Review of annual progress of bridge engineering in 2019

Zhao, Renda; Yuan, Yuan; Wei, Xing; Shen, Ruili; Zheng, Ke; Yong-jiu, Qian; Pu, Qianhui; Zhang, Qinghua; Liao, Haili; Li, Xiaozhen; Zhao, Canhui; Xu, Guoji; Gou, Hongye; Zhang, Ziyang; Yu, Chuanjin

doi:10.1186/s43251-020-00011-w

Cited by 12 publications

(8 citation statements)

References 266 publications

(231 reference statements)

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“…Static modeling is widely used to investigate the mechanical respond of bridge elements as noted by Zhao et al [24]. The performance assessment of modern bridge bearing cannot be carryied out only using building codes and standards [25].…”

Section: About the Materials And Methodsmentioning

confidence: 99%

Influence Analysis of the Antifriction Layer Materials and Thickness on the Contact Interaction of Spherical Bearings Elements

2022

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Bearings are the supporting elements of bridges. They perceive vertical and horizontal loads from the bridge span. Spherical bearings are one of the construction common types. The material and configuration of the anti-friction layers determine the bearing performance. The paper performed the contact deformation analysis of spherical bearing elements at a nominal vertical load of 1000 kN. The six types of the spherical sliding layer material are considered: ultra-high molecular weight polyethylene (UHMWPE) from three different manufacturers, modified polytetrafluoroethylene (PTFE), and composite materials by PTFE with two different forms of reinforcing bronze inclusions. Young’s modulus, Poisson’s ratio, and strain curve are obtained experimentally for spherical sliding layer materials. Paper considered the influence of the sliding layer material on the contact parameters and deformation characteristics of the structure with a standard interlayer thickness by 4 mm. Research observed significant the composite interlayer deformation and the appearance of “no contact” zones on the mating surfaces. The option of increasing the sliding layer thickness up to 6–8 mm is considered. A decrease is observed in the maximum level of contact parameters by increase of the sliding layer thickness. The influence of the anti-friction layer materials becomes insignificant on the bearing deformation with an increase of the spherical sliding layer thickness.

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Section: About the Materials And Methodsmentioning

confidence: 99%

Influence Analysis of the Antifriction Layer Materials and Thickness on the Contact Interaction of Spherical Bearings Elements

2022

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“…Literature [10] formed seismic vulnerability curves of reinforced concrete piers based on traditional reliability methods and numerical simulation methods and compared the seismic vulnerability curves obtained by the two methods. Literature [11] uses the Monte Carlo sampling simulation method to form the seismic vulnerability curve of the bridge structure. The response of the structure is calculated by two different methods, namely, the nonlinear dynamic time history analysis method and the capacity spectrum method.…”

Section: Related Workmentioning

confidence: 99%

Research on Seismic Vulnerability of High-Pier and Long-Span Bridges Based on Improved IMK Resilience Model

Wang

Yin

2022

Journal of Sensors

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After the fragility curve is established, the probability of structural damage reaching each level of damage under the action of the ground motion can be determined according to the ground motion parameters, so as to calculate the direct and indirect loss caused by the structural damage and complete the earthquake damage prediction. This paper combines the improved IMK resilience model to study the seismic vulnerability of high-pier and long-span bridges. Moreover, this paper obtains the parameter calculation model based on the regression analysis of PEER’s 255 column specimen data. The improved IMK model needs to modify the elastic stiffness and strain hardening rate of the rotating spring to ensure the accuracy of the lateral stiffness of the component. The experimental research shows that the seismic vulnerability research model of high-pier and long-span bridges based on the improved IMK restoring force model has a certain analytical effect.

