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CIVIL ENGINEERING - ساختار و شکل پل

CIVIL ENGINEERING

وبلاگ تخصصی مهندسی عمران و کامپیوتر

ساختار و شکل پل





  Static Analysis, Free Vibration Analysis, Response Spectrum Analysis
Time History Analysis (Transient Dynamic, Periodic Dynamic)
Buckling Analysis (Critical buckling load factors, Buckling modes), P-Delta Analysis



 
  BANGHWA GRAND Br. (Steel Arch Br.)


 
 

Design scope

3D Model of Banghwa Grand Bridge spanning over Han river created using the modeling functions such as Create Node, Mirror, Intersect Node, Parabolic Curve, etc.

Dynamic Analysis
Construction Stage Analysis
Moving Load Analysis

Profile of Model

Node: 713
Element: 2076
Element Type: Beam


 
 
Construction stage of Banghwa Grand Br. Contour of combined stresses of beam elements
Construction stage Analysis model of Banghwa Grand Br.

 

Overview of erection sequence

Display of Combined Beam Stresses of Banghwa Br. subject to Live and Earthquake Loads


 
  CHUNGDAM GRAND Br. (Type Steel Frame Br.)


 
 
Design scope

Natural Periods of Vibration (Modal) Analysis for Seismic Design, 1st & 2nd Modes in Vertical Direction
(2nd Mode: T2=0.7459 sec,
4th Mode: T4=0.2346 sec)

Moving Load Analysis

Profile of Model

Node: 850
Element: 1197
Element Type: Beam


 
 

Eigenvalue Analysis of Chungdam Grand Bridge
Aerial view of north ramps of Chungdam Grand Bridge


 
  ORTHOTROPIC STEEL DECK Br. (Steel Bridge)


 
 



Design scope

An open shape, 190m long structural steel composite bridge consisted of 60, 70 & 60m long segments. A full model was created for the entire structure using plate elements. Detail Analysis was carried out to evaluate the effects of concentrated reaction forces on the diaphragm, which was open at the top. Pipe shaped bracing, U-shaped ribs and reinforcements at the support points were fully reflected in the model.
  Profile of Model

Node: 34269
Element: 33732
Element Type: Plate

 
 
190m long structural steel composite bridge consisted of
60, 70 & 60m long segments modeled with plate elements

Pipe shaped bracing, U-shaped ribs and reinforcement at the support points were fully reflected in the model. Detail Analysis model for evaluating the effects of concentrated reaction forces on the open diaphragm


 
  GULPO Br. (Steel Arch Br.)


 
 



Design scope

3D Solid Elements were implemented to represent a Lug-Pin connection part of a Cable Hanger of the Arch Bridge. Compression-Only Members and Gap Elements were used to resolve the contact Problem at Pin and Lug.
  Profile of Model

Node: 5814
Element: 5912
Element Type: Plate, Solid

 
 
Detail Analysis Model of Transverse Tube connection to an Arch Rib. Beam
elements were used at the boundaries of the detail model. Relevant displacements
at the boundaries were obtained from the analysis of the entire model, which
were then applied to the detail model as specified (forced) displacements.

Results of a detail analysis at a Lug/Pin part 3D Solid Elements implemented to represent a Lug-Pin connection part of a Cable Hanger


 
  UCHON 1st Br. (Steel Arch Br.)


 
 



Design scope

Detail analysis of a connection in
an arch rib
Detail Analysis of all main
connections
  Profile of Model

Node: 45654
Element: 46098
Element Type: Beam, Plate

 
 
Detail analysis of arch rib connection

Detail analysis of arch rib connection Detail analysis for opening reinforcement


 
  JECHON-DODAM RAILWAY Br. (Steel Plate Girder Br.)


 
 



Design scope

Local Buckling Analysis of
a plate girder bridge
  Profile of Model

Node: 1645
Element: 1584
Element Type: Beam, Plate

 
 
Local Buckling Analysis model of plate girder bridge

Local Buckling Analysis before reinforcement
Local Buckling Analysis after reinforcement


 
  JECHON-DODAM RAILWAY Br. (Steel Truss Br.)


