Abstract：Research purposes:This paper studies the effectofproperty change of tension leg structure on the dynamic response of submerged floating tunnelwith the followingmethods: It is to simplify the multi-span submerged floating tunnel into the concentratedmasswhich acts at the end of the anchor cable, supposing the submerged floating tunnelhas a little amplitude dynamic vibration formeeting the need of usage comfortableness. When the effect of the vortex-induced vibration of tension leg on submerged floating tunnel structure is not taken into accoun,t the equation for submerged floating tunnel vibration is established under the effect of cross current vortex-induced vibration and the slope tension leg is equalized into horizontal tension leg and vertical tension leg. If it only considers the submerged floating tunnelvibration crosses the currentand the load acts atthe anchorcable, it is to simplify the fluid force into tune load. UsingRunge-Kutta numericalmethod solves the vibration equation and the different cases are simulated with MATLAB program.
Research conclusions:The study result shows that the angle between the anchor cable and the bottom of the ocean has little effecton the dynamic response, and the response law of the tension legs' axis stiff is the same as initial tension.
秦银刚，周晓军. 张力腿型悬浮隧道涡激响应影响因素分析[J]. 铁道工程学报, 2009, 26(1): 77-81.
QIN Y in-gang, ZHOU X iao-jun. Analysis of the Influencing Factors ofVortex-induced Vibration Response of the Submerged Floating Tunnel Supported by Tension Leg. 铁道工程学报, 2009, 26(1): 77-81.
[4] Svein Remseth, Bernt J. Leira, KnutM. Okstad, KjellM. Mathisen, Terje Hauka?s. Dynamic response and fluid / structure interaction of submerged floating tunnels[J]. com- puter& structures, 72 (1999)659-685.
[5] F. Brancaleon,i A. Castellanit, P. D A' sdia. The response of submerged tunnels to their environment[J]. Eng. Struct. 11 (1989): 47-56.
[6] S.Kanie,T.Mikam,i H,Horiguch,i etc. effect of non-line- arity in restoring force on dynamic response of SFT[C] // StraitCrossing 2001. Krobeborg: Swets& ZeitlingerPublish- ers Lisse, 2001: 529-534.
2009, Vol. 26 
版权所有 © 2014 《铁道工程学报》编辑部