地震作用是确定球罐抗震设计的基本依据。根据地震烈度、实际场地条件、结构

地震作用是确定球罐抗震设计的基本依据。根据地震烈度、实际场地条件、结构自振特性、球罐的形状和刚度、质量分布以及抗震设计要求等因素正确的确定球罐所受的地震作用，是获得安全和经济完美协调的进行球罐抗震设计的前提。<br>GB/T12337-2014《钢制球形储罐》规定，地震载荷只需考虑水平地震力的影响，因此三种计算方法中均只考虑相应水平地震载荷的影响。<br>计算过程中，球罐内装介质及各种附件的重量均通过等效质量转移法进行处理折算到球罐壳体上，将介质的质量通过增大壳体的密度来等效实现惯性力加以考虑。

地震作用是确定球罐抗震设计的基本依据。 根据地震烈度、实际场地条件、结构自振特性、球罐的形状和刚度、质量分布以及抗震设计要求等因素正确的确定球罐所受的地震作用，是获得安全和经济完美协调的进行球罐抗震设计的前提。<br>GB/T12337-2014《钢制球形储罐》规定，地震载荷只需考虑水平地震力的影响，因此三种计算方法中均只考虑相应水平地震载荷的影响。<br>计算过程中，球罐内装介质及各种附件的重量均通过等效质量转移法进行处理折算到球罐壳体上，将介质的质量通过增大壳体的密度来等效实现惯性力加以考虑。

The seismic action is the basic basis for determining the seismic design of spherical tanks. According to the seismic intensity, the actual site conditions, the structural natural vibration characteristics, the shape and stiffness of the spherical tank, the mass distribution and the seismic design requirements and other factors, the correct determination of the seismic action of the spherical tank is the premise to achieve the perfect coordination of safety and economy in the seismic design of the spherical tank.<br>According to GB / t12337-2014 steel spherical tank, only the influence of horizontal seismic force shall be considered for seismic load, so only the influence of corresponding horizontal seismic load shall be considered in the three calculation methods.<br>In the calculation process, the weight of the media and various accessories in the spherical tank is converted to the spherical tank shell by the equivalent mass transfer method, and the mass of the media is taken into account by increasing the density of the shell to achieve the equivalent inertial force.<br>