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I have one that you all will love. I have a home that the previous owner had a contractor come in and replace the wood main center beam with a 6" steel I-beam. It looks like the floor was jacked up a couple inches and steel beams put in. So far so good, right? Well, right above the steel beam, the entire span of it, the massive floor timbers were notched approximately 6" wide x 4" deep into each joist. This is a very old home and the floor joists are dimentional 2x10's. So, effectively, whoever notched the beam essentially made them 2x6's right in the center of their span. They then sistered standard 2x8 lumber in order to span the groove, using lag screws on one side of each floor joist apparently trying to repair the notch that was made by the previous "engineer". Apparently this looked acceptable to them. Well, now the floor rests on these sistered pieces of wood that are about 2' long and lagged twice to the original joist, on one side only. Guess what, they are literally twisting and pulling away from the original joists due to the weight.
So, now here comes the question. How in the world does this get fixed? It is a 2 story, 1,300 sq foot house. Would it better to jack up on either side of the beam to the desired height, remove the sistered piece and resister with proper lam beams, then install new columns with proper footings? If so, how long and big should the sistered section be, assuming place on both sides of joist and carriage bolted together. Thanks much!
So, now here comes the question. How in the world does this get fixed? It is a 2 story, 1,300 sq foot house. Would it better to jack up on either side of the beam to the desired height, remove the sistered piece and resister with proper lam beams, then install new columns with proper footings? If so, how long and big should the sistered section be, assuming place on both sides of joist and carriage bolted together. Thanks much!