Chapter 4

Design of Tension Members

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Selection of Sections

• Loads to be carried• Compactness• Fit with other members• Maximum connectability

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Bolted connection probable section:

• Angles• Channels• W or S sections

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Welded connection probable section:

• Plates• Channels• Structural Tees

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Code requirements to be checked

Additional Code Requirement

• AISCS D.1 : L / r < 300 – Ratio of unsupported length to least radius of

gyration– Enough stiffness to control deflection and

vibration– Not for rods

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Design process: (trial-and-error)

1. Estimate required area2. Select a section from the AISCM Aprovided

3. Check the section's strength4. May try a slightly larger or slightly smaller

section as required5. Repeat the checking process

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• Consider , then• Gross area required: minimum of

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ASD Approach

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