An A36 (Fy=248MPa, E=200GPa) WF steel column, which is part of a braced frame is loaded with an eccentric load Pu=68.4KN along the plane of the web "e" mm from its centroid. The column is laterally supported with Lb

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

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter10: Plate Girders

Section: Chapter Questions

Problem 10.7.3P

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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

An A36 (Fy=248MPa, E=200GPa) WF steel column, which is part of a braced frame is loaded with an eccentric load Pu=68.4KN along the plane of the web "e" mm from its centroid. The column is laterally supported with Lb<Lp with compact section with design moment strength of 54KN-m. Using L=4.4m and effective length factor of 0.7. The properties of the WF section are A=3,787mm², rx=69.77mm, ry=38.61mm. Calculate the maximum distance "e" in millimeters? Express your answer in 1 decimal place.

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