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Allowable Shear Loads per Double-Shear Fastener LBS (kN) Tube Web Thickness Chord Thickness in Mils (GA) Mils (GA) 28 (22) 33 (20) 43 (18) 54 (16) 68 (14) 97 (12) 33 (20) 700 (3.11) 772 (3.43) 878 (3.91) 995 (4.43) 995 (4.43) 995 (4.43) 47 (18) 779 (3.47) 977 (4.35) 1263 (5.62) 1348 (5.60) 1348 (5.60) 1348 (5.60) 63 (16) 779 (3.47) 977 (4.35) 1263 (5.62) 1348 (5.60) 1348 (5.60) 1348 (5.60) 1 2 3 4 5 6 7 8 3.05 TRUSSTEEL SYSTEM Chord members Chord members are available in three series: TSC2.75, TSC3.00 and TSC4.00. Available in a variety of material thicknesses, chords may be intermixed within a truss to achieve the most efficient truss designs. All steel conforms to ASTM A653, A653M-15e1 and A500 standards. See the table in this Section, and the TrusSteel Standard Details, for member properties. Web Members Web members are either closed welded rectangular steel tubes or patented, proprietary roll-formed z-webs. Members are available in many dimensions and thicknesses, and are used in trusses as needed for their individual strength and stiffness. Pitch Break Connectors Internal connections between truss chords are made using patented pitch break connectors. These internal connectors allow for the assembly of very consistent joints at critical points such as at the truss peak. Installation Hardware A full line of installation hardware is available for attaching TrusSteel trusses to steel, CFS, concrete and wood supports as well as to other trusses. All hardware components are load rated - see Section 5 for details. Double-Shear TM Fasteners TrusSteel trusses are assembled using the patented #14 Double-Shear self-drilling tapping fasteners. This technology provides a rigid, bolt- like connection at all chord-to-web intersections. Each fastener employs an integral washer and Anti-Backout TM technology to resist movement and back-out. Color-coded, marked fasteners create the most dependable, easily inspected connection available for CFS materials. These fasteners also allow the single-sided fabrication of trusses (truss assembly without "flipping" trusses). Refer to Standard Detail TS011 for allowable shear loads per fastener into various thicknesses of steel. Galvanization TrusSteel chords, webs and hardware components are galvanized for protection against corrosion during fabrication and installation. Most TrusSteel components have G- 90 galvanized coating. TrusSteel's galvanization protection far exceeds the industry standard G- 60 coating. The unique, patented shape of TrusSteel chord members gives them exceptional strength and stiffness. Combined with the TrusSteel webs, connectors and the patented Double-Shear TM fasteners, these elements can create CFS trusses that have the highest strength-to-weight ratio in the industry. Notes 1. Based upon the material thicknesses of TrusSteel members. 2. Double-Shear fasteners include 14AMDB1.25, 14AMDR1.5, 14AMDB2.125, 14AMDR2.375. 3. Fastener values were determined by tests following guidelines set forth in Chapter F of the 2007 edition of the North American Specification for the Design of Cold-Formed Steel Structural Members Typical pitch break connection ENGINEERED BY ALPINE T R U S S D E S I G N M A N UA L