2016 年 62A 巻 p. 93-101
In this paper, the ultimate strength of aluminum alloy girders in bending is investigated. First an equation to estimate the ultimate strength of girders in bending is formulated. Next the elastic-plastic large deflection analysis with FEM provides a formula to estimate the ultimate strength in the lateral direction of a flange. Finally FEM analyses are carried out to confirm the validity of the equation established for the ultimate strength of girders in bending.