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how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
The width is 60 feet and the height is 20 feet in the center .. The load
will be spanned 2 feet in the top center of the arch. If tube is not bent , it can be welded every 10 feet of the arch and a piece of flat strap welded to butt welded joint to strengthen to joint. We are actually trying to support something 2 feet wide by 30 feet long weighing 1300 pounds. The arched tubing will be fastened to a roof above which will not allow it to shift. I want to support the 1300 pound weight sitting on the arched steel roof above. The arched steel roof already exists, I just want to add arched steel support underneath. I do not want to use any of existing roof to support weight because I want to maintain prior engineered snow loads. I can bolt into roof to reduce shifting The roof is 18 gauge steel, int the shape of described arch. The base if the new support arch of 2"x6" ? Square tubing can be anchored in to cement at ends by use of steel plating and anchor bolts. -- posted from http://www.polytechforum.com/metalwo...an-594636-.htm using PolytechForum's Web, RSS and Social Media Interface to rec.crafts.metalworking and other engineering groups |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
On Sat, 22 Mar 2014 17:18:02 +0000, Joe
wrote: The width is 60 feet and the height is 20 feet in the center .. The load will be spanned 2 feet in the top center of the arch. If tube is not bent , it can be welded every 10 feet of the arch and a piece of flat strap welded to butt welded joint to strengthen to joint. We are actually trying to support something 2 feet wide by 30 feet long weighing 1300 pounds. The arched tubing will be fastened to a roof above which will not allow it to shift. I want to support the 1300 pound weight sitting on the arched steel roof above. The arched steel roof already exists, I just want to add arched steel support underneath. I do not want to use any of existing roof to support weight because I want to maintain prior engineered snow loads. I can bolt into roof to reduce shifting The roof is 18 gauge steel, int the shape of described arch. The base if the new support arch of 2"x6" ? Square tubing can be anchored in to cement at ends by use of steel plating and anchor bolts. You say the load is 30 feet long, supported every two feet. So, if the load is uniform, it will be supported in 15 or 16 places. If we assume 15 places then each arch of the building will need to support 86.67 pounds. My steel arch building, which I think is similar to yours, is rated for 70 pounds per square foot snow load. However, your building is twice as wide as mine and two feet taller. What is you building rated for? Do you get that much snow? Since I never get more than 8 inches of wet snow I would not hesitate to put that type of load on my building if I needed to. ERS --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch60'wide x 20'
On Saturday, March 22, 2014 1:18:02 PM UTC-4, Joe wrote:
The width is 60 feet and the height is 20 feet in the center .. I am confused. How many arches are you planning on having? One, two, or many? Two thoughts: One is can you support it by the roof and when it snows , lower it to the ground. The second is that it would take less steel if you figured out how to beef up the roof. Dan |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
"Joe" wrote in
message roups.com... The width is 60 feet and the height is 20 feet in the center .. The load will be spanned 2 feet in the top center of the arch. If tube is not bent , it can be welded every 10 feet of the arch and a piece of flat strap welded to butt welded joint to strengthen to joint. We are actually trying to support something 2 feet wide by 30 feet long weighing 1300 pounds. The arched tubing will be fastened to a roof above which will not allow it to shift. I want to support the 1300 pound weight sitting on the arched steel roof above. The arched steel roof already exists, I just want to add arched steel support underneath. I do not want to use any of existing roof to support weight because I want to maintain prior engineered snow loads. I can bolt into roof to reduce shifting The roof is 18 gauge steel, int the shape of described arch. The base if the new support arch of 2"x6" ? Square tubing can be anchored in to cement at ends by use of steel plating and anchor bolts. To narrow your search, look into truss design and column buckling strength, the "column" being the long truss components. http://en.wikipedia.org/wiki/Buckling |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
replying to etpm , Joe Farmer wrote:
