Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
(OP)
Hi guys.
Im doing some work on retrofitting of 70 warehouses - new roof enslosures & roof mounted plant.
Im going through the process of capacity checks on existing purlins - vary from site to site.
I need table of properties for them - much like we would use for normal heavier steel sections.
Im working in Australia but am trying to use Design Spreadsheets I built for design to Eurocode - put cant get the section rpoperties table I need and its a pain in the Arse to calculate them from scratch for different sections and sizes.
Cheers folks
PS Is there any reliable free software package out there for cold formed/light gauge products? Even if its to ASTM, BS, EC or whatever major standard?
Most of what I have built myself is for regular steel (RSJs, Universal BEams, Universal Columns, CHS, RHS, etc)
Im doing some work on retrofitting of 70 warehouses - new roof enslosures & roof mounted plant.
Im going through the process of capacity checks on existing purlins - vary from site to site.
I need table of properties for them - much like we would use for normal heavier steel sections.
Im working in Australia but am trying to use Design Spreadsheets I built for design to Eurocode - put cant get the section rpoperties table I need and its a pain in the Arse to calculate them from scratch for different sections and sizes.
Cheers folks
PS Is there any reliable free software package out there for cold formed/light gauge products? Even if its to ASTM, BS, EC or whatever major standard?
Most of what I have built myself is for regular steel (RSJs, Universal BEams, Universal Columns, CHS, RHS, etc)






RE: Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
RE: Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
Good Luck.
RE: Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
divide the section into basic shapes (rectangles, arcs) then
x y A = x*y ybar A*ybar A*yabr^2 Io = x/12*y^3
and yNA = sum(A*ybar)/ sum(A) and I = sum(Io)+sum(A*ybar^2)-sum(A)*yNA^2
plastic properties ... divide the section into two equal areas
RE: Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
Mike is correct is stating that they did full scale test. This is part of the spec in the back of the AISI (section D6 in my AISI) where they have these mysterious R values. I believe these tests were conducted by Fisher but I am not sure.
The other engineer absolutely loves the RSG software and is always trying to get me to use it. He only uses the free version to calculate Se I believe.
RE: Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
RE: Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
http://www.atirsoft.com
You can have 30 days free trial verision with all options with out any restrictions.
RE: Cold formed Z & C sections - table of properties / plastic & Elastic section modulus
http://www.lysaght.com/structural-products
http://www.cadtech.com.au/Products/STRAMIT/PTM_Pur...
I don't see the point of trying to use Eurocode provisions for purlin analysis in Australia. The load tables used here are based not just on calculation, but also on extensive testing.