UNIFIED SLENDERNESS LIMITS FOR STRUCTURAL STEEL CIRCULAR HOLLOW SECTIONS
Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2014, Vol 59, Issue 1
Abstract
Circular hollow sections (CHS) are widely used in a range of structural engineering applications. The sections may be hot-finished or cold-formed from a variety of metallic materials with a range of yield strengths. The design of these sections is covered by all major design codes, yet there are significant differences in the treatment of local buckling, as considered through cross-section classification. Cross-section classification criteria relate to rotation capacity and strength requirements (attainment of the plastic or elastic moment in bending and the yield load in compression), while the relative performance of structural CHS is governed by susceptibility to local buckling and is influenced by cross-section slenderness, material stiffness and yield strength, forming process (affecting geometry, material homogeneity and residual stresses), material strain hardening characteristics and ovalization. Furthermore, the classification criteria and reliability requirements vary among the different structural design codes. This paper presents a review of 153 test results on CHS in bending, covering structural steel, aluminium, stainless steel and very high strength steel. Based on the available test data, current codified provisions in the European, North American and Australian Standards are reassessed, and following reliability analyses new unified slenderness limits are proposed for structural steel CHS.
Authors and Affiliations
LEROY GARDNER, KWAN HO LAW, CRAIG BUCHANAN
Keywords
Related Articles
- EP ID EP179973
- DOI -
- Views 85
- Downloads 0
RISK ASSESSMENT OF SYSTEMS DURING DEVELOPMENT PHASE: AN APPROACH BASED ON LIFETIME FUNCTIONS
Quantifying the time-dependent risk associated with complex engineering projects is an essential task to ensure the success of these projects. Low technology readiness and maturity levels and uncertainties associated wit...
ON THE LINEARIZATION OF EXPERIMENTAL HYSTERETIC LOOPS
In this paper is presented a linearization method developed on the basis of the experimental hysteresis loop, by considering the most general case, when there is no mathematical model associated with the hysteretic behav...
INVERSE DYNAMICS OF A TRANSLATION-ROTATION HYBRID PARALLEL ROBOT
Matrix relations for dynamics analysis of a spatial two-module hybrid parallel manipulator are established in this paper. Knowing the relative motions of two serially connected moving platforms, the inverse dynamics prob...
GAS TURBINE AS RANGE EXTENDER FOR FUTURE ELECTRIC AUTOMOBILES
The propulsion of automobiles by motors, especially by hub motors, integrated into the wheels, offers remarkable advantages in terms of vehicle dynamics, stability and freedom of movement. But the most important benefit...
ON THE INFLUENCE OF DENSITY ON THE WAVE PROPAGATION IN FLUIDS
In this paper we investigate the influence of the density on the propagation of waves in fluids with exponential and cosine stratification, respectively. We show that the waves are pairs of solitons, each pair consisting...