HomeMy WebLinkAboutPlansFebruary 28, 2020 - Garage Addition - 4339 CR 113, Carbondale, Colorado Page 1 of 2
GENERAL STRUCTURAL NOTES
1. All construction shall conform to the 2015 editions of the International Residential Code (IRC), the International Building Code
(IBC) and the Garfield County amendments.
2. Details not specifically shown on these drawings shall be similar to details for like construction as shown on these drawings.
3. The Contractor shall verify all dimensions and conditions at the job site and shall report any discrepancies to the Architect and
Structural Engineer of Record (S.E.O.R.) before proceeding with work.
4. No structural members shall be cut, notched or otherwise penetrated unless specifically approved by the S.E.O.R. in advance or
as shown on these drawings.
DESIGN LOADS
1. ROOF LOADS
Dead Load 15 psf
Live Load (Snow) 40 psf"'
2. LATERAL LOADS
Seismic Design Category C
Basic Wind Speed 115 mph (ult)
Exposure Category B
Importance Factor II
*No duration of load increase was used in design
FOUNDATIONS
1. Concrete Foundations are designed based on the following assumed soil parameters:
Soil Density = 120 pcf
Allowable Bearing Pressure = 2,000 psf
Air Freezing Index = 2,500 deg -days
c=us,
E=sara@evolvestruct com,
CN=Sara Mickus
Evolve Structural Design
2020.03 03 13:24:55-0700'
REINFORCED CONCRETE
1. All concrete design is based on the "Building Code Requirements for Reinforced Concrete", ACI 318, latest edition, associated
Commentary (ACI 318R), and IRC/IBC Requirements.
REINFORCING STEEL
1. All detailing, fabrication, and placement of reinforcing steel shall be in accordance with the ACI Manua[ of Concrete Practice.
Except where otherwise noted on the Drawings, reinforcing bars shall conform to ASTM Specification A615 and shall be Grade 60.
Ties and field -bent bars as noted on plan shall be Grade 40.
2. Welded wire fabric reinforcement shall conform to ASTM A185 and shall be sheet -type; roll -type is not acceptable.
3. Coverage for reinforcing bars shall be in accordance with the requirements of the IBC, the ACI Standard 318 and in the Table
below, unless shown otherwise on the Drawings.
4. Lap splices for reinforcing bars shall be 57 bar diameters (24" minimum) for concrete reinforcement and 72 bar diameters (36"
minimum) for masonry reinforcement unless shown otherwise on the Drawings. Wire bars together at laps or splices. Stagger laps
in adjacent horizontal bars a minimum of the required splice length. Hooks shall be ACI standard hooks unless shown otherwise.
Welded wire fabric shall be spliced by lapping a minimum of 12 inches, or (2) cross wires, whichever is greater.
SHEAR WALLS (SW)
1. All bearing walls shall be continuously sheathed as Typical Exterior Shear Wall, accordingly.
2. Typical Exterior Shear Wall shall be 7116" APA rated OSB or plywood attached to studs w/ 8d common or galvanized box nails (1
318" stud penetration) @ 6"o.c. at panel edges & 12"o.c. at intermediate supports. Block all panel edges.
3. Nails for gyp board attachment shall be dritite or 'cooler' type nails.
4. Nails for plywood shall be common nails. Use of pneumatically driven nails is subject to approval by the building department and
structural engineer. Do not overdrive nails.
5. Plywood sheathing shall be standard (c -d) grade with exterior glue.
6. Gypsum board and plywood to conform to IBC tables 2306.4.5 and 2306.4.1.
7. Install 2x continuous blocking at horizontal panel joints/edges as needed for edge nailing.
1
February 28, 2020 - Garage Addition - 4339 CR 113, Carbondale, Colorado Page 2 of 2
WOOD AND TIMBER FRAMING
1. All wood and heavy timber construction shall conform to the American Institute of Timber Construction (AITC) and National Design
Specification (NDS) Standards, latest edition.
2. Structural framing lumber shall be at a minimum, as noted below, unless noted otherwise, and shall have a maximum moisture
content of 19% at time of delivery.
3. Provide solid blocking at supports between joists and rafters. Within floor joist spaces beneath solid or built-up posts, provide solid
blocking with area same as post above.
4. All plywood shown on these drawings shall be minimum C -D grade with exterior glue in accordance with DOC PS 1 and comply
with IBC.
5. Sill plates shall be of naturally durable wood, or Zinc Borate treated LSL or Douglas Fir -Larch per IBC with Fc perp = 625 psi,
minimum and shall be protected for dry use.
6. All wood framing shall be preservative pressure treated when in contact with concrete or masonry foundation or exposed to
exterior conditions. All fasteners used to connect pressure -treated wood shall be hot -dipped galvanized (HDG) or stainless steel.
7. Except as noted otherwise, provide minimum nailing as specified in IBC Structural nailing shall be with common nails, unless
otherwise noted on the Drawings. Nails exposed to weather shall be galvanized. Nails used to connect preservative treated wood
shall be hot dipped galvanized (HDG) or stainless steel.
