Tower Crane Raising Process

[iansoreta]

is that timelapse?

[recinutah]

@iansoreta Yep, we took a picture every 5 minutes.

[recinutah]

It's a bit hard to see in this video, but there is a piston on the right side, powerful enough to raise the whole top of the crane.

[elprettio]

this has always been so intriguing for me.. thanks for the video but i dont understand how the crane is magically lifting itself for the new parts lol

[turmat01]

how long does it takes them to raise it by 1 section?

[recinutah]

@turmat01 I'm not sure exactly. Seems like it was less than an hour.

[korona3103]

That's SOOO cool!

[RoughChop]

The good old Kangaroo Crane. Those Aussies were so clever to come up with that idea.

[waincanb]

I still don't get it. How do they bring a tons of cement cube and put it at the end of a crane without losing balance???

[recinutah]

@waincanb The Cube going in is a steel frame, not cement. The lift is just another steel frame slight bigger so the new segment can slide inside. As to how they keep such perfect balance, that's the tricky part.

[waincanb]

@recinutah

Thank you for your reply and thank to Youtube. I wonder why I never search through youtube before. Now I completely understand how they put a counterweight onto an end of jib.

[TigerXtrm]

@waincanb Lots and lots and lots of math.

[chieftanzzz]

@waincanb There are counter weights on the other side of the load. Its those big Square plates/boxes on the other side over hanging the crane from where the arm is. usually made of cement or lead.

[fugehdehyou]

@chieftanzzz he didnt ask what they were but how they were put there

[dttr1221]

@waincanb Counterwieghts



[Tjita1]

Looks a little jiggly..

[kuldudus]

Now i know. So thats how they do it.

[XtraXtraodinaire]

ohh now i get it

[paranoiac789]

For a very long time I have wanted to know how the crains are built)

[dotbstudios]

So how do they do this?

[recinutah]

If you look on the right side, you can see the huge piston that jacks up the whole top of the crane.

[m4ssee]

Nice lag

[yyusenet]

didn't know thats how they do it

[boraboy4ever]

so thats how they do it.

[Spyplane2008]

I often wondered it myself.