| Back
Coat |
A coating applied to
the back or unexposed side. Its purpose is to prevent
corrosion of the reverse side. It is closely controlled
for color, gloss and applied dry film thickness. Not to
be confused with a wash coat. |
| Base
Angle |
A continuous angle
secured to foundation to support wall panels.
|
| Base
Plate |
A shop-welded,
pre-punched plate on that portion of a beam or column
which rests on the supporting surface. |
|
Batten |
A broad, formed
strip of metal put over a roof seam for decorative
purposes and to conceal fasteners. |
| Bay
|
The space between
frame center lines or primary supporting members in the
longitudinal direction of the building. Also called
stanchion spacing. |
|
Bay-End |
The distance between
the centerline of the first interior frame to the inside
of the endwall panel. |
|
Bay-Interior |
The distance from
centerline to centerline of two interior columns.
|
| Bead
Mastic |
Sealant furnished in
a continuous roll, normally used for sealing roof panel
laps. |
| Beam
|
A structural member
which is ordinarily subject to bending and is usually a
horizontal member carrying vertical loads. |
|
Bearing Frame Endwall |
Frame composed of
corner columns, end columns, flush girts, and channel
rafter beams, which is designed to carry one-half bay
weight. Also referred to as "light endwall".
|
| Bird
Screen |
Wire mesh used to
prevent birds from entering the building through
ventilators and louvers. |
| Blind
Rivet |
A small headed pin
with expandable shank for joining light gage metal.
Typically used to attach flashing, gutter, etc. also
referred to as Pop Rivet. |
| Brace
Rods |
Rods used primarily
on roof and sidewalls of RF (Rigid Frame) or BC (Beam &
Column) buildings for plumbing the structures and to
transfer wind force to foundation. |
|
Bracket |
A structural support
projecting from a wall or column on which another
structural member is fastened. Example: Crane runway
brackets. |
|
Bridge Crane |
A material handling
system within a building which moves longitudinally on a
runway constructed of rails and beams. |
|
Bridging |
Structural member
used to give weak axis stability to joist or purlins.
|
|
Building Codes |
Published
regulations and ordinances established by a recognized
agency describing design loads, procedures and
construction details for structures. Building codes
control design, construction and quality of materials,
use and occupancy, location and maintenance of buildings
and structures within the city, county, state, etc. for
which the code was adopted. |
|
Built-Up Member or Section |
A structural member,
usually an "I" section, made from individual web, flange
and base plates by welding them together. |
|
Built-Up Roof |
A roof composed of
layered felt or jute, saturated with tar, with each
layer set by mopping of hot tar or asphalt. |
| Butt
Plate (or Splice Plate) |
The prepunched end
plate of a structural member which usually rests against
a matching plate of another member in forming a bolted
connection. |
|
By-Framed Girts |
Girts which overlap
outside column flange to form a continuous member.
|
