Eurocodes and Innovation. Developments in Finite Element Analysis for Bridges

Transcription

1 Eurocodes and Innovation Developments in Finite Element Analysis for Bridges

2 Developments in Finite Element Analysis for Bridges Ease of Use Vehicle Loading - Autocombinations Cable Tuning Construction Stage Analysis Code checking - Eurocodes 2

3 Ease of Use / User Interface [ Steel Plate Girder Bridge ] [ Cable-stayed Bridge ] [ Arch Bridge ] [ Post-tensioned Tendon Bridge ] [ Suspension Bridge ] 3

4 Bridge Modeling Composite PC Girder Bridge 4

5 Bridge Modeling Composite Steel Girder Bridge 5

6 Bridge Modeling Composite Steel Girder Bridge 6

7 Bridge Modeling PSC Box Bridge (4 Cells) 7

8 Bridge Modeling Segmental Bridge and Tendons 8

9 Bridge Structure Wizards Suspension Bridge Wizard 9

10 Bridge Structure Wizards FCM Bridge Wizard 10

11 Bridge Structure Wizards RC Slab Bridge Wizard 11

12 Bridge Structure Wizards RC Frame/Box Culvert Wizard 12

13 Grillage Model Wizard (customization for Caltrans) [Span Tab] [Load Tab] [Section Tab] [Transverse Tab] [Layout Tab] [Tendon Tab] 13

14 Grillage Model Wizard (customization for Caltrans) [ Grillage Model BMD ] 14

15 Integral Bridge Wizard (Lehane) 15

16 Vehicle Loading Defining Moving Load in 3 steps Moving Load Code Traffic Line Lane or Traffic Surface Lane Standard Vehicular Load or User-defined Vehicular Load 16

17 Moving Load Analysis Defining Moving Load in 3 steps Moving Load Code Traffic Line Lane or Traffic Surface Lane Standard Vehicular Load or User-defined Vehicular Load 17

18 Moving Load Analysis Defining Moving Load in 3 steps Moving Load Code Traffic Line Lane or Traffic Surface Lane Standard Vehicular Load or User-defined Vehicular Load 18

19 Moving Load Tracer 19

20 Staged Construction [ Construction Stage Analysis Bending Moment ] 20

21 Time Dependent Materials Time Dependent Material (Creep/Shrinkage, Compressive Strength and Tendon Loss) as per Eurocode2:04 Time Dependent Material (Creep/Shrinkage, Compressive Strength and Tendon Loss) as per Eurocode2:04 Model > Properties > Time Dependent Material(Creep/Shrinkage) Model > Properties > Time Dependent Material(Comp. Strength) Load > Prestress loads > Tendon Property Creep/Shrinkage Compressive Strength Tendon Losses 21

22 Code Checking - Eurocodes Gen (V741) Civil (V740) Concrete Material DB EC2:2004 EC2:2004 Steel Material DB EC3:2005 EC3:2005 Steel Section DB UNI, BS, DIN UNI, BS, DIN Time dependent materials (Creep, Shrinkage and Modulus of Elasticity) EC2:2004 (new for V760) EC2:2004 (new for V760) Prestress losses EC2:2004 (new for V760) EC2:2004 (new for V760) Static Wind load EC1:2005 N/A Static Seismic Load EC8:2004 N/A Response Spectrum Function EC8:2004 EC8:2004 Vehicle Load N/A EC1:2003 Masonry Pushover UNI N/A RC Pushover EC8:2004 N/A Steel Pushover EC8:2004 N/A Load Combination EC0:2002 EC0:2002 Concrete Frame Design (ULS & SLS) EC2:2004 N/A Steel Frame Design (ULS & SLS) EC3:2005 N/A Concrete Slab & Wall Design EC2:2004 (new for V760) N/A Capacity Design EC8:2004 (new for V760) N/A Composite Plate Girder Design N/A EC4:2005 EC2:2004 EC3:

23 Code Checking - Eurocodes Beam Design/Code Checking 23

24 Code Checking - Eurocodes Concrete Wall Design/Code Checking 5. Click [Graphic ] button. 24

25 PSC Design 25

26 PSC Design [ Result Tables ] [ Design Report (EXCEL compatible) ] 26

27 Automatic Frame to Solid/Shell Model Generation Civil, Gen FEA Frame Model (General Section) MCS Format Generated Solid Geometry Analysis Model (3D Prism Mesh) Frame Solid Wizard automatically generates Solid Geometry & Mesh by importing Frame Model (*.MCS) from Civil and Gen. 27

28 Including Tendons if Required Export frame model to solid/plate model Tendon Profiles as well as concrete girder can be exported to midas FEA for detail analysis. Exporting frame model to plate model in midas FEA is newly implemented. The user can easily generate the solid/plate model with tendons, which will be analyzed in midas FEA. File > Export > Frame Section for Solid, Frame Section for Plate [: line beam model] [midas FEA: Imported tendons] [midas FEA: Solid model] 28

29 Introduction of midas FEA [ Geometry Modeling ] [ Map-mesh Generation ] [ Interface Analysis ] [ Reinforcement Analysis ] [ Various Contour Plot ] 29 / 99

30 Data Exchange Import (Geometry) STEP, IGES ACIS*, Parasolid* SolidWorks*, Inventor*, etc. AutoCAD DWG / DXF MIDAS MxT files * marked CAD interfaces are options. Export (Geometry) STEP, IGES, BRep MSC/NASTRAN* Import (Analysis Data) DIANA MSC/NASTRAN Neutral (Text) Export (Analysis Data) MIDAS/Civil, MIDAS/Gen Neutral (Text) Standards for CAD Data Exchange STEP (STandard for the Exchange of Product Model Data) IGES (Initial Graphics Exchange Specification) Imported CAD Geometry Generated Mesh 30 / 99

31 Virtual Mesh Transformation Transformation Control Box Virtual Transformation (Translation, Rotation, Scaling) by Mouse Dragging 31 / 99

32 Reinforcement Elements Modeling Method Embedded Bar (Incompatible Mesh) Truss (Compatible Mesh) + Interface (Slip, Friction) Prism Map-Mesh Embedded Bar (Incompatible) Truss + Interface (Compatible) Analysis Result 32 / 99

33 midas FEA project applications PSC Box Load Step 1 Disc Normal: Opening Direction Disc Color : Magnitude Line : Shearing Direction PSC Box Cracking Models Load Step 5 Total Strain Crack Fixed Crack Mode & Rotating Crack Model Discrete Crack Mode Interface Nonlinearity Results Crack Pattern (Crack Stress/Strain) Element Status Cracking: Partially/Fully Open, Closed, Not Yet Plasticity: Previously Plastic, Elastic, Plastic, Critical Contact: No Contact, Slip, Stick fct σn cr Gf Discrete Crack w Concrete Crack Models fct σn cr GfG /h Smeared Crack cr ε nn 33 / 99

34 midas FEA project applications Guss Asphalt Pavement Fire in a Subway Structure Temperature at the Top Plate Temperature of Fire Thermal Stress Heat Transfer Steady-State & Transient Conduction, Convection, Radiation Heat Flux Heat Flow Temperature Gradient Display Temperature Distribution 34 / 99

35 Introduction of midas GTS [ TGM (Terrain Geometry Maker) ] [ Automesh Generation ] [ Virtual Transformation ] [ Probe Result ] [ Partitioned Plot ] 35 / 99

36 Midas GTS project applications 36 / 99

37 midas GTS project applications 37 / 99