海岸高桩码头结构受地震和海浪荷载作用的近似计算

An Approximate Calculation of Seashore High-pill Structure Under Force of Eearthquake and Waves

本文通过海岸高桩码头结构受地震和海浪作用的分析,对非线性流体阻力项等效为线性粘滞阻尼力,代替等效粘滞阻尼系数中与频率有关的位移幅值使计算简化,并通过湛江外贸码头实例,计算其受地震和海浪作用的响应,且与原设计方法中的“Feurier变换一时域迭代混合法”计算结果比较.本文虽是近似计算的特例,但对此情况,仍不失为一种快速、精度较高的分析、计算方法.

In this paper, the nonlinear fluid drag term in analysis of seashore high-pill structure under the force of earthquake and waves is replaced by a liner viscous damping, and displacement is used to replace the frquency dependent coefficient, that makes the calculation much simpler. Here the Zanjiang Harbour structure is taken as an example to calculate the responses of the structure under the force of earthquake and waves, Although the approach is an special approximatec calculation, it is still a high accurary method in analysis and calculation, compared to the mixed method of Fourier transform and time domain iteration.