If you don't mind, perhaps you could answer further questions.
1. Without the big crane to lift it, how would they get "a small ''lifting crane'' or derrick in place on the floor above"? Elevator? Helicopter? Install a second crane?
2. How would they attach steel cables to the damaged boom? Crawl out onto it while wearing a safety harness?
Sounds like someone is gonna get really paid now!
Usually there is a material/personnel hoist(elevator) erected on the outside of every highrise construction project in every major city and the derrick would be hauled up and assembled . And yes, it would require men, ‘’riggers’’ to have to crawl out as best they can wearing safety harnesses to undertake the job. They’re well paid for it— and well trained. “Walking steel’’ is not a job for the faint-hearted. The main enemy right now is the high winds. Even without a hurricane OSHA laws and union and insurance regulations prohibit a normal work day raising steel and heavy loads if it’s raining or the winds are too high. There is every chance because of the weight of that boom and the way its hanging it could pull the whole crane down. Helicopters aren’t used in NYC for this kind of work and NYC prohibits helicopters flying over Manhattan for some thirty years now as the result of a deadly accident that long ago.
Usually there is a material/personnel hoist(elevator) erected on the outside of every highrise construction project in every major city and the derrick would be hauled up and assembled . And yes, it would require men, ‘’riggers’’ to have to crawl out as best they can wearing safety harnesses to undertake the job. They’re well paid for it— and well trained. “Walking steel’’ is not a job for the faint-hearted. The main enemy right now is the high winds. Even without a hurricane OSHA laws and union and insurance regulations prohibit a normal work day raising steel and heavy loads if it’s raining or the winds are too high. There is every chance because of the weight of that boom and the way its hanging it could pull the whole crane down. Helicopters aren’t used in NYC for this kind of work and NYC prohibits helicopters flying over Manhattan for some thirty years now as the result of a deadly accident that long ago.
Sorry for the double post.