HomeMy WebLinkAboutStair Construction PlansHANDRAIL GRIP SIZE
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`HANDRAIL HEIGHT, MEASURED VERTICALLY FROM THE SLOPED PLANE
A.DJOI UG THE TREAD NOSING, OR FINISH SURFACE OF RAMP SLOPE.
SHALL BE NOT LESS THAN 34 INCHES AND NOT MORE THAN 38 INCHES.
'HANDRAIL SHALL BE PROVIDED ON AT LEAST ONE SIDE OF EACH
CONTMOUS RUN OF TREADS OF FLIGHT WITH FOUR OR MORE RISERS.
`HANDRAIL ASSEMBLIES AND GUARDS SHALL BE DESIGNED TO RESIST A
LOAD OF 50 PLF APPLIED IN ANY DIRECTION AT THE TOP AND TO
TRANSFER THIS LOAD THROUGH THE SUPPORTS TO THE STRUCTURE.
'MANORA2S FOR STAIRWAYS SHALL BE CONTINUOUS FOR THE FULL LENGTH
OF THE FLIGHT, FROM A POINT DIRECTLY ABOVE THE TOP RISER OF THE
FUGHT TO A POINT DIRECTLY ABOVE THE LOWEST RISER OF THE FLIGHT.
HANDRA2 ENDS SHALL BE RETURNED OR SHALL TERMINATE IN NEWEL
POSTS OR SAFETY TERMINALS. HANDRAILS ADJACENT TO A WALL SHALL
HAVE A SPACE OF NOT LESS THAN 1-1/2 INCHES BETWEEN THE WALL
AND THE HANDRAILS.
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2 X 2 BALLS
MIN. (3) SIMPSON'S SOS 1/4" X 4-1/2" —
WOOD SCREWS FOR RIM JOIST TO POST
CONNECTION, (5) 16d NAILS GR EQUIVALENT
P.T. STEP LANDING FLOOR FASTENED
TO HOST FLOOR MEMBERS USING SIMPON'S
1/4" X 3-1/2" SDS WOOD SCREWS OR
EQUIV. AT 12" O.C. STAGGERED SCREW PATTERN
GUARD DETAIL 2X6 P.T. LANDING CONSTRUCTION
1G" O.C. FLOOR JOISTS USING (5) 16d NAILS OR
p EQUIVALENT AT EACH JOIST TO RIM JOIST
1 CONNECTION.
gpq OPENINGS SHALL NOT ALLOW
30" GROUND ANCHOR
THE PASSAGE OF A 4" DIAMETER SPHERE W/ TIE DOWN STRAP
STRAP TO WRAP AROUND P.T. 2 X 6 TIGHTLY
(DO NOT OVER TENSION STRAPS)
OPENINGS SHALL NOT ALLOW (EACH SIDES OF LANDING)
THE PASSAGE OF A 4" DIAMETER SPHERE
NO
i.) ISSEMBLIES AND GUARDS SHALL BE DESIGNED TO RESIST
A COD LOAD OF 200 POUNDS IN ACCORDANCE WITH
SEC'DF ASCE 7.
2) fAILS. BALUSTERS. AND PANEL FILLERS SHALL BE
DESKSIST A CONCENTRATED LOAD OF 50 POUNDS IN
A T S CTI N 4.5.1 OF SC 7
NOTE:
STAIR TREAD AND RISERS
MAXIMUM RISER HEIGHT SHALL BE 7-3/4 INCHES. THE RISER
'LL BE MEASURED VERTICALLY BETWEEN LEADING EDGES OF THE
iACENT TREADS. THE GREATEST RISER HEIGHT WITHIN ANY FLIGHT
STAIRS SHALL NOT EXCEED THE SMALLEST BY MORE THAN 3/8 INCH.
:N RISERS ARE PERMITTED PROVIDED THAT THE OPENINGS LOCATED MORE
N 30 INCHES. AS MEASURED VERTICALLY, TO THE FLOOR OR GRADE DO NOT
MIT THE PASSAGE OF A 4-INCH DIAMETER SPHERE.
