CEN210_Chp01.pdf - Chapter 1 Types of Structures and Loads Dr Talal SALEM FE\/DCEE 1-1 Introduction Structure refers to a system of connected parts used

CEN210_Chp01.pdf - Chapter 1 Types of Structures and Loads...

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Chapter 1: Types of Structures and Loads Dr. Talal SALEM FE/DCEE
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 2 1-1 Introduction Structure refers to a system of connected parts used to support a load Factors to consider when designinga structure: Safety Esthetics Serviceability Economic & environmental constraints. Preliminary design of a structure must be analyzedto ensure that it has required strength and rigidity.
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 3 1-1 Introduction To analyze a structure properly, idealizations must be made as to: How are the members supported; How are the members connected together. Loadings are determined from codes and local specifications. Forces in members and displacements are found from structural analysis.
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 4 1-2 Classification of Structures Structural Elements: Tie Rods (Bracing Struts): Slender members subjected to a tensile force; Beams: Straight horizontal members used to carry vertical loads; (“tapered” when cross section varies)
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 5 1-2 Classification of Structures Tie Rods Braces
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 6 1-2 Classification of Structures Steel Beams Beam Girder Joist
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 7 1-2 Classification of Structures Structural Elements: Columns: Vertical members used to resist axial compressive loads. Tubes and wide-flange cross sections for metal columns, Circular and square cross-sections with reinforcing bars for concrete columns.
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 8 1-2 Classification of Structures Steel Columns Concrete Columns
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 9 1-2 Classification of Structures Types of Structures: Trusses: Assembly of longand slenderelements, used when span is large and depth is not an important criterion. Planar trusses: bridge, roof support; Spatial trusses: derricks, towers.
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 10 1-2 Classification of Structures Trusses
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 11 1-2 Classification of Structures Types of Structures: Cables & Arches: Also used to span long distances. Cables: flexible, carry their loads in tension; Arches: achieve strength in compression, shear and moment must be considered in their design.
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 12 1-2 Classification of Structures Arches in Nanning bridge Fan cable-stayed bridge
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Chapter 1: Types of Structure and Loads CEN 210: Structures I 13 1-2 Classification of Structures Types of Structures:Frames: Often used in buildings.
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