HomeMy WebLinkAbout006 Structural Notes1. 2018 INTERNATIONAL BUILDING CODE (IBC), 2018 INTERNATIONAL EXISTING BUILDING CODE (IEBC)
2. ASCE 7-16 MINIMUM DESIGN LOADS FOR BUILDINGS AND OTHER STRUCTURES
3. ACI 318-14 BUILDING CODE REQUIREMENTS FOR CONCRETE STRUCTURES
4. 2018 NATIONAL DESIGN SPECIFICATION FOR WOOD CONSTRUCTION
DESIGN CODES AND STANDARDS:
GENERAL STRUCTURAL NOTES:
1. DEAD LOADS: CONCRETE SLAB = 4PSF + SELF WT
2. LIVE LOADS: UNIFORM LIVE LOAD = 125 PSF (LIGHT STORAGE)
3. SNOW LOADS: FLAT ROOF SNOW LOAD, Pf = 50 PSF (CITY OF BOZEMAN MIN.)
-GROUND SNOW LOAD, Pg = 46 PSF (CITY OF BOZEMAN MIN.)
-SNOW EXPOSURE FACTOR, Ce = 1.0 (BASED ON EXPOSURE CATEGORY C)
-SNOW LOAD IMPORTANCE FACTOR, Is = 1.0
-THERMAL FACTOR, Ct = 1.0
4. WIND LOADS: ULTIMATE DESIGN WIND SPEED (3-SECOND GUST), Vult = 115 MPH
RISK CATEGORY = II
WIND EXPOSURE = C
INTERNAL WIND PRESSURE COEFFICIENT = ± 0.55
WIND IMPORTANCE FACTOR = 1.0
5. SEISMIC LOADS: SEISMIC DESIGN CATEGORY = D
-RISK CATEGORY = II
-SEISMIC IMPORTANCE FACTOR = 1.0
-MAPPED ACCELERATION PARAMETER: SS = 0.692, S1 = 0.217
-SOIL SITE CLASS = D
-DESIGN SPECTRAL ACCELERATION PARAMETER, SDS = 0.575, SD1 = 0.313
-DESIGN BASE SHEAR: 0.65 KIPS
-SEISMIC RESPONSE COEFFICIENT, Cs = 0.088
-RESPONSE MODIFICATION FACTOR, R = 6.5
ANALYSIS PROCEDURE: EQUIVALENT LATERAL FORCE PROCEDURE
BASIC SEISMIC-FORCE-RESISTING SYSTEM: LIGHT-FRAME WOOD SHEARWALLS
DESIGN LOADS:
1. STRUCTURAL DRAWINGS SHALL BE USED FOR BIDDING AND CONSTRUCTION. CONTRACTOR SHALL NOTIFY
THE ENGINEER OF ANY DISCREPANCIES PRIOR TO BIDDING AND CONSTRUCTION.
2. DRAWINGS INDICATE GENERAL AND TYPICAL DETAILS OF CONSTRUCTION. WHERE CONDITIONS ARE NOT
SPECIFICALLY INDICATED BUT ARE OF SIMILAR CHARACTER TO DETAILS SHOWN, SIMILAR DETAILS OF
CONSTRUCTION SHALL BE USED, SUBJECT TO REVIEW AND APPROVAL BY THE ENGINEER OF RECORD.
3. THE CONTRACTOR SHALL NOTIFY THE ENGINEER
OF ALL DISCREPANCIES WHICH REQUIRE A SIGNIFICANT CHANGE IN THE DESIGN AND/OR CONSTRUCTION
FROM THAT SHOWN ON THE DRAWINGS.
4. THE CONTRACTOR SHALL CHECK AND COORDINATE WITH THE OWNER FOR BLOCKOUTS, CONDUIT, PIPE
SLEEVES, EMBEDDED ITEMS, ETC. TO BE EMBEDDED IN CONCRETE AND MASONRY, AS WELL AS OPENINGS IN
STRUCTURE FOR MECHANICAL AND ELECTRICAL INSTALLATIONS. STRUCTURAL DRAWINGS SHOW THIS
INFORMATION FOR COORDINATION PURPOSES ONLY.
5. ENGINEER SHALL REVIEW SHOP DRAWINGS ONLY FOR THE CONFORMANCE WITH THE DESIGN CONCEPT OF
THE PROJECT AND FOR COMPLIANCE WITH THE INFORMATION GIVEN IN THE CONTRACT DOCUMENTS.
DIMENSIONS AND QUANTITIES NOTED ON THE SHOP DRAWINGS ARE NOT GUARANTEED BY THE ENGINEER,
AND THEREFORE, MUST BE VERIFIED BY THE GENERAL CONTRACTOR. CONTRACTOR IS RESPONSIBLE FOR
INFORMATION THAT PERTAINS TO THE FABRICATION PROCESSES OR TO TECHNIQUES OF CONSTRUCTION.
