Ductility Factor (D/D1)

Check the ductility factor (D/D1) of the inelastic hinges (Lumped, Distributed, Spring, and Truss Type) resulting from the time history analysis with the time step, in a spreadsheet table format.

D/D1 is the ratio of the inelastic hinge deformation resulting from the time history analysis to the 1st yield deformation specified by the user.

Table Tool in MIDAS/Gen offers a variety of powerful built-in functions. Refer to Usage of Table Tool for detail directions:

From the Main Menu select Results > Result Tables > Inelastic Hinges > Ductility Factor (D/D1)

Upon executing the Inelastic Hinge > Ductility Factor (D/D1) Table function, Records Activation Dialog prompts. Click   after selecting time history loading conditions for output.

Note

Refer to Results Table of "Usage of Table Tool" for the usage of Records Activation Dialog.

Refer to Usage of Table Tool and check the following data:

Ductility Factor(D/D1) Table (Lumped)

Ductility Factor(D/D1) Table (Distributed)

Elem: Element number

Hinge Location: Locations where inelastic hinges are assigned. For Lumped Type, it displays as i, j, i & j, FX. For Distributed Type, it displays according to the number of hinges.

Inelastic Hinge Prop.: Inelastic hinge property number

Load: Time history load case

D/D1: the ratio of the maximum deformation within the elapsed analysis time to the 1st yield deformation

Time: Time at which the maximum deformation occurs

Ductility(D/D1) Factor Table (Truss)

Elem: Element number

Hinge Location: Location of inelastic hinge

Inelastic Hinge Prop.: Inelastic hinge property number

Load: Time history load case

D/D1: the ratio of the maximum deformation within the elapsed analysis time to the 1st yield deformation

Time: Time at which the maximum deformation occurs

Ductility(D/D1) Factor Table (Spring)

General Link

Prop. : General Link Property

Node1, 2 : Node numbers connecting a General Link

Inelastic Hinge Prop.: Inelastic hinge property number

Load: Time history load case

D/D1: the ratio of the maximum deformation within the elapsed analysis time to the 1st yield deformation

Time: Time at which the maximum deformation occurs