General Link Passive Vibration Control Base Isolation Applications Inelastic Time- History Analysis...

General Link Passive

Vibration

Control Base Isolation Applications Inelastic Time-

History Analysis

Fiber Models

Inelastic Time- History Analysis

Fiber Models

Boundary Nonlinear Boundary Nonlinear

General Link

Boundary Nonlinear Analysis

Viscoealstic Damper Hysteretic System

ffkd

cd

ff

kd cd

0K

yKyF

yd

00 ; y

y

KK rK r

K

00

; yy y y

FF K d d

K

Lead Rubber Bearing Friction Pendulum System

Elastic Axial Spring

Nonlinear Shear Spring(Hysteretic System)

x

z y

kx

2d2f3f

3d

0K

yKyF

yd

P

P

P

P ffR

μ

k

Passive Vibration Control

Base Isolation System

Miscellaneous Miscellaneous

General Link – Passive Vibration Control

Maxwell ModelKelvin(Voigt) ModelDamper-Brace Assembly(Maxwell+Kelvin)

Viscoealstic Damper Gap Type LinkHook Type LinkHysteretic System



Vibration

Control Base Isolation Applications

Passive

Vibration

Control


Fiber Models


Fiber Models Miscellaneous Miscellaneous

General Link – Isolating System

LRB Isolator

FPB Isolator



Vibration


Base Isolation


Fiber Models


Fiber Models


General Link – Seismic Analysis of the Isolating System

Seismic Isolation Analysis

Ground Acceleration

Time History GraphFrequency Domain

FunctionHysteretic Curve of

The Isolator

Isolator : LRB or FPB



Vibration


Applications


Fiber Models


Fiber Models


Yield Surface Properties

Hysteresis Models


Inelastic Hinges Hysteretic

Models Applications

Inelastic Time- History Analysis Inelastic Time- History Analysis

Fiber Models Fiber Models

Hysteretic Models


P

D

P1(+)

P1(-)

D1(+)

D1(-)

K2(+)

K0 K0K0

K2(-)

P

D

P2(+)

P1(+)

P2(-)

P1(-)

D1(+) D2(+)

D1(-)D2(-)

K0

K2(+)

K3(+)

K2(-)

K3(-)

P

D

P2(+)

P1(+)

P2(-)

P1(-)

D1(+) D2(+)

D1(-)D2(-)

K0

K2(+)

K3(+)

K2(-)

K3(-)

Hysteresis Models - Simplified

P

D

P2(+)

P1(+)

P2(-)

P1(-)

D1(+) D2(+)D1(-)D2(-)

K0

K2(+)

K3(+)

K2(-)

K3(-)

K0K0 K0 K0



Models Applications



Hysteretic

Models


P

D

P1(+)

P1(-)

D1(+)D1(-)

P2(+)

P2(-)

D2(-)

D2(+)

P

D

P1(+)

P1(-)

D1(+)D1(-)

P2(+)

P2(-)

D2(-) D2(+)

P

D

P1(+)

P1(-)

D1(+)

D1(-)

P2(+)

P2(-)

D2(-)

D2(+)Kr(+)

Kr(-)

P1(+)

P1(-)

D1(+)D1(-)

P

DK0

K2(+)

K2(-)

( ) ( )max max, D P

( ) ( )max max, D P

Hysteresis Models - Degrading



Models Applications



Hysteretic

Models


( )gap

P

D

P1(+)

D1(+)

P1(-)

( )gap

K0

K2(+)

K0

K0 K0

K2(-)

P2(+)

D2(+)

K3(+)

P1(-)

D1(-)D2(-)

K3(-)

( )gap

P

D

P1(+)

D1(+)

P1(-)

D1(-)

( )gap

K0

K2(+)

K0

K0 K0

K2(-)

Hysteresis Models – Nonlinear Elastic & Slip

P

D

P1(+)

P1(-)

D1(+)

D1(-)

K0

K0

K2(+)

K2(-)

P

D

P2(+)

P1(+)

P2(-)

P1(-)

D1(+) D2(+)

D1(-)D2(-)

K0

K2(+)

K3(+)

K2(-)

K3(-)



Models Applications



Hysteretic

Models


Hysteresis Models – Properties

Hinge Properties

Inelastic Properties of each component.

