midas Civil

INTEGRATED SOLUTION SYSTEM FOR

BRIDGE AND CIVIL ENGINEERING

midas Civil
Integrated Solution System
for Bridge and Civil Engineering

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Unique modelling tools

Specialized on high-end analysis

Advanced bridge wizard such as Box Culvert, FCM,

ILM, FSS, MSS, Grillage, Cable Stayed Bridge Wizard

Segmental post-tensioning including prestress losses

and camber results

Powerful moving load optimizer

Cable force tuning in forward stage analysis and

suspension bridge analysis with geometric nonlinearity

Auto-generation of rail track analysis models

Unique

Specialization

Accurate seismic performance

reecting nonlinear
properties

Why
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Practical design features

Practical modelling features such as SPC, Tendon
Template and Transverse Model Wizard
RC/Steel/PSC/Composite section design as per
Eurocodes, AASHTO and other standards
Bridge load rating for PSC box and composite girder

Maximized productivity

Practical

Productivity

User-friendly GUI with high speed graphic engine

Presenting input data in Works Tree and manipulating
the data by Drag & Drop
Excel compatible input & output tables
Automatic generation of analysis and design reports

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

1. Innovative User Interface

Stretch your imagination & extend your ideas without restrictions.
midas Civil will help you achieve the goals.
Works Tree

Ribbon Menu

Icon Toolbars

Context Menu

Full graphical representation

of all shapes

Task Pane
A new concept tool, which enables the user to
freely set optimal menu systems

Display of line & plane type

section shapes
Combined analysis results &
design display

A new concept menu system comprising

frequently used menus
Procedural sequence dened by the user
for maximum efciency
Links to corresponding dialogue boxes
for ease of checking input data

Walk Through Mode

Model rendering provided in various view points

Hidden view processing of

a user-specied section

Ease of modelling in Civil

Data input via main menu ribbon interface
Quick mouse access from context menu
Modelling by command input
Tabular data entry directly from excel
Dynamic interaction between works tree
and model window

Command Line
Modelling function similar to autoCAD commands
Modelling by one key commands

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Output Window

Tables

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

2. Optimal Solutions for Bridges

Design process for bridges

One stop solution for practicing bridge engineers

With RC, steel, PSC and Composite design

Reinforced concrete design

(beam / column)
RC design as per Eurocode 2-2, AASHTO LRFD and other codes

Analysis

Design

Optimal solution provided for analysis & design

Iterative analyses for calculating optimal sections & rebars

Column checking for user-dened sections
Design check for maximum forces with corresponding force components

Iterative Process

Modelling

Analysis

Design

RC Design
s Beam / column section check
s Irregular column section design
s Auto-recognition of braced
conditions of columns

Steel Design
s Stress calculations for
user-defined sections

Composite Steel
Girder Design

PSC Design

Composite PSC Design

s Flexural Strength Check

s Flexural strength check

s Coming Soon

s Vertical Shear Resistance Check

s Shear strength check

s Combined stresses due to

axial & bending
(all sections in database)

s Lateral Torsional Buckling

Resistance check

s Torsional strength check

s To handle PSC -I and T girders

with concrete decks of
different grades

s Combined stresses due to

bending & shear
(all sections in database)

s Design check with rebars,

transverse and longitudinal
stiffeners

s Steel section Optimisation

s Fatigue strength check

Optimised Design

s Reinforcing steel calculation

& tendon check
s Summary of construction
stage results
s Crack Width limit check

RC section check summary report

RC section check detail report

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

2. Optimal Solutions for Bridges

Steel design

Dynamic report generator

Steel combined stress check as per Eurocode 3-2, AASHTO LRFD and other codes

midas Civil enables the user to auto-generate an MS Word report using analysis and design results

Stress checks for user-dened sections

All the input and output data can be plotted (ie. material properties, section properties, reactions, member

Automatically searches for the optimized steel section with minimal section area

forces, displacements, stresses, section verication results, etc.) in a diagram, graph, text or table format

(minimal weight) whilst satisfying the design strength checks

The report updates itself automatically when changes are made in the model

Section types in database

User-dened irregular sections

Reporting dynamic images

MS Word report
Reporting dynamic input/output tables

Graphical results of stress checks

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

3. Composite Girder Bridge Design

Composite action with
construction stage analysis

Procedure and main features for

steel composite girder bridge design

Composite action with

construction stage analysis

Main Girder Check

Stiffener Check

Shear Connector
Check

Cross Frame /
Bracing Check

Design Report

Automatic generation of steel composite girder bridge model

- Straight, curved and skewed bridge
- 3D bridge model with piers, abutments and cross frames
- Automatic generation of construction sequence with composite action
- Easy generation of non-prismatic tapered sections over the entire or partial spans
Automatic calculation of effective width for composite section
Cracked section option to ignore concrete deck stiffness in negative exure region
3D Cross frame modeling for accurate design
Automatic calculation of member forces and stresses separately for steel girder and concrete deck
Stage-wise stress check during composite construction
Automated check of composite girder bridges with concrete deck as per Eurocode 4-2 and AASHTO LRFD
- Steel I-girder, tub and box girder bridges
- Checks for uniform and hybrid steel girder
- Composite girder checks for main girders, longitudinal stiffeners, transverse stiffeners and
shear connectors
- Steel code checks for cross frame / bracing
- Cross section proportion limits, constructability, service limit state, strength limit state, stiffeners and
shear connectors
Bridge load rating for existing bridges as per AASHTO LRFR
- Standard vehicles, user dened vehicles, legal vehicles and permit vehicles
Detailed calculation report for analysis, design and rating