 
 



Design scope

Detail analysis of connection of
a pony truss bridge
Detail Connection Analysis

  Profile of Model

Node: 20384
Element: 20416
Element Type: Beam, Plate

 
 
Detail Analysis of a connection

Detail Analysis of a connection
Detail Analysis of a connection


 
  JECHON-DODAM RAILWAY Br. (Steel Arch Br.)


 
 



Design scope

Detail analysis of a connection of
an arch rib
Detail Connection Analysis

  Profile of Model

Node: 24268
Element: 24520
Element Type: Beam, Plate

 
 
Analysis model of Arch Bridge

Detail analysis of connection of arch ribs
Detail analysis of connection of an arch rib



 





  MIDAS/Civil provides the Wizard to create a completed model of a Cable Stayed Bridge extremely fast. Initial prestressing forces are calculated through Optimization for initial equilibrium state analysis. It also provides the Construction stage function, which enables us to reflect Creation/Deletion of elements, change in boundary conditions and loading changes that may occur in various stages of construction.



 
  SEOHAE GRAND Br. (Cable Stayed Br.)


 
 



Design scope

Static Analysis
Construction Stage Analysis
Moving Load Analysis
Unknown Load Factors
Eigenvalue Analysis

  Profile of Model

Node: 850
Element: 1421
Element Type: Beam, Cable

 
 
Nonlinear analysis results of completed Seohae Grand Br. using cable elements


Construction view of Seohae Grand Br.
Eigenvalue analysis


Analysis model for construction stages
Eigenvalue analysis reflecting Initial Force for Geometric Stiffness

Rendering view of analysis model for construction stages



 
  SAMCHEONPO GRAND Br. (Cable Stayed Br.)


 
 



Design scope

Static Analysis
Construction Stage Analysis
Moving Load Analysis
Unknown Load Factors
Eigenvalue Analysis
  Profile of Model

Node: 759
Element: 1086
Element Type: Beam, Cable


Samcheonpo Grand Br. crossing layout


Construction stage analysis model

Construction view of
Samcheonpo Grand Br.
Time history analysis reflecting Initial
Force for Geometric Stiffness


Construction stage analysis model



 

  KUMDANG Br. (Cable Stayed Br.)

 
 
Results of initial cable prestressing forces obtained by the Unknown Load Factor function


Kumdang Bridge, Kwangyang, Korea (160m)

Design scope

Static Analysis
Construction Stage Analysis
Moving Load Analysis
Unknown Load Factors

Project profile

Node: 51
Element: 62
Element Type: Beam, Cable



 

  2nd SUNGSAN GRAND Br. (Cable Stayed Br.)

 
 
Linear & Nonlinear analyses using
Truss & Cable elements

2nd Sungsan Grand Bridge,
Seoul, korea (225m)

Design scope

Static Analysis
Construction Stage Analysis
Moving Load Analysis
Unknown Load Factors

Project profile

Node: 107
Element: 123
Element Type: Beam, Cable



 

  DOLSAN GRAND Br. (Cable Stayed Br.)

 
 
Dolsan Grand Bridge, Yeosu,
Korea,1984 (280m)


Eigenvalue analysis of Dolsan Br. reflecting Initial Force for Geometric Stiffness

Design scope

Static Analysis
Moving Load Analysis
Unknown Load Factors

Project profile

Node: 141
Element: 116
Element Type: Beam, Cable


 

  JINDO GRAND Br. (Cable Stayed Br.)

 
 
Jindo Grand Bridge, Jindo,
Korea, 1984 (344m)


Nonlinear analysis results of completed Jindo Grand Br. using cable elements


Design scope

Static Analysis
Moving Load Analysis
Unknown Load Factors

Project profile

Node: 237
Element: 304
Element Type: Beam, Cable




 





  Unlike conventional structures, a special analysis approach is required for Suspension Bridges, which are composed of flexible cables. Suspension Bridge Wizard in MIDAS/Civil automatically calculates the cable coordinates and tensions of the completed structure. Also, using 3D Elastic suspension line element and Equivalent truss element can consider nonlinear characteristics of the cables. It supports Geometric nonlinear analysis as well as Construction stage analysis.



 
  KWANGAN GRAND Br. (Suspension Br.)


 
 

Analysis model of completed Kwangan Grand Br. using Suspension Bridge Wizard



Design scope

3D full model created using cable and beam elements for Kwangan Grand Br.

