Lecture+Notes - 1 Introduction to Building Structures and Basic Structural Elements Multistory(Office Buildings Structural Elements beams columns

Lecture+Notes - 1 Introduction to Building Structures and...

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1 Introduction to Building Structures and Basic Structural Elements Multistory (Office) Buildings Structural Elements : beams, columns, connections, floor systems, bracings, … (Ref: Aghayere and Vigil, Structural Steel Design A Practice Oriented Approach, Pearson, 2015)
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3 Industrial Building Basic Elements : Columns, roof truss, chord members, roofing, purlins, sag rods, bracings, …. Bent Bay Sag rod Purlin Roof truss Lateral bracing Side wall End wall bracing Side wall Roof bracing
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4 Typical Layout : Plan and Elevation Views Bay Bottom chord bracing Side wall End bent Bent Roof truss Column Bracing Span Industrial buildings usually cover large area with open space and large span Bents span about 50 to 200 feet (or more) and space about 15 to 50 feet apart Roof Truss : Lower chord, upper chord and diagonal (cross) members Members are usually presumed to be subjected to tension or compression Typical truss joint
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5 Roofing : Purlins and roof covering (plasters) Truss Purlin Sag rod Sag rod Top chord Roof Purlin Bracing Systems : Part of the structural system for stability and to resist lateral loads Transverse Bracing : Bracing on lower and upper chords to distribute lateral loads Bracing on end bents to resist lateral loads Longitudinal Bracing : Bracing on lower and upper chords to distribute lateral loads Bracing on side walls to resist lateral loads
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6 Rigid Bent : Transfer moments at knees (rigid joints) Foundation Supports and Connections Fixed end :
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  • Spring '14
  • GregoryG.Deierlein
  • Tensile strength, roof truss, lateral loads, strength low alloy

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