2D TRUSS Calculations for Design and Analysis in SAP2000

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D.L= 10K, L.L= 20K, FY = 36KSI, FY=58KSI.

STEPS:

• Unit = K-ft.

• New model 2d truss, sloped truss. Number of division = 3, length (division)=15, Height= 12ft,

• Option>preference > steel frame design, ALSC-LRFD-93.

• Define > material, steel, modify, fy=36 ksi, fy= 58ksi.

• Define > frame section, import angle. Add angles, add auto select insert – all angles.

• Define > load cases, add line load, self xple=0.

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• Define > add default combo, select steel, convert.

• Select all members.

• Assign > frame > frame sections, select autos elect.

• Select joint.

• Assign > join load > forces, apply loads.

• Select all.

• Assign > frame > release > partial fixity.

• Design > steel > steel design combo, UDSR1, UDSR2.

• Design > steel > select design/check.

• Design > steel > verify analysis Vs designed section.

• If members changed, reanalyze structure till no change, then select max x-sections & apply to all membrane & analyze for economy purpose.

• Display > show forces> joint UDSR2. It gives joint reaction.

• Display > show forces/stresses > frame, axial. It gives member forces.