Engineering CalcsCopyright 2018, SEGA Engineers
STRUCTURAL CALCULATIONS
FOR THE
SOUNDBUILT HOMES RESIDENTIAL PROJECT
Plan L2-2048-2
May 10, 2018
Job No. : 13-044
Location: Lots 245 - 251, Tahoma Terra
Yelm, Washington
SEGA Engineers
Structural & Civil Consulting Engineers
22939 SE 292nd PL (360) 886-1017 Black Diamond, WA 98010
0 0 0 05555////10101010/1/1/1/18888
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 wood I-joists, 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 L2-2048
Copyright 2017, SEGA Engineers
SEGA Engineers Project L2-2048SEGA Engineers Project L2-2048
Structural & Civil Consulting Engineers Structural & Civil Consulting Engineers Structural & Civil Consulting Engineers
Job No.13-044 By:GATJob No.13-044 By:GATJob No.13-044 By:GAT
22939 SE 292nd PL (360) 886-101722939 SE 292nd PL (360) 886-1017
Black Diamond, WA 98010 Checked Date:04/11/17 Sht 1 Black Diamond, WA 98010 Checked Date:04/11/17 Sht 1
Design CriteriaDesign CriteriaDesign Criteria
International Building Code (IBC), 2015International Building Code (IBC), 2015International Building Code (IBC), 2015
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 2017, SEGA EngineersCopyright 2017, SEGA Engineers
SHEAR WALL SCHEDULESHEAR WALL SCHEDULESHEAR WALL SCHEDULEMarkMinimumSheathingAnchorRemarks (4)MarkMinimumSheathing AnchorRemarks (4)Sheathing (1)Nailing (1)Bolts (3)Sheathing (1)Nailing (1)Bolts (3)15A1/2" OSB or8d@6"oc5/8"@60"ocQall = 230 plfA/2 OSB or8d @ 6 o.c./8 @ 60 o.c.Qall = 230 plfCDXCDXB1/" OSB or8d@4"oc5/"@32"ocQall = 350 plfB1/2" OSB or8d @ 4" o.c.5/8" @ 32" o.c.Qall = 350 plf2@8@QpCDXCDXCDXC1/" OSB8d@3"5/" @ 16"Q ll 450 lfC1/2" OSB or8d @ 3" o.c.5/8" @ 16" o.c.Qall = 450 plfC/2 OSB or8d @ 3 o.c./8 @ 16 o.c.Qall 450 plfCDXUii 3dCDXUse minimum 3x studsCDXUse minimum 3x studstbtti ldat abutting panel edgesat abutting panel edgesdt iland stagger nails.and stagger nails.RSee Detail 12/S2 0 for ConstructionRSee Detail 12/S2.0 for ConstructionNtNotes:Notes:1)All ll d i t d " " h ll E t i ll h ll b h th d ith t d h thi1)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 CDX) d il d t ll l d (Bl k d) h d l ( ) N ili t(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 i t di t f i t b t 12" N ili t ll d t h ll b IBC T bl 2304 9 1intermediate framing to be at 12" oc. Nailing not called out shall be per IBC Table 2304.9.1.intermediate framing to be at 12 oc. Nailing not called out shall be per IBC Table 2304.9.1.2)Holdowns and other framing hardware by Simpson or equal to be used per plan Ends of shear2)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")() p pfrom each end of the piece Embed bolts a minimum of 7" into concretefrom each end of the piece. Embed bolts a minimum of 7" into concrete.p4)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 with)pygIBC Section 2306 3IBC Section 2306.3.