Concrete01WithSITC
This command is used to construct a modified uniaxial Kent-Scott-Park concrete material object with degraded linear unloading/reloading stiffness according to the work of Karsan-Jirsa and no tensile strength. The modification is to model the effect of Stuff In The Cracks (SITC). The command is as follows:
uniaxialMaterial Concrete01WithSITC $matTag $fpc $epsc0
$fpcu $epsU <$endStrainSITC>
matTag
|
integer tag identifying material |
fpc
|
concrete compressive strength at 28 days (compression is negative)* |
epsc0
|
concrete strain at maximum strength* |
fpcu
|
concrete crushing strength * |
epsU
|
concrete strain at crushing strength* |
endStrainSITC
|
optional, default = 0.03 |
NOTE:
- Compressive concrete parameters should be input as negative values.
- The initial slope for this model is (2*\(fpc/\)epsc0)
REFERENCES:
J.F. Stanton and H.D. McNiven, “The Development of a Mathematical Model to Predict the Flexural Response of Reinforced Concrete Beams to Cyclic Loads, Using System Identification”, EERC Report Number 79/02, January 1979.
Code Developed by: Won Lee, Stanford