etpm wrote: On Sat, 22 Mar 2014 17:18:02 +0000, Joe You say the load is 30 feet long, supported every two feet. So, if the load is uniform, it will be supported in 15 or 16 places. If we assume 15 places then each arch of the building will need to support 86.67 pounds. My steel arch building, which I think is similar to yours, is rated for 70 pounds per square foot snow load. However, your building is twice as wide as mine and two feet taller. What is you building rated for? Do you get that much snow? Since I never get more than 8 inches of wet snow I would not hesitate to put that type of load on my building if I needed to. ERS Sorry , I didn't give the right amount of load. The load is 600 pounds in 30 feet. The building roof I'm trying to support is made by AmericanSteelSpan. What I'm supporting is a conveyer for grain , being set on top of the roof. The roof is designed to support 37# /foot snow load. I don't want to steal from that in case I have alot of snow sometime. I hope I'm not confusing things , but what I'm supporting is the CONVEYER on top of the roof. I mentioned the conveyer weighs 600 # and is 30 feet long. It is actually 60 feet long and 1200 #, but I was planning on putting up 2 of the arches of 2"x6"x1/8" wall arches directly underneath the roof. -- posted from http://www.polytechforum.com/metalwo...an-594636-.htm using PolytechForum's Web, RSS and Social Media Interface to rec.crafts.metalworking and other engineering groups |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
On Sun, 23 Mar 2014 16:19:03 +0000, Joe Farmer
wrote: replying to , Joe Farmer wrote: dcaster wrote: I am confused. How many arches are you planning on having? One, two, or many? Two thoughts: One is can you support it by the roof and when it snows , lower it to the ground. The second is that it would take less steel if you figured out how to beef up the roof. Dan the load actually is 1200# in 60 feet. I was planning on using 2 of the arches made of the 2x6 material. I thought if I could out how much weight the 2x6 material would support, then I could figure out if two were enough. I may have to switch material? The conveyer on the roof cannot be lowered in the winter. I need it's use year around. The conveyor will be bolted to the roof. Again if I could find out how much weight the tubing in that arch could support , it could help alot. Greetings Joe, It depends on which way the 2 x 6 tubing is loaded. If the tubing is loaded on the 2 inch wide direction it will be 27 times stiffer that putting the load across the 6 inch dimension. Which way are you going to use and how much deflection can you tolerate? Eric --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
"Joe Farmer" wrote
in message oups.com... replying to , Joe Farmer wrote: dcaster wrote: I am confused. How many arches are you planning on having? One, two, or many? Two thoughts: One is can you support it by the roof and when it snows , lower it to the ground. The second is that it would take less steel if you figured out how to beef up the roof. Dan the load actually is 1200# in 60 feet. I was planning on using 2 of the arches made of the 2x6 material. I thought if I could out how much weight the 2x6 material would support, then I could figure out if two were enough. I may have to switch material? The conveyer on the roof cannot be lowered in the winter. I need it's use year around. The conveyor will be bolted to the roof. Again if I could find out how much weight the tubing in that arch could support , it could help alot. You could measure the deflection by hanging pallets of weighed sandbags from the arches, but that won't tell you the margin to failure from snow and wind loads. Ask Joe Trussmaker to evaluate your problem. http://www.midwestmanufacturing.com/...oductTypeId=17 |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch60'wide x 20'
On Sunday, March 23, 2014 12:18:02 PM UTC-4, Joe Farmer wrote:
Sorry , I didn't give the right amount of load. The load is 600 pounds in 30 feet. The building roof I'm trying to support is made by AmericanSteelSpan. What I'm supporting is a conveyer for grain , being set on top of the roof. The roof is designed to support 37# /foot snow load. I don't want to steal from that in case I have alot of snow sometime. I hope I'm not confusing things , but what I'm supporting is the CONVEYER on top of the roof. I mentioned the conveyer weighs 600 # and is 30 feet long. It is actually 60 feet long and 1200 #, but I was planning on putting up 2 of the arches of 2"x6"x1/8" wall arches directly underneath the roof. You need to add the weight of the grain on the conveyor to get the total weight. I would contact AmericanSteelSpan and see if they have any suggestions. They might have run into this same situation before. I am not a mechanical engineer, but I would think that adding to the building supports would be the best solution. Maybe AmericanSteelSpan has a way to increase the buildings snow load capability. Dan |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
replying to etpm , Joe Farmer wrote:
etpm wrote: On Sun, 23 Mar 2014 16:19:03 +0000, Joe Farmer Greetings Joe, It depends on which way the 2 x 6 tubing is loaded. If the tubing is loaded on the 2 inch wide direction it will be 27 times stiffer that putting the load across the 6 inch dimension. Which way are you going to use and how much deflection can you tolerate? Eric --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com I'm loading it on the 2" side . The number of arches can be decided when I find out how much one will support. The building is an arch building 60' x 150' long. The arches are in a 60' span. -- posted from http://www.polytechforum.com/metalwo...an-594636-.htm using PolytechForum's Web, RSS and Social Media Interface to rec.crafts.metalworking and other engineering groups |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
replying to etpm , Joe wrote:
