Would it be feasable to simple place a 2x12 on either side of the wall, through bolt it and pull out the whats in the middle to open the wall up? We are limited on head room since the next course of block above the lintel is where the floor joists are let in to the block, so a header underneath doesn't look like an option. There are 7 course of block above the opening along with a 2圆 roof rafters with metal roofing and then the header for attaching the additions 2x8 roof rafters and metal roofing. We are looking at possibly opening this area up so that we would have better access to the main shop part and clear span the opening, which would be approximately 14' when done. The front wall - 30", has an approximately 6' opening already, but is setup for around an 8' opening with the concrete lintel and a 30" man door with 4' concrete lintel. We recently installed a 14'x30' pole barn style addition to the front of it. By being proactive I am trying to expand my limits to not need to require a DP for this but so far I'm not there yet.I have a 20'x30' 1.5 story concrete block building that I use as my shop. That experience and my over-all lack of knowlege on this subject brings to mind one of my favorite Clint Eastwood quotes: " a man has got to know his limitations". I asked him if he installed them with that droop? I wouldn't approve it and his engineer did indeed prescribe corrections, explaining the differences in loads between commercial and residential applications to the contractor in his letter. I quickly pointed out the cracks in his lintels, both in the center and at the bearing sides and then pointed out the difference in measurements from the bearing sides to the center of the span of 3/4". He stated he did it all the time on his commercial jobs. I recently had a job where the contractor built his own lintels over two 9' garage door openings. I am looking in to this on the assumption of the following things: 1) there will be no concentrated load on the lintel, 2) he is sticking with his plan to build his own cmu lintel 3) the width is 6 ' or greater. He balked at this and said maybe he could do it another way. A glance at the plan indicated the need for a structural ridge to which I informed him the concentrated load from that ridge on the lintel would require engineering. What I have been told is that the wall will have an opening somewhere in the 6' to 8' width range, with the cmu masonry wall continuing above it all the way to the ridge. I am just trying to be proactive with a little education since my knowlege of this is lacking. The info given to me thus far has only been verbal so I don't know exactly what the plan is. You could use TABLE R611.8(4) and form the "tie beam" up with wood in lieu of the ICF flatform. Compliance with the specific performance-based provisions of the International Codes in lieu of specific requirements of this code shall also be permitted as an alternate.Īs brudgers pointed out SSTD-10 will work and so will the manufacturers tables or any other if they follow the performance based provisions of the IBC. An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code. The provisions of this code are not intended to prevent the installation of any material or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. R104.11 Alternative materials, design and methods of construction and equipment. Click to expand.No you are not limited to the 2006 IRC
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