a| b| c| d| e| f| g| h| i| j| k| l| m| n| o| p| q| r| s| t| u| v| w| x| y| z

A

  • ACCESSORY A building component added to a basic Kirby structure, such as door, window, ventilator, etc.
  • AISIAmerican iron and Steel Institute
  • AISC American Institute of SI eel Construction
  • ALUMINIZED Aluminum coated Steel
  • ANCHOR BOLTS Bolts used 10 anchor structural members to a foundation or other support
  • ANCHOR BOLT DRAWINGS Show the size, location and projection of all anchor bolts for the components of the metal building system, (he length and width of the foundation (which may vary from (he nominal size of The metal building system) and column reactions (magnitude and direction). The maximum base plate dimensions may also be shown.
  • APPROVAL DRAWINGS Include anchor bolt drawing Framing plans, elevations and sections through the building for approval of the buyer or his consultant.
  • AUTOMATIC WELDINGA welding procedure utilizing a machine to make a weld.
  • AUXILIARY LOADSAll dynamic live loads required by the contract documents such as cranes and material handling systems.
  • A.W.S.American Welding Society
  • AXIAL FORCEA force tending to elongate and shorten a member.

B

  • BCBeam and Column building. A single gable, rigid frame building with interior columns.
  • BASE ANGLEA continuous angle secured to foundation to support wall panels.
  • BASE CHANNELA light gauge cold formed channel which replaces the base angle when liner panel or double sheeted partitions are required.
  • BASE PLATEA plate attached to that portion of a beam or column that rests on the supposing surface, usually seeded with anchor bolts
  • BAY (END)The distance between first interior frame and inside of end wall panel.
  • BAY (INTERIOR)The distance between center lines of two rigid frames Or transverse bents, measured parallel to the ridge.
  • BEAMA structural member usually horizontal carrying vertical loads which is ordinarily subject to bending.
  • BEAM, CANTILEVERA beam supported al one end only and tree at the other; such as brackets, canopies , flag poles
  • BEAM, CONTINUOUSA beam which has more than two points of support, (continuous span).

C

  • " C " SECTIONA member cold formed iron steel sheet in the shape of a block "C" with or without lips al edge of flanges.
  • CALORIEQuantity of heat required to raise the temperature of one gram of water through 1°�C( 1 BTU = 252 Calories)
  • CAMBERUpward curvature of a beam in the place of its web before loading, to offset an anticipated defection when load is applied.
  • CANOPYA projecting beam that is supported end restrained at one end only.
  • CAPILLARY ACTIONThat action which causes movement of liquids when in contact with two adjacent surfaces such as panel side laps.
  • CAP PLATEA plate located at the top of a column or end of a beam for capping the exposed end of the member.
  • CAULKSee sealant
  • CHANNEL - HOT ROLLED - A “C"shaped member formed while in a semi-molten slate at the steel mill to a shape hav­ing standard dimensions and properties.
  • CLIPA plate or angle used to fasten two or more members together
  • CLOSURE STRIPA resilient strip formed to the contour of ribbed panels and used to seal around openings created by metal panels joining other components and at horizontal and vertical comers of a building.
  • COLD FORMINGThe process of using press brakes or rolling mills to shape steel into desired cross sections at room temperature.
  • COLLATERAL LOADAll additional dead loads required by the Contract documents other than the weight of the metal building system, such as sprinklers, mechanical and electrical systems and ceilings.
  • COLUMNA main member used in a vertical position on a building to transfer loads from main roof beams, trusses, or rafters to the foundation
  • COMPONENTA part of a metal building system
  • COMPRESSIONThe act of causing material to contract or shorten.
  • CONCENTRATED LOADA load app; ed on a member at a point or over a very short distance.
  • CONTINUITYThe terminology given to a structural system denoting the transfer of loads and stresses from member to member as if there were no connections.
  • CONTRACT DOCUM ENTSThe documents which define the responsibilities of the parties involved in the sale, design, supply and erection (if any }of a metal building system. Such documents normally consist of a contract and specification. Plans may be included.
  • CORNER TRIMPreformed sheet metal trim used to close the junction of sidewall and end wall sheets.
  • COVERINGThe exterior metal roof and wall paneling of a metal building system.
  • CRANEA machine designed to move material by means of a hoist.
  • CRANE RAILA track s supporting and guiding the wheels of a bridge crane or trolley system, and mounted on crane run�way beams.
  • CRANE RUNWAY BEAMThe member that supports a crane rail and is supported by columns or rafters depending on the type of crane system. On under hung bridge cranes, runway beams also act as crane rail.
  • CURBA raised edge or a concrete floor slab.
  • CURTAIN WALLPerimeter wall panels which carry only their own weight and wind load.

