Stresses in rails. Measurement of stress caused by tightening fishbolts and by applying vertical loads at joints in B.S. 110A F.B. rail section using three different types of fishplate (E-476)

Static loading tests have been carried out on joints in short lengths of B.S. 110A F.B. rail using standard unworn 109 lb./yd., machined 109 lb./yd. and U. I. C. pattern fishplates. Electric strain gauge readings were taken at points on the peripheral surfaces of the fishbolt holes, on the rail...