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Design & Analysis of Slab in SAP2000

By: Haseeb Jamal / On: Apr 26, 2017 / SAP2000, Design of
 
 

Video on Good PaintsDownload Videos on How to design a Flat Slab | One Way Slab | Two Way Slab in SAP2000

  • WD = 50 LB/ft, WL = 60 lb/ft,
  • F’C = 4 ksi, Fy = 60 ksi,
  • hf = 6", B15 x 12

Steps:

  • Unit kft-F
  • New model = grid
    • X = 7, Y = 2, Z = 1; spacing
    • X = 10,
    • Y = 25
  • Option >
    • Preference
    • Concrete ACI-2003

Video on Good PaintsDownload Videos on How to design a Flat Slab | One Way Slab | Two Way Slab in SAP2000

Define:

  • Define > Material,
    • Concrete, modify.
    • Fy = fys = 60ksi,
    • f’c = 4ksi
  • Define > frame section.
    • Add rectangular, name B15 * 12. Reinforcement,
    • Beam clear cover top = bottom = 2.5”
    • Name = slab
  • Define > Area sections,
    • Asec 1 modify,
    • thickness bending = membrane = 6”.
  • Define > load cases, add live load.
  • Define > add default combo check concrete,
    • Convert to user check boxes.
  • Draw > quick draw area, draw the area.
  • Draw > quick draw frame draw beam, B15 x 12
  • Select edge paints at both ends

Flat Slab

Arrow

Assign

  • Assign > joint restrained, hinge support.
  • Select beams
  • Assign > frame > insertion point, select slab
  • Select slab
  • Assign > area load
    • Uniformly Distributed Load
  • Analyze > set analysis uses,
    • Select Slab
  • Analyze > run analysis model,
    • Do No run
    • Run now
  • Unit K-is

One Way Slab

Arrow

Display:

  • Display > deformed shape,
    • Select UDCON2
    • Drag the mouse over the slab & find max deflation
  • Display > show forces stresses
    • Area UDCON2
    • Design steel,
    • Bottom face,
    • Area/ Select max value
  • Display > show forces stresses
    • Area Ast 2
    • Select max value
  • Display > show forces stresses
    • Area too face
    • Select max value
  • Display > show forces stresses
    • Area Ast 1
  • Display > concrete frame design
    • Select design combo
    • Select UDCON1, UDCON2

Two Way Slab

Arrow

Design:

  • Design > concrete frame design
    • Start design/checks
  • Design > Concrete frame design
    • Verify all members passed
  • All members should pass otherwise increase beam size to pass
  • Design > concrete frame design > display design/np Select longitudinal reinforcement
  • For beam, for both upper and lower face, select max value & for column select max value and calculate No. of bars
 
Let us know in the comments what you think about the concepts in this article!

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