# Column Construction Calculator — Civil Engineering App

> Civil Engineering App (iPhone/iPad app by V PUGAZHENTHI.)

- Source: https://appshunter.io/ios/app/column-construction-calculator/id1148046540 (this page in markdown: same URL + `.md`)
- Developer: [V PUGAZHENTHI](https://appshunter.io/developer/491898049)
- Category: Education, Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 16.0 · 34 MB
- Languages: Dutch, English, French, German, Italian, Portuguese, Chinese, Spanish
- Released: 2016-09-11
- Data updated: 2026-06-24
- User reviews in markdown: https://appshunter.io/ios/app/column-construction-calculator/id1148046540/reviews.md

## What is Column Construction Calculator?

Column Construction Calculator contains 35 calculators to measure and calculate different column and civil engineering parameters.

NEW — Built-in Reference Library
Look up standard material properties and auto-fill them straight into any calculator:
• Steel — ASTM grades (A36, A992 W-shapes, A572 Grade 50, A500 Grade B & C HSS, A53 Grade B Pipe) with Yield Strength (Fy) and Modulus of Elasticity (E)
• Aluminum — common structural aluminum grades
• Concrete — ACI mix classes from 2500 psi to 10000 psi with compressive strength (f'c), modulus (Ec) and β₁ factor

Available in Metric (SI) and Imperial (USCS) Units

Column Calculator contains the following 35 Calculators:

• Critical Buckling Load - Column Pivoted at Both Ends (Euler's Formula)
• Critical Buckling Load - One End Fixed and Other End Rounded (Euler's Formula)
• Critical Buckling Load - Both Ends Fixed (Euler's Formula)
• Critical Buckling Load - One End Fixed and Other End Free (Euler's Formula)

• Nominal Bearing Strength of Concrete (Column Base Plate Design)
• Area of Base Plate for Factored Load
• Length of Rectangular Base Plate (Wide-Flange Column)
• Width of Base Plate - Parallel to the Flanges

• Projection of Base Plate beyond the Flange and Parallel to the Web (m)
• Projection of Base Plate beyond the Edges of the Flange and Perpendicular to the Web (n)
• Equivalent Cantilever Dimension (n')
• Column Base Plate Design Value (Lambda)
• Column Base Plate Design Value (X)
• Thickness of Base Plate (m)
• Thickness of Base Plate (n)
• Thickness of Base Plate (Lambda n')

• Area of the Column
• Allowable Bearing Pressure on Support (Base Plate occupies Full Area of Support)
• Allowable Bearing Pressure on Support (Base Plate covers less than Full Area of Support)
• Wall Thickness of Steel Pipe (Width of Face of Rectangular Section)
• Wall Thickness of Steel Pipe (Outside Diameter of Circular Section)
• Design Strength of Axially Loaded Composite Column
• Design Strength of Concrete (Direct Bearing)

• Effective Length Factor
• Slenderness Ratio
• Critical Buckling Load
• Elastic Critical Buckling Load

• Allowable Design Load – Aluminum Columns
• Allowable Design Load – Aluminum Columns (Johnson's Equation – Straight Line)
• Allowable Design Load – Aluminum Columns (Johnson's Equation – Squared Parabolic)
• Ultimate Strength of Column - Zero Eccentricity of Load

• Axial Load Capacity – Short Rectangular Members
• Balanced Moment
• Eccentricity – Balanced Condition
• Eccentricity – Slender Columns


## Version history (last 4 releases)

### 3.1 — 2026-06-04

NEW: Built-in material Reference Library (Steel, Aluminum, Concrete) with one-tap auto-fill into any calculator.

### 3.0 — 2023-04-25

- all new interface for better user experience
- updated for iOS 16

### 2.0 — 2019-09-12

Ready for your iPhone X Max 
All new user interface for iPads

### 1.1 — 2016-09-01

This update is signed with Apple’s latest signing certificate. No new features are included.

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All apps by V PUGAZHENTHI: https://appshunter.io/developer/491898049

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*