Version 9

This set of topics describes the features that have been added to WoodWorks® Shearwalls for the USA version 9, released in October, 2010:

• Shearwall deflection analysis according to SDPWS 4.3.2 and C4.3.2, using the 4-term equation in C4.3.2. Includes rigidity derived from deflection, force distribution by equalising deflections on line, and story drift check.
• A hold-down connection database and hold-down design
• Iterative shearwall design (Shearwall Design Iterations, http://www.), using initial iteration to calculate rigidities for final design.
• The 2008 version of the AWC Special Design Provisions for Wind and Seismic (SDPWS 2008), replacing the 2005 version
• The 2009 version of the ICC International Building Code (IBC 2009), replacing the 2006 version
• Supplement 2 to the ASCE 7-05.
• A number of smaller improvements and fixes.

The following fixes involve non-conservative and/or possibly large discrepancies in engineering calculations in certain circumstances; please check existing projects to see if they may have been affected: Bugs 2187, 2189, 2190, 2192, and 2193.