A Technical Committee was established and began to research and document important issues in metal building design and construction. Pitch The peak height of a gabled building divided by its overall span. Stiffener: A member used to strengthen a plate against lateral or local buckling. The uninterrupted principle area of a roof, exclusive of edges, accessory and other flashing areas. F Fabrication The manufacturing process performed in a plant to convert raw material into finished Metal Building System components.
Gable Roof: A roof consisting of two sloping roof planes that form a ridge and form a gable at each end. This course, developed with the help of a team of architects, provides an overview of engineered metal building systems, how they are different from other metal structures and how to work with these structures. Film Laminated Coil Coil metal that has a corrosion resistant film laminated to it prior to the forming operation. Hem The edge created by folding metal back on itself. Shear: The force tending to make two contacting parts slide upon each other in opposite directions parallel to their plane of contact.
Translucent Panels: See Light Transmitting Panels. In residential applications, a spike is nailed through the gutter into the fascia board to hold the gutter in place. On underhung bridge cranes, the runway beam also acts as the crane rail. Shoulder Bolt A fastener used to attach wall and roof paneling to the structural frame. Parapet: That portion of the vertical wall of a building that extends above the roofline. In order to accurately design a pre-engineered building, engineers consider the clear span between bearing points, bay spacing, roof slope, live loads, dead loads, collateral loads, wind uplift, deflection criteria, internal crane system and maximum practical size and weight of fabricated members.
Rake Trim A flashing designed to close the opening between the roof and endwall panels. Soffit: A material, which covers the underside of an overhang. Pendant-Operated Crane Crane operated from a pendant control unit suspended from the crane. Transverse The direction parallel to the main frames. E Eave The line that is usually parallel to the ridge line formed by the intersection of the planes of the roof and wall. Pre-Painted Coil: Coil of metal, which has received a paint coating.
The action, work, or profession of an engineer. Power Actuated Fastener: A device for fastening items by the utilization of a patented device that uses an explosive charge or compressed air to embed the pin in concrete or steel. The secondary members and cladding nest together reducing transportation cost. Note: Thermal resistivity and thermal conductivity are reciprocals. Tributary Area The area directly supported by the structural member between contiguous supports. Parts and Portions: See Components and Cladding. Masonry: Anything constructed of materials such as bricks, concrete blocks, ceramic blocks, and concrete.
Endwall Type Refers to the type of framing that is used at and endwall. Kip: A unit of measure equal to 1,000 pounds. A pre-engineered metal structure is made up of beams welded together to create a frame that can be utilized and customized to meet many structural design schemes. P Pan The bottom flat part of a roof panel, which is between the ribs of the panel. Thermal Emittance The ratio of the radiant heat flux emitted by a sample to that emitted by a blackbody radiator at the same temperature.
A metal panel profile attached to and formed around a wood or metal batten, 2. Self-Drilling Screw: A fastener that combines the function of drilling and tapping. Oil canning is not a cause for rejection of the material. Soffit Vent A pre-manufactured or custom built air inlet located in the soffit of a roof assembly. Loads vary from no load to occasional full rated loads with two to five lifts per hour, averaging 10 feet per lift. This choice saves a considerable amount of up-front costs, as well.
Jamb The vertical framing members located at the sides of an opening. Jib Crane: A cantilevered or suspended beam with hoist and trolley. Progressive accumulation of water from deflection due to rain loads. Posttensioning A method of prestressing reinforced concrete in which tendons are tensioned after the concrete has reached a specific strength. Coped Flashing A sheet metal flashing, cut or formed to the contour of ribbed panels and used to close openings created by ribbed panels joining other components. Hip The line formed at the intersection of two adjacent sloping planes of a roof.
Eave Height The vertical dimension from finished floor to the eave. Â Places: Department, sales region, building, room, branch office, campus. Erection Drawings Roof and wall erection framing drawings that identify individual components and accessories furnished by the manufacturer in sufficient detail to permit proper erection of the Metal Building System. Rigid Frame A structural frame consisting of members joined together with moment connections so as to render the frame stable with respect to the design loads, without the need for bracing in its plane. Impact Wrench A power tool used to tighten nuts on bolts.
Framed Opening: Framing members and flashing which surround an opening. Capacity The maximum load usually stated in tons that a crane is designed to support. Longitudinal Crane Direction parallel to the crane runway beams. L Lap Joint A joint where one roof panel or flashing segment overlaps another. Straight Tread Wheels: Crane wheels with flat-machined treads and double flanges, which limit the lateral movement of the crane. Electric Overhead Traveling Crane An electrically-operated machine for lifting, lowering and transporting loads, consisting of a movable bridge carrying a fixed or movable hoisting mechanism and traveling on an overhead runway structure. These individuals may be representatives of the owner, design professional, general contractor, erector, or building officials.