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C.2 <br />C.2 <br />YYy <br />1 <br />Pb73 <br />I <br />y�IIIILIL.�B�IL� — . <br />'III.:......... c <br />€I�ii�I;ll <br />:III"LiiwLLLL�II =� <br />IIlv�ll <br />i)Il�il�ll �� <br />p rriilliilill <br />p��yltil.11 <br />hliiii�ll $ <br />iiir�ll L <br />Il��ii�ll <br />31111111111111R <br />M1nmm....nL* <br />LLLLI� <br />NOT USED I SCALE:1—T-0.1 6 1 STAIR PLAN LEVEL 5 1 SCALE:11^'=1'-D'I 4 I STAIR PLAN LEVEL 2 1G=^LE:114'=1'D°I 2 1 <br />8.8 8.9 9 <br />1 <br />Ai73 <br />1T-10' <br />= <br />II L <br />MI�-............. ............................................. <br />I <br />=IIIIIIIIIIIIII. <br />II �LLILILLLLLLLL_ <br />IlhiLnLL�II <br />�IIII�II�II' <br />l�i�ll <br />��Illiii�i <br />-411�i1�11 <br />'llll�ll <br />_I� <br />el�i�ll� <br />I�ii® <br />1■1�� <br />I <br />ILLLLLLLLL: <br />STAIR KEYNOTES <br />51 STEELCHPNNELSTRINGER <br />1 PIECE SLIP RESISTAMPRE4AST CONCTREADAND RISER <br />F�] STAIRLANDING'. STAIR CONSTRUCTION <br />2X WOOD STRINGER- REFER TO STRUCTURAL PLANS <br />PLYWOODTREADANDRISER <br />WOOD FRAMED LANDING- REFER TO STRUCTURAL PLANS <br />F�] SLIP -RESISTANT WARNING STRIPE AT TOP APPROACH AND BOTTOM TREAD <br />HANDRAIL-34'MINTOM-MAXABOVETREADNO IINGPERCBC10122. MAXIS <br />PROJECTION INTO REQURED WIDTH PER CBC 1012.8, <br />GUM -4T MIN HIGH RAILING wI OPENINGS SPACED SO A4' SPHERE CANNOT PASS <br />THROUGH <br />S10 $TMRWAY FLOOR NUMBER SIGN (SEE SIGNAGE OWES FOR MORE INFO) <br />511 TACTLE FLOOR DESIGNATION SIGN (SEE SIGNAGE OWSS FOR MORE INFO) <br />SIP TACTILE EXIT SIGN (SEE SIGNAGE OWNS FOR MORE INFO) <br />S13 STANGPIPE-CLASSI <br />S14 ALTERNATINGTREADSTAIR: FREFABRICATEDSTEEL <br />S15 MEM-GATEBARRIER-PERCBC ODS <br />SIB GUAROWALL-4T MIN HIGH <br />S17 SECURINSCREENSYSTEM 1'STEELBARTOPANDBOMMRAILSWITH114'PICKETSAT4" <br />O.C. MOUNTTO FLOORS -AB OR STAIRSTRINGERS PROVIDE 1I4-W., BGAUGE WIRE MESHAS <br />NOTED ON PLAN <br />S18 GARRIERGUARDRAIL 27'H <br />S19 CAST -IN PLACE CONCRETE STAIR <br />SA DASHED ARE INDICAT INO""CLEAR PATH ABOUT STAIR I HANDRAIL, PER 1111111 <br />DASHED ARC INDICATING OE CLEAR PATH ABOUT STAIR I HANDRAIL, PER CBC 1(112 <br />S21 KNOX BOX- SEE BUILDING PLANS <br />SIl NYSTROM ROE HATCH WITH INTEGRALOSHA COMPLNNTPLUMINUM SAFETY RAILS(POSGERCOAT <br />SAFETY YELLOW) -SEE STAIR ROOF LEVEL FOR OPENING SIZE <br />523 PER CBC SEC,1011.6 THE DOOR AT MY POSITION SHALL NOT REDUCE THE REQUIRED STAIR <br />LANDING DIMENSION TO LESS THAN ONE HALF ITS REQUIRED WIDTH, -CLEAR SPACE IS SHOWN ON <br />PLAN WITH DASHED ARE. <br />STAIR NOTES I <br />1. FOR TYPICAL STAIR DETAILS, REFER TO PD71 <br />2. TREADS', ALL TREAD SURFACES SHALL BE SUP RESISTANT, TREADS SHALL HAVE EM00 <br />ROUNDED OR CHAMFERED EXPOSED EDGES AND NO ABRUPT EDGES AT THE NOSING, <br />3. TREAD AND RISER DIMENSIONAL UNIFORMITY'. STAIRTREADSANGRISERESHALLBEOF <br />UNIFORM SIZE PND SHAPE, THE TOLERANCE BETWEEN THE LARGEST AND SMALLEST RISER <br />HEIGHT OR BETWEEN THE