How do they get cranes to the top of new buildings?
452103
The crane is first assembled using a portable crane. Then sections are added to it using a device called a top climber. Basically they detach the top while keeping it balanced on the tower, jack it up 20 feet, insert a new section of tower using the detached but still balanced crane itself (yikes!), and re-attach the crane to the new top.
188816
Sometimes with another crane, sometimes with an elevator, sometimes with a ramp.  Some cranes are made to lift themselves.
538767
It can be done structurally, but the cost and time neccessary to do so would make it impractical.  Plus the limitation on the size of window openings and the thickness of the walls in the lower stories would make it ineffecient from a space standpoint.  Chicago's Monadnock Building is an example of a tall, load-bearing masonry office building.
420480
The swl of the crane is  14T so you need 2 crane (combines lift 2 x14T =28T,\nThe 40' container 1s 25T.\nYou need 2 crane operators to work in tandem to safety execute the operation.\nYour crane operators are competent to carry out the job and you do not mess up with them cause you do not have adequate knowledge on lifting
129239
I'm not sure what water tanks you are asking about.  I'm going to guess that you are referring to city water systems with towers holding large water tanks.\n\nThey are filled by pumps.  Wells are drilled and the water is pumped from them to these large tanks.  From the tanks gravity moves the water throughout the community to meet demand.
821158
it seems crazy that sky scrapers can be so high and not fall down on their own.  this is because it is full of materials that have been tested before to failure.  the structural engineer knows that every beam, joist or member has a certain design load capacity.\n\nby figuring out what the design of the building is, what materials will be used and what the different loads will act on the structure, the structural engineer will be able to adequately design a system that can carry the load.\n\nfor example.  a 5 story building is to be built.  the soil needs to be tested to see if it can support the foundation.  depending on how many people will load the floors, structural beams will be designed to support such loads and more.  most structural systems have been done and tested before so there is plenty of documented evidence that a certain structural system will work.\n\nnot to mention that many structural engineers now build their work virtually.  they can apply different simulations e.g. seismic loads to see if their calculations work and see it virtually withstand the loads.\n\nhope this helps.
439690
Check out what was done on the World Trade Center buildings. They had about the same problems with water in the soil but they are a lot farther away than 1.5 meters. I'd start with a pile-driver to hit solid earth and build the entire thing above sea level. Mother Nature's Ocean will get in.
697499
they are pulling it down so i guess demolition cranes???\n\nbut i do not have Google Earth so i wouldn't know, but if it the same thing that i just checked on google maps. i am right hehe
926936
Its called parkour but its more than just roofjumping. check out parkour.com [plz gimme the best answer since i was first]
141339
These cranes are built on hydroliclifts, that lift the crane up enough to remove a section of the tower.  The lifts, then lower the crane to repeat until each section has been removed to the crane itself, which is hoisted by another crane.
398853
They can expand to whatever size is needed.\nThey can even have babies come out through them!
344700
They can build a column of girders and then hoist themselves atop it. Then once the column is up, they hoist the cross member atop that. Don't forget, there is an engine in the crane. And they can weld things to the girders and all that. So if they need to raise the height of the column they are on top of, they can weld on secure tie points, attach a cable to them and lower the crane with a winch. They don't have to lower it all the way to the ground. Then they can extend the colun by the girders they previously winched up there, which are supported by the column they are on. If this is confusing, try searching for time lapse films of construction. You will see what I am talking about.
1044240
My best guess is paid spectators and an off-cam crane.  Not only is it my best guess, it's the only sane guess I think can be made.\n\nNo group of unpaid, ordinary street schmoes are going to just keep exclaiming "unbelievable" and "are you getting this?" as seen in this clip.
1068775
by tranfering them duh
224346
There is such a thing but unfortunately I have no idea what it's called. I do know that 'they' intend to build a satellite tower that reaches into space with it. It was featured in some magazines about two years ago.
1122044
They sell racks to hold those, either on the floor or hanging on the wall.  Try an artist store, or architect supply store. Even a store that copies blueprints.  Around here there is an Organized Living store and The Container Store, and they usually have systems that might adapt to holding them.
997923
Climb to the top of a very tall building, tie an anvil onto your\npenis, and throw that puppy over the side.