Built-in composite section data

Effective width scale factor

Composite section for construction stage to

simulate composite action with 1-D element

Reinforcement and
longitudinal stiffener data

Applicable functions can be changed upon design code

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

3. Composite Girder Bridge Design

Steel & PC Composite Girder bridge wizard

Fast modelling of steel I, box, tub and PC composite bridges using wizard

Easy generation of tapered girder

4 types of model generation

Denition for transverse deck element spacing by number of division per span or distance

- All plate model

X bracing, V bracing, inverted V bracing and single beam cross frame

- All frame model

Dead load before composite and after composite action with quick generation of live load

- Deck as plate & girder as frame

Easy generation of tendon using tendon template

- Deck & web as plate, anges as frame

Automatic generation of construction stage considering deck pouring sequence

Multi-curve and different skew angle by support positions

Long term effect by applying 3n in elastic modulus after composite action

Inclination in bridge deck

Resultant forces at every 10 points per span

Pier and abutment modelling

FE model of steel I composite girder bridge

All frame model of steel I composite girder bridge

Dead and live load denition

Dening bridge layout with span

information and bearing data

All frame model of PC I composite girder bridge

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

3. Composite Girder Bridge Design

Useful features suited for
composite girder bridge design
Resultant forces for 3D FE model

Generation of irregular shape composite section

Calculation of resultant forces on a selected region in beam, plate and solid elements

Generation of general shape composite section using SPC

Resultant forces for unstructured meshes

Composite tapered section with general shape is supported

Table and text format output by load cases / combinations

Construction stage analysis to simulate composite action by parts

SPC (Section Property Calculator)

Resultant forces in the table and text format

Before composite action

After composite action

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

3. Composite Girder Bridge Design

Steel composite girder check

Steel composite girder rating

Automatic steel composite girder check

Automatic steel composite girder rating

Composite girder check as per Eurocode 4-2, AASHTO LRFD and other specications
Automatic generation of load combinations
Constructability, strength, service and fatigue limit state checks
Main girders, longitudinal stiffeners, transverse stiffeners, shear connectors, braces and cross frames
Excel format calculation report, spreadsheet format table and design result diagram

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Steel composite bridge load rating as per AASHTO LRFR

Strength, service and fatigue limit state rating
Design live load, legal load and permit load evaluation
Adjustment factor resulting from the comparison of measured test behavior with the analytical model
Member resistances and allowable stresses in accordance with AASHTO LRFD
Excel format calculation report and spreadsheet format table

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

3. Composite Girder Bridge Design

Main features for
PC composite girder bridge design
UK and Italy PSC section database for composite sections
Quick generation for PSC general shape composite section in Section Property Calculator
Easy and fast generation of strands/tendons using Tendon Template
Considering longitudinal rebars and tendons in section stiffness calculation
Construction sequence with time dependent behaviour of concrete
Automatic calculation of member forces and stresses separately for PC girder and concrete deck
Stage-wise stress check during composite construction
Immediate and time-dependent prestress losses by tendons (Graph & Tables)
PSC composite girder design as per Eurocode 2-2 and AASHTO LRFD
Detailed calculation report for analysis and design

Tendon template wizard

Quick generation of PSC composite section

PSC composite girder design

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

Integrated solution for practical PSC bridge design

(Longitudinal & transverse direction analysis and strength checks)

4. PSC Bridge Design

Procedure and main features for
PSC bridge design
Global analysis
along the spans

Transverse
analysis

Strength check

Automatic generation of
transverse analysis model
Integrated solution
for PSC bridge design

Global
analysis along
the spans

Transverse
model
generation

Partial
modification
of model data

End
of design

RC design

Construction stage analysis reecting change in elements, boundary conditions & loadings

Auto generation of transverse analysis models through global analysis models

Creep & shrinkage calculation based on codes

Transverse analysis model generation wizard & auto generation of loading and boundary conditions

Time dependent steel relaxation (CEB-FIP, Eurocode, Magura & IRC112)

(transverse tendon assignment)

Irregular sections displayed to true shapes

Automatic placement of live load for transverse analysis

Automatic positioning of loadings for plate analysis

3D/2D tendon placement assignment

(lumped representative tendon analysis)

Section check using RC / PSC design function

Strength check to Eurocode, AASHTO LRFD and other codes

Connement effect of rebars considered for creep

BCM Bridge

Auto-calculation of section properties

considering effective width
Easy generation of non-prismatic tapered sections
over the entire or partial spans
Beam stress check for PSC bridges

