Effect of the Tapered Angle on the Ultimate Load Factors of PPWS Sockets in Main Cables of Suspension Bridges

Yoo, Hongki; Lee, Sung-Hyung; Seo, Ju-Won

doi:10.12652/ksce.2013.33.1.047

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…상세한 소켓의 설계법은 관련 문헌 (Komura et al, 1995;JSA, 1995;Yoo et al, 2013) (Komura et al, 1995;JSA, 1995;Yoo et al, 2013). …”

Section: 소켓 설계법unclassified

Behavior Analysis of PPWS Sockets for Suspension Bridges Considering Frictional Contact

Yoo¹,

Lee²,

Seo³

2013

Journal of The Korean Society of Civil Engineers

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A sophisticated finite element model is illustrated to analyze the behavior of Prefabricated Parallel Wire Strand(PPWS) sockets for main cables of suspension bridges. An orthotropic model is proposed for the casting material by considering both effects of individual wires and a casting alloy, and the contact between surfaces of a socket and a casting alloy is idealized by using the Coulomb friction and the surface-based contact model. The proposed FE model is verified by comparing the strain distributions obtained from the tensile test and FE analysis. The mechanical behavior of a socket is investigated with respect to the variation of the frictional coefficient. The result shows that the friction between surfaces significantly diminishes the stress concentration of a socket and a casting alloy, and the normal stress from the design equation represents the averaged value of the upper and lower quartiles in the distribution of contact stresses between a socket and a casting alloy.

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“…상세한 소켓의 설계법은 관련 문헌 (Komura et al, 1995;JSA, 1995;Yoo et al, 2013) (Komura et al, 1995;JSA, 1995;Yoo et al, 2013). …”

Section: 소켓 설계법unclassified

Behavior Analysis of PPWS Sockets for Suspension Bridges Considering Frictional Contact

Yoo¹,

Lee²,

Seo³

2013

Journal of The Korean Society of Civil Engineers

Self Cite

View full text Add to dashboard Cite

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Research on Critical Technology of Cable Hoisting Construction of Large-Span Bridge

Xiong,

Jiang,

Liu

et al. 2024

Lecture Notes in Civil Engineering

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Design Procedure of a Mono-Anchor Head for 2360 MPa High-Strength Steel Strand

Kim

2023

Applied Sciences

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In this paper, a design procedure for a mono-anchor head anchoring a 2360 MPa high-strength steel strand is proposed. The performance criteria of the existing anchor head based on PTI (Post-Tensioning Institute) have been reorganized so that they can be evaluated based on the plastic hoop strain appearing at the top of the wedge hole. In order to design a mono-anchor head that does not exceed the permissible performance standard, the stress and deformation mechanisms of the mono-anchor head were investigated. It was confirmed that the external force was locally concentrated at the top of the wedge hole due to the interaction between the components of the anchorage device. An investigation based on the finite element method was conducted to identify the degree of external force concentration at the location and establish the relationship with the plastic hoop strain. An analytical investigation was conducted according to the design variables of the mono-anchor head, and in this process, static load tests and material tests were conducted to create an analytical model that reflects the actual behavior of the anchorage system. An equation was established regressionally so that the plastic hoop strain, which is a performance criterion, can be calculated according to the configuration and yield strength of the anchor head. Following the proposed design procedure, the configuration can be properly determined when the yield strength determination is limited due to material supply and demand. In addition, when space is limited during the construction of an anchorage device, the dimensions of an anchorage device in a small size can be determined, and the yield strength appropriate for that size can be determined.

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Effect of the Tapered Angle on the Ultimate Load Factors of PPWS Sockets in Main Cables of Suspension Bridges

Cited by 3 publications

References 6 publications

Behavior Analysis of PPWS Sockets for Suspension Bridges Considering Frictional Contact

Behavior Analysis of PPWS Sockets for Suspension Bridges Considering Frictional Contact

Research on Critical Technology of Cable Hoisting Construction of Large-Span Bridge

Design Procedure of a Mono-Anchor Head for 2360 MPa High-Strength Steel Strand

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