Consider the column section below. It has eight #9 bars. The material properties are as follows: fr=4,000 psi, f, = 60 ksi, and E. = 29,000 ksi . The cross-sectional area of a #9 bar is 1.0 in.2².8- #900002.5" 44Axis ofbending20"15" 2.5"20"PMIf the tensile strain in the reinforcing bars cannot be lower than 0.007 when its nominal momentcapacity is reached, using the principles of mechanics to determine the maximum axial loadnP, that can be carried by the column. Determine the corresponding nominal moment capacityMn. (you cannot use any design aid) (Ans: Pn = 246 kips, Mn = 460 kip-ft)

Firstly, we must determine the nominal moment capacity of the column in order to determine the…

Consider the column section below. It has eight #9 bars. The material properties are as follow =4,000 psi, ƒ, = 60 ksi, and E. = 29,000 ksi . The cross-sectional area of a #9 bar is 1.0 in.². 8- #9 0000 15" Axis of bending 0 00 0 20" P M

Consider the column section below. It has eight #9 bars. The material properties are as follow =4,000 psi, ƒ, = 60 ksi, and E. = 29,000 ksi . The cross-sectional area of a #9 bar is 1.0 in.². 8- #9 0000 15" Axis of bending 0 00 0 20" P M

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Beams

In structural engineering, a beam is a component made of a variety of materials (including steel alloys, and wood) that can resist loads applied laterally to the beam axis. Members, elements, rafters, shafts, and purlins are all terms used to describe beams.

Question

Consider the column section below. It has eight #9 bars. The material properties are as follows: fr
=4,000 psi, f, = 60 ksi, and E. = 29,000 ksi . The cross-sectional area of a #9 bar is 1.0 in.2².
8- #9
0000
2.5" 44
Axis of
bending
20"
15" 2.5"
20"
P
M
If the tensile strain in the reinforcing bars cannot be lower than 0.007 when its nominal moment
capacity is reached, using the principles of mechanics to determine the maximum axial load
n
P, that can be carried by the column. Determine the corresponding nominal moment capacity
Mn. (you cannot use any design aid) (Ans: Pn = 246 kips, Mn = 460 kip-ft)

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