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primary STRUCTURES <br />Gravitv Loads @ Roof <br />DL (E)15 pi LL (E)20 psf (roof LL) <br />+ DLev 3.2 psf <br />DL c./ pv)18.2 psf L4w/PV)0 psf (no LL) <br />Existing: (DL+LOCE)'AR 74,970 # <br />Proposed: (DL+LL)(QAR+(DLev-LkE))'Apv 72,274 # <br />-2,696 #Net decrease in <br />gravity load @ roof <br />Seismic Analvsis (ASCE 7-05.12.81 <br />R 6.5 (Table 12.2-1)Site Class D (Sec. 11.4.2) <br />I 1.0 (Table 11.5-1)Occupancy II (Table 1-1) <br />p 1.3 (Sec. 12.3.4)SDC D or E (Sec. 11.6, worst case) <br />ViE)32,130 #SDS 2.00 (Eq. 11.+3) <br />W(w/ PV)32,647 #Q 0.40 (Eq. 12.8-2) <br />V(E) 12,852 # <br />V(w/PV)13,059 # %change:1.6% <50/0, no further analysis <br />required <br />Wind/Anchoraae Desian (ASCE 7-05.6.4 & 2005 NDS) <br />Exposure B (Sec. 6.5.6.3)Roof Height 25'(Fig. 6-3) <br />A 1.00 (Fig. 6-3)Wind Speed 85 mph (Fig. 6-1) <br />K. 1.00 (Eq. 6-3)Roof Slope 7° to 27°(Fig. 6-3) <br />I 1.00 (Table 6-1)Amb 10 fd (2.5')<4' max) <br />Zone 1 (Fig. 6-3)Pnet30 11.9 psf (Fig. 6-3) <br />Pnet 11.9 psf (Eq. 6-1) <br />Tmax - (Pnet - 0•6 Dlev)'Amb 100 # <br />Use: 5/16" lag screw W 266 #/in Co 1.6 <br />D 2.5 " embed.Q 0.8 <br />D'CDCW 851 # >100 #, use 5/16" lagPallow = <br />screw w/ 2.5" embed. <br />Roof Rafter Analvsis (2005 NDS) <br />(E) Size 2x6 @ 24" oc Sx 7,6 in3 <br />Span 14 ' 4 20.8 in'; <br />Wood Grade DF #2 Qize 1.3 <br />Fb 900 psi Co 1.6 <br />E 1,600 ksi repetative 1.15 <br />WDL 36.4 pif Fb 2,153 psi <br />Pmax 132 # M+max 1,355 #-ft <br />Pmax 100 #Mmax 187 #-ft <br />(locating P+/P- @ mid-span, for Mmax) <br />fb =max{IM+/STI, IM7Sxl}2,151 psi <2153 psi <br />Avind 1.34 "(E) Rafters OK <br />4125 (adequate for wind loading) <br />Tconn. =Trnax - 0.6'vvoL'L2 <br />-53 # < 339 # (3-8 toenails per 2005 NDS) <br />based on worst case conn. w/ entire Tmax applied <br />(E) Rafters Conn. OK <br />Stephan Residence - Photovoltaic Panel Array Addition <br />1631 5 Spruce Street Santa Ana, CA 92704 <br />09/09/13 <br />Page 2 of 2 <br />.. <br />*4 <br />I,I -