Answered: The W16x26 steel beam's compression…

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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Question

The W16x26 steel beam's compression flange is braced on 3.5-foot centers. The tension flange contains holes for 3/4 in diameter bolts in pairs at 2 ft centers to support a movable partition. Based on the figure, which of the following is most nearly the available flexural strength of the steel beam? (LRFD options
are in parentheses.)

(A) 57 ft-kips (85 ft-kips) (B) 67 ft-kips (100 ft-kips)
(C) 85 ft-kips (130 ft-kips) (D) 110 ft-kips (170 ft-kips)

Section properties
A = 7.68 in
d = 15.7 in
tw = 0.25 in
bf = 5.50 in
tf = 0.345 in
bf/2tf=7.97
h/tw=56.8 in
Ix = 301 in
Sx = 38.4 in³
rx = 6.26 in
3
Zx = 44.2 in³
Iy=9.59 in
Sy = 3.49 in³
ry= 1.12 in
3
Zy=5.48 in³
I
section view
Material properties
ASTM A992
Fy = 50 ksi
Fu = 65 ksi

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