Plane Stress Concrete Materials: Difference between revisions

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A number of Reinforced and Prestressed Concrete Plane Stress Materials are available. The ones on this page have been provided
A number of Reinforced and Prestressed Concrete Plane Stress Materials are available. The ones on this page have been provided
the University of Houston and are based on the Cyclic Softened Membrane Model (CSMM). They are capable of modeling the cyclic shear behaviour of  
the University of Houston and are based on the Cyclic Softened Membrane Model (CSMM). They are capable of modeling the cyclic shear behavior of  
prestressed and reinforced concrete membranes.
prestressed and reinforced concrete membranes.


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This command is used to construct an Reinforced Concrete Plane Stress material object.
This command is used to construct a Reinforced Concrete Plane Stress material object based on Rotating Angle Theory with steel along two directions.


{|  
{|  
| style="background:yellow; color:black; width:800px" | '''nDMaterial DMaterial ReinforcedConcretePlaneStress matTag? rho? s1? s2? c1? c2? angle1? angle2? rou1? rou2? fpc? fy? E0? epsc0?'''
| style="background:yellow; color:black; width:800px" | '''nDMaterial ReinforcedConcretePlaneStress matTag? rho? s1? s2? c1? c2? angle1? angle2? rou1? rou2? fpc? fy? E0? epsc0?'''
|}
|}


This command is used to construct a Reinforced Concrete Plane Stress material object based on Fixed Angle theory.
This command is used to construct a Reinforced Concrete Plane Stress material object based on Fixed Angle theory with steel along two directions.


{|  
{|  
| style="background:yellow; color:black; width:800px" | '''nMaterial FAReinforcedConcretePlaneStress matTag? rho? s1? s2? c1? c2? angle1? angle2? rou1? rou2? fpc? fy? E0? epsc0?'''
| style="background:yellow; color:black; width:800px" | '''nDMaterial FAReinforcedConcretePlaneStress matTag? rho? s1? s2? c1? c2? angle1? angle2? rou1? rou2? fpc? fy? E0? epsc0?'''
|}
|}






This command is used to construct a Reinforced Concrete Plane Stress material object based on Fixed Angle theory.
This command is used to construct a Reinforced Concrete Plane Stress material object based on Fixed Angle theory with steel along four directions.


{|  
{|  
| style="background:yellow; color:black; width:800px" | '''nMDaterial RAFourSteelRCPlaneStress matTag? rho? UniaxiaMatTag1? UniaxiaMatTag2? UniaxiaMatTag3? UniaxiaMatTag4? UniaxiaMatTag5? UniaxiaMatTag6? angle1? angle2? angle3? angle4? rou1? rou2? rou3? rou4? fpc? fy? E0? epsc0?'''
| style="background:yellow; color:black; width:800px" | '''nDMaterial FAFourSteelRCPlaneStress matTag? rho? UniaxiaMatTag1? UniaxiaMatTag2? UniaxiaMatTag3? UniaxiaMatTag4? UniaxiaMatTag5? UniaxiaMatTag6? angle1? angle2? angle3? angle4? rou1? rou2? rou3? rou4? fpc? fy? E0? epsc0?'''
|}
|}




This command is used to construct a Reinforced Concrete Plane Stress material object based on Rotating Angle theory.
This command is used to construct a Reinforced Concrete Plane Stress material object based on Rotating Angle theory with steel along four directions.


{|  
{|  
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This command is used to construct a Prestressed Concrete Plane Stress material object.
This command is used to construct a Prestressed Concrete Plane Stress material object based on Rotating Angle Theory with steel along two directions.


{|  
{|  
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|}
|}


This command is used to construct a Prestressed Concrete Plane Stress material object based on Fixed Angle theory.
This command is used to construct a Prestressed Concrete Plane Stress material object based on Fixed Angle theory with steel along two directions.


{|  
{|  
| style="background:yellow; color:black; width:800px" | '''nMaterial FAPrestressConcretePlaneStress matTag? rho? t1? s2? c1? c2? angle1? angle2? rou1? rou2? pstrain? fpc? fyT? fy? E0? epsc0?'''
| style="background:yellow; color:black; width:800px" | '''nDMaterial FAPrestressConcretePlaneStress matTag? rho? t1? s2? c1? c2? angle1? angle2? rou1? rou2? pstrain? fpc? fyT? fy? E0? epsc0?'''
|}
|}




This command is used to construct a Prestresed Concrete Plane Stress material object based on Fixed Angle theory.
This command is used to construct a Prestresed Concrete Plane Stress material object based on Fixed Angle theory with steel along four directions.


{|  
{|  
| style="background:yellow; color:black; width:800px" | '''nMaterial FAFourSteelPCPlaneStress matTag? rho? t1? t2? s3? s4? c1? c2? angle1? angle2? angle3? angle4? rou1? rou2? rou3? rou4? pstrain1? pstrain2? fpc? fyT? fy? E0? epsc0?'''
| style="background:yellow; color:black; width:800px" | '''nDMaterial FAFourSteelPCPlaneStress matTag? rho? t1? t2? s3? s4? c1? c2? angle1? angle2? angle3? angle4? rou1? rou2? rou3? rou4? pstrain1? pstrain2? fpc? fyT? fy? E0? epsc0?'''
|}
 
 
This command is used to construct a Prestressed Concrete Plane Stress material object based on Rotating Angle theory.
 
