Stress determination in reinforced I-section bottom flange of single girder crane

Abstract

Rapid development of industry has brought to a growing need for installation of single girder bridge cranes and monorail tracks. "I" section has been recognized as the most appropriate one for the main girder. Limitations in their usage can appear due to the loss of lateral stability or occurrence of local stress increase under trolley wheels when total stresses go beyond the limit values. The paper considers the references of number of authors for calculating the stress in the zone of wheel and section contact in order to determine its carrying capacity. Comparison was made between obtained and finite element method (FEM) results and experimental researches. On the base of comparison, designers were given the references that can be of great importance for choice of calculation method from the point of determining the maximum stress values of "I" section bottom flange.