Computer modeling of the stresses in welded truss
Journal Title: Вісник Тернопільського національного технічного університету - Year 2016, Vol 82, Issue 2
Abstract
The stresses localization in the construction elements of welded roof truss that is 18000x3600 mm and is made of 100х100х10 mm steel rolled L-bar is studied. The nodes are designed without adapters. Computer modeling of the studied construction loading process was applied in the program complex ANSYS Workbench 14.5, which is algorithmically based on the finite elements method. The values of external loads on the top chord nodes were discretely prescribed to be from 10 kN to 650 kN. The maximum load is limited by the arising of edge state in welded truss. The study obtained numerical and graphical information base on the stress-strain state parameters along the bottom chord of the truss at different levels of external force action. The level of stresses, localized in truss nodes, was identified. According to the research results it was concluded that local strengthening of the bottom chord central part is appropriate. This will increase the level of allowable loads on the structure and improve the reliability of building exploitation.
Authors and Affiliations
Yaroslav Kovalchuk, Natalya Shynhera
Keywords
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