Metal building terms and definitions – Mueller Pre-Fab User Manual
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MeTal bUIlDInG TeRMs anD DefInITIons
force:
The action of one body on another body
that changes or tends to change its state of rest
or motion . A force may be expressed in pounds
(Newtons), kips, or other similar units and may act in
any one of the following ways:
A . Compression force: A force acting on a body
tending to compress the body, (Pushing
action) .
B . Shear force: A force acting on a body that
tends to slide one portion of the body against
the other portion of the body . (Sliding action) .
C . Tension force: A force acting on a body
tending to elongate the body . (Sliding action) .
D . Torsion force: A force acting on a body that
tends to twist the body .
foundation:
The substructure that supports a
building or other structure .
framed opening:
Frame work (headers and
jambs) and flashing which surround an opening in
the wall or roof of a building; usually for field-installed
accessories such as overhead doors or powered
roof exhausters .
framing:
The primary and secondary structural
members (columns, rafters, girts, purlins, brace rods,
etc .) that go together to make up the skeleton of a
structure to which the covering can be applied .
framing Drawings:
Plans and erection
instructions which identify all individual parts in
sufficient detail to permit the proper erection and
installation of all parts of the metal building
system furnished by the seller (also known as
Erection Drawings) .
Gable:
A triangular portion of the endwall of a
building directly under the sloping roof and above the
eave line .
Gable Roof:
A ridged roof that terminates in gables .
Galvanized:
Coated with zinc for
corrosion resistance .
Girder:
A main horizontal or near-horizontal
structural member that supports vertical loads . It
may consist of several pieces .
Girt:
A secondary horizontal structural member
attached to sidewall or endwall columns to which
wall covering is attached and supported horizontally .
Glaze or Glazing:
The process of installing glass
in windows and doors .
Grade:
The term used when referring to the ground
elevation around a building .
Grade beam:
A concrete beam around the
perimeter of a building carrying an exterior wall .
Grout:
A mixture of cement, sand, and water
used to fill cracks and cavities . It is often used under
base plates or leveling plates to obtain uniform
bearing surfaces .
Gutter:
A channel member installed at the eave of
the roof for the purpose of carrying water from the
roof to the drains or downspouts .
Gusset Plate:
A steel plate used to reinforce or
connect structural elements .
“H” section:
A steel member with an “H”
cross-section .
Haunch:
The deepened portion of a column
or rafter, designed to accommodate the higher
bending moments at such points . (Usually occurs at
connection of column and rafter .)
Header:
A horizontal framing structural member
over a door, window or other framed opening .
High strength bolts:
Any bolt made from steel
having a tensile strength in excess of 100,000 lbs .
per square inch . Some examples are ASTM A-325
and A-490 .
Hinged base:
See “Pin Connection”.
Hip Roof:
A roof that rises by inclined planes from all
four sides of a building . The line where two adjacent
sloping sides of a roof meet is called the Hip .
Hoist:
A mechanical lifting device usually attached
to a trolley that travels along a bridge, monorail, or jib
crane . May be chain or electric operated .
Hood (Door):
The metal flashing used over exterior
slide door track along the full length of the door
header to protect the tracks from weather and to
conceal them for aesthetic purposes .