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Sparweb My apols, but I included the wrong website, although that website may also of interest. The attached includes the correct one.https://files.engineering.com/getfile.aspx?folder=4e4e9782-c923-4b17-a5c6-5707efb94ff2&file=MC-15.txt

Hi Sparweb, Thanks for the feedback which I will go through and check and get back to you. I do actually have an old copy of MathCAD 13 which I'll install and see if I get the same issues. Some of the information on the next 3 pages to the right are part of the StaadPro results I used for...

Sparweb, Thanks for the wow. I must admit I am quite chuffed that I managed to make it quite detailed and as simple as I could for checking using the 3D graphics, which is one of the biggest problems associated with making structural packages. Note. You need to go through it in detail since...

dold Here is another ring program. it was a free download from a website that no longer exists. I remember at the time nearly 20 years ago trying to contact the company (lanxum.com) via their email address/tel number found under the help menu, but they were unresponsive or contactable on the...

dold, Find attached the RoarkRing.exe file which should work on any PC.https://files.engineering.com/getfile.aspx?folder=6b7f60ab-9c80-42c0-8306-a4380e32615c&file=RoarkRing.zip

As requested v11, v12 and v13https://files.engineering.com/getfile.aspx?folder=9842886b-7b2d-4001-9920-ca749a7a0efb&file=3D_Frame_-_WORKING.zip

Sparweb, No problem. I completely forgot that I should maybe save it in an earlier version format. Since I cannot check the compatibility with earlier versions myself, I'll save it as earlier formats and see what the responses are.

Apologies IRstuff. Since my posts were about MathCAD/Structural and Staad, I thought It better if I post on the forum subjects. I'll keep any future new subject posts to a single forum subject.

I take it you mean the code.

Since we only had a few Staad licenses in the office I wanted something simpler to use and because I have my own MathCAD license I didnt need to poach a staad license from my minions. Also, it gave me an insight into the workings of staad which uses the same methodology ie the direct stiffness...

Thanks, it did take some doing. I also have a worksheet that calculates all the roark ring cases, which can be easily combined (i have also programed it in visual basic which also includes pages for calculating ring section properties and can combine several cases and produce a visual plot of...

I have recently created a 3D stiffness analysis worksheet in Mathcad (It includes member end releases, member rotations includes 3d manipulative graphics display which also shows moments and shears for selected members) and has been checked with Staad pro output. The results from the Mathcad...

Furthermore there appears to be an error in Staad with respect to the sectional member stress plots. In many instances the plot 4 corner stress points do not match my Mathcad results. Of course this could be considered a failure on my programs ability to calculate the correct stresses, however...

I have recently created a 3d stiffness analysis worksheet in Mathcad (It includes member end releases, member rotations includes 3d manipulative graphics display which also shows moments and shears for selected members) and have been checking it with Staad pro output. The results from my mathcad...

I'm a little confused as far as I was aware Mathcad should still be able to be used as long as one has the license key file. I actually have 3 licenses. One is now defunct since it was a freebee when I upgraded from 13 to 14 and was on a time lock, however. As long as I change the date on the...

A few points to consider. Although most engineers leave it to the fabricator who gen don't have engineering knowledge about a project (if at all). One should pay attention to full penetration welds where fatigue is concerned since welds shrink creating internal stresses. Generally for static...

Of course you can since they are all active, however. Since generally for simple design where it is assumed some welds carry the tension/compression loads from bending and some welds carry the shear (a simplified conservative approach), you would need to include both load actions(axial from...

I have recently created a 3d stiffness analysis worksheet in Mathcad (It includes member end releases, member rotations includes 3d manipulative graphics dispaly which also shows memnets and shears for selected members) and have been checking it with staad pro output. The results from my mathcad...