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Home My WebLink AboutB17-1259 001-092-008BUTTE COUNTY y �l # s l SERVIC`E++S�+� r(fccc� Oi*✓ pp BUTTE COUNTY y # JV` ,1`2 l SERVIC`E++S�+� r(fccc� ql„ III III ROSS P. SHOAF, Civil Engineer Phone: (530) 749-0142 ENGINEERING CALCULATIONS and STRUCTURAL ANALYSIS For DETACHED GARAGE REMODEL Location: 2990 4th St., Biggs, California APN: 001-092-008 Job Number 17-159 Date: May, 2017 (Total I sheet) BUTTE ?'OFESSJO/V'' qe COUNTY C' R S/ -/o JUL 2 1 6 0 DEVELOPMENT SERVICES Exp-� C V1 07- C A Ig > BUTTE COUNTY DF.\rLL0PMrNT SERVICES REV11'7W9--D FOR Code applicable to this project is: CODE --- 12016 CBC & ASCE 7-10, as --�A- amended. By— - PROJECT: �.,13 Ross P. Shoaf, Civil Engineer Phone: (530) 749-0142 Job No.: Date: W7Sheetof 6A "k 5, oni Was \K4, 1 10-c' bL: E0 � ROSS P. SHOAF, Civil Engineer Phone: (530) 749-0142 PERMIT #-%��1 _- BUTTE COUNTY DEVELOPMENT SERVICES REVIEWED FOR CODE COMPLIANCE DATE =' ;> -- --By ENGINEERING CALCULATIONS and STRUCTURAL ANALYSIS BUTTE COUNTY For JUL 11;2 ZOV DETACHED GARAGE REMODEL DEVELOPMENT SERVICES 801%J1 Location: 2990 4th St., Biggs, California APN: 001-092-008 Job Number 17-159 Date: July, 2017 (Total 7 sheet) Q�tjF P. S UJ 0 Exp �rZtj`� cl orc Code applicable to this project is: 2016 CBC & ASCE 7-10, as amended. PROJECT: 171,110 Ross P. Shoaf, Civil Engineer Phone: (530) 749-0142 Job No.: Date: Sheet of G) � ( C)21 I t, o3 0 fi-i, (0t a vi =SOY- 12: 3�o�l LL ll - .._. 1 I _:IlU II PROJECT: Dhami Garage 2990 4th St, Biggs Ross P. Shoaf, Civil Engineer Job No.: 17-159 (530)749-0142 ''] Date: 7/12/17 Sheet �of DESIGN CRITERIA ASCE 7-10 WIND WIND CODE Uniform pressure both ways on building = Linear pressure on corners of exterior walls both ways on building = Governing combination = 0.6 VASD = 0.6 V ,SD = 0.6 ASCE 7-10 SEISMIC SEISMIC CODE 17.7 psf Conservatively taking the worst pressure in both directions. 53.1 IpIf D + 0.6 W 17.69 = 10.6 psf 53.08 = 31.8 plf E = r-0-0-8--1 D 0.60 D + 0.70 E V nsD = 0.700 0.08 = 0.06 D Description: Roof Description: Ext Wall ROOF DL R1 2 WALL DL W1 Roofing 2.5 Stucco 9 Sheathing 1.5 Sheathing 1.2 Frame 3 Frame 3 Ceiling 2.8 Gyp. Bd. 2.5 Insulation Insulation Sprinkling Misc Misc. Other TOTAL 9.8 TOTAL 15.7 FLOOR DL ; ., LIVE LOADS LL (psf) Dur. Roof 20 - 125 Snow Floor Deck Foot Print of bid = 447 sf Roof Pitch = 5 :12 WALL DEFAULTS: fixity FI to Fl, ft Flr thickness, ft PARTITION DL (Apply 100% to floors and 50% to roofs) Level 3 LIGHT 5 psf Level MOD 7.5 psf 4.6 HEAVY 10 psf Level 1 Cantilever 8 a V HEAVY 11.5 psf Building Ht. = 12.6 ft Mean building Ht. = 10.3 ft I--- --- - 1 PROJECT: Dhami Garaqe 2990 4th St. Biggs Ross P. Shoat, Civil Engineer Job No.: • 17-159 (530)749-0142 Date: 7/12/17 Sheet 3 of STRIP WORKSHEET ZONE TRIBUTARY WIDTHS ZONE WORKSHEET Zone Wnd Total t>taphragm ,+:-Seismic sett wei ht mass =:urtit wt X W ft2 X 0:06 rTofal W + Lm ft 1N� # W ft2 I type Ovr wrtsf E self #E ; lot 1752 ._ 1752 4, 4 1879 1879 238 38 370 W1 ; �` 151 389 - - _ —.W _ ;20U 11Y1 178 416 __ 1277 L231 1561277 _. - .-_ i « . VY1 _ _60 __4 291 (R F) H V —► Dead Load resisting moment based on: h W Wind 0.6 D Seismic 0.6 D T PROJECT: Dhami Garage 2990 4th St, Biqqs Ross P. Shoat, Civil Engineer Job No.: 17-159 (530)749-0142 Date: 7/12/17 Sheet + of [ �'}� COMPUTATION TABLES Zone Zone Zone D _. Wall Panels ft Wall RDS # 2822 Base Shear, lbs Max Panel Shear If Ave Panel Shear If USE RigWind P E rho*E v wind v seismic v wind v seismic A J 15 0" 1879 _ __. 