SHOP DRAWINGS MUST BE REVIEWED, STAMPED, AND SIGNED BY THE CONTRACTOR PRIOR TO THE REVIEW
BY THE ENGINEER.
6. THE STRUCTURE SHALL BE ADEQUATELY BRACED FOR SOIL, WIND, EARTHQUAKE AND CONSTRUCTION
LOADS UNTIL ALL FLOOR, ROOF, AND WALL UNITS HAVE BEEN PERMANENTLY ATTACHED THERETO.
MISCELLANEOUS:
1. DESIGNS HAVE BEEN DEVELOPED BASED ON AN ALLOWABLE BEARING PRESSURE OF 3000 PSF PER IBC
TABLE 1806.2 FOR SANDY GRAVEL AND GRAVEL.
2. DATA ON INDICATED SUBSURFACE CONDITIONS ARE NOT INTENDED AS REPRESENTATIONS OR
WARRANTIES OF CONTINUITY OF SUCH CONDITIONS. IT IS EXPRESSLY UNDERSTOOD THAT OWNER AND
ENGINEER WILL NOT BE RESPONSIBLE FOR INTERPRETATIONS OR CONCLUSIONS DRAWN THEREFROM
BY THE CONTRACTOR.
EARTHWORK:
1. CONCRETE PROPERTIES:
** AIR CONTENT OF SLABS ON GRADE MAY BE REDUCED TO 2% MIN. IF THE SLAB WILL BE PROTECTED
FROM FREEZE/THAW CYCLES DURING AND AFTER CONSTRUCTION.
*** MAXIMUM SLUMP MAY BE INCREASED TO 8" W/ THE USE OF WATER-REDUCING ADMIXTURES TO
MAINTAIN THE SPECIFIED W/C RATIO.
2. ALL CONCRETE REINFORCING SHALL CONFORM TO ASTM A615, GRADE 60, EXCEPT FOR REINFORCING
INDICATED AS REQUIRING WELDING, WHICH SHALL CONFORM TO ASTM A706, GR.60.
3. CLEARANCE FOR REINFORCEMENT BARS, UNLESS SHOWN OTHERWISE, SHALL BE:
WHEN PLACED ON GROUND: --- 3" INTERIOR DRY SURFACES:
EXPOSED TO WATER, WEATHER, SLABS --------- 3/4"
BACKFILL OR CONDENSATION: BEAMS --------1-1/2"
#5 BAR OR SMALLER -----1-1/2" COLUMNS ------ 1-1/2"
#6 BAR OR LARGER ---------2" WALLS ---------1"
4. ALL BENDS, UNLESS OTHERWISE SHOWN, SHALL BE A 90 DEGREE STANDARD HOOK AS DEFINED IN THE
LATEST EDITION OF ACI 318. DETAIL ALL REINFORCEMENT IN ACCORDANCE WITH ACI 315.
5. ALL REINFORCEMENT LAPS, UNLESS OTHERWISE NOTED, SHALL BE AS FOLLOWS:
* TOP BARS SHALL BE DEFINED AS ANY HORIZONTAL BARS PLACED SUCH THAT MORE THAN 12" OF FRESH
CONCRETE IS CAST IN THE MEMBER BELOW THE BAR, IN ANY SINGLE POUR. HORIZONTAL WALL BARS ARE
CONSIDERED TOP BARS.
** INCREASE LAP LENGTHS SHOWN ABOVE BY 25% WHERE BARS ARE SPACED CLOSER THAN 6" O.C. OR
WHERE EDGE OF BAR MEASURED IN DIRECTION OF SPACING IS LESS THAN 3" FROM FACE OF MEMBER.
6. TOLERANCES IN PLACING REINFORCEMENT SHALL BE: +/-3/8 IN. FOR MEMBERS WITH D LESS THAN 8 IN.
+/-1/2 IN. FOR MEMBERS WITH D GREATER THAN 8 IN. WHERE D IS THE DISTANCE FROM THE OPPOSITE
FACE OF CONCRETE TO THE CENTER OF THE REINFORCING.
7. PROVIDE SUPPORTS FOR REINFORCING AS SPECIFIED TO MAINTAIN BAR POSITION IN CONCRETE.
8. DOWELS SHALL BE THE LENGTH INDICATED. DOWELS SHALL BE WIRED IN POSITION PRIOR TO POURING
CONCRETE.
9. AT ALL FOUNDATION/CONCRETE WALL AND FOOTING CORNERS AND WALL INTERSECTIONS, CORNER BARS
SHALL BE PROVIDED TO MATCH THE HORIZONTAL BARS.
