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down to the last page for the verification forms and mailing instructions.
This 4 hour course is approved for:
1. Dwelling Contractor Qualifier Certification.
2. UDC Construction Inspector.
3. CommercialBuilding Inspector.
Use this Construction/HVAC Glossary to answer the
questions below.
Construction Glossary
Accessory: A component of the framing structure used
in conjunction with other structural members. Rim, blocking, squash blocks, and
web stiffeners are examples of accessories.
Allowable Stress Design: The most common design
methodology for wood-framed construction. In most cases, only "allowable
stress" is factored, although there are exceptions.
Axial Load: A load running parallel to the long axis
of a structural member.
Area Load: A load that covers an area of a surface
rather than a single point.
Beam: A structural member supporting a load
perpendicular to its length, such as a joist, flush beam, header, or purlin. In
commands, the TJ-Beam® program uses the term beam to refer to all types of
horizontal members.
Bearing: A point at which one
building element rests on another.
Bending moment: The force that causes a horizontal
member or other structural member to bend (force x distance).
Blocking: Pieces of wood
inserted tightly between joists, studs, or rafters in a building frame to
stabilize the structure, inhibit the passage of fire, provide a nailing surface
for finish materials, or retain insulation.
Blocking Panel: I-Joist blocking.
BOCA: Building Official’s Council of America
Blocking: Pieces of wood inserted
tightly between joists, studs, or rafters in a building frame to stabilize the
structure, inhibit the passage of fire, provide a nailing surface for finish
materials, or retain insulation.
Bridging: A system of lateral braces placed between
joists to distribute the load and keep the joists in position.
Cantilever: In the TJ-Beam® program, this term refers
to that portion of a structural member extending beyond its support. Also referred to as an overhang.
Clear Span: The distance between the inside face of
bearings.
Column: A vertically oriented member designed to
carry primarily axial loads.
Configuration: The design or arrangement of a member
within the structure to achieve the necessary application requirements.
Conflict of interest: means a certified inspector
inspecting work in which the inspector or the inspector’s employer, other than
the state or a municipality, has participated or has a monetary or personal
interest.
Continuous Span: A single member supported not only
at its ends but also at interior point(s). A continuous span occurs when a
member spans across more than two supports, similar to multiple span.
Dead Load: A stationary and constant load created by
the weight of building materials, permanent fixtures etc. The dead load is
specified by the user and should take into account any unmoving and permanent
loading conditions.
Decking: Material used to span across beams or joists
to create a floor or roof surface.
Deflection: The movement of a structural member due
to applied loads. The amount of displacement resulting from
this movement. The movement or "sag" caused by loading is
sometimes expressed as a fraction of the span in inches (for example, L/360).
All structural members deflect to varying degrees.
Design: A TJ-Beam® process that examines the input
information, performs engineering or structural analysis calculations, selects
Trus Joist products based on this analysis, and prepares output information for
review or printed report. A member must pass go through the Design process to
receive the Trus Joist product warranty.
Drop Beam: The alignment of the bottom of joists,
flush beams, and other framing components with the top of a beam.
Eccentricity: The distance from the column centerline
to the location of the applied load. Typical columns are subject to a small
amount of eccentric loading. To ensure structural integrity is not compromised,
Trus Joist requires that all columns designed with a minimum amount of
eccentricity, measured from the centerline of the column, be 1/12 of the
thickness and 1/6 of the width.
Flange: The top and bottom components in an
engineered lumber I-joist that connect the central web and give the joist its
stability.
Flush Beam: Alignment of the top of a horizontal member
with the top of the joists and other flush beams; generally, bearing occurs
with the use of hangers. See also "girder".
Formwork: The total system of support for
freshly-placed concrete including the mold or sheathing that contacts the
concrete and all supporting members, hardware, and necessary bracing.
Girder: A horizontal or sloping member that supports
joists or other beams. Referred to in the TJ-Beam® program as
a flush beam or drop beam. (See also "flush beam" and
"drop beam".)
