System Fatigue Damage Reliability Assessment of Railway Riveted Bridges

Wang, Chun Sheng; Xu, Yue; Chen, Ai Rong; Chen, Wei Zhen

doi:10.4028/www.scientific.net/kem.347.173

Cited by 5 publications

(3 citation statements)

References 5 publications

(3 reference statements)

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“…Reliability models have been formulated to quantify the safety, i.e. the trend of the reliability index as function of the number of applied cycles, of both structural details and bridges, see [15,16] among others. An extensive review of the methods employed is reported in [17].…”

Section: Introductionmentioning

confidence: 99%

Fatigue life prediction of hot-riveted shear connections using system reliability

Leonetti

Maljaars

Snijder

2019

Engineering Structures

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Section: Introductionmentioning

confidence: 99%

Fatigue life prediction of hot-riveted shear connections using system reliability

Leonetti

Maljaars

Snijder

2019

Engineering Structures

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“…System reliability analysis of riveted bridges and connections has received limited attention, with only a few recent studies in that area. Wang et al (2006Wang et al ( , 2007 developed a system fatigue damage reliability model based on fracture mechanics principles investigating the behaviour of a riveted built-up girder. Probabilistic crack growth analysis of cracks initiating from the holes of angle clips were carried out and combined through systems analysis to estimate the reliability of the riveted girder.…”

Section: Introductionmentioning

confidence: 99%

Fatigue system reliability analysis of riveted railway bridge connections

Imam¹,

Chryssanthopoulos²,

Frangopol³

2019

Structures and Infrastructure Systems

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A system-based model for fatigue assessment of riveted railway bridge connections, comprising a number of basic components, is presented in this paper. Probabilistic fatigue load spectra are developed through Monte Carlo simulation of train passages over a finite element model of a typical, short-span bridge. Uncertainties arising from loading, resistance and modelling sources are taken into account. The riveted connection is treated through a set of generic subsystems that capture potential damage in identifiable hotspots, such as rivets, holes and angle fillets. The fatigue reliability over time is evaluated through system reliability methods by treating these hot-spots as the elements of a structural system. The results show that the probability of failure of the connection depends significantly on the form of the system adopted for the analysis and the rivet clamping force. Damage scenarios accounting for the potential loss of rivet clamping force are investigated and it is shown that, in some cases, they can affect connection reliability considerably.

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“…Based on the test data available in the literature, also new fatigue classes were proposed according to their proneness to fatigue failure [14]. Reliability models have been formulated to quantify the safety of both structural details [15] and bridges [16]. An extensive review of the method employed is reported in [17].…”

Section: Introductionmentioning

confidence: 99%

Reliability-based fatigue life estimation of shear riveted connections considering dependency of rivet hole failures

2018

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Standards and guidelines for the fatigue design of riveted connections make use of a stress range-endurance (S-N) curve based on the net section stress range regardless of the number and the position of the rivets. Almost all tests on which S-N curves are based, are performed with a minimum number of rivets. However, the number of rivets in a row is expected to increase the fail-safe behaviour of the connection, whereas the number of rows is supposed to decrease the theoretical stress concentration at the critical locations, and hence these aspects are not considered in the S-N curves. This paper presents a numerical model predicting the fatigue life of riveted connections by performing a system reliability analysis on a double cover plated riveted butt joint. The connection is considered in three geometries, with different number of rivets in a row and different number of rows. The stress state in the connection is evaluated using a finite element model in which the friction coefficient and the clamping force in the rivets are considered in a deterministic manner. The probability of failure is evaluated for the main plate, and fatigue failure is assumed to be originating at the sides of the rivet holes, the critical locations, or hot-spots. The notch stress approach is applied to assess the fatigue life, considered to be a stochastic quantity. Unlike other system reliability models available in the literature, the evaluation of the probability of failure takes into account the stochastic dependence between the failures at each critical location modelled as a parallel system, which means considering the change of the state of stress in the connection when a ligament between two rivets fails. A sensitivity study is performed to evaluate the effect of the pretension in the rivet and the friction coefficient on the fatigue life.

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System Fatigue Damage Reliability Assessment of Railway Riveted Bridges

Cited by 5 publications

References 5 publications

Fatigue life prediction of hot-riveted shear connections using system reliability

Fatigue life prediction of hot-riveted shear connections using system reliability

Fatigue system reliability analysis of riveted railway bridge connections

Reliability-based fatigue life estimation of shear riveted connections considering dependency of rivet hole failures

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