True or False. determine whether the statements below are true or false per ACI 318-19 Code a) For beams built integrally with supports, Vu at the support is NOT permitted to be calculated at the face of the support. b) When the beam's depth is smaller than 10 in. and øA/T¿'bwd < V, < ¢V. a minimum shear reinforcement is required to be provided. c) In all cases, Ve shall be calculated as the least of the values calculated per Equations (a) through (c) in Table 22.5.5.1. d) The shear strength of concrete Ve of a beam with axial compression is higher than that of a beam with the same dimension but no axial compression. e) For a 90-degree hooked No. 8 bar, the minimum straight extension is 10 in. ) Calculated tension in reinforcement at each section of a member is required to be developed on only one side of that section by embedment length; hook; or headed bar. g) Hooks and heads shall not be used to develop bars in compression. h) Development length for a straight deformed bar shall be calculated as the smaller of values per the equations given in Table 25.4.2.3 and Equation 25.4.2.4a. i) Bars of different sizes are not permitted to be lap spliced in tension. j) Compression lap splices shall not be used for bars larger than No. 11.

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Question 2 Using the Method of Sections find the force in member JK. 15 kips 20 kips 20 kips 10 kips C D Ligh K H A B J 6 bays @ 15'-0" = 90'-0" Upload Choose a File M G N 12'-0"

So= 0.005 6 ft M = 0.015 5ft FIND Q 2 ft 2/3/2 -1.486 AR S, Prtm = 14.7 pora CROSS - SECTION

Two beams have the same section. Calculate maximum factored loads as shown below for case (a) and (b) aj bj 1 8m 8m 2-20M SO 5 I A Section for (a) and (b): 350mm BB fé= ↓ Pman = ? 0 ooo 4-25M = 30MPa fy=400мра &man = ? 450mm IS A B 650m ↑ 200mm

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Problem 2: Determine the allowable service live load, WL on a cantilever beam assume the dead load is due to the beam weight f'c = 4 ksi, fy= 60 ksi, Dc= 150 pcf. 5" 25" 4-#8 10" 10" W₁ ▼ ▼ 10"

The service load bending moments on a beam are 128 kip-ft for dead load and 107 kip-ft for live load. The beam is 12 in. wide, f'c is 3000 psi and fy is 60 ksi. Determine Mu. Mt. p. R. the depth of the beam and the As of tensile reinforcing required. How many no. 8 bars or No. 10 bars would have the required As?

Select the lightest 14-inch-nominal-depth W beam to carry the load shown.