• Is UNB/UNT/UNL linked to effective length factors Ky and Kz in STAADPRO?

    Hi all, I was wondering if anyone could provide some clarity on the use of UNL (UNB/UNT) in the case of cantilever members. What I know so far is that Ky and Kz would have some typical factor of 2 or 2.1 for cantilever members, and this impacts the…
  • RAM SS (v15.04): Unbraced lengths for a composite backspan beam

    I'm using RAMSS (v15.04) to design the backspan of a small extension type cantilever (see snip) with the "use inflection point" and "perpendicular deck bracing the top flange" settings turned on. The backspan beam is being designed as a composite beam…
  • Are columns in a multi storey( a simple G+5 structure braced or unbraced? I feel that it shoudl be unbraced as there are no such wind resisting elements to specify the columns as braced. Pls offer you comments on this sir.

    Are columns in a multi-storey ( a simple G+5 structure with a portal frame design) braced or unbraced? I feel that it should be unbraced as there is no such wind resisting elements to specify the columns as braced. Pls, offer your comments on this sir…
  • Staad beam bracing

    I'm trying to understand the different scenarios in Staad for beam bracing. Non-Physical Member (not sure what to call this) I understand by default the program considers the length of member (node to node) as the unbraces length. So for a girder…
  • Ly and Lz for single beam divided by intermediate members.

    Hello, I have a model in which there is a beam divided in 3 parts because of intermediary steel members (32, 73, 78). As this beam is only restricted laterally and not vertically I gave length (Ly) in vertical direction as combined length of the beam…
  • Unbraced length of physical members

    Is there an easy/quick way to set the unbraced length (LZ) of all members in a model to the length of the physical member they're a part of? I have over 10,000 physical members alone, so it is incredibly time consuming to check the length of each one…
  • RE: RAM FRAME Change unbraced length of brace member

    Are you using an old version or design code? You can assign brace unbraced length in Ram Frame - Steel mode - using Assign - Braces - Unbraced Length... for most codes.
  • RAM SS Unbraced Length for Non-composite Beams

    I have a situation where I do not want RAM to use the non-composite deck to brace the beam. The deck I am applying is mimicking light gage trusses for load distribution purposes only. I can't find a general button or toggle that will allow this is happen…