• L/R Exceeds Failure

    Can anyone enlighten me about this failure? It say failure since L/R Exceeds But removing this member, make the whole framing passed? How in the world can that member affect the whole frame? And why is the first one failed in L/R? Thanks…
  • Cross Bracing Analysis

    Hello, I have an ordinary frame which has some cross bracings in it. The unit is actually to support small HVAC equipment. I have created a basic model to see if my angles will be able to take that load or not. However, I am designing cross bracings…
  • Unbraced Length of Lateral Columns in RAM SS

    How shall we assign the unbraced length of lateral columns in a building with a mix of lateral and gravity columns supporting a flat slab? The building does have shear walls as well as a part of MWFRS. I know for gravity columns, it will be safe to…
  • RE: How to define Lx,Ly & Lz as per IS 800 LSD steel design?

    What if for a member both the parameters - Ky and Ly are used? For ex., A member is having length L = 0.80 m Design parameters assigned to this member are: KY = 0.85 and LY = 1.4 what will be the effective length used for the calculation? I…
  • RE: Effective length

    For analysis, the member stiffness is calculated using the member length between the incident nodes. Effective lengths are used in the design phase for calculation of member strengths.
  • RC Designer

    Hi, 1. In the 3D model columns are tied by beams on both X and Z directions, but at different level. So, I have to define the different length and different length factor for both Y and Z directions of the column. Say, Height & effective length…
  • StaadPro - Effective Length For Compression Chords In Long Trusses

    I have designed a 80m box truss with StaadPro. For the top chords that are in compression, do I need to specify their Lz to be equal to 80m? If I do that, the top chords will fail terribly due to slenderness. Is it a valid assumption to default the Lz…