Glulam: A structural wood product in which individual
pieces of sold-sawn lumber are bonded together with adhesives to make a single
piece in which the grain of all the constituent pieces are parallel. Typically
used as a large-dimension beam.
Hanger: Any of a class of hardware used to
support or connect members. Also called a connector.
Header: A structural member extending horizontally
between two posts or wall studs to support a window or door opening, including
a garage door. Also called a flush beam.
Hip End: A roof type characterized by three
adjacent sloped roof surfaces that meet at a common point. Hip-end load
dynamics can be run in the Load Macros window. See also step-down hip end and
terminal hip end.
Horizontal Member: A horizontal beam, header, or joist.
I-Joist: A structural member whose
cross-section resembles the capital letter "I". An engineered wood
I-joist includes top and bottom flanges or chords, the part of the joist that
resists tension and compression. The flanges are grooved to accommodate a
center panel or web, which is used mainly in resisting shear stress. See also
"joist".
Incompetence: means conduct which evidences a
lack of competence or ability to discharge the duty required to protect the
health, safety and welfare of the public, lack of knowledge of the fundamental
principles of a particular trade or practice, or an
inability to apply those
principles, or failure to maintain competency in the current practices and
methods applicable to the activity and the state statutes and rules governing
the activity.
Justification: The locations of the member dimension
with respect to the bearing material (such as face, center, or outside of
bearing).
Joist: One of a series of parallel framing
members used to support floor or ceiling loading.
Joist Span: The clear span plus one-half the bearing
distance required at each end.
Lateral Stability: Bracing of a structural
member to prevent buckling. For bending members, a portion of the cross-section
is stressed in compression and a portion is stressed in tension. If the
compression zone is not properly braced it may buckle.
Ledger: A member that is fastened to a wall for the
purpose of supporting perpendicular members.
Length: The overall distance of a member from one end to the
other.
Line Load: A load, such as a perpendicular wall
applied as a point load and expressed in plf (pounds per lineal foot) so that
the program will multiply it by the on center spacing.
Live Load: Live loads can be applied as point or
distributed (area) loads. Live loads take into account movable furniture,
active inhabitants, and any other arbitrary stress on the framing support
members.
Live Load Deflection: The distance the member moves
vertically due to live load only, measured in inches or fractions thereof.
Load: The force or combination of forces that act
upon a structural system or individual member. Loads are classified as
"live loads" or "dead loads".
Load Duration Factor: A factor used to adjust
allowable design stresses of wood-based products based on the expected
cumulative duration of applied design loads. The classic example is the
temporary snow load for roofs: if a factor of 100 percent load accounts for
normal loading applied for 10 years, then a 115 percent factor could be used
for roofs expected to withstand snow loading applied for 2 to 3 months at a
time.
Load Group: A set of base loads in conjunction with
additional loads (uniform, point, tapered, and/or axial) that act independently
on a framing member. "Independently" means that when individual load
groups are input the loads from Load Group 2 are not considered to act in
conjunction with Load Group 1. Likewise, loads from Load Group 1 are not
considered to act on the member in conjunction with Load Group 2 loads.
TJ-Beam® currently supports two load groups. An application load group and a
"Negative Wind" load group.
Lumber (Solid Sawn): The product of cutting or sawing
logs into wood structural members. Dimension lumber typically refers to lumber
that measure 2" to 5" thick and 2" to 12" wide, such as 2x4
or 2x12.
Macro: A predefined set of instructions in a program
that, when utilized, performs a specific task or function.
Member Length: Overall end-to-end length of a member.
Member Span: Distance between supports; a single
member can have multiple spans.
Misconduct: means an act performed by an individual
relating to the responsibilities or duties for which the individual has been
licensed, registered or certified that jeopardizes the interests of the public,
including violation of federal or state laws, local
ordinances or administrative rules; preparation of deficient
or falsified reports; failure to submit information or reports required by law
or contract when requested by the municipality or the department; conduct which
evidences a lack of trustworthiness; misrepresentation of qualifications such
as education, experience or certification;
illegal entry of premises; misuse
of funds; or misrepresentation of authority.
