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DESIGN OF CIVIL STRUCTURES I n t e g r a t e d S o l u t i o n S y s t e m f o r B r i d g e a n d C i v i l E n g i n e e r i n g
Release Note Release Date : July 2017
Product Ver. : Civil 2018 (v1.1)
Enhancements
Analysis & Design 3
1) Plate Beam and Plate Column Design as per AASHTO LRFD12
2) Implementation of Plate Concurrent Forces for Moving Load & Settlement analysis
3) Addition of Concrete damaged plasticity model
4) Addition of Romania seismic code (P100-1, 2013)
5) Addition of South African Moving Load
6) Accelerating, breaking and centrifugal force in Moving Load (Eurocode and BS code)
7) Improvement on Moving Load Tracer – ψ factors (Eurocode)
8) Improvement on Detailed Report for BD21/01 Live Loading (BS Code)
9) Addition of SV-TT vehicle and improvement on wheel spacing as per BD 86/11
10) Time History Analysis of the model with Seismic Control Device
11) Improvement on Settlement & Specified Displacement Constraints
12) Auto Generation of Load Combinations as per IRC 6:2016
Pre & Post-Processing
1) Improvement on modification of Plate Local Axis in Pre-Processor mode
2) Improvement on GTS NX - Civil Link
3) Addition of Russia DB Sections for PSC Value Type
4) Concrete Nonlinear Material Properties as per IRC112 in midas GSD
17
Appendix : Time History Analysis of the model with Seismic Control Device
3
Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
1. Plate Beam and Plate Column (1D) Design Method
Plate elements can now be designed with the same method of designing conventional 1D elements such as Beam or Column as per AASHTO-LRFD12.
The plate design is performed for defined sub-domain. Member Type are chosen according to the purpose of the design. (e.g. Plate Beam (1D) : Slab Design and Plate
Column (1D) : Abutment / Sidewall Design).
Rebar Direction for the main rebar and distribution rebar can be defined using Local Coordinate System, UCS or Reference Axis.
Define Domain Define Sub-Domain
* Note : This feature is used for the calculation of Wood-Armer moment of specific direction. This will be fixed to default for Plate Design (Dir.1 = 0 deg, Dir.2 = 90 deg).
Node/Element > Elements > Define Sub-Domain
If Reference Axis is selected
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
1. Plate Beam and Plate Column (1D) Design Method
The results of plate design can be checked in table format and also both Graphic and Detail report can be outputted.
Positive/Negative Bending moment capacity, shear capacity and crack checks can be performed and the detail results can be obtained from this function.
The main target of this function is culvert and abutment. Axial force is not critical when we are designing culvert or abutment. Therefore this feature does not consider
the benefit of axial force in calculation of flexural strength. However the calculation of axial resistance is provided in checking mode.
Top and Bottom rebar data can be inputted separately for multiple locations.
Rebar can be inputted using either Number or CTC method.
The amount of rebar (As) is shown directly.
Graphic Report Detail Report
Design > RC Design > Plate Beam/Column
5
Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
2. Plate concurrent forces for Moving Load & Settlement analysis
Concurrent forces for moving load & settlement analysis are now available for following codes:
[AASHTO Standard, AASHTO LRFD, AASHTO LRFD (PENNDOT), Canada, BS, EUROCODE, Australia, Poland, Japanese, Taiwanese and Korean].
In the previous version, concurrent forces were available only for beam elements. In order to obtain concurrent forces for plate elements, the users needed to convert
moving load case into static load case using Moving Load Tracer. In the new version, by selecting [View by Max Value Item] in the context menu of Plate Forces Table,
concurrent forces can be checked in the result table without converting them into static loads.
Results > Results Tables > Plate > Force & Stress > Plate Force(UL:Local&UCS) > Right-click > View by Max Value Item
View by Max Value Item
Analysis Control
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
3. Concrete damaged plasticity model
It is possible to describe the following behavioral characteristics by using Concrete damaged plasticity model.
• Application of different yield strengths in both tension and compression.
• Degradation effect of different elastic strengths in both tension and compression.
• Stiffness restoration effect under cyclic loading.
