Integrating Computing and Visualization into ...

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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

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Thank you