the Guide - VP Buildings

Varco Pruden Buildings Systems Guide
Load Definition Summary
Dead - Permanent load due to the weight of the metal building
system itself including the roof panels, insulation, purlins, and
primary frames.
Collateral - Additional dead loads, other than the weight of the
building system itself, such as sprinklers, mechanical and
electrical systems and ceilings. Collateral loads may be either
uniformly distributed or concentrated loads and may not
always be located in the same place during the lifetime of the
structure.
Roof Live - Temporarily applied roof loads, typically (but not
always) erection load or an unspecified minimum live load as
required by the governing building code. This would be a
uniform load over the entire roof area.
Alternate Span Live - Temporarily applied roof loads to
adjacent or alternate spans of a continuous beam (i.e. rafter
loading between interior columns). This type of loading
condition could occur during erection of a building.
Snow - The load induced by the weight of snow on the
structure. Unbalanced Snow- Removing one slope live load of a
gable roof, and leaving load on the other side.
Wind - The pressure and suctions on wall and roof areas caused
by wind velocities acting in any direction.
Seismic - The horizontal and vertical force acting on a structural
system due to the action of an earthquake.
Floor Live - Temporarily applied loads on a floor such as people,
furniture, machines, etc.
Floor Dead - Permanent loads due to the weight of the
structure including framing, decking and flooring materials.
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