RVWD BLD BLD2024-0940+Structural_Calculations+7.18.2024_12.08.23_AM+4385516BLD2024-0940 RECEIVED 7821 - 168th Ave. N.E.
My, MITCHELL ENGINEERING INC. Jul 19 2024 Redmond, WA 98052
CITY OF EDMONDS (425) 747-1500
DEVELOPMENTDE ARTMENRVICfitchellenglneeringillc@comcast.net
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V :BUILDING DEPARTMENT'
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PREPARED BY 446 PROJECT` SHEET NO. OF
DATE /, SUBJECT �/ "'�" JOB NO. 024— 1,60P
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MITCHELL ENGINEERING INC. Reond, WA 98052
(425)747-1500
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PREPARED BY PROJECT SHEET NO. 4 OF
DATE 6, xo 6 a SUBJECT JOB NO. ��4
SHEAR WALL SCHEDULE
LDesiSize
SLnatill
Nail
Nail Spacing
ALLOWABLE SHEAR
Hem -Fir #2
#/Ft
Ed es
Studs
Top/Btm.
Plate
Blocking
Re `d.
PI-6
8d
6"
12"
6"
Yes
210
PI-4
8d
4"
12"
4"
Yes
310
P1-3
8d
3"
12"
3"
Yes
400
P1-2
8d
2"
12"
2"
Yes
525
P2-3
8d
3"
12"
3"
Yes
800
P2-2
8d
2"
12"
2"
Yes
1050
Shear Wall Notes:
1. Pl - 7/16 A.P.A. rated Plywood or Orientated Strand Board (O.S.B.) on one side of wall.
P2 - 7/16 A.P.A. rated Plywood or Orientated Strand Board (O.S.B.) on each side of wall.
2. For P1-3, P1-2, P2-3, & P2-2 shear walls use 3x studs at adjoining panel edges. Nailing shall be staggered.
3. Nails shall be 8d common. (d = .131 inch)
4. Where plywood is installed on both sides of wall plywood joints shall fall on separate studs each side.
5. All panel edges backed with 2=inch nominal framing for P1-6 & P1-4 shear wall. All panels edges backed with 3x framing at
P 1-3, P 1-2, P2-3, & P2-2 shear walls. Install panels either horizontally or vertically. Space nails @ 12 inches on center @
intermediate supports.
6. All anchor bolts shall be installed with hot dipped galvanized plate washers.
7. Refer to foundation plan for anchor bolt size, spacing and mudsill/rim connections.
STRUCTURAL NOTES
CODE:
DESIGN IS IN ACCORDANCE WITH THE 2021 INTERNATIONAL BUILDING CODE
(I.B.C.) AS AMENDED BY THE LOCAL BUILDING DEPARTMENT.
LIVE LOADS:
ROOF ------------------- 25 P SF
FLOOR ----------------- 40PSF
LATERAL:
WIND ------------------ EXPOSURE B, 85MPH/I IOMPH(ULT)/WIND PER ASCE 7-16
SECTION 28.5.3
SEISMIC -------------- SITE CLASS D. SEISMIC PER ASCE 7-16, SIMPLIFIED LATERAL
FORCE SYSTEM, SECTION 12.14.8.1
FOUNDATIONS:
EXTEND FOOTINGS TO FIRM UNDISTURBED SOIL, ASSUMED BEARING CAPACITY
OF 1500PSF. ALL EXTERIOR FOOTINGS SHALL EXTEND A MINIMUM OF 1'-6"
BELOW ADJACENT EXTERIOR GRADE.
CAST -IN -PLACE CONCRETE:
F'c=3000 PSI @ 28 DAYS. MINIMUM 5-1/2 SACKS OF CEMENT PER CUBIC YARD OF
CONCRETE AND MAXIMUM OF 6-3/4 GALLONS OF WATER PER 94# SACK OF
CEMENT. NO SPECIAL INSPECTION REQUIRED. CONCRETE SHALL COMPLY WITH
ACI 318-14 SECTION 26.4.2.1. MAXIMUM SLUMP IS 4 INCHES. ALL PHASES OF
WORK PERTAINING TO THE CONCRETE CONSTRUCTION SHALL CONFORM TO
BUILDING CODE REQUIREMENTS FOR REINFORCED CONCRETE. ALL
REINFORCING STEEL, DOWELS, ANCHOR BOLTS, AND OTHER INSERTS SHALL BE
SECURED IN POSITION PRIOR TO POURING CONCRETE. ANCHOR BOLTS FOR
PRESSURE TREATED SILL PLATES TO FOUNDATION WALLS TO BE 5/8 INCH
DIAMETER WITH 7 INCHES MINIMUM EMBEDMENT INTO CONCRETE AND
MAXIMUM SPACING OF 2.5 FEET ON CENTER. MINIMUM 2 BOLTS PER SILL PLATE.
FIRST BOLT TO BE INSTALLED 6 INCHES FROM END OF PLATE. DIPPED
GALVANIZED CONNECTORS SHALL CONFORM TO ASTM A653M CLASS-G-185.