8. Metal timber connectors shall be Simpson Strong -Tie or equivalent. Hardware specified is for specific member size &
manufacturer as show on the structural drawings. Hanger slope, skew & top flange shall be designated by the contractor as
required. Simpson connectors for preservative treated wood or connectors in contact with concrete shall be ZMAX or HDG, or as
otherwise recommended by specific connector supplier. Install all connectors in accordance with manufacturer's instructions for
maximum rated loads.
9. Bolts used as timber -to -steel or timber -to -timber connectors shall be ASTM A307 unless noted otherwise on the Drawings. Bolts
shall be installed in accordance with the requirements of the latest edition of the National Design Specification for Wood
Construction (NDS) by the National Forest Products Assoc. Bolts used to connect pressure -treated wood shall be HDG or
stainless steel.
10. Provide malleable iron washers or equivalent cut plate washers under all nuts, bolts or lag screw heads which bear on wood.
11. Wood screws shall be steel per NDS requirements. Pre -drill holes to prevent splitting as recommended in the NDS.
12. Wood members shall be cut or notched only as shown on the Structural Drawings.
13. Provide cross bridging, solid bridging or other lateral support for all framing members in accordance with the requirements of IBC.
14. Except where more stringent construction is shown on the Drawings, wood construction shall comply with the requirements of the
IBC, latest edition, as a minimum.
MANUFACTURED WOOD PRODUCTS
1. Manufactured wood I joists shall be installed in accordance with the manufacturer's recommended details for blocking, bracing,
bearing and connections. See plan for size, depth and product designations. Any altemate products shall be submitted to the
engineer for written approval prior to construction.
2. Laminated Veneer Lumber (LVL) beam & column plies shall be 1 3/4" in width with number of plies and depths as noted on plan.
LVL shall have the following minimum working stresses: Fc pl1=2,510 psi, Fb=2,600 psi, Fv=285 psi, E=2,000,000 psi.
3. Manufactured wood products as noted above shall be installed per manufacturer's specifications.
4. Manufactured wood products in contact with concrete or masonry foundation or exposed to exterior conditions shall be treated per
manufacturer's specifications.
5. Wood manufactured products other than those noted, which have I.C.B.O. approval, may be used with approval by the engineer of
record. Substitutions made by the Owner or Contractor shall include all connection hardware as required for sizes used and shall
have equivalent load ratings as those called for on the Drawings.
ADHESIVE
1. All structural construction adhesive specified shall be Loctite PL Premium
manufacturer's specifications.
2. Epoxy shall be Hilti HIT-HY 200 or approved equivalent, unless otherwise
Fast Grab or approved equal & shall be installed to
noted on the Drawings.
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Refer to plan atta4rments for
Garfield County
Building Requirements
and cornprehens,ive list of
Plan Review Notations.
APPROVED
SUBJECT TO NOTED
EXCEPTIONS & INSPECTIONS
GARFIELD COUNTY
Buti._pmp DEPA TMENT
DATE T2/74 BY 40
FIELD COPY
NO INSPECTION WITHOUT
THESE PLANS ON SITE
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ELECTRICAL PERMITTING & INSPECTIONS ARE
BY THE COLORADO STATE ELECTRICAL BOARD '
ELECTRICAL ROUGH IN APPROVAL IS
REQUIRED AT FRAMING INSPECTION
ELECTRICAL FINAL APPROVAL IS
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Concrete Slab Insulation:
If heated interior space above concrete, provide R-10 rigid
insulation at slab edge as per 2009 IECC, Table 402.1.1 and
per requirements described in IECC, Section 402.2.9
If concrete slab has integral radiant floor heat, then slab edge
protection must be increased to R-15 and R-5 rigid insulation
must be installed below slab per IRC, Section M2103.
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Shallow Frost -Protected Slab Foundations:
Slab on grade concrete foundations that do not extend fully
down below frost line must comply with requirements of I.R.C.,
Section R403.3 including Figure R403.3(1) and Tab/e R403.3(1)
*Note: Garfield County's Air Freezing Index = 2,500.
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Horizontal Insulation:
R = 1.7 along walls
R = 4.9 at corners
Insulation Dimensions per
Table R403.3(1) 2015 IRC
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CONCRETE, SEE NOTES FOR
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Remodels & Additions:
#32 — C.O. alarms required in existing structures
per Colorado State House Bill 09-1091
#33 — Smoke detectors & C.O. alarms required
when sleeping rooms added to existing
structures
ALL CONSTRUCTION
SHALL MEET THE
REQUIREMENTS OF
THE 2015 IBC/IRC
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Condition of Permit:
If structure is to be heated (now or in the future) insulation at
thermal envelope shall comply with 2009 I.E.C.C. requirements.
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SEE ATTACHED GENERAL NOTES
FOR LOADS
14" LVL LEDGER
CONNECT w/ (4) 16d EACH STUD
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ALL CONSTRUCTION
SHALL MEET THE
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ALL CONSTRUCTION
SHALL MEET THE
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