LARGEST AND SMALLEST TREAD DEPTH SHALL NOT EXCEED <br />0.375INCH IN MY FLIGHT OF STAIRS. <br />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 EXCEED0 INCH. RISERS SEA-1- <br />BE SOLID AND VERTICAL OR SLOPED FROM THE UNDERSIDE OF THE LEADING EDGE OF THE <br />TREAD ABOVE 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 />BEYOND THE 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. HANCRAILCENIINUITY'. HANCRAILGRIPPING SURFACES SHALL BE CCNTINUOUS,WITHOUT <br />6 HANDRAILEXTENSIONS'. HANDRAILSSHALLRETURNTOTHEWALL, GUAROORTHEWALKING <br />SURFACE OR SHALL BE CONTINUOUS TO THE HANGRAIL OF AN ADJACENT STAIR FLIGHT. AT <br />STAIRWAYS WHERE HANDRAILS ARE NOT CONTINUOUS BETWEEN FLIGHTS, THE HANDRAILS <br />SHALL E%TEND 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 />IANDINGT0 LANDING, THE INNER RAIL SHALLBE CONTINUOUS AND NEED NOT EXTEND OUT <br />INTO THE LANDING. <br />7. EXIT ENCLOSUREPENETRATIONS: 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 />B. 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 />WIDEPPA DPARALLELTO,ANDNOTMORET N1INCHFROM,THENOSEOFTHESTEP <br />ORUPPERAPPROACH. THE STRIPE SHALL EXTEND THE FULLWIDTH OF THE STEP OR <br />UPPER APPROACH AND SHALL BE OF MATERIAL THAT IS AT LEAST AS SLI PREE ISTANT AS <br />THE OTHERTREAGS OF THE STAIR. APNNTEO STRIPE SHALL BEACCEPTABLE, <br />9. ALLDIMENSIONSARETOTHEFACEESTUD,CMUORCONCRLIEASOCCURS,U.N.0. <br />LEGEND <br />K" i� STANDPIPE <br />0 2X4 WOOD STUD FRAMING <br />® 2X8 WOOD STUD FRAMING <br />® GNU WALL -SEE STRUCTURAL <br />CONCRETE WALL -SEE STRUCTURAL <br />EXTENT OF EXTERIOR CEMENT PIASTER FINISH <br />DAGOAL HATEN INDICATES EXTENT OF <br />K)R PEASTER SOFFIT OR <br />IFFTT <br />HEIGffN INDCATEDIINCRUPPREG P. SO. CELIPL .EWM RIORKILDTECEMRE PEV EROVEREXTR� ED <br />METAL LATH OCCURSAT LOBBIES WRH EXTERIOR WALL EENINGS SEE <br />ENLARGED PLANS FOR EXTENT. <br />VUP CLEAR FLOOR AREA <br />11 DIAMEER TO RN AROUND SPACE <br />ENLARGED PLAN REFERENCES <br />I. FOR WALL FIRE RATINGS AND DETAIL REFERENCES, FIRE EXTINGUISHER <br />LOCATIONS AND FIRE ACCESS ANALYSIS, SEE SHEETS APII THRU A425. <br />2. FOREXITING ANALYSIS INCLUDING OCCUPANT LOADS, EXIT SIGNS AND DOOR PANIC <br />HARDWARE LOCATIONS, SEE SHEETS A 31 THRU AU45. <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 />Ln OAl <br />4199 CAMPUS DRIVE <br />IRVINE, CA 92612 <br />PHONE NO. (714) 342-2502 <br />SLLI <br />ry <br />50 <br />L <br />Z <br />2 <br />C <br />N <br />0) <br />U <br />Q <br />Q <br />H <br />Z <br />U) <br />Lu <br />Lu <br />H <br />ui <br />�a <br />I —J <br />No. Date Description CH <br />G <br />m <br />Ln <br />Y <br />U <br />W <br />2 <br />U <br />D_ <br />U) <br />`aSED ARL•yAT Ll <br />g�R w°c`rs N <br />y3 N <br />* x CN795 * O <br />r n. <br />2.1 <br />9Tf NR CA01�P?P <br />License Stamp o <br />STAIR A2 ENLARGED <br />PLANS <br />STAIR PLAN ROOF LEVEL SCA E:IJ =1•-D• <br />STAIR PLAN LEVEL 3, 4 I SCALE: <br />STAIR PLAN LEVEL 1 1 SCALE: 1-1- <br />A5-72 <br />