REINFORCING STEEL:
ALL REINFORCING STEEL SHALL BE PLACED IN CONFORMANCE WITH THE
BUILDING CODE REQUIREMENTS FOR REINFORCED CONCRETE AND THE
MANUAL OF STANDARD PRACTICE FOR REINFORCED CONCRETE CONSTRUCTION
BY CRSI. DEFORMED REINFORCING STEEL BARS SHALL CONFORM TO ASTM A-
615 GRADE 40 FOR #5 AND SMALLER REINFORCEMENT.
CONCRETE CAST AGAINST EARTH 3 INCHES
CONCRETE EXPOSED TO EARTH OR WEATHER:
#6 THROUGH #18 BARS
#5 BAR AND SMALLER
2 INCHES
1-1/2 INCHES
STRUCTURAL TIMBER:
ALL LUMBER SHALL CONFORM TO WWPA GRADING RULES FOR WESTERN
LUMBER, LATEST EDITION. PROVIDE CUT WASHERS UNDER ALL NUTS AND
BOLTS BEARING AGAINST WOOD. ALL WOOD IN CONTACT WITH CONCRETE
SHALL BE PRESSURE TREATED IN ACCORDANCE WITH AWPA U1 AND M4
STANDARDS. ALL STRUCTURAL LUMBER SHALL BE AS NOTED BELOW:
2X FLOOR JOIST
2X ROOF RAFTERS
2X DECK JOIST
4X BEAMS
6X BEAMS
LUMBER NOT NOTED
DOUG-FIR/LARCH #1---- Fb-950 PSI
HEM-FIR#2------------------ Fb-850 PSI
HEM-FIR#2------------------ Fb-850 PSI
DOUG-FIR/LARCH #1---- Fb-950PSI
DOUG-FIR/LARCH #1---- Fb-950PSI
HEM -FIR
Fb-850 PSI
MISCELLANEOUS HANGERS TO BE SIMPSON OR APPROVED EQUAL. ALL
HANGERS SHALL BE FASTENED TO WOOD WITH PROPER NAILS. ALL HOLES
SHALL BE NAILED. MACHINE BOLTS TO BE A-307. ALL NAILS SHALL BE
COMMON WIRE NAILS. NAILING SHALL BE IN ACCORDANCE WITH THE CURRENT
I.B.C. SCHEDULE.
STRUCTURAL LAMINATED LUMBER (GRADE 2.0)
Fb=2600 PSI
E=2,000,000 PSI
Fv=285 PSI
FLOOR SHEATHING:
SHEATHING SHALL BE'/a INCH TONGUE AND GROOVE A.P.A. RATED SHEATHING.
SPAN RATING 48/24 WITH LONG DIMENSION PERPENDICULAR TO SUPPORTS.
UNLESS NOTED OTHERWISE NAIL WITH 8d COMMON NAILS AT 6 INCHES ON
CENTER AT SUPPORTED PANEL EDGES AND 10 INCHES ON CENTER AT
INTERMEDIATE SUPPORTS. THE FLOOR SHEATHING SHALL BE GLUED TO THE
JOIST AND THE TONGUE AND GROOVE JOINTS WITH AN APPROVED ADHESIVE.
WALL SHEATHING:
SHEATHING SHALL BE 7/16 A.P.A. RATED SHEATHING, SPAN RATING 24/0. PANEL
END JOINTS SHALL OCCUR AT SUPPORTS. NAIL PANEL EDGES WITH 1 Od NAILS
AT 6 INCHES ON CENTER AND 10 INCHES AT INTERMEDIATE SUPPORTS UNLESS
NOTED OTHERWISE ON THE DRAWINGS.
GLU-LAMINATED TIMBER:
LAMINATED TIMBER SHALL BE DOUGLAS-FIR/LARCH KILM DRYED. STRESS
COMBINATION OF 24F-V4 FOR SIMPLE SPANS AND 24F-V8 FOR CANTILEVER AND
CONTINUOUS BEAMS.
ROOF SHEATHING:
SHEATHING SHALL BE 7/16 A.P.A. RATED SHEATHING. SPAN RATING 32/16,
INSTALLED WITH LONG DIMENSION ACROSS SUPPORT. PANEL END JOINTS
SHALL OCCUR AT SUPPORTS. NAIL PANEL EDGES WITH 8d NAILS SPACED AT 4
INCHES ON CENTER AND 10 INCHES ON CENTER AT INTERMEDIATE SUPPORTS.
FLOOR FRAMING:
PROVIDE FULL DEPTH BLOCKING FOR JOIST AT THE SUPPORTS. FLUSH BEAMS
(FB) AND HEADERS NOT CALLED OUT ON THE PLANS SHALL BE 4X8. ALL
VERTICALLY LAMINATED COLUMNS AND HEADERS SHALL BE SPIKED
TOGETHER WITH TWO ROWS OF 12d NAILS SPACED AT 12 INCHES ON CENTER.
BEARING WALL FRAMING:
ALL DOOR AND WINDOW HEADERS NOT CALLED OUT ON THE PLANS 4X8 WITH
ONE TRIMMER AND ONE KING STUD FOR OPENINGS 4 FEET WIDE OR LESS.ALL
COLUMNS NOT CALLED OUT ON THE PLANS BE (2) STUDS SPIKED TOGETHER
WITH 12d NAILS SPACED 12 INCHES ON CENTER. PROVIDE 2 LAYERS OF
BUILDING PAPER BETWEEN WOOD AND CONCRETE. WALLS SHALL HAVE A
SINGLE BOTTOM PLATE AND DOUBLE TOP PLATE. END NAIL TOP PLATES AND
BOTTOM PLATES TO EACH STUD WITH 2-16d NAILS. FACE NAIL DOUBLE TOP
PLATE WITH 1Od NAILS AT 10 INCHES ON CENTER. LAP AND FACE NAIL PLATES
WITH 2-10d NAILS AT EACH SPLICE AND CORNER INTERSECTION. STAGGER
SPLICES A MINIMUM OF 48 INCHES.
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