05-1333(2)-014NOTE:
1). 516NED d SEALED CALCULATIONS AND
SHOP DWGS FOR STAIRS $ RAILINGS SHALL BE
PROVIDED BY MANUFACTURER.
2). RAILING 5HALL SUSTAIN A 50 PLF HORIZONTAL
LOAD APPLIED IN ANY DIRECTION AT THE TOP
THE RAILING.
TREAD SLOPE SHALL NOT EXCEED 1/4" PER
RAILINGS, STAIR RAILINGS AND OTHER SIMILAR SAFEGUARDS SHALL BE DESIGNED TO
FOOT SEE N.F.P.A. 5 -2.2.2
RF-515T A LOAD OF 50 L55. PER LINEAR FOOT APPLIED IN ANY DIRECTION AT THE
TOP OF SUCH BARRIERS
STAIRS AND INTERMEDIATE LANDINGS SALL
CONTINUE WITH NO DEGREASE IN WIDTH ALONG
INTERMEDIATE RAILS, BALUSTERS, PICKETS, AND OTHERS FILLERS SHALL BE CAPABLE OF
THE DIRECTION OF EGRE55 TRAVEL SEE
RE515TING A UNIFORM HORIZONTAL LOAD OVER THE GROSS AREA OF NOT LESS THAN
N.F.P.A. 101 SECT. 5- 2.2.3.3
25 L55. PER 50UARE FOOT, WITHOUT RESTRICTION BY DEFLECTION, BUT OF NOT LE55
REQUIRED 6UARD5 AND HANDRAILS SHALL
5TRENGTH THAN REQUIRED TO RESIST APPLICABLE WIND LOADS ASSET FORTH HEREIN.
CONTINUE FOR THE FULL LENGTH OF EACH
THE MAIN SUPPORTING MEMBERS OF SUCH VERTICAL BARRIERS SHALL BE DESIGNED
FLIGHT OF STAIRS. AT TURNS OF STAIRS, INSIDE
AND CONSTRUCTED TO RESIST THE FORGES 5ET FORTH IN PARAGRAPH (A) AND (B)
HANDRAILS SHALL BE GONTINUO5 BETWEEN
HEREIN WHICHEVER 15 MORE CRITICAL BUT THE REACTION OF 51JGH FORGES NEED
FLIGHTS AT LANDINGS 5EE N.F.P.A. 101 SFGT.
W
5- 2.2.4.3
NOT BE ADDITIVE
HANDRAILS SHALL BE DESIGNED AND CONSTRUCTED TO RESIST A LOAD OF NOT LESS
THAN 200 L55. APPLIED IN ANY DIRECTION AND AT ANY POINT ON THE RAIL. HANDRAIL5
THERE SHALL BE NO VARIATION EXCEEDING
SHALL BE PRODUCT CONTROL APPROVED.
3116" IN DEPTH OF ADJACENT TREADS OR
RISER HOT. SHALL BE MEASURED AS THE VERTICAL DISTANCE BETWEEN
IN THE HOT. OF ADJACENT RISERS, AND THE
TREAD NO51NG5. TREAD DEPTH SHALL BE MEASURED HORIZONTALLY
TOLERANCE BETWEEN THE LARGEST AND
BETWEEN VERTIGAL PLANES OF THE FOREMOST PROJECTION OF ADJACENT
SMALLEST RISER OR BETWEEN THE LARGEST
TREADS AND AT A RIGHT ANGLE TO THE TREAD'S LEADING EDGE, BUT
AND SMALLEST TREAD SHALL NOT EXCEED
SHALL NOT INCLUDE BEVELED OR ROUNDED TREAD SURFACES THAT
3/S" IN ANY FLIGHT SEE N.F.P.A. 101 SECT 5- 2.2.2.4
SLOPE MORE THAN 20 DEOREE5. AT TREAD N051N05, SUCH BEVELING OR
I
ROUNDING SHALL NOT EXCEED 1/2" IN HORIZONTAL DIMENSION. SEE- N.F.P.A.
101 SECT. 5- 2.2.2.3
O
HANDRAIL5 5HALL BE RETURNED TO WALL OR FLOOR OR
�
HAVE A NEWELL F05T AS PER N.F.P.A. 5- 2.2.4.5
STAIR SECTION
1/211.
I -HR FIRE- RE515TIVE:
(FBG- TAE3LE 101.2.1.4B)
5/8" TYPE "X" GWB=
U5E 2 LAYERS OF 5/5" TYPE "X" 6WB=
31-4-
4TREAD3a10'E
-3.-If
HANDRAILS ON STAIRS SHALL BE NOT LESS THAN 34" NOR
MORE THAN 38" ABOVE THE SURFACE OF TH TREAD,
MEASURED VERTICALLY TO THE TOP OF THE RAIL FROM THE
LEADING EDGE OF THE TREAD.
EXCEPTION No I TO (A) REQUIRED HANDRAILS THAT FORM
PART OF A GUARD SHALL BE PERMITTED TG HAVE A
MAXIMUM HOT. OF 42" MEASURED VERTICAL -r' TO THE TOP OF
THE RAIL FROM THE LEADING EDGE OF THE TREAD SEE
N.F.P.A. 101 SECT. 5- 22.45(a)
NEW HANDRAILS SHALL PROVIDE A CLEARANCE OF AT LEAST
1 1/2" BETWEEN THE HANDRAIL AND THE nIL TO WHICH IT 15
FASTENED
HAND RAIL5 SHALL HAVE A GIROULAR OR0515 SECTION WITH
AN OUTSIDE DIAMETER OF AT LEAST I I/4 "AND NOT GREATER
THAN 2 ". NEW HANDRAIL5 SHALL BE OONTINlJOU5LY
GRASP ABLE ALONG THE ENTIRE LENGTH.
NEW HANDRAIL ENDS SHALL BE RETURNED TP THE WALL OR
FLOOR OR SHALL TERMINATE AT NEWEL P03T5.
NEW HANDRAILS ON OPEN 51DE5 OF STAIRS SHALL HAVE
INTERMEDIATE RAIL5 OR AN ORNAMENTAL eATTERN SUCH
THAT A SPHERE 4" IN PIA. CANNOT PA55 THROUGH ANY
OPENINGS IN SUCH HANDRAIL
SEE N.F.P.A. 101 SECT.
F1
_ FIN. 2ND FLOOR
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40 MIIN. FOYER STAIR FLAN
SO MIN
(12 TREADS 10 IO' EACH)
1/211
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DATE 05 -06 -05
SCALE AS SHOWN
DRAWN JC
JOB 0504
SHEET
A -&
SHEET 10 OF 28
REG,,,Noi10, +154
AALL a