Anchor Bolts
Bolts utilized to secure building components to the foundation. In the
case of primary framing, these bolts are embedded in the foundation and
secured to the column baseplate.
Bay Spacing
The distance between primary framing members measured parallel to the
ridge or eave. Interior bays are measured from center line of frame to
center line of frame.
Building Height
Building height is the eave height which usually is the
distance from the bottom of the main frame column base plate to the top
outer point of the eave strut. Eave height is the distance from the
finished floor to the top
outer point of the eave strut.
Building Length
The distance between the outside flanges of endwall columns
in opposite endwalls is considered the building length is a combination of
several bay lengths.
Building Width
No matter what primary framing system is used, the building
width is defined as the distance from outside of eave strut of one
sidewall to outside of eave strut of the opposite sidewall.
Clear Height
Distance from the finished floor to the bottom of the rafter at the
rafter-to-column connection.
Clear Span
Distance between columns across the width of the buiding.
Cold Formed Section
A structural shape that is formed by bending thin gauge (typically 10-16
ga.) material at ambient temperature. This is typically done on a roll
former.
Column
Vertical support member for primary framing system.
Design Loads
Design loads are the forces the building will be subjected to. Required
design loads must be specified at
time of quotation. Loads are applied in accordance with the latest
building
codes and standards applicable to pre-engineered buildings.
Haunch
The area of increased depth of the
column or rafter member which is designed to account for the higher
bending moments that occur at such places. Typically, this occurs at the
rafter-to-column connection.
Metal Building Systems
Same as Steel Building System. Both terms are used to describe the same product.
Post-and-Beam Endframe
A structural framing system utilized at the endwall which is composed of
corner post, end post and rake beams.
Pre-engineered Building
Terminology previously used to describe Steel Building Systems (Metal Building Systems).
This terminology was used when rigid frames were 'pre-engineered' for a desired load.
Today, Steel Building Systems are custom engineered to meet the size and design loads to meet
the customers needs.
Rafter
A fabricated member, that extends from the haunch
member to the frame ridge. Any beam, in general, used in a primary
frame.
Rod Bracing
Rods are utilized in conjunction with purlins and girts to form a
truss-type bracing system located in both roof and wall planes.
Roof Purlin
A roof secondary member which is secured to frame rafters and supports
the roof covering.
Roof Slope (x:12):
This is the angle of the roof with respect to the
horizontal. The most common roof slopes are 0.5/10 and 1/10.
Any practical roof slope is possible.
Roof System
The exterior roof surface consisting of panels, closures and
attachments.
Sidewall
An exterior wall which is parallel to the ridge and sidewall of the
building.
Three-Plate
A built-up beam section, forming an 'I' shape, that consists of 2
flanges and 1 web. Using three-plate over conventional structural shapes
allows for greater strength at a reduced weight. These sections are
often tapered to optimize performance.
Wall Girt
A horizontal wall secondary member which is secured to columns and
supports the wall covering.
Wall System
The exterior wall surface consisting of panels, closures and
attachments. |
Steel Building Systems - Gossary of Terms