1.7 The column consists of a wooden post and a concrete footing, separated by a steel bearing plate. Find the maximum safe value of the axial load P if the working stresses are 1000 psi for wood and 450 psi for concrete.

1.7 The column consists of a wooden post and a concrete footing, separated by a steel bearing plate. Find the maximum safe value of the axial load P if the working stresses are 1000 psi for wood and 450 psi for concrete.

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter16: Lateral Earth Pressure

Section: Chapter Questions

Problem 16.15P

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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

Find the maximum allowable value of P for the column. The cross-sectional areas and working stresses (w) are shown in the figure. DRAW THE FREE BODY DIAGRAM.

1.7 The column consists of a wooden post and a concrete footing, separated by a
steel bearing plate. Find the maximum safe value of the axial load P if the working
stresses are 1000 psi for wood and 450 psi for concrete.
FIG. PI.7

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