etpm wrote: On Sat, 22 Mar 2014 17:18:02 +0000, Joe You say the load is 30 feet long, supported every two feet. So, if the load is uniform, it will be supported in 15 or 16 places. If we assume 15 places then each arch of the building will need to support 86.67 pounds. My steel arch building, which I think is similar to yours, is rated for 70 pounds per square foot snow load. However, your building is twice as wide as mine and two feet taller. What is you building rated for? Do you get that much snow? Since I never get more than 8 inches of wet snow I would not hesitate to put that type of load on my building if I needed to. ERS --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com I made a correction in another post , but my real load is 600# in 30' or 1200# in 60'. What I really need to know is how much load will a 2"x6"x1/8" wall tubing carry in an arch of 60' wide by 20' high at the center of the arch. -- posted from http://www.polytechforum.com/metalwo...an-594636-.htm using PolytechForum's Web, RSS and Social Media Interface to rec.crafts.metalworking and other engineering groups |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
replying to , Joe wrote:
dcaster wrote: t I e t f You need to add the weight of the grain on the conveyor to get the total we ight. I would contact AmericanSteelSpan and see if they have any suggestions. Th ey might have run into this same situation before. I am not a mechanical e ngineer, but I would think that adding to the building supports would be th e best solution. Maybe AmericanSteelSpan has a way to increase the buildin gs snow load capability. Dan I used them in the past and the building failed. I don't trust their opinion alone. If I know how much the 2'x6'x1/8' wall carries in an arch 60'wide x20' high in the center of the arch , That may solve my problem. -- posted from http://www.polytechforum.com/metalwo...an-594636-.htm using PolytechForum's Web, RSS and Social Media Interface to rec.crafts.metalworking and other engineering groups |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
"Joe" wrote in
message roups.com... replying to , Joe wrote: dcaster wrote: ... Maybe AmericanSteelSpan has a way to increase the buildings . snow load capability Dan I used them in the past and the building failed. I don't trust their opinion alone. If I know how much the 2'x6'x1/8' wall carries in an arch 60'wide x20' high in the center of the arch , That may solve my problem. Even if a stranger on the Net was willing to risk a lawsuit by calculating the safe load capacity for you for free, it may not be possible to determine without knowing details like the exact design of the joints between arch sections, how well they are cross-braced against buckling, the properties of the steel used to make it and if ill-advised bending into arches weakens it. And then, if it was properly assembled on a foundation that can resist the downward and spreading loads. "Commercial Steel" doesn't indicate much yield strength, consistency or quality control: http://www.mcneilus.com/products/sheet.html http://www.materialgrades.com/a-653a...teels-120.html How did the other one fail, in tension, compression, shear or buckling? http://www.ripoffreport.com/r/Americ...L-MORE--718071 |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
On Mon, 24 Mar 2014 20:18:02 +0000, Joe Farmer
wrote: replying to etpm , Joe Farmer wrote: etpm wrote: On Sun, 23 Mar 2014 16:19:03 +0000, Joe Farmer Greetings Joe, It depends on which way the 2 x 6 tubing is loaded. If the tubing is loaded on the 2 inch wide direction it will be 27 times stiffer that putting the load across the 6 inch dimension. Which way are you going to use and how much deflection can you tolerate? Eric --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com I'm loading it on the 2" side . The number of arches can be decided when I find out how much one will support. The building is an arch building 60' x 150' long. The arches are in a 60' span. Why not add half a dozen more arced tubes (such as used on the inside but 1 to 2' longer) on the outside for the conveyor system, Joe? Attach to the end supports on the building for stability and you're set. The (what, 1.5 or 2"?) tubing can easily handle the 200lbs per ten feet of conveyor and it leaves the roof intact. It would probably be less expensive in the long run, too, plus it leaves your existing building untouched, except for the tie-ins at the 4 top "corners". -- The most decisive actions of our life - I mean those that are most likely to decide the whole course of our future - are, more often than not, unconsidered. -- Andre Gide |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
replying to Jim Wilkins , Joe Farmer wrote:
muratlanne wrote: "Joe" wrote in message roups.com... Even if a stranger on the Net was willing to risk a lawsuit by calculating the safe load capacity for you for free, it may not be possible to determine without knowing details like the exact design of the joints between arch sections, how well they are cross-braced against buckling, the properties of the steel used to make it and if ill-advised bending into arches weakens it. And then, if it was properly assembled on a foundation that can resist the downward and spreading loads. "Commercial Steel" doesn't indicate much yield strength, consistency or quality control: http://www.mcneilus.com/products/sheet.html http://www.materialgrades.com/a-653a...teels-120.html How did the other one fail, in tension, compression, shear or buckling? http://www.ripoffreport.com/r/Americ...L-MORE--718071 First