Man I gotta tell ya, I think they are called "moving canopies" or "portable canopies" They are canopies that can be moved. CTCBMs (pronounced cutbums)
I've had a lot of projects on military bases. Acronyms, abbreviations, totally different type of English, you know?
One year I told the crew "This summer we will call traffic cones L-99s"
It took the inspector and QA
guys a month or so and they finally asked "what is this L-99 thing you guys are always talking about?" "Oh I said, its a vehicular/pedestrian pathway flow control device" (we had come up with an acronym, like L-99 VePPOCoD something like that). Then I held up a cone. They laughed and being good sports adopted our terminology with great gusto. I wonder if those guys still call them that.