Yield Properties

Define Hysteresis Curve by specifying yield strength or stiffness reduction ratio.

Deformation Indexes

Data required for calculating the indexes, which represent the level of deformation of an inelastic hinge



Models Applications



Hysteretic

Models


Applications

Inelastic Time History Analysis of an Extradosed Bridge

- Artificial Ground Acceleration

- Takeda Model



Models Applications



Applications


Applications

Result – Hinge Status

Hinge Status

Ductility Factor

Deformation

Force

Status of Yielding



Models Applications



Applications


Applications

Result – Hysteresis Curve of Inelastic Hinges

Ground Accleration

Hinge Status

Hysteresis Curve(Ry-My)

Hysteresis Curve(Rz-Mz)



Models Applications



Applications



Fiber Properties Fiber Division Applications

Fiber Properties



Fiber Models

Fiber Material Properties - Concrete

Kent & Park Model






Fiber Models


Japan Concrete Standard Specification

Fiber Properties






Fiber Models


Japan Roadway Specification

Fiber Properties






Fiber Models


Nagoya Highway Corporation Model

Fiber Properties






Fiber Models


Trilinear Concrete Model

Fiber Properties






Fiber Models

Fiber Material Properties - Steel

Menegotto-Pinto Model

Fiber Properties






Fiber Models


Bilinear Model

Fiber Properties






Fiber Models


Asymmetric Bilinear Steel Model

Fiber Properties






Fiber Models


Trilinear Steel Model

Fiber Properties




Fiber Division



Fiber Section Division

Fiber Section Division – RC Section

Cover Concrete - Unconfined

Reinforcing Steel

Confined Concrete







Fiber Section Division – PSC Section

Fiber Division







Fiber Section Division – Concrete Filled Section

Fiber Division







Fiber Section Division – Hollow Steel Section

Fiber Division






Fiber Model - Applications

Define Fiber Materials & Section Division

Concrete Material Model Steel Material Model

Applications






Fiber Section - Application

Result – Fiber Section

Compression

Tension

Applications





Various Damping Method

Damping Methods for Time History Analysis

Miscellaneous Miscellaneous Damping

Methods Multiple

Response

Spectrum

Analysis Initial Load for

Time History

Analysis

Modal

Mass & Stiffness Proportional

Strain Energy Proportional

Element Mass & Stiffness Proportional

Modal - User defines the damping ratio for each mode.

Mass & Stiffness Proportional - Damping coefficients are computed for mass proportional damping and stiffness proportional damping.

Strain Energy Proportional - Damping ratios for each mode are automatically calculated using the damping ratios specified for element groups and boundary groups.

Element Mass & Stiffness Proportional – Rayleigh Damping ratios are calculated using the damping ratios specified for element groups and boundary groups.

Damping

Methods

Damping

Methods Multiple

Response

Spectrum


Time History

Analysis

Multiple

Response

Spectrum

Analysis




Response Spectrum Analysis

Multiple Spectrum for Various Dampings

Damping Ratio

: 0.02, 0.03 & 0.05


Select Interpolation Method of Spectral Data




Initial Load for Time History Analysis

Define Initial Load


Select Initial Load Case:

Static Loadcase Construction Stage Loadcase Time History Loadcase

Damping

Methods Multiple

Response

Spectrum


Time History

Analysis

Initial Load for

Time History

Analysis Initial Element Force

Input the element force due to the initial load

Date post:	29-Mar-2015
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General Link Passive Vibration Control Base Isolation Applications Inelastic Time- History Analysis...

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