Masonry Column |
  
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Masonry Column |
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This module designs masonry columns that are subject to axial loads and lateral bending loads about one axis.
The user can select ASD or LRFD methods.
All calculations are according to the ACI 530 or TMS 402, depending upon whether IBC 2015 or IBC 2018 has been selected as the governing building code.
The screen capture below shows the full screen for masonry column design. See items below for descriptions of items that are specific to the masonry 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 shown in the screen capture below is specific to the masonry column selection. You have the choice of using Working Stress or Strength Design methods.
The design method is selected with the toggle shown above in the red bubble. Material properties are collected in the area shown in the blue bubble above.
The column capacity is determined by creating a P-M interaction diagram, so that the effect of compressive force is included in the calculation of allowable moment capacity. For working stress this will result in significantly higher capacities than the older methods that calculated an actual stress ratio using (fa/Fa + fb/Fb).
Column Data
All of the information on this tab is specific to masonry column design.
This tab collects the cross section size, reinforcing, and orientation of the column.
Section definition is made easy by buttons for the common nominal dimensions of a masonry column. Click the Width and Depth buttons and you will see the actual dimension appear in the bottom of the area. Note that "Width" is parallel to the "x-x" axis and "Depth" is parallel to the "y-y" axis.
In the lower right you can specify the bar size and bar count to be used on each face of the column.
The graphic will change accordingly as your input changes.
Results
Design Maximum Combinations
This tab summarizes the maximum stress ratios for each load combination.
A-M-D Results: Strength
This tab presents the very detailed allowable and actual values for each load combination.
A-M-D Results: Service Load Deflections
This tab summarizes the lateral deflections of the column at increments along its height. These values will be nonzero only if lateral loads are applied or the axial load is applied with an eccentricity.
P-M Surface Data
This tab lists the full analysis results for the column.
Reactions
This tab reports axial reactions and lateral reactions.
2D Sketch
A-V-M-D Diagrams
Pn-Mnx Diagram
3D Rendering
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