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3. Moment- 1. Special moment-resisting frame <br />resisting frame (SMRF) <br />system a. Steel 8.5 2.8 N.L. <br /> b. Concrete4 8.5 2.8 N.L. <br /> 2. Masonry moment-resisting wall frame 6.5 2.8 160 <br /> (MMRWF) <br /> 3. Intermediate moment-resisting frame <br /> (IMRF) <br /> a. Steel~ 4.5 2.8 35~ <br /> b. Concrete5 5. 5 2.8 3 <br /> 4. Ordinary moment-resisting frame <br /> (OMRF) <br /> a. Steel~ 3.5 2,8 ~ <br /> b. Concrete~ 3.5 2.8 ~ <br /> 5. Special truss moment frames of steel 6.5 2.8 240 <br /> (STMF) <br />4. Dual systems 1. Shear walls <br /> a. Concrete with SMRF 8.5 2.8 NL. <br /> b, Concrete with steel OMRF (Not - <br /> Permitted) <br /> c. Concrete with concrete IMRF 5 6.5 2.8 ~ <br /> d. Masonry with SMRF 5.5 2,8 160 <br /> e. Masonry with steel OMRF (Not - <br /> Permitted) <br /> f. Masonry with concrete IMRF 3 4.2 2.8 3 <br /> g. Masonry with masonry MMRWF 6.0 2.8 160 <br /> 2. Steel EBF <br /> a. With steel SMRF 8.5 2.8 N.L <br /> b. With steel OMRF (Not Permitted)~ - <br /> 3. Ordinary braced frames (Not <br /> PermittedJ <br /> 4. Special concentrically braced frames <br /> a. Steel with steel SMRF 7.5 2.8 N.L. <br /> b. Steel with steel OMRF (Not - <br /> Permitted~ <br /> 5, Steel IMRF (Not permittedZ <br />5. Cantilevered 1. Cantilevered column elements 2.2 2.0 357 <br />column <br />buildin~l systems <br />6. Shear wall- 1. Concrete~ 5.5 2.8 160 <br />frame <br />interaction <br />systems <br />7. Undefined See Section 1629.6.7 and 1629.9.2 <br />systems <br />N.L.- no limit <br />I See Section 1630.4 for combination of structural systems. <br />2 Basic structural systems are defined in Section 1629.6. <br /> <br />Atty/O rd/Ord. 167 <br />102402 12 <br /> <br /> 2241 <br /> <br /> <br />