The hump is likely due to a slightly crowned LVL beam combined with tight or over-length joist tails on both sides. Even if the joists are straight now, they may have been installed with a crown, causing the subfloor to follow the raised profile. Since there’s no deflection or cracking, this was...
Hi! Yes, the AISC's Detailing for Steel Construction (3rd edition, 2009) is still a valuable resource, especially for foundational knowledge and standard detailing practices. While some tools, technologies, and codes have evolved since then—like the increased use of BIM and updates to the AISC...
For a pneumatic test at 10 bar on a 400-meter, 6½-inch Instrument Air Line, nitrogen gas is the safer and more suitable choice over compressed air. Nitrogen is dry, inert, and reduces the risk of fire or explosion. Given the line’s length and no break flanges, use a controlled manifold setup...
