Correction for WSN application in Civil Engineering
This is my correction for WSN in civil engineering application that I mention in here.
Airbus A-380 is currently the largest civil airplane that human ever made. Therefore, its hangar must be very big too (otherwise it won’t fit inside the hangar). The most difficult part when you build this humongous hangar is that it is column-less..which means that for 100 meters of the hangar width (the airplane’s width is 78.9 m), you cannot have any column block to hold the roof.
So, here’s how they built it.
First of all, the roof and the wall was built on ground. Take a look on the picture.
The long steel construction is the roof of the hangar. The tower (red color tower) that you see is the crane to pull the roof to top (the hangar wall is far left with grey color). The problem is that you cannot pull tons of steel construction just like that. It will break in the middle. So, you need to pull it carefully while monitoring the steel strain. So here’s what my company did:
They add wireless strain gauge in the construction. So, the developers can pull up the roof carefully, while looking at the strain gauge reading in their monitoring room (..not shown here). Wireless was ideal choice, otherwise they have to wire 80m x 100m hangar roof, before they can read the strain gauge during the roof pull up.
And, here’s the view after they pull up the A380 hangar roof:
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