Moment: A torque; a force
acting at a distance from a point in a member to cause a tendency for the
member to rotate or bend about that point. Usually expressed
in measure units of ft lbs or in. pounds. See also "bending
moment".
A torque; a force acting at a
distance from a point in a member to cause a tendency for the member to rotate
or bend about that point. Usually expressed in measure units
of ft lbs or in. pounds. See also "bending moment".
Multiple Span: A span that
occurs when a horizontal member or joist spans across more than two supports.
NBCC:NationalBuilding Code of Canada.
Negligence: means the failure to exercise the
degree of care and judgment to protect public health and safety normally
expected of an individual performing activities within
the scope of a license, certification or registration category.
On Center (OC): The measured distance between the
centers of two parallel members in a structure, usually to define the spacing
between wall studs, joists, and rafters; typically referred to as on-center
spacing.
Open Web Truss: A heavy-duty joist in which the web
is a zigzag or crisscross pattern of wood or steel tubing instead of a solid
plate or web connecting the chords or flanges.
Overhang: In the TJ-Beam® program, this term refers
to that portion of a structural member extending beyond its support. Also referred to as a cantilever.
Partition: A dividing wall within a building. It can
be either load bearing or non-load bearing.
Partition Load: A dead load applied to floors in
addition to all other loads to account for partition locations that are subject
to change. This load type is applicable to office buildings and other buildings
where partition locations are subject to change. The load is typically 20 psf.
Pitch: The degree of slope for a roof, expressed as a
number over 12 (representing inches across a flat plane). For a roof sloped at
5/12, the roof joist will rise vertically 5" for every 12" of
horizontal run.
Pitched Truss: A truss with a
top chord that slopes up from either support to a ridge while the bottom chord
is not sloped. The truss depth varies and is minimal at the ends.
Point Load: The load concentrated at a single point
on a member.
Post: A structural column used to support a
horizontal member or other structural member in a building. In lumber, most
grading rules define a post as having dimensions of 5 inches by 5 or more
inches in width, with the width not more than 2 inches greater than the
thickness.
Purlins: The horizontal framing members in a gambrel
roof between upper and lower rafters. A support member that is oriented with
its top face parallel to the roof deck.
Rafter: In roofs, as series of sloping parallel
members used to support a roof covering.
Reaction: A force or load applied to the supporting
structure by a structural member at the points of support. Also called
restraining forces, it can be viewed as the force required at the ends of the
horizontal member to support the horizontal member.
Reparative Member Increase: Flexural stresses may be
increased for a member that is considered repetitive. There must be three or
more adjacent members spaced less than 24 inches OC that are joined by decking.
Truss Joist allows an increase of 1.04 for trusses with LVL and 1.07 for
trusses with MSR.
Ridge: The uppermost horizontal line of a roof where
two inclines meet.
Rim Board: A support and closure material usually
added around the outside of a framing area to protect the interior of joist
areas and provide bearing support for walls. There are numerous product types
used for the rim application including joists, blocking panels, dedicated rim
board, and plywood.
Safe Load: A concentrated load considered to be
distributed over a 2.5 square foot area in a building. The safe load in an
office floor is typically 2,000 pounds, and replaces the normal live loads for
that area.
SBCC: Southern Building Code Congress
Seismic Load: A load on a structure caused by
movement of the earth relative to the structure during an earthquake.
Shear: Internal forces within a member that tend to
slide or shear two parts of the member relative to one another. Shear is
highest at the ends of a single span member.
Simple Span: A single span member supported at its
ends.
Slope: The amount of vertical incline that a member
rises or lowers from a horizontal plane. The exact units used are defined in
the Units of Measure dialog box. See also "pitch".
