REVIEWED BLD RESUB1 BLD2024-0519+Building_or_Construction_Plan+7.11.2024_11.55.27_AM+4371151D E-
1 n' 5'
CUSTOM CONFIGURATION
• 12x12 ABS PAD UNDER ALL POST FEET W/(1) FOR 30-INCH OR LOWER
SDS25112 THRU (1) OF (2) HOLES IN POST FOOT E TYPICAL ELEVATION (WITH STANDARD RAIL TOTAL PLATFORM HEIGHT.
TO PAD, (2) #4x12" THROUGH PAD INTO SUBGRADE SCALE: �»=1'-0"
Welcome Ramp Systems, Inc.
Component Aluminum Ramp System for
Safe, User -Friendly Building Access.
www. welcomerampsystems. com
3"X1-1/2"X.125" AL.
PLATE W/TECH
SCREWS FOR
IAL
. 5'X5'
M/S.
1�"x1�"x�" FILLER ANGLE.
PLACE ENDS UNDER TREAD
HOLDDOWN ANGLE TO SECURE
IN PLACE.
T-SHAPE
EXTRUSION
END PLATE
1/�
N
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F=-i �
SECTION B
RAMP SUPPORT RAIL
SCALE: 3"=1'
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NOSING DETAIL
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EXTRUSION END
PLATE
SECTION A
RAMP CONNECTION
SCALE: 3"=1'
TRACTION
TREAD
CODE COMPLIANCE
1. IBC 2021, CHAPTERS 10 & 11 COMPLIANT
2. RISK FACTORS I & II
3. RAMP SLOPE, MAX.RISE = 1:12 (VERY/HORZ)
[30" MAX. RISE EACH RAMP RUN BETWEEN
PLATFORMS]
4. CROSS SLOPE, MAX. = 2%
5. STAIR RISE = 7" MAX., 4" MIN.
6. DESIGN LOADING:
6.1. DECK/RAMP 100 PSF / 300# CONC.
6.2. STAIR TREAD 300 LBS./TREAD
6.3. RAILING 50 PLF/200 LBS. CONC.
6.4. LATERAL LOAD 600# PEDESTRIAN DYNAMIC
LOADING PER 30-FT RAMP
6.5. WIND LOAD 135 MPH, EXP C, Kzt=1.0
6.6. SEISMIC LOAD Sds=1.0, SEISMIC CAT. 'D'
7. DOOR CLEARANCE AS REQUIRED BY IBC.
8. STANDARD 3 LINE RAIL FOR COMPONENTS 30"
OR LESS FROM GRADE TO WALKING SURFACE
OF RAMP, LANDING, OR STAIR.
9. 48" WIDE STAIR CLEARANCE.
10. 42" VERTICAL PICKET GUARDRAIL FOR
COMPONENTS OVER 30" FROM GRADE TO
WALKING SURFACE OF RAMP, LANDING, OR
STAIR.
11. GRASPABLE CONTINUOUS HANDRAIL AT 36" OFF
RAMP, PLATFORM, OR STAIR NOSING. INSTALL
BOTH SIDES OF STAIRS AND RAMP.
12. HANDRAILS TO EXTEND 12" HORIZONTALLY OVER
WALKING SURFACE AND RETURN TO WALL OR
RAIL COLUMN.
13. RAMP AND RAILINGS TO HAVE CURBS WHICH DO
NOT ALLOW PASSAGE OF 4" SPHERE WHERE
ORIGINAL POSITION OF SPHERE IS WITHIN 4" OF
THE WALKING SURFACE.
14. FOOTING INFORMATION: 12"x12"x1-1/2" P.T.
WOOD OR 2"x12"PRE-MANUFACTURED ABS PAD
REQUIRED UNDER ALL ADJUSTABLE POST FEET
W/(1) SDS251 12 THRU (1) OF (2) HOLES IN
POST FOOT TO PAD & (2) #4X12" THROUGH
PAD INTO SUBGRADE
(3) 1/2"� BOLTS
(z) $"fix 4" LAG BOLT, GALV. OR
EQUALLY SPACED THRU
SDS300 @EACH 5-FT PLATFORM
1 /4" X 7" STAIR END
SECTION ADJACENT BUILDING
ALUMINUM PLATE
INTOPLATFORM.
