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 Palo Alto
 Municipal Code
 Title 16. BUILDING REGULATIONS*
 Chapter 16.06. CALIFORNIA RESIDENTIAL CODE

  § 16.06.230. Section R403.1.3 Seismic reinforcing.  

Latest version.
  • Section R403.1.3 of the California Residential Code is amended to read:
    R403.1.3 Footing and stem wall reinforcing in Seismic Design Categories D0, D1, and D2. Concrete footings located in Seismic Design Categories D0, D1 and D2, as established in Table R301.2(1), shall have not fewer than three No. 4 horizontal bars. One No. 4 horizontal bar shall be installed within 12 inches (305 mm) of the top of the stem wall and two No. 4 horizontal bars shall be located 3 to 4 inches (76 mm to 102 mm) from the bottom of the footing.
    R403.1.3.1 Concrete stem walls with concrete footings. In Seismic Design Categories D0, D1 and D2 where a construction joint is created between a concrete footing and a stem wall, not fewer than one No. 4 vertical bar shall be installed at not more than 4 feet (1219 mm) on center. The vertical bar shall have a standard hook and extend to the bottom of the footing and shall have support and cover as specified in Section R403.1.3.5.3 and extend not less than 14 inches (357 mm) into the stem wall. Standard hooks shall comply with Section R608.5.4.5. Not fewer than one No. 4 horizontal bar shall be installed within 12 inches (305 mm) of the top of the stem wall an two No. 4 horizontal bars shall be located 3 to 4 inhces (76 mm to 102 mm) from the bottom of the footing.
    R403.1.3.2 Masonry stem walls with concrete footings. In Seismic Design Categories D0, D1 and D2 where a grouted masonry stem wall is supported on a concrete footing, not fewer than one No. 4 vertical bar shall be installed at not more than 4 feet (1219 mm) on center. The vertical bar shall have a standard hook and extend to the bottom of the footing and have support and cover as specified in Section R403.1.3.5.3 and extend not less than 14 inches (357 mm) into the stem wall. Standard hooks shall comply with Section R608.5.4.5. Not fewer than one No. 4 horizontal bar shall be installed within 12 inches (305 mm) of the top of the wall and two No. 4 horizontal bars shall be located 3 to 4 inches (76 mm to 102 mm) from the bottom of the footing. Masonry stem walls shall be solid grouted.
    In Seismic Design Categories D0, D1 and D2 masonry stem walls without solid grout and vertical reinforcing are not permitted.
    (Ord. 5479 § 1 (part), 2019)