flexural deformation of the frame, which is a function of the area of the column and the ratio of the height to bay length (h/L). For a slender bracing frame with large h/L ratio, the flexural component can contribute significantly to the overall story drift.

Low-rise braced frame deflects predominately in shear mode while high-rise braced frames tend to deflect more in flexural mode. Design Considerations

Frames with braces connecting columns may obstruct locations of access openings such as windows and doors, and so they should be placed where such access is not required, for example, around elevators, service, and stair wells. The location of the bracing systems within the structure will influence the efficiency with which the lateral forces can be resisted. The most appropriate position for the bracing systems is at the periphery of the building (Figure 22.28a) since this arrangement provides greater

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