Ea

The stiffness matrix is written as

Kii K2i

Ki2 K22

2.9.3.2 Flexural Member

The stiffness matrix for the flexural element can be constructed by referring to Figure 2.73. The forces and the corresponding displacements, namely, the moments, the shears, and the corresponding rotations and translations at the ends of the member, are defined in the figure. The matrix equation that relates these forces and displacements can be written in the form

qi

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