Fatigue Behavior of Steel Light Poles

摘要

Standard light poles fabricated to California Department of Transportation standards were tested in fatigue. Comparative results were obtained from testing eight poles fabricated of ASTM A283 Grade D steel and six poles fabricated of ASTM A595 Grade A steel. The first six specimens of ASTM A283 had 45 degree fillet welds at the base of the arm and base of the pole while the ASTM A595 poles had unequal leg fillet welds. Since this difference in geometry affected the fatigue test results, two additional poles were fabricated and tested of ASTM A283 steel with unequal leg welds.