Dening positions for transverse analysis

Transverse analysis model wizard

Automatic reaction summary at specic supports through

staged launching in ILM bridges

Generation & analysis

of a transverse model

Compression-only element provided for modelling

temporary supports & precasting platform
Completed state analysis reecting effective width by
construction stages
Special type of PSC bridge analysis (extradosed bridge)
Automatic generation of transverse analysis model
RC design of irregularly shaped columns
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Extradosed Bridge

RC Design Result Table

Text Design Report

Detail Design Calculation Sheet

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

4. PSC Bridge Design

Modelling features suited for
practical design
Modelling PSC bridges of irregular sections using Section Property Calculator

Convenient auto generation of tapered sections (change in thicknesses of top/bottom anges and

PSC bridge wizards (BCM, ILM, MSS & FSM): user-dened tendons & sections possible

web separately considered)

Construction stage analysis and completed state analysis reecting auto calculated effective width
Exact 3D tendon and simplied 2D tendon placements

Display and design of irregular sections

Auto generation of non-prismatic

tapered sections

Automatic calculation
of effective width

Irregular section dened by user using SPC

PSC wizard reecting design practice

Auto generation of
tapered sections
based on bridge spans

Automatic calculation of
effective width for PSC bridges
Schedule-based input of rebars

Lumped representative tendon analysis

Tendon prole input and real-time display

3D tendon prole placement

2D placement of tendons using
the representative tendon function
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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

4. PSC Bridge Design

Automatic strength check

Various analysis results for

practical design

Eurocode 2-2, AASHTO LRFD and other specications

Separate immediate and time-dependent tension losses by tendons (graphs & tables)

Bending strength, shear strength & torsional strength checks

Generation of tendon weights and coordinates (calculation of tendon quantity)

Transverse rebars check and resistance & factored moment diagrams

Normal / principal / shear / inclined stresses using PSC Stress Diagram command

Stress check for completed state by construction stages

Generation of erection cambers

Generation of member forces & stresses by construction stages and maximum &

Summary of reactions at specic supports in ILM bridges

minimum stresses summary

Excel format calculation report (Crack Control check as per Eurocode)
Tendon loss graph

Design parameters for strength check

Tension losses in tendons

PSC bridge-specic stress diagrams

Maximum normal stress distribution for a PSC bridge

Bending strength
check
Principal stress distribution for a PSC bridge

Analysis results table

Analysis results graph

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PSC bridge-specic stress output

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

4. PSC Bridge Design

Special type of PSC bridges

Construction stage analysis reecting time-dependent material properties and pretensioning forces

Compression-only element provided to reect the effects of temporary bents

External type pretension loads provided for inducting cable tensioning forces

Calculation of section properties of an irregular section using AutoCAD and SPC

Calculation of normal / principal / inclined stresses using the Beam Stress (PSC) command

Construction stage analysis of an extradosed bridge (BCM)

1

Construction stage analysis of an extradosed bridge (FSM)

2

Analysis results of a completed state model

Construction stage analysis - tower erection

Construction stage analysis

- staged construction of girders

Construction Stage Analysis

Control dialogue box

Construction stage analysis - FSM

Construction stage analysis - cable erection

Construction stage analysis - cable erection

Completed state model

Construction stage analysis - removal of shoring

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

4. PSC Bridge Design

Grillage analysis model wizard

Prestressed multi-celled box girder bridges

Grillage analysis model wizard automatically converts wide multi-celled PSC box girder sections into
a grillage mesh of longitudinal and transverse elements to perform a grillage analysis
Both slab based and web based divisions are supported to automatically calculate the section
properties such as total area, transverse shear area, torsional moment of inertia, etc for
the longitudinal and transverse beam elements

Multi-celled box girder bridge grillage model completed with prestressing tendons and
boundary conditions

Slab Based Division

The grillage analysis wizard supports tapered bridges with horizontal curvatures, multiple types of
spans, user dened bearing conditions, diaphragm and bent denition, auto live load generation,
auto-placement of tendon proles and reinforcement denitions
Web Based Division

midas Civil

Dening bridge layout with span

information and bearings data

Transverse member and

bent cap denition

Tendon and reinforcement auto-generation

Permanent and variable actions denition

with trafc lane arrangement

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

5. Cable bridge analysis

Optimal solution for cable bridge analysis (completed state

& construction stage analysis with advanced analysis functions)

Optimal solution for

cable bridge analysis

Cable Stayed Bridge

Initial equilibrium state analysis for

cable stayed bridges
Initial equilibrium state analysis
Cable nonlinearity considered (equivalent truss,
nonlinear truss & catenary cable elements)

Calculation of initial pretensions for cable stayed

bridges & initial shape analysis for suspension bridges
2

Construction stage analysis reecting

geometric nonlinearity
Finite displacement method (P-delta analysis by construction stages and for completed state)

Behaviours of key segments in real construction

reected

Large displacement analysis reecting creep &

shrinkage

constraints

Generation of optimal cable pretension forces

satisfying design constraints
1

Optimum solutions produced by an optimisation theory based

on object functions

Solutions obtained by simultaneous equations if the numbers

of constraints and unknowns are equal

Large displacement method (independent models for backward analysis & forward construction stage)

