Investigation of influence of the metal corrugated pipe diameter on its stress-strain state
Journal Title: Вісник Тернопільського національного технічного університету - Year 2018, Vol 91, Issue 3
Abstract
Metal corrugated structures require both high design quality and quality of construction. Significant contribution to the damage initiation and the MCS fracture can be caused by the imperfect methods of calculating MCS in the soil environment and incorrect choice of the structure span, as well as the shape of the structure cross-section. The problems of adaptation of foreign standards concerning the design of metal corrugated structures on the railway and motor roads of Ukraine are analyzed, the results of experimental and theoretical calculations of bearing capacity of metal corrugated structures are presented. It was determined, that the stresses arising in the pipe metal sheets of 1 m till 9 m diameter do not exceed the metal ultimate elasticity of 235 MPa. However, for the 10 m diameter pipe the stresses value exceeds the permissible value of the metal pipe yield strength of 235 MPa. It is established, that for the pipes of 1 m till 9 m diameter the value of the plastic hinges formation does not exceed the permissible value of 1,0. However, for the 10 m diameter pipe the value of the plastic hinge formation ratio is 1,531, which is unacceptable for this steel grade. Since in the 10 m diameter pipe due to the load from the locomotive 2M62 the plastic deformations are formed in the metal pipe, it can cause the destruction of the transport structure as a result.
Authors and Affiliations
Josyp Luchko, Vitalii Kovalchuk, Ivan Kravets
Keywords
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- EP ID EP438039
- DOI 10.33108/visnyk_tntu2018.03.026
- Views 26
- Downloads 0
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