Question

ARC2580 STRUCTURES 1 HOMEWORK DUE 7-1-20 S. BRASGALLA, INSTRUCTOR NAME 18'-" 18'-0" Girder G-4 20-0" BEAM B-2 JOIST J-1 Typical joist spacing 1-4" BEAM B-3 14'-0" (NOTE: FIGURE IS NOT TO SCALE DO NOT COUNT THE JOISTS. REFER ONLY TO THE WRITTEN SPECIFICATIONS FOR SPACING OF MEMBERS) Design Criteria Dead load = 25 psf Live load = 35 psf Design load = 60 psf Problem 1. - Joist J-1 PREPARE A LOADING DIAGRAM OF JOIST J-I. USING THE FORMULAS, CALCULATE THE MAXIMUM SHEAR AND MOMENT VALUES FOR THE LOADING CONDITION Problem 3. - Beam B-3 PREPARE A LOADING DIAGRAM OF BEAM B-3 USING THE FORMULAS, CALCULATE THE MAXIMUM SHEAR AND MOMENT VALUES FOR THE LOADING CONDITION M. MAX MAX. Vmax M. MAX

Answer 1

Solution:

No Given :- Length of Joist span= 18 ft. spacing beth adjecent joist=1'4"- 1.333 ft. Beam B3= span - 20 ft. D. L=250sf .. L.L = 35pst. Design Load - Wu-Gopst. @ Solution! الح I Joistrit • Ude on joist :-)2xWu xe) (Each ). = 2*(60x1.933). = 80 eb.lft. F. B.D. of Joistay. 80 eblft 18- R R. we = . Reaction, Re 80x18 2 Vuman = R=720 lb. ~0.72 kips moment, Mumas Mumon =3240 lb-ft we? 80x0812 8 8 3.240k-ft

Miho. Beam B3 : • No. of Joist on B3 = 20 ft 1.333 ft -1-15 Nos. 1 = 14 Nos Joisty No-14; P=7206b. [email protected] L=2oft @ Vyman :-) Reaction = R="exnxP 1 x14x 720 lb Vumore 504006. 5.04 lip. b Mu more :-). (foon an even number). Mumax. = PL nentas nti = 720 x 20 14814123 8 16+1 Mumans =26880. lb-ft ~ 26.88K-ft. (14