Project Log

10/27/2011

posted Oct 28, 2011, 6:52 AM by Jacob David

Rubble removed from premises (courtesy ATS)

   

10/7/2011 (w/Video)

posted Oct 28, 2011, 6:47 AM by Jacob David   [ updated Oct 31, 2011, 8:00 PM ]

Rubble house demolition (service provided by ATS).

  

  

9/28/2011

posted Oct 28, 2011, 6:31 AM by Jacob David   [ updated Oct 28, 2011, 6:35 AM ]

- Triangular rubble column subjected to sag test to measure potential deflection from rubble weight.

  

9/23/2011

posted Oct 28, 2011, 6:21 AM by Jacob David   [ updated Oct 28, 2011, 6:25 AM ]

Further static load testing was conducted.  Hydraulic jack placed to apply loads to center of the wall.

    





9/19/2011 (w/Video)

posted Sep 22, 2011, 7:00 PM by Jacob David   [ updated Oct 31, 2011, 8:19 PM ]

- Wall demolitions were conducted for the public, as demonstrated in the following videos.  Unreinforced concrete masonry showed extensive brittle failure when hit with the battering ram.  The ram was only able to puncture holes in the "rubble wall", causing localized failure on the outer surface.

Brick Wall Test

Rubble Wall Test



- Initial tests on static loading were conducted.  Two hydraulic jacks were fixed to each wall corner.  Each was loaded in increments from 100 psi to 790 psi.  Displacement/deflection were recorded using:
  • Displacement gage frame (homegrown)
  • Video camera footage
  • Manual surveying techniques
  • 3D point cloud scanner (laser scanning)
  

9/12 - 9/17

posted Sep 18, 2011, 8:00 PM by Jacob David   [ updated Sep 18, 2011, 8:23 PM ]



- Concrete added to cover rubble and mesh on building structure
 
  












- ATS completes construction of loading frame with hydraulic jack equipment
   

- Parts for displacement frame and gages assembled
    

9/8/2011

posted Sep 8, 2011, 6:09 PM by Jacob David   [ updated Sep 8, 2011, 6:26 PM ]

- Rubble filled in all four walls!
Rubble Completely Filled


- Placement of concrete finish (stucco) has begun












- ATS has begun assembling the loading frame

9/7/2011

posted Sep 8, 2011, 4:38 AM by Jacob David   [ updated Sep 8, 2011, 4:49 AM ]

- More rubble brought to site (to fill final wall) along with large I-beams (for testing equipment)

I-Beams on top of rubble

- Basket for final wall secured in place

9/5 & 9/6

posted Sep 7, 2011, 5:59 AM by Jacob David   [ updated Sep 7, 2011, 6:02 AM ]

Construction postponed due to Labor Day holiday (9/5) & inclement weather (9/6).

Concrete finish will be added to 3 completed walls beginning 9/7.  Rubble to added to fourth wall as soon as material arrives.

9/1 & 9/2

posted Sep 7, 2011, 5:51 AM by Jacob David

- Rubble filled into wire baskets for 3 of 4 walls.


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