Span: The distance between two supporting members
(such as for a horizontal member, girder, truss, vault, arch, or other
horizontal structural device) to carry a load between supports. A multiple span
occurs when a beam or joist spans across more than two supports. Member spans
typically transfer loads to supports.
Squash Block: An accessory used to transfer
loads from above to a support without loading the joist member.
Step-down hip end: A pure step-down hip characterized
by a terminal hip shape with the girder truss being located part-way down the
end roof slope, or a "Dutch Hip" (a cross between a gabled roof and a
terminal hip end in which the girder truss marks the location of the gable). In
either case, the TJ-Beam® program uses the information about hip-end type to
calculate loads in the Load Macro window.
Stress: A measure of load conditions on a structural
member.
Structural Class: A value describing the type of
structure being built.
Tapered Load: A distributed load
that varies in magnitude linearly from end-to-end.
Tapered Truss: A distributed load that
varies in magnitude linearly from end-to-end.
Top Cord: The top "flange" of an Open-web
truss.
Total Deflection: Member movement under combined live
and dead loads.
Tributary Width: The width of loading area for a
structural member. This width is defined by the spacing of joists and other
supporting members. The width is always one-half the span of the member(s)
framed into the beam, column, or joist under design. For continuous floor spans
of similar size, the tributary width to an intermediate member is approximately
5/8" of the floor spans.
Truss: A structural component composed of a
combination of members, usually in a triangular arrangement, to form a rigid
framework used to support loads.
UBC:UniformBuilding Code
Unbalanced Load: Live load applied to each
combination of alternate spans. For example, on a truss with cantilevers on
either end, the live load would be applied to all three spans, to the outside
spans only, and to the middle span only. This is also referred to as "skip
loading" (in the UK),
"alternate span loading," or "pattern loading."
Unbalance Snow Load: Similar to an unbalanced load
except the snow or roof load can either be removed completely from alternate
spans or 50 percent of the snow/roof load can be removed from alternate spans.
Uniform Load: Also referred to as distributed load,
in the TJ-Beam® program this is a load type in which the magnitude of the load
is distributed across the length of a member with equally loaded starting and
ending loads. It is normally expressed in psf or plf.
Uplift: Negative reaction by the member.
Units:UniformBuilding Code
Valley: The angle or channel where the low end of the
roof slopes meet.
Web Stiffener: An accessory used to add structural
support to the web material in I-joists. Special web stiffeners typically
pertain to web stiffeners that have been bevel cut to match a roof's slope.
Match the definition to the correct word or phase
The
width of loading area for a structural member. This width is defined by
the spacing of joists and other supporting members. The width is always
one-half the span of the member(s) framed into the beam, column, or joist
under design. For continuous floor spans of similar size, the tributary width
to an intermediate member is approximately 5/8" of the floor spans.
Tributary
Width
Unbalanced
Load
Area
Load
Load
Group
The
amount of vertical incline that a member rises or lowers from a horizontal
plane. The exact units used are defined in the Units of Measure dialog
box. See also "pitch".
Pitch
Slope
Rafter
Pitch
truss
A
force or load applied to the supporting structure by a structural member
at the points of support. Also called restraining forces, it can be viewed
as the force required at the ends of the horizontal member to support the
horizontal member.
Reaction
Uplift
Unbalanced
load
Moment
Means
the failure to exercise the degree of care and judgment to protect public
health and safety normally expected of an individual
performing activities within the scope of a license, certification
or registration category.
Negligence
Misconduct
Incompetence
Conflict
of interest
A
torque; a force acting at a distance from a point
in a member to cause a tendency for the member to rotate or bend about
that point. Usually expressed in measure units of ft lbs or in. pounds.
See also "bending moment".
A torque; a force
acting at a distance from a point in a member to cause a tendency for the
member to rotate or bend about that point. Usually expressed
in measure units of ft lbs or in. pounds.
Bending
moment
Moment
Eccentricity
Load
A
point at which one building element rests on another.
