Load Generation

Important Note – These are descriptions to changes implemented in WoodWorks Shearwalls for version 9.1 and may not reflect current behavior.

1. Windward Roof Pressure for Exposure B, High Roof Slopes (Bug 2106)

   When generating wind loads under the following conditions

   • ASCE 7 All Heights
   • with a roof slope greater than 45 degrees,
   • Exposure B ( built up urban areas )
   • The imposition of minimum wind loads is enabled in the Generate Loads view

   the transverse-to-ridge windward loads and forces were corrupted as follows:

   • The meaningless symbol “-1.$” is shown as the magnitude in plan view and the loads table of the results report.
   • In the plan and elevation graphics view, the shearline force was an unrealistically large negative number.
   • No shear force for the these lines was displayed in the shear results of the results report.

   These problems for this one rather rare case have been corrected.

2. Maximum Period T
   1. Maximum Period T Check (Bug 2130)

      Previously, the program warned you when entering a value of T in the site information box greater than the maximum limit on T given by ASCE Section 12.8.6.2, Tmax = CuTa, but allowed you to enter it anyway. It did not indicate anywhere in the output that this limit had been violated. Now it does not allow you to enter a period greater than Tmax.

   2. Period T Greater than Maximum (Bug 2280)

      When you entered a period T in the Site Dialog that was greater than the maximum given in ASCE 7 12.8.2 , and the program prompted you to accept the maximum instead, it applied the maximum to the North-south direction, but not the East-West Direction. In the East-west direction, the entered period that is greater than the maximum was used, resulting in lower than allowed loads, a non-onservative error.

      This problem has been corrected.

   3. Repeated Maximum Period T Warning (Bug 2302)

      In the Site Information dialog, if during exiting the dialog a message box informs you that a Ta value is greater than the T max value allowed by ASCE-7 and you choose to set this Ta value to the T max, the next time the Site Information dialog is exited with the OK button then the message would appear again even thought the maximum Ta value was applied. This has been corrected.