Application Load Tab

Loads in addition to the application loads may be specified in the uniform loads, point loads, and tapered loads screens. These additional loads may be confined to portions of the member, if desired.

Note that the load units are pounds per square foot. Thus the actual load on the truss will be determined by the member spacing defined on the Design Tab, as well.

See the concentrated loads topic for more information on that entry. See the Roaming Loads topic for more information.

Minimum application load inputs:

• I-joist, beam: 

  • 10 psf live, 12 psf dead.

• Open-web

  • Floor: 40 psf live, 12 psf dead.

  • Roof: 12 psf live, 12 psf dead.

Occupancy or Use

The options in the "Occupancy or Use" dropdown list correspond to entries in the tables of distributed live loads given in the building codes. Other typical loads are included, though these are not specified in the code. When a selection is made, the live and partition loads are populated per the code table. Dead load is not specified by code -- a default value is assumed.

The options available in the dropdown list depend on the selection of floor vs. roof on the Member Tab. Only floor loads are available for floor joists, etc.

All values of live, dead, and partition may be edited. Any subsequent selection from the dropdown list, however, will overwrite the values.