Load
Bearing
Area
load
Span
A
load running parallel to the long axis of a structural member.
Area
Load
Axial
Load
Line
Load
Load
A
measure of load conditions on a structural member.
Load
Bearing
Stress
Span
Pieces
of wood inserted tightly between joists, studs, or rafters in a building
frame to stabilize the structure, inhibit the passage of fire, provide a nailing
surface for finish materials, or retain insulation.
Web
stiffener
Blocking
Purlin
Web
filler
The
total system of support for freshly-placed concrete including the mold or
sheathing that contacts the concrete and all supporting members, hardware,
and necessary bracing.
Web
stiffener
Framework
Purlin
Web
filler
In
roofs, as series of sloping parallel members used to support a roof
covering.
Pitch
Slope
Rafter
Pitch
truss
A
structural member supporting a load perpendicular to its
length, such as a joist, flush beam, header, or purlin. In
commands, the TJ-Beam® program uses the term beam to refer to all types of
horizontal members.
Area
Load
Axial
Load
Bearing
Beam
Pieces
of wood inserted tightly between joists, studs, or rafters in a building
frame to stabilize the structure, inhibit the passage of fire, provide a
nailing surface for finish materials, or retain insulation.
Web
stiffener
Blocking
Purlin
Web
filler
The
design or arrangement of a member within the structure to achieve the
necessary application requirements.
Dead
load
Uniform
load
Configuration
Eccentricity
A
structural member extending horizontally between two posts or wall studs
to support a window or door opening, including a garage door. Also called
a flush beam.
Glulam
Beam
Header
Girder
The
movement of a structural member due to applied loads. The amount of
displacement resulting from this movement. The movement or "sag"
caused by loading is sometimes expressed as a fraction of the span in inches
(for example, L/360). All structural members deflect to varying degrees.
Bending
moment
Moment
Eccentricity
Deflection
A
horizontal or sloping member that supports joists or other beams. Referred
to in the TJ-Beam® program as a flush beam or drop beam.
Glulam
Beam
Header
Girder
Building
Official’s Council of America
BOCA
UBC
SBCC
NBCC
A
structural member whose cross-section resembles the capital letter
"I". An engineered wood I-joist includes top and bottom flanges
or chords, the part of the joist that resists tension and compression. The
flanges are grooved to accommodate a center panel or web, which is used
mainly in resisting shear stress.
Horizontal
member
Beam
Header
I-joist
The distance
from the column centerline to the location of the applied load. Typical
columns are subject to a small amount of eccentric loading. To ensure
structural integrity is not compromised, Trus Joist requires that all
columns designed with a minimum amount of eccentricity, measured from the
centerline of the column, be 1/12 of the thickness and 1/6 of the width.
Bending
moment
Moment
Eccentricity
Deflection
The
top and bottom components in an engineered lumber I-joist that connect the
central web and give the joist its stability.
Horizontal
member
Flange
Web
stiffener
I-joist
A
structural component composed of a combination of members, usually in a
triangular arrangement, to form a rigid framework used to support loads.
Pitch
Slope
Rafter
Truss
A member
that is fastened to a wall for the purpose of supporting perpendicular
members.
Joist
Rim
Board
Ledger
I-joist
A
predefined set of instructions in a program that, when utilized, performs
a specific task or function.
Macro
Justification
Reparative
Member Increase
Lateral
Stability
A
horizontal beam, header, or joist.
Horizontal
member
Beam
Header
I-joist
The
locations of the member dimension with respect to the bearing material
(such as face, center, or outside of bearing).
Justification
Allowable
Stress Design
Load
Duration Factor
Lateral
stability
Means
conduct which evidences a lack of competence or ability to discharge the
duty required to protect the health, safety and welfare of the public,
lack of knowledge of the fundamental principles of a particular trade or
practice, or an
inability
to apply those principles, or failure to maintain competency in the current
practices and methods applicable to the activity and the state statutes and
rules governing the activity.
