Calculation Modules > Columns > Wood Column. Need more? See items below for descriptions of items that are specific to the Wood Column module. For general description of the module, end fixity, loads, and load combinations click here. For slenderness description click here. General Tab. The Design Stresses area bubbled in the screen capture below is unique to the wood column selection. This area enables you to specify the base design values for the wood species and grade of interest.
You can either enter these values manually, or you can click the button to display the Wood Stress Database. Column Data Tab. All of the information on this tab is unique to a wood column. The area bubbled in red is where you specify the column cross section. Use the button to display the built- in database of wood sections (solid- sawn, glulam, and manufactured sections are available). You can also enter the values manually.
The area bubbled in blue provides allowable stress modification factors that you can specify. Please note that CF or CV values are automatically filled in. CF values are determined from the size and stress grade of the member (No. Utility grades have different values). CV values are calculated when a glu- lam section is specified. Simply click the button of the section type and the list on the right will be populated automatically from the appropriate database. Then just click on a section to have its data loaded into the entries in the red area.
Results Tab. This tab provides a summary of the stress ratios, reactions and deflections for the column. Max Axial + Bending Stress Ratio is the governing load combination for the column. Listed is the governing load load combination, the NDS formulas that is used and the location of the maximum stress ratio above the base of the column. Please note maximum stress ratio is what is being reported because it governs the design... Max Shear Stress Ratio will probably never govern for a column design but is presented here with the governing load combination, location and allowable/actual stress values. Lateral Load Reactions and Deflections are the result of applied lateral loads.
Various geometric online-calculation tools for concrete blocks, stairs, and other construction design tasks. More detailed explanations and examples of wood beam design can be found in my text. Disclaimer: This calculator is not intended to be used for the design of actual structures, but only for schematic (preliminary). Estimate Wood Movement. Select the calculation basis as either Relative Humidity OR Moisture. The wood's moisture content will be calculated using the specified relative humidity and an assumed shop temperature of 70. Wood Beam Calculation, free wood beam calculation software downloads. Wood Cut Program; Methuen Mspca Cats; Kari Pro Setup.
Design Maximum Combinations Tab. This tab lists the resulting maximum stress ratios for each load combination. This list is created by examining the detailed list (on the next tab) and determing the governing stress ratios for each load combination. Detailed Results Tab - Stress. This tab lists the detailed results at small increments along the height of the column for each load combination. For consistency, all of the column headings use labels directly from the NDS code. This list scrolls to the right to display more information.
See the successive screen captures below: Scroll a little to the right.. It is important to understand that the deflection values indicated on this tab represent RELATIVE deflections. That is, they represent the distance from the deflected shape of the column to a straight- line chord drawn between the deflected locations of the top and bottom nodes of the column. This has significance when viewing the deflection data for a column that is fixed at the bottom and free to deflect at the top. If lateral loads are applied to this type of cantilevered column, it is reasonable to expect that the free top will deflect laterally. Do not interpret the results on the Service Load Deflections tab as ABSOLUTE deflections. Sketch Tab. Axial- Shear- Moment Diagrams.
This tab provides comprehensive charting capability to view graphs of Axial load, Shear, Moment, and Deflection along the length of the member. Note that the graphs are oriented such that the right end of the graph represents the column base, and the left end of the graph represents the column top. This was done to maximize the scale of the graph based on the screen area available. Pn- Pnx- Mny Diagrams. This tab allows you to see the moment capacities about each axis given a certain allowable axial load.
This is mostly for reference and can be considered a reverse application of the load capacity calculations. In the screen capture below we have selected a 3.
For a 1. 1 kip axial load you can see the moment capacity values, Mnx and Mny.