Welding strength

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Good day to all. Just want to ask the experts. We are currently constructing a steel framed roof structure right beside an old building. It was proposed that the new steel columns will be joined together to the old steel columns of the old building with steel connectors. My question is: How much weight can one full inch length of weld with a thickness of 1/8 inch hold or support?Thank you very much. Your advice on this query would be very much appreciated. Also, if it isn't too much, can the experts answering my question write their names and credentials as well?David
Reply:You need to consult a P.E. Your shoot-from-the-hip question, reveals much more about your lack of knowledge, than you can imagine.Blackbird
Reply:In a structure like this, it has to be designed and stamped by an engineer. The engineer will also indicate in the drawing how much weld is required at each welded joint.JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:We need to know the credentials of your steel, your filler rod, and your welders first.
Reply:Originally Posted by bentWe need to know the credentials of your steel, your filler rod, and your welders first.
Reply:Originally Posted by David LoGood day to all. Just want to ask the experts. We are currently constructing a steel framed roof structure right beside an old building. It was proposed that the new steel columns will be joined together to the old steel columns of the old building with steel connectors. My question is: How much weight can one full inch length of weld with a thickness of 1/8 inch hold or support?Thank you very much. Your advice on this query would be very much appreciated. Also, if it isn't too much, can the experts answering my question write their names and credentials as well?David
Reply:Geezerbill - loved the disclaimer Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:Ask a P ELast edited by Phil Snyder; 11-29-2015 at 11:06 AM.
Reply:Originally Posted by David LoGood day to all. Just want to ask the experts. We are currently constructing a steel framed roof structure right beside an old building. It was proposed that the new steel columns will be joined together to the old steel columns of the old building with steel connectors. My question is: How much weight can one full inch length of weld with a thickness of 1/8 inch hold or support?Thank you very much. Your advice on this query would be very much appreciated. Also, if it isn't too much, can the experts answering my question write their names and credentials as well?David
Reply:1st on WeldingWeb to have a scrolling sig! HTP Invertig 400HTP Invertig 221HTP ProPulse 300HTP ProPulse 200 x2HTP ProPulse 220MTSHTP Inverarc 200TLP HTP Microcut 875SC
Reply:Originally Posted by Phil SnyderAsk a P E
Reply:My question is: How much weight can one full inch length of weld with a thickness of 1/8 inch hold or support?One anvilWile E. CoyoteAcme Welding and EngineeringEd Conleyhttp://www.screamingbroccoli.com/MM252MM211 (Sold)Passport Plus & Spool gunLincoln SP135 Plus- (Gone to a good home)Klutch 120v Plasma cutterSO 2020 benderBeer in the fridge
Reply:Originally Posted by MinnesotaDaveGeezerbill - loved the disclaimer
Reply:You worried about liability? You mean I can't believe everything I read on the internet?
Reply:I have lots of steel structures on my place and none of them have engineers stamps. What are you building? A small lean to off a steel building to put hay under or a patio over an outside dining area at a restraunt? How big is it going to be? What are you attaching it to? Nothing against engineers and sometimes they are needed but many things can be built around the farm without one. No advice from the Internet can be construed as sound engineering advice but many times what I do is look at what I want to build, the risks involved, and then how similar things are built. For example I just built a 25' X 50' three sided barn to park trailers under. It has six columns with I beams spanning the 25' distance. No engineers involved I just studied how similar things were built and I am comfortable with it on my own property. You certainly need to be careful because if something like this is built and fails it could seriously hurt or kill someone but at the same time you can often use common sense and be ok. In my case I have a 50 X 50 shop that was professionally built and I built my 25x50 with half the spans using the same materials.
Reply:Originally Posted by David LoGood day to all. Just want to ask the experts. We are currently constructing a steel framed roof structure right beside an old building. It was proposed that the new steel columns will be joined together to the old steel columns of the old building with steel connectors. My question is: How much weight can one full inch length of weld with a thickness of 1/8 inch hold or support?Thank you very much. Your advice on this query would be very much appreciated. Also, if it isn't too much, can the experts answering my question write their names and credentials as well?David
Reply:The strengh of weld wire and rod is written on the box, you know the size of the weld so do the math.Remember, this is in a perfect worldLast edited by Phil Snyder; 12-01-2015 at 08:12 AM.
Reply:Originally Posted by DrilldoI have lots of steel structures on my place and none of them have engineers stamps. What are you building? A small lean to off a steel building to put hay under or a patio over an outside dining area at a restraunt? How big is it going to be? What are you attaching it to? Nothing against engineers and sometimes they are needed but many things can be built around the farm without one. No advice from the Internet can be construed as sound engineering advice but many times what I do is look at what I want to build, the risks involved, and then how similar things are built. For example I just built a 25' X 50' three sided barn to park trailers under. It has six columns with I beams spanning the 25' distance. No engineers involved I just studied how similar things were built and I am comfortable with it on my own property. You certainly need to be careful because if something like this is built and fails it could seriously hurt or kill someone but at the same time you can often use common sense and be ok. In my case I have a 50 X 50 shop that was professionally built and I built my 25x50 with half the spans using the same materials.
Reply:You guys  A P.E. has to be licensed or whatever in the state the engineering is done. The OP did not provide that. An example; California has to deal with seismic stuf whereas back east they probably dont. Different stuf to consider.These guys do work worldwide so David lo, I suggest you contact them since you didnt tell us your location or your credentials your steel your filler and welder.http://www.bechtel.com/services/construction/This thread is so funny it should be a sticky. In the comic section.