Page 324 - Advanced Design Examples of Seismic Retrofit of Structures

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312 Advanced Design Examples of Seismic Retrofit of Structures

columns,

[3] Radians CP 11θ y 4θ y 11θ y 4θ y – d 1.2θ y square or
Components Criteria Angle, LS 9θ y 3θ y 9θ y 3θ y 1.2θ y rectangular

Steel Acceptance Rotation Plastic – e For members.

Procedures-Structural Parameters IO 1θ y 0.25θ y 1θ y 0.25θ y 0.25θ y 0.25θ y connecting by delivered

Nonlinear Modeling Ratio Strength Linear interpolation between the values on lines a and b for both flange slenderness (first term) and web slenderness (second term) shall be performed, Linear interpolation between the values on lines a and b for both flange slenderness (first term) and web slenderness (second term) shall be perf

for Residual the
Criteria c 0.6 0.2 0.6 0.2 0.2 0.2 for designed 190.

Acceptance Angle, b 11θ y 6θ y and the lower resulting value shall be used. 11θ y 6θ y and the lower resulting value shall be used. – d 1.5θ y and the lowest resulting value shall be used. be to with 65 controlled. bending. bending. bending.

and Rotation permitted be replace and force of plane of plane of plane
Parameters Plastic Radians a 9θ y 4θ y 9θ y 4θ y – c 1θ y shall frames 110, with 52 considered be the in P/P CL )θ y the in P/P CL )θ y the in P/P CL )θ y

Modeling Action or 418 h p ﬃﬃﬃﬃﬃ F ye 640 ﬃﬃﬃﬃﬃ F ye 300 h p ﬃﬃﬃﬃﬃ F ye 460 ﬃﬃﬃﬃﬃ F ye 260 h p ﬃﬃﬃﬃﬃ F ye 400 ﬃﬃﬃﬃﬃ F ye braced or moment replace b/t, shall P/P CL >0.5 rotation¼11(1 5/3 rotation¼17(1 5/3 rotation¼14(1 5/3

5.12 ﬃﬃﬃﬃﬃ and t w F ye h p ﬃﬃﬃﬃﬃ or t w F ye Columns—flexure a,b and ﬃﬃﬃﬃﬃ t w F ye h p or ﬃﬃﬃﬃﬃ t w F ye For 0.2 P/P CL 0.5 ﬃﬃﬃﬃﬃ and t w F ye h p ﬃﬃﬃﬃﬃ or t w F ye in with b t /2t f with
TABLE Component Beams—flexure 52 b f a: 2t f p 65 b f b: 2t f p c: Other For P/P CL <0.2 52 b f a: 2t f p 65 b f b: 2t f p c: Other b f 52 a: 2t f p b f 65 b: 2t f p c: Other a Columns replace b Columns c Plastic d Plastic e Plastic

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