  Profile of Model

Node: 2018
Element: 3176
Element Type: Beam, Cable


 


Perspective model view of Kwangan Grand Br.



Display of a deflected shape and tension forces, which are also tabulated, subsequent to carrying out inverse construction stage analysis

Mode Shapes resulting from
eigenvalue analysis



Pylon & catwalk of Kwangan Grand Br.


 

Construction view of Kwangan Grand Br.



Display of Inverse Construction Stage Analysis models reflecting members, boundary conditions and loadings pertaining to each stage


  YOUNGJONG GRAND Br. (Suspension Br.)


 
 




Design scope

A structural analysis model of existing Youngjong Bridge was created for the purpose of maintenance management during its life cycle. Cable and Beam elements were used for the superstructure.

Elastic Links and Rigid Links were used to represent the boundary conditions. The entire structural model was tuned to represent the true behavior of the bridge, reflecting the displacements and natural frequencies measured from a series of load tests.
  Profile of Model

Node: 1362
Element: 2092
Element Type: Beam, Cable


 
 
Perspective model view of
Youngjong Grand Br.


Construction view of Youngjong Grand Br.
Time History Analysis model



Eigenvalue analysis result showing
the 1st vertical mode
Youngjong Grand Br.

Mode Shapes resulting from
eigenvalue analysis




 



  Time dependent material properties are defined to reflect the variation of modulus of elasticity relative to concrete maturity and the long-term deflection effects due to creep and shrinkage. MIDAS/Civil provides Standardized PSC Box Sections for Post-tensioned Box Girder Bridges for easy application in practical modeling.

Analysis accounts for prestressing effects considering Pre-/Post-tension and Internal/External placing methods. FCM, ILM and MSS Bridge models and construction stages are generated after having entered only cross sections, tendon placement and bridge information.




 
  FCM (Free Cantilever Method)


 
 




Design scope

FCM Wizard
Static Analysis
Construction Stage Analysis
Moving Load Analysis
  Profile of Model

Node: 80
Element: 75
Element Type: Beam


 
 
Naro Island - Lyunlyook Br.


Real Time Display of element generation and loading process in an FCM Bridge in Render View
Graphs showing Bridge
Girder Stress & Camber Control


FCM Bridge Tendon Profile
Elevated overpass, Busan

A complete FCM bridge model and
tendon profile simply created by
FCM Bridge Wizard.



 
  ILM (Incremental Launching Method)


 
 




Design scope

ILM Wizard
Static Analysis
Construction Stage Analysis
Moving Load Analysis
  Profile of Model

Node: 322
Element: 154
Element Type: Beam


 
 
Results of construction stage
analysis of an ILM Bridge


Construction view of Jangpyung Br.

Launching schematic of an ILM Bridge

ILM Bridge Girder Stress Diagram



Tendon placement wizard for ILM Bridge



 
  MSS (Movable Scaffolding System)


 
 




Design scope

MSS Wizard
Static Analysis
Construction Stage Analysis
Moving Load Analysis
  Profile of Model

Node: 119
Element: 118
Element Type: Beam


 
 
Results of construction stage analysis
of an MSS Bridge


MSS Staging view of Jeokmoon Br.
Formwork - saffolding of MSS
Construction view of Sangchon
Br. using MSS

Results of construction stage
analysis of Sangchon Br.

A construction stage view of MSS



 
EXTRADOSED (Extradosed PSC Bridge)


 
 




Design scope

Static Analysis
Construction Stage Analysis
Moving Load Analysis
Unknown Load Factors
  Profile of Model

Node: 80
Element: 75
Element Type: Beam


 
 
Results of construction stage analysis of
an Extradosed PSC Bridge

Analysis results of a completed
Extradosed PSC Bridge
Ganter Bridge, Swiss, 1980 (174m)
Sunniberg Bridge, Swiss, 1998 (140m)

Overview of Extradosed PSC Bridge structure



 



  RC Slab Bridge, RC Frame & Box Culvert Wizards
Static Analysis, Moving Load Analysis, Influence Line/Suface Analysis, etc.
2D - Beam & Column Design/Checking



 
  RC FRAME WIZARD


 
 




