Abstract
The article deals with the calculation of metal bridge cranes operating under the influence of variable loads. Requirements to static and dynamic characteristics of mechanisms of load-lifting cranes are caused by specifics of work, features of a design and operating conditions of the cranes working at variable loadings. Thus, it is proposed to perform calculations of parts of crane mechanisms for endurance, operating under non-stationary variable load, based on the principle of linear summation of damage, allowing the calculation from the point of view of the load equivalent to the entire range of operating loads.
Highlights
In almost all sectors of the economy are widespread metal structures due to their characteristics [1,2,3,4]
Most calculations of metal bridge cranes are performed by the method of allowable stresses under certain load combinations [8
Such as distributed load from self weight of the bridge structure of a crane, point loads from the cargo truck with the load located at mid-spans, concentrated load from a cargo truck with load located at the end of the beam or in dangerous cross-section, i.e. the transition section of the bridge beams from high to low [10]
Summary
In almost all sectors of the economy are widespread metal structures due to their characteristics [1,2,3,4]. Sozdanie effective metal designs are based on a comprehensive consideration of the requirements of exploitation reliability and durability, fabrication and installation, which leads to the need of knowledge of work load, the correct choice of structural forms, use of standardized and harmonized solutions and relevant calculations to create designs [5,6,7]. Most calculations of metal bridge cranes are performed by the method of allowable stresses under certain load combinations [8. The sections of the main beams of bridge cranes are mainly used box section in the form of a rectangular parallelepiped, so it is necessary to ensure the allowable values of the moments of resistance of the rectangular section at different ratios of the size of the belts and walls [11, 12]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
