Abstract
A beam curved horizontally through an angle of 90° and resting on four supports is analyzed for maximum torque, shear, moment, deflection, and rotation when the beam carries a uniform load. Three types of curved box beams were fabricated and tested with five concentrated loads placed symmetrically on the curved part of the beam to assimilate uniform loading. Unit strains were measured at critical points on the beam by means of SR-4 electrical strain gages.A new method of design for closed section curved beams and a theoretical development for determining rotation and longitudinal warping stresses are included herein.
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