|
|
|
|
|
The following issues relating to bearing design have been corrected or improved.
Column Lower Support Options (v9 - Change 138)
The choices for lower support for columns have changed from
= Lb
>= 2Lb
to
None,
= Lb
Continuous
The None option has the same effect as currently typing in 0, i.e. that CSA O86 5.5.7.2 is used instead of 5.5.7.3. The resulting bearing capacity is the same as the Continuous option, which is 5.5.7.3/4 with bearing length > 2Lb.
Output of Lower Support Length (v9 - Change 159)
The program now outputs the lower support length, either the numeric value or one of the above options, in the line prefaced by “Support:” in the material specification of the Design Check output.
Column Bearing Length Output for Non-wood Support (v9 - Change 162)
When the selection for support is Non-wood the program n longer shows the Bearing length = column width phrase in the materials specification of the design check report, because in that case there is no bearing design.
Multi-ply Bearing Width in Output and Diagram (v9 - Bug 2746)
When outputting the bearing width used for a multi-ply member to both the Design Check results and the beam diagram, the program showed the width of a single ply of the member if it is less than the user input bearing width. The full width is now shown. This was a reporting problem only and the correct bearing width is used for bearing design.
Name of Bearing at Support End Checkbox (v9 - Bug 2762)
The user interface field that says Bearing at support end has been renamed Bearing where support ends or is highly stressed. This is because CSA O86 5.5.7.6 includes both these conditions. For main members, both the bending stress and the proximity to the end are detected, but that is not possible for supporting members.
Bearing at Support End for Walls (v9 - Bug 2761)
The Bearing where support ends or is highly stressed field in beam view is now enabled for walls. Previously it was always disabled; however, an end joist has KB factor of 1.0, which is conservative compared to the CB factor calculated for other joists. For this reason you should have the ability to specify that the wall is supporting a joist at its end.
Bearing Support for Disabled Database Files (v9 - Change 147)
If all of the database files of a member type have been turned off in database editor, so are not included in the program, the program would crash when that type was selected as a bearing support, or if it was the default type for a bearing support. The program now allows design to proceed, but support bearing will fail.
Length of Bearing Factor KB between 6” and 6.375” (v9 - Bug 2728)
When a known bearing length is specified that is larger than 6" (150mm) but less than 6.375" the KB factor was being applied when it should not. According to O86 Table 5.5.7.6 bearing lengths of 150mm (O86) or larger should have a KB factor of 1.0.