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My structural engineery man tells me that 1920/30's structural steel is around 123 N/mm2. Compared to S275/S355 this seems low, is this a generic worst case figure used, or is it fairly accurate? Al?
So low strength, and no doubt not such a good brew when they made it, does this make it brittle, or does it approach elastic/plastic deformation limit quicker?
We're approching the limit on some existing steelwork by hanging lots of shiny new strong stuff off it. I have no reason to doubt my man, just you know how conservative these fellas can be
And why did they have tapered flanges? Nightmare.
So low strength, and no doubt not such a good brew when they made it, does this make it brittle, or does it approach elastic/plastic deformation limit quicker?
We're approching the limit on some existing steelwork by hanging lots of shiny new strong stuff off it. I have no reason to doubt my man, just you know how conservative these fellas can be
And why did they have tapered flanges? Nightmare.