Auto generation of construction stage pretensions

using the tensions in the completed state
(linear & nonlinear)

Optimal initial pretensions generated to satisfy desired girder, tower & cable force and displacement

Optimum stressing strategy

Completed state analysis & tower
/ girder design
Linearised nite displacement method & linear elastic
method
Linear buckling analysis / moving load analysis / inelastic
dynamic analysis
Steel column design of irregular sections

Suspension Bridge

Backward construction stage analysis using internal

member forces (reecting large displacement)

Auto calculation of tensions in main cables and

coordinates for self-anchored and earth-anchored
suspension bridges

Ideal dead load force diagram assumed

Detail output for suspension cables (unstressed lengths,

sag, etc.) & detail shape analysis

6
6

Steel column design of irregular sections

Initial equilibrium state analysis results satisfying constraints

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

5. Cable bridge analysis

Construction stage analysis for
cable stayed bridges
Forward staged analysis using the pretensions in the completed state

Forward staged analysis based on application of constraints

Auto calculation of erection pretensions by entering only the pretensions of the completed state &
adding Lack of t force without having to perform backward analysis
Applicable for both large displacement and small displacement analyses
Initial equilibrium state analysis reecting the behaviours of the closure of key segments during erection
Auto calculation of construction stage pretensions accounting for creep & shrinkage

Calculation of cable pretensions by construction stages satisfying the constraints for the completed
state
Auto-iterative function provided to reect creep & shrinkage
Superb convergence for calculating unknown load factors using simultaneous equations &
object functions

STEP 01. Calculation of pretensions using

Unknown Load Factor

Procedure for a construction stage analysis

Construction Stage

Unit pretension loads applied

Iteration

Unknown Load Factor

Optimal tensions in cables found
satisfying constraints

STEP 02. Forward stage analysis for a cable stayed bridge using the pretensions
of the completed state and Lack of t force
1

Assignment of constraints & calculation of unknown

load factors for each stage (good convergence)

Construction Stage
Re-analysis of construction stage
reecting inuence factors

Check
Analysis of results for each construction stage

Construction stage analysis results

- initial erection

Construction stage analysis results

- cantilevers erected

End

Construction stage analysis results

- closure of side spans

Set up constraints and unknowns

Load Factors found

Iteration control

Construction stage analysis results

- immediately before centre span closure

5
Construction stage analysis results
Construction stage analysis results
- nal stage
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Completed state analysis results

- Moment

Analysis results of the completed state

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

5. Cable bridge analysis

Construction stage analysis of
self anchored suspension bridges

Construction stage analysis of

earth anchored suspension bridges

Accurate analysis with initial member forces to reect the behaviour of a self anchored suspension
bridge subjected to axial forces in girders
Typical construction methods applicable for self anchored suspension bridges such as hanger
insertion and Jack-down construction methods
0.002m

Accurate analysis of initial

shape performed to satisfy
the coordinates of towers and sags

0.004m

Initial tension forces in cables of a suspension bridge

Backward construction stage analysis - large displacement analysis

1

Initial shape analysis

Initial tension forces of a self anchored suspension bridge

Backward construction stage analysis - large displacement analysis

1 Final Stage

2 Stage 05

Removal of superimposed dead load

3 Stage 04

4 Stage 03
Removal of side span girders

5
5 Stage 02

Removal of main span girders

Removal of side span girders completed

6 Erection bents,
main cables &
girders installed
Removal of main span girders

Removal of hangers & setback calculation

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

6. Nonlinear analysis

Seismic & earthquake resistant system and seismic performance

Evaluation for bridges using high-end nonlinear analysis

Nonlinear analysis process

in midas Civil

Pushover analysis

Nonlinear seismic analysis and

performance evaluation for bridges

Analysis model data

Checking the status of safety limits of a system, which has been considered with dynamic behaviours
Nonlinear material properties & plastic hinge properties
of members
(hysteresis models, yield strengths, PM interaction &
post yielding behaviour properties)

Approximate dimensions / section profile

/ material properties

Finite elements (beam, column, plate & solid)

Inelastic spring properties (stiffness, effective damping
ratios & hysteresis properties)

Structural model of a bridge

Static loads & inelastic response spectrum

(damping & ductility ratio)
Acceleration time histories & artificial seismic waves)

Basic seismic design

Nonlinear static analysis

(pushover analysis)

Performance

Definition of input loads

Displacement control

Boundary nonlinear
analysis

Load control
Seismic control
Viscoelastic
Hysteretic

Seismic performance
evaluation

Effective Damping
Ductility

LRB
FPS
Effective stiffness
/effective damping device
hysteretic properties

Damping
Time Step

Inelastic response spectrum

Seismic isolation

Seismic isolation

Inelastic time history

analysis

Direct integration

Response evaluation
Staged reactions, member
forces, stresses, displacements,
plastic hinge distribution
& system displacement ductility

Nonlinear modal analysis

Runge-Kutta method
Response evaluation
Eigenvalues (natural frequencies)
Seismic isolator & damper hysteresis loops,
Displacement, velocity & acceleration time history

midas Civil

Capacity spectrum method provided to efciently evaluate nonlinear seismic response & performance

Process of pushover analysis

Load control & Displacement control methods

Gravity load effects considered

Static analysis
& member design

Pushover analysis reecting P-delta effects

Various load patterns supported (Mode Shape / Static Load /
Uniform Acc.)

