Two-Way RCC Slab Design Calculator as per ACI 318M

Designing a two-way slab just got easier! This free online Two-Way Slab Design Calculator helps civil engineers and students calculate slab thickness, effective depth, reinforcement (As), bar spacing, and more based on practice. Input your slab dimensions, loads, material properties, and coefficients. and get instant, step-by-step design results including reinforcement requirements and spacing limits (min. 75 mm to max. 300 mm). Simplify your structural design workflow with this accurate and user-friendly tool.

For Coefficients, please refer to tables 3 & 4 in my post “https://knowledgesharingplatform.com/designing-procedure-of-slab-through-moment-coefficient-method”

Two-Way Slab Design Calculator

Longer Dimension (Ly) in m Shorter Dimension (Lx) in m Thickness of slab (h) in mm Finishes load in kN/m² Live load in kN/m² Concrete strength (f’c) in MPa Yield strength of steel (fy) in MPa Concrete density (γ) in kN/m³ Slab Cover in mm Positive Slab Coeff. Shorter Dir. Dead Load (CX(DL)) Positive Slab Coeff. Shorter Dir. Live Load (CX(LL)) Positive Slab Coeff. Longer Dir. Dead Load (CY(DL)) Positive Slab Coeff. Longer Dir. Live Load (CY(LL)) Negative Slab Coeff. Shorter Dir. (CX(DL+LL)) Negative Slab Coeff. Longer Dir. (CY(DL+LL)) Bar Diameter – Bottom Shorter Dir. (Db1) in mm Bar Diameter – Bottom Longer Dir. (Db2) in mm Bar Diameter – Top Shorter Dir. (Db3) in mm Bar Diameter – Top Longer Dir. (Db4) in mm

Check out these related resources to dive deeper into RCC slab design.

Two-Way RCC Slab Design Calculator as per ACI 318M

Two-Way Slab Design Calculator

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