Design scope

RC Frame Wizard
Static Analysis
Influence Surface Analysis
Moving Load Analysis
Beam & column Design
  Profile of Model

Node: 884
Element: 832
Element Type: Beam, Plate


 
 
Results of static analysis of a skewed Frame Bridge


Verification of inputting load in a skewed Frame Bridge
Results of a moving load analysis
and settlement analysis of a
skewed Frame bridge

Beam & Column Design of
a RC Frame Bridge


A cutting plane of PI type Frame Bridge
Results of static analysis of a
2 span Frame Bridge




 
  RC SLAB WIZARD


 
 




Design scope

RC Slab Wizard
Static Analysis
Influence Surface Analysis
Moving Load Analysis
  Profile of Model

Node: 657
Element: 576
Element Type: Plate


 
 
A complete RC slab Bridge model by
RC Slab Bridge Wizard.


Verification of Inputting static load in a skewed slab Bridge
Verification of moments due to a moving load along a Cutting Line of the slab bridge
Verification of Inputting moving Load in a skewed slab Bridge


Moving load tracer of a skewed, continuous 3-Span Slab Bridge due to a moving load
Moving load tracer & converting moving load of a skewed, continuous 3-Span Slab Bridge due to a moving load


 
  RC CULVERT WIZARD


 
 




Design scope

RC Culvert Wizard
Static Analysis
Beam & column Design
  Profile of Model

Node: 1926
Element: 1482
Element Type: Beam, Plate


 
 
A complete Box culvert model by RC Box culvert Bridge Wizard

Verification of Inputting static load for
a 3-D culvert Bridge

Verification of moments due to a Static load along
Cutting Lines of the culvert bridge


Verification of Inputting static load of
a 2D culvert Bridge
Results of static analysis of
a 2 cell box culvert
Beam & Column Design of
a 2 cell box culvert






 


  STEEL BOX BRIDGE


 
 




Design scope

Static Analysis
Moving Load Analysis
Response Spectrum Analysis
  Profile of Model

Node: 101
Element: 144
Element Type: Beam, Plate, Solid


 
 
Screen showing the displacement contour and Tool tip, which provides detail analysis results of a steel box girder bridge


Rigid Link representing a separation between the bridge box
girder and support pier


Skewed boundary conditions on a curved bridge with a lane expansion


Location of a moving load that produces
the maximum member forces in
a composite structural steel bridge

Von Mises stress Contour of a diaphragm
at a steel box girder bridge support

Principal stress Contour of a pier
at a steel box girder bridge




 
  PC BEAM BRIDGE

 
 




Design scope

Static Analysis
Moving Load Analysis
Response Spectrum Analysis
  Profile of Model

Node: 373
Element: 294
Element Type: Beam, Plate


 
 
Results of a displacement analysis of a 3-span PC beam bridge before composite
Change of precast sectional properties of selected members by Drag & Drop in Works Tree


Results of a displacement analysis of a 3-span PC beam bridge after composite


Location of a moving load that produces
the maximum member forces
in a slab Bridge


Response spectrum analysis of a
3-span PC beam bridge

Converting loads to masses for Dynamic analysis of a PC beam Bridge





 



 
 

Deformation and principal stress contours from
a response spectrum analysis of a highway bridge pier




Design scope

Detail analysis of pier,
cross bracing
diaphragm, tunnel, cable
anchorage. etc.

Static Analysis
Moving Load Analysis
Response Spectrum Analysis
Buckling Analysis
  Profile of Model

Node: 1362
Element: 2092
Element Type: Plate, Solid


 
 
Automatic mesh generation of elements by assembling basic features followed by intersection calculations
Von Mises stress Contour of a pier
steel form using automatic mesh
generation of elements
Detail analysis of a cable anchor modeled with plate elements. The stress contour shows the stresses at the top and bottom of the plate elements simultaneously.



Analysis results of a main/access tunnel joint model, created by the mesh generator using selective base features



Von Mises stress Contour of a cross
bracing at a structural steel box
girder bridge support

Connection of branch and main pipes in cable anchorage



 




 

Heat of Hydration for Mass Conc.: PSC Box Br., Abutment, Pier, Breakwater, etc.
Underground Structures: Tunnel, Subway, Municipal service facilities, etc.
Plant Structures: Tanks, Pressure vessels, Transmission towers, Power plants, etc.
Public facilities: Airports, Dams, Harbors, etc.



