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The minimum beam depth is addressed in Chapter 9 of the ACI (American Concrete Institute) standards, which focuses on reinforced concrete design and includes guidelines for various structural components, including beams. This chapter specifically deals with the design of flexural members, and it provides parameters for determining the effective depth of beams to ensure they adequately support loads and meet serviceability requirements.
Chapter 9 outlines criteria for the width and depth of beams, including the minimum depth based on the span and the type of loads they will carry. These guidelines are grounded in principles of structural integrity and material efficiency, ensuring that beams are not only structurally sound but also economical.
Other chapters cover different aspects of concrete design, such as detailing, shear, and serviceability but do not specifically address minimum depth requirements for beams. Thus, the guidelines in Chapter 9 are essential for engineers to design effective beams while complying with ACI regulations.