Cranes. How are they built on skyscrapers?

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Cranes. How are they built on skyscrapers?

2006-09-29 06:27:21 · 2 answers · asked by amikeperry 1 in Science & Mathematics ➔ Engineering

2 answers

this will answer all ur questions about it
http://science.howstuffworks.com/tower-crane.htm/printable

2006-09-29 11:47:50 · answer #1 · answered by koki83 4 · 0⤊ 0⤋

The cranes that are used are called tower cranes. They are ussually self erecting. Meaning that their power source is used to install the crane as well as disasemble them selves.

2006-10-02 13:33:04 · answer #2 · answered by unpop5 3 · 0⤊ 0⤋