Published: 2006-04-01

Stability of steel prismatic beam columns in the range of plastic deformation

Jerzy Odorowicz

Abstract

The paper refers to stability of compressed prismatic steel beam columns in the range of plastic deformation. The rods are characterized by slenderness ratio of ≤H, where H=√(E/R_H ), R_H is proportional limit of the steel. The original experimental tests as well as tests carried out by Z. Wasiutyński is described in the paper. The analysis of experimental results is made with respect to the proposed by author formulas determining both the static and geometric parameters of beam columns as well as the energy and the work of external forces of the critical state of axially compressed bar. The research is complemented by calculation of safety factors, which due to proposed by author analysis is lower than that proposed by Polish standard PN-90/B-03200, on static analysis and design of steel structures. It was stated experimentally that with decreasing of the slenderness ratio of compressed bars the work of compression Lśc increases quickly whereas the work of bending Lzg decreases. It is stated that the axis of failure forces Pn remain within core of a cross-section, what indicate that very short bars, which can be loaded by compressed forces of the value near yield point Re, do not buckle.

Download files

PDF (Język Polski)

Citation rules

Odorowicz, J. (2006). Stability of steel prismatic beam columns in the range of plastic deformation. Roads and Bridges - Drogi I Mosty, 5(1), 53–94. Retrieved from https://www.rabdim.pl/index.php/rb/article/view/v5n1p53

Cited by / Share


This website uses cookies for proper operation, in order to use the portal fully you must accept cookies.