1 Data / Inputs

Exposure Condition

Crack Width Limit

Service Tension, T_a

Geometry

Diameter, D

Clear Cover, C_c

Reinforcement

Bundled Bars?

No. of Bundles/Bars, N_b

Bar Diameter, d_b

Tie Diameter, d_t

Section View

Green: Main Bars | Red: Ties

2 Calculation Results

Properties

A_g (Gross Area)— mm²

Total A_s— mm²

Equiv. Dia (d_eq)— mm

d_c (actual)— mm

Spacing (S)— mm

Crack Width Check

Stress, f_s— MPa

d_{c max} (for calc)— mm

W_cr Calc— mm

Allowable Limit— mm

—

Stress Limits (ACI 224R)

Max Stress (Bar Size)	— MPa	—
Max Stress (Spacing)	— MPa	—

ACI 224R-01 Table 4.2 (Bar Limit)

Size	MPa

ACI 224R-01 Table 4.3 (Spacing Limit)

Spacing	MPa

Crack Width Check For Tension – ACI

Generated on:

1. Design Inputs

Pile Diameter (D)		Clear Cover (Cc)
Bundled Bars		Service Tension (Ta)
No. of Bundles/Bars, Nb		Main Bar (db)
Tie Diameter (dt)		Exposure
Crack Limit

2. Section Properties

[Geometry]Gross Area, A_g = π · D² / 4

[Reinforcement]Total Steel Area, A_s = N_b · (Bundles · π · d_b² / 4)

[ACI 318]Equivalent Diameter, d_eq = d_b · √Bundles

[Concrete Cover]Dist. to Centroid, d_c = C_c + d_t + d_eq/2

[Geometry]Bar Spacing, S = (π · (D – 2d_c)) / N_b

3. Crack Width Calculation

[Service Load]Steel Stress, f_s = T_a / A_s

[ACI 224R-01]Cover Parameter, d_{c_max} = min(C_c, 50) + d_t + d_eq/2

[Gergely-Lutz Mod]W_cr = 0.00002 · f_s · d_{c_max} · √(1 + S / (4 · d_{c_max}))

CALCULATED WIDTH—

≤

ALLOWABLE LIMIT—

—

4. Stress Checks (ACI 224R-01)

Check Description	Reference	Limit	Actual f_s	Status
Max Stress vs Bar Diameter	Table 4.2
Max Stress vs Spacing	Table 4.3

End of ReportGenerated by Pile Crack Width Checker