Tower Cranes Marriott HQ
Рет қаралды 372,273
4 жыл бұрынwww.pedestrians.org
Two tower cranes are erected over a weekend for the new Marriott Headquarters building in Bethesda, Maryland.
This video shows the erection of the mast of the south tower crane on Saturday morning, and the erection of the jib of the north tower crane on Sunday morning.
Produced by John Z Wetmore, producer of "Perils For Pedestrians".
@joenewman6939 4 жыл бұрын
My hat goes out to you guys great job crane operator persition my friend
@David-cv1vh Ай бұрын
Great
@alistairmacrae4870 Жыл бұрын
Not wishing to be a spoil sport, the guys with the hammers, if one of these hammers were to drop? The crane driver is something to behold.
@user-oc8pf2hf4z Жыл бұрын
ก่อสร้างไรครับ
@flick22601 4 жыл бұрын
I've seen thousands of these cranes in my life but, this is the first time I've seen how they're erected. How large is the concrete base and how long must it cure before they assemble the crane? Thanks for posting.
@JohnZWetmore 4 жыл бұрын
I don't know the exact dimensions, but it is a pretty massive slab several feet thick. There is a photo in this blog post that shows the four mounting points for the north tower protruding from the middle of the slab. (Click on the photo for a larger version.) pedestrianadvocate.blogspot.com/2019/08/construction-in-bethesda-tower-cranes.html
@JohnZWetmore 4 жыл бұрын
On another site they were pouring the foundation today (Wednesday) for a tower crane that will be erected Saturday. So they only needed a few days for the concrete to cure, even though it might take a bit longer to reach full strength.
@miguelainaga7658 11 ай бұрын
Todos mis respetos para esas personas,yo jamas me subiria a esas alturas
@AM-dn4lk 10 ай бұрын
So how did they assemble the other crane which lifted the components for this crane?
@JohnZWetmore 8 ай бұрын
They use a "small" crane to assemble the big crane, which assembles the tower crane. The rigging crew starts very early in the morning.
@user-ph8ge7fy3b 4 ай бұрын
👏👏👏👍👍
@philcollins2289 Жыл бұрын
rien de compliqué 👏🇨🇵🖐️
@lrmuanpuia9929 9 ай бұрын
Fulll sport😮😮
@gerardochacon1743 Жыл бұрын
Kiero montar una torre grua autoestable de espamex j 47 ns
@bertferri-5685 Жыл бұрын
Huge respect to these riggers. I get vertigo on a step stool reaching for the cereal box on the top shelf!😊
@Ifantoys 9 ай бұрын
Sungguh sangat luarbiasa...,dan saya merasa hormat kepada para pekerjanya yang sangat pandai sekali,salam dari Indonesia 🇮🇩🇮🇩🙏🙏
@marcneville42 8 ай бұрын
Los trabajadores: a sus cojones estan muy grande.
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