D

  • DAMPERA baffle used to open or close the throat of ventilators.
  • DEAD LOADThe self weight of tile metal building system construe lion, such as framing, and covering members.
  • DEFLECTIONThe displacement of a structural member of system under load.
  • DESIGN LOADSThe loads expressly specified in the contract documents which the metal building system is designed to safely resist.
  • DIAGONAL BRACINGSee Brace Rods
  • DIAPHRAGM ACTIONThe capacity of a roof, wall, or floor system to resist load in its own plane. (As building roof and wall systems resisting longitudinal wind load without rod bracing).
  • DOOR GUIDEAn angle or channel guide used to stabilize or Keep plumb a sliding or rolling door during its operation,
  • DOWNSPOUTA conduit used to carry water from the gutter of a building.
  • DRIFT PINA tapered pin used during erection to align holes in steel members 1o be connected by bolting ( also called spud wrench ).

E

  • EAVEThe line along the sidewall formed by the intersection of the planes of the roof and wall.
  • EAVE GUTTERSee Gutter.
  • EAVE H EIGHTThe vertical dimension from bottom of column base plate to top of the eave strut.
  • EAVE STRUTA structural member located al the eave of a building which supports roof and wall paneling. Also member which transmits longitudinal wine forces on end wall from roof brace rods to wall brace rods.
  • EAVE TRIMPreformed sheet metal I rim used to close off top of sidewall panels at roof line In lieu of eave gutter.
  • ELASTIC DESIGNA design concept utilizing the proportional behavior of materials when all stresses are limited 10 specified allowable values of the yield stress of the materials.
  • END FRAMEA frame located at the end wall of a building which supports the loads from a portion of the end bay.
  • END WALLAn exterior wall which is perpendicular to the ridge of the building.
  • END WALL COLUMNA vertical member located at the end wall of a building which Supports the girts.
  • END WALL EXTENSION The projection of the roof past the end wall.
  • ERECTIONThe on-site assembling of fabricated components to form a complete structure.
  • ERECTION DRAWINGSA package of Drawings, issued for construction and include anchor bolt drawings and roof' and wall framing (erection) plans that identify individual components and accessories furnished by Kirby in sufficient detail to permit proper erection of the building.
  • EXPANSION JOINTA break or space in construction to allow for thermal expansion and contract ion of the materials used in the structure.

F

  • FABRICATIONThe manufacturing process performed in a plant to convert raw material into finished metal building components. The main operations are CO Id forming, cutting, punching, welding, cleaning and painting.
  • FASCIAA structural framing member projecting from the face of a wail for decorative purposes.
  • FIELDThe "Job site", "building site" or general marketing area. FILLER STRIP - See "Closure"
  • FIXED BASEA column base that is designed to resist rotation as well as horizontal or vertical movement (develops bending moment).
  • FLANGEThe projecting portion of a structural member (C, I, H shapes).
  • FLANGE BRACINGA bracing member used to provide lateral support to the compression flange of a beam, girder or column.
  • FLASHINGSee Trim.
  • FLUSH FRAMESA wall framing system where the outside flange of the girts and columns are flush,
  • FOOTINGA pad or mat. usually of concrete, located under a column, wall or other structural member, that is used to distribute the loads from that member into the supporting soil.
  • FOUNDATIONThe substructure which supports a building or other structure
  • FRAMEPrimary structural members made up of columns, rafters which support secondary framing.
  • FRAMED OPENINGJambs, headers and flashing which surround an opening in the wall of a metal building.

