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o o <br />riot Struclural Enginee rs . 711 Ny'ission Street, Suite D, Soulh Pasadena, California 91030 (818) 799-8269, (213) 682-2871 <br />John Kanolrs. Presrdenl. S.E <br />Nels Roselund, Vrce President, S E <br />Mrchael Krakower. S E. <br />(lty <br />0r ,,,:rr:',;,l,lq <br />iune 18i 1985 <br />Robert J. Tyl er <br />Plan Check Coordi netor <br />Eity of Santr Ana <br />E0 Civic Center Flaza <br />P, O. Box 1988 <br />Santa Ana, CA 9270? <br />RE: Seismic plans for 90? North liain, Santa Aha' California <br />(Kathleen Tiernan Markham) <br />Dear ilr. Ty I er: <br />[,Je are replying to your letter of llay 9, 1985 reqarding the referenced <br />building, ih which you requested that plans and elevationE be prepared, <br />and an anrlysis of the buildihg be submitted to your department. <br />nlthough the building iE technically under the Jurisdication of the <br />Santa Ana Seismic Safety ordinancei extensive reconstruction was done <br />after a fire in late 1961. (See our attached letter of July 23, 1984, <br />which dcscri bes the Hork done), This reconstruct ion was intended to <br />reduce the hazard of the unreinforced m.sonry xalls? which is egEen- <br />tially the qoal of the current ordinanee. <br />Since the buildinq undGprent Etrengthening work, xith a permit from the <br />City of Santa Ana, it scems unrea5onable and unheeessrry to require the <br />orher to do similar strengthening work at a later date. <br />The drarinqB rre have sub, itted provide details to correct the anchoraqe <br />of the ralls to the roof diaphragm. The methods uled |{ere typical fer <br />1961, but are now knosn to be inadequate. The details $e have desiqned <br />are intended to correct the deficiencies of the 1961 anchoraqes. <br />1