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1 2 3 4 5 6 7 8 5.01 OVERVIEW & APPLICATIONS Trusses are connected to each other, as well as to other building systems and bearings, through the use of proprietary connectors. These proprietary connectors, are manufactured by Alpine and form an integral part of the complete TrusSteel system. The following pages of this manual are an introduction to these connectors and their use. This introduction is not intended to be a comprehensive technical guide for each connection type. For complete technical data on each connection, please refer to the TrusSteel Standard Details. All connectors attach to TrusSteel trusses with standard self-drilling tapping screws. Connectors attach to different bearing materials through the use of a variety of screws, pins, welds and embedded anchors. Other Connections The following connections are not shown in this manual - please refer to the Standard Details: • truss fabrication connections (chord to web, chord to chord, etc.) • assembly of multi-ply trusses (whereby several trusses are connected side-by-side to create one multi-ply truss) • connection or suspension of mechanical loads from trusses. General Notes for All Connections • Connectors and fasteners specified are designed to support the loads listed in the allowable tables on the TrusSteel Standard Details and in this manual. • Install connectors and fasteners as specified on the TrusSteel Standard Details. Refer to the Standard Details for important information not shown in this manual. • Allowable loads have not been increased for wind, seismic or other factors. • Install all fasteners and connectors prior to loading the connection. • Allowable loads are listed in imperial (LBS) and metric (kN) units. • All steel thicknesses given are actual base metal thicknesses. • Connectors are fabricated from G-90 or equal galvanized steel. Notes for Truss-to-Truss Connections • Connections are designed to support vertical loads only in an upward or downward direction. Notes on Truss-to-Bearing Connections • Upward loads listed are MAXIMUM allowable loads. • For lateral load capacities, see the Standard Details. • If upward loads will be acting in combination with lateral loads, please contact a TrusSteel engineer to determine the adequacy of the connection. General Notes for Fasteners The fasteners specified in this publication, and on the Standard Details, shall be used in strict accordance with the Details. If an "or equal" statement appears within a Detail, the substituted fastener shall be qualified by a professional engineer prior to the installation of the substitute. The allowable load capacity of the substituted fastener shall be confirmed through reliable published test data or calculations. Notes on Self-Drilling Tapping Screws (SDS) • Allowable loads are determined per the AISI North American Specification for the Design of Cold-Formed Steel Structural Members • SDS shall comply with ASTM C1513 or an approved design or recognized design Standard • #10 tapping screw is 0.19" (nom. dia.) • #12 tapping screw is 0.216" (nom. dia.) • #14 tapping screw is 0.25" (nom. dia.) • Screw spacing, end and edge distance shall be 3 times the nominal diameter. • Screw point style to be determined, based upon the recommended steel thickness for the given style. • Screw length to be determined, so that when installed the screw shows three exposed threads (out the back of the connected parts) or as otherwise determined by a professional engineer. • References - AISI/COFS/AISI-S240-15-Chapter A North American Standard for Cold-Formed Steel Framing - General Provisions - Technical Note F102-11, Screw Fastener Selection for Cold-Formed Steel Frame Construction, CFSEI, November 2011 ENGINEERED BY ALPINE CO N N E C T I O N S / D E TA I L S