Design & Beam Analysis using SAP2000

Watch Videos on How to design a 2D - 3 Span Beam | 2 Span Beam | Beam in SAP2000

• WD = 20 K/ft, WL = 60 k/ft, Fy = 60 Ksi, fi’ = 4 ksi.

Steps:

• Unit = Kft-f

• New model = Beam,
  • span = 2.
  • Modify x1 =0,
  • x2=20,
  • x3 = 45.

• Option > Preference
  • concrete code = ACI 2003.

Watch Videos on How to design a 2D - 3 Span Beam | 2 Span Beam | Beam in SAP2000

Define:

Define > Material Create, Modify fy = fys = 60 Ksi, fi’ = 4 ks

• Define > Frame sections.
  • Add rectangular section.
  • Name = B 15 * 12,
  • Depth = 15m,
  • width = 12” Reinforcement, click Beam bottom.
  • Clear cover top = Bottom = 2.5”

• Define> load cases, add live load.

• Define > add default combo. Check concrete & convert to user editable boxes.

• Select beams

Assign:

Assign > frame

• Frame section,
• select B15* 12.
• Select> get previous select.

• Assign > frame load
  • Distributed.
  • Load cases = dead,
  • Load = 0.02.
• Select > get previous select

• Assign > frame load
  • Distributed.
  • Load case = live,
  • Load= 0.0 6
• Analyze > analysis case. x-z plane

• Save model.

Analysis:

Analyze > Run analysis.

• • Select model,
  • Click do not run,
  • Click “Run”.

• Design > deformed shape, select DCON2.

• Display > show forces/stress.
  • Select UDCON2,
  • select F22, it gives such values.
  • Uncheck fill,
  • check show values.

• Display > show forces/stresses,
  • select m³3. It gives banding moment values.

• By clicking right button of mouse on any member, a window opens showing full details of shear, moment & deflation of that member.

• Display >show forces/stress
  • Joints.
  • Select UDCON2, this gives Joint reaction.