Abstract
Robust and efficient hybrid stress hexahedral elements capable of handling beam/plate/shell structures have recently been proposed. A major advantage of using the solid elements for tall building analysis is that rotational degrees of freedom are not required to describe the deformation of the structure. No special effort, if possible at all, would be needed in matching the translational and rotational degrees of freedom when structures are inevitably modeled by a combination of beam, plate, and shell elements. In this chapter, the feasibility and the effectiveness of applying these hybrid stress hexahedral elements to general three-dimensional spatial frame structures are investigated. Numerical results as compared to those obtained from the classic beam theory are also discussed.
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