Interactive Design Systems

Products
	2D Bridge Design & Analysis
	3D Bridge Design and Analysis
		BD3
	Geometry Control MC3D
Services
Training

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BD3 provides a 3-dimensional environment in which it performs a time simulation of construction stages for concrete pre- and post-tensioned structures. The analysis provided by BD3 is appropriate for concrete segmental bridges built in cantilever or span-by-span (or any construction method), concrete cable-stayed bridges as well as composite structures.

BD3 Key Features:

Time-dependent analysis of construction
3D Construction Simulation
No limitations
Number of Elements (Nodes, Segments, Tendons, Material, etc..)
Number of Construction Phases
Flexibility
Model Geometry
Construction Phases
Service Module
Composite Sections
Exact composite solution
Differential Creep and Shrinkage with Self-Equilibrating Stresses
Cable-Stay Construction
Stressing by Force or Elongation
Non-Linear Stays – Catenary Curve for Cable Sag and Stiffness
Temperature change in Stays
Service
Non-Linear Temperature Gradients
Customizable service code – LRFD and BS5400

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Graphical User Interface BD3GUI
BD3 users may display the 3D model and results using BD3GUI in the same fashion as BD2 models may be viewed with BD2GUI. The user interface is very similar with excellent overall compatibility. The features of the current release of BD3GUI include:

Wireframe, surface and solid rendering
User defined transparency level
Zoom in/out and panning
If the transverse geometry of the cross-section is given, BD3UI generates external and internal surfaces.

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Using the various display and viewing capabilities of BD3GUI, users can rapidly evaluate a 3D model for consistency. Specifically, a user may:

Use the standard views – front, back, left, right , top and bottom as well as isometric view
Rotate the model to any angle for evaluation of the geometry
Display top view of post-tensioning tendons to verify horizontal layout and plan-view curvature.