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STAIR KEYNOTES <br />51 STEELCHPNNELSTRINGER <br />1 PIECE SLIP RESISTANT P—ST CONC TREAD AND RISER <br />STAIRLANDING'. STAIR CONSTRUCTION <br />2XWOODSTRINGER-REFERTOSTRUCTURALFLAN8 <br />PLYWOODTREADANDRISER <br />WOOD FRAMED LANDING- REFER TO STRUCTURAL PLANS <br />SLIP -RESISTANT WARNING STRIPE AT TOP APPROACH AND BOTTOM TREAD <br />HANDRAIL-34'MINT0M-MAXABOVEMWNOSINGPERCBC1012.2. MAX.- <br />PROJECTION INTO REOUREDWIDTH PER CBC1012.6, <br />GUARD-4P MIN HIGH RAILING wI OPENINGS SPACED SO A4' SPHERE CANNOT PASS <br />THROUGH <br />510 STAIRWAY FLOOR NUMBER SIGN (SEE SIGNAGE UWGS FOR MORE INFO) <br />511 TACTILE FLOOR DESIGNATION SIGN (SEE SIGNAGE DWGS FOR MORE INFO) <br />SI2 TACTILE EXIT SIGN (SEE SIGNAGE DWGS FOR MORE INFO) <br />S13 STANDPIPE-CLASSI <br />S14 ALTERNATINGTREAD—IIR: FREFABRICATEDSTEEL <br />S15 METAL GATE BARRIER -PER CBC 10238 <br />S15 GUARDWALL-42'MIN HIGH <br />SECURITYSCREENSYSTEM 1'SIEELBARTOPANDBOMMRAILSWITi114'PICKETSAT4- <br />O.C. MOUNTTO FLOORSLAB OR STAIRSTRINGERS PROVIDE 114-W., BG5UGE WIRE MEMAS <br />NOTED ON PUN <br />S18 BARIERGUARDRAIL 27-H <br />S19 CAST -IN PUCECONCRETESTAIR <br />SA DASHEDARC INDICATIN— CLEAR PATHABOUT STAIRI HANDRAIL, PER CEO 10112 <br />DASHEDARC INDICATING48' CLEAR PATH ABOUT STAIRI HANDRAIL, PER CEO 10112 <br />S21 KNOX BOX -SEE BUILDING PUNS <br />SIl NYSTROM ROE HATCH WITH INTEGRALOSHA COMPLNNTALUMINUM SAFETY MIILS(POWDERCOAT <br />SAFETY YELLOW) -SEE STAIR ROOF LEVEL FOR OPENING SIZE <br />523 PER CEO SEC,1011.6 THE DOOR AT MY POSITION SHALL NOT REDUCE THE REGO—STAIR <br />LANDING DIMENSION TO LESS THAN ONE HALF ITS REOUIMD WIDTH, -CLEAR SPACE IS SHOWN ON <br />PUN WITH DASHED ARC. <br />STAIR NOTES <br />1. FOR TYPICAL STAIR DETAILS, REFER TO <br />M71 <br />2. TREADS', ALL TREAD SURFACES SHALL BE SUP RESISTANT, TREADS SHALL HAVESM00 <br />ROUNDED OR CHAMFERED EXPOSED EDGES AND NO ABRUPT EDGES AT THE NOSING, <br />3. TREAD AND RISER DIMENSIONAL UNIFORMITY'. STAIRTREADSANDRISERESHALLBEE <br />UNIFORM SIZE AND SHAPE, THE TOLERANCE BETWEEN THE IARGEST AND SMALLEST RISER <br />HEIGHT OR BETWEEN THE URGEST AND SMALLEST TREAD DEPTH SHALL NOT EXCEED <br />0.375INCH IN MY FLIGHT OF STAIRS. <br />T.— 4. TREAD PROFILE: THE RADIUS OF THE LEADING EDGE OF THE TREAD SHALL BE NOT <br />GREATER THAN 0.5INCH. BEVELING OF NOSING SHALL NOT EXCEED B5 INCH. RISERS SHALL <br />BE SOLID AND VERTICAL OR SLOPED FROM THE UNDERSIDE OF THE LEADING EDGE OF THE <br />TRSAD MOVE AT AN ANGLE NOT MORE THAN 30 DEGREES FROM THE VERTICAL. THE <br />LEADING EDGE(NOSING) OF TREADS SHALL PROJECT NOT MORE THAN 125 INCHES <br />BEYONDTHE TREAD BELOW AND ALL PROJECTIONS OF THE LEADING EDGES SHALL BE OF <br />UNIFORM SIZE, INCLUDING THE LEADING EDGE OF THE FLOOR AT THE TOP OF FLIGHT. <br />5. HANCRAILCONTINUITY'. HANCRAILGRIPPING SURFACES SHALL BE CONTINUOUS,WITHOUT <br />_ STH FL_SUBFLOOR <br />_ ___ T.O.PL <br />_ 4TH FL SUBFLOOR <br />T.O. PL <br />3RD FL SUBFLOOR <br />2ND FL SUBFLOOR <br />T.O.PL. <br />_ 1ST FL T.O. SLAB ON GRADE <br />6. HANDRAILEXTENSIONS'. HANDRAILSSHALLRETURNTOTHEWALL, GUARDORTHEWALKING <br />SURFACE OR SHALL BE