389_ — 125. ?34 126_ 26 DESCRIPTION _ Existing siding &Gyp — B __.__... LTT19 w/ 518" Red Head Anchor 20 ^_ 1 0 1879 1277 416 -- 94 21 94 21 Bd_ Existin_sidin & G Bd. .-___, C 5.1 _.4, _ 5 A 1879 372 __ _ _2669 387 LL 250 76 250 7 i , 3/8' OSB w%8d 4 & 12 _D B 22 _.--_-- _. - ._.1277 _ 291 - 58 13 58 13. _ Existing siding & Gyp_Bd, Rhear riic4rihnfinn ti—a..�• Panel Zone D _. v wind # 1277 v seismic rho E(#) Zu _- RDS # 2822 WDL # ___ 2763 FDL Total DL # # 0 5586 Fixity Cantilever Holdown Load # USE Twind -1397 Tseismic 1G0? Holdown (Simpson CAT. # STABLE - No holdown re wired q 761 ??F 588 440 0 1028 Cantilever 894 117 __.__... LTT19 w/ 518" Red Head Anchor 526_ 490 327 0 817 Cantilever 9571b(7 __ ___ _ _ LTT19 w/ 518 Red Head Anchor_ _.4, _ 5 A 1879 372 __ _ _2669 0 3041 _ - Cantilever 311 -767 STABLE - No hot own regwred_ B 1879 41b 470 3140 0 3610 Cantilever 632 -967 STABLE - No holdovm rewired N. ISMIC RGnIIAInAK1 `V QA--1-1T*vn— Level Dir. BASE SHEAR Most heavily loaded aneI r max rho nl # I Iw I V nl Level Level F -B S -S 804 678 5 20 416 1 22 291 0.258 0.195 1.00 1.00 411? r max = Vpnl * (10 / Iw) / (Base Shear) rho = 2 - 20 / (r max * sgrt(AB)) Ab = foot print area = 447 sf Roof Sheathing: USE 7/16^ wi 8d @ 6&12 Y2 ( ( C710 7- 1 pf V of> VjY� PROJECT _Dhami Garage 2990 4th St Biggs Ross P. Shoaf, Civil Engineer Job No.: 17-159 (530)749-0142 Date: 7/12/17 Sheet 5 of 7 ASCE 7-10 Chaper 28 Envelope Procedure MWFRS Low -Rise Buildings Table 28.2-1 Step 1 Determine risk category of building, see Table 1.5-1 Risk Category: if Step 2 Determine the basic wind speed, V for applicable risk category see Fig 26.5-1A, B or C V = 110 mph From Figure 26.5-1A Step 3 Determine wind load parameters: Kd = 0.85 Table 26.6-1 Exposure category: B Topographical factor, Kzt= 1.0 See Section 26.8 and Fig. 26.8-1 Enclosure classification, see section 26.10 ENCLOSED Internal pressure coefficient = +/- 0.18 See Section 26.11 and Table 26.11-1 Step 4 Determine velocity pressure, Kh Table 28.3-1 mean roof height, h = 13 ft (From design criteria 12.25 ft ) Kz = 0.70 Step 5 Determine velocity pressure, qh EQ. 28.3-1 qh = 0.0026 0.7 1.0 0.85 110 ^2 = 18.43 psf Step 6 Determine external pressure coefficient, (GCp), using fig. 28.4-1 for flat roofs and gable roofs. roof slope = 20 degrees (GCp) CASE A CASE B building surface: 1 4 5 6 0.53 -0.43 0.4 -0.29 building surface: 1E 4E 5E 6E 0.8 -0.64 0.61 -0.43 Step 7 Calculate wnd pressure, p, from Eq. 28.4-1 Surfaces 1-4 direction: (Wall ends) P1 = ( 0.53- -0.43) 18.43 = 17.69 psf Surfaces 5-6 direction: (Gable ends) P2 = ( 0.4- -0.29) 18.43 = 12.72 psf Compute corner edge added wind loads Building Footprint: Overall width X Overall length 20 ft X 22 ft a = 3 ft See Fig. 28.4-1 note 9: CASE A: Surfaces 1 E -4E corners: P1 E _ ( 0.8- -0.64) 18.43 = 26.54 psf a= 3 f Additional corner pressure = (P1 E - P1) 2a = (26.5 -17.7) 6= 53.08 plf CASE B: Surfaces 5E -6E corners: P2E = ( 0.61 - -0.43) 18.43 = 19.17 psf Additional corner pressure = (P2E - P2) a = (19.2 -12.7) 3 = 19.35 plf PROJECT: Dhami Garage 2990 4th St, Biggs Ross P. Shoaf, Civil Engineer Job No.: 17-159 (530)749-0142 