On the Issue of Determining the Rational Parameters of the Metal Structure of the Bridge Crane Superstructure
Abstract: The article considers the issue of reducing the metal consumption of the bridge crane metal structure while providing a given load capacity. The KM-32 overhead crane with a lifting capacity of 32 tons and a span of 16.5 m was adopted as the object of research. The following modernization of the crane bridge is proposed: to strengthen the metal structures of the main beams of the superstructure by introducing additional external longitudinal stiffeners while reducing the thickness of the vertical diaphragms, which reduces the weight of the bridge by 4 %. Based on the numerical analysis of the stress-strain state of the basic and upgraded bridge structure in the Kompas – 3D APM FEM: «Strength Analysis» software environment, the greatest stress concentrations and maximum deflections of bridges were established, and the masses of the bridge structures under consideration were determined. The dependence of the increase in the mass of the main beam of the crane superstructure with an increase in the height of the cross-section of the main beam compared with the optimal height is established.
Keywords: diaphragm, bridge crane, mass, metal structure, stress-strain state, deflection, stiffeners.
Pages: 69-76.
For citation: Lutskо, T. V.; Kondrykinsky, A. V.; Tishchenko, S. A. On the Issue of Determining the Rational Parameters of the Metal Structure of the Bridge Crane Superstructure. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2021. – Issue 2021-6(152) Technology, organization, mechanization and geodetic support of construction. – Р. 69-76. – URL: https://donnasa.ru/publish_house/journals/vestnik/2021/2021-6(152)/st_11_lyzko_kondrykinskiy_tishenko.pdf (date of access: 19.11.2024). – ISSN 2519-2817.
Issue 2021-6 (152)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture