Transcript Reconfigurable Reaction Wall Earthquake Simulation Facility

OpenSees Navigator &
Hybrid Simulation
Project by PEER in support of NEES
Graduate Student: Andreas Schellenberg
Advisor: Prof. Stephen Mahin
Introduction
MATLAB based Graphical User Interface
developed by Andreas Schellenberg &
Tony Yang
Pre- and post-processing for OpenSees
Integration of Hybrid Simulation into
OpenSees
Design toolboxes: NSP, AISC design
checks, …
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Motivation
Graphical input is more flexible than TCL
text input
Most researchers use MATLAB to do the
post-processing, and MATLAB/Simulink is
the typical framework for implementing
hybrid analyses
OpenSees Navigator will create the
OpenSees (hybrid) model and graphically
display results before, during or after a
test
Flexible to use and requires no
programming skills
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OpenSees Navigator
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Define Geometry
Stick Model
Moment Frame
Beam Model
Inverted-V Braced Frame
EBF Model
Zipper Frame
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Define Geometry: Braced Frame
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Define Geometry: Display
Node:
-Numbers
-SP Constraints
-MP Constraints
-Masses
-Loads/Disp.
Element:
-Numbers
-Types
-GeoTrans
-Local Axes
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Edit Geometry
Node:
-Add
-Delete
-Move
Element:
-Add
-Delete
-Divide
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Define Material
Templates:
-Elastic
-ElasticNoTension
-ElasticPP
-ElasticPPGap
-Hardening
-Steel01
-Steel02
-Concrete01
-Concrete02
-Concrete03
-Hysteretic
-Viscous
-Parallel
-Series
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Define Steel02 Material: 50ksi
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Define Section
Templates:
-Elastic
-Uniaxial
-Fiber
-Aggregator
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Define Fiber Section: Column
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Define Element
Templates:
-Truss
-CorotationalTruss
-ElasticBeamColumn
-ForceBeamColumn
-DispBeamColumn
-HingeBeamColumn
-ZeroLength
-ExpTruss
-ExpBeamColumn
-ExpChevronBrace
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Define ElasticBeamColumn Element
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Define ForceBeamColumn Element
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Define TimeSeries
Templates:
-Constant
-Linear
-Rectangular
-Sine
-PathValue
-PathFile
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Define PathFile TimeSeries: SACNF01
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Define LoadPattern
Templates:
-Plain
-UniformExcitation
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Define UniformExcitation LoadPattern
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Define Recorder
Templates:
-Node
-Drift
-Truss Element
-BeamColumn Element
Defaults:
-DefoShape
-EigenVector
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Define BeamColumn Recorder
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Define Analysis Options
Defaults:
-StaticDefault
-TransientDefault
-EigenDefault
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Define New Analysis Options
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Assign Menu
Node:
-SP Constraints
-MP Constraints
-Masses
-Loads
-Displacements
Element:
-Types
-GeoTrans
-Rotations
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Assign Menu
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Assigned Properties
Nodal Masses
Element Types
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Define Analysis Cases
Defaults:
-StaticDefaultCase
-EigenDefaultCase
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Define New Analysis Case
For Example:
Periods and Mode Shapes after Time-History Analysis
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To Run OpenSees
Steps:
1. Write OpenSees Input Files (writes TCL files)
2. Save OpenSees.exe Path (needs to be done only once)
3. Run OpenSees
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Post-Processing: Output
First:
Load OpenSees Results into Matlab
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Post-Processing: Output
Now these are enabled
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Mode Shape: 1st Mode
Animation Speed
AnalysisCase
Recorder
Mode
Magnification
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Mode Shape: 3rd Mode
Animation Speed
AnalysisCase
Recorder
Mode
Magnification
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Deformed Shape
Time Step
AnalysisCase
Recorder
Order
Magnification
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Response
AnalysisCase
Recorder
Parameter
Node/Elem
DOF
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Hybrid Simulation Example
Experimental
ChevronBrace Element
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Define Experimental Control
Templates:
-xPC Target
(-SCRAMNET 150)
-dSpace 1104
-BeamColumnSim
-ChevronBraceSim
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Define ExpControl: xPC Target
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Define Experimental Setup
Templates:
-OneStaticActuator
-TwoStaticActuators
-ThreeStaticActuators
-ChevronBrace
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Define ExpSetup: ChevronBrace
rigidLength2
rigidLength3
© Tony Yang
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Define Experimental Site
Templates:
-LocalSite
-RemoteSite
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Define ExpSite: RFS
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Define ExpElement: ChevronBrace
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Modify Analysis Options
Integrator Type:
Use AlphaOS Method for Hybrid Simulation
Solution Algorithm:
The AlphaOS Method requires a Linear solution algorithm
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Mode Shape: 1st Mode
Animation Speed
AnalysisCase
Recorder
Mode
Magnification
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Mode Shape: 3rd Mode
Animation Speed
AnalysisCase
Recorder
Mode
Magnification
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Deformed Shape
Time Step
AnalysisCase
Recorder
Order
Magnification
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Response
AnalysisCase
Recorder
Parameter
Node/Elem
DOF
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Summary
OpenSees Navigator provides
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Flexible and user friendly graphical user interface
Easy way to study material, section, element or
system behaviors
Hybrid Simulation interface
Many built in post processing toolboxes
Great tool to visualize structural behavior
Graphical user interface for AISC steel manual
section properties
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Conclusion
OpenSees Navigator 2.0 is available at
http://peer.berkeley.edu/OpenSeesNavigator
Andreas Schellenberg:
[email protected]
Tony Yang:
[email protected]