G

  • GABLEThe triangular portion of the end wall located above the elevation of the bottom of eave strut,
  • GABLE ROOFA ridged roof that terminates in gables.
  • GAGEDistance between holes along transverse axis of plate.
  • GAUGENumerals referring to thickness of thin sheeting materials, No direct mathematical relation between gauge number and thickness: the higher the gauge number, the thinner the sheeting material.
  • GALVANIZEDSteel coated with Zinc for corrosion resistance,
  • GIRDERA main horizontal or near horizontal structural member that supports vertical loads, It may consist of several pieces.
  • GIRTA horizontal structural member that is attached to sidewall or end wall columns and supports paneling.
  • GLAZE OR GLAZINGThe process of installing glass in windows and doors.
  • GRADEThe term used when referring to the ground elevation around a building.
  • GRADE BEAMA concrete beam around (he perimeter of a building.
  • GROUTA mixture of lament, sand and water used to fill cracks and cavities. Sometimes used under base plates or leveling places to obtain uniform bearing surfaces. Normally used in conjunction with metal building systems.
  • GUSSET PLATEA steel plate used to reinforce or connect structural elements.
  • GUTTERA light gauge metal member at an eave, valley or parapet designed to carry water from the roof to downspouts or drains.

H

  • "H" SectionA steel member with an H cross section.
  • HAIRPINU-shaped reinforcing steel or round bar hooked around anchor bolts and embedded in concrete floor mass, to transfer the horizontal thrust at the base of the rigid frames to the concrete floor.
  • HAUNCHThe deepened portion of a column or rafter designed to accommodate the higher bending moments at such points. (Usually occurs at the connection of column and rafter). Also referred to as Knee.
  • HAUNCH B RACEA diagonal brace from the intersection of the column and rafter section of the rigid frame to the eave to prevent lateral buckling of the haunch,
  • HEADERThe horizontal framing member located at the fop of a framed opening.
  • HEMEdge of trim or flashing turned 180 degrees on itself for increased strength.
  • HIGH STRENGTH BOLTSAny bolt made from steel having a tensile strength in excess of 100,000 pounds per square inch (690 MPa).
  • HIGH STR ENGTH STEELStructural steel having a yield stress in excess of 36.000 pounds per square inch (250 MPa).
  • HINGED BASEA column base which is designed to resist horizontal and vertical movement but not rotation. Also refer­red to as pinned base.
  • HIP ROOFA roof which 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.
  • HOISTA mechanical lifting device usually attached to a trolley which travels along a bridge, monorail or jib crane. May be chain or electric operated.
  • HOODMetal flashing to cover exterior sliding door track along the full length of the door header.
  • HOT ROLLED SHAPESSteel section (angles, channels, S-shapes, W-Shapes, etc) which are formed by rolling mills while the steel is in a semi-molten state.

I

  • IMPACT LOADA dynamic load resulting from the motion of machinery, elevators, crane ways, vehicles, and other similar moving forces Sec Auxiliary Loads.
  • IMPACT WRENCHA pneumatic device used to tighten nuts on-bolts.
  • INSULATIONAny material used in building construction to reduce heat transfer.
  • INTERNAL PRESSUREPressure made a building which is a function of wind velocity and number and location of openings.

j

  • JACK BEAMA beam used to support another beam or rafter or truss and eliminate a column support.
  • JAMBThe vertical framing members located at the sides of wall opening.
  • JIB CRANEA cantilevered boom or horizontal beam with hoist and trolley. This lifting machine may pick up loads in all or part of a circle around the column to which it is attached.
  • JIGA device used to hold pieces of material in a certain position during fabrication.
  • JOISTOpen web beam for supporting the floor or roof, made of continuous angular lop and bottom chords which are connected with vertical and diagonal angles.