Properties > Plastic > Plastic Material
Strain-Yield Stress Curve for Compression Behavior
Strain-Yield Stress Curve for Tensile Behavior
Define of Plastic Material with Concrete-Damage Model
Input of Plasticity Material in Material Data
1
2
3 4
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
Analysis Result of the model with Cyclic Loading
Loading pattern for cyclic loading
Input
Stress vs. strain in the cyclic loading
3. Concrete damaged plasticity model
8
Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
4. Generation of Seismic Loads as per Romanian Code (P100-1, 2013)
It is now possible to automatically generate static seismic load and response spectrum as per P100-1.
Static Seismic Load Response Spectrum
Type of Response Spectrum
- Horizontal Elastic Spectrum
- Vertical Elastic Spectrum
- Horizontal Design Spectrum
- Vertical Design Spectrum
Load > Dynamic Loads > Response Spectrum Data > RS Functions
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
5. South African Moving Load TMH 7: Part 1&2 provide very specific guidelines for moving load applications, especially based on the influence line theory.
NA load is applied as nominal distributed lane load and nominal axle load. The loaded length increment for NA vehicle could be controlled by the user for faster or
more accurate analysis.
NB24 and NB36 vehicles as well as NC vehicle with width provisions of 3m to 5m and an option whether to consider the relieving effects or not is also introduced.
Besides the standard vehicle, user defined vehicles could also be defined by editing the standard vehicles, or consider a completely different vehicle load by means of a
Permit truck.
Provision for moving load combination as per the code as well as for special bridges (like multi-level) are implemented and concurrent reactions & forces could also be
obtained.
Load > Load Type > Moving Load > Moving Load Code > South Africa
10
Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
6. Export Centrifugal, Acceleration & Braking forces (EC & BS)
It is possible to export coincidental centrifugal, acceleration & braking forces according to the Eurocode and British Standards (BD 21/01 & BD 86/11).
It is possible to import vertical, centrifugal (C), acceleration ( Longitudinal – AA & Transverse – AL) and braking ( axial – BA & lateral – BL) as different static load cases.
Results > Moving Load > Moving Tracer
Acceleration Braking
EN 1991-2 4.4.2
UK NA EN 1991-2 NA.2.18
EN 1991-1 6.5.3
BD21 Centrifugal Effects
BD86 Centrifugal Effects
BD86 Longitudinal Loading
Provided design codes
Centrifugal Export Dialog for Eurocode MCT Command Shell
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
7. Option to view Eurocode Live Loading with or without ψ factors applied
Visualization option in Results > Moving Tracer enables to show Eurocode vehicle live loading with or without applied ψ factors.
This option is applicable for all relevant Standard and User Defined vehicles under the Eurocode Moving Load Code.
Ignore ψ Factor option must be checked off in the Moving Load Case for the option to take effect.
Results > Moving Load > Moving Tracer
Example Load Model 1 without ψ factors Example Load Model 1 with ψ factors
* Note : The option will only be available for Moving Load Cases with Ignore Psi Factor checked off. This option to view ψ factors will NOT affect the analysis results
(including exported results using Write Min/Max Load to File) which will include the ψ factors.
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
8. Detailed Results of HA Lane Factors for BD 21/01 Live Loading
It is now possible to export detailed *.txt file of Loaded Length, Lane Factor, Adjustment Factor, Reduction Factor and HA Lane Factor as defined in BD 21/01 for Movi
ng Load Cases.
Results > Moving Load > Moving Tracer
Detail Result option for Moving Tracer results HA Lane Factor calculated for each loaded
lane of a moving load case
Extracts from BD 21/01
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
9. Addition of SV-TT Vehicle and Correction of Wheel Spacing According to BD 86/11
Previously wheel spacing of SV, SV-Train, and SOV vehicles were modelled by 4 equidistance wheels.
In the new version, SV-TT vehicle has been added along with the corrected wheel spacing of all vehicles as defined in BD 86/11
Load > Moving Load Code > BS > Vehicles > BD86/11 Special Load
Previous Application of SV80 Current Application of SV100
Current Application of SV TT Extract from BD 86/11 of SV TT
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
10. Time History Analysis of the Model with Seismic Control Device
It is possible to define the general link properties for seismic Control Device.