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“…Thus, it is essential to study the countermeasure to protect the coastal bridge decks. As shown in Table 4, the strategies for protecting the bridge deck including the studies of air vents in the bridge deck (e.g., Bozorgnia et al 2010;Azadbakht 2013;Hayatdavoodi et al 2014;Xu et al 2016;Xiao and Guo 2018;Zhao et al 2020aZhao et al , 2020b, the height of shear keys (e.g., Chen et al 2016), the connection between the superstructures and substructures (e.g., Xu and Cai 2015;Balomenos and Padgett 2018;Cai et al 2018;Yuan et al 2018), the offshore submerged breakwater (e.g., Wei and Dalrymple 2016), the offshore floating breakwater (e.g., Qu et al 2020a) and so on. Figure 8 gives a design of air vent distributed on the slab and the corresponding airflow field induced by the incident wave.…”

Section: Countermeasuresmentioning

confidence: 99%

“…To have a better practical performance evaluation and concept of interface design, Yuan et al (2018) proposed a practical guide for the connection design under wave-deck interaction by suggesting using a structural capacity model with a three-step framework. With the further understanding of the failure mechanism of bridge deck under various wave conditions, more countermeasures and models about the quantification of vulnerability and resilience of the bridge system under extreme wave loadings are expected to be proposed for improving the resilience of the coastal bridges (Balomenos and Padgett 2018;Qeshta 2019;Qeshta et al 2019;Zhao et al 2020aZhao et al , 2020b.…”

Section: Countermeasuresmentioning

confidence: 99%

“…When the incident wave directly hits the elevated bridge deck, wave breaking occurs, resulting in wave overtopping above the deck surface and air bubbles forming in the water. The conventional potential flow method faces a difficult challenge in accurately predicting the highly nonlinear wave-deck interaction, and such cases are best studied by the use of the computational fluid dynamics (CFD) solvers regardless of the submerged or elevated condition of the bridge deck (e.g., Huang and Xiao 2009;Bozorgnia et al 2010;Xiao et al 2010;Jin and Meng 2011;Bricker et al 2012;Bozorgnia and Lee 2012;Yim and Azadbakht 2013;Azadbakht 2013;Azadbakht and Yim 2014;Hayatdavoodi et al 2014;Xu and Cai 2014;Ataei and Padgett 2014;Seiffert et al 2015;Xu and Cai 2015;Xu and Cai 2015;Chen et al 2016;Xu et al 2018a;Xu et al 2018b;Xiao and Guo 2018;Huang, Yang, et al, 2019;Istrati and Buckle 2019;Qu et al 2019;Moideen et al 2019;Montoya et al 2019;Greco et al 2020;Hu et al 2020;Qu et al 2020a;Qu et al 2020b;Xiang et al 2020;Yang et al 2020;Zhao et al 2020aZhao et al , 2020bZhu and Dong 2020).…”

mentioning

confidence: 99%

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Review of wave forces on bridge decks with experimental and numerical methods

Chen

et al. 2021

ABEN

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Massive coastal bridges were damaged in Hurricanes Ivan (2004) and Katrina (2005), and considerable efforts have been devoted to the studies of wave forces acting on bridge decks since then. When the hurricane and tsunamis approach the coastal zones, the mean water level is elevated, making it possible for the incident wave to hit the bridge deck directly. The study of wave force acting on the bridge deck is essential for the investigation of bridge failure mechanism, and a literature review of wave forces with experimental and numerical methods after Hurricanes Ivan and Katrina is presented in this paper. Though the experiments and numerical models can not fully simulate the wave-deck interaction as in realistic conditions, remarkable progress has been achieved, and some significant findings help the researchers to further understand the failure mechanism of the bridge deck. Emphasis is given to the studies that have significantly improved our understanding of the topic. Challenges associated with the existing studies and suggestions for future studies are presented for a deeper understanding of the failure mechanism of the bridge deck, and more countermeasures are expected to protect the bridge deck under extreme wave forces.

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Review of annual progress of bridge engineering in 2019

Cited by 12 publications

References 266 publications

Influence Analysis of the Antifriction Layer Materials and Thickness on the Contact Interaction of Spherical Bearings Elements

Influence Analysis of the Antifriction Layer Materials and Thickness on the Contact Interaction of Spherical Bearings Elements

Research on Seismic Vulnerability of High-Pier and Long-Span Bridges Based on Improved IMK Resilience Model

Review of wave forces on bridge decks with experimental and numerical methods

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