K

  • KICK-OUTAn extension attached to the bottom of a downspout to direct water away from a wall. Also referred to as Turn-Out or Elbow
  • KILO-CALORIE (K.CAL)Quantity of heat required 10 raise the temperature of one Kilogram of water by 1°C
  • KILOGRAMMetric Unit of Mass. {1 Kg = 2.2 Ibm}.
  • KIPAn imperial unit to measure force equal to 1000 pounds equivalent to 4.4 kilonewtons.
  • KIRBY-DECK PANELStandard corrugated panel used for floor deck.
  • KIRBY-RIB PANELStandard corrugated pane! used for roof, liner and soffits.
  • KIRBY-WALL PANELSStandard corrugated panel used for exterior surface of walls,

l

  • LEAN-TOA structure such as a shed, having only one column and depending upon another structure for partial support.
  • LEVELING PLATEA steel plate used on top of a foundation or other support on which a structural column can rest.
  • LINER PANELA metal panel attached to the inside flange of the girts, or the purlin.
  • LINTELA beam : concrete, steel or stone, in masonry walls, placed above doors, openings or windows to support masonry above.
  • LIPA stiffener at the edge of flange of cold formed members.
  • LIVE LOADAny moving or variable load which the structure must support due to the use or occupancy of the building.
  • LOUVERAn opening provided with fixed or movable, slanted fins to allow flow of air.

m

  • MAIN MEMBERSThe main load carrying members of a structural system including columns, end wall posts, rafters and other main support members.
  • MANSARD FASCIAA tilted fascia projected from the wall and extended above roof line to form as decorative ap­pearance and to hide the roof line.
  • MASONRYConstruction materials such as bricks, concrete blocks, ceramic blocks, and concrete.
  • MASTICMaterial used to seal cracks, joints and laps.
  • MBMAMetal Building Manufacturers Association.
  • MBMA CODE OF STANDARD PRACTICESA listing of normal conditions that apply to the sale, design, fabrication and erection of a metal building system.
  • METAL BUILDING SYSTEMA metal building system consists of a group of coordinated components, including struc­tural members, exterior covering panels, fastening devices and accessories, which have been designed for specific loads, which will work together compatibly and which have been engineered so that they may be mass produced and assembled in various combinations, or in a combination with various collateral materials, to provide an enclosed or par­tially enclosed structure.
  • METERMetric unit of length (1 m = 3.28 ft)
  • MEZZANINEAn intermediate floor within a metal building used for offices or storage, may or may not be connected to main frame building, and consisting of beams, columns, joists, deck and edge angles to receive reinforced concrete.
  • MICRONEquivalent to 0.001 Millimeter
  • MILEquivalent lo0.001 Inch
  • MOMENTThe tendency of a force to cause rotation or bending, about a point or axis. Force times a distance (Torque).
  • MOMENT CONNECTIONA connection designed to transfer moment as well as axial and shear forces between con­necting members.
  • MOMENT OF JNERTIAA physical property of a member which helps define strength and deflection characteristics.
  • MONITORRaised gable or triangular portion of main building at ridge location to allow lighting or ventilation at vertical sides of monitor.
  • MONOLITHIC CONSTRUCTIONA method of pouring concrete grade beam and floor slab together :form the building foundation without forming and pouring each separately.
  • MONORAILA single rail support for a material handling system. Normally a standard hot rolled I-Beam.
  • MPaMega-Pascal
  • MULLIONVertical member connecting two windows located side by side.
  • MULTI-SPAN BUILDINGBuilding consisting of more than one gable across the width which may or may not have in­terior columns within each gable.

