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Concrete Column

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This module designs concrete columns that are subject to axial loads and lateral bending loads about both axes.

 

clipP134

 

The module only uses strength design for concrete.

 

All calculations are according to the referenced version of ACI 318 based on the selected governing building code.

 

The screen capture below shows the full screen for concrete column design. See items below for descriptions of items that are specific to the concrete column design module.

 

For general description of the module, end fixity, loads, and load combinations click here. For slenderness description click here.

 

General

The area indicated in the screen capture below is specific to the concrete column selection.

 

clipp136

 

The two buttons clipP613and clipP614immediately set the value for elastic modulus "E" to the values as described on the button.

 

 

Concrete Shape

This tab is specific to the concrete column selection. It allows you to select from 12 different column shapes. Simply click the button surrounding the column shape icon and the screen below will change to allow specific data input for measurements and reinforcing layout.

 

Following the screen capture below we will show ALL the data input areas for ALL the column shapes with descriptions as needed.

 

Note that this module does a very detailed biaxial analysis of the column cross section using exact numerical methods.

 

Circular Column

 

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clipP618

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Square Column

 

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clipP622

clipP623

clipP624

 

 

Rectangular Column

 

clipP625

clipP626

clipP627

 

 

Trapezoidal Column

 

clipP628

clipP629

clipP630

 

 

"L" Shaped Column

 

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clipP632

clipP633

clipP634

 

 

"Z" Shaped Column

 

clipP635

clipP636

clipP637

clipP638

 

Six Sided Column

 

clipP639

clipP640

clipP641

 

 

"T" Shaped Column

 

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clipP643

clipP644

 

 

"I" Shaped Column

 

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clipP646

clipP647

 

Cross Shaped Column

 

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clipP649

clipP650

 

 

Octagon Column

 

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clipP654

clipP655

 

 

Rectangular Tube Column

 

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Results

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Design Results - Load Combination Summary

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Design Results - Load Combination Results

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Note:  The value of Euler Buckling load (Pc) is calculated using the following formula from ACI 318 Section R6.6.4.4.4:  EI = 0.25EcIg.

 

A-M-V-D Results - Strength Design Results

clipP661

 

A-M-V-D Results - Service Load Deflections

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Note:  Deflections are based on Ig.

 

 

P-Mx-My Capacities

clipP663

 

 

Section Properties

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Reactions

clipP665

 

 

2D Sketch

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Diagrams - P-M Diagrams

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Diagrams - A-V-M-D Diagrams

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3D Rendering

CC 3D rendering

 

 

Theoretical Basis

Click here to view Concrete Column Module Theoretical Basis.

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