Titans Steel Structures, Inc.





	\| A-C \| D-F \| G-J \| K-O \| P-R \| S-Z \| S Sag Member - A tension member used to limit the deflection of a girt or purlin in the deflection of the weak axis. Sag Rod, Strap, or Angle - See "Sag Member" Sandwich Panel - A panel assembly used as covering consists of an insulating core material with inner and outer skins. SBCCI (sometimes SBC) - Southern Building Code Congress International, Inc. Screeding - The process of striking off the excess concrete to bring the top surface of the concrete to proper finish and elevation. Sealant - Any material which is used to seal cracks, joints, or laps. Section Modulus - A physical property of a structural member. It is used to design and basically describes the bending strength of a member. Sectional Overhead Doors - Doors Constructed in horizontally hinged sections. They are equipped with springs, tracks, counter balancers, and other hardware which roll the sections into an overhead position, clear of the opening. Seismic Load - The assumed lateral load acting in any horizontal direction on a structural system due to the action of an earthquake. Self Drilling Screw - A fastener which combines the functions of drilling and tapping. It is used for attaching panels to purlins and girts. Self Tapping Screw - A fastener which taps its own threads in a pre-drilled hole. It is for attaching panels to purlins and girts and for connecting trim and flashing. Shear - The force tending to make two contacting parts slide upon each other in opposite directions parallel to their plane of contact. Shear Diaphragm - See "Diaphragm" Sheet Notch - A notch or block-out formed along the outside edge of the foundation to provide support for the wall panels and serve as a closure along their bottom edge. Shim - A piece of steel used to level base plates or square beams. Shipping List - A list that enumerates by part number or description each piece of material or assembly to be shipped. Also called tally sheet, bill of materials, or packing list. Shop Primer Paint - The initial coat of primer paint applied in the shop. Shoulder Bolt - A 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 Pin - A device for fastening items by the utilization of a patented device which uses a powdered charge to imbed the item in the concrete and/or steel. SI - The International symbol for the metric unit used by the United States (Le Systeme International d’ Unites). Side Lap Fastener - A fastener used to connect panels together at the side lap. Side Wall - An exterior wall which is parallel to the ridge of the building. Side Wall Overhang - A projection of the roof past the side wall. Sill - The bottom horizontal framing member of an opening such as a window or door. Sill Angle - See "Base Angle" Simple Span - A term used in structural analysis to describe a support condition for a beam, girt, purlin, etc., which offers no resistance to rotation at the supports. Single Slope - A sloping roof in one plane. The slope is from one wall to the opposite wall. Single Span- A building or structural member without intermediate support. Siphon Break - A small groove to arrest the capillary action of two adjacent surfaces. (Anti-Capillary Groove). Skylight - A roof accessory to admit light, normally mounted on a curbed framed opening. Slide Door - A single or double leaf door which opens horizontally by means of overhead trolleys. Snow Load - See "Roof Snow Load" Soffit - A metal panel which covers the underside of an overhang or mansard. So. Fla. - South Florida Code Soil Pressure - The load per unit area a structure will exert through its foundation on the soil. Spall - A chip or fragment of concrete which has chipped, weathered, or otherwise broken from the main mass of concrete. Span - The distance between supports of beams, birders, or trusses. Splice - A connection in a structural member. Square - The term used for an area of 100 square feet (9.29 M²). Stainless Steel - An alloy of steel which contains a high percentage of chromium. Also may contain nickel or copper. Steel Line - The outside perimeter of structural steel or inside of wall panels. Stiffener - A 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 Lip - A short extension of material at an angle to the flange of cold formed structural members, which adds strength to the member. Stiles - The vertical side members of framed and paneled doors. Stitch Screw - A fastener used to connect panels at the side lap or to connect flashing to the panels. Stress - A measure of the load on a structural member in terms of forces per unit area (kips per sq. in. ) (Mpa). Strut - A brace fitted into a frame work which resists axial forces. Stud - A vertical wall member to which exterior or interior covering or collateral material may be attached. May be either load bearing or non-load bearing. Suction - A partial vacuum resulting from wind loads on a building which cause a load in the outward direction. T Tapered Member - A built up plate member consisting of flanges welded to a variable depth web. Temperature Reinforcing - Light weight deformed steel rods or wire mesh placed in concrete to resist possible cracks from thermal expansion or contraction. Tensile Strength - The longitudinal pulling stress a material can bear without tearing apart. Thermal Block - A spacer of low thermal conductance material. Thermal Conductivity, (K) - The rate of heat flow, in BTU’s per hour, through a square foot of material exactly one inch thick whose surfaces have a temperature differential of 1^o F. Thermal Conductance (C) - The rate of heat flow in BTU’s per hour, through a square foot of material or a combination of material whose surfaces have a temperature differential of 1^o F. Thermal Resistance (R) - Resistance to heat flow. The reciprocal of conductance (C). Thermal Transmittance (U) - The rate of heat flow per square foot under steady conditions from the air on the warm side of a barrier to the air on the cold side, for 1^oF of temperature difference between the two (BTU/Ft²/hr./1^oF). Thrust - The horizontal component of a reaction. Tie - A structural member that is loaded in tension. Torque Wrench - A wrench containing an adjustable mechanism for measuring and controlling the amount of torque or turning force to be exerted - often used in tightening nuts and bolts. Translucent Light Panels - Translucent plastic panels used to admit sunlight. Transverse - The direction perpendicular to the ridge. Tributary Area - The area which contributes load to a specific structural component. Trim - The light gage metal used in the finish of a building, especially around openings and at intersection of surfaces. Often referred to as flashing. Track - A metal way for wheeled components; specifically one or more lines of ways, with fastenings, ties, etc. for a craneway, monorail, or slide door. Truss - A 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. Turnout - See "Kickout" Turn-of-the-Nut-Method - A method for pre-tensioning high strength bolts. 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 rotation required being a function of the bolt diameter and length. U UBC - Uniform Building Code. Uplift - Wind load on a building which causes a load in the upward direction. See "Suction" V Valley Gutter - A channel used to carry off water from the "V" of roofs of multi-gabled buildings. Ventilator - An accessory, usually used on the roof, that allows the air to pass through. W Wainscot - Wall material, used in the lower portion of a wall, that is different from the material in the rest of the wall. Wall Covering - The exterior wall skin consisting of panels or sheets. Web - That portion of a structural member between the flanges. Web Member - A secondary structural member interposed between the top and bottom chords of a truss. Welded -Up Section- See "Built-Up Section" Wind Bent - See "Portal Frame" Wind Column - A vertical member supporting a wall system designed to withstand horizontal wind loads. Wind Load - The load caused by the wind blowing from any horizontal direction. Z "Z" Section - A member cold formed from steel sheet in the shape of a block "Z". Zinc-Aluminum Coated - Steel coated with zinc and aluminum for corrosion resistance.