HomeMy WebLinkAboutStair Construction Plans-- HANDRAIL GRIP SIZE
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'HANDRAIL HEIGHT. MEASURED VERTICALLY FROM THE SLOPED PLANE
ADJOD OOG THE TREAD NOSING. OR FINISH SURFACE OF RAMP SLOPE.
SHALL BE H07 LESS THAN 34 INCHES AND NOT MORE THAN 38 INCHES.
'HANDRAIL SHALL BE PROVIDED ON AT LEAST ONE SIDE OF EACH
CONTINUOUS RUN OF TREADS OF FLIGHT PATH FOUR OR MORE RISERS.
`HAHDRAtL ASSEMBLIES AND GUARDS SHALL BE DESIGNED TO RESIST A
LOAD OF 50 PLF APPUED IN ANY DIRECTION AT THE TOP AND TO
TRANSFER THIS LOAD THROUGH THE SUPPORTS TO IRE STRUCTURE.
-HAIIDRAILSS FOR STAIRWAYS SHALL BE CONTINUOUS FOR THE FULL LENGTH
OF THE FLIGHT, FROM A POINT DIRECTLY ABOVE THE TOP RISER OF THE
FLIGHT TO A POINT DLREC'ILY ABOVE THE LOWEST RISER OF THE FLIGHT.
HANDRAi 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
E AND THE HANDRAILS.
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2 X 2 BALLS
MIN. (3) SIMPSON'S SIDS 1/4" X 4-1/2" —
WOOD SCREWS FOR RIM JOIST TO POST
CONNECTION, (5) 16d NAILS OR EQUIVALENT
P.T. STEP LANDING FLOOR FASTENED -
TO
HOST FLOOR MEMBERS USING SIMPON'S
1/4" X 3-1/2" SOS WOOD SCREWS OR
EQUIV. AT 12" O.C. STAGGERED SCREW PATTERN
GUARD DETAIL 2X6 P.T. LANDING CONSTRUCTION
16" O.C. FLOOR JOISTS USING (5) 16d NAILS OR
EQUIVALENT AT EACH JOIST TO RIM JOIST
CONNECTION.
OPENINGS SHALL NOT ALLOW 30" GROUND ANCHOR
s 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
1.) HANDRAIL ASSEMBLIES AND GUARDS SHALL BE DESIGNED TO RESIST
A CONCENTRATED LOAD OF 200 POUNDS IN ACCORDANCE WITH
SECTION 4.5,1 OF ASCE 7.
2) IMM.EOIAT ILS, BALUSTERS, AND PANEL FILLERS SHALL BE
DESIGNED TDqK3ST A CONCENTRATED LOAD OF 50 POUNDS IN
NOTE_
STAIR TREAD AND RISERS
MAXIMUM RISER HEIGHT SHALL BE 7-3/4 INCHES. THE RISER
ALL BE MEASURED VERTICALLY BETWEEN LEADING EDGES OF THE
ACENT 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
IN 30 INCHES, AS MEASURED VERTICALLY, TO THE FLOOR OR GRADE DO NOT
MIT THE PASSAGE OF A 4-INCH CIAMETER SPHERE.
MINIMUM TREAD DEPTH SHALL BE 10 INCHES. THE TREAD DEPTH SHALL BE
,SURED HORIZONTALLY BETWEEN THE 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
ILLEST BY MORE THAN 3/8 INCH.
RADIUS OF CURVATURE AT THE LEADING EDGE OF THE TREAD SHALL BE NO GREATER
JN 9/16 INCH. A NOSING NOT LESS THAN 3/4 INCH BUT NOT MORE THAN 1-1/4 INO
,LL BE PROVIDED ON STAIRWAYS WITH SOLID RISERS. A NOSING IS NOT REQUIRED WHER
TREAD DEPTH IS A MINIMUM OF 11 INCHES.
THE GUARDS MAYBE WOOD. ALUMINUM, VINYL, OR EQUIVALENT.
.T. 5/4" X 5 BOARD RAIL CAP
OPENINGS SHALL NOT ALLOW
THE PASSAGE OF A 4" DIAMETER SPHERE
2 X 4 TOP & BOTTOM ATTACHED TO
TO POSTS WITH (2)#8 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.
3'-0" LANDING HEIGHT = 5 STEPS (MIN.)
4'-0" LANDING HEIGHT = 7 STEPS (MIN.)
5'-0" LANDING HEIGHT = 8 STEPS (MIN.)
STAIR AND LANDING ILLUMINATION REQUIRED
ATTACH BALUSTERS TO TOP & BOTTOM
W/ MIN. (1)#8 WOOD SCREW OR EQUIV.
7FTIEPOSTS
ION:
.T. 2X5 INSTALLED ON EXISTING CONCRETE, THE GROUND
PaTlo PAVERS (2" THICKNESSTIEDOWN STRAP CAN BE OMITTED.
OR EQUAL
POSTS SHALL BE ANCHORED TO THE EXISTING
B 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 LSC 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 II
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 61G15-230D4)
04-02-2021
SENYB ENGINEERING@ LLC
CA UC. NO: 30244
V ULT -ULTIMATE DESIGN WIND SPEED =160 MPH
VASD -NOMINAL DESIGN VAND SPEED .124 MPH
(TABLE 1609.3.1)
(3a .d gl t)
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Lake Wales, FL 33853
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