Predicted crack width (pass/fail against code limit), immediate and time-dependent deflection.
Column dimensions, reinforcement ratio (ρg), number and size of bars, axial load (Pu), moments (Mux, Muy), unbraced length, end conditions.
Slab thickness, span lengths, live and dead loads, concrete and steel properties, support conditions. reinforced concrete design spreadsheet excel free download
"Two-Way Slab Design (Direct Design Method).xls" – follows ACI 318's DDM, including panel moment distribution. 4. Footing Design (Isolated Square or Rectangular) What it does: Sizes the footing based on soil bearing capacity, checks one-way and two-way (punching) shear, designs flexural reinforcement, and checks development length.
Column loads, footing dimensions (trial), soil allowable bearing pressure, concrete cover, rebar details. "Two-Way Slab Design (Direct Design Method)
Required As (area of steel), rebar selection (e.g., 4#25 bars), spacing checks, shear reinforcement spacing.
Introduction: The Digital Shift in Structural Engineering For decades, reinforced concrete design was a domain of hand calculations, slide rules, and thick code books. Engineers spent hours computing bending moments, shear forces, crack widths, and deflection limits—all prone to human error. Then came spreadsheets. Microsoft Excel, with its formula-driven logic and iterative calculation power, became an unexpected hero in structural engineering. age at loading.
"RCC Beam Design.xls" from civil engineering forums – widely used for ACI 318-14. 2. Column Design (Axial + Biaxial Bending) What it does: Designs short or slender columns under combined axial load and bending. Some advanced spreadsheets construct an interaction diagram.
Service moment, reinforcement details, concrete cover, exposure class, age at loading.