Loads and Load Analysis

Important Note – These are descriptions to changes implemented in WoodWorks Sizer for version 10.1 and may not reflect current program behaviour.

1. Maximum Shear in the Span of Member Warning (Bug 2172)

   In the case where a beam is designed where the maximum shear value is in the span of the member rather than at a support, the following warning message appeared upon beam design:

   Warning: the maximum shear value is in the span of the member rather than at a support. This can occur when opposing loads are applied in the same span. WoodWorks cannot correctly design for this situation. Please refer to shear diagram

   In the analysis diagram for shear, the diagram had the following note:

   "Design shear < maximum due to notching or loads ignored within distance "d" of supports without notches".,

   which contradicts the warning message.

   The max shear in span is now detected and used as the design shear value. The warning no longer appears.

   The load duration factor K_D calculated using 5.3.2.3 uses the effect of long-term and standard term loads calculated at the nearest support.

2. Precise Load Location Start Point in Input (Change 11)

   In Load Input view, Location from left has been modified to be

   Location from edge of left support,

   Location from left end or

   Location from left bearing point

   for clear span, full span, and design span respectively. These designate where the load is measured from; support point, end of joist/beam or inner edge of support.

3. Unfactored Axial Reactions in Column Output (Custom Change 16)

   The program now includes unfactored axial reactions for each load type in the Reactions table of Column Mode, whereas previously only lateral reactions were shown. The table has been renamed Reactions from Lateral reactions for this reason.

   These reactions are helpful when using them as loads to be applied to a supporting member for combination with other loads on that member.

4. Update of Pattern Load Checkbox for Low-angle Roof Joists (Bug 3179)

   The program now applies patterning to existing loads when the slope is changed so it is less than or equal to 15 degrees and removes it when it is changed to be greater than 15, to comply with NBC 4.1.6.3.

   This is especially significant for default loads, which are originally created assuming 0 slope, when the slope changes to be greater than 15 degrees.

5. Shift of Partial Loads for Design Span Input (Change 84)

   Adding a new load in load view would sometimes cause the start and end of loads entered using Design span to shift slightly. The offset dimensions would revert to their correct values before design, so this was a display issue only, and has been corrected

6. Column Point of Interest Moment Output (Change 80)

   The bending moment shown in the Analysis results and in the Analysis diagram for column points of interest were showing the bending moment for the critical load combination rather than the one being listed or shown.