Point load at the mid-span of a simply supported beam

Thread Content

This post was last edited by jmdc on 2017-11-15 at 13:06. With both ends welded to the embedded plate secured by expansion bolts, can such a steel beam be considered a simply supported beam for design verification? Is it more conservative and safer to simplify all the loads on the beam as a concentrated load at the mid-span when conducting design checks (including bending normal stress, shear stress, torsional stress, deflection, stability, etc.)? Is the situation of a concentrated load at the mid-span of a simply supported beam one of pure bending, so that there is no need to check the shear stress strength? Generally, the normal stress due to bending can be ensured, and the shear stress as well as deflection and stability can basically be guaranteed as well – so isn’t it unnecessary to carry out calculations? If it is necessary to verify the shear stress strength, which is greater, the bending shear stress or the shear stress? Which of these two should be used for the verification?