Tag Archives: erection

Keep it up

Construction, , , , ,

Many times lately, I hear that the recent increase in construction is causing a shortage of skilled workers resulting in an increased rate of workforce injuries and accidents. I don’t know the validity of the claim, but more than the typical number of prefabricated metal building structural failures have come to my attention within just the last few months. Two of these incidents involve complete collapse of structures very much identical to my own typical project. I am acutely obsessed with these circumstances.

Far from morbid curiosity, I have always made it a practice to follow construction accident occurrences and look for lessons that may apply to my own procedures. In particular, I consider prefabricated metal building erection related failures a valuable opportunity to evaluate if I may be exposing my crews to unanticipated risks. Complacency is a deadly state when it comes to any inherently risky process. Experience can work against you. When you have gotten away with something time after time, you may be led to believe a less than certain method is perfectly safe. It may well be, until it isn’t.

Two such incidents I am currently following are the SL Aviation Hangar collapse at Morristown Municipal Airport in New Jersey and the Argyle High School practice facility collapse in Texas. Both of these projects  represent, precisely, the typical CMBSC project. We complete dozens of very similar projects every year. My take away at this juncture:

  • Metal building erection is a risky endeavor not to be entered into without the appropriate training, experience and oversight.
  • There is no amount of bracing and redundancy that is unwarranted. If there is a next level of preparedness, you should be there already.
  • Near misses and incident reviews are learning opportunities. Don’t waste them.
Julio Ledesma Photo
Julio Ledesma, 36

Note: Several workers were injured in the course of the incidents discussed below. At the Argyle collapse, Julio Ledesman (36) was deceased as a result of his injuries. Mr. Ledesman was a father of 3 young girls, you may contribute help to the family at this link.

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iPad On The Jobsite

Construction, ,

Generally, I find the iPad to be clumsy and unsuited for use out in the field. It’s just too big and awkward to carry around in my opinion. When I do bring my iPad out of my truck, I am constantly laying it down and sure to leave it behind. Even when I have it nearby, my first instinct is always to reach in my pocket for my iPhone when I have a need to be connected. This doesn’t mean the iPad is not a valuable tool for me, I find many ways that it can enhance my productivity in the course of the work week while out in the field.

What inspired me to write this post is my recent foray into creating a crane lift diagram for a crane lift plan on a jobsite last week. Using a drawing app (I can recommend iDraw which is what I used) I imported a photo of the site plan encompassing the area that we’d be working in. I used that photo as a background, added another for the crane placement. Whipped up some representations of the materials we were lifting and copy/pasted a table of the sequence of lift operations with weights and capacities.

You can see the result here- Example Lift Diagram.

This whole process took me very little time and I was still learning to use the tools. Once I have saved a few reusable shapes and refined my technique, I can see turning these out regularly in just a few moments prior to any lift. Now that is something I would not want to do on a smaller screen, but I still think the iPad stays in the truck for the most part.