{|
| style="background:yellow; color:black; width:800px" | '''nMaterial RAFourSteelPCPlaneStress matTag? rho? t1? t2? s3? s4? c1? c2? angle1? angle2? angle3? angle4? rou1? rou2? rou3? rou4? pstrain1? pstrain2? fpc? fyT? fy? E0? epsc0?'''
|}
|}



Revision as of 18:23, 1 February 2010

A number of Reinforced and Prestressed Concrete Plane Stress Materials are available. The ones on this page have been provided the University of Houston and are based on the Cyclic Softened Membrane Model (CSMM). They are capable of modeling the cyclic shear behavior of prestressed and reinforced concrete membranes.

This code has been developed at the University of Houston by: A. Laskar, J. Zhong, Y.L. Mo , and Thomas T.C. Hsu,



This command is used to construct a Reinforced Concrete Plane Stress material object based on Rotating Angle Theory with steel along two directions.

nDMaterial ReinforcedConcretePlaneStress matTag? rho? s1? s2? c1? c2? angle1? angle2? rou1? rou2? fpc? fy? E0? epsc0?

This command is used to construct a Reinforced Concrete Plane Stress material object based on Fixed Angle theory with steel along two directions.

nDMaterial FAReinforcedConcretePlaneStress matTag? rho? s1? s2? c1? c2? angle1? angle2? rou1? rou2? fpc? fy? E0? epsc0?


This command is used to construct a Reinforced Concrete Plane Stress material object based on Fixed Angle theory with steel along four directions.

nDMaterial FAFourSteelRCPlaneStress matTag? rho? UniaxiaMatTag1? UniaxiaMatTag2? UniaxiaMatTag3? UniaxiaMatTag4? UniaxiaMatTag5? UniaxiaMatTag6? angle1? angle2? angle3? angle4? rou1? rou2? rou3? rou4? fpc? fy? E0? epsc0?


This command is used to construct a Reinforced Concrete Plane Stress material object based on Rotating Angle theory with steel along four directions.

nDMaterial RAFourSteelRCPlaneStress matTag? rho? UniaxiaMatTag1? UniaxiaMatTag2? UniaxiaMatTag3? UniaxiaMatTag4? UniaxiaMatTag5? UniaxiaMatTag6? angle1? angle2? angle3? angle4? rou1? rou2? rou3? rou4? fpc? fy? E0? epsc0?


This command is used to construct a Prestressed Concrete Plane Stress material object based on Rotating Angle Theory with steel along two directions.

nDMaterial PrestressedConcretePlaneStress matTag? rho? t1? s1? c1? c2? angle1? angle2? rou1? rou2? pstrain? fpc? fyT? fy2? E0? epsc0?


This command is used to construct an Prestressed Concrete Plane Stress material object.

nDMaterial RAFourSteelRCPlaneStress matTag? rho? UniaxiaMatTag1? UniaxiaMatTag2? UniaxiaMatTag3? UniaxiaMatTag4? angle1? angle2? rou1? rou2? pstrain? fpc? fyT? fy? E0? epsc0?

This command is used to construct a Prestressed Concrete Plane Stress material object based on Fixed Angle theory with steel along two directions.

nDMaterial FAPrestressConcretePlaneStress matTag? rho? t1? s2? c1? c2? angle1? angle2? rou1? rou2? pstrain? fpc? fyT? fy? E0? epsc0?


This command is used to construct a Prestresed Concrete Plane Stress material object based on Fixed Angle theory with steel along four directions.

nDMaterial FAFourSteelPCPlaneStress matTag? rho? t1? t2? s3? s4? c1? c2? angle1? angle2? angle3? angle4? rou1? rou2? rou3? rou4? pstrain1? pstrain2? fpc? fyT? fy? E0? epsc0?



$matTag integer tag identifying material
$rho material density
$t1 $t2 material tags for uniaxial materials of type TendonL01
$s1 $s2 .. material tags for uniaxial materials of type SteelZ01
$c1 $c2 material tags for uniaxial materials of type ConcreteL01, ConcreteZ01
$angle1 $angle2 ... angle of i'th (steel or tendon) layer to x coordinate
$rou1 $rou2 ... steel ratio of the i'th layer.
$pstrain1 $pstrain2 initial strain in tendons
$fpc compressive strength of concrete
$fyT yield strength of tendons
$fy yield strength of steel
$E0 initial stiffness of steel (Young's Modulus)
$epsc0 compressive strain of concrete

A number of special uniaxial materials are needed for these materials. These materials are created using the following uniaxialMaterial commands.

uniaxialMaterial SteelZ01 tag? fy? E0? fpc? rou? <ac?> <rc?>
uniaxialMaterial TendonL01 tag? fpy? Eps? fpc? rou? epsp? <ac?> <rc?>
uniaxialMaterial ConcreteL01 tag? fpc? epsc0?
uniaxialMaterial ConcreteZ01 tag? fpc? epsc0?


$tag unique uniaxial integer tag identifying material
$fy yield strength bare steel
$E0 initial stiffness
$fpc compressive strength of concrete
$epsc0 strain at compressive strength
$rou steel ratio
$epsp prestress strain
$ac unloading path parameter (default = 1.9)
$rc reloading path parameter (default = 10.0)



EXAMPLE

N_FSW13.tcl


REFERENCES


T.T.C. Hsu and Y.L. Mo, "Unified Theory of Concrete Structures", Wiley, COMING APRIL 2010

Y.L. Mo, J. Zhong, T.T.C. Hsu, "Seismic simulation of RC wall-type structures",Engineering Structures, 30(11), 3167-3175, 2008.