fib Bulletin 89. Acceptance of cable systems using prestressing steels

Brand, W.; Annan, Rachid; Almeida, Pedro Afonso de Oliveira; Bastien, Josée; Chandoga, Milan; Curran, P. A.; Ciccone, Tommaso; Fischer, Gregor; Georgakis, Christos; Glaeser, Christian; Goodyear, David; Gutsch, Alex; Hosoi, Kiyotaka; Ikehata, Shinya; Kasuga, Akio; Kido, Toshiro Tiger; Kuilboer, Cor; Meiss, Kathy; Mellier, Erik; Neff, Theodore; Piekarski, Jan; Soule, Ben; Theryo, Teddy; Santos, Adrián Tejera; Weiher, Hermann; Wild, Matthias; Winkler, Jan; Zivanovic, Ivica

doi:10.35789/fib.bull.0089

Cited by 6 publications

(3 citation statements)

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“…In prEN 1993-1-11, separate provisions for saddles for group C tension components are introduced. They correspond to those in [4]. Type 1 and type 2 arrangements are taken into consideration (see Fig.…”

Section: Saddles For Group C Tension Componentsmentioning

confidence: 99%

“…✓ Based on the work supporting the recent Bulletin FIB 89 [4], two fatigue resistance curves can be used for parallel wires or bundles of seven wire strands depending on the SLS frequent combination stress design limit: a) A detail category ∆𝜎 c =160 MPa if 𝜎 sup,Ed ≤ 0,45 𝜎 u,k . b) A new detail category ∆𝜎 c =112 MPa if 0,45 𝜎 u,k < 𝜎 sup,Ed ≤ 0,55 𝜎 u,k (usually the case for extradosed bridges).…”

Section: Fatigue Designmentioning

confidence: 99%

“…Regarding the material and corrosion protection/durability requirements for the tension components of each group, new information was provided to be as consistent as possible with technical documents [2] to [4]. Additionally, each tension component group's requirements and procedures for axial tensile testing, axial fatigue testing, modulus of elasticity testing, creep and relaxation testing, leak tightness testing, and friction coefficients tests, if applicable, were completely re-defined.…”

Section: Annex Amentioning

confidence: 99%

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Revision of the standard EN 1993‐1‐11 and background information

Friedrich,

Misiek,

Pedro

et al. 2023

ce papers

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Within the framework of the development of the second generation of Eurocode 3, Part 1‐11, related to the design of steel tension components, was completely revised.This paper introduces the main developments in the prEN 1993‐1‐11:2023 regarding the basis of design for the three groups of tension components: A ‐ Rods, B ‐ Ropes, and C ‐ Parallel strand or wire systems. For each of the three groups, complete information on the “Material”, “Ultimate limit state” (including fatigue) and “Serviceability limit state” requirements are provided. Improved formulas for the design of saddles and clamps are presented, including new saddle solutions for group C. Reference is made to the new group D ‐ Parallel wire tension components for suspended structures, included in new Annex C. Annex A “Product requirements for tension components” was completely revised to reflect modern testing requirements. Informative Annex B has been also updated with new figures that reflect the state of the art in tension elements and terminations.

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Section: Saddles For Group C Tension Componentsmentioning

confidence: 99%

Section: Fatigue Designmentioning

confidence: 99%

Section: Annex Amentioning

confidence: 99%

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Revision of the standard EN 1993‐1‐11 and background information

Friedrich,

Misiek,

Pedro

et al. 2023

ce papers

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Full-Scale Model Experimental Study of the HDPE Multitube Saddle of an Extradosed Bridge

Yang

et al. 2022

Structural Engineering International

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Load transfer of stay cable forces to pylon, design criteria and comparison of solutions

Annan¹,

Vonk²,

Ramírez³

et al. 2023

IABSE Symposium, Istanbul 2023: Long Span Bridges

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Decks of cable stayed bridges are supported by cables transferring the reaction loads to the pylons.Toe cables are either terminated in an anchorage or the main tensile element is continuous, crossing through the pylon, guided by means of saddles.In a continuous effort to optimise structures, designers have privileged pylon presenting a plain body, with no inner cavities needed for the installation of cable anchorages. Such plain pylon bodies prompt the use of saddle to guide a continuous tendon across, or, alternatively, push the connection of the stay cable on the outside, using structural tensile components such as steel links, to obtain the transfer of the stay cable loads to the pylons.Toe multiaxial loading of the stay cable on the pylon connection, as well as functional needs associated to stay cable operations, compelled establishment of numerous criteria to achieve the design of such devices.Today, engineers have gained experience in the design, manufacture and installation of pylon connections including associated stay cable system. This paper aims to compile key criteria in the design of pylon connections for plain body pylon and highlighting particularities of both families of applied solutions: structural steel links and guiding friction saddles.

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fib Bulletin 89. Acceptance of cable systems using prestressing steels

Cited by 6 publications

References 0 publications

Revision of the standard EN 1993‐1‐11 and background information

Revision of the standard EN 1993‐1‐11 and background information

Full-Scale Model Experimental Study of the HDPE Multitube Saddle of an Extradosed Bridge

Load transfer of stay cable forces to pylon, design criteria and comparison of solutions

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