CONTINUOUS TO THE HANDRAIL OF AN ADJACENT STAIR FLIGHT. AT <br />STAIRWAYS WHERE HANDRAILS ARE NOT CONTINUOUS BETWEEN FUGHTS, THE HANDRAILS <br />SHALL EXTEND AT LEAST 12INCHES BEYOND THE TOP RISER AND 12INCHES, PLUS THE <br />TREAD WIDTH, BEYOND THE BOTTOM RISER. WHERE THE STAIRS ARE CONTINUOUS FROM <br />UNDINGT0 UNDING, THE INNER RAIL SHALLBE CONTINUOUS AND NEED NOT EXTEND OUT <br />INTO THE LANDING, <br />7. EXIT ENCLOSUREPCNETRATIONS: PENETRATIONS INTO AND OPENINGS THROUGH AN EXIT <br />ENCLOSURE PRE PROHIBITED EXCEPT FOR REQUIRED EXIT DOORS, SPRINKLER PIPING, <br />STANDPIPES. ELECTRICAL RACEWAY(S) FOR FIRE DEPARTMENT COMMUNICATION SYSTEMS <br />AND ELECTRICAL RACEWAYUU SERVING THE EXIT ENCLOSURE. THERE SHALL BE NO <br />PENETRATIONS OR COMMUNICATION OPENINGS, WHETHER PROTECTED OR NOT, BETWEEN <br />ADJACENT' EXIT ENCLOSURES. <br />8. STRIPING FOR THE VISUALLY IMPAIRED'. INTERIOR EXIT STAIRWAYS SHALL HAVE THE UPPER <br />TREADS, THE STRIPE SHALL BE A MINIMUM OF 21NCHE5 WIDE TO A MAXIMUM OF 41NCHES <br />WIDEPLIEDPARALLELTO,MDNOTMOREMNIINCHFROM,i ENOSEOFTHESTEP <br />ORUPPCRAPPROACH. THE STRIPE SHALL EXTEND THE FULLWIDTH OF THE STEP OR <br />UPPER APPROACH AND SHALL BE OF MATERIAL THAT IS AT LEAST AS SLI PRESISTANT AS <br />THE OTHERTREADS OF THE GTMR. APNNTEO STRIPE SHALL BEACCEPTABLE, <br />9. ALLDIMENSIONSARETOTHEFACEESTUD,CMUORCONCREEASOCCURS,U.N.0. <br />LEGEND <br />K" i� STANDPIPE <br />O 2X4 WOOD SILO FRAMING <br />® 2X6 WOOD STUD FRAMING <br />® CMU WALL -SEE STRUCTURAL <br />0 CONCRETE WALL -SEE STRUCTURAL <br />EXTEND OF EXTERIOR CEMENT PIASTER FINISH <br />DACONAL HATCH INDICATES EXTENT OF <br />HEIGHT AS INDICATEDINPUN. EXTERISELLOW OR EXTERIOR <br />PCRICEIJS ER OVER EXI ASSEMBLYTR� ED <br />METAL UTH OCCURSAT LOBBIES WTO( EXTERIOR WALL EENINGS SEE <br />ENLARGED PLANS FOR EXTENT. <br />VNP CLEAR FLOOR AREA <br />5.1 DIAMETER TO RN AROUND SPACE <br />ENLARGED PLAN REFERENCES <br />1. FOR WALL FIRE RATINGS AND DETAIL REFERENCES, FIRE EXTINGUISHER <br />LOCATIONS AND FIRE ACCESS ANALYSIS, SEE SHEETS ADII THRU A425. <br />2. FOREXITING ANALYSIS INCLUDING OCCUPANT LOADS. EXIT SIGNS AND DOOR PANIC <br />HARDWARE LOCAT)NS, SEE SHEETS A 31 THRU AP45. <br />Architecture + Planning <br />17911 Von Karman Ave. <br />Suite 200 <br />Irvine, CA 92614 <br />ktgy.com <br />949.851.2133 <br />KTGY Project No: 2017-0934 <br />Project Contact: Debbie Holland <br />Email: dholland@ktgy.com <br />Principal: Wil Wong <br />Project Designer: D. Schoolmeester <br />Project Director: Debbie Holland <br />Developer <br />11 D U A L <br />4199 CAMPUS DRIVE <br />IRVINE, CA 92612 <br />PHONE NO. (714) 342-2502 <br />O <br />CNJ <br />0) <br />U <br />Q <br />Z <br />Q <br />Q <br />H <br />Z <br />h <br />L <br />W <br />F- <br />h <br />_ <br />H <br />11, <br />lL7 <br />lC) <br />06 <br />Lo <br />I _J <br />No. Date Description cH <br />L <br />M <br />U) <br />Y <br />U <br />W <br />U <br />z <br />`�aSED ARL,, LL <br />g�R w°c`rs N <br />y3 N <br />* Na CM795 * O <br />RENEWAL DATE (V <br />r arsT 11. <br />9Tf OF CA01�P?P <br />License Stamp CD <br />STAIR 131 SECTION <br />STAIR SECTION I SCALE: 1-=1'-0' <br />A5-79 <br />