Page 299 - Advanced Design Examples of Seismic Retrofit of Structures

Example of a Steel Frame Building Retrofitted Chapter
EPY ENY Under Ratio Drift Ratio Drift (%) (%) ENX Under 1.2×Mean Maximum 1.2×Mean Maximum 1.2×Mean 1.0 1.5 0.8 1.0 0.7 5.5 3.0 3.2 1.6 2.3 1.9 3.9 5 289
Under (%) 1.1 0.8 1.6

Ratio

Ratio Drift Maximum 1.4 5.7 2.9

Drift

Mean EPX 1.2×Mean

and Under (%) 1.5 3.1 1.9
Maximum Ratio Drift Maximum

5.5 building 1.0 3.2 building 3.9
TABLE Story Main 2 1 Sports 1