of all I would never expect someone's opinion to be a garrantee. I figure the idea of this site is for educated and experienced guys or gals to give their opinions on things that are their passion. I constantly enjoy bouncing my ideas off of other colleges. I do alot of engineering on the farm even though I do not have an engineering degree. I've learned alot of things from experience. . Yes I could simply hire an engineer and probably get a guarantee.,I can't afford to spend alot of money, but am willing to spend some. Again I personally enjoy communicating ideas with other people ,even though I wouldn't want to garrantee anything. Some engineers will tell you one thing while others will disagree , and that's ok, it's up to me to sort out what Imthink is the right decision with-out holding anyone else accountable. Commercial steel is not consistent , but if I overkill it , it may be just fine. I know I could build catwalk runways wit alot of support, or put up I-beams tall an to the outside of the structure and run cables to negate the weight, but I feel there is probably a cheaper and easier way to attack it. I enjoy your opinion and everyone's on this site. I find the articles on this site interesting. If it wasn't for this site we wouldn't know some of things other people are dealing with each day. Furthermore some comments are made that expand our thinking, things we may never of thought of if it wasn't from someone approaching things from a different angle. Thank you very much for for your opinion:) -- -- posted from http://www.polytechforum.com/metalwo...an-594636-.htm using PolytechForum's Web, RSS and Social Media Interface to rec.crafts.metalworking and other engineering groups |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
replying to Jim Wilkins , Joe Farmer wrote:
muratlanne wrote: "Joe" wrote in message roups.com... Even if a stranger on the Net was willing to risk a lawsuit by calculating the safe load capacity for you for free, it may not be possible to determine without knowing details like the exact design of the joints between arch sections, how well they are cross-braced against buckling, the properties of the steel used to make it and if ill-advised bending into arches weakens it. And then, if it was properly assembled on a foundation that can resist the downward and spreading loads. "Commercial Steel" doesn't indicate much yield strength, consistency or quality control: http://www.mcneilus.com/products/sheet.html http://www.materialgrades.com/a-653a...teels-120.html How did the other one fail, in tension, compression, shear or buckling? http://www.ripoffreport.com/r/Americ...L-MORE--718071 First of all I would never expect someone's opinion to be a garrantee. I figure the idea of this site is for educated and experienced guys or gals to give their opinions on things that are their passion. I constantly enjoy bouncing my ideas off of other colleges. I do alot of engineering on the farm even though I do not have an engineering degree. I've learned alot of things from experience. . Yes I could simply hire an engineer and probably get a guarantee.,I can't afford to spend alot of money, but am willing to spend some. Again I personally enjoy communicating ideas with other people ,even though I wouldn't want to garrantee anything. Some engineers will tell you one thing while others will disagree , and that's ok, it's up to me to sort out what Imthink is the right decision with-out holding anyone else accountable. Commercial steel is not consistent , but if I overkill it , it may be just fine. I know I could build catwalk runways wit alot of support, or put up I-beams tall an to the outside of the structure and run cables to negate the weight, but I feel there is probably a cheaper and easier way to attack it. I enjoy your opinion and everyone's on this site. I find the articles on this site interesting. If it wasn't for this site we wouldn't know some of things other people are dealing with each day. Furthermore some comments are made that expand our thinking, things we may never of thought of if it wasn't from someone approaching things from a different angle. Thank you very much for for your opinion:) Joe -- -- posted from http://www.polytechforum.com/metalwo...an-594636-.htm using PolytechForum's Web, RSS and Social Media Interface to rec.crafts.metalworking and other engineering groups |
how much load can arched tubing carry,(2"x6"1/8" wall) in an arch 60'wide x 20'
"Joe Farmer" wrote
in message roups.com... replying to Jim Wilkins , Joe Farmer wrote: muratlanne wrote: First of all I would never expect someone's opinion to be a garrantee. I figure the idea of this site is for educated and experienced guys or gals to give their opinions on things that are their passion. I constantly enjoy bouncing my ideas off of other colleges. I do alot of engineering on the farm even though I do not have an engineering degree. I've learned alot of things from experience. . Yes I could simply hire an engineer and probably get a guarantee.,I can't afford to spend alot of money, but am willing to spend some. If it was my problem I'd go see if the truss people could add an independent support inside. You need to support only a point load in the center so the design is pretty simple. They might even have something left over from a cancelled order. jsw |
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