Load control or
displacement control

Analysis results checked by pushover steps (hinge status /

distribution, displacements, member forces & stresses)

Inelastic properties
of members

Capacity spectrum method

Various types of capacity curves supplied

Pushover analysis

Demand spectrums supplied for each design standard

Beam-Column
Lumped Hinge Type
Distributed Hinge Type

Newmark -
- Linear acceleration method
- Average acceleration method
Response evaluation
Displacement, velocity & acceleration time history
Inelastic hinge distribution
Member curvature & rotational ductility

Seismic performance evaluated using Performance Point

Capacity of
a structure evaluated

Auto generation of plastic

hinge properties

Performance points
found by demand curves

Satisfactory
performance

No

Yes
Evaluation
of seismic performance

Accurate behaviour analysis using nonlinear

seismic response of a bridge
Seismic performance
evaluation

Structural inelastic behaviours & resistance capability calculated efciently

Inelastic element

Spring, Truss
Capacity spectrum method
Displacement coefficient method
Displacement based design method

& load redistribution, after yielding

Seismic resistance
& isolation system evaluation

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Capacity spectrum method

Accurate seismic
safety evaluation

Various plastic hinge models

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

6. Nonlinear analysis
Boundary nonlinear analysis

Analysis capabilities for

dampers & base isolators

Structural analysis function including nonlinear link elements (General Link)

Dampers, base isolators & inelastic elements simultaneously considered in nonlinear time history

Structural analysis using spring elements having nonlinear properties (Inelastic Hinge Property)

analysis (nonlinear direct integration method)

Various dampers & base isolators (Gap, Hook, Viscoelastic Damper, Hysteretic System, Lead Rubber

Good convergence by Runge-Kutta method (Step Sub-Division Control & Adaptive Stepsize Control)

Bearing Isolator & Friction Pendulum System Isolator)

Static loads converted into the form of dynamic loads (Time Varying Static Loads)

Lead Rubber Bearing

Viscoelastic
Damper

Friction Pendulum System

Hysteretic System

Lead Rubber
Bearing
Isolator

Hysteretic System

Friction Pendulum System Isolator

Viscoelastic Damper

Runge-Kutta method analysis condition

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

7. Moving Load Optimiser

Generation of influence lines and surfaces for multiple lanes

of traffic to produce the most adverse live load patterns

Moving load analysis

pre-processor

Moving load analysis

post-processor

Easy and multiple lane generation techniques along any type of curvilinear path
Load models and vehicles from Eurocode, AASHTO LRFD, BS and other specications
Highway trafc loads, railway trafc loads and footway pedestrian loads can be combined
automatically for moving load analysis
Construction stage analysis and moving load analysis can be done in the same model
Special vehicles can be made to straddle between two lanes

Trafc line lane with crossbeam type load distribution

Motorway vehicles
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Trafc surface lane for shell elements

Rail loads

Auto moving load combination

considering straddling of axles
between two lanes for special vehicles

Fast generation of analysis results using clever result ltering techniques that saves physical
memory and time
Combined member force checks are possible due to availability of corresponding force components
for the max/min force effects. Eg: At maximum bending moment, combined shear + bending result
can be seen
Moving load tracer displays the adverse live load pattern for all vehicle combinations
Moving loads can be converted into equivalent static loads for detail analysis

Concurrent force table for a given max/min

force component due to live load

Inuence line diagram for bending moment

Vehicular loads converted to

equivalent static loads for detail analysis

Moving load tracer diagram to identify the adverse location of

vehicle for minimum / maximum force & bending moment

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

8. Soil-Structure Interaction

Automatic modelling of soil-structure interface facilitating

the analysis of integral bridges and box culverts

Integral bridge and culvert wizard

Integral bridge spring supports

Built-in wizard for RC frame/box culvert can model a 3 dimensional plate model of box culverts with
all boundary conditions and ground pressure loads
Auto calculation of soil springs from simple modulus of subgrade reaction input
Automatic calculation of earth pressure loads considering the submerged condition of soil and
the ground water level

Nonlinear soil behaviour can be automatically modelled

Soil structure interaction around the abutment and pile can be simulated by entering basic
geotechnical inputs
Stress distribution along the depth of the abutment can be visualised
Detail analysis with soil models can be performed using midas GTS
Dynamic soil structure interaction can be assumed with general links with 6x6 stiffness,
mass and damping matrices to represent the foundation impedance of the substructure

Integral abutment nonlinear soil spring supports

Box culvert wizard

Integral bridge (frame) wizard

6x6 mass, stiffness and damping matrices to
simulate dynamic soil-structure interaction

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midas Civil
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Additional Options and Modules

25

Option 1

Heat of Hydration Analysis

26

Option 2

Material Nonlinear Analysis

27

Option 3

Inelastic Time History Analysis

28

Module 1

FX+ Modeler

29

Module 2

GSD (General Section Designer)

30

Module 3

Rail Track Analysis

31

Module 4

AASHTO Composite Girder Design

DESIGN OF CIVIL SRUCTURES

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

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INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

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Option 1. Heat of Hydration Analysis

Heat of Hydration Analysis

Definition of heat source of concrete

Heat transfer analysis

midas Civil provides heat of

hydration analysis capabilities
through heat transfer and heat
stress analyses. Heat of hydration
analysis by construction stages
reects the change in modulus of
elasticity due to maturity, effects of
creep/shrinkage, pipe cooling and
concrete pour sequence.

