SmithJ
Structural
- Apr 11, 2003
- 72
Hello All,
I am having an issue at work that I need some input in. The manufacturing company I work for gets it's steel from a number of different sources. Apparently, our 36ksi steel comes in with mill certs from 45 thru 49 ksi. The practice here is to design at the mill cert yield stress, but I remember reading that the design yield stress for steel is the STATED design yield strentgh, not the mill cert test results.
Is this accurate? Am I unduly penalizing the design if I insist on using 36ksi design when the mill cert comes in at 45ksi? Also, if I design using 50ksi steel, but we find a 36ksi beam that comes in at 48ksi, is that an okay substitute? (strength wise it would be okay).
Thanks in advance for your toughts.
I am having an issue at work that I need some input in. The manufacturing company I work for gets it's steel from a number of different sources. Apparently, our 36ksi steel comes in with mill certs from 45 thru 49 ksi. The practice here is to design at the mill cert yield stress, but I remember reading that the design yield stress for steel is the STATED design yield strentgh, not the mill cert test results.
Is this accurate? Am I unduly penalizing the design if I insist on using 36ksi design when the mill cert comes in at 45ksi? Also, if I design using 50ksi steel, but we find a 36ksi beam that comes in at 48ksi, is that an okay substitute? (strength wise it would be okay).
Thanks in advance for your toughts.