We can see the smart graph for general link or seismic devices.
The following procedure is for setting up and Display the analysis results for the seismic Control Device.
Boundary > Link > General Link > Seismic Device Properties
1 2 3
4
Click ‘Seismic Device Properties~’ Input Parameters for Seismic Device Properties Define General Link Property by Seismic Device
Display for Seismic Devices Graph
Please refer to the appendix for details.
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
11. Improve method of Settlement & Specified Displacement of Supports constraints In the previous version, when settlement load cases or specified displacement load were applied to some nodes, the corresponding nodes behaved like fixed support
even for other load cases that did not contain specified displacements. In Civil 2018 (v1.1), only the nodes to which specified displacement load case or settlement load
case are applied will behave like fixed support.
Specified Displacement
Load Case 1 : -0.5m
Specified Displacement
Load Case 2 : -0.5m
In the previous version In the new version
Load Case 1
Load Case 2
Load Case 1
Load Case 2
Load > Static Loads > Structure Loads/Masses > Specified Displacements of Supports Load > Settlement/Misc. > Settlement Analysis Data > Settlement Load Cases
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Civil 2018 (v1.1) Release Note Civil 2018 Analysis & Design
12. Auto Generation of Load Combinations – IRC 6: 2016
Previously Auto-generation of load combinations were with respect to IRC 6: 2014. In the new version, auto-generation of load combinations for verification of Structural Str
ength and Serviceability Limit State are updated with respect to latest IRC 6: 2016
Results > Load Combination > Auto Generation > IRC :6 LSD
Selecting IRC 6: LSD for Auto Load Combinations ULS and SLS Load Combinations
17
Civil 2018 (v1.1) Release Note Civil 2018 Pre & Post-Processing
1. Plate Local Axis modification in pre-processing mode
The Orientation option is now activated to change a local axis of ‘Plate’ and ‘Plane Stress’ element type.
Previously, plate local axis can be modified in post-processing mode using ‘Plate Local Axis in Results tab. This function is no longer available since new feature can re
place the previous feature.
When creating Elements
We can define a orientation by ‘Beta Angle’ or ‘Ref. Vector’
When changing Element Parameters
Display and Table for Local Axis of Plate
Beta Angle : 30
Beta Angle : 60
The modification is possible by the change of the B-angle in table
Node/Element > Elements > Create Elements > Orientation Node/Element > Change Parameters > Element Local Axis
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Civil 2018 (v1.1) Release Note Civil 2018 Pre & Post-Processing
[Export] Reactions & Displacements
[Import] Nodal Loads &
Prescribed Displacements
2. Import & Export of Nodal Results (GTS NX)
This feature allows to import and export the nodal results for nodes with defined constraints.
For exporting feature, users can opt to export results at all constraint locations or at selected constraint locations. Additionally, users can select the analysis set, step
(construction stage), result type (reaction or displacement), and result component for output.
The development allows users to import nodal results from both midas Gen or Civil.
Reactions will be imported as Nodal Forces (FX, FY, FZ) and Moments (MX, MY, MZ) and Displacements will be imported as Prescribed Displacement (Tx, Ty, Tz)
excluding rotation.
Home > Import/Export > Nodal Results (for GTS)…
Export results in .txt format
Export Nodal Results options
Analysis Results from Gen/Civil Analysis Results from GTS NX
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Civil 2018 (v1.1) Release Note Civil 2018 Pre & Post-Processing
3. Russia DB Sections for PSC Value
Properties > Section > Section Properties
Following section database of PSC Value type has been newly added: Model project "SERIES 3.503.1-81 ISSUE 7-1".
These sections are applicable for PSC composite girder design as per SP 35.13330.2011.
20
Civil 2018 (v1.1) Release Note Civil 2018 Pre & Post-Processing
3. Russia DB Sections for PSC Value
21
Civil 2018 (v1.1) Release Note Civil 2018 Pre & Post-Processing
4. Concrete Nonlinear Material Properties as per IRC112 in midas GSD
midas GSD is now updated to include material models as per IRC 112.