n

  • NEWTON Metric unit of force (IN = 4.45 Ibf)

o

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p

  • PANELGauge metal sheets usually with ribbed configuration and used for Roof and Wall skins
  • PARAPETThat portion of the wall which extends vertically above the roof line to form a fascia type appearance.
  • PARTITIONAn interior dividing wall.
  • PASCALMetric unit of stress or pressure, force per unit area (N/M^2)
  • PEAKThe uppermost point of a gable.
  • PEAK PANELA "Kirby-Rib" panel located at the building peak conforming to roof slopes.
  • PEAK SIGNA sign attached to the peak of the building at end wall showing Kirby as the building manufacturer.
  • PERSONNEL DOORA door used by personnel for access to and exit from a building.
  • PIECE MARKA number given to each separate part of the building for erection identification. Also called mark number and part number.
  • PIERA concrete structure designed to transfer vertical load from base of column to a footing.
  • PIG SPOUTA sheet metal section designed to direct the flow of water out through the face of the gutter rather than through a downspout.
  • PILASTERA reinforced or enlarged portion of a masonry wall 10 provide support for roof loads or lateral loads on the wall.
  • PIN NED BASEA column base that is designed to resist horizontal and vertical movement, but not rotation.
  • PIN CONNECTIONA connection designed to transfer the axial and shear forces between connecting members, but not moments.
  • PITCHDistance between holes along longitudinal axis of plate.
  • PLASTIC DESIGNA design concept based on multiplying the actual loads by a suitable load factor using the yield stress as the maximum stress in any member.
  • PLASTIC PANELSSee Translucent Light Panels.
  • PONDINGThe gathering of water at low or irregular areas on a roof.
  • POP RIVETSee " Blind Rivet".
  • PORTAL FRAMEA rigid frame structure so designed that it offers rigidity and stability in its plane. It is used to resist longitudinal loads while diagonal bracing is not permitted. (.also "Wind Bent").
  • POST (END POST)See "End Wall Column''
  • PRE-PAINTED COILCoil metal which received a paint coating prior to the forming operation.
  • PRESS BRAKEA machine used in cold-forming metal sheet or strip into desired cross section.
  • PRESTRESSED CONCRETEConcrete in which the reinforcing cables, wires or rods in the concrete are tensioned before there is load on the member, holding the concrete in compression for greater strength.
  • PRISMATIC BEAMA beam with uniform rectangular cross section.
  • PURLINA horizontal structural member attached to the main frames which supports roof panels.

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r

  • RFA single gable rigid frame building.
  • RAFTERThe main beam of the frames supporting the roof system.
  • RAKEThe intersection of the plane of the roof and the plane of the end wall.
  • RAKE ANG LEAngle fastened to purlins at rake for attachment of end wall sheets.
  • RAKE TRIMSheet metal flashing used to cover the intersection of the roof and the end wall of a building.
  • REACTIONSThe resisting forces at the column bases of a frame, holding the frame in equilibrium under a given loading condition.
  • REINFORCING STEELThe steel bars placed in concrete to help carry the tension, compression and shear stresses, as well as temperature stresses.
  • RIDGEHighest point on the roof of the building which describes a horizontal line running the length of the building.
  • RIDGE CAPA transition of the roofing materials along the ridge of a roof,
  • RIGID CONNECTIONSee "Moment Connection".
  • RIGID FRAME A structural frame consisting of members joined together with rigid for moment connections so as to render the frame stable with respect to the design loads, without the need for bracing in its plane.
  • ROLL-UP DOORDoor that is supported on a shaft or drum and a vertical track.
  • ROOF COVERINGThe exposed exterior roof skin consisting of panels or sheets.
  • ROOF LI VE LOADThose loads induced by the use and occupancy of the building, not including wind load, seismic load or dead load.
  • ROOF OVERHANGA roof extension beyond the end wall or sidewall of a building.
  • ROOF PITCHRatio of rise to total width of a single slope
  • ROOF SLOPEThe angle that a roof surface makes with the horizontal .Usually expressed in units of vertical rise to 10 units of horizontal run.
  • ROOF SNOW LOADThe load induced by the weight of snow on the roof of the structure.
  • ROPESEAL(See "Sealant")

