Cable-loss analyses and collapse behavior of cable-stayed bridges

Wolff, Maren; Starossek, Uwe

doi:10.1201/b10430-326

Cited by 22 publications

(6 citation statements)

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“…With regard to existing guidelines (PTI 2007) for progressive collapse design of cable stayed bridges, only considering the scenarios associated with loss of a single cable is adequate, however, some researchers believe that scenarios in which more than one cable is lost should not be ignored (Wolff and Starossek 2010). Accordingly, in this study, three different scenarios corresponding to loss of only one cable and simultaneous loss of two and three cables are considered.…”

Section: Cable Loss Scenariosmentioning

confidence: 99%

“…Accordingly, in this study, three different scenarios corresponding to loss of only one cable and simultaneous loss of two and three cables are considered. In the first scenario (only one cable is lost) four different cases which are potentially the most critical ones are investigated (Wolff and Starossek 2010;Aoki et al 2011). In case-1 and -4 the loss of cable no.…”

Section: Cable Loss Scenariosmentioning

confidence: 99%

“…At the global level, most of the research on the potential progressive collapse response of cable stayed bridges take advantage of linear elastic FE models to determine the DAF for different structural components and investigate the contributing factors (such as bridge geometry, location of ruptured cable, load cases, duration of cable loss and damping ratio) on the magnitude of DAF (Zoli and Woodward 2005;Ruiz-Teran and Aparicio 2007;Wolff and Starossek 2009;Wolff and Starossek 2010;Starossek 2011). On the other hand, some researchers have used the sophisticated continuum-based FE models and hydro-codes for investigating the local behaviour of cable stayed bridges subjected to abnormal loads such as blast and fire Tang and Hao 2010;Son and Lee 2011;Wang 2011).…”

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confidence: 99%

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A Study on Potential Progressive Collapse Responses of Cable-Stayed Bridges

Aoki

Valipour

Samali

et al. 2013

Advances in Structural Engineering

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In this paper, a finite element (FE) model for a cable-stayed bridge designed according to Australian standards is developed and analysed statically and dynamically with and without geometrical nonlinearities. The dynamic amplification factor (DAF) and demand-to-capacity ratio (DCR) in different structural components including cables, towers and the deck are calculated and it is shown that DCR usually remains below one (no material nonlinearity occurs) in the scenarios studied for the bridge under investigation, however, DAF can take values larger than two. Moreover, effects of location, duration and number of cable(s) loss as well as effect of damping level on the progressive collapse resistance of the bridge are studied and importance of each factor on the potential progressive collapse response of the bridgeis investigated.

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Section: Cable Loss Scenariosmentioning

confidence: 99%

Section: Cable Loss Scenariosmentioning

confidence: 99%

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confidence: 99%

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A Study on Potential Progressive Collapse Responses of Cable-Stayed Bridges

Aoki

Valipour

Samali

et al. 2013

Advances in Structural Engineering

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“…that scenarios in which more than one cable is lost should not be ignored (Wolff & Starossek, 2010). Accordingly, in this paper both symmetric and unsymmetric cable loss scenarios with more than one lost cable are considered.…”

Section: Cable Loss Scenariosmentioning

confidence: 99%

Effect of loading pattern and deck configuration on the progressive collapse response of cable-stayed bridges

Samali¹,

Aoki²,

Saleh³

et al. 2015

AJSE

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In the cable stayed-bridges, sudden loss of cables is usually associated with material as well as geometrical non-linearities that may trigger progressive collapse of the entire bridge. Accordingly, in this paper detailed 3D fi nite element models of a hypothetical cable-stayed bridge is developed and analysed with material and geometrical non-linearities included. A parametric study is undertaken and effect of cable loss scenarios (symmetric and unsymmetric), deck confi gurations (steel box girder and open orthotropic deck) and number of lost cables on the progressive collapse response of the bridge is investigated. With regard to the results of parametric study, it is concluded that the deck confi guration has a minor infl uence on the progressive collapse response of cablestayed bridges.Also, it is shown that localised yielding of steel may occur following loss of more than one cable, however, such localised plastic strains cannot trigger the progressive collapse of the entire bridge. During cable loss scenarios, the reduction in post-tensioning stress and subsequently stiffness of the remaining cables (refl ected in Ernst's modulus) is found to be around 10% that warrants effect of geometrical non-linearities within the cables being considered.

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“…For most parts of relevant structures this value can be regarded as conservative or at least adequate. Nevertheless it must be highlighted that higher values might occur, for example bending moments in pylons of cable stayed bridges, see [5]. Therefore it is recommended and often even necessary to perform a nonlinear dynamic analysis.…”

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confidence: 99%

13.16: Design of tension components: Revision and further development of EN 1993‐1‐11

Annan¹,

Bechtold

Friedrich

et al. 2017

ce papers

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The paper gives an introduction as well as background information on proposed changes and amendments in EN 1993-1-11 "Design of structures with tension components", implemented during the ongoing revision. Due to some deficits in the currently applicable standard this revision is not only limited to some restructuring and editorial changes, but includes also major technical changes in the following fields: safety concept and structural analysis, actions and loads, robustness and reparability, design of tension components and design of clamps and saddles.

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Cable-loss analyses and collapse behavior of cable-stayed bridges

Cited by 22 publications

References 0 publications

A Study on Potential Progressive Collapse Responses of Cable-Stayed Bridges

A Study on Potential Progressive Collapse Responses of Cable-Stayed Bridges

Effect of loading pattern and deck configuration on the progressive collapse response of cable-stayed bridges

13.16: Design of tension components: Revision and further development of EN 1993‐1‐11

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