Denition of
heat transfer

Denition of
ambient temperature

Calculate stress
using temperature
load obtained from
heat transfer analysis
Initial temperature,
exothermic temperature,
and conduction

Convection limit and

prescribed temperature

Temperature distribution based on the placement height

Analysis Flow

Dene heat source of concrete to model the amount of

heat generated during hydration

Denition of
material properties

Definition of material properties of concrete

Stage 1

Denition of
boundary conditions

Stage 2

Stage 3

Various types of analysis results

Input of analysis condition

Heat transfer and

heat stress calculations

NG

f sp (t ) c f cu (t )

Compressive strength of concrete

Crack index check

OK
Analysis results

Tensile strength of concrete

Consideration of various parameters for accurate crack index analysis

Adiabatic temperature rise considering maximum adiabatic temperature(K) and
relative velocity coefcient(a)
Creep/Shrinkage, compressive strength data base / Heat source function by code
Changes in ambient temperature and convective coefcient
Various convective coefcient depending on the existence, type and thickness of
formwork, curing method, and wind velocity

Temperature during construction stage

Stress during construction stage

Various results considering placement sequence

Pipe cooling to reduce cracks
Control of temperature for the use of ice plant by dening initial temperature for
newly activated elements at a corresponding construction stage

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

midas Civil

Bridging Your Innovations to Realities

Option 2. Material Nonlinear Analysis

Material Nonlinear Analysis

Material nonlinear properties

Simultaneous analysis of geometric and material nonlinearity

Material nonlinear analysis is high

end analysis function to represent
nonlinear behaviours of structures
after elastic limits.
Analysis Flow
Denition of
Nonlinear material model

Ductile material

Brittle material

Nonlinear analysis control

Analysis results
Nonlinear static analysis of
material nonlinearity

Load Step 3

Evaluation of yielding stress

and deformation

Load vs displacement
Von-Misses stress & deformed shape

Various hardening models which dene the behaviours from the elastic limits to
maximum stress points (Isotropic hardening, Kinematic hardening &
Mixed hardening)
Various failure models frequently encountered in civil engineering practice
Good convergence for nonlinear analysis using shell elements, which reect large
displacements & large rotations

Stress contour & yield status

Material & geometric nonlinear analysis functions to carry out detail analyses of
steel structures consisting of steel box, steel plate & I-beam sections
View function supported to display plastic zone and identify the status of yielding at
integration points
Animation function provided to examine rather large deformation & stress
redistribution in real time

26

27

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

midas Civil

Bridging Your Innovations to Realities

Option 3. Inelastic Time History Analysis

Inelastic Time History
Analysis
For the seismic design and
assessment of a structure, midas
Civil offers a wide range of
hysteresis hinge models such as
kinematic hardening, Takeda, slip,
etc. in the inelastic time history
analysis.

4 Hinge type models

Inelastic concrete material model

Lumped Type Hinge

Distributed Type Hinge

Spring Type Hinge

Truss Type Hinge

Inelastic hysteresis models

Uni-axial hinge model

Kent & Park / Japan Concrete Standard Specication / Japan Road Bridge Specication /
Nagoya Highway Cooperation / Trilinear Concrete / China Concrete Specication(GB50010-02) /
Mander Model

Inelastic steel material model

Multi- axial hinge model

Over 20 hinge models including bilinear, tri-linear,

Menegotto-Pinto / Bilinear / Trilinear Steel / Asymmetrical Bilinear / Park /

Japan Roadway Specication Model

Clouhg, Slip, Multi-linear, Takeda and Kinematic, etc.

Translational hardening type model / bre model

Analysis Flow
Static analysis and
design of members

Denition of
inelastic hinge properties

Dene earthquake load

Inelastic time history analysis

Analyze Inelastic response

and behavior
Various hysteresis models

Evaluation of Seismic
performance and safety

Automatic denition plastic hinge

Evaluation of performance in earthquake

Over 50 built-in earthquake acceleration records in DB & import of articial seismic
waves
Versatile nonlinear analysis results (hinge distribution, max. & min. displacement /
velocity / acceleration, time history graphs & simulations)

Check of section damage

Versatile inelastic hysteresis models

Limitation of nonlinear hinge models eliminated, which are based on experience
such as pushover analysis, seismic analysis, etc.
Change in axial forces accurately reected through bre models in structures
whose axial forces change signicantly
Accurate representations of connement effects of tie reinforcing steel, crashing
and cracking in concrete members and tensile yielding in steel members under
nonlinear analysis

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

midas Civil

Bridging Your Innovations to Realities

Module 1. FX+ Modeler

Auto, mapped and manual meshing

FX+ Modeler
midas FX+ Modeler can create
complex geometric data for
accurate FE modelling.
midas FX+ Modeler is capable of
modelling any complex conguration encountered in civil structures
and industrial facilities. Generated
meshes can be produced in various
types of data les that are fully
compatible with midas Civil.