s

  • SS Single Slope clear span buildings
  • SVSpace Saver building - a single gable clear span with straight columns and flush girts to offer maximum clearances,
  • SAG ROD, STRAP, OR ANGLEA tension member used to limit the deflection of a girt or purlin in the direction of the weak axis.
  • SANDWICH PANELA panel assembly used as covering; consists of an insulating core material with inner and outer skins.
  • SCREEDINGThe process of striking off the excess concrete to bring the top surface of the concrete to proper finish and elevation.
  • SEALANTAny material which is used to seal cracks, joints or laps
  • SECTION MODULUSA physical property of a structural member. It is used to design and basically describes the bending strength of a member.
  • SEISMIC LOADThe assumed lateral load acting in any horizontal direction on a structural system due to the action of an earthquake, usually a proportion of dead load.
  • SELF DRILLING SCREWA fastener which combines the functions of drilling and tapping. It is used for attaching panels to purlins and girts.
  • SELF TAPPING SCREWA fastener which taps its own threads in a pre drilled hole. It is for attaching panels to purlins and girts, for connecting trim, flashing, and panel side lap.
  • SHEARThe force tending to make two contacting parts slide upon eachother in opposite directions parallel to their plane of contact
  • SHEET NOTCHA notch or block termed along the outside edge of the foundation to provide support for the wall panels and serve as a closure along their bottom edge.
  • SHEETING ANGLEAn angle used to support sheeting.
  • SHIMA piece of steel used to level base plates or square beams.
  • SHIPPERA list that enumerates by part number or describes each piece of material or assembly to be shipped. Also called tally sheet or bill of materials.
  • SOLDIER COLUMNA column in sidewalls. outside the main frame lines, located in extended bays to support sidewall girls framed at too with jack beam to adjacent two main frames.
  • SHOP PRIMER PAI NTThe initial coat of primer paint applied in the shop.
  • SHOULDER BOLTA fastener used to attach wall and roof paneling to the structural frame. It consists of a large diameter shank and a small diameter stud. The shank provides support for the panel rib.
  • SHOT PINA device for fastening items by the utilization of a patented device which uses powdered charge to imbed the item in the concrete and / or steel
  • SIThe International symbol for the metric unit used by the United States {Le Sysleme Iniernational d'Unites).
  • SIDE LAP FASTENERA fastener used to connect panels together at the Side lap.
  • SIDE WALLAn exterior wall which is parallel to the ridge of the building.
  • SIDE WALL OVERHANGA projection of the roof past the sidewalk
  • SILLThe bottom horizontal framing member of an opening such as a window or door.
  • SILL ANGLESee " Base Angle "
  • SIMPLE SPANA term used in structural analysis to describe a support condition for a beam, girl, purlin, etc. which offers no resistance to rotation at the supports: opposite to continuous.
  • SINGLE SLOPEA slope in one plane. The slope is from one wall to the opposite wall.
  • SINGLE SPANA building or structural member without intermediate support.
  • SKYLIGHTA translucent panel. A roof accessory to admit light, made of fiber glass reinforced polyester to the profiles of Kirby standard sheeting profiles.
  • SLIDING DOORA single Or double leaf door which opens on a horizontal track by means of overhead trolleys.
  • SOFFITA metal panel which covers the underside of an overhang, canopy, or fascia.
  • SOIL PRESSUREThe load per unit area a structure will exert through its foundation on the soil.
  • SPALLA chip or fragment of concrete which has chipped, weathered or otherwise broken tram the main mass of concrete.
  • SPANThe out-to-out of steel lines for building frames, or the distance between supports of beams for secondary members
  • SPLICEA connection in a structural member.
  • STAINLESS STEELAn alloy of steel which contains a high percentage of chromium. Also may contain nickel or copper.
  • STIFFENERA member used to strengthen a plate against lateral or local buckling. Usually a flat bar welded perpendicular to the longitudinal axis of the member.
  • STIFFENER LIPA short extension of material at an angle to the flange of cold formed structural members, which adds strength to the member.
  • STILESThe vertical side members of framed and paneled doors.
  • STRESSA measure of the load on a structural member in terms of force per unit area (kips per sq. in.) (MPa).
  • STRUTA brace fitted into a framework which resists axial compression forces.
  • STRUT PURLINAn additional purlin in braced bays located close to the purlin at the intersection of roof brace rods and the frame rafter as required by design.
  • STUDA vertical wall member to which exterior or interior covering or collateral material may be attached. May be either load bearing or non-load bearing.
  • SUCTIONA partial vacuum resulting from wind loads on a building which cause a load in the outward direction.

