True or False 1. The ACl Code provision for a minimum amount of reinforcement ap

Question

True or False 1. The ACl Code provision for a minimum amount of reinforcement applies only to one-way slabs. 2. The analysis and design of reinforced concrete structures are separable in practice. 3. Maximum usable strain at extreme concrete compression fiber shall be assumed equal to 0.3% 4. The yield stress, the ultimate tensile stress, and the modulus of elasticity of all structural steel shape decrease with increase temperature except for HSS-Shapes. 5. The minimum stipulated in ACI table 9.5(a) shall apply to all one-way slabs, unless computation of deflection indicates a larger thickness can be used without adverse effect.

Explanation / Answer

1) ACI code provision is one of the design codes for concrete structures construction.

as the concrete structures involve both one way and two way slabs .it is used for both type of slabs.

ans: False

2) ans: true

the analysis and design are seperate in practice.

3) ANS: true

4) ans:true

the tensile properties depend on temperature. yield stress,ultimate tensile stress and modulus of elasticity decreases with increase in temperature.where as ductility commonly increases.

5) true

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