Mesh
generators

Application Areas

CAD data
exchange
(STEP, IGES)

Geometry
modeller

Civil / Geotechnical

midas FX+
Modeler

Automotive / Aerospace
Geometry modelling and clean-up

Marine / Offshore

Imported CAD geometry

Generated mesh

Consumer Products

FEM
pre-processor

Research / Education

Constraint

Graphic
display
Convert
1D frame to
planer /
solid elements

Spatially varying pressure

midas Civil

Wireframe

FX+ modeler

Shading & transparency

28

29

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

midas Civil

Bridging Your Innovations to Realities

Module 2. GSD (General Section Designer)

General Section Designer

Step 1

Safety checks for any irregular RC,

steel, composite section
Denition of any irregular crosssection and calculation of section
properties

General Section Denition in GSD

Export to midas Civil

Step 2

Export General Section & Section

Properties from GSD to midas Civil

Step 3

Perform Analysis and Design

in midas Civil

Mander model to dene nonlinear

properties to concrete
Generation of P-M, P-My-Mz, M-M
interaction curves as per Eurocode,
AASHTO LRFD
Calculation of section capacity
(in exure) and safety ratio based
on member forces

Import to GSD
Step 4

Generation of moment-curvature
curve
Plot of stress contour for all the
corss-sections
- Uncracked elastic stress
- Cracked elastic stress

,FOU

1BSL

Import member forces

from midas Civil to GSD
1BSL
4USBJO

Step 5

Section Design in GSD

(Interaction Curve, Moment Curvature,
Stress Contour)
Concrete non-linear
material properties

Rebar non-linear
material properties

3D P-M & M-M curve

Moment curvature curve

Print out of report

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

midas Civil

Bridging Your Innovations to Realities

Module 3. Rail Track Analysis

Rail track analysis wizard

Modal time history analysis for high speed rail

Auto-generation of multi-linear type elastic links

Generation of additional moving load analysis

models with referring to the most critical position
"EEJUJPOBM
NPEFM

"EEJUJPOBM
NPEFM

10m

300m

Model with
Temperature Load

Var.

Model with train load

(gravity direction)

"EEJUJPOBM
NPEFM

10m

Time step deformation of railway bridge

due to dynamic high speed rail loads

.PTU
$SJUJDBM
1PTJUJPO

10m

300m

Model with train

acceleration and
braking force

Construction Stage model with all load cases

-POHJUVEJOBM
%JTQ NN

Longitudinal displacement of deck due to

acceleration and breaking force





Shear vs displacement behaviour of Lead

Rubber Bearing Isolator due to train loads











Acceleration vs time reponse at mid-span

of the bridge under high speed train load



%JTUBODF
GSPN
UIF
MFGU
BCVUNFOU N

Longitudinal displacement due to rotation

-POHJUVEJOBM
%JTQ
%VF
UP
EFDL
SPUBUJPO
NN

Fast modelling of multi span bridges using Wizard supporting

multiple span types for parametric study, tapered bridges,
Rail Expansion joints, etc.
Automatic nonlinear boundary condition for ballast and concrete
bed for loaded and unloaded condition
In complete analysis model, construction stages with different
boundary conditions for each stage are generated
Auto-generation of model les for additional verications whilst
considering proper boundary conditions and load cases
Longitudinal relative displacement of deck and displacement
due to bridge rotational angle
Stress and displacement due to temperature gradient by ZLR
(Zero Lateral Resistance) and REJ (Rail Expansion Joints)














%JTUBODF
GSPN
UIF
MFGU
BCVUNFOU N



Fast dynamic analysis approach for nonlinear boundaries

Easy entry of train loads via Excel sheet input in the dynamic nodal loads table
Wide variety of graphs and tables displayed in the post processor for time history forces,
stresses and displacements under the dynamic effects of high speed rail
Peak acceleration, displacement checks and bearing behaviours can be obtained for
high speed rails

30

31

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

midas Civil

Bridging Your Innovations to Realities

Module 4. AASHTO Composite Girder Design

Steel and PC Composite
Girder Design & Rating
as per AASHTO LRFD & LRFR
Composite girder design module
enables engineers to perform design
check as per latest AASHTO LRFD
code and rating as per latest AASHTO
LRFR code in 3D models. Engineers
will be able to consider erecting
sequence of the girders with different
deck pours and temporary supports.
Girder bridge wizard automatically
generates steel and PC composite
girder bridge model with longitudinal
reinforcements, tendons, bracings,
stiffeners, and loads.

