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Pile Crack Width Checker

Pile Crack Width Checker

Bundled Bars Support

Select Design Code

1 Data / Inputs

Project Name

Pile ID

Exposure Condition

Exposure Limit

Crack Width Limit

mm

Service Tension, T_aT

kN

Geometry

Diameter, D

mm

Clear Cover, C_c

mm

Reinforcement

Bundled Bars?

No. of Bundles/Bars, N_b

Bar Diameter, d_b

mm

Tie/Link Dia, d_td_s

mm

Steel Modulus, E_s

MPa

Section View

Green/Dark: Main Bars | Red: Ties

2 Calculation Results

Properties

Area (Gross/Concrete)— mm²

Total Steel Area (A_s)— mm²

Rebar Percentage (ρ)— %

Equiv. Dia (d_eq)— mm

d_c (actual)— mm

c/c Spacing (S)— mm

Clear Spacing— mm

Crack Width Check (ACI)

Stress, f_s— MPa

d_{c max} (for calc)— mm

W_cr Calc— mm

Allowable Limit— mm

—

Crack Width Check (BS)

Stress (f_s):– MPa Avg Strain (ε_m):–

Case-1 (w₁): – mm

Case-2 (w₂): – 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

Calculation Report

Crack Width Check For Tension – ACI

Generated on:

Project Details & Inputs
Project
Pile ID
Exposure Limit
Service Tension (Ta)
Diameter (D)
Clear Cover (Cc)
Tie Dia (dt)
Exposure
Reinforcement

1. Section Properties

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

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

[Reinforcement]Rebar Percentage, ρ = (A_s / A_g) · 100

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

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

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

[Geometry]Clear Spacing, S_clear = S – d_eq

2. 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—

—

3. 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

Calculation Report

Pile Crack Width Check (Direct Tension)

Design Code Reference: BS 8110 / BS 8007

Generated on:

Project Details & Inputs
Project
Pile ID
Exposure Limit
Tensile Force ($T$)
Diameter ($D$)
Cover ($C_c$)
Link Dia ($d_s$)
Reinforcement

Calculation Report

End of ReportGenerated by Pile Crack Width Checker