2. A steel (hot-rolled section) column is subjected to axial load P=50KN and a bending moment of 75KN-m on strong axis. The column is 9m long and laterally supported about its weak axis at midheight. The steel is A36 steel with F, = 248MPA. Effective length factor K=1.0. The allowable bending stress on strong axis is 114MPA and the allowable bending stress on weak axis is 85MPA. The properties of the section are as follows: d by 59.5 = 10.5 r; = 150mm d = 345mm S, = 0.00015m A = 5,6000 mm? tw 2t, ry = 47.5mm r = 42.5mm by = 190mm Determine the following: a. Computed axial stress b. Computed bending stress c. The value of the interaction equation. (For the computation of the allowable compressive stress Fa and allowable flexural stress F, apply NSCP 2015).
2. A steel (hot-rolled section) column is subjected to axial load P=50KN and a bending moment of 75KN-m on strong axis. The column is 9m long and laterally supported about its weak axis at midheight. The steel is A36 steel with F, = 248MPA. Effective length factor K=1.0. The allowable bending stress on strong axis is 114MPA and the allowable bending stress on weak axis is 85MPA. The properties of the section are as follows: d by 59.5 = 10.5 r; = 150mm d = 345mm S, = 0.00015m A = 5,6000 mm? tw 2t, ry = 47.5mm r = 42.5mm by = 190mm Determine the following: a. Computed axial stress b. Computed bending stress c. The value of the interaction equation. (For the computation of the allowable compressive stress Fa and allowable flexural stress F, apply NSCP 2015).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Analysis for Combined Axial and Flexural Loading
Transcribed Image Text:2. A steel (hot-rolled section) column is subjected to axial load P=50kN and a bending moment of 75kN-m on
strong axis. The column is 9m long and laterally supported about its weak axis at midheight. The steel is A36
steel with F, = 248MPa. Effective length factor K=1.0. The allowable bending stress on strong axis is 114MPA
and the allowable bending stress on weak axis is 85MPA.
The properties of the section are as follows:
d
A = 5,6000 mm?
= 59.5
tw
10.5 r, = 150mm d= 345mm
2t,
by = 190mm
ry = 47.5mm
r; = 42.5mm
S, = 0.00015m
Determine the following:
a. Computed axial stress
b. Computed bending stress
c. The value of the interaction equation. (For the computation of the allowable compressive stress Fa and
allowable flexural stress F,, apply NSCP 2015).
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