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: |
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