Square tubing load capacity chart

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Square Tubing Deflection Calculator

Thread: Load capacity of rectangular steel tubing. Load capacity of rectangular steel tubing. I need to build a hoist inside of a trailer capable of lifting lbs due to space I need to make this out of as small a tubing as possible. My question is how small of rectangular tubing can I get by with to lift pound in the middle of a inch span?

I was hoping that 2x3 rectangular tubing with a. Anybody have some math that'll support this? Also the two supporting posts 2x2. Thanks so much any help is appreciated! Last edited by Kelly Bramble; at PM. Anyone, I am making a giant xmas tree that I am building over an escalator.

So it is a giant walkthrough tree. The escalator is 12' wide approx. My question is: I need to find out the load capacity of 2" x 3" rectangle tubing because I want to use this in the base for the verticals. Can someone help with this? I have attached this drawing so you have an idea of what I am talking about. Its alittle hard to explain. Attached Images plaza tree v1 line drawing. Not ikea lidhult sofa review trivial or easy to volunteer for question.

To answer your question correctly - somebody will need to spend many hours on this design Hire somebody Tell me and I forget. Teach me and I remember. Involve me and I learn. All times are GMT The time now is PM.Hot Threads. Featured Threads.

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Forums Engineering General Engineering. How to determine the max load capcity of a steel square tube. Thread starter blake92 Start date Jul 18, A square tube beam, 4in x 4in x. Last edited: Jul 18, Related General Engineering News on Phys. Max load capacity for what type of loading?

Point load at the center when the ends are rigidly secured? Distributed load over the length of the beam when one end is fixed and the other is cantilevered? Bearing strength? Tensile Strength? Baluncore Science Advisor. The worst case situation will be when a load is applied to the point at the centre of the upper surface of the beam.

The top surface will be punched through, or will collapse and pull in the side walls. As the upper tube surface approaches the lower surface, the tube will bend because separation of the top, compressionand the bottom, tensionfaces has been significantly reduced.By mr. I am in the process of starting to design my Smart Car, deck. I usually over-engineer stuff so I am looking for some kind of chart or a formula that can be used to calculate how much weight a particular type of structural steel can support at the end of a 3 foot long span only supported at one end.

Now that I have you confused, how much weight can be hung at the end of the square tube without it failing in any way? If I use 2, pounds as the weight of the Smart Car, that means that the load that will have to be supported in four places that protrude beyond the channel iron is pounds each. So if I were to place a piece of 2"x2" square tubing every 12inches that would give at least two pieces of 2"x2" square tubing under each tire of the Smart Car.

So if someone could point me toward some sort of chart or simple formula that could be used to figure the load bearing capacity of square tubing, channel iron and I-beam it sure would be helpful.

Someone elsee can feel free to check my numbers, its been a long time since strength of materials class. Using psi as the max allowable stress, I get lbs per tube. I use psi, as it minimizes the chance of fatigue cracking. Yes, there will be an outside rail to tie everything together. My thinking was that the tubing coupled with the deck should be more then enough for the load but I just wanted to get the opinion of others before I start buying-cutting steel.

Thanks for your reply. Channel welded to angle iron bolted to chassis. I was thinking of using 6 inch channel iron, making two rails of the channel iron that will run the full lenght of the bed then use the square tubing for cross stringers. I DON'T want to use chains but I want to build this deck so that will be clearance for chains should I ever find myself in a situation where I need them.

My thinking is the 6 inch wide channel stood on edge would give me the lift I need to have the stringers far enough away from the tires so that I could reach in there to install chains if needed.

I don't want the top of the deck surface to go any higher above the truck frame then 8 inches in order to keep the break over angle as small as possible to make loading and unloading the Smart Car, easy.

Keeping it low has a disavantage also. Not enough room for ramps.

Hollow Rectangular Beams Deflection Calculation

I built a storage unit at rear of my truck beneath deck for ramps because of this. I have room for chains. That is my plan, I have enough room behind the rear axle under the truck frame to build a ramp storage box. I did at first carried mine on top of bed. Seems like it was less work to use that way vs where they are now.Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro.

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Why Are I-Beams Shaped Like An I?

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Results 1 to 5 of 5. Thread: Strength of rectangular tubing. Thread Tools Show Printable Version. Strength of rectangular tubing I am trying to figure out what size rectangular tubing would have the most strength for a given load at the center of a 10 foot length. I have two sizes available, 2x3x. What would either of these be able to support at center if placed on edge?

I used second moment of inertia instead of section modulus. Thanks for John Oder for setting me straight. I have corrected the explanation below: The strength of a beam in bending is proportional to the beam's section modulus. This value is calculated from the geometry of a beam's cross section. A google search will turn up tables of section moduli for common shapes like I-beams, circles, and rectangles. In your case I will assume that the beam is being bent "the hard way. A tube is actually composed of two nested rectangles, one defining the outer wall and one defining the inner wall.

To calculate the modulus of the tube shape, we must subtract the inner rectangle's section modulus from the outer rectangle's section modulus. For the 2"x3"x0. Henry Wettersten. Thanks, Henry, for an explanation so clearly written that even I can understand it!Please enable JavaScript.

The Column Buckling calculator allows for buckling analysis of long and intermediate-length columns loaded in compression. The loading can be either central or eccentric.

square tubing load capacity chart

See the instructions within the documentation for more details on performing this analysis. See the reference section for details on the equations used. The results of the column buckling analysis are detailed below. Refer to the column buckling analysis reference section for details on how these results were derived.

square tubing load capacity chart

The Factor of Safety FS on stress and on applied force is:. NOTE: It is up to the discretion of the engineer to determine the appropriate factor of safety to use in design. This section details the properties of the column material and geometry based on the provided inputs. The column will buckle in the direction with the least resistance to bending the "weak axis". This analysis uses the properties for the weak axis. Relevant properties for both axes are given below:.

square tubing load capacity chart

The column properties are summarized in the table below. The calculations of the column properties follow the table. The effective length factorKis based on the end condition:.

The slenderness ratio of this column is:. The eccentricity ratio of this column is:. The transition slenderness ratio is calculated below.

A column with a slenderness ratio above this value is considered long:. The transition length is calculated below. This is the length above which the column is considered long:.Log In. RE: Load capacity of Aluminum tube thanks so much for your help.

Just for future reference how did you get the in. RE: Load capacity of Aluminum tube If you are welding the T6 alloy you must use the as welded condition or reheat treat postweld solution heat treatment and artificial aging in order to restore some strength and return the structure to the -T6 temper.

The T6 base materials, as purchased, has a typical tensile strength of 45 ksi before welding. The AWS D1. In the as welded condition T6 with ER rod we often use 19 ksi yield strength, with ER rod we use 18 ksi yield. The welding rod must be selected with heat treat plans some fillers undergo undesirable changes if subjected to heat treatment and final finish in mind some fillers will change color during anodizing.

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Students Click Here. Related Projects. I am considering building some aluminum ramps, that would be 5ft long.