1 Date: 7112117 Sheet C of7 1 SEISMIC LOCATION OF SITE: CITY OF BIGGS Zip Code: 95917 INPUT DATA Seismic Parameters Site Coordinates Ss =0.596 Let = S1 = 60 = Site Class = D Stiff soil profile MCE Fa 32`77", Fv= Seismic Use Group = II IE = 1 building height, hn = 11 It Number of stories = 1 - (excluding basement) Diaphragms are Flexible Structure is ' 'Regular 1. Bearing Wali Systems - 15. Light -frame (wood) walls sheathed with wood structrual panels rated for shear resistance or steel sheets. Light frame construction? TRUE Response Modification Coeff, R = 6.5 system over -strength factor, omega, = 3 Deflection amplification factor, Cd = 4 Detail according to reference: 14.1 and 14.5 Limitations: Max building height restriction in seismic design category D = 65 Max building height restriction in seismic design category E = 65 Max building height restriction in seismic design category F = 65 ANALYZE DATA FOR MCE SMS = 0.596 1.32 = 0.789 SM1 = 0.271 1.858 = 0.504 SDS = 0.666 0.789 = 0.525 SD1 = 0.666 0.504 = 0.335 Seismic Design Category_ based on SDS D based on SD1 D SEISMIC DESIGN CATEGORY =I D SIMPLIFIED ANALYSIS OF SECTION 12.8.1.1 Ta = 0.12 IE Sds Max Min Cs = V = 1 0.53 = 0.08 0.4 0.02 6.5 R USE: Cs = 0.08 11 . _- —.. ___ _ :. ,.L_ _IJ ___._ ... __ 1 1.:1.1. Design Maps Summary Report Design Maps Summary Report User -Specified Input Report Title Dam! Garage 2990 4th St., Biggs, CA Sun July 9, 201.7 13:52:01 UTC Building Code Reference Document ASCE 41-13 Retrofit Standard, BSE -2N (which utilizes USGS hazard data available in 20013) Site Coordinates 39.41350N, 121.70826°W Site Soil Classification Site Class D - "Stiff Soil" USGS-Provided Output SS,BSE-2N 0.596 g SXS,BSE-2N 0.789 g S1,6SE-2N 0.271 g Sx1,SSE-2N 0.503 g a3 o.2 G'!S4 t3 5fi x.22 uf� U �a� z;:ra t EN G °rt a q412 Ate= fir? dpi 41= �. 19 C1 i. QUA} LLti7 C Ver tacd a 'ts"aJm Pef T') Although this information is a product of the U.S. Geological Survey, we provide no warranty, expressed or implied, as to the accuracy of the data contained therein. This tool is not a substitute for technical subject -matter knowledge. https:/ /earthquake.usgs.gov/cn2/designmaps/us/summary.php?tem plate...5e93.40981435&reportTitle=Dam i+Garage+2990+4th+St.%2C+Biggs%2C+CA 7/9/17,6:52 N Page 1 of 1 Get (at Long from Address Convert Address to Coordinates 7/9/17, 6:51 At -V LatLong. net » Home , Address to Lat Long » Lat Long to Address » Lat Long to DMS » DMS to Decimal Degrees >) Latest Places > Country List , Add Place >> Lat Long to UTM >> +LatLong >> C@Iatlong—net Get Lat Long from Address By using this geographic tool you can get the lat long coordinates from an address. Please type the address which would include the name of the city/town, state and street name to get more accurate lat long value. Also, the gps coordinates of the address will be calculated below. Address 2990 4th St., Blggs, CA Find Write city name with country code for better results. Latitude Longitude 39.413500 9.41 , L-121.708255 Lat Long GPS Coordinates Map Mouse Over Location ........... -- ...... ---- -------- --- ....... (39.413500, -121.708255) 390 24'48.6" N 0,0 1210 42'29.718" W Share this location link Location page url http://www.latlong.net/c/?Iat=39.413500&long' _:- 71� 108255 �1� http://www.latlong.net/convert-address-to-lat-fong.htmI Page 1 of 2