Steel Buildings - Glossary of Common Terms
H-Section
A steel member of a steel building system with an H shaped cross section.
A steel member of a steel building system with an H shaped cross section.
Hair Pin
Reinforcing steel used to transfer anchor bolt shear to the concrete floor.
Reinforcing steel used to transfer anchor bolt shear to the concrete floor.
Haunch
Part of a column or rafter designed to accommodate the higher bending moments at such points.
Part of a column or rafter designed to accommodate the higher bending moments at such points.
Header
The framing member positioned at the top of a framed opening.
The framing member positioned at the top of a framed opening.
High Strength Bolts
Bolts that are made from steel having a tensile strength in excess of 100,000 pounds per square inch. Some examples of high strength bolts include; ASTM A-325, A-449, and A-490.
Bolts that are made from steel having a tensile strength in excess of 100,000 pounds per square inch. Some examples of high strength bolts include; ASTM A-325, A-449, and A-490.
High Strength Steel
Structural steel having a yield stress in excess of 36,000 pounds per square inch.
Structural steel having a yield stress in excess of 36,000 pounds per square inch.
Hinged Base
Also called a pinned base, a hinged base is a column base that is designed to resist horizontal and vertical movement, but not rotation.
Also called a pinned base, a hinged base is a column base that is designed to resist horizontal and vertical movement, but not rotation.
Hip
The line formed at the intersection of two adjacent sloping planes of a steel building roof.
The line formed at the intersection of two adjacent sloping planes of a steel building roof.
Hip Roof
A steel building roof system that is formed by sloping planes from all four sides.
A steel building roof system that is formed by sloping planes from all four sides.
Hoist
A mechanical lifting device usually attached to a trolley that travels along a bridge, monorail, or jib crane.
A mechanical lifting device usually attached to a trolley that travels along a bridge, monorail, or jib crane.
Hood
A metal flashing that is used to cover slide door tracks in order to concel and protect the tracks from weather.
A metal flashing that is used to cover slide door tracks in order to concel and protect the tracks from weather.
Horizontal Guide Rollers
Wheels that roll on the side of the rail to restrict lateral movement of a crane .
Wheels that roll on the side of the rail to restrict lateral movement of a crane .
Hot-Rolled Steel Shapes
Steel sections formed by rolling mills while the steel is in a semi-molten state.
Steel sections formed by rolling mills while the steel is in a semi-molten state.
"I"-Beam
A hot rolled beam with narrow tapered flanges.
A hot rolled beam with narrow tapered flanges.
Impact Load
A load that is created by the movement of machinery, elevators, craneways, vehicles, and other similar forces.
A load that is created by the movement of machinery, elevators, craneways, vehicles, and other similar forces.
Impact Wrench
A power tool commonly used by erectors to tighten the nuts and bolts when erecting a steel building system.
A power tool commonly used by erectors to tighten the nuts and bolts when erecting a steel building system.
Installation
The assembling of fabricated steel building system components to form a completed structure.
The assembling of fabricated steel building system components to form a completed structure.
Insulation
Material used in the walls and roof of a steel building system in order to reduce heat transfer.
Material used in the walls and roof of a steel building system in order to reduce heat transfer.
Internal Pressure
Pressure inside a building.
Pressure inside a building.
Jack Beam
A steel beam used to support another beam, rafter or truss and eliminate a column support.
A steel beam used to support another beam, rafter or truss and eliminate a column support.
Jack Truss
A truss used to support another beam, rafter, or truss and eliminate a column support.
A truss used to support another beam, rafter, or truss and eliminate a column support.
Jamb
The vertical framing members located at the sides of an opening.
The vertical framing members located at the sides of an opening.
Jib Crane
A suspended beam with hoist and trolley. This lifting device is designed to pick up loads in all or part of a circle around the column to which it is attached.
A suspended beam with hoist and trolley. This lifting device is designed to pick up loads in all or part of a circle around the column to which it is attached.
Jig
A device used to hold pieces of material into position during fabrication.
A device used to hold pieces of material into position during fabrication.