Negligence
Misconduct
Incompetence
Conflict
of interest
A
concentrated load considered to be distributed over a 2.5 square foot area
in a building. The safe load in an office floor is typically 2,000 pounds,
and replaces the normal live loads for that area.
Live
load deflection
Safe
Load
Dead
load
Live
load
A
single span member supported at its ends.
Clear
Span
Multiple
Span
Continuous
Span
Simple
Span
The
top "flange" of an Open-web truss.
Web
stiffener
Blocking
Top
Cord
Web
filler
A single
member supported not only at its ends but also at interior point(s). A
continuous span occurs when a member spans across more than two supports,
similar to multiple span.
Clear
Span
Multiple
Span
Continuous
Span
Simple
Span
The
most common design methodology for wood-framed construction. In most
cases, only "allowable stress" is factored, although there are
exceptions.
Axial
Load
Load
Duration Factor
Allowable
Stress Design
Load
Duration Factor
The
clear span plus one-half the bearing distance required at each end.
Joist
span
Beam
Header
I-joist
Live
loads can be applied as point or distributed (area) loads. Live loads take
into account movable furniture, active inhabitants, and any other
arbitrary stress on the framing support members.
Live
load deflection
Load
Dead
load
Live
load
Bracing
of a structural member to prevent buckling. For bending members, a portion
of the cross-section is stressed in compression and a portion is stressed in
tension. If the compression zone is not properly braced it may buckle.
Squash
block
Purlin
Bridging
Lateral
stability
Also
referred to as distributed load, in the TJ-Beam® program this is a load
type in which the magnitude of the load is distributed across the length
of a member with equally loaded starting and ending loads. It is normally
expressed in psf or plf.
Load
Duration Factor
Unbalanced
Load
Unbalance
Snow Load
Uniform
Load
The
overall distance of a member from one end to the other.
Clear
span
Length
Area
load
Span
One
of a series of parallel framing members used to support floor or ceiling
loading.
Joist
Rim
Board
Ledger
I-joist
A
load, such as a perpendicular wall applied as a point load and expressed in
plf (pounds per lineal foot) so that the program will multiply it by the
on center spacing.
Area
Load
Axial
Load
Line
Load
Load
A
set of base loads in conjunction with additional loads (uniform, point,
tapered, and/or axial) that act independently on a framing member.
"Independently" means that when individual load groups are input
the loads from Load Group 2 are not considered to act in conjunction with
Load Group 1. Likewise, loads from Load Group 1 are not considered to act
on the member in conjunction with Load Group 2 loads. TJ-Beam® currently
supports two load groups. An application load group and a "Negative
Wind" load group.
Load
Load
Duration Factor
Load
Group
Line
Load
A
truss with a top chord that slopes up from either support to a ridge while
the bottom chord is not sloped. The truss depth varies and is minimal at
the ends.
Pitch
Slope
Rafter
Pitch
Truss
Southern
Building Code Congress
BOCA
UBC
SBCC
NBCC
Means
an act performed by an individual relating to the responsibilities or duties
for which the individual has been licensed, registered or certified that
jeopardizes the interests of the public, including violation of federal or
state laws, local
ordinances or administrative rules;
preparation of deficient or falsified reports; failure to submit information or
reports required by law or contract when requested by the municipality or the
department; conduct which evidences a lack of trustworthiness;
misrepresentation of qualifications such as education, experience or
certification; illegal entry of premises; misuse of funds; or misrepresentation
of authority.
Negligence
Misconduct
Incompetence
Conflict
of interest
A
span that occurs when a horizontal member or joist spans across more than
two supports.
Clear
Span
Multiple
Span
Continuous
Span
Simple
Span
I-Joist
blocking.
Web
stiffener
Blocking
Panel
Purlin
Web
filler
A
factor used to adjust allowable design stresses of wood-based products
based on the expected cumulative duration of applied design loads. The
classic example is the temporary snow load for roofs: if a factor of 100
percent load accounts for normal loading applied for 10 years, then a 115
percent factor could be used for roofs expected to withstand snow loading
applied for 2 to 3 months at a time.
