Static and dynamic analyses of a suspension bridge with three-dimensionally curved main cables using a continuum model

Gwon, Sun-Gil; Choi, Dongho

doi:10.1016/j.engstruct.2018.01.062

Cited by 26 publications

(8 citation statements)

References 37 publications

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“…erefore, the time-varying reliability of the whole life cycle of TTA requires urgent research attention. (4) In view of several common failure modes of TTA, the corresponding effective prereinforcement measures need to be taken.…”

Section: Test Categorymentioning

confidence: 99%

“…Cable-supported bridges come in cable-stayed and suspension forms; one of the main forms of long-span bridges are suspension bridges [3,4], which are one of the main models [5], because it has significant advantages in exerting material properties and height-span ratio of stiffening girder. Being flexible, suspension bridges are mainly composed of main beam, tower pier, cable, and anchorage, in which anchorage is the key structure of anchoring main cable of suspension bridge [6] (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

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A Comprehensive Review of the Mechanical Behavior of Suspension Bridge Tunnel-Type Anchorage

Han

Liu

Wei

et al. 2019

Advances in Materials Science and Engineering

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The recent surge of interest towards the mechanical response of rock mass produced by tunnel-type anchorage (TTA) has generated a handful of theories and an array of empirical explorations on the topic. However, none of these have attempted to arrange the existing achievements in a systematic way. The present work puts forward an integrative framework laid out over three levels of explanation and practical approach, mechanical behavior, and calculation method of the ultimate pullout force to compare and integrate the existing findings in a meaningful way. First, it reviews the application of TTA in China and analyzes its future development trend. Then, it summarizes the research results of TTA in terms of load transfer characteristics, deformation characteristics, failure modes, and calculation of ultimate uplift resistance. Finally, it introduces four field model tests in soft rock (mainly mudstone formations), and some research results are obtained. Furthermore, it compares the mechanical behavior of TTA in hard rock strata and soft rock strata, highlighting the main factors affecting the stability of TTA in soft rock formation. This paper proposes a series of focused topics for future investigation that would allow deconstruction of the drivers and constraints of the development of TTA.

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Section: Test Categorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review of the Mechanical Behavior of Suspension Bridge Tunnel-Type Anchorage

Han

Liu

Wei

et al. 2019

Advances in Materials Science and Engineering

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“…Considerable research on gravity anchorage stability has been carried out with various methods such as the rigid body model, the finite-length beam assumption method, and numerical simulation [6,7,[9][10][11][12][13][14]. Generally, the finite element method (FEM) is applied to numerically analyze the anchorage stabilization.…”

Section: Introductionmentioning

confidence: 99%

“…The interaction between anchorage concrete and foundation rock mass, in general, is hardly considered because all the elements are assumed to be continuous in the FEM. Although certain effects have been made on the contact problems of gravity anchorage with theoretical solutions [5,15,16], numerical simulation [7,14] and model testing [17,18], systematic investigation work is not yet available.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of the Rock-Concrete Interface for a Bridge Anchorage Structure Using Discrete Element Method

Cui

Zhang

Sheng

2022

JMSE

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Traditionally, the numerical simulation work of a bridge gravity anchorage structure is performed with a continuous method, such as the finite element method (FEM). However, since the rock mass and gravity anchorage structure are assumed to be continuous in the FEM, the interaction between the rock mass foundation and the concrete of the anchorage is not frequently considered. This paper aims to investigate the problem of the interaction between the rock mass foundation and the concrete of the anchorage. The discrete element method (DEM), which has been verified to be suitable for the modelling of contact problems of discrete blocks, is introduced in this paper to simulate the mechanical behavior of the rock-concrete system of the gravity anchorage structure and its rock mass foundation. Based on the in-situ scale model test for a bridge, the mechanical behavior of the rock-concrete interface was discussed with the DEM method. With the calibrated DEM model, the displacement of the foundation rock mass, contact stresses, and yield state on the rock-concrete interface were numerically investigated. The anti-sliding effect of the keyway and the step at the bottom of the gravity anchorage structure was analyzed. The results show that the anchorage deformation under the design conditions is basically characterized by the rigid rotation around the keyway of platform #2, and that such rotation subsequently affects the anti-shear capacity of the entire gravity anchorage to a large extent. The anchorage scale model could remain stable under the design lateral load such that the rock-concrete interface would remain intact and sufficient shear resistance could be provided by the keyway and steps.

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“…Cable-supported bridges are classified into cable-stayed and suspension bridges. Suspension bridges are one of the main types of long-span bridges [1,2] and possess significant benefits in terms of material properties and height-span ratio of the stiffening girders [3]. Suspension bridges are comprised of main beams, tower piers, cables, and anchorages, with the anchorages playing the major role in anchoring the suspension bridge's main cables [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Joint Characteristics and Geometries on Tunnel-Type Anchorage for Suspension Bridge

Lim

Seo

et al. 2021

Applied Sciences

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In this study, the pull-out behavior of a tunnel-type anchorage was examined by considering both geometric and rock joint characteristics. Three-dimensional finite element analyses were performed with reference to the tunnel-type anchorage cases designed and constructed in Korea. The factors influencing the anchorage response were analyzed: the enlarged part, anchorage spacing, joint orientation, spacing, and the shear strength of the rock joints. According to the numerical studies, the size of the enlarged part influenced the failure shape of the tunnel-type anchorage. It was found that the anchorage spacing, the relationship between the tunnel-type anchorage, and the joint orientation and spacing greatly influenced the pull-out behavior of the anchorage. Additionally, the friction angle had a larger impact on the anchorage’s pull-out resistance than the cohesion between the rock joints.

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Static and dynamic analyses of a suspension bridge with three-dimensionally curved main cables using a continuum model

Cited by 26 publications

References 37 publications

A Comprehensive Review of the Mechanical Behavior of Suspension Bridge Tunnel-Type Anchorage

A Comprehensive Review of the Mechanical Behavior of Suspension Bridge Tunnel-Type Anchorage

Mechanical Behavior of the Rock-Concrete Interface for a Bridge Anchorage Structure Using Discrete Element Method

Effect of Joint Characteristics and Geometries on Tunnel-Type Anchorage for Suspension Bridge

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