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I am currently finishing the framing of a large custom home and we noticed that a cantilevered area is sinking and causing the floor to deflect. The engineer has given us a fix once we get the house jacked up but I have no idea how to get it raised back up. The point loads are about one ton each and there are for of them. What scares us the most is the cantilevered area is 16′ high by 30′ wide window wall. Any help in what type of jacks ect would be a great help
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Try renting some screw jacks. We call them house jacks. Some are rated up to 60 tons each. The nice thing about them is that you can adjust them in as small an increment as you want and they won't fade like a hydraulic jack.
Put a beam under the area to be jacked that is heavy enough that it won't deflect much, put enough jacks under it to keep it supported and slowly turn each jack. I've never had to do a window wall but I think it shouldn't be a problem if youtake your time and make sure your jacks are on large enough footings that they don't sink.
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I am currently finishing the framing of a large custom home and we noticed that a cantilevered area is sinking and causing the floor to deflect. The engineer has given us a fix once we get the house jacked up but I have no idea how to get it raised back up. The point loads are about one ton each and there are for of them. What scares us the most is the cantilevered area is 16' high by 30' wide window wall. Any help in what type of jacks ect would be a great help