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
Related Articles
- EP ID EP257633
- DOI -
- Views 31
- Downloads 0
Mathematical modeling of non-isothermal adsorption mass transfer in nanoporous catalysts
The mathematical model of non-isothermal adsorption mass transfer in micro- and nanopores of intraparticle and interparticle spaces catalytic media, which considers effect of temperature during adsorption process, has be...
Parameter justification for interworking relationship of elastic screw operating element with grain material
Famous constructions of auger operating elements with elastic surfaces and screw operating conveyors have been analyzed. New construction of auger conveyor with elastic screw surface was developed and designed. The influ...
Studies of the effect of quenching oil on microstructure and mechanical properties of heat treated 34CrMo4 steel
Aim of this research was assessment of quenching oil influence on microstructure and mechanical properties of 34CrMo4 quenched and tempered steel. Conducted work includes analysis of microstructure and examining mechanic...
Resonance radial oscillations of a piezoceramic cylinders and spheres taking into account electromechanical losses
Hollow piezoceramic radially polarized cylinders and spheres widely used as sound transducers and receivers are considered. The most characteristic run mode of piezoceramic transmitters is resonant mode. In this paper, a...
Calculation of the plate plane stress in polar coordinate system on the basis of Lamé equation general solution
The mathematical model describing plane stress-strain state of plane elastic bodies in polar coordinate system is offered. To describe its three-dimensional stress state, three harmonic functions expressing the general s...