TY - GEN
T1 - Model optimization for seismic analysis of tunnels based on response displacement method
AU - Chen, Zhiyi
AU - Yu, Haitao
AU - Yuan, Yong
PY - 2011
Y1 - 2011
N2 - A beam-spring model, which takes account of tension, shear, and bending behavior of tunnel joints, is proposed in this paper. The model fully considers the characteristics of seismic responses for shield tunnels. Seismic analyses are carried out in longitudinal and transverse directions of a certain shield tunnel in the city of Shanghai through the response displacement methods. The analytical results show that, if compared with the traditional computational model, the optimized beam-spring model may give not only inner force responses of the lining, but also seismic response indexes of segment stress, joint deformation, bending capacity. Therefore the usability and safety of the tunnel during the earthquake and after the earthquake may fully be estimated. It may provide references to the seismic design and evaluation for tunnel safety.
AB - A beam-spring model, which takes account of tension, shear, and bending behavior of tunnel joints, is proposed in this paper. The model fully considers the characteristics of seismic responses for shield tunnels. Seismic analyses are carried out in longitudinal and transverse directions of a certain shield tunnel in the city of Shanghai through the response displacement methods. The analytical results show that, if compared with the traditional computational model, the optimized beam-spring model may give not only inner force responses of the lining, but also seismic response indexes of segment stress, joint deformation, bending capacity. Therefore the usability and safety of the tunnel during the earthquake and after the earthquake may fully be estimated. It may provide references to the seismic design and evaluation for tunnel safety.
KW - beam-spring model
KW - model optimation
KW - response displacement method
KW - seismic analysis of the tunnel
UR - http://www.scopus.com/inward/record.url?scp=79959655242&partnerID=8YFLogxK
U2 - 10.1109/ICETCE.2011.5776387
DO - 10.1109/ICETCE.2011.5776387
M3 - Conference contribution
AN - SCOPUS:79959655242
SN - 9781457702907
T3 - 2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings
SP - 5197
EP - 5200
BT - 2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings
T2 - 2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011
Y2 - 22 April 2011 through 24 April 2011
ER -