Need advice for supporting Concrete porch for wall repair
Need advice for supporting Concrete porch for wall repair
(OP)
I am planning on replacing a block wall that supports a 16x10 concrete slab porch on the front of my house. The 16 foot length wall is bowed in at the middle by about 2 inches, I was looking to take the wall completely out, and replace it with new block. the concrete slab is 4" thick, and is 16 feet long by 10 feet wide. It is currently supported by the wall that I am looking to remove, and by 3 concrete pillars on the opposite side of the wall. I am looking for advice on how to jack / support the concrete slab while the outer wall is replaced. I have 2 2x6 by 8 ft beams, and 4 metal jack stands. I was going to place the 2 2x6 boards 2 feet in from the outer edge of the concrete and use a jack to lift the wood and place the metal supports under the wooden beams to get the weight off of the wall so it can be replaced. does anyone have any suggestions or advice for the beam placement, or positions that can make the supporting of the slab safer / better?





RE: Need advice for supporting Concrete porch for wall repair
You should be able to jack the slab slightly to remove the existing wall. Don't jack it more than about 1/8", as you might start to crack the slab if it is restrained in other locations.
Be sure you shore the entire area underneath if you are going to be working under there. That 16'x10'x4" slab weighs roughly 7500 lbs. You don't want that coming down on you or your fingers!
RE: Need advice for supporting Concrete porch for wall repair