In this study, a numerical procedure is described for the transient response analysis of a submergedudfloating tunnel with reference of a designed tunnel in Japan. Tension legs seizing the tunnel are simply modeled by audspring elements and the tunnel itself is assumed by two rigid bodies between which a flexible joint is used. A recordedudseismic excitation is used while the wave load is calculated under a specific design condition. Hydro-damping andudadded mass are considered for numerically modeling the underwater condition. A numerical procedure is validated withudcompared to the previous results of the designed tunnel. Some modifications are proposed through the validatingudprocess in terms of modeling and analysis procedure. Eventually, the modified numerical procedure will be used inudanalyzing the transient response of a newly designed tunnel.
展开▼
