Difficulty lies in: ⢠How to define causes. ⢠How to determine actions. ⢠How to determine effect on structure due to actions. ⢠How to establish acceptability of ...
Integrating Computing and Visualization into Structural Design Process Dr. Naveed Anwar
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Structural Engineering Backbone of physical infrastructure development • • • • • • • • • •
Buildings Bridges Tunnels Dams Transmission Communication towers Power plants Expressways Industrial plants ….
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The Key Questions? • What is it that the Structural Engineers need to learn?
• How they can learn and apply effectively through Visualization?
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• Cause • Natural or man-made hazard • Changes with time
• Action • Force • Displacement
• Effect • Deformation • Stress
Gist of Structural Engineering.. Dr. Naveed Anwar
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Is effect acceptable? • Difficulty lies in: • How to define causes • How to determine actions • How to determine effect on structure due to actions • How to establish acceptability of effects • How to make sure effects are acceptable
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A game played between a few basic quantities Length, Mass, Force
Resources
(Deformation, Velocity, Acceleration)
Time, Displacement
Stiffness, Damping, Energy
(Stress, Strain, Moment, Strength, Ductility, …)
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How can Visualization Help ?
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Levels of Learning The Blooms Pyramid
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Learning Retention
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Significance of Visualization
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Levels of Visualization
Words
Picture
Video
Animation
Simulation
Virtual Reality
Physical Models
Interactive Mixed Reality
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The Key Aspects of Structural Engineering
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Material behaviour
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Section Elastic State: Multi “D” Displays
Shear Force
Shear Stress
Shear Stress Contours
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Section Failure State
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Interpreting The Failure Surface
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Member Level Deformations and Sections
Theory
Demonstration
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Computer Simulation
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Governing Equation for Structural Response Mass-Acceleration
Stiffness-Displacement
External Force
Cu Ku FNL F Mu Damping-Velocity
Nonlinearity
Cu Ku Mu The basic variable is displacement and its derivatives 32
Inherent Natural Response
Free Vibration
Mu Ku 0
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Cumulative Dynamic Response
Cu Ku Mu g Mu
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Dynamic Resonance Effect Cu Ku Mu g Mu Time History Analysis
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Nonlinear Dynamic Response - Damage Cu Ku FNL F Mu
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Wind Pressure Simulation Drag Force Side Force
Wind Pressure on Buildings
Torsion
Front Right
Back
Fy
Mz Wind direction
Fx Left
Pressure and Deformation Simulation
Wind
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Combining Reality with Simulation
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Augmented and Mixed Reality
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Some Initiatives at AIT
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AIT Solutions established in AIT
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Use of Drone Imaging With Structural Analysis
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Drones to Analysis
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Sample: Drone Based Construction Monitoring
Drone Images from site
Image cleanup and composites
Drone and Revit Model comparison
Progress Reports
Other Images
3D Model from Images
Progress monitoring
Analysis for verification and learning
Learning from Instrumented Structures
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Integrated Knowledge Development at AIT
Wind Tunnel Lab
Structural Lab
Teaching, Research
Practical Experience
Shake table, Cyclic Actuator, strong floor
Tall Buildings, Wind and Earthquake Engineering
of over 100 PBD Projects
Development and application of Integrated PBD for Wind and Earthquake
CSi
Partners
Software Developer
Structural Engineers
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CSi Mobile Apps
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An Example: Professional Masters Structural Engineering Dr. Naveed Anwar 50
Final thoughts! Integrating computer based simulations, physical models and visualization techniques can increase our understanding of the built environment to make it safer and more resilient for various hazards
