Resumen
Experiments were focused on deflection responses of the wall member of upright structures to impulsive wave forces. The experiments revealed that the wall deflection response depends on wave loading modes as well as on natural frequency of the wall member system, fNW. Single degree-of-freedom model of transient impact shows that the peak wall deflection is given as a function of the ratio between rise time of wave force xF and fNW, representing characteristics of the wave load and the wall member. The measured peak deflection agrees well with the predicted by the model. In addition, the model indicates that with decreasing natural frequencies of the wall system, the wave load mode brought about greater peak deflections changes from the mode of short duration force to that of long-lasting force.
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