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ILYAS

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ILYAS last won the day on December 6 2017

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About ILYAS

  • Rank
    Lieutenant

Profile Information

  • Gender
    Male
  • Location
    LAHORE
  • University
    UET LAHORE
  • Employer
    NOOR DURRANI ASSOCIATES
  • Interests
    STRUCTURAL DESIGN
  1. Shoring works

    if anyone need helps in any kind of shoring works( soil nail wall,secant piles,contigous piles,strutting action,cantilever piles,anchor design,top down construction etc).please tell me so we can discuss here.
  2. TUNNEL DESIGN

    plaxis 2D can be used but it it is very costly
  3. moment of inertia in shear walls

    see the detail in ACI CODE and books as well
  4. RC Embedded Columns

    model the column
  5. machine foundation (ACI351.2-10,ACI351.3-04). and for floor vibration ISO 2372
  6. FOUNDATION DESIGN IN SAFE

    why 3D ? WHY NOT 2D?
  7. justified and reasonable practice as explained above the concept of equilibrium torsion
  8. FOUNDATION DESIGN IN SAFE

    anaylsis of raft should be run with option 3D OR 2D?
  9. FOUNDATION DESIGN IN SAFE

    anaylsis of raft should be run with option 3D OR 2D?
  10. Shear Wall vs Column

    ACI 318-14 (page 43) defines a wall: vertical element designed to resist axial load,lateral load or both,with horizontal length to thickness ratio greater then 3.
  11. Shear Wall vs Column

    length to thickness is greater then 3 so treat as wall
  12. Shear capacity of Column

    factored shear force is determined from free body diagram obtained by cutting through the column ends,with end moments assumed equal to the nominal moments strengths
  13. PUNCHING SHEAR IN SAFE 16

    REPLY FROM CSI Ilyas, Regarding your questions: 1, 2 and 3- Results are not expected to be the same, in general, ETABS is based on 3D analysis of the building while SAFE is based on a single story. If you uncheck thick plate in SAFE slab property it is similar to shell thin in ETABS in which slab shear deformation is not accounted for in both programs. This is also depending on ETABS--->SAFE export option you are using, load cases involved, meshing, rigid zone over columns etc. 4- Please make sure to run latest version of SAFE 2016 v16.0.1 5- Concrete strength does not matter for stiff element property as program does not design stiff elements. Program magnify their bending stiffness by a factor of 100 to model the rigidity of the interface. Regards, Mohamad ____________________________ Mohamad Ali-Ahmad CSI Technical Support Computers & Structures, Inc. TECHNOLOGY FOR A BETTER WORLD 1646 N. California Blvd. Suite 600 Walnut Creek, CA 94596 – USA Main (510) 649-2200 Fax (510) 649-2299 support@csiamerica.com www.csiamerica.com
  14. PUNCHING SHEAR IN SAFE 16

    i am not refering to that case my cracking analysis option is off in SAFE, i have already done that my input is same by assuming different cases.
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