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  • Users: CENAEN
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  1. CENAEN

    ACI 10.11.1- Lateral Analysis

    I wanted to make sure I understand this correctly: For a lateral deflection analysis use service loads; columns/walls Ig=1; beams Ig=0.5. (ACI 10.11.1 commentary) For a frame analysis/design use factored loads; columns/walls Ig=0.7; beams Ig=0.35.If wall cracks with Ig=0.7 rerun with Ig=0.35...
  2. CENAEN

    Curved Roof Diaphragm

    I am currently designing a building with bowstring steel joists for the roof. I have a question regarding the design of the diaphragm in the direction of the curve (i.e. lateral load is along the curve). Is a curved diaphragm stiff enough to resist the lateral loads? I see the bottom chords...
  3. CENAEN

    Wind load for a gable roof on an open structure

    I'm reviewing some shop drawings for wind load compliance and noticed a gray area in ASCE 7-98. I'm curious to know how everyone else would approach this situation. The structure is an open structure with a gable roof. The designer used the MWFRS coeff. for an enclosed, partially enclosed...
  4. CENAEN

    WTP tank design

    Could anyone suggest a book on design of above ground water treament tanks (i.e. lime sludge thickener etc.)? Thanks, Juan

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