#WELDING OF HSS SQUARE SERIES#

And there’s different types of connections that can be used for this, and we’re going to explore those in this video series as well. Here we’re talking about wide flames to HSS columns. Mobile connections? These are probably some of the more challenging connections. These are your sure connections or your connections that take in account for the line-loads, directly connected to hollow structure columns. The next type are connections that involve line-loads or concentrated loads. Or your splices when you’re splicing two hollow sections together. Talking about the different types of connection that we’re going to be talking about in this video series, tension and compression, these are your bracing connections for diagonal bracing. So therefore they don’t give much thought to the connections during the design process. They’re too expensive, maybe there’s not enough resources out there, I don’t know where to go to to learn about hollow structural sections connections.” And a lot of time the engineer record doesn’t actually do the design for the connection. Well, the challenges we face with connections when it comes to hollow, structural sections is, you know, people say, “Tthey’re too hard. So now, let’s talk a little bit about connections. Exposed structures as well as robust structures. But there’s horizontal applications such as curved beams where there’s a lot of torsion. Now, where HSS are used are mainly in columns or bracing. If you use square and round HSS, because of their ability to resist loads in any direction, those non- directional loads such seismic or blast, are easy to resist. Also, robust structures and structures that require some blast resistance.

The RX and RY factor: significantly higher than an open section, and gives you a great unbraced length. The torsional constant of a closed section is 200 times greater than that of an open section, which gives its torsional strength. They also have excellent torsion resistance. They also have lower finishing costs because of the lower surface area, fireproofing, and painting cost can be lower. A lot of fabricators like to have them in their shop because they lay down flat, they’re easy to jig. Now, other advantages that HSS have is that they’re easy to handle. They’re also, as I mentioned, they come in square, rectangular, and round sizes, but they do even also come in elliptical sections.

The Atlas tube size range is from one inch up to 22 inch, and we can go up to 7/8-inch wall. They have less surface area and can have less weight in certain applications. As you can see there are many nice structures that have been built out of tubes and hollow structural sections, and that’s the main reason.īut there are other reasons, such as they’re economical. Now, why are HSS used? Well the main reason is for aesthetics. And these come in square, round, and rectangular sizes. Now, what we’re talking about today, is we’re talking about the steel sections, a cold-form welded tube, which I use for bolted and welding construction. Between bones of animals, or stems of flowers, or bamboo, you can see that nature has come up with really a perfect size and shape for carrying structural loads. Now, tube-like structures are a naturally occurring size and shape. But first let’s kind of review and talk about what hollow structural settings are. And today we’re going to talk about connections. I’m structural engineer with Atlas Tube, and today I’m continuing on with our video series on designing with hallow structural sections.

Welding of hss square