MINIMUM TREAD DEPTH SHALL BE 10 INCHES. THE TREAD DEPTH SHALL 43E
ISUREO HORIZONTALLY BETWEEN TIE VERTICAL PLANES OF THE FOREMOST PROJECTION
ADJACENT TREADS AND AT A RIGHT ANGLE TO THE TREAD'S LEADING EDGE.
GREATEST TREAD DEPTH WITHIN ANY FLIGHT OF STAIRS SHALL NOT EXCEED THE
1LLEST BY MORE THAN 3/8 INCH.
RADIUS OF CURVATURE AT THE LEADING EDGE OF THE TREAD SHALL BE NO GREATER
�N 9/16 INCH. A NOSING NOT LESS THAN 3/4 INCF BUT NOT MORE THAN 1-1/4 INCF
,LL BE PROVIDED ON STAIRWAYS WITH SOLID RISERS. A NOSING 15 NOT REQUIRED WHER
THE GUARDS I.E. ALUMINUM, VINYL, OR EQUIVALENT.
'0
0" MAX -X T. 5/4" X 6 BOARD RAIL CAP
-
OPENINGS SHALL NOT ALLOW
THE PASSAGE OF A 4" DIAMETER SPHERE 3'-0' LANDING HEIGHT = 5 STEPS (MIN.)
4'-O' LANDING HEIGHT = 7 STEPS (MIN.)
2 X 4 TOP & BOTTCM ATTACHED TO 5'-O' LANDING HEIGHT = 8 STEPS (MIN.)
TO POSTS WITH (2)#B WOOD SCREWS
ON INSIDE FACE.
OPENINGS FOR REQUIRED GUARDS ON THE
SIDE OF STAIR TREADS SHALL NOT ALLOW A
SPHERE 4-3/8" TO PASS THROUGH.
STAIR AND LANDING ILLUMINATION REQUIRED
�. ATTACH BALUSTERS TO TOP & BOTTOM
W/ MIN. (1)#8 WOOD SCREW OR EQUIV.
EANCHORS
OPTION:
T. 2X6 ARE INSTALLED ON EXISTING CONCRETE, THE GROUND
PATIO PAVERS (2" THICKNESS AND TIEDOWN STRAP CAN BE OMITTED.
OR EQUAL
4 X 4 POSTS SHALL BE ANCHORED TO THE EXISTING
SLAB USING SIMPSON'S L-BRACKET OR EQUIVALENT.
MIN. UNIFORMLY DISTRIBUTED LIVE LOAD - STAIRS = 40 PSF
(1) 2 X 6 P.T. ATTACHED TO POSTS
USING (5) 16d NAILS OR EQUIVALENT AT EACH
2X6 TO POST CONNECTION.
(3) 2 X 12 P.T. STAIR STRINGERS ATTACHED TO P.T. LANDING
USING SIMPSON'S 1-SC ADJUSTABLE STAIR STRINGER OR EQUIV.
1/8" GALVANIZED CABLE COIL (7 X 7 OR 7 X 19 CONSTRUCTION)
MAYBE USED INSTEAD OF THE 1-1/4" WIDTH TIE -DOWN STRAP
"' ALL STAIR COMPONENTS TO BE PRESSURE TREATED LUMBER
ALL FASTENERS IN CONTACT WITH P.T. LUMBER TO BE HOT DIP GALVANIZED OR STAINLESS STEEL
THIS ITEM HAS BEEN
ELECTRONICALLY SIGNED AND
SEALED BY MARK V. RICHTER, P.E.
#56196 ON THE DATE AND/OR TIME
USING A DIGITAL SIGNATURE.
PRINTED COPIES OF THIS DOCUMENT
ARE NOT CONSIDERED SIGNED AND
SEALED AND THE SIGNATURE MUST
BE VERIFIED BY THIRD PARTY
CERTIFICATE AUTHORITY ON ANY
ELECTRONIC COPY.
(FAC 611315-23.004)
04-02-2021
SENYB ENGINEERING, LLC
L CA LIC. NO: 30244
V uLT -ULTIMATE DESIGN Witco SPEED =1601MPH
VASO.NOMINAL DESIGN WIND SPEED. 124 MPH
(TABLE 1609.3.1)
(3 se-m 9.14)
50 W. Central Ave., Ste. B
Lake Weles, FL 33853
Office: 43589-MO
Fm:1-86U65 2044