Moving dynamic loads caused by bridge deck joint unevenness - a case study

Abstract

This paper focus on the general guidelines regarding maximum unevenness from bridge deck joints for typical South African heavy vehicles, in order to minimize the generation of moving variable loads. In a recent investigation it was found that areas of isolated rutting was identified at certain constant distances away from a major bridge on a highway in South Africa. On investigation, it was found that the bridge deck joint was protruding above the adjacent road and bridge surface by approximately 10 millimeter. Closer inspection showed that definite moving variable loads were generated by the heavy vehicles that passed over the joint. The paper also focus on the output from these simulations.