• Creating Augmented Reality Experience to Assess & Simulate Earthquake Damage

What it does

  • Distinguishing Earthquake Damage and Structural Integrity through Visual Inspection

How we built it

  • MagicLEAP Augmented Reality Technology
  • Unity3D
  • 3D Map Generator - Adobe Plugin
  • Google Maps Satellite Images
  • 8th Wall
  • Adobe Photoshop
  • Adobe XD

Challenges we ran into

  • 3D Map Generation Cannot Render in Real-Time, Hardware Issues with SDK & Building application, Operating System Drivers Incompatibility, Importing 3D Models, Scaling Environmental Variables, Integrating Audio Cues, Time Crunch utilizing Hardware

Accomplishments that we are proud of!

  • Scaling 3D Models in MagicLeap Augmented Reality, Linking Structural Audio Cues, Creating Interactive Spacial Experiences for Earthquake Simulation, CoreML, Cross Platform AR & Mobile Integration

What we have learned

  • MagicLeap AR Development, 3D Map Generation, Stereo to Mono Audio Conversions, Domain Knowledge / Types of Structural Damage to Walls, Columns & Foundations, Earthquake Simulation

What's next for DamageCheckAR

  • iOS Mobile Application for Visual Inspection with Artificial Intelligence & Machine Learning
  • NormCore - Multi-User Collaboration through Spacial Anchors

Tools we utilized

Resources / Research

Audio Effects - For AR Simulation


2020 Puerto Rico Earthquake Sequence

Earthquakes detected between December 28, 2019 as of January 16, 2020

  • >300 M3+ earthquakes recorded* since December 28th 2019
  • Strong enough to be felt (within 40km)
  • 10 M5+ earthquakes recorded* since December 28th 2019
  • Including M6.4 - large enough to do significant structural damage
  • M5.0 - 10km S of Indios, Puerto Rico 2019-12-29 01:06:00 (UTC)
  • M5.8 - 13km SSE of Indios, Puerto Rico 2020-01-06 10:32:18 (UTC)
  • M6.4 - 8km S of Indios, Puerto Rico 2020-01-07 08:24:26 (UTC)
  • M5.9 - 13km SE of Guanica, Puerto Rico 2020-01-11 12:54:45 (UTC)
  • M6.4 Earthquake Forecast -

4 Types of Cracks in Concrete Columns and their Causes

Four types of cracks developed in reinforced concrete column are diagonal cracks, horizontal cracks, splitting cracks, corrosion cracks. The causes of cracks in columns can be incorrect design, faulty construction or overloading, corrosion of reinforcement, isolated settlement of foundations, creep and shrinkage.

Cracking in reinforced concrete column is a serious problem and it may lead to the loss of strength, stability, durability, and detrimentally influence aesthetics. Therefore, it is required to investigate different types of cracks that may initiate in columns in order to consider suitable means to restrict them.

Types of Cracks in Concrete Columns

  1. Diagonal Cracks in reinforced concrete columns develops and encompass the entire face of column anywhere along its height. The main cause of diagonal cracks in concrete columns is inadequate load carrying capacity of the columns; insufficient cross-section and inadequate reinforcement steel. Diagonal Cracks would influence structural soundness and hence it needs to be dealt with properly.

  2. Horizontal Cracks in reinforced concrete column is observed to initiate mostly at the beam-column junction, and on column face where tensile stress is large. Columns with inadequate moment resistance capacity, insufficient reinforcements, or disposition of installed reinforcement are prone to horizontal cracking; due the effect of shear force and direct load and uniaxial bending. Finally, horizontal cracks substantially reduce the shear strength of the column leading to a greatly increased risk of failure. So, it is required to be tackled as soon as possible.

  3. Splitting Cracks in reinforced concrete column are short parallel vertical cracks with non-uniform width. Columns with Insufficient steel reinforcement, and low concrete quality are susceptible to experience such types of cracks. Splitting cracks in concrete columns initiated as a result of reaching its maximum load carrying capacity. The ultimate Load carrying capacity of the column surpassed when concrete cross section is inadequate or reinforcement ratio is insufficient or combination thereof.

  4. Corrosion Cracks in concrete columns are developed along the line of reinforcements. This type of cracks is commonly uniform in width and widen as the column is ageing. Possible reinforcement corrosion and inadequate bond between concrete and steel bars are the cause of corrosion reinforcement in concrete columns. If such type of cracks is not tackled the corrosion of reinforcement would accelerate considerably.

Types of Cracks in Walls:

  • Horizontal Crack at the Junction of Roof Slab and Masonry Wall Support
  • Vertical Cracks at Junction of R.C.C. Column and Wall Masonry
  • Cracks Due To Chemical Reactions and Preventive Measures
  • Cracks in Foundation
  • Extension of Existing Building
  • Cracking of Compound Wall
  • Horizontal Cracks in the Topmost Storey
  • Cracks in External and Internal Walls of Load-Bearing Structures
  • Random Cracks in All Directions Involving both External and Internal Walls
  • Partition Walls in Load-Bearing Structures
  • Vertical Cracks in Buildings
  • Reinforced Concrete Roofs at Different Levels
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