Slack phenomena in tethers of submerged floating tunnels under hydrodynamic loads

Moving Load Analysis of Submerged Floating Tunnels

The concept of floating submerged tunnels becomes increasingly attractive idea to cross the straits. The structural solution in these bridges includes buoyancy force on tunnel body plus tension in mooring tethers. This paper investigates the effect of submergence on the dynamic response of submerged floating tunnels due to moving load. The inertial effect of the fluid on the submerged structure...

Effect of hydrodynamic interaction on polymeric tethers.

Weak bonds are ubiquitous in biological structures. They often act as adhesive contacts within an extended structure, for example, the internal bonds in a folded protein or a DNA/RNA loop. They also act as linkers between two structures, for example, a protein grafted in a cell membrane or a protein linking the cell membranes of two neighboring cells. Typically, the breakage of a bond depends o...

Explosion loads in immersed tunnels February 2009

Hydrodynamic Phenomena in Suspensions of Swimming Microorganisms

Vast numbers of microorganisms are suspended in temperate aqueous environments. Oceans and rivers, puddles and droplets, the fluid interiors of animals, all host an array of splendidly varied creatures. Although their presence is usually not casua1\y obvious, they constitute the major part of the world's biomass. Their population dynamics-replication and decay, accumulation and dispersal-modula...

Transient Response Analysis of a Submerged Floating Tunnel under Seismic and Wave Excitations

In this study, a numerical procedure is described for the transient response analysis of a submerged floating tunnel with reference of a designed tunnel in Japan. Tension legs seizing the tunnel are simply modeled by a spring elements and the tunnel itself is assumed by two rigid bodies between which a flexible joint is used. A recorded seismic excitation is used while the wave load is calculat...