Fatigue Life Evaluation of Critical Details of the Hercílio Luz Suspension Bridge

Liu, Z.; Hebdon, Matthew H.; Correia, José A.F.O.; Carvalho, Hermes; Vilela, Paula Moura Leite; Jesus, Abílio M.P. De; Calçada, Rui

doi:10.1016/j.prostr.2017.07.063

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…Kashefi et al (2010) presented the procedures used for assessment of remaining fatigue life of an aging steel deck bridge using strain field measurements carried out on critical fatigue details as well as laboratory tests on limited samples. Liu et al (2017) performed a fatigue life evaluation for critical connections of a suspension bridge under the passing fatigue truck load. Leander et al (2018) presented a case study of a steel railway bridge subjected to fatigue deterioration with an overall aim to support rational decisions on how to evaluate and procure different assessment actions to improve the accuracy of the predicted service life of existing bridges.…”

Section: Literature Surveymentioning

confidence: 99%

Diagnostic Testing of a Vertical Lift Truss Bridge for Model Verification and Decision-Making Support

Shahsavari

Mashayekhi

Mehrkash

et al. 2019

Front. Built Environ.

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A practical long term structural health monitoring program must be based on reasonable field capabilities, the needs of the bridge owner, and the anticipated structural behavior unique to the structure. Each sensor installed as part of the monitoring program should provide information directly in response to operational needs related to the structure's short term and long term performance. A thoughtfully considered instrumentation plan developed in cooperation with the bridge designer, bridge manager, bridge maintenance operator and academic researchers will provide data to enhance both the state of the practice and state of the art for the bridge structural design, management and maintenance. Monitoring a bridge's structural response has the potential to (a) detect the presence of structural changes for condition assessment, (b) inform the bridge manger to assist in daily operational decision-making and (c) validate the structural design assumptions and (d) refine a structural model of the bridge to be used for performance prediction. The excitation for these responses typically comes from traffic or environmental demands. Vertical lift bridges provide a unique opportunity for structural health monitoring based on the dynamic response due to the frequent and repeated impact imparted on the structure each time the lift span opens and closes. In this paper, a structural health monitoring system designed to provide valuable information for design verification, structural model calibration, fatigue monitoring, and operational decision-making support for the reconstructed Memorial Bridge carrying US Route 1 between Portsmouth, New Hampshire and Kittery, Maine. This paper will detail the development of the sensor layout including input from stakeholders, accessibility issues and complementary and contradicting objectives. A set of structural models with varying degrees on complexity were created based on the structural performance objectives. The data collected during a pseudo-static truck load test was used to calibrate the structural models of the bridge and to select the appropriate model for each post-processing and decision-making tools related to structural performance.

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Section: Literature Surveymentioning

confidence: 99%

Diagnostic Testing of a Vertical Lift Truss Bridge for Model Verification and Decision-Making Support

Shahsavari

Mashayekhi

Mehrkash

et al. 2019

Front. Built Environ.

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“…In 2012, Guo et al [16] proposed a probabilistic finite element analysis method in combination with the traffic load model to evaluate the time-varying fatigue reliability level of steel bridge welding details. In 2017, Liu et al [17] used the fatigue load model to evaluate the fatigue life, the results show that the connection between the truss and the beam at the transition point is prone to fatigue damage. In 2018, Yuan et al [18] used a probabilistic finite element model to estimate the microscopic small fatigue crack growth in the weld of bridge steel.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Performance Evaluation of K-Type Joints in Long-Span Steel Truss Arch Bridge

Liu

Chen

et al. 2022

Metals

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The K-type joint, which consists of the web members and the chord members with varied angles welded together, has been widely adopted in long-span steel truss bridges. However, its fatigue performance has been rarely considered, despite its critical role in bridge structural safety and durability. Accordingly, the FE model of the K-type joint was established in Abaqus and the fatigue performance analysis was conducted, in which the effect of web/chord thickness ratio (τ), chord/web angle (θ), and chord with rib stiffener were investigated. Take the Mingzhu Bay steel truss arch bridge as an engineering background, the hot spot stress method was employed to calculate the fatigue performance of three K-type joints in unfavorable locations. Furthermore, a 3D full-scall bridge model was built to evaluate the fatigue performance of the K-type joints under standard and overloaded moving vehicle load scenarios. The results show that the max hot spot stress factor (SCFmax) of the web and chord member is influenced by τ and θ. The chord members added stiffener is founded to be an effective way to enhance fatigue performance. The fatigue stress intensities of the three unfavorable locations meet the Eurocode 3 specification requirements, but the one in the mid-truss arch is not satisfied under an overloaded vehicle loading rate of 25%.

