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HomeMy WebLinkAbout7622 Roberson Structural Calculations 200422Harriott Valentine Engineers Inc. STRUCTURAL CALCULATIONS Project: Roberson Remodel 7622 175th St SW Edmonds, WA Architect: Loren Hill Structural Engineer: Harriott Valentine Engineers, Inc. 1932 First Avenue, Suite 720 Seattle, WA 98101 tel. 206-624-4760 I RECEIVED May 05 2020 CITV OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT 1932 First Avenue, Suite 720 Seattle, Washington 98101-2447 4/22/2020 tel. 206-624-4760 1 fax 447-6971 Page of Melton framing Rafter, Use 2x6 Li = 1.5 ft, L2 = 1 ft w = 15 psf DL + 25 psf SL * 1.33 ft trib = 53.2 plf R; = 22.2 lb Rj = 110.8 lb V = 57.6 lb Vr = 950 lb M = 27 lb-ft Mr = 920 lb-ft 0 = .001 in, L/12000 Skylight header, Use (2)2x6 L=8ft w = 15 psf DL + 25 psf SL * 2 ft trib = 80 plf R;=R;=320lb V = 320 lb Vr = 2180 lb M = 640 lb-ft Mr = 2230 lb-ft A = .14 in, L/685 Use LUS26-2 hanger, Vr = 1090 lb Skylight rafter, Use (2)2x6 Li=3.66ft, L2=1ft w = 15 psf DL + 25 psf SL * 1.33 ft trib = 53.2 plf P=320lb, L=1.08ft, L=3.08ft R; = 367 lb Rj = 522 lb V=469lb Vr = 1650 lb M = 365 lb-ft Mr = 1390 lb-ft A = .016 in, L/2745 Drop beam, Use 4x10 DF #1 L = 12.08 ft P=522, L=1.25, L=9.25 w = 110.8 lb / 1.33 ft = 83.4 plf, L=9.25-12.08 R; = 618 lb Rj = 663 lb V = 663 lb Vr = 4470 lb M = 1540 lb-ft Mr = 5740 lb-ft 0 = .094 in L/1542 Use 4x4 post Use 12 in dia sonotube footing P = 663 lb Pr = 2000 psf * (Ti * .52) ftz = 1570 lb