SHEAR WALL WITH OUTRIGGER TRUSSES ON WALL AND COLUMN FOUNDATIONS

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SHEAR WALL WITH OUTRIGGER TRUSSES ON WALL AND COLUMN FOUNDATIONS

Author: J. C. D. HOENDERKAMP | Size: 169 KB | Format: PDF | Quality: Unspecified | Publisher: J. C. D. HOENDERKAMP | Year: 2004 | pages: 15

A graphical method of analysis is presented for preliminary design of outrigger truss-braced high-rise shear wall
structures with non-fixed foundation conditions subject to horizontal loading. The method requires the calculation
of six structural parameters: bending stiffness for the shear wall, bending and racking shear stiffnesses for
the outrigger, an overall bending stiffness contribution from the exterior columns, and rotational stiffnesses for
the shear wall and column foundations.
The method of analysis employs a simple procedure for obtaining the optimum location of the outrigger up
the height of the structure and a rapid assessment of the influence of the individual structural elements on the
lateral deflections and bending moments of the high-rise structure. It is concluded that all six stiffnesses should
be included in the preliminary analysis of a proposed tall building structure as the optimum location of the outrigger
as well as the reductions in horizontal deformations and internal forces in the structure can be significantly
influenced by all the structural components.

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