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<br />U:~~.s.ti9n 9.121 Th,~ r..'l"cvLdons c'f this rHvision ~ha'1 <br /> <br />be appl icable to that porti,on of the Ci t)' of l-{pclwCJod C l' l' <br /> <br />underlain by younger bay mud as indicated on that map T.'fT'- <br /> <br />pared by the Building Department of the City of Redw("IN1 <br /> <br />City entitled "Area of Redwood City Underlain by Young0t Bay <br />Mud", and on file in the office of the City C1f~!'lr. <br /> <br />"Section 9.122 For ono and two story rosidentiill b.li10.. <br /> <br />ings or structures only, all lot grading, soils design, founda- <br /> <br />tion design, and construction design including lateral. force <br /> <br />analysis, shall be in accordance with the recommendations of <br />the "Recommended Foundation Des ign Cri teri a for One dT"ll ')'w(" <br />Story Residences" (dated April 15, 1974) as prepared by <br /> <br />Rutherford and Chekene, ConGulting Structural Engineers ilnd <br /> <br />as approved by the Redwood City Bui Id ing D(~partment, \.-'h ich <br /> <br />document is on file in the office of the City Clerk. <br />NSection 9.123 All structural design shall be in <br />accordance with the Building Code including latera) force <br /> <br />provisions for earthquakes. Structural design for majrr <br /> <br />structures in the longer range period (3/4 of a second or <br /> <br />more) shall use the Dames & ,Hoore "Recommended Base Shedr <br /> <br />Coefficient 'c' for I,ateral Force D~sign", in accordance with <br /> <br />Plate V-l, following page-75A-, 1972 Seismic Adviscry BC'drd <br /> <br />Report for G.I.D. No. 1-64, 'Vlhich report is on fil~ ini'hE <br /> <br />Office of the City Clerk. <br /> <br />"Secti.on q .12.1 FOll!1dati en ~3ystemo sha 11 ("('Insist cf fl'i;)t, <br /> <br />gril1~ piles C'r a ~jml.lr syste'n with \J dcmon::tratc(l ability <br /> <br />to rP.'sist differential :?f'ttlf'mclt and 1-or tyirlJ t'hc f01, ",- <br /> <br />ticn elemente:! togethp.r. 'T'll:! j'inimur', t'ie Ftn~'1'Jtl' ""h;-~l 1 }-'c <br /> <br />at least )0';4: cf th(~ r!rc'1tc",'t 'oa.-i i"l\P"5I,;1 ('n ,I rc'ind,)ti ': '~r <br /> <br />foundation element. <br /> <br />"Section t'J.12S All \1/000 fr3trc bldl'lings :::1'-:1'1. h! '1':'- <br />. <br /> <br />vided with S/16" P':'wc,')d s11(nthing on th....! c>:t:c....iol' ";-r...~I'(' ~n <br /> <br />accordance with thH "D!'2s Lgn Cri teri 3. .. p-re::;cribcrl h~' S~:ct i :)n <br /> <br />9.122 herein unless strLlctllral desig'"l anf'.! (".741C1llatic,ns prc- <br /> <br />scribe lateral force parameters equ:l] to or grc.1ter than <br /> <br />-8- <br />