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<br />thf,~ "Design Criteria ReCOITlmen:3ations" of SecLcn q.J/~. <br /> <br />"Section 9.J...?~ 'rrclme 0nlj' (space frc.mL-dl.1ctile"'~Qnt <br /> <br />r€\sisting al"\d sp'l',e fra!l1(,>-!roment resisting (1~; per the L1:i '.:U~HT <br /> <br />Code) structures where K = 0.(,7 arc nnt P(~rTT'';ttcd. Sh(y'Y" \-'.111 ::i <br /> <br />or braced frames are required to resist the entire latfY.I' lCd(!. <br /> <br />In buD dings of more than l3 stories ~ moment res i ting dllC' ti J c <br /> <br />frame is requiredr this frame shall be capable r.f rl~5isting <br /> <br />25% of the required lateral load. <br /> <br />"Sect.ion 9.127 Unit Masonry structures (<,:oll('rete l)lock, <br /> <br />brick, unitized pre-cast, pre-s~ressed concrete) are ~ot pcr- <br /> <br />mitted unless the project dcsi(rn engineer can demon:Jtrate, by <br />thorough analysis and/or tests, that the st rcngth und ('h C't i 1 i ty <br /> <br />(including the effects of temperature, foundation settlement, <br /> <br />shrinkage and creep) are equal to that of mon'llithic construc- <br /> <br />ticn. <br /> <br />MSection 9.128 For all structures more than four (4) <br /> <br />stories irrespective of height or which contain more than <br /> <br />20,000 square feet of floor area, the design shall incorporate <br /> <br />sufficient elements of redundancy such that complete failure <br /> <br />of a,ny one bracing element will not reduce the brdcing ('.:1r-.l- <br />city of the stnlctures by more than 75%. <br /> <br />"Section 9.J2c) The design of buildings or structur.\:9 <br /> <br />more than six (6) stories must irrespective of height, be <br /> <br />based on a response spectrum computed for the Bite. 'I'll i ~;; <br /> <br />response spectrum shall be compared with the aver~g,~ spectrum <br /> <br />in accordance with Plate V-I, following pagf~-75A-, 1972 <br /> <br />Seismic Advisory !3oar.'d Report. for G.I.D, i~o. J-64 (on f1 '0 in <br /> <br />the off.ice of the C:i ty Clerk) and the higher v.il llcd ::pect !"1,':" <br /> <br />incorpor.ated in tlw des ign. <br /> <br />"Section 9.130 In addition to the prGViEjn~z specifi2d <br /> <br />by Section 2610 (f) of the Building Code, the !nl'owinJ rcquire- <br />me~ts shall be applicable: <br /> <br />", (a) Minimum Reinforcement of Pley.ura] SectiD:10; At <br />any section of a flexural member (exc.:pt slabs of '.ni.- <br />form thickness) where posit,ive reinforcement i.s rcq~ired <br />by analysis, the ratio p supplied shall not be lc~u <br /> <br />-9- <br />