Apply Gruzman method to compute the effective width of slabs for lateral load resistance, using CD factor, drift limits, and column geometry; compare with Gang and Dweller's method.

Use the Kang & Wallace method to compute effective width for flat-slab systems from shake-table data, with alpha 2.75, beta about 2.3, and Z strip tied to center-line spacing.

Explore how coupled shear walls joined by a pendrel beam restrain cantilever bending and make two walls act as one unit in high-rise buildings.

Explore the DeGroot diagonal grid lateral system, which removes vertical columns to create a diamond façade; first used in the 1965 IBM building and revived in the early 2000s.

Examine how a diagrid's diagonals and ring beams form triangles that carry wind and seismic loads via axial compression and tension, with node connections and diagonal inclination shaping load distribution.

Use belt walls with outriggers to create a restoring moment that reduces core moment and displacement, and if possible, integrate external built beams or trusses to restrain the perimeter columns.

Explore the braced tube system as the first modification to overcome shear lag and reduce axial stresses on columns, increasing spacing and enabling taller buildings up to 100 floors.

Analyze the effects of relative column shortening in a high-rise with a central core, illustrating the umbrella shape, impacts on slabs and outriggers, and cracks and deformations.