BuildingTcl -- addMaterial: MaterialmodelLabel ConfinedConcrete

Commands

addMaterialData MaterialLabel $MaterialLabel

addMaterialData MaterialModelLabel Steel

addMaterialData Fc $Fc

<addMaterialData MaterialDescription $MaterialDescription >

<addMaterialData rFc $rFc>

<addMaterialData rFu $rFu>

<addMaterialData E $E>

<addMaterialData epsU $epsU>

<addMaterialData lambda $lambda>

<addMaterialData fT $fT>

<addMaterialData Ets $Ets>

<addMaterialData WeightDensity $WeightDensity>

addMaterial

Arguments

$MaterialLabel

Unique Material Label for reference

$Fc

Nominal Compressive Strength

$MaterialDescription

Text. Optional, default = blank {}

$rFc

Ratio of actual/maximum compressive strength to nominal cmopressive strength -- confinement effect. Optional, default = 1.3

$fFu

Ratio of residual strength to maximum strength -- confinement effect. Optional, default = 0.8

$E

Elastic Modulus. Optional, default = 57000*$psi*(pow($rFc*$Fc/$psi)

The resultant value will be in the basic Force/Length/Length units.

$epsU

Strain at residual strength. Optional, default = 0.040

$lambda

Ratio between unloading slope at epscu and initial slope. Optional, default = 0.1

$fT

Tensile strength. Optional, default = 0.1*$rFc*$Fc

$Ets

Tension softening stiffness (slope of the linear tension softening branch). Optional, default = $fT/0.002

$WeightDensity

Volumetric Weight Density of Material. Used to calculated section WeightDensity: sectionWeightDensity=$materialWeightDensity*SectionArea. Optional, default = 0.

NOT IMPLEMENTED IN CURRENT VERSION

Notes

The addMaterial command must be placed at the end of each Material-data definition, as it takes all data defined since the last addMaterial command and define the Material. This material is essentially the same as the UnconfinedConcrete material, with different default values for maximum-to-nominal and residual-to-nominal strength ratios.

OpenSees Object

This MaterialModel is based on the OpenSees Concrete02 Material -- Linear Tension Softening

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BuildingTcl -- addMaterial

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