Especially for the main frames of single‐storey steel buildings use corrugated web beams, mainly with sinusoidal corrugation, has been increased very much during last years. Due to thin 1,5 mm 3 beams afford a significant weight reduction compared hot rolled profiles or welded I‐sections. Buckling failure is prevented by corrugation. The buckling resistance presently used webs comparable plane 12 thickness more. improvements automatic fabrication process up 6 became possible. Therefore field...

This paper assesses the elastic and inelastic lateral-torsional buckling resistance of I-beams with sinusoidal corrugated web through an extended 22 degrees freedom thin-walled beam-column finite element method. The appropriate hand calculation methods to determine critical moment beams are based on modification warping constant cross-section. Instead modifying constant, is modelled as a thin, equivalent orthotropic plate uniform thickness. An approximate expression also derived from total...

Nowadays, 3D laser scanning technology is extensively employed in laboratory investigations of steel structural components, providing accurate geometric dimensions to reduce uncertainties caused by indeterminate geometry experimental results. It often used conjunction with the Finite Element (FE) Method and analytical solutions, which are more deterministic operators research on structures. However, establishing a common methodological framework for transferring or mapping 3D-scanned...

Fixed beam-to-column joints in steel portal frames with bolted connections typically present stiffeners to ensure proper load bearing resistance and stiffness the joint. Executing same a reduced height (e.g. partial web stiffener) allows for cost saving during manufacturing but must be paid off by considering its effects design verification of The usual gap size stiffener has 10%–30% concerned element depth. Based on Astron product example, this study analyzes knee joint components according...

Despite much advancement of typical joining techniques in steel construction, fundamental problems, like residual stresses for welds as well weakening the cross section bolts and screws, still remain. The application bonded joints could improve situation. automotive industry shows potential this certain technique since years. Even civil engineering especially researchers are continuously establishing bonding technology a structural element. On one hand mean challenge, but on other an...

The cylindrical shell is a widely used structure in engineering practice, and its main form of failure instability due to buckling. As classical problem the field mechanics, stability shells has been studied extensively. However, large difference between theoretically predicted results critical buckling load experimental for subjected uniform axial pressure contributed continuous development theory. This paper briefly reviews theory, then presents an overview current status trends research...

This article provides an impression on potentials in applying nowadays welding simulation tools construction design. is carried out exemplary plate girders from two structural steel grades. The calculated residual stresses are compared with measurements by sectioning method. It has been repeatedly stated that present Eurocode models fail to approximate the stresses. Especially for high strength (HSS) only limited information available realistic occurring typical I-girders. investigations...

Abstract A silo structure is usually constructed in the form of a cylindrical steel shell. It has advantages being lightweight, having short construction period, and possessing large storage space. been widely used many fields industry. Thin‐walled shells often exhibit buckling failure experimental load lower than calculation results from classical theory simulation without geometrical imperfection. Besides, test with carefully conducted similar specimens still have substantial scatter due...

ABSTRACT Material efficiency in modern tank constructions often is achieved by combining thin plates with light and heavy ring stiffeners. While the are designed to resist hydrostatic pressure, stiffeners against wind external pressure. Axial buckling may occur due high roof loads since very prone a loss of stability. Test results 60s 70s revealed that closely spaced ring‐stiffeners greatly enhance axial behavior, allowing for knock‐down factors greater unity. However, until today, no design...

Zusammenfassung Aus den von der Bundesanstalt für Straßenwesen veröffentlichten Zustandsnoten lässt sich ein erheblicher Sanierungsbedarf deutscher Straßenbrücken ableiten. Stahlbrücken weisen häufig Schäden in Form Ermüdungsrissen an Stellen erhöhter Spannungskonzentration auf. Der Neubau Brücken ist aus wirtschaftlichen und infrastrukturellen Gründen nicht immer möglich. Somit sind effektive zuverlässige Methoden zur Verstärkung geschädigten Tragwerke dringend erforderlich. Die derzeit...

During welding of typical steel cross sections, like T or I- Profiles e.g., residual stress occurs and need to be considered during the design process. With knowledge state after welding, farther calculation with different models are carried out. The systematic study will show three steps Okerblom's model consider in evaluation process stresses. results numerical simulation experimental compared. that, difference between buckling curve from EN 1993-1-1 (2006) shown for S235 S460. Especially...