the viscous damping hinge is proposed for immersed tunnels based on reasonable assumptions. The mathematical models and formulae of each element and the system are deduced based on the discrete time transfer matrix method (MS-DT-TMM) of the multibody dynamics theory. The new method is applied in an example. The results agree well with benchmark simulation results from the finite element method (FEM). This method could provide a rapid seismic analysis for the transverse dynamic response of immersed tunnels.

Key words:

immersed tunnels|seismic response|multibody dynamics|discrete time transfer matrix method|dynamic analysis

CLC Number: