Description
Transport Saddle (Zick Analysis) Calculation
Engineering Spreadsheet — Instant Download
What This Spreadsheet Does
Analyses stresses in horizontal pressure vessels supported on two saddles using the Zick method (L.P. Zick, 1951) — the methodology adopted by ASME VIII Division 1 as the standard for saddle-supported vessel stress evaluation. Used for operating, hydrotest, and transport load conditions.
What’s Inside the Excel File
- Inputs — vessel OD, length, head type, wall thickness, content density, saddle location and contact angle, load case (operating / hydrotest / transport with G-factors)
- Longitudinal bending stress at mid-span and at saddles per Zick
- Tangential shear stress at saddle
- Circumferential stress at horn of saddle
- Compressive stress at saddle
- Stiffener requirement check
- Wear plate sizing if required
- Utilization ratios against allowable stress
Who This Is For
- Pressure vessel design engineers
- Logistics and transport engineers handling vessel shipping
- EPC mechanical teams on horizontal vessel installations
- Vessel fabricators and saddle designers
Codes & Standards Referenced
- Zick L.P. — “Stresses in Large Horizontal Cylindrical Pressure Vessels on Two Saddle Supports” (1951)
- ASME VIII Division 1 — referenced methodology
How It Works
| 1 | Purchase — secure payment |
| 2 | Download — instant Excel access |
| 3 | Enter Values — vessel and saddle geometry, load case |
| 4 | Get Results — Zick stresses with utilization |
File Format & Compatibility
Microsoft Excel (.xlsx). Opens in Excel 2016+, Excel 365, Google Sheets. No macros, no locked cells.
What You Get After Payment
- ✅ Instant download (also emailed)
- ✅ Lifetime access
- ✅ Engineer email support
- ✅ 7-day refund if file fails to open
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Frequently Asked Questions
Two saddles only?
Standard Zick analysis is two saddles. Three or more supports require different distribution methodology.
Vertical vessels?
Zick is specifically horizontal vessels. For vertical vessel supports (skirt, leg, lug), see our pressure vessel workbook.
Custom version needed?
Request a custom quote.
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