Problem Statement

One-Way Slab Analysis and Design (ACI 318-14)

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A one-way slab is a type of reinforced concrete floor system designed to carry loads predominantly in one direction. Typically, the ratio of the longer span length to the shorter span length in this system is greater than or equal to 2. In a one-way slab system, the reinforcement is primarily provided in the shorter span direction to resist the applied loads. However, minimum reinforcement is provided in the longer span direction to account for temperature and shrinkage effects.

This example will demonstrate the analysis and design of the one-way reinforced concrete slab shown below using ACI 318-14 provisions. Steps of the structural analysis, flexural design, shear design, and deflection checks will be presented. The results of hand calculations are then compared with the reference results and numerical analysis results obtained from the spBeam engineering software program by StructurePoint.

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Figure 1 – Continuous One-Way Concrete Slab Floor System