Study on the unequal thickness joints of offshore fixed platform structure

This paper takes the problem of unequal thickness structure construction of fixed platform of offshore facilities as the starting point,and defines the specific requirements of unequal thickness structure nodes through the standard review. The most important thing is to express the stress concentration coefficient of different forms of unequal thickness structure through tables and formulas by substituting the subsequent hot spot stress,so as to provide ideas for the quality control of key nodes in future field inspection.