![]() ![]() ![]() Martin Van Buren was president, a financial crisis was in the news and America's most popular song was, ironically, “ Woodman, Spare That Tree.” Steel was a scarce commodity in those days and the old blade caught the eye of a young visiting blacksmith named John Deere, who took it home. The mill was probably filled with the nutty scent of freshly cut white oak and one imagines that the discarded blade was covered in a layer of fine, pale sawdust. The main area of interest was actually the deflection, as the larger of the 2 beams is 5.5 meters (18 feet) long.In 1837 in an Illinois sawmill, a long, steel saw blade broke. My Stress studies showed that the maximum Von Mises stress was well within the yield for the material used. This area of the project was the highest risk, and because of this, I ran some of my own calculations in Inventor using the FEA environment. From the image below, you can see the opening in the walls, and pretty much the full extent of the steels. ![]() We knocked out a corner of the bottom floor, and needed to support our upstairs neighbours. Luckily I was able to catch this, and we were able to rectify the situation BEFORE any work was carried out.īelow is a picture of the major structural work. supporting structural beams on non load bearing stud wall). ![]() The scary part of all of this is that human error happens, and on 2 of the 3 areas that needed the structural engineers attention, mistakes were made (i.e. I employed a structural engineer to do all of the calculations and specify the steel beams that are ultimately going to support the structure. A lot of the project has involved structural work and some pretty heavy steel work. We are about half way through having an extension added to our home. ![]()
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