10. UNLESS INDICATED OTHERWISE, ALL ANCHOR BOLTS, HOLDOWNS AND OTHER REQUIRED ACCESSORIES SHALL
BE WIRED IN PLACE PRIOR TO FOUNDATION INSPECTION AND CONCRETE PLACEMENT. DO NOT STAB THE
ABOVE LISTED ITEMS INTO FRESH CONCRETE AFTER PLACEMENT. PROPERLY VIBRATE AROUND INSTALLED
ITEMS TO ENSURE PROPER CONSOLIDATION OF CONCRETE.
11. AT SLABS-ON-GRADE, PROVIDE JOINTING AS INDICATED IN THE DRAWINGS WITH SPACING NOT TO EXCEED
36 TIMES THE SLAB THICKNESS.
12. AT SLABS-ON-GRADE, PROVIDE JOINTING AS INDICATED IN THE DRAWINGS.
13. WHERE "DRILLING & EPOXYING" OF REINFORCING STEEL OR THREADED ANCHOR RODS (ASTM A36, U.N.O.)
IS INDICATED, UNLESS NOTED OTHERWISE, PROVIDE THE FOLLOWING SYSTEM OR APPROVED EQUIVALENT:
APPLICATION EPOXY SYSTEM
NEW OR EXISTING CONCRETE HILTI HIT HY200
CAST-IN-PLACE CONCRETE:
BAR SIZE
CAST-IN-PLACE
CONCRETE
MINIMUM 28 DAY
COMPRESSIVE STRENGTH
MAXIMUM WATER-
CEMENT RATIO (BY WT.)
MAXIMUM
AGGREGATE SIZE
PERCENT RANGE
OF AIR CONTENT
MAXIMUM SLUMP
FOUNDATIONS /
SLABS ON GRADE
4500 PSI *
0.40
1 1/2"
6.5% ± 1.5% **
3" ***
DETAIL OF REINFORCEMENT - LAP LENGTHS **
GR. 60 TOP BAR *
OTHER BAR
1'-7"
1'-4"
#3
2'-1"
1'-7"
#4
2'-7"
2'-0"
#5
3'-1"
2'-4"
#6
4'-6"
2'-9"
#7
5'-2"
3'-6"
#8
5'-10"
4'-6"
#9
6'-7"
5'-1"
#10
7'-3"
5'-8"
#11
4500 PSI
1. ALL LUMBER SHALL BE GRADED AND MARKED ACCORDING TO THE WESTERN WOOD PRODUCTS ASSOCIATION (WWPA) GRADING
RULES OR APPROVED EQUIVALENT. ARCHITECTURAL/EXPOSED MEMBERS SHALL NOT BE STAMPED. A CERTIFICATE OF
COMPLIANCE BY THE MANUFACTURER SHALL BE PROVIDED IN LIEU OF MARKING.
2. PROVIDE THE FOLLOWING FRAMING LUMBER SPECIES AND GRADE WITH MOISTURE CONTENT LESS THAN 19%, S4S:
- 2x FRAMING LUMBER (NOT INCLUDING WALL STUDS AND PLATES) = DOUGLAS FIR-LARCH, GR. NO. 2
- POSTS AND BEAMS, 4x AND LARGER = DOUGLAS FIR -LARCH, GR. NO. 1
- BEARING/SHEAR WALL STUDS = DOUGLAS FIR - LARCH, GR. NO.2
- SILL PLATES IN CONTACT WITH CONCRETE OR MASONRY = PRESSURE TREATED HEM FIR, STUD GRADE.
3. ALL BUILT-UP POSTS SHALL BE NAILED AS FOLLOWS, BEGINNING AND ENDING NAILING 3" FROM BOTTOM AND TOP OF POST:
- 2 PLY 2X4 -ONE ROW OF 10d NAILS @ 12" O.C. EA. SIDE, STAGGERED 1 1/2" HORIZ. 6" VERT.
- 2 PLY 2X6 -TWO ROWS OF 10d NAILS @ 16" O.C. EA. SIDE, ROWS SPACED 2 1/2" APART, STAGGERED 8" VERT.
SAWN LUMBER:
1. ALL SHEATHING SHALL BE APA RATED, EXPOSURE 1, WITH SPAN RATINGS, THICKNESS & NAILING FOR SHEATHING AS INDICATED
IN THE PLANS.