PLATFORM 0>_g°�
1/4" TRACTION
HEIGHT VARIES
TREAD
PLANK
I
16 GA. X
�;
\
47-15/16"
FLAT GALV.
I I
STEEL, TYP.
GENERAL NOTES:
1. THESE PLANS AND SPECIFICATIONS ARE NOT VALID FOR ANY OTHER ASSEMBLY THAN
PRODUCTS PRODUCED BY WELCOME RAMP SYSTEMS. INC. PRODUCTS PRODUCED THE
STANDARDS SET FORTH IN THESE DRAWINGS AND ACCOMPANYING DESIGN.
2. THE RAMP SYSTEM, STAIRS AND PLATFORM HAVE BEEN DESIGNED TO MEET IBC
REQUIREMENTS. THE VERTICAL DESIGN LOADING CRITERIA IS 100 PSF UNIFORM LIVE LOAD
AND 300# LIVE OR DEAD CONCENTRATED LOAD. USES FOR LOADS IN EXCESS OF THOSE
STATED ABOVE REQUIRE REDESIGN BY WELCOME RAMP SYSTEMS, INC.
3. RAMP DESIGN LIMITS: THE SLOPE SHALL BE 1:12. THE MAXIMUM CROSS SLOPE SHALL
BE LESS THAN 2%. THE MAXIMUM RUN SHALL BE 30'. THE MAXIMUM HEIGHT WITHOUT
ADDITIONAL ENGINEERING JUSTIFICATION SHALL BE 48" FROM THE PLATFORM TO FINISHED
GRADE.
4. WELCOME RAMPS, PLATFORMS, AND STAIRS ARE DESIGNED TO BE FREE STANDING.
5. DETAILS SHOW MOST USED HEIGHTS, OTHER HEIGHTS ARE SIMILAR.
MATERIAL SPECIFICATIONS
PLANKING:
• THIS DESIGN IS LIMITED TO GALVANIZED METAL PLANKING MATERIALS.
• RAMP: ALL PLANKING SHALL BE 13 GA. 12"W x 1 1 /2" DEEP.
• PLATFORM: ALL PLANKING SHALL BE 13 GA. 12" W x 1-1/2" D. SEE PLAN FOR
LENGTH.
• STAIRS: ALL PLANKING SHALL BE 11 GA. 12"W x 2" DEEP.
LEGS:
• LEVELING FEET ASSUMED TO BE PLACED ON SUITABLE FIRM BEARING GROUND.
• LEG MATERIAL SHALL BE 1-1/2" SQ.X .120" AL.TUBING.
• LEG POCKETS SHALL BE 1 .781 " SQ X .125" AL. TUBING.
• ADJUSTING BOLT - 3/8" X 2-1/4" GRADE 5 CAP SCREW W/NYLON LOCK NUT, ZINC
PLATED
ALUMINUM:
• THE 1-1/2" AL. HANDRAIL SHALL BE 6063-T5 WITH A YIELD STRESS OF 16 KSI.
• ALL OTHER ALUMINUM PARTS SHALL BE 6061-T6 ALUMINUM WITH A YIELD STRESS OF
35 KSI.
HAND RAILS:
• STAIRS AND RAMPS: USE 1-1/2" SQ. X 5/32" THICK WALLED TUBING FOR POSTS AND
HORIZONTAL RAILS EXCEPT THE TOP 1-1/2" ROUND HAND RAIL.
• STANDARD HANDRAIL (W/0 PICKETS) IS ALLOWED ON FINISHED PLATFORM HEIGHTS OF
30" AND LESS. ALL PLATFORM HEIGHTS ABOVE 30" SHALL USE PICKET STYLE
HANDRAILS.
• PLATFORM: USE 1-1/2 SQ. X 5/32" THICK WALLED TUBING FOR POSTS AND ALL
HORIZONTAL RAILS.
• HEIGHT: TOP OF GRIPPING SURFACES OF HANDRAILS SHALL BE 36 INCHES VERTICALLY
ABOVE WALKING SURFACES.
