Special Studies in Building Structure

Pencil Towers and the History and Development of the High-Rise

Bundled Tube

This wsa the natural extension of the "Tube-in-Tube" system. The stiffness and strength of these very tall buildings is generated by all of the "tubes" of the building being "bound" together to act as one big bundle. This is similar to the cellular structure of bamboo or trees.

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© 1996 Chris H. Luebkeman