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“…Recent studies have proposed the application of local approaches, based on fracture mechanics or on strain or stress-life relations, determined for the base material with smooth specimens, for the fatigue analysis of metallic structures (Sanches et al, 2015;Jesus et al, 2014Jesus et al, , 2015. There are few papers available in the literature that apply local approaches in the fatigue analysis of riveted bridges (DePiero et al, 2002;Al-Emrani and Kliger, 2003;Iman, 2006;Imam et al, 2007;Righiniotis et al, 2008;Imam and Righiniotis, 2010;Muñiz-Calvente et al, 2017;Horas et al, 2017;Kwad et al, 2017;Liu et al, 2017). Although these approaches may potentially be applied to any type of connection, they require a detailed analysis of the stresses on the connections and, consequently, considerable computational resources are required to overcome the structural bridge scale and the fatigue damage local scale.…”

Section: Introductionmentioning

confidence: 99%

A methodology for a global-local fatigue analysis of ancient riveted metallic bridges

Leite

Jesus

Correia

et al. 2018

IJSI

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Purpose Recent studies have proposed the application of local fatigue approaches based on fracture mechanics or on strain-life material relations for the fatigue analysis of metallic structures. However, only few studies in the literature apply local approaches in the riveted bridges analysis; although these approaches can be applied to any type of connections, requiring a detailed stress analysis of joints and, consequently, considerable computational resources costs. The approach based on S-N curves, formulated in nominal or net stresses, is more usual in the fatigue analysis of riveted bridges. Due to economic factors, riveted bridges have had their operating life extended, while changes in the transport system over the years have subjected such structures to overloads different from those originally planned. These bridges, most of them centenary, were not originally designed accounting for fatigue damage; they represent an important group of structures that are very likely subjected to significant fatigue damage indexes. These factors make necessary detailed residual fatigue life studies to substantiate the decisions of extend (or not) the operational period of these bridges. The paper aims to discuss these issues. Design/methodology/approach The present paper presents a methodology aiming at applying the local approaches in the fatigue analysis of riveted joints of metallic bridges, through the use of sub-modeling techniques and procedures automation. The use of such techniques made such an application viable by keeping the computational costs involved at a moderate level. The proposed procedures were demonstrated using the Trezói Railway Bridge, located on the Beira Alta line, Portugal, built shortly after the Second World War. The proposed set of procedures allowed, through finite elements analysis, to obtain the relevant stresses to perform local fatigue damage analysis. A global structural model was constructed, using beam elements, and local models of a critical node were built with solid finite elements. The structure is analyzed under the passage of regulatory trains. The details of the modeling performed and the computation of the principal stresses in the vicinity of a node and the tangential/circumferential stresses at the holes of two critical riveted connections of that node are analyzed and a fatigue damage analysis is carried out. Findings In the proposed submodelling approach, disassembling the complex riveted nodes into riveted subassemblies allowed the evaluation of the local stresses at riveted holes at an affordable computational cost. Originality/value A methodology is proposed to allow the application of local fatigue analysis in real complex riveted joints, mitigating the computational costs that would result from a full model of the node with all rivets.

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Fatigue Life Evaluation of Critical Details of the Hercílio Luz Suspension Bridge

Cited by 7 publications

References 23 publications

Diagnostic Testing of a Vertical Lift Truss Bridge for Model Verification and Decision-Making Support

Diagnostic Testing of a Vertical Lift Truss Bridge for Model Verification and Decision-Making Support

Fatigue Performance Evaluation of K-Type Joints in Long-Span Steel Truss Arch Bridge

A methodology for a global-local fatigue analysis of ancient riveted metallic bridges

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