WELDING:
• ALL REFERENCES TO WELDING ON PLAN SET REFER TO IN -PLANT FABRICATION. NO
ON -SITE WELDING IS REQUIRED.
• FABRICATION PLANT WELDING BY WELDERS CERTIFIED BY A THIRD PARTY INSPECTOR AND
IN ACCORDANCE WITH ANSI/AWS D1.2 CODE.
• WELD SIZES ARE EQUAL OR LARGER THAN THE ELEMENT BEING WELDED.
• WELDING IS ALL AROUND UNLESS OTHERWISE NOTED. CARE IS TAKEN TO AVOID EXCESS
WARPING OF WELDED ELEMENTS.
• FABRICATOR TO CERTIFY ASSEMBLED PART ARE PER THE DRAWINGS PER IBC 1704.2.2.
BOLTS:
• ALL BOLTS SHALL BE GRADE 5 ZINC PLATED, UNLESS OTHERWISE SPECIFIED. PROVIDE
LOCKING WASHERS UNDER ALL NUTS AND ANCHOR BOLTS UNLESS OTHERWISE
SPECIFIED.
• HIGH STRENGTH BOLTS ARE DESIGNED AT LESS THAN 50% CAPACITY FOR ADDITIONAL
FACTOR OF SAFETY AND DO NOT REQUIRE SPECIAL INSPECTION.
TECH SCREWS:
• ZINC PLATED #10x1�", SELF TAPPING.
REVIEWED
BY
CITY OF EDMONDS
BUILDING DEPARTMENT
Y4" NOSING RADIUS,
TOP & BOTTOM
(4) 3/8" BOLTS, TYP. PER
TREAD
TREADS PER STAIR PLAN
� � � 1/4" x 8" ALUM.
\ PLATE CARRIAGE
SEE DETAIL 5 7" RISE
(V
LEVELING FOOT
1 �"
SECTION D 2 STAIRWAY ELEVATION
PLATFORM SUPPORT RAIL & SCALE: 1/2"=1'
CONNECTION TO BUILDING
SCALE: 3"=1'
AL. VERY. HAND RAIL
1�"x1�"x.125 SQ.
12" LONG 1�"x1�"x.125" SQ.
TUBE INSERT. WELD TO
4"x4"x�" AL. BASE PLATE
"x2" AL. FLAT BAR THAT
CONNECTS RAMP STRINGERS co
"x1�" AL. PLATE WELDED TO
EXTRUSION TO MAKE CONTINUOUS PLATFORM
L SHAPE
INSTALL BOLT WITH 1»
MIN. CLEAR IN
STRINGER PLATE
AROUND HOLE. (TYP.) �
W
OO 2" x 2" x 3/16"
RECEIVER TUBE �
--------------------- 5» LONG (TYP.) O
---- O
-------------
� r7 STAIR PLANK
11'> 2"x12"x51 "
SECTION C
RAMP END TRANSITION END LEG
SCALE: 3"=1'
DETAIL 4 -STAIR HAND RAIL
SCALE: 1 /2"=1 '
AL. STAIR
PLANK,
2"x12"x51"
4"-7" RISE
HANDRAIL BOTH
SIDE OF STAIR
23"
cV
1 /4" MARGIN, TYP.
1-1 /2" AL. ANGLE,
3/16" THICK STAIR
TREAD STIFFENER
12"
0'-1
1/2"
HANDRAIL
CONNECTION,
o
I
DETAIL 6
4"LONG X 1-3/4"
X 1-3/4" X 0.25"
AL. ANGLE WITH (2)
3/8" TACK SCREWS
INTO POST. WELD
HANDRAIL TO ANGLE
ALL AROUND.
DETAIL 3
HANDHOLD
SCALE: 1 /2"=1 '
w
3/4" THREADED
ADJUSTMENT
5/16" HOLES
IN OPPOSING
CORNERS
4" SQ. TYP.
DETAIL 5
LEVELING FOOT
SCALE: 3"=1'
4" HANDRAIL TIE
DETAIL 6
HANDRAIL CONNECTION
SCALE: 3"=1'
BLD2024-0519
RESUB
Jul 12 2024
CITY OF EDMONDS
DEVELOPMENT SERVICES
DEPARTMENT
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