Evaluation of the Influence of the Stiffeners on the Overall Stability of the Variable-Rigidity Steel Frame Using FEM

International Multi-Conference on Industrial Engineering and Modern technologies

Sventikov, A.A.^1 ; Kuznetsov, D.N.^1

Voronezh State Technical University, 20 let Oktyabrya st. 84, Voronezh, Russia^1

关键词: Climatic conditions;    Design and calculation;    End;    plates;    Frame systems;    General stabilities;    Local stability;    Overall stabilities;    Transverse stiffener;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/463/2/022091/pdf
DOI  :  10.1088/1757-899X/463/2/022091

来源: IOP

【 摘 要 】

A steel frame of I-section variable in height is calculated. Elements of the frame: wall, belt, and stiffeners were modeled using plate end plates in the SCAD Office computer complex. The steel frame has a span of 18 m, the height of the pillar is 7,280 m and the roof slope is 0.1. The calculation was made for the climatic conditions in Voronezh. The cross sections of the frame are given by the results of the calculation of the bar chart. The elements that unfold the frame from the plane are modeled as fixed junctions. The effect of transverse stiffeners in the crossbar and racks on local and general stability is considered. The values of stresses in the wall and the form of loss of local stability, as well as the shape of the loss of the overall stability of the frame system, are determined. The effect of transverse stiffeners on the forms of loss of the overall stability of the system and the value of the reliability coefficients on the stability of the system as a whole are established. The paper shows the relationship between transverse stiffeners, local wall stability and general stability for a variable-rigidity frame. Based on the analysis of the results, recommendations are given for the design and calculation of variable-rigidity steel frames using finite element-based computer systems.