A flexural member is fabricated from two flange plates 1/2in x 16in and a web plate 1/4in x 20in. The yield stress of the steel is 50 ksi. a. Compute the elastic section modulus S and the yield moment My with respect to the major principal axis. b. Compute the plastic section modulus Z and the plastic moment Mp with respect to the major principal axis.

A flexural member is fabricated from two flange plates 1/2in x 16in and a web plate 1/4in x 20in. The yield stress of the steel is 50 ksi. a. Compute the elastic section modulus S and the yield moment My with respect to the major principal axis. b. Compute the plastic section modulus Z and the plastic moment Mp with respect to the major principal axis.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter5: Beams

Section: Chapter Questions

Problem 5.2.1P

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Concept explainers

Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.

Question

A flexural member is fabricated from two flange plates 1/2in x 16in and a web plate 1/4in x 20in. The
yield stress of the steel is 50 ksi.
a. Compute the elastic section modulus S and the yield moment My with respect to the major
principal axis.
b. Compute the plastic section modulus Z and the plastic moment Mp with respect to the major
principal axis.

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