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  1. rather_be_riding

    BS/ISO 20332 2018 revision to equation 67

    Hi all, I'm working to Australian Standard AS 5224 which is based upon ISO 20332. I'd like to check the originating standard's version of equation 67 but don't have access to a copy of the 2018 version which has a modification to that equation. Further to that, if anyone can point me in the...
  2. rather_be_riding

    LTBeamN 'sections are not compatible'

    I'm trying to do an LTBeamN buckling check of a stacked column arrangement and I've got this error. Does anyone know what it means - I can't make head nor tail of the French manual to try and sort it out. Sections are property specified: h: 280 A: 5726.2 Iy: 3.78E+7 Iz: 3.78E+7 It: 3.784E+7...
  3. rather_be_riding

    AS 4100 5.14.5

    Does anyone know if the d term of the equation given in 5.14.5 to refers to the beam depth or the critical flange width? Furthermore, it seems counter-intuitive to me that as you increase the slenderness ratio of the stiffener, alpha-t approaches zero and therefore the requirement for the Is...
  4. rather_be_riding

    Residual fatigue life assessment of structure with unknown loading history

    Someone floated a project the other day which involved refurbishing a used item of plant for a customer who has no loading history for it. The plant structure can be considered to be fatigue sensitive and some anecdotal evidence suggests that maybe at some point someone was actually concerned...
  5. rather_be_riding

    AS 3990 Clause 4.3, AS 4100 Clause 5.2.5 and non-uniform compression plates

    Clause 4.3 doesn't specifically provide a slenderness limit for edge supported plates under non-uniform tension or compression. For example, a web with compression at one edge and tension at the other. Similarly, AS 4100 specifies slenderness limits for such a case but doesn't provide a...

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