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opensees用户指南
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学习opensees的用户指南,建模、分析以及输出的步骤及代码的输入方法均详尽的记录在内
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Printed on 1 July, 2007
Open System for Earthquake Engineering Simulation (OpenSees)
OpenSees Command
Language Manual
Silvia Mazzoni, Frank McKenna, Michael H. Scott, Gregory L. Fenves,
et al.
iii
Contents
Introduction 11
Notation ........................................................................................................................................11
Copyright ......................................................................................................................................13
Introduction to the Tcl command language ..................................................................................14
Tcl Commands Format.................................................................................................................15
Example Tcl Commands ..............................................................................................................16
Additional Tcl Resources .............................................................................................................17
OpenSees Interpreter...................................................................................................................18
OpenSees 19
OpenSees Features .....................................................................................................................21
WHY OPENSEES? ......................................................................................................................21
+ The library of materials, elements and analysis commands makes OpenSees a powerful tool
for numerical simulation of nonlinear structural and geotechnical systems ......................21
+ The OpenSees library of components is ever-growing and at the leading edge of
numerical-simulation models .............................................................................................21
+ The OpenSees interface is based on a command-driven scripting language which enables
the user to create more-versatile input files.......................................................................21
+ OpenSees is not a black box, making it a useful educational tool for numerical modeling21
+ You can create your own material, element or analysis tools and incorporate them into
OpenSees ..........................................................................................................................21
+ NEES is supporting integration of OpenSees as the simulation component of laboratory
testing.................................................................................................................................21
MODELS: .....................................................................................................................................22
+ linear & nonlinear structural and geotechnical models ...................................................22
SIMULATIONS: ............................................................................................................................23
+ static push-over analyses ...............................................................................................23
+ static reversed-cyclic analyses .......................................................................................23
+ dynamic time-series analyses.........................................................................................23
+ uniform-support excitation...............................................................................................23
+ multi-support excitation...................................................................................................23
MODELING FEATURES:.............................................................................................................23
MODEL-BUILDING FEATURES: .................................................................................................24
ANALYSIS FEATURES:...............................................................................................................26
ModelBuilder Object .....................................................................................................................29
Domain Object..............................................................................................................................30
Recorder Object ...........................................................................................................................31
Analysis Object.............................................................................................................................31
Model-Building Objects 33
model Command 34
Basic Model Builder......................................................................................................................34
build Command ............................................................................................................................35
node Command 36
mass Command 37
Contents iv
constraints objects 38
Single-Point Constraints...............................................................................................................38
fix Command ................................................................................................................................38
fixX Command..............................................................................................................................39
fixY Command..............................................................................................................................39
fixZ Command ..............................................................................................................................40
Multi-Point Constraints .................................................................................................................41
equalDOF Command ...................................................................................................................41
rigidDiaphragm Command ...........................................................................................................41
rigidLink Command ......................................................................................................................42
uniaxialMaterial Command 43
-- Contributed Uniaxial Materials 44
BARSLIP Material ........................................................................................................................44
Concrete04 Material -- Popovics Concrete Material ....................................................................57
Concrete04 -- Material Behavior 61
FatigueMaterialExample.tcl 63
Limit State Material 73
Shear Limit Curve.........................................................................................................................74
Axial Limit Curve ..........................................................................................................................75
Shear Limit Curve.........................................................................................................................76
Example Files for Limit State Material..........................................................................................78
PINCHING4 Material ....................................................................................................................84
PINCHING4 Uniaxial Material Model Discussion.........................................................................90
PyTzQz Uniaxial Materials .........................................................................................................104
PySimple1 Material ....................................................................................................................104
TzSimple1 Material.....................................................................................................................105
QzSimple1 Material ....................................................................................................................106
PyLiq1 Material...........................................................................................................................107
TzLiq1 Material...........................................................................................................................108
PySimple1Gen Command..........................................................................................................110
TzSimple1Gen Command..........................................................................................................111
ReinforcingSteel -- Material Behavior 125
Elastic Material ...........................................................................................................................125
Elastic-Perfectly Plastic Material ................................................................................................126
Elastic-Perfectly Plastic Gap Material ........................................................................................128
Elastic-No Tension Material .......................................................................................................129
Parallel Material..........................................................................................................................130
Series Material ...........................................................................................................................131
Hardening Material .....................................................................................................................133
Concrete01 Material -- Zero Tensile Strength............................................................................134
Concrete01 -- Material Behavior 137
Concrete02 Material -- Linear Tension Softening ......................................................................137
Concrete02 -- Material Behavior 143
Concrete03 Material -- Nonlinear Tension Softening................................................................143
Concrete03 -- Material Behavior 147
Contents v
Steel01 Material .........................................................................................................................147
Steel01 -- Material Behavior 152
Steel02 Material -- Giuffré-Menegotto-Pinto Model with Isotropic Strain Hardening .................153
Steel02 -- Material Behavior 158
Hysteretic Material......................................................................................................................158
Hysteretic -- Material Behavior 161
Viscous Material .........................................................................................................................161
nDMaterial Command 162
Elastic Isotropic Material ............................................................................................................162
J2 Plasticity Material...................................................................................................................163
Plane Stress Material .................................................................................................................163
Plate Fiber Material ....................................................................................................................164
UC Davis Soil Models.................................................................................................................164
Template Elasto-Plastic Material................................................................................................164
UCSD Soil Models......................................................................................................................169
section Command 191
Elastic Section............................................................................................................................192
Uniaxial Section..........................................................................................................................193
Fiber Section ..............................................................................................................................194
Fiber Command..........................................................................................................................196
Quadrilateral Patch Command...................................................................................................197
Circular Patch Command ...........................................................................................................199
Straight Layer Command ...........................................................................................................201
Circular Layer Command ...........................................................................................................202
Section Aggregator.....................................................................................................................203
Elastic Membrane Plate Section ................................................................................................205
Plate Fiber Section .....................................................................................................................205
Bidirectional Section...................................................................................................................206
Isolator2spring Section: Model to include buckling behavior of an elastomeric bearing ..........207
element Command 215
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- jszhu3802014-08-21还可以,只是希望有中文版的
bridandbrid
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