Welded circular hollow section (CHS) joints in bridges

Kuhlmann, Ulrike; Günther, Hans‐Peter; Saul, Reiner; Häderle, M.-U.

doi:10.1201/9780203734971-8

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 1 Investigated parameter range per chord-brace angle 𝜃 Six of the load cases which are generally declared as elementary load cases [11,16] were analysed, whereby the loads were in equilibrium. The following loads were investigated with regard to the braces, anti-symmetrical axial loads and opening brace bending moments in and out of plane.…”

Section: Identification Of the Reference Geometrymentioning

confidence: 99%

“…This resulted in a number of 243 potential geometries to be investigated in order to identify the critical reference joint and the location of the highest stress concentration at this geometry. For this purpose, the stresses per model were evaluated orthogonally to the postulated crack plane in the region of the chordbrace intersection, thus fulfilling the requirements of the Hot-Spot concept [11,16].…”

Section: Identification Of the Reference Geometrymentioning

confidence: 99%

See 1 more Smart Citation

Proposal for the suitable choice of material to avoid brittle fracture on Jacket foundations

Krahl,

Kühn

2023

ce papers

View full text Add to dashboard Cite

In the past years offshore wind turbines have been established as a source of renewable energies. Especially installations at greater distances from the shore and thus at increasing sea depths offer great potential. The foundations of these structures are exposed to complex load configurations while simultaneously exhibiting difficult environmental conditions. Although, there are currently no harmonized regulations with regard to the suitable choice of material to avoid brittle fracture for the hollow section joint structure of a Jacket foundation. In accordance with EN 1993‐1‐10 appropriate rules are given in terms of onshore structural engineering. Although, due to the differing conditions, these rules can not be applied to offshore foundations without further modifications. To achieve a suitable application, investigations regarding the material toughness requirements for Jacket foundations of offshore wind turbines were carried out. A parametric study regarding stress concentration was conducted to identify a reference geometry. Afterwards a fracture mechanics approach was applied to define the material toughness requirements. The obtained results served as a basis upon which a proposal to avoid brittle fracture for Jacket foundations was drafted.

show abstract

Section: Identification Of the Reference Geometrymentioning

confidence: 99%

Section: Identification Of the Reference Geometrymentioning

confidence: 99%