"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.
"Biaxial Column Interaction Diagram.xls" – a classic spreadsheet that solves strain compatibility for any section. 3. Slab Design (One-Way and Two-Way) What it does: Calculates required reinforcement for continuous or simply supported slabs, checks deflection limits, and designs edge or corner reinforcement.
"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. reinforced concrete design spreadsheet excel free download
Column loads, footing dimensions (trial), soil allowable bearing pressure, concrete cover, rebar details.
Slab thickness, span lengths, live and dead loads, concrete and steel properties, support conditions. "Two-Way Slab Design (Direct Design Method)
Interaction diagram points (nominal vs. design capacity), slenderness check, required tie spacing.
Column dimensions, reinforcement ratio (ρg), number and size of bars, axial load (Pu), moments (Mux, Muy), unbraced length, end conditions. "Biaxial Column Interaction Diagram
"Isolated Footing Design.xls (ACI 318-14)" – includes a settlement check option for sandy soils. 5. Crack Width and Deflection Verification What it does: For serviceability limit state (SLS) design. Computes crack widths per code formulas and long-term deflection considering creep and shrinkage.