2. PLACE FLOOR AND ROOF SHEATHING W/ THE LONG AXIS PERPENDICULAR TO SUPPORTS & STAGGER 48-INCHES.
3. DRIVE SHEATHING NAILS (OR OTHER SPECIFIED ATTACHMENTS) FLUSH WITH BUT NOT FRACTURING, THE WOOD PANEL SURFACE.
4. LOCATION OF SHEATHING ON FACE OF WALL IS SHOWN FOR REPRESENTATION ONLY, CONTRACTOR TO COORDINATE W/ ARCH.
ON WHICH FACE THE SHEATHING SHALL BE PLACED, PROVIDE TRANSFER BLOCKING PER DETAIL
ROOF, FLOOR, AND SHEAR WALL SHEATHING:
1. ALL NAILS SHALL BE "COMMONS" UNLESS INDICATED OTHERWISE. USE OF SMALLER DIAMETER "BOX" NAILS FREQUENTLY USED IN
NAIL GUNS REQUIRES USE OF LARGER PENNY WEIGHT TO PROVIDE AN EQUIVALENT DIAMETER/LENGTH NAIL PROVIDE ASTM A153
GALVANIZED FASTENERS @ TREATED WOOD.
2. STEEL CONNECTION PLATE MATERIAL SHALL CONFORM TO ASTM STANDARD A36. WELDING SHALL CONFORM TO AWS D1.1.
3. CONNECTION HARDWARE SHALL BE THE SIMPSON TYPE INDICATED, OR APPROVED EQUAL. PROVIDE ASTM G185 GALVANIZE COATING AT
CONNECTORS AND ASTM A153 GALVANIZED COATING AT FASTENERS AT CONNECTIONS TO TREATED WOOD. FILL ALL HOLES IN CONNECTION
WITH THE TYPE, SIZE, AND NUMBER OF BOLTS/NAILS LISTED BY THE MANUFACTURE. FINISH FOR EXPOSED CONNECTION HARDWARE SHALL
BE EPOXY-BASED CORROSION RESISTANT PAINT WITH COLOR AS CHOSEN BY ARCHITECT.
4. WHERE MULTIPLE FRAMING MEMBERS ARE SHOWN, PROVIDE HANGERS OF SIMILAR TYPE AS CALLED OUT BUT SIZED TO CARRY
MULTIPLE MEMBERS.
5. BOLTS AND LAG SCREW MATERIAL SHALL CONFORM TO ASTM STANDARD A307.
6. BOLT HOLES IN WOOD MEMBERS SHALL BE A MAXIMUM OF 1/16" LARGER THAN THE BOLT DIAMETER.
7. FOR LAG SCREWS, THE CLEARANCE HOLE SHALL BE THE SAME DIAMETER AS THE SHANK AND THE SAME DEPTH AS THE UNTHREADED
SHANK. THE LEAD HOLE SHALL BE 60 PERCENT OF THE SHANK DIAMETER AND A LENGTH EQUAL TO THE THREADED PORTION.
8. PROVIDE STANDARD WASHERS UNDER THE HEADS AND NUTS OF ALL BOLTS AND LAG SCREWS BEARING ON WOOD.
9. ALL FASTENING SHALL BE IN ACCORDANCE WITH 2012 IBC TABLE NO. 2304.9.1 UNLESS THE PLANS INDICATE A HEAVIER NAILING.
10. STAGGER SPLICES OF ALL DOUBLE TOP PLATES 48" (MIN.) AND NAIL WITH (2) 10d's @ 12" O.C. FOR 2'-0" EACH SIDE OF SPLICE
(4 TOTAL NAILS EACH SIDE OF SPLICE)
11. AT ALL EXPOSED, WOOD TO WOOD BOLTED CONNECTIONS, CUT OFF EXTENDED BOLT AND "KNICK" TO PRECLUDE LOOSENING.
12. ALL WASHERS FOR ANCHOR BOLTS ATTACHING SILL PLATES SHALL BE STEEL WASHERS WITH A MINIMUM OF 1/4"x3"x3" IN SIZE.
13. UNLESS NOTED OTHERWISE, PROVIDE 3/4" DIA. x 7" EMBED ANCHOR BOLTS AT 4'-0" MAX. O.C. AT ALL SILL AND BEARING PLATE TO
FOUNDATION WALL CONNECTIONS WITH (2) BOLTS MINIMUM PER EACH SILL PLATE PIECE AND WITH BOLTS 12" MAX. FROM CORNERS
AND ENDS OD SILL PLATE PIECES.
WOOD CONNECTIONS:
REV. DESCRIPTION DATE
REVIEWED BY:
DRAWN BY:
SHEET
DATE
SHEET TITLEMONTANA STATE UNIVERSITYMSU-CPDC
MONTANA STATE UNIVERSITY
BOZEMAN, MONTANA
PHONE: 406.994.5413
FAX: 406.994.5665
MMI #: 0747.075AES BART FARM AGCITY WATERSERVICE95% CONSTRUCTION DOCUMENTSRLS
NJM
GENERAL
STRUCTURAL NOTES
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11-11-2021
PPA#20-0116
02/01/22
21450 MSU AES
Bart Farm Water
Service Bldg.
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