This module designs concrete columns that are subject to axial loads and lateral bending loads about both axes.
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.
The two buttons and immediately 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
Square Column
Rectangular Column
Trapezoidal Column
"L" Shaped Column
"Z" Shaped Column
Six Sided Column
"T" Shaped Column
"I" Shaped Column
Cross Shaped Column
Octagon Column
Rectangular Tube Column
Results
Design Results - Load Combination Summary
Design Results - Load Combination Results
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
A-M-V-D Results - Service Load Deflections
Note: Deflections are based on Ig.
P-Mx-My Capacities
Section Properties
Reactions
2D Sketch
Diagrams - P-M Diagrams
Diagrams - A-V-M-D Diagrams
3D Rendering
Theoretical Basis
Click here to view Concrete Column Module Theoretical Basis.