CAJ | 학술논문

位于浪溅区的弹性结构物的上部结构可能会受到幅值很大、历时较短的波浪冲击荷载。高强度的瞬时冲击荷载作用以及由它引起的结构振动响应往往是导致结构损坏的主要原因。通过物理模型试验，研究了波浪对弹性支撑平板结构的冲击作用。试验中设计了3种不同支撑刚度的结构物模型，对结构物底面所受的波浪冲击压力和结构物振动加速度响应进行了同步观测。分析了支撑刚度对冲击压力和结构振动的影响，以及结构物所受的波浪冲击压力与对应时段振动加速度之间的关系。试验结果表明，结构物支撑刚度越大，其所受的冲击压力也越大，对应时段的振动加速度幅值也越大。
위우랑천구적탄성결구물적상부결구가능회수도폭치흔대、력시교단적파랑충격하재。고강도적순시충격하재작용이급유타인기적결구진동향응왕왕시도치결구손배적주요원인。통과물리모형시험，연구료파랑대탄성지탱평판결구적충격작용。시험중설계료3충불동지탱강도적결구물모형，대결구물저면소수적파랑충격압력화결구물진동가속도향응진행료동보관측。분석료지탱강도대충격압력화결구진동적영향，이급결구물소수적파랑충격압력여대응시단진동가속도지간적관계。시험결과표명，결구물지탱강도월대，기소수적충격압력야월대，대응시단적진동가속도폭치야월대。
When waves propagate against a structure in the splash zone,an impact force with a large magnitude and short duration may act on it.The high-strength instant impact force and the wave-induced structure vibrations may cause a significant damage to the structure.So,the wave impact on an elastically supported horizontal deck is focused on.Physical models with three kinds of different stiffness of the supporters are considered.The impact pressure and the vibration acceleration of the structure are measured simultaneously in the experiments.The influence of the stiffness of the supporters on impact pressure as well as the structure vibration is discussed.The relationship between the impact pressure and its corresponding vibration acceleration is analyzed.It is shown that the larger the support stiffness of the structure is, the greater the impact pressure and its corresponding vibration acceleration amplitude are.