Axial
Load
Load
Duration Factor
Load
Group
Line
Load
Distance
between supports; a single member can have multiple spans.
Member
Span
Member
Length
Continuous
Span
Simple
Span
A
component of the framing structure used in conjunction with other
structural members. Rim, blocking, squash blocks, and web stiffeners are
examples of accessories.
Squash
block
Purlin
Bridging
Accessory
A
load on a structure caused by movement of the earth relative to the
structure during an earthquake.
Area
Load
Seismic
Load
Line
Load
Axial
Load
NationalBuilding Code of Canada.
BOCA
UBC
SBCC
NBCC
A
support and closure material usually added around the outside of a framing
area to protect the interior of joist areas and provide bearing support for
walls. There are numerous product types used for the rim application
including joists, blocking panels, dedicated rim board, and plywood.
Joist
Rim
Board
Ledger
I-joist
Alignment
of the top of a horizontal member with the top of the joists and other flush
beams; generally, bearing occurs with the use of hangers.
Flush
Beam
Beam
Header
Drop
Beam
A
dead load applied to floors in addition to all other loads to account for
partition locations that are subject to change. This load type is
applicable to office buildings and other buildings where partition
locations are subject to change. The load is typically 20 psf.
Cantilever
Overhang
Partition
Partition
Wall
Similar
to an unbalanced load except the snow or roof load can either be removed completely
from alternate spans or 50 percent of the snow/roof load can be removed
from alternate spans.
Load
Duration Factor
Unbalanced
Load
Unbalance
Snow Load
Uniform
Load
The
distance between two supporting members (such as for a horizontal member,
girder, truss, vault, arch, or other horizontal structural device) to
carry a load between supports. A multiple span occurs when a beam or joist
spans across more than two supports. Member spans typically transfer loads
to supports.
Member
Span
Span
Continuous
Span
Simple
Span
The
distance between the inside face of bearings.
Clear
Span
Multiple
Span
Continuous
Span
Simple
Span
The
force that causes a horizontal member or other structural member to bend.
Bending
moment
Moment
Eccentricity
Deflection
A load
that covers an area of a surface rather than a single point.
Area
Load
Axial
Load
Line
Load
Load
A
system of lateral braces placed between joists to distribute the load and
keep the joists in position.
Squash
block
Purlin
Bridging
Lateral
stability
A
vertically oriented member designed to carry primarily axial loads.
Post
Beam
Column
Stud
means a certified inspector inspecting work in which
the inspector or the inspector’s employer, other than the state or a
municipality, has participated or has a monetary or personal interest.
Negligence
Misconduct
Incompetence
Conflict
of interest
A
stationary and constant load created by the weight of building materials,
permanent fixtures etc. The dead load is specified by the user and should take
into account any unmoving and permanent loading conditions.
Live
load deflection
Load
Dead
load
Live
load
Material
used to span across beams or joists to create a floor or roof surface.
Deck
Beam
Joist
Header
The
alignment of the bottom of joists, flush beams, and other framing
components with the top of a beam.
Flush
Beam
Beam
Header
Drop
Beam
The
force or combination of forces that act upon a structural system or
individual member. Loads are classified as "live loads" or
"dead loads".
Live
load deflection
Load
Dead
load
Live
load
A
structural wood product in which individual pieces of sold-sawn lumber are
bonded together with adhesives to make a single piece in which the grain
of all the constituent pieces are parallel. Typically used as a large-dimension
beam.
Flush
Beam
Beam
Glulam
Drop
Beam
Any
of a class of hardware used to support or connect members.
Squash
block
Purlin
Bridging
Hanger
A
roof type characterized by three adjacent sloped roof surfaces that meet
at a common point. Hip-end load dynamics can be run in the Load Macros
window. See also step-down hip end and terminal hip end.
