Design Settings
Structural Calculation Report
Step 1: Footing Plan Geometry
Working Load from Column (P)P_u / 1.5---
Total Base Load (Incl. 10% Overburden)P × 1.10---
Minimum Required AreaP_total / SBC---
Calculated Square Side Width√Area---
Rounded Side Provided (Bf)Manual Round Up---
Step 2: Ultimate Soil Pressure
Net Factored Upward Pressure (qu)P_u / (B_f^2)---
Step 3: Flexural Bending & Balanced Depth Check
Critical Section Cantilever Projection(B_f - D_col) / 2---
Ultimate Bending Moment (Mu)q_u × B_f × proj^2 / 2---
Required Min Balanced Depth (dbal)√(M_u / (R_lim × B_f))---
Effective Structural Depth Provided (d)D_f - CC - dia/2---
Step 4: One-Way Shear Analysis (Beam Shear)
Critical Shear Zone Distanceprojection - d---
Factored One-Way Shear Force (Vu1)q_u × B_f × L_shear---
Nominal Shear Stress (Ï„v)V_u1 / (B_f × d)---
Permissible Concrete Capacity (Ï„c baseline)IS Table 19 approx---
Step 5: Two-Way Shear Analysis (Punching)
Critical Perimeter Dimensions(B+d) × (D+d)---
Punching Shear Perimeter (b0)2 × (b1 + d1)---
Factored Punching Shear (Vu2)P_u - [q_u × Area_critical]---
Punching Shear Stress (Ï„v2)V_u2 / (b_0 × d)---
Permissible Punching Stress (Ï„c2)0.25 × √f_ck---
Step 6: Tension Reinforcement Output
Calculated Steel Area Required (Ast)IS 456 Yield Formula---
Total Number of Bars RequiredA_st / Area_bar---
Calculated Symmetrical Mesh Spacing(B_f - 2×CC) / (Bars-1)---
Final Footing Design Summary
Footing Outer DimensionsPlan Sizing Layout---
Total Thickness (Df)Gross Height---
Specified Clear CoverDurability Boundary---
Reinforcement Mesh ConfigurationSymmetrical Both Ways---
full-width
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