a) A 14-ft. tall and12-ft.-8-in. long fully grouted reinforced masonry wall is constructed of 8-in.CMU. It is to be analyzed for out-of-plane loading. Construct thenP -nM curves for the wallwith the following three vertical reinforcement scenarios: (1) 10 No. 6 bars at 16 in. spacing,(2) 10 No. 5 bars at 16 in. spacing, and (3) 7 No. 4 bars at 24 in. spacing. The steel is Grade60 with a modulus of elasticity of 29,000 ksi, and the masonry has a compressive strength of2,000 psi. You may use Excel or Matlab to construct the curves. Also, show the maximumnPallowed by the code for each case.(b) For each of the above reinforcement scenarios, determine the maximum axial loads that arepermitted for the tension-controlled condition and transition condition.(c) Discuss how the amount of vertical reinforcement affects thenPn-Mn curve.
a) A 14-ft. tall and12-ft.-8-in. long fully grouted reinforced masonry wall is constructed of 8-in.
CMU. It is to be analyzed for out-of-plane loading. Construct thenP -nM curves for the wall
with the following three vertical reinforcement scenarios: (1) 10 No. 6 bars at 16 in. spacing,
(2) 10 No. 5 bars at 16 in. spacing, and (3) 7 No. 4 bars at 24 in. spacing. The steel is Grade
60 with a modulus of elasticity of 29,000 ksi, and the masonry has a compressive strength of
2,000 psi. You may use Excel or Matlab to construct the curves. Also, show the maximumnP
allowed by the code for each case.
(b) For each of the above reinforcement scenarios, determine the maximum axial loads that are
permitted for the tension-controlled condition and transition condition.
(c) Discuss how the amount of vertical reinforcement affects thenPn-Mn curve.
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