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Design & Analysis of Stairs Using SAP2000

By: Haseeb Jamal / On: Apr 01, 2017 / Design of
 
 
  • WD =50 lb/ft2 , WL= 75 lb/ft2
  • Slab waist = 6”, f’c= 4ksi; fy = 60 ksi

Steps:

  • Unit = lb-ft
  • Model= stair cases
    • Stair type = type2,
    • Right level width= 6”,
    • Storey height = 13”,
    • Stair projected length = 11.25’
    • Opening b/w stairs = 1,
    • width1=5’,
    • width2 =6’
    • Max mash spacing = 1
  • Option>preference> concrete frame design ACI-2003
  • Define> material concrete, modify, f’c =4 ksi, fy=60ksi
  • Define > area section, modify, name= slab6. Thickness= 6”
  • Define > load cases, line load
  • Define > add default combo
  • Select waist slab
  • Select > invert selection
  • Assign > area > local axis, -90°
  • Select All
  • Assign > Area load > uniform assign loads
  • Analysis > analysis option, 3D
  • Analysis > run analysis; model “Do NOT RUN” Run Now
  • Display > show forces > area M11, M22

  • Display > show forces > area AST1, AST2

 

Comments

rogerlagasca Dec 02, 2019

 Wonderful illustrated information. I thank you about that. No doubt it will be very useful for my future projects. Would like to see some other posts on the same subject! cost to install tankless water heater

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