0432

4 - r1Ar1B L 4 - 0.4062 9000 3r3c 4EI 3 x 0.406 4EI

4 - r3Cr3D L 4 - 0.406 x 1.0 9000 Stiffness factors K2B and K2C for beam 2 are

3r2B 4EI 3 x 0.432 4EI

4 - r2Br2c L 4 - 0.4322 10,000 At joint B, the distribution factors for beams 1 and 2 are

K1B 1.411 x 10-4EI/mm

K1B + K2B 1.413 x 10-4EI/mm + 1.359 x 10-4EI/mm DF2B = 1 - DF1B = 1 - 0.509 = 0.491.

At joint C, the distribution factors for beams 2 and 3 are

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