Page 403 - Advanced Design Examples of Seismic Retrofit of Structures

Example of a Steel Frame Building Retrofitted Chapter 5 361

ENY 1.2×Mean

Under (%) 0.1 0.9 0.2

Ratio

Drift Maximum 0.1 0.7 0.2

1.2×Mean 0.2 0.4 0.3

(%)
Ratio ENX Maximum

Buildings Drift Under 0.2 0.3 0.2

Retrofitted 1.2×Mean 0.1 0.8 0.2

the Drift Ratio Under EPY (%)
of
Ratio Maximum 0.1 0.8 0.2

Drift

Mean EPX 1.2×Mean

and Under (%) 0.2 0.3 0.3
Maximum Ratio Drift Maximum

5.31 building 0.2 0.3 building 0.2
TABLE Story Main 2 1 Sports 1