QUESTION 1 [25 points] Consider a beam cross-section in Figure Q1. The beam is subjected to unsymmetrical bending. The beam is loaded in such a way that the maximum moments are $+ 1.5 P Nm$ and $? 1.1 P Nm$ , where $P$ is the point load in Newtons, applied mid-span. The moment of inertia is $18000 cm^{4}$ for the beam. Determine the maximum safe value of "P" if the working stresses are $?_{c} =$ $12 kPa$ in compression, and $?_{t} = 3.5 kPa$ in tension. Figure 01.

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QUESTION 1 [25 points] Consider a beam cross-section in Figure Q1. The beam is subjected to unsymmetrical bending. The beam is loaded in such a way that the maximum moments are

+ 1.5 P Nm

and

? 1.1 P Nm

, where

P

is the point load in Newtons, applied mid-span. The moment of inertia is

18000 cm^{4}

for the beam. Determine the maximum safe value of "P" if the working stresses are

?_{c} =

12 kPa

in compression, and

?_{t} = 3.5 kPa

in tension. Figure 01.

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