The project requires a ASME code for design of America

this research based on the finite element analysis method

the stress analysis of the 4000 m3 large spherical tank

to America ASME-Ⅷ-2 standard as the basis for stress evaluation

provide guidance for the structure design of spherical tank. The design load of spherical tank in addition to design internal pressure

also including a spherical shell structure

accessories

material storage

snow static load

and the support by the counterforce of spherical tank. Consideration should also be given to the dynamic load caused by wind or earthquake. After calculation

combination: mass + design pressure +25% wind load + earthquake load stress results of maximum

the spherical shell maximum stress occurs at the highest point of junction pillar and spherical shell. The value of the maximum stress occurs at the connecting part of supporting and spherical shell. The connection point of the supporting and spherical shell is a weak point

attention should be given to the design time

increasing the length of pillar and spherical shell can effectively reduce the stress concentration.