海岸立式油罐设计问题的探讨

位于台风区海岸立式油罐的设计应考虑如下问题：风速的取值应以该地区台风风速作为瞬时风速计算瞬时风压值，若以３０ａ 一遇时距为１０ｍｉｎ的基本风压计算除乘以转换系数Ｋ２外，宜加大２０％－４０％；罐底是否设置地脚螺栓应按风压引起的倾覆力矩校该其稳定稳定性，当倾覆力矩大于固定载荷抵抗力矩的三分之二时才考虎设置地脚螺栓；油罐盘梯方位应放在背风方位，盘梯结构应带有三角架及内外侧板结构，罐体的防腐应以防止海水中

Seashore Vertical Oil Tank Design

The following should be put into consideration in the design of vertical oil tanks located on the seashore in typhonic areas: Typhonic velocity should be refered as the instaneous velocity for calculating instaneous anemobarovalue. If the calculation is done based on 10 min. once every 30 years as the basic wind pressure,the number should be multiplied by the convertion factor, besides,it should be added up to 20%-40% ;Wheather anchor bolts are necessary to be allocated at the tank bottom depends on the tilting moment caused by typhonic pressure and the stability should be checked. Anchor bolts are necessary only when the tilting moment gets longer than the load resistance moment by 2/3;The spiral stairway of the oil tank should be located on the sheltered side,its structure should be installed with a tripod and internal, external board structures;Salty water corrosion should be put into consideration for tank corrosion protection. Tanks located on the seashore is not allowed to be kept in an empty state during typhonic season. The minimum lecel of oil remaining inside can be defined through calculation.