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•'L.'.'11·11·11·••J1.L: 9'8 GANDC PAC <br />INTRODUCTION <br />The purpose of this Report is to determine the Structurni capacity and allowable loads <br />for ren (10} aluminum lighting lusses configurations as fabricated DY Total <br />Fabrieations, Inc. The following truss configurations will be investigated: <br />. Heavy Duty Truss Series ·, <br />1 Medium Duty Truss Series, <br />t. Light Duty Trus® Series / <br />Par Truss Series <br />. Medium Duty Triangular Truss Series <br />Light Duly Triangular Truss Series <br />· Folding Truss Series (263 <br />1 8x 1 8 Truss Series <br />24x24 Truss Serias <br />0. Fold Flat Truss Series <br />The truae@* will be analyzed based on geometly and material property information <br />provided by Total Fabrications, Inc. The description of the trusses was determined <br />from; (1) fabrication shop drawings of me aluminum components and (2) section end <br />material properties per telephone conversations with Mr. lan Coles of Total <br />Fabricationg, Inc. <br />Load charts will·be developed to show the allowable load capacity of the trussas for <br />uniforrnly dktribut•d. central point, third point and quarter point loads. For the <br />ourposes of this Report, allowable loads will be defined as the loads imposed on the <br />rrusses in excess of their seif weight Ruch as; Weight Of rigging, fittings. holsting <br />equipment fights and Noetrical cable, <br />Our calculetions are based on allowable stresses as defined by the Aluminum <br />Association in 'Specifications for Alumlnum Structures/ Fifth Edition. The maximum <br />bok stresses resulting from our analysis will be compared with allowable stresses as <br />defined by the American Instltute of Steel Construction (AISC) Code. Ninth Edition. <br />For a more complete discussion on the guidelines and recommendations for the use.handling. care and future inspection of truss, the reader is referred to the publicationentitled, -Operating Manual for Modular Aluminum Truss and Tower SectionsDesigned and Fabricated by Total Fabrications, Inc." <br />m IiI 4/1.1-1 <br />1 <br />1-1 6 r. <br />1