相对刚度比 meaning in Chinese
relative stiffness ratio
Examples
- When the frequency approaches zero , the factor approaches zero correspondingly ; 2 ) the amplitude of interaction factors changes with the incident angle of rayleigh waves and reaches maximum when is zero . moreover , with the increase of , the wave period shortens apparently ; ( 3 ) the amplitude of interaction factors decreases as the pile spacing increases and approaches to zero when the pile spacing is 15 ; 4 ) the amplitudes of interaction factors increase clearly with the increasing stiffness ratio of pile to soil ; 5 ) the lat eral seismic response of fixed - head pile groups is much smaller than that of free - head pile groups . moreover , the pile - group effects induced by rayleigh waves can be neglected ; 6 ) the lateral seismic response of piles at different location differs from each other
得到了以下结论： 1 )桩的相互作用因子随频率呈周期性变化，在振动频率比较低的情况下，桩的横向相互作用因子也较低，当频率趋近于零时，相互作用因子也趋近于零； 2 )桩的相互作用因子的幅值随瑞利波入射角度的变化而变化，在= 0情况下幅值最大，且随入射角度的增加，波动的周期明显缩短； 3 )桩的相互作用因子的幅值随着桩与桩间距的增加而减小，至s d = 15时，桩的相互作用因子基本趋近于0 ； 4 )在频率比较低时，相互作用因子幅值随桩土相对刚度比的增加而显著增加； 5 )桩顶固接可以有效地降低群桩的横向地震响应幅值，由瑞利波产生的群桩效应可以忽略不计； 6 )群桩中不同桩位的桩的横向地震响应是不同的，每根桩所在的桩位对其横向地震响应有很大的影响；刀桩数的增加并不能减小桩的横向动力响应。