Scope of GSD is as follows:
Definition of any irregular cross-section
Calculation of section properties
Generation of P-M, P-My-Mz, M-M interaction curves
Calculation of Section Capacity (in flexure) and Safety Ratio based on member forces
Generation of Moment-Curvature curve
Plot of stress contours for all the cross-sections
Hinge Export from GSD
Curvilinear Model
Tools > General Section Designer
Parabola-rectangle Model
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
1. Viscous / Oil damper
As a damper type, you can set Single dashpot model, Kelvin (Voigt) model, Maxwell type.
As a dashpot type, it is possible to set linear elastic type and Elastic Bilinear and Exponential Function type.
Boundary > Link > General Link > Seismic Device Properties > Viscous / Oil damper
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
1. Viscous / Oil damper (continued)
Boundary > Link > General Link > Seismic Device Properties > Viscous / Oil damper
Damper type
Single dashpot model
Kelvin(Voigt) model
Maxwell type
Linear elastic type
Bilinear elastic type
Dashpot Type
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
1. Viscous / Oil damper (continued)
Boundary > Link > General Link > Seismic Device Properties > Viscous / Oil damper
-0.6 -0.4 -0.2 0 0.2 0.4 0.6
Deform(m)
-300
-200
-100
0
100
200
300
Force(N
)
Single Dashpot Linear Model
MIDAS
SNAP
Gen
A-Software (Japan)
Single Dashpot - linear elastic type
• Comparison with other products
Test model
Input Seismic Vibration
M = 51.0204 N/g ks = 1000 N/m Cd = 100 Nsec/m
c
M
ks d
F
Comparison of history graph
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
1. Viscous / Oil damper (continued)
Boundary > Link > General Link > Seismic Device Properties > Viscous / Oil damper
-0.3 -0.2 -0.1 0 0.1 0.2 0.3
Deform(m)
-300
-200
-100
0
100
200
300
Force(N
)
Kelvin BilinearModel
MIDAS
SNAP
Gen
A-Software (Japan)
M = 51.0204 N/g ks = 1000 N/m kd = 1000 N/m Cd = 100 Nsec/m p1 = 50 N a1 = 0.001
c
M
ks kd
d
F
Kelvin(Voigt) Model- Bilinear elastic
• Comparison with other products
Test model
Input Seismic Vibration
Comparison of history graph
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
1. Viscous / Oil damper (continued)
Boundary > Link > General Link > Seismic Device Properties > Viscous / Oil damper
-0.8 -0.4 0 0.4 0.8
Deform(m)
-200
-100
0
100
200
Force(N
)
Maxwell BilinearModel
MIDAS
SNAP
Gen
A-Software (Japan) kd
c
M
ks
d
F
M = 51.0204 N/g ks = 1000 N/m kd = 1000 N/m Cd = 100 Nsec/m p1 = 150 N a1 = 0.001
• Comparison with other products
Maxwell type - Bilinear elastic
Test model
Input Seismic Vibration
Comparison of history graph
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
2. Viscoelastic damper
The function of the viscoelastic damper was added in the characteristics of the seismic damping device.
As an analysis model, users can set up three element models and a Kelvin (Voight) model.
