Transcript Folie 1

a must have program for bridge design professional
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Challenges regarding the Finite Element Method in
Bridge Analysis and Design
Strategy to manage changes in the model during
the design process
Selection of the appropriate numerical model (i.e.
beam, shell or volume-elements?)
Fast traffic load analysis (…time is money)
Reliable design according to various codes and
simulation of time-dependent effects
Powerful graphical result presentation
Special investigations in the same environment if
necessary (e.g. dynamic wind, nonlinear, seismic…)
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SOFiSTiK is complete solution for all your bridge
design challenges.
Strategy to manage changes in the model during the design process
CABD: Parametric Modeling
Selection of the appropriate numerical model (i.e. beam, shell or volume-elements?)
Hybrid Systems and combination of all kinds of elements
Fast traffic load analysis (…time is money)
Inbuilt vehicle loads & Influence line evaluation
Reliable design acc. to various codes and simulation of time-dependent effects
Design and Construction Stage Manager Modules
Powerful graphical result presentation
3D Interactive post-processing
Special investigations in the same environment if necessary (e.g. dynamic wind,
nonlinear, seismic…
Full modular concept with high-end features and programming interfaces
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CABD: Computer Aided Bridge Design
 Graphical Tasks support the Bridge Engineer:
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Interactive working area
Task area
Tabular output
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Model creation with SOFiPLUS
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Reports with URSULA
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Visualisations with ANIMATOR
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Graphical output with WINGRAF
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ASCII-Input with TEDDY
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CABD – Computer Aided Bridge Design
 Reference axis as basis
Primary axes, secondary axes, variables, placements
 Graphical cross‐section input (cross-section editor in SOFiPLUS
i.e. based on AutoCAD)
 Tendon layout
 Traffic loading (Influence line evaluation)
 Construction stage simulation (CSR)
 Enveloping and Design
 Postprocessing
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CABD - Geometry
 Traffic route axes, bridge axes, secondary axes, ...
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CABD- Variables
 Cross section geometry, secondary axes,...
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CABD- Placements
 Important points and sections along an axis
Start- and Endfaces, Supports, Construction Joints, Transversal beams, CS jumps
 Alignment on primary axis
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CABD- Structure
 Meshing
Meshing - Parameters: ctrl MESH, ctrl HMIN, ...
 Substructures with reference to an axis respectively placements
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CABD- Tendon layout
 With reference to an axis
Prestressing effects for pre‐/post‐tensioning and internal or external
tendons
Cubic 3D spline tendon geometry
Calculation of losses for tendons with 3D profile and curvature
Jacking and construction sequences
Prestress for beam and shell structures
Immediate bond with additional strain in ULS
Unbonded tendons
Library of prestressing systems
Tendon stress diagram
Jacking protocol (numerical and graphical)
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CABD- Moving Loads
 With reference to an axis
Load stepping method / Influence line method
 Load models and groups of loads acc. various codes
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CABD- Construction methods, enveloping and design
 Construction Methods: ILM (‘moving springs’), BCM, Span-bySpan, CM with large displacements, Precamber, Optimization,
Shop-Forms
 Time dependent effects of creep, shrinkage and relaxation
within the ‘Construction Stage Manager’ (CSM)
 ULS design for beam‐ and shell‐elements and various SLS
stress checks of all materials in different stages.
 A broad range of international design codes (e.g. EC, BS, AS,
AASHTO, NTC 2008, IRC)
 Interactive graphical and numerical post‐processing
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Example: Balanced Cantilever…
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Key-Issue: Sensible group assignments
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Optional: Young's Modulus modification for young concrete in CSM etc.
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