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Important Note – These are descriptions to changes implemented in WoodWorks Shearwalls for version 9 and may not reflect current behavior.
If one or more materials in the table are disqualified and shear capacity set to zero due to seismic design category restrictions described in , a Note 4 appears below the table, and the number 4 appears in the Apply notes column to the table. The SDPWS design clause is given for each material in the table that is disallowed. This note appears only if there are seismic loads on the structure.
The effect of the design settings “Ignore non-wood panel contribution…” , “for all walls” and “when combined with structural wood panels”, is now indicated in notes under the Sheathing Materials table. If the capacity of a sheathing side for a wall group is set to zero for this reason, then the program places a note number in the Apply Notes for that material, referring to the note below the table.
If notes 1, 2 and 3 all pertained to a particular sheathing side, occasionally note 2, referring to special nailing requirements for certain panels from SDPES 4.7.1.4, and previously IBC Table 2306.4.1 Note b, would not appear below the table. This has been fixed.
Under the Seismic Information table, in a new section called Seismic Zone Restrictions, a note gives the materials that have been disqualified due to seismic zone restrictions and directs you to the Sheathing Materials table for the specific wall groups. Previously a more general note appeared immediately below the table.
When the design settings "Ignore non-wood panel contribution when combined with structural wood panels for seismic" was set then the warning below the Seismic Information table regarding seismi c zone restrictions could be output when it shouldn't have been. This has been corrected.
The note explaining the derivation of the vertical earthquake load no longer appears immediately below the table; instead it is in a separate section called Vertical Earthquke Load Ev. It was causing some confusion in that it did not refer to anything in the table.
The “Reliability Factor” in the Seismic Information table has been renamed “Redundancy Factor”, to accord with the terminology in the ASCE 7, rather than the obsolete UBC code.
At the top of each table, and at the top of each page of results for each table, the design case is now given in brackets, e.g. (rigid wind design). Previously this just appeared at the top of new pages in the Shear Results table.
The abbreviation ASD has been added to forces such as shearline forces v and hold-down forces, to emphasize that these forces have been factored for allowable strength design, and to distinguish from forces used for deflection analysis, which uses strength-level forces. It has also been added to the Design Settings table when referring to load combination factors.
In the Shear results table for wind design, the Load Case column that once showed the critical low-rise load corner and transverse vs longitudinal load case, has been removed to make room for fiberboard height-to-width factor. The load case information is available in the Log File.
For walls with one shearwall on multi-story shearlines, or on single-story shearlines when there were also non-shearwalls, the program was outputting a dash (-) instead of the vmax value for that wall. This has been corrected and the vmax value is shown.
If any of the wall groups listed in the table do not have shear resistance on at least one side due to seismic zone restrictions, a new note under the Seismic Shear Results table informs you that shear capacity is zero, and directs you to Sheathing Materials table to find out which were the offending groups.
If the contribution to shear capacity has been ignored due to the Ignore non-wood-panel contribution… settings, then a note now appears under the shear results table, referring you to the Sheathing Materials table to find out which wall groups were affected. .
The program was reporting a nail withdrawal capacity for gypsum sheathing, when it should have considered this material one with no capacity for wind C&C design.
When a material such as gypsum wallboard that has no sheathing capacity was used on an exterior surface, the program was outputting a warning note saying it failed the withdrawal capacity check, and another saying that the material on the exterior has no shear capacity. Only the second note, about no shear capacity, is output now.
The following legends have been broken into separate lines for each item for enhanced readability:
The following legends have been improved:
A blank line has been inserted between the legend and the notes for all tables, for better readability.
Any warning message indicating design failure in any way is now in red type. For example nail withdrawal design warnings
The program now automatically closes the log file when a document is closed. Previously the log file remained open even if Shearwalls was exited. This occasionally caused program crashes when a log file remained open for a file that was then reopened.