Hey, I am carrying out research as part of an undergraduate project to determine the best method of establishing and transferring vertical control during the construction phase of high rise buildings. Does anyone know good papers or have any good advice on this matter, as I am finding it difficult to find material, thanks.
We were just discussing that subject [msg=234016]Here[/msg].
Dave
Has this Converation Continued anywhere?
There is precious little that has been written on the subject of control for tall buildings.?ÿ
Send a message to Scott Zelenak if anyone would know about that he would.
We brought control in with level loops and Robotic stations. All elevation was transferred only from leveling, and then we would shoot up from our control outside the structure to continue laying out grid for the columns( concrete).?ÿ It's precise, frustrating, and rewarding too when you're getting it done, its a huge PITA when you're stuck waiting for the worker bees too getting their decking or supports and ties offs completed and inspected before you can even go out along the "edge".
Once the GC achieved a certain level out of the hole, the just took over with a column mounted robot, and then laid everything out themselves.
I turned down a?ÿ high paying job earlier this year when I saw first hand how loose and sloppy the lay out was being performed on a new bi ol' high rise apartment building. They were just using a tape measure between the ground up to the boom crane, and drawing a line.?ÿ Not even kidding.?ÿ Funny thing too, they were relying solely on the external control and monitoring being done by a hired surveyor who had brought external control up from leveling, and set fixed targets on surrounding buildings for continued reference and monitoring.?ÿ
There are a lot of papers on the subject (contrary to what Mark Mayer says in his post above).
Just what do you call HIGH RISE would be the question. Do you want to include what is called
SUPER HIGH RISE in your work?
Just do an internet search on High Rise Building Survey Control and that will start you in the right
direction. Two papers of interest would be #1. "Core Wall Survey Control Systems for High Rise Buildings"
by Douglas McLhayes (sp) of the U.A.E., Ian Sparks of Australia and Joel Van Cranenbroeck of
Switzerland. and #2. The BOW Project by Roger Leeman/ MMM Group Limited.
Hope this helps get you going.
?ÿ
JOHN NOLTON
?ÿ