Boundary > Link > General Link > Seismic Device Properties > Viscoelastic damper
Kelvin(Voight) Model
Three element Model
Viscoelastic material properties :SUMITOMO GR100・SUMITOMO SR05・ SUMITOMO GR400・CST series (Japan)
Viscoelastic material properties :3M ISD111・3M ISD111H (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
2. Viscoelastic damper (continued)
Boundary > Link > General Link > Seismic Device Properties > Viscoelastic damper
SUMITOMO GR100(VS1 model) - Total Components( Elastic-plastic element + elastic element + viscous element(Voight))
m
k
c
u
gu
m
Mass = 5102.04 N/g Elastic Stiffness = 10000 N/m Undamped System
A-Software (Japan)
• Comparison with other products
Test model
Input Seismic Vibration
Comparison of history graph
29
Civil 2018 (v1.1) Release Note Civil 2018 Appendix
2. Viscoelastic damper (continued)
Boundary > Link > General Link > Seismic Device Properties > Viscoelastic damper
SUMITOMO GR400(VS4 model) - Total Components( Elastic-plastic element + elastic element + viscous element (Voight + Maxwell))
m
k
c
u
gu
m
Mass = 5102.04 N/g Elastic Stiffness = 10000 N/m Undamped System
• Comparison with other products
Test model
Input Seismic Vibration
Comparison of history graph
A-Software (Japan)
30
Civil 2018 (v1.1) Release Note Civil 2018 Appendix
2. Viscoelastic damper (continued)
Boundary > Link > General Link > Seismic Device Properties > Viscoelastic damper
SUMITOMO GR400(VS4 model) - Total Components( Elastic-plastic element + elastic element + viscous element (Voight + Maxwell))
• Comparison with other products (Comparison of history graph)
Elastic-plastic element
A-Software (Japan)
Elastic element
Viscous element (Voight)
A-Software (Japan)
Viscous element (Maxwell)
A-Software (Japan) A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
3. Steel Dampers_Bracing type / Stud type
The function of the Steel damper was added in the characteristics of the seismic damping device.
In the brace type, users can set the Hysteresis Properties of bilinear.
In the Column type, the Hysteresis Properties of the low yielding strength steel model (LY 2, LY 3) can be set.
Boundary > Link > General Link > Seismic Device Properties > Steel damper
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
3. Steel Dampers_Bracing type / Stud type (continued)
Boundary > Link > General Link > Seismic Device Properties > Steel damper
Brace type (JFE Civil Co., Ltd.)
• Double steel tube for buckling prevention
Clevis (left screw) Stiffening tube Clevis (right screw)
Base (Left Screw) Base (right Screw) Axial force tube(Filled with concrete)
(Pin Junction Type)
Joint plate Stiffening tube
end plate
Joint plate
end plate
(High Strength Bolt Joint Type)
• Hysteresis Properties
Steel Isotropic-Kinematic model /Bilinear
Degrading Model /Bilinear
Axial force tube (Filled with concrete)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
3. Steel Dampers_Bracing type / Stud type (continued)
Boundary > Link > General Link > Seismic Device Properties > Steel damper
Stud type (JFE Civil Co., Ltd.)
Stiffening stiffener
2000
~ 3
000
600
Low yield strength Steel
• Shape of Stud type • Hysteresis Properties (low yielding strength steel model (LY2, LY3))
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
3. Steel Dampers_Bracing type / Stud type (continued)
Boundary > Link > General Link > Seismic Device Properties > Steel damper
Degrading Model/Bilinear
m
k
c
u
gu
m
Mass = 51.0204 N/g Elastic Stiffness = 1000 N/m Undamped System
-1.2 -0.8 -0.4 0 0.4 0.8 1.2
Deform(m)
-150
-100
-50
0
50
100
150
Force(N
)
STEEL DAMPERBilinear Model
MIDAS
SNAP
A-Software (Japan)
• Comparison with other products
Test model
Input Seismic Vibration
Comparison of history graph
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
3. Steel Dampers_Bracing type / Stud type (continued)
Boundary > Link > General Link > Seismic Device Properties > Steel damper
Steel Isotropic-Kinematic model /Bilinear
m
k
c
u
gu
m
Mass = 51.0204 N/g Elastic Stiffness = 1000 N/m Undamped System
• Comparison with other products
Test model
Input Seismic Vibration
Comparison of history graph
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Deform(m)
-1000
-800
-600
-400
-200
0
200
400
600
800
1000
Force(N
)
HYST. DAMPERIK2 Model
MIDAS
SNAP
A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
3. Steel Dampers_Bracing type / Stud type (continued)
Boundary > Link > General Link > Seismic Device Properties > Steel damper
Low yielding strength steel model (JFE LY3)/Trilinear
m
k
c
u
gu
m
Mass = 51.0204 N/g Elastic Stiffness = 1000 N/m Undamped System
• Comparison with other products
Test model
Input Seismic Vibration
Comparison of history graph
-0.8 -0.4 0 0.4 0.8
Deform(m)
-200
-100
0
100
200
Force(N
)
HYST. DAMPERLY3 Model
MIDAS
SNAP
A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
4. Hysteretic Isolator for earthquake (MSS)
Out of the characteristics of the isolation damping device, the function of Hysteretic Isolator for vibration prevention was added.
