3.1.5.11. Concrete01 Material – Zero Tensile Strength

This command is used to construct a uniaxial Kent-Scott-Park concrete material object with degraded linear unloading/reloading stiffness according to the work of Karsan-Jirsa and no tensile strength. (REF: Fedeas).

uniaxialMaterial Concrete01  $matTag $fpc $epsc0 $fpcu $epsu

Argument	Type	Description
$matTag	integer	integer tag identifying material.
$fpc	float	concrete compressive strength at 28 days (compression is negative)* .
$epsc0	float	concrete strain at maximum strength* .
$fpcu	float	concrete crushing strength*.
$epsU	float	concrete strain at crushing strength*.

Note

• Compressive concrete parameters should be input as negative values (if input as positive, they will be converted to negative internally).

• The initial slope for this model is (2*$fpc/$epsc0)

Typical Hysteretic Stress-Strain Relation for material

Code Developed by: Filip Filippou, UC Berkeley Images Developed by Silvia Mazzoni