4. Review of the 2D stiffness matrix

Direct Stiffness Method - 3D Braced Frames
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Questions and discussion for this lecture live here. Fire away by hitting Reply below :fire:

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Hi Dr Sean, at minute 3: 39, isn’t the downward reaction on the right supposed to be 12EIUyi/L^3?

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Nevermind. You corrected it later in the video. Apologies

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