How is the length of a developed section calculated in BOM lists?

Posted Wed, 30 Dec 2009 00:42:46 GMT by Bart ROHAL Steel Detailing Online Inc President/steel detailer

Why is a user section (try as a 3/16" L bent plate) from a
folded beam 3/16" too long in the BOM? Developed length
should equal inside bends, but seems to add the thickness of
plate.

Answer

Posted Tue, 05 Jan 2010 00:00:00 GMT by

Hello,

DIN mean "Deutsches Institut für Normung" - in english: "German Institute for standardization". This institute developed a spreadsheet for the additional length of folded plates with a thickness from 1 to 20 mm. The additional length subjects to the thickness of the plate, the angle and the radius of the fold.

Please attend of the unit of length "mm".

Best regards

Udo Haedicke

Answer

Posted Tue, 05 Jan 2010 11:14:08 GMT by Dumitru BERTEANU Graitec ROMANIA

Hello,

In the case described, Advance Steel calculates the developed lenght by using a median unfold line of the respective profile. You can change the way Advance Steel calculates the unfold line to inner contour, outer contour, pure median line, table and DIN from the default : "Expansion method for unfolding", located in the "General" category.

Best Regards,
Dumitru Berteanu.

Posted Tue, 05 Jan 2010 18:22:13 GMT by Vincent BURNETTER Lapeyre Stair guy

What does DIN mean?