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A client brief needs to choose the type of support for a beam of length 4m for three different loading cases, as mentioned below.

1. A concentrated load of 2kN acting at the midpoint of the beam.

2. A uniformly distributed load of 2kN/m throughout the length of the beam.

3. Two varying loads of 2kN/m acting at either end and uniformly increasing towards the midpoint of the beam.

The client is interested in choosing either simple supports, cantilever supports or fixed supports. You are expected to help the client conclude by showing shear force and bending moment diagrams of all three support types in the loading cases mentioned above. Computing the value of bending stress in each case will be very helpful for the client to make the decision. The client also wants to select a standard rolled steel section for the simple support beam with a 2kN point load at the midpoint. If the ultimate tensile strength is 500 MPa and a factor of safety of 6 can be assumed, select a standard rolled steel I section for the beam and justify your selection.

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