Engineering CalcsCopyright 2021, SEGA Engineers
STRUCTURAL CALCULATIONS
FOR THE
SOUNDBUILT HOMES RESIDENTIAL PROJECT
Plan 2603
December 1, 2021
Job No. : 12-034
Location: Lots 201 - 398, Tahoma Terra
Yelm, Washington
SEGA Engineers
Structural & Civil Consulting Engineers
22939 SE 292nd PL (360) 886-1017 Black Diamond, WA 98010
1 1 1 12222////01010101////21212121
Copyright 2018, SEGA Engineers
STATEMENT OF WORK
SEGA Engineers was asked to provide a lateral loads analysis, shear wall
design, review of major framing members and foundation, and drawing red-lines
for a two-story wood framed single family residence. The roof framing is
manufactured trusses, the floor framing is 2x dimensional or open-web trusses,
and the foundation is typical concrete strip footings with a crawl space.
The application and use of these calculations is limited to a single site
referenced on the cover sheet. The cover sheet should have an original
signature in blue ink over the seal. The attached calculations may or may not
apply to other sites and the contractor assumes all responsibility and liability for
sites not expressly reviewed and approved. Please contact SEGA Engineers for
use at other sites.
SEGA Engineers will use that degree of care and skill ordinarily exercised under
similar circumstances by members of the engineering profession in this local. No
other warranty, either expressed or implied is made in connection with our
rending of professional services. For any dispute, claim, or action arising out of
this design, SEGA Engineers shall have liability limited to the amount of the total
fee received by SEGA Engineers.
Questions regarding the attached should be addressed to SEGA Engineers.
Greg Thesenvitz, PE/SE
SEGA Engineers
SEGA Engineers Project Plan 2603
Copyright 2021, SEGA Engineers
SEGA Engineers Project Plan 2603SEGA Engineers Project Plan 2603
Structural & Civil Consulting Engineers Structural & Civil Consulting Engineers Structural & Civil Consulting Engineers
Job No.12-034 By:GATJob No.12-034 By:GATJob No.12-034 By:GAT
22939 SE 292nd PL (360) 886-101722939 SE 292nd PL (360) 886-1017
Black Diamond, WA 98010 Checked Date:01/28/21 Sht 1 Black Diamond, WA 98010 Checked Date:01/28/21 Sht 1
Design CriteriaDesign CriteriaDesign Criteria
International Building Code (IBC), 2018International Building Code (IBC), 2018International Building Code (IBC), 2018
LOADSLOADSLOADS
RoofRoofRoof
DL 15 psfDL15psf
LL 25 psfLL25psfLL25psf
FloorFloorFloor
DL 12 psfDL12psf
LL 40 psfLL40psfLL40psf
WindWindWind
Risk Category IIRisk Category IIRisk Category II
Design Wind Speed 110 mph (Vult)Design Wind Speed 110 mph (Vult)Design Wind Speed 110 mph ult
Kzt 1.00Kzt1.00zt
Exposure BExposureB
SeismicSeismicSeismic
Design Category DDesign Category DDesign Category D
SDS 1.00SDS1.00DS
Response Factor 6.5Response Factor 6.5
C =0.154CS =0.154CS =0.154
Importance Factor 1.00Importance Factor 1.00Importance Factor 1.00
SoilSoilSoil
Allowable Bearing 1,500 psfAllowable Bearing 1,500 psfAllowable Bearing 1,500 psf
Copyright 2021, SEGA EngineersCopyright 2021, SEGA Engineers
SHEAR WALL SCHEDULESHEAR WALL SCHEDULESHEAR WALL SCHEDULEMarkMinimumSheathing AnchorRemarks (4)MarkMinimumSheathing AnchorRemarks (4)MarkMinimumSheathing AnchorRemarks (4)Sheathing (1)Nailing (1)Bolts (3)Sheathing (1)Nailing (1)Bolts (3)Sheathing (1)Nailing (1)Bolts (3)A1/" OSB or8d @ 6" o.c.5/8" @ 60" o.c.Qall = 230 plfA1/2" OSB or8d @ 6" o.c.5/8" @ 60" o.c.Qall = 230 plfA/2" OSB or8d @ 6" o.c.5/8" @ 60" o.c.Qall = 230 plfCDXCDXCDX1/" OSB orB1/2" OSB or8d @ 4" o.c.5/8" @ 32" o.c.Qall = 350 plfB1/2" OSB or8d @ 4" o.c.5/8" @ 32" o.c.Qall = 350 plfB28d @ 4" o.c.5/8" @ 32" o.c.Qall = 350 plfCDX CDX CDX RSee Detail 12/S2.0 for ConstructionRSee Detail 12/S2.0 for ConstructionRSee Detail 12/S2.0 for ConstructionNotes:Notes:Notes:1)All walls designated " " are shear walls. Exterior walls shall be sheathed with rated sheathing1)All walls designated " " are shear walls. Exterior walls shall be sheathed with rated sheathing1)All walls designated " " are shear walls. Exterior walls shall be sheathed with rated sheathing(24/0, OSB or CDX) and nailed at all panel edges (Blocked) per schedule (uno). Nailing at (24/0, OSB or CDX) and nailed at all panel edges (Blocked) per schedule (uno). Nailing at (24/0, OSB or CDX) and nailed at all panel edges (Blocked) per schedule (uno). Nailing at intermediate framing to be at 12" oc. Nailing not called out shall be per IBC Table 2304.10.1.intermediate framing to be at 12" oc. Nailing not called out shall be per IBC Table 2304.10.1.intermediate framing to be at 12" oc. Nailing not called out shall be per IBC Table 2304.10.1.2)Holdowns and other framing hardware by Simpson or equal to be used per plan. Ends of shear 2)Holdowns and other framing hardware by Simpson or equal to be used per plan. Ends of shear 2)Holdowns and other framing hardware by Simpson or equal to be used per plan. Ends of shear walls shall use double studs minimum (UNO).walls shall use double studs minimum (UNO).walls shall use double studs minimum (UNO).3)Use minimum of (2) bolts per sill piece with one bolt located not more than 12" nor less than 5"3)Use minimum of (2) bolts per sill piece with one bolt located not more than 12" nor less than 5"3)Use minimum of (2) bolts per sill piece with one bolt located not more than 12" nor less than 5"from each end of the piece. Embed bolts a minimum of 7" into concrete.from each end of the piece. Embed bolts a minimum of 7" into concrete.from each end of the piece. Embed bolts a minimum of 7" into concrete.4)Allowable loads are permitted to be increased by 40% for wind design in accordance with4)Allowable loads are permitted to be increased by 40% for wind design in accordance with4)Allowable loads are permitted to be increased by 40% for wind design in accordance withAF&PA SDPWS Table 4.3A.AF&PA SDPWS Table 4.3A.AF&PA SDPWS Table 4.3A.