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15x

001516

2024-08-26

Spring Constants – Restrained Column Head, Elastic Surface Foundation, Neglecting Shear Stiffness

These formulas are used to calculate the spring constants of the stiffness using fictitious columns, assuming an elastic surface foundation for restrained columns without neglecting the shear stiffness.

C_{u X} = \frac{12 \cdot E I_{z}}{h^{3} \cdot A_{head}}

C_{u Y} = \frac{12 \cdot E I_{y}}{h^{3} \cdot A_{head}}

C_{u Z} = \frac{E A}{h \cdot A_{head}}

C_{φ Y} = 3 \cdot \frac{E I_{z}}{A_{head} \cdot h}

C_{φ X} = 3 \cdot \frac{E I_{y}}{A_{head} \cdot h}

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