t

  • TAPERED MEMBERA built-up plate member consisting of flanges welded to a variable depth web.
  • TEMPERATURE REINFORCINGLight weight deformed steel rods or wire mesh placed in concrete to resist possible cracking from thermal expansion or contraction.
  • TENSILE STRENGTHThe longitudinal pulling stress a material can bear without tearing apart.
  • THERMAL BLOCKA spacer of low thermal conductance material.
  • THERMAL CONOUCTIVITY (k)The rate of heal transmission by conduction in unit time through unit area of an infinite slab in a direction perpendicular to the surface for unit temperature difference, expressed as BTU per hour per square foot per inch thickness per *F.
  • THERM AL CONDUCTANCE (C)The rate of heat flow, in BTU's per hour, through a square loot of material of specified thickness whose surfaces have a temperature differential Of 1 *F.
  • THERMAL RESISTANCE (R)Resistance to heat low. The reciprocal of conductance (C).
  • THERMAL TRANSMITTANCE (U)The rate of heat transmission in unit time through unit area of an assembly of materials for unit temperature difference, expressed as BTU per hour per square foot per "F. This is also referred to as the overall coefficient of heat transfer.
  • THROATMinimum width of ventilator air inlet.
  • THRUSTThe horizontal component of a reaction.
  • TIEA structural member that is loaded in tension.
  • TORQUE WRENCHA wrench containing an adjustable mechanism for measuring and controlling 1 he amount of torque or turning force to be exerted often used in tightening nuts and high strength Dolts.
  • TRANSLUCENT LIGHT PANELSTranslucent plastic panels used to admit sunlight.
  • TRANSVERSEThe direction perpendicular to I he ridge.
  • TRIBUTARY AREAThe area which contributes load to a specific structural component.
  • TRIMThe fight gauge metal used in the finish of a building especially around openings and at intersection of surfaces. Often referred to as flashing.
  • TRACKA metal guide for moving components; consisting of angles or channels, with fastenings, lies, etc. for a crane way, monorail or slide door.
  • TRUSSA structure made up of three or more members, with each member designed to carry a tension or compression force. The entire structure in turn acts as a beam.
  • TURNOUTSee “Kickout”
  • TURN-OF-THE-NUT METHODAn approved method for pre-tensioning high strength bolls. The nut is turned from the snug-tight position, corresponding to a few blows of an impact wrench or the full effort of a man using an ordinary spud wrench, the amount of relation required being a function of the bolt diameter and length.

u

  • UNIFORM LOADA load which is evenly spread over a large area of a framing system,
  • UPLIFTWind load on a building which causes a load in the upward direction. (See "Suction").

v

  • VALLEY GUTTERA channel used to carry off water from the " V" of roofs of multi-gabled buildings.
  • VENTILATORAn accessory, usually used on the roof, that allows the air to pass through.

w

  • WAINSCOTWall material, used in the lower portion of a wall, that is different from the malarial in the rest of the wall.
  • WALL, BEARINGWall capable of supporting a vertical load, other than its own weight.
  • WALL COVERINGThe exterior wall skin consisting of panels or sheets.
  • WALL, NON BEARINGWall capable of supporting its own weight only.
  • WEBThat portion of a structural member between the flanges.
  • WEB MEMBERA secondary structural member vertical or diagonal interposed between the top and bottom chords of a truss.
  • WICKET DOORAn access door within one leaf of a sliding door.
  • WIND BENTSee "Portal Frame".
  • WIND COLUMNA vertical member supporting a wall system designed to withstand horizontal wind loads usually at end walls
  • WIND LOADThe load caused by the wind blowing from any horizontal direction.

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z

  • "Z" SECTIONA member cold formed from steel coil in the shape of a block "Z".
  • ZINC-ALUMINIUM COATEDSteel coated with zinc and aluminum for corrosion resistance
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