I am using RAM Connection for a base plate. The base plate has both uplift and shear concurrently. I was looking to see how the interaction of tension and shear was done on the weld and cannot figure out what RAM is doing to calculate the demand.
It says fv = V/Lshear and fa = P/L.
Lshear is half of L and Lshear + L usually add up to the perimeter of the shape, but not always (ie an HSS4x4x1/4 has Lshear = 6.6" and L = 13.2" for a total of 19.8", I am getting 15.2" for the perimeter).
Where in the code is it stated that Lshear should roughly 1/3 of the total perimeter and L should be 2/3 of the total perimeter? I have looked everywhere in the code and commentary.
Thanks,
Turner
AISC design? Check DG1 page 35. We calculate an effective width (beff) and a tension per bolt (T), then multiple T/beff times the weld length (L) to determine the total weld demand.
Hi Seth,
Thank you for your quick reply.
I understand that weld check, that is listed as the 'Weld Capacity' check under RAM Connections results. I am trying to gather how you got the demand for the 'Elastic Method Weld Shear Capacity' and 'Elastic Method Weld Axial Capacity'.
Can you send your file (insert it into your reply as a zip file, or use Secure File Upload )? In my test it was just pure tension and I was able to equate the bolt tension to the total weld demand as noted above.
1638.example.zip
In the results see Column: See 'Elastic Method Weld Shear Capacity' and 'Elastic Method Weld Axial Capacity'
Any updates on this question?