STRUCTURAL OPTIMIZATION BY DISPLAYING THE RELIABILITY CONSTRAINTS

This paper presents an approach for structural optimization design by means of displaying the reliability constraints. To begin with, a vari ety of non-normal random loads to which the structure is subjected are transformed into normal types of loads by means of normal tail transf ormation. Then the reliability constraints, namely displacement and st ress, are transformed into constraints of conventional forms according to the characteristics of invariance in a linear elastic structures t o the normal loads. At the end, the problem of reliabliltiy optimizati on is solved by the mixed method and satisfactory results have been ob tained.