PPT-DESIGN OF TRUSS ROOF

Chapter 7 University of Engineering amp Technology Taxila 1 Properties of Trusses Truss is a frame structure in which all the members have axial forces due to the following facts Members are arranged in triangles for stability. FramelessWindows PVC Roof MaterialPlywood Roof DeckingR-38* “RadiantTechnology” InsulationFoam A/C Ducting R-14 Batten Insulation PVC Roof MaterialLaminated End Wallin Slide-Out 4” Exte Floor Truss Floor Truss Wood Roof Truss Metal Floor Truss Metal Truss Bar Joist . This type does not apply to the above rule. Bar Joist . This type does not apply to the above rule. Lightweigh Chapter 7. University of Engineering & Technology, Taxila. 1. Prof Dr Z. A. Siddiqi. LOADS. ON TRUSS ROOF. . All the gravity or vertical loads acting on the building trusses are first calculated in terms of the loads acting per one square meter of the horizontally projected area (plan area) having the units kg/m. Method . v/s . Components . and Cladding Method . for . Truss Uplift Connection Design . for . Wind. Overview. Introduction. ASCE/SEI 7-10. , Minimum Design Loads of Buildings and Other Structures, lists two methods for calculating wind pressures: Main Wind Force Resisting System (MWFRS) and Components & Cladding (C&C). . Trussed Rafters. Trussed Rafters are now used for the overwhelming majority of domestic roofs constructed in the UK,. 1 - Made from timber – the only truly renewable building resource.. 2 - Can use up to 40% less timber than a traditionally formed roof.. Overview. Introduction. Fire retardant treatments (FRT) were developed to be applied to building materials, such as dimension lumber (FRTW) and plywood, to reduce the ability of the wood to fuel a fire. . Objectives. To introduce a truss-structure system. To define truss. To demonstrate the types of trusses . 6 - . 3. Introduction. For the equilibrium of structures . which are . made . up . of several connected parts, the . A body being squeezed. Forces. Compression. Tension. A body being stretched. Truss. A truss is composed of slender members joined together at their end points.. They are usually joined by welds or gusset plates.. Roof Trusses. Trusses . are . triangular frame. works, consisting of . axially . loaded members . They . are . more efficient in resisting external loads. . as the . cross . section of . all the members . University of Engineering & Technology, Taxila. 1. Prof Dr Z. A. Siddiqi. LOADS. ON TRUSS ROOF. . All the gravity or vertical loads acting on the building trusses are first calculated in terms of the loads acting per one square meter of the horizontally projected area (plan area) having the units kg/m. Lay-On Gable Frame Connection Overview Revised 3/22/2017 SBCA  has been the voice of the structural building components industry since 1983, providing educational programs and technical information, disseminating industry news, and facilitating networking opportunities for manufacturers of roof trusses, wall panels and floor trusses. Wite Brite Elastomeric CoatingWite BritePrimerInsulationExisting PVC TPO EPDMModi31ed Bitumen MembraneSR Poly Plus 40Wite BriteElastomeric Coating1380 East Highland Road Macedonia OH 44056 46TaThermal Barrier If requiredRoof Deck or Existing Roof MembraneSecurePly or Cover Board If requiredInsulFoam TYPE I II VIII IX InsulFoam SP or InsulLam153InsulFoam TYPE I II VIII IXThermal Barrier Methods of Analysis. 2. Method of Joints. Method of Sections. The method of joints utilizes the force equations of equilibrium for each joint. . Analysis normally begins at a joint where at least one force is known and not more than two forces are unknown for plane trusses (or not more than three forces are unknown for space trusses).