TWO-WAY RESTRAINED SLAB DESIGN REPORT

Limit State Method Verification & Reinforcement Calculator

1. Design Input Parameters
Parameter Specification Variable Nomenclature Data Entry
Clear Short Span Distance lx (m)
Clear Long Span Distance ly (m)
Supporting Beam Width bw (mm)
Trial Slab Overall Thickness D (mm)
Superimposed Imposed / Live Load LL (kN/m²)
Superimposed Floor Finish Load FF (kN/m²)
Concrete Compressive Cube Strength fck (N/mm²)
Steel Characteristic Yield Strength fy (N/mm²)
2. Mechanical Loads & Analytical Span Controls
Calculation Step Governing Excel Formula Resultant Output
Panel Aspect Check Ratio r = ly / lx
Effective Short Span Value Lx = min(lx + dx, lx + bw)
Effective Long Span Value Ly = min(ly + dy, ly + bw)
Slab Structural Self-Weight wdl = (D / 1000) × 25.0
Factored Design Ultimate Load wu = 1.5 × (wdl + LL + FF)
Bending Stress Depth Verification dreq = √[Mu,max / (Ru,lim × b)]
3. Flexural Moment Distribution & Main Steel Schedule
Structural Boundary Condition Coeff (α) Moment Mu Ast Needed Bar Detailing (8mm)
Short Span: Continuous Support Edge
Short Span: Mid-Span Core
Long Span: Continuous Support Edge
Long Span: Mid-Span Core
4. Secondary & Corner Torsional Detailing Rule Matrix
Torsion Corner Mesh Reinforcement Required grid mesh structural configuration value layout over corner panels:
• Minimum directional coverage area size footprint: m × m (Lx / 5)
• Structural reinforcement detailing assignment: