Cpmgedefouk

F' c = concrete compressive design strength at 28 days (units of psi when used in equations) Deformed reinforcing bars come in grades 40, 60 & 75 (for 40 ksi, 60 ksi and 75 ksi yield strengths) Sizes are given as # of 1/8" up to #8 bars For #9 and larger, the number is a nominal size (while the actual size is larger) b 1 f cc ' e f f c g7 D of the W = 7 W of the W 12 S of the Z 66 B of the B 52 C in a P (WJs) 13 S in the USF 18 H on a G C 39 B of the O T 5 T on a F 90 D in a R A 3 B M (S H T R) 32 is the T in D F at which W F 15 P in a R T 3 W on a T 100 C in a R 11 P in a F (S) T 12 M in a Y 13=UFS 8 T on a O 29 D in F in a L Y 27 B in the N T 365 D in a Y 13 L in a B D 52 WFg T T T a a T F N W F mg kg m s N g g ( ) 0 1078 (11 )( 98 / 2) 107 8 = → = = = = = = T T Fg T (b) a = 0 →T = Fg =107 8 N T Fg T Fg T T (c) a = 0 →T = Fg =107 8 N In all three cases the scale is not accelerating, which means that the two cords exert forces of equal magnitude on it The scale reads ...