A simply supported W18×50 structural steel wide-flange beam has a span length of 15 ft. It is subjected to a concentrated load of 25,000 lb at midspan and a uniformly distributed line load of 350 lb per linear foot.
The uniform load includes the weight of the beam. The allowable tensile stress for the beam is 22,000 psi.
Calculate the maximum axial tensile force that may be applied to this beam at its ends.