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Column Design Axial Tension Axial Compression

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Presentation on theme: "Column Design Axial Tension Axial Compression"— Presentation transcript:

1 Column Design Axial Tension Axial Compression
net area due to connection Axial Compression column stability Combined Bending and Tension Combined Bending and Compression

2 Net Area - Nail Hole: discarded
- Bolt Hole: (bolt d + 1/16)*member width ← stress calculation - Lag Bolt Hole: Appendix L Split Ring and Shear Plate: Appendix K

3 Connections Shear Plate Split Ring

4 Tension Example No. 1 S-P-F (South) D+S ¾ in diameter bolt MC < 19%
size 2*6 Analyze this chord psi

5 Compression - Length is Important : Short vs. Long
1. Away from supports 2. At the connection (short col)

6 Calculate CP Evaluating le Slenderness Ratio Calculating FcE
Calculating CP

7 Effective Length, le

8 Sidesway Lateral flexibility at the top

9 Slenderness Ratio General Equation Rectangular Section

10 CP Example No. 1 DF-L D+Lr - MC < 19% - Normal temperature
- size 4*6 - l = 10 ft - visually graded


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