TY - GEN
T1 - Static and dynamic experimental analysis of an immersion joint
AU - Xiao, Wenhao
AU - Yuan, Yong
AU - Taerwe, Luc
AU - Yu, Haitao
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China [grant number 51208296], [grant number 51478343]; the Shanghai Committee of Science and Technology [grant number 13231200503]. The authors acknowledge the support from the Fundamental Research Funds for the Central Universities; Shanghai Educational Development Foundation [grant number 13CG17]; the National Key Technology R&D Program [grant number 2012BAK24B04]. The authors also acknowledge the supports from the CSC PhD funding and the High-end Foreign Experts Program of Tongji University.
PY - 2016
Y1 - 2016
N2 - Tongji University Shanghai, China,As the weakest part of an immersed tunnel, the immersion joint is the key element in research in this field. Relatively large deformations and internal forces may be induced in the immersion joint subjected to various loading types. Based on a real project, the shear mechanical behaviour is investigated by large scale model test. To explore the performance of the immersion joint, compression-shear loads are applied on a tunnel segment in a specific test set-up. For the applied loading schemes, different levels of axial force, corresponding to the water depth of the joint, are considered as well as varying amplitudes of the shear force. Based on these results, both the static and dynamic shear stiffness of an immersion joint were analysed. The results of the test indicate that the static shear stiffness of the joint increases linearly with the axial force and the same trend is found for the dynamic one. Moreover, the dynamic stiffness is larger than the static one.
AB - Tongji University Shanghai, China,As the weakest part of an immersed tunnel, the immersion joint is the key element in research in this field. Relatively large deformations and internal forces may be induced in the immersion joint subjected to various loading types. Based on a real project, the shear mechanical behaviour is investigated by large scale model test. To explore the performance of the immersion joint, compression-shear loads are applied on a tunnel segment in a specific test set-up. For the applied loading schemes, different levels of axial force, corresponding to the water depth of the joint, are considered as well as varying amplitudes of the shear force. Based on these results, both the static and dynamic shear stiffness of an immersion joint were analysed. The results of the test indicate that the static shear stiffness of the joint increases linearly with the axial force and the same trend is found for the dynamic one. Moreover, the dynamic stiffness is larger than the static one.
KW - Immersed tunnel
KW - Immersion joint
KW - Shear key
KW - Shear stiffness
KW - Structural experiment
UR - http://www.scopus.com/inward/record.url?scp=84979503493&partnerID=8YFLogxK
U2 - 10.2749/222137816819259383
DO - 10.2749/222137816819259383
M3 - Conference contribution
AN - SCOPUS:84979503493
T3 - IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report
SP - 953
EP - 960
BT - IABSE Conference, Guangzhou 2016
PB - International Association for Bridge and Structural Engineering (IABSE)
T2 - IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions
Y2 - 8 May 2016 through 11 May 2016
ER -