In the multi shear spring model, you can set the Hysteresis Properties as bilinear or trilinear type.
Boundary > Link > General Link > Seismic Device Properties > Hysteretic Isolator (MSS)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
4. Hysteretic Isolator for earthquake (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Hysteretic Isolator (MSS)
Column (Linear element)
Z
y
x
Multiple shear-springs (MSS)
ΔQy
y
ΔQx
x
qi
1 4
3 i
f
f0
d0
ak0
k1
d
Y i Yq k u
1
cos
YY n
i
i
2
1
cosn
x i i
i
K k
Degrading Model /Bilinear
Hysteresis Properties
Multi-shear spring (MSS) model
Normal Model /Trilinear
Hysteresis Properties Of Multi-shear spring
Relationship between shear strength and deformation of spring
Stiffness of spring
Yield strength of spring
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
4. Hysteretic Isolator for earthquake (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Hysteretic Isolator (MSS)
Degrading Model /Bilinear
m
k
c
u
gu
m
Mass = 51.0204 N/g Elastic Stiffness = 1000 N/m Undamped System
-1.5 -1 -0.5 0 0.5 1 1.5
Deform(m)
-150
-100
-50
0
50
100
150
Force(N
)
HYST. DAMPERBilinear Model
(MSS=12)MIDAS
SNAP
A-Software (Japan)
- Num. of MSS : 12
• Comparison with other products
Input Seismic Vibration
Comparison of history graph Test model
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
4. Hysteretic Isolator for earthquake (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Hysteretic Isolator (MSS)
Normal Model /Trilinear
m
k
c
u
gu
m
Mass = 51.0204 N/g Elastic Stiffness = 1000 N/m Undamped System
- Num. of MSS : 8
• Comparison with other products
Input Seismic Vibration
Comparison of history graph Test model
-1.2 -0.8 -0.4 0 0.4 0.8 1.2
Deform(m)
-150
-100
-50
0
50
100
150
Force(N
)
HYST. DAMPERTrilinear Model
(MSS=8)MIDAS
SNAP
A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS)
Out of the characteristics of the isolation damping device, the function of Isolator for vibration prevention was added.
As seismic isolation support material, there are Lead Rubber Bearing(LRB), Natural Rubber Bearing (NRB), and Sliding Bearing Type.
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Lead Rubber Bearing(LRB)
Horizontal performance
Vertical performance
Horizontal performance
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Lead Rubber Bearing(LRB)
[Rule 1] : Elastic Range( ) e e
Kd
• History Graph
e : Elastic Limit Strain
0.0 0.1, 0.05 e eDefault
0e
e
FK
0.43 0.410.7792 2.0354S S
e k e p e q e dF K Q
[Rule 2, 3]
p d
S S S
K p Q dF C K C Q
p
u d
S
d K p
K K
K C K
: Ratio of Yield Stiffness and Unloading Stiffness (=10∼15)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Natural Rubber Bearing (NRB)
Horizontal performance
Vertical performance
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Horizontal performance
Vertical performance
Sliding Bearing
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Natural Rubber Bearing (NRB)
m
k
c
u
gu
m
Mass = 51.0204 N/g Elastic Stiffness = 1000 N/m Undamped System
- Axial Component(Num. of MSS : 8)
-2E-007 -1E-007 0 1E-007 2E-007 3E-007
Deform(m)
-250
-200
-150
-100
-50
0
50
Force(N
)
ISOLATORNRB Model
Axial Comp.MIDAS
SNAP
A-Software (Japan)
• Comparison with other products
Input Seismic Vibration
Comparison of history graph Test model
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Natural Rubber Bearing (NRB)
m
k
c
u
gu
m
Mass = 51.0204 N/g Elastic Stiffness = 1000 N/m Undamped System
- Shear Component(Num. of MSS : 8)
• Comparison with other products
Input Seismic Vibration
Comparison of history graph Test model
-0.0004 -0.0002 0 0.0002 0.0004
Deform(m)
-250
-200
-150
-100
-50
0
50
100
150
200
250
Force(N
)
ISOLATORNRB Model
Shear Comp.MIDAS
SNAP
