160203_ Mahoney Structural DrawingsBONUS ROOM STRUCTURE77 EMMERSON WAYFLORENCE MA01092JACOB SMITH ENGINEERING AND DESIGN5
PARTIAL ROOF FRAMING PLAN
SCALE: 3
8" = 1'-0"
1
S1
NEW SECOND FLOOR FRAMING PLAN
SCALE: 3
8" = 1'-0"
2
S1 1. See General Notes sheet S2.
2. Coordinate all dimensions, elevations and openings with Architectural drawings.
3. X indicates number of vertical 2x4 squash blocks in floor system at column location above.
4. Provide minimum one trimmer and one king stud each end of each header, U.N.O. Provide
minimum (2) king studs at openings with widths greater than 4 ft.
5. Stud posts and columns are shown below.
1. See General Notes sheet S2.
2. Coordinate all dimensions, elevations and openings with Architectural drawings.
3. Provide (2) LSTA12 strapS connecting all new LVL beams to their posts below.
BONUS ROOM STRUCTURE77 EMMERSON WAYFLORENCE MA01092JACOB SMITH ENGINEERING AND DESIGN5
GARAGE SECTION
SCALE: 1
2" = 1'-0"
1
S2 1. See General Notes on Sheet S2.
GARAGE SECTION AT DORMER
SCALE: 1
2" = 1'-0"
2
S2 1. See General Notes on Sheet S2.
GENERAL STRUCTURAL NOTES
DESIGN LIVE LOADS: 2009 I.R.C. and Commonwealth of Massachusetts, 8th Edition Amendments
* Snow Ground - Pg = 40 psf,
* Wind 90 mph, exposure B, 3-Sec gust
* Live 40 psf
WOOD FRAMING:
* Dimension lumber is designed and shall be supplied using Jacob Smith Engineering and Design values design criteria.
* Spruce Pine Fir #1 and better (Maximum Moisture Content 19%) U.N.O.
Plates:
Sill plates: Pressure Treated Timber Strand LSL by Trus Joist or Pressure treated Doug Fir or Southern Pine #1 or better:
Top and Bottom plates: Spruce Pine Fir #1 and better.
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resistant solution, meeting all current standards for wood in contact with concrete or earth.
Sill plates in contact with masonry or concrete foundations, footings or slabs may be treated Timber Strand LSL (zinc borate treatment).
Sodium borate treatment may also be acceptable for sill plate applications when protected from weather.
Acceptable treatment mediums for wood in contact with earth or in exterior applications include ACQ-C and ACQ-D (Alkaline Copper
Quaternary) and copper azole (CBA-A and CBA-B). DO NOT USE WOODS WHICH HAVE BEEN TREATED WITH AMMONIA
BASED CARRIERS. All connectors shall meet the recommendations of the pressure treated wood manufactures, but shall be not less
than Hot Dipped Galvanized meeting requirements of ASTM A653, such as Simpson ZMAX. (G185). All screws, nails and bolts shall
match hangers and other connectors, and shall meet ASTM A123 for individual connectors, and ASTM A153 for fasteners.
For durability, it is our recommendation that connectors used in exposed conditions with treated limber be stainless steel.
Do not mix galvanized and stainless products.
Do not allow aluminum to contact treated wood.
* Lamented Veneer Lumber (L.V.L.): Fb = 2,600 psi, E = 1,900,000 psi.
* Studs: 2X6 Sprice Pine Fir No. 1/ No. 2 Grade.
*Roof Sheathing: 1
2" thick DOC-PS1 plywood APA 32/16 nailed.
*Wall sheathing: 7
16" thick DOC-PS1 plywood APA 24/16 nailed.
* Nailing per shall comply with IBC Table 2304.9.1 except where more or larger nailing shown on drawings.
* All roof rafters, joists, beams shall be anchored to supports with metal framing anchors.
* Provide continuous wall studs each side of wall openings equal to one half or greater of number of studs interrupted by openings.
* All wall studs shall be continuous from floor to floor or from floor to roof.
* Cross bridge all dimensional lumber roof and floor joists at midspan and provide solid blocking or rim joists at all joist supports and
joist ends.
* Solid blocking between trusses at bearings.
* Metal connectors: Simpson Strong Ties unless otherwise noted, install with number and type of nails to achieve maximum rated
capacity. Note that heavy duty and skewed hangers may require special order.
* All beams shall be braced against rotation at points of bearing.
* Unless otherwise indicated, install two lengths of solid blocking x joist depth x 12 inches long in floor framing under column loads.
Columns must have a continuous load path to foundation.
STRUCTURAL ERECTION AND BRACING REQUIREMENTS.
* The structural drawings illustrate the completed structure with all elements in their final positions, properly supported and braced. The
contractor, in the proper sequence, shall provide proper shoring and bracing as may be required to achieve the final completed structure.
* Fabricator and / or supplier of floor trusses shall submit shop and erection drawings for architectural and engineering review. Submit
two prints for each drawing. Allow ten working days for review. No materials shall be fabricated until shop drawings are approved