 
  HEAT OF HYDRATION (Pier     Abutment     Breakwater      Pylon)

 
 

Structural model of Extradosed PSC Box at a pier
cap for Heat of Hydration analysis, divided by a concrete pour sequence




Design scope

Heat of Hydration Analysis by construction stages reflects the changes of Modulus of Elasticity due to maturity, effects of Creep, Shrinkage and Pipe Cooling and Concrete pour sequence.
  Profile of Model

Node: 4495
Element: 3141
Element Type: Solid


 
 
Results of Heat of Hydration analysis for PSC Box at a pier cap reflecting construction stages (Stress distribution)

Results of Heat of Hydration analysis for Mat Foundation reflecting construction stages
(Stress distribution)
Results of Heat of Hydration analysis for Abutment reflecting construction stages
(Stress distribution)

Results of Heat of Hydration analysis for Breakwater in Cheju Harbor reflecting construction stages (Stress distribution)





 



TUNNEL (Tunnel lining)

 
 




Design scope

Detail Analysis of a Tunnel Exit modeled with plate elements.
Main tunnel lining attached to an emergency access.
  Profile of Model

Node: 4092
Element: 1274
Element Type: Plate,
  Compression-only


 
 
Detail Analysis of a Tunnel Exit modeled
with plate elements presenting
a Stress Distribution Diagram through
a Cutting Plan


Result of a time history analysis
of a tunnel lining
subject to Jet Fan vibrations
Main tunnel lining attached to an
emergency access, modeled by auto-generation showing equivalent soil springs

Analysis results of a main/access tunnel
joint model, created by the mesh generator using selective base features



 
SUBWAY 1 (Subway Station)

 
 




Design scope

Complete analysis model of a subway station structure using beam and plate elements.
  Profile of Model

Node: 12597
Element: 12978
Element Type: Beam, Plate


 
 
Complete analysis model of a subway station structure
using beam and plate elements

Structural Analysis Result of a Subway ventilation opening structure fully modeled
with plate elements


Structural Analysis Result of a Subway station fully modeled with plate elements


 
  SUBWAY 2 (Subway Station)

 
 




Design scope

Complete analysis model of a subway station structure using beam and solid elements.

  Profile of Model

Node: 12597
Element: 12978
Element Type: Beam, Soiid


 
 
Maximum Principal Stress distribution of a main section

Subway tunnel - ventilation junction
Half model of Dokbawee Stn.


Subway Stn. at open area

Analysis model of subway entrance

Stress distribution of subway entrance


 
  SEWAGE TREATMENT CONTAINMENT (Plant Structure)

 
 




Design scope

Structural Analysis Result of a Sewage Treatment Containment structure fully modeled with plate elements.
Compression-only Members were used to reflect the foundation boundary conditions. Lateral soil and water pressures were applied to the structure.

  Profile of Model

Node: 3080
Element: 3176
Element Type: Plate,
  Compression-only


 
 

Structural Analysis Result of a Sewage Treatment
Containment structure, fully modeled with plate elements.




A see-through effect of a sewage treatment
structure wall by blending effect



 



Perspective model view of yosu-goheung bridge








  Static Analysis, Dynamic Analysis, Geometric Nonlinear Analysis, Eigenvalue Analysis, Response Spectrum Analysis, Time History Analysis (Transient Dynamic, Periodic Dynamic), Moving Load Analysis, Construction Sequence Analysis & Suspension/Cable-Stayed Bridge Analysis




 




  Static Analysis, Dynamic Analysis, Eigenvalue Analysis, Heat of Hydration Analysis, Response Spectrum Analysis, Time History Analysis (Transient Dynamic, Periodic Dynamic), Moving Load Analysis, Construction Sequence Analysis & PSC Box Girder Bridge Analysis



 




  Static Analysis, Dynamic Analysis, Geometric Nonlinear Analysis, Buckling Analysis, Moving Load Analysis, Heat of Hydration Analysis, Response Spectrum Analysis, Time History Analysis, Construction Sequence Analysis, PSC Box Girder Bridge Analysis & Suspension/Cable-Stayed Bridge Analysis
 

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