Composite girder design process

Cross Section
Proportion Limits

Constructibility

Service
Limit State

Fatigue
Limit State

Strength
Limit State

Shear
Connector

Transverse
Stiffener

Bridge load rating

Design Load Rating

Performance of existing bridges

Bridge plan data block

Legal Load Rating

Single safe load capacity

Bridge posting determination

Permit Load Rating

Applied to bridges having sufcient capacity

Overweight permit determination

Three modeling methods for composite action

METHOD 1

METHOD 2

METHOD 3

Sequential Analysis +
Accurate Time Dependent Material

Sequential Analysis +
Long-term Modular Ratio of 3n

Composite Action
without Sequential Analysis

Longitudinal
Stiffener

Girder bridge wizard

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

Project Applications
Segmental
Concrete Bridges

US17 Wilmington Bypass (North Carolina, USA)

I-95/I-295 Lee Roy Selmon Flyovers (Florida, USA)

Galena Creek Bridge (Nevada, USA)

Jalan Travers Bansar (Kuala Lumpur, Malaysia)

The bridge over the Adige river (Verona, Italy)

Basarab viaductt (Bucharest, Romania)

La Jabalina Bridge (Durango, Mexico)

Tarango Bridge (Mexico City, Mexico)

Interseccin Elevada Av. Suba x Av. Boyac

(Cali, Colombia)

Bridge Awards of Excellence (American Segmental Bridge Institute)

Bridging Your Innovations to Realities

32

33

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

Project Applications
Cable Stayed
Bridges

Russky Island Bridge (Vladivostok, Russia)

The Worlds Longest

Cable Stayed Bridge

Suspension
Bridges

Stonecutters Bridge (Hong Kong, China)

3rd Longest Cable Stayed Bridge

New Wear Bridge (Sunderland, UK)

An Award
Wining Bridge in UK

Ironton-Russell Bridge (Between Ironton and Russell, USA)

Talavera Bridge (Castile-La Mancha, Spain)

Korabelny Farvater Bridge (Saint-Petersburg, Russia)

Thuan Phuoc Bridge

dge (Da Nang, Vietnam)

Young Jong Bridge (Incheon, South Korea)

Kum Ga Bridge (Chungju, South Korea)

Bridging Your Innovations to Realities

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

About MIDAS IT

MIDAS IT is taking flight with endless passion and devotion to provide technological solutions worldwide
MIDAS Information Technology Co., Ltd. develops and supplies mechanical / civil / structural / geotechnical engineering
software and provides professional engineering consulting and e-Biz total solutions. The company began its operation
since 1989, and currently employs 600 developers and engineers with extensive experience. MIDAS IT also has corporate
offices in US, UK, China, Japan, India and Russia. There are also global network partners in over 35 countries supplying
our engineering technology. MIDAS IT has grown into a world class company.

34

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

Introduction to

MIDAS Family
Programs

MIDAS Family Programs are advanced CAE (Computer Aided Engineering)

solutions that have been and are being developed using the latest technology

MIDAS Program Applications

GTS NX

SoilWorks
Advanced Nonlinear
and Detailed
Analysis System

ch

n ic

Br

e
ic a

MIDAS
Family
Programs
di

il

Integrated System for

building and General
Structures

Bu

midas Gen

al

dg

Beijing Olympic Main Stadium

(China)

Area:78,000 sq. m.
Allowed Seating Capacity:
91,000 people

midas FEA

Geotechnical
Solutions for
practical Design

ng

an

Worlds tallest building to date

Height: 840 m, 168 floors

Integrated Solution
System for Bridge
and Civil Structures

te

Burj
Khalifa (UAE)


midas Civil

GeoTechnical
analysis System

G eo

35

Me

ch

midas NFX
Total Solutions for Mechanical
Engineering in structural
mechanics and CFD

midas DShop
Russky
Island Bridge (Russia)

Worlds longest cable stayed
bridge
Main span: 1,104m

Auto-Drawing Module
to generate Structural
drawings and Bill of
Materials

midas Design+
Structural engineers
tools

midas FX+
General Pre &
Post Processor for
Finite Element
Analysis

INTEGRATED SOLUTION SYSTEM FOR BRIDGE AND CIVIL ENGINEERING

Global Network

a total of over 30,000 licences used worldwide in over 150 countries

Largest CAE Software Developer in Civil Engineering

Headquarters

Branch Offices

Saint Petersburg

UK
(London)

Russia

Poland Lithuania (Moscow)

Czech
Swiss Slovenia
Italy
Spain
Turkey

USA
(New York)

Seattle

Sweden

Algeria
Mexico

Egypt

Puerto Rico

Guatemala

UAE
Oman

Venezuela

Ecuador

Colombia

Ghana

Nigeria

China
(Beijing)
India
(Mumbai)

MIDAS
Shanghai M
(Seoul)
Taiwan

Thailand
Malaysia

Singapore

Tanzania
Bolivia

Indonesia

Brazil

Chile
South Africa

Japan
(Tokyo)

Sales Offices

36

midas Civil
INTEGRATED SOLUTION SYSTEM FOR
BRIDGE AND CIVIL ENGINEERING

www.MidasUser.com