A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Lead Rubber Bearing (NRB)
m
k
c
u
gu
m
Mass = 5102.04 N/g Elastic Stiffness = 1000 N/m Undamped System
- Axial Component(Num. of MSS : 12)
• Comparison with other products
Input Seismic Vibration
Comparison of history graph Test model
-0.002 -0.001 0 0.001 0.002
Deform(m)
-2000000
-1500000
-1000000
-500000
0
500000
Force(N
)
ISOLATORLRB Model
Axial Comp.MIDAS
SNAP
A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Lead Rubber Bearing (NRB)
m
k
c
u
gu
m
Mass = 5102.04 N/g Elastic Stiffness = 1000 N/m Undamped System
- Shear Component(Num. of MSS : 12)
• Comparison with other products
Input Seismic Vibration
Comparison of history graph Test model
-0.3 -0.2 -0.1 0 0.1 0.2
Deform(m)
-300000
-200000
-100000
0
100000
200000
Force(N
)
ISOLATORLRB Model
Shear Comp.MIDAS
SNAP
A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Elastic Sliding Bearing (SLD)
m
k
c
u
gu
m
Mass = 5102.04 N/g Elastic Stiffness = 1000 N/m Undamped System
- Axial Component(Num. of MSS : 12)
• Comparison with other products
Input Seismic Vibration
Comparison of history graph Test model
-0.002 -0.001 0 0.001 0.002 0.003
Deform(m)
-1600000
-1200000
-800000
-400000
0
400000
Force(N
)
ISOLATORSLD Model
Axial Comp.MIDAS
SNAP
A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
5. Isolator (MSS) (continued)
Boundary > Link > General Link > Seismic Device Properties > Isolator (MSS)
Elastic Sliding Bearing (SLD)
m
k
c
u
gu
m
Mass = 5102.04 N/g Elastic Stiffness = 1000 N/m Undamped System
- Shear Component(Num. of MSS : 12)
• Comparison with other products
Input Seismic Vibration
Comparison of history graph Test model
-1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
Deform(m)
-120
-80
-40
0
40
80
120
Force(N
)
ISOLATORSDL Model
Shear Comp.MIDAS
SNAP
A-Software (Japan)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
6. Seismic Control Device DB Manager
A Program for Seismic Control Device DB (Seismic Control Device DB manager) was installed.
This program has the product group of each maker of Seismic Control Device.
The users can register a new DB using the "user definition" function.
From Seismic Control Device DB, you can set the properties of the product directly in the midas Civil.
Boundary > Link > General Link > Seismic Device Properties > Seismic Control Device DB Manager
In Release version, only DB for viscoelastic damper is provided.
Not supported
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
7. Improvement of functions related to time history analysis
‘Smart Graph’ has been added as a confirmation for results of time history analysis.
When ‘Smart Graph’ compared with existing graph function, ‘smart graph’ can visually confirm analysis result with easier operation.
In Smart Graph, various functions such as ‘Energy’ output, animation, display option(table, Background Graph, Symbol) etc. can be used.
In Smart Graph, analysis results of general-purpose link elements and Seismic Control Device can be confirmed.
(The output of nonlinear results of each member will be installed in the second half )
Result > Time History > T.H. Result > Time History Smart Graph
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7. Improvement of functions related to dynamic analysis (continued)
Result > Time History > T.H. Result > Time History Smart Graph
Time history Smart graph
Energy output (Energy dissipation amount)
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Civil 2018 (v1.1) Release Note Civil 2018 Appendix
7. Improvement of functions related to dynamic analysis (continued)
Result > Time History > T.H. Result > Time History Smart Graph
Time history response analysis smart graph
Animation & Display Option (table, background graph and symbol)