Analysis of frame buckling without sidesway classification

Galishnikova, Vera V.; Владимировна, Галишникова Вера; Pahl, Peter Jan; Ян, Паль Петер

doi:10.22363/1815-5235-2018-14-4-299-312

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Работы по совершенствованию методов расчета и конструктивной формы стальных балок непрерывно продолжаются в исследованиях современных ученых [19][20][21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionunclassified

Areas of rational operation of steel rolling beams secured against curvatures

Golikov

Владимирович²,

Veremeev

et al. 2021

Struct. Mech. of Eng. Const. and Build

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Relevance. Beam cages are the most common type of floor covering for working areas of buildings and structures. Based on the results of a critical analysis of the existing methods for calculating and arranging the dimensions of beam cells, it was established that there are no clear recommendations on the rational range of selection of the sizes of beam cells depending on the surface load. The purpose of the study is to present the areas of rational operation of steel rolling beams, secured against buckling, based on the requirements of the calculation by the method of limit states. Methods. The tasks set in the work, aimed at achieving the research goal, are solved by analytical methods, relying on the basic laws of structural mechanics and existing knowledge about the actual operation of steel rolling beams under load. Methods of mathematical statistics were used to construct the main dependencies presented on the nomograms. Results. Areas of rational operation of steel rolling beams, secured against curvatures, are determined. The area of rational operation of beams is presented in the form of nomograms, which allow at the design stage to use a beam cell of maximum dimensions. As a criterion for rationalization, the criterion of the simultaneous satisfaction of the accepted section of the beam with the requirements of two groups of limiting states with minimum reserves was chosen. A refined algorithm for the layout of the beam cages and a refined method for calculating the cross-section of rolled beams are proposed, which make it possible to arrange the dimensions of the beam cage with a minimum steel consumption. The increase in the overall dimensions of the cells of the working platforms is substantiated.

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Section: Introductionunclassified

Areas of rational operation of steel rolling beams secured against curvatures

Golikov

Владимирович²,

Veremeev

et al. 2021

Struct. Mech. of Eng. Const. and Build

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show abstract

“…Расчёты на прочность и устойчивость таких объектов аналитическими методами достаточно трудоёмки и возможны лишь для сравнительно узкого класса задач. Поэтому в настоящее время применяют в основном численные методы расчёта [20,21,6,5,8,3,13], подразумевающие применение современной вычислительной техники и программного обеспечения. Наибольшую популярность среди численных методов сейчас имеет метод конечных элементов (МКЭ) в различных формулировках [1, 2, 7, 4, 9-12, 14-19, 22].…”

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Calculation of the Strength of Shell Structures of Agroindustrial Complex of Bunker Type

2019

PNVAC

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thin shells with the use of the direct normal hypothesis. The kinematic parameters of the cylindrical shell are taken as the main unknown in the nodes at the junction of the cylindrical and conical shells. To obtain the expressions of the nodal parameters of a conical shell using the basic nodal unknown of the cylindrical shell used the kinematic conditions and the equilibrium equations of statics. The obtained relations are implemented in the matrix form and used in the transformation of stiffness matrices and vectors of nodal loads of finite elements of the conical shell adjacent to the boundary of the joint with the cylindrical shell. On the example of calculating the strength of a thin-walled bunker-type structure consisting of a cylinder and a truncated cone, the efficiency of the developed algorithms is shown and the correctness of the obtained numerical values of strength indicators is confirmed. The analysis of the numerical results allowed us to conclude that the stress concentration coefficient in the zone of joint of the cylinder with the cone increases proportionally to the angle of inclination of the cone to its axis. Ключевые слова: тонкостенная конструкция бункерного типа, конечный элемент, условия сочленения цилиндра с конусом, концентрация напряжений.

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Comparative study of the AISC-LRFD, Eurocode 3 & SP 16.13330.2017 steel members design

Gebre

Lebed

Galishnikova

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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This paper presents the comparative design procedures for steel frame elements using three different International design codes, viz. the American Institute of Steel Construction (AISC), the European Code (EC3) and the Russian Design Code (SP). It focuses on the resistance capacity of steel members subjected to different loads, such as tension, compression and flexure. It compares the formulation of all codes that identify their similarities and differences. The comparative study is performed for a compact rolled I sections with different slenderness and lateral bracing lengths. The results are presented graphically in different ways such as strength curves, Moment capacity versus lateral bracing length and normalized graphs. The comparative study shows that the resistance capacity specified by all specifications can be different for some considered cases. For compression member, SP specifications have higher capacity and economical approach. For flexural member, AISC gives higher capacity for inelastic region and EC3 gives higher capacities for elastic region but SP approach is lower for flexural capacity.

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Analysis of frame buckling without sidesway classification

Cited by 4 publications

References 3 publications

Areas of rational operation of steel rolling beams secured against curvatures

Areas of rational operation of steel rolling beams secured against curvatures

Calculation of the Strength of Shell Structures of Agroindustrial Complex of Bunker Type

Comparative study of the AISC-LRFD, Eurocode 3 & SP 16.13330.2017 steel members design

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