Estudo de viabilidade estrutural: determinação da capacidade de carga de um perfil composto de sucata de trilho ferroviário, tipo 2tr68, submetido a esforço de flexão simples

Abstract

The Brazilian railway network is the largest in Latin America and is mainly used for cargo transportation. Within this context the generation of a large quantity of scrap from rails worn and fatigued by the use is verified, part of which is destined to the recycling in steelmakers and another considerable one, is reused for different purposes for which they were produced, Foundation stakes, beams, supports, fenders and so on. The present work refers to the study of reuse of railroad scrap type 2TR68 for structural purposes as "giants" in an elastic curtain of landfill containment. To do so, it was necessary to recapitulate the studies of the strength of the materials, safety factors, tensile tests and retaining walls. The architectonic and structural scheme, the loadings on the curtain and the transmission of the efforts of this one on vertical beams, called "giants", that are the ones responsible for transferring the efforts to the foundation soil were also elaborated. From this structural model the requests were calculated and the part was dimensioned. According to the technical norms pertinent to the subject, specimens were obtained from material obtained from Companhia Vale from the Estrada de Ferro Carajás, from which traction tests were performed using the Emic universal testing machine DL10000 in conjunction with the Tesc software Version 3.05 which generated reports containing the data of the test specimens, the values obtained by the test and the graph of the strain x strain curve