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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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Tension members are found in:
Bridge trusses, Roof trusses, Towers, Bracing systems As tie rods Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 2
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Types of Tension Members
Circular Rods One of the simplest of tension members Difficult to connect to many structures Single Angles ( used in roof trusses) Double angles Tees (used in welded trusses) Channels (Bridges and large roof trusses) W sections (Bridges and large roof trusses) Built up from plates and rolled shapes ( to have sufficient cross-sectional area and rigidity) Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 3
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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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Members consisting of more than one section need to be tied together.
Tie plates or tie bars are used to tie them Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 5
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Steel cables are tension members
in suspension bridges as roof supports Strength of about 200,00 to 250,000 psi Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 6
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AISC Specification (D2) Nominal Strength of a tension member Pn
Gross section AISC Specification (D2) Nominal Strength of a tension member Pn Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 7
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Nominal Strength of a tension member Pn
Net section Bolt holes = D + 1/8 Nominal Strength of a tension member Pn Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 8
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Net Area Calculations Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 9
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Avoid eccentricities Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 10
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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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Quantity added for inclined lines
Empirical equation, AISCS (B4.3b) 𝑠 2 4𝑔 S is the pitch (distance c-t-c parallel to Tension) g is the gage (distanc c-t-c perpendicular to Tension) Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International 12
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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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Structural Steel Design, Fifth Edition, McCormac and Csernak, 2012 (International
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