AS 1664.1 Aluminium Limit State Design, finding Rb/t
AS 1664.1 Aluminium Limit State Design, finding Rb/t
(OP)
Hi
I am calculating the ultimate limit state of a aluminium section using AS1644.1 clause 3.4.13. I need to find Rb/t with Rb = mid-thickness radius of curvature of curved plate and tubular beam elements and t = thickness. Below is the section I need to calculate.
[img
]
For this image, Rb/t = (175-1-1)/2.
However I need to calculate it for a section at a 45 degree angle (image below)

What now become Rb and t? Is Rb 126 or 48, is t 2 or 2.7.
Thanks in advanced
I am calculating the ultimate limit state of a aluminium section using AS1644.1 clause 3.4.13. I need to find Rb/t with Rb = mid-thickness radius of curvature of curved plate and tubular beam elements and t = thickness. Below is the section I need to calculate.
[img
]For this image, Rb/t = (175-1-1)/2.
However I need to calculate it for a section at a 45 degree angle (image below)

What now become Rb and t? Is Rb 126 or 48, is t 2 or 2.7.
Thanks in advanced






RE: AS 1664.1 Aluminium Limit State Design, finding Rb/t