Pitch
Slope
Rafter
Hip
End
The
distance the member moves vertically due to live load only, measured in
inches or fractions thereof.
Live
load deflection
Load
Dead
load
Live
load
Overall
end-to-end length of a member.
Member
Span
Member
Length
Continuous
Span
Simple
Span
In
the TJ-Beam® program, this term refers to that portion of a structural
member extending beyond its support
Cantilever
Overhang
Partition
Both
a and b
The
horizontal framing members in a gambrel roof between upper and lower
rafters. A support member that is oriented with its top face parallel to
the roof deck.
Post
Purlin
Column
Stud
A
heavy-duty joist in which the web is a zigzag or crisscross pattern of
wood or steel tubing instead of a solid plate or web connecting the chords
or flanges.
Joist
Rim
Board
Open
Web Truss
I-joist
UniformBuilding Code
BOCA
UBC
SBCC
NBCC
In the
TJ-Beam® program, this term refers to that portion of a structural member
extending beyond its support.
Cantilever
Overhang
Partition
Both
a and b
A
dividing wall within a building. It can be either load bearing or non-load
bearing.
Cantilever
Overhang
Partition
Partition
Wall
The
degree of slope for a roof, expressed as a number over 12 (representing
inches across a flat plane). For a roof sloped at 5/12, the roof joist
will rise vertically 5" for every 12" of horizontal run.
Pitch
Slope
Rafter
Hip
End
The
load concentrated at a single point on a member.
Live
load deflection
Concentrated
Load
Point
load
Uniform
load
Live
load applied to each combination of alternate spans. For example, on a
truss with cantilevers on either end, the live load would be applied to
all three spans, to the outside spans only, and to the middle span only.
This is also referred to as "skip loading" (in the UK),
"alternate span loading," or "pattern loading."
Load
Duration Factor
Unbalanced
Load
Unbalance
Snow Load
Uniform
Load
A
structural column used to support a horizontal member or other structural
member in a building. In lumber, most grading rules define a post as
having dimensions of 5 inches by 5 or more inches in width, with the width
not more than 2 inches greater than the thickness.
Post
Beam
Column
Stud
The
uppermost horizontal line of a roof where two inclines meet.
Ridge
Truss
Rafter
Hip
End
Internal
forces within a member that tend to slide or shear two parts of the member
relative to one another. Shear is highest at the ends of a single span
member.
Live
load deflection
Concentrated
Load
Point
load
Shear
Flexural
stresses may be increased for a member that is considered repetitive.
There must be three or more adjacent members spaced less than 24 inches OC
that are joined by decking. Truss Joist allows an increase of 1.04 for
trusses with LVL and 1.07 for trusses with MSR.
Joist
Rim
Board
Reparative
Member Increase
I-joist
Internal
forces within a member that tend to slide or shear two parts of the member
relative to one another. Shear is highest at the ends of a single span
member.
Shear
Moment
Deflection
Reaction
An
accessory used to transfer loads from above to a support without loading
the joist member.
Squash
block
Purlin
Bridging
Hanger
Member
movement under combined live and dead loads.
Shear
Moment
Deflection
Total
Moment
The
product of cutting or sawing logs into wood structural members. Dimension
lumber typically refers to lumber that measures 2"
to 5" thick and 2" to 12" wide, such as 2x4 or 2x12.
Post
Beam
Column
Lumber
The
measured distance between the centers of two parallel members in a
structure, usually to define the spacing between wall studs, joists, and
rafters; typically referred to as on-center spacing.
Member
Span
Span
On
Center
Simple
Span
Negative
reaction by the member.
Shear
Uplift
Moment
Deflection
The
angle or channel where the low end of the roof slopes meet.
Slope
Rafter
Valley
Pitch
An accessory
used to add structural support to the web material in I-joists. Special
web stiffeners typically pertain to web stiffeners that have been bevel
cut to match a roof's slope.