Showing papers in "Structure and Infrastructure Engineering in 2020"
TL;DR: After recent large earthquakes, field investigations confirmed that several bridges were severely damaged and collapsed not only due to the earthquake, as an independent hazard, but also to other factors.
Abstract: After recent large earthquakes, field investigations confirmed that several bridges were severely damaged and collapsed not only due to the earthquake, as an independent hazard, but also to...
110 citations
TL;DR: Through a critical review of 485 articles, this paper investigates current data-driven bridge O&M decision-making in detail, including mainstream data types, issues related to data management, and typical application areas using these data.
Abstract: Bridges are critical infrastructure, and effective operation and maintenance (O&M) is essential for ensuring the good condition of bridges. Owing to the increasing complexity of modern bridges and ...
92 citations
TL;DR: This study proposes a novel structural displacement measurement method using deep learning-based full field optical flow methods that gives higher accuracy than the traditional optical flow algorithm and shows consistent results in compliance with displacement sensor measurements.
Abstract: Current vision-based displacement measurement methods have limitations such as being in need of manual targets and parameter adjustment, and significant user involvement to reach the desired result...
90 citations
TL;DR: In this article, the immediate damage of highway bridges caused by natural hazards can disrupt transportation systems, which can cause a significant role in maintaining safety and functionality of the society, as well as a significant loss of revenue.
Abstract: Highway bridges play a significant role in maintaining safety and functionality of the society. The immediate damage of highway bridges caused by natural hazards can disrupt transportation systems,...
65 citations
TL;DR: In this article, reinforced concrete and reinforced reinforced concrete structures using conventional materials in aggressive exposure conditions are susceptible to corrosion, and non-corrosive reinforcement materials are not suitable for them.
Abstract: Reinforced Concrete (RC) and Prestressed Concrete (PC) structures using conventional materials in aggressive exposure conditions are susceptible to corrosion. Non-corrosive reinforcement materials ...
49 citations
TL;DR: In this paper, a study regarding the safety against crosswinds of a high speed train running over a railway bridge belonging to the future high-speed railway network in Russia is presented.
Abstract: A study regarding the safety against crosswinds of a high-speed train running over a railway bridge belonging to the future high-speed railway network in Russia is presented. The dynamic analyses a...
49 citations
TL;DR: In this paper, the authors consider the different ways in which potential climate change scenarios can affect the safety and performance of infrastructures and propose a framework to account for the different effects of climate change on infrastructure.
Abstract: Climate change may have multifaceted impacts on the safety and performance of infrastructure. Accounting for the different ways in which potential climate change scenarios can affect our infrastruc...
47 citations
TL;DR: In this paper, the authors developed and applied a procedure for detecting damage in a composite slab-on-girder bridge structure comprising of a reinforced concrete slab and three steel I beams.
Abstract: This paper develops and applies a procedure for detecting damage in a composite slab-on-girder bridge structure comprising of a reinforced concrete slab and three steel I beams, using vibration cha...
46 citations
TL;DR: Research findings suggest that the deep learning model offers a promising tool as a data-driven condition forecasting approach for bridge components with a demonstrated prediction accuracy over 85%.
Abstract: This paper presents a deep learning-based bridge condition rating data modeling approach using selected data from the National Bridge Inventory (NBI) database. The objective of this research is to ...
45 citations
TL;DR: In this paper, UHPFRC is combined with reinforcing steel bars forming a reinforced Cementitious Composite layer with the goal to enhance the performance of the UHP-FRC layer.
Abstract: ‘Structural UHPFRC’ stands for Ultra-High Performance Fibre Reinforced Cementitious Composite material, that is, complemented by reinforcing steel bars forming a R-UHPFRC layer with the goal to enh...
43 citations
TL;DR: A novel resilience-based optimisation model for post-disaster urban transportation network restoration that could obtain a set of general optimal restoration schedules in an efficient manner so that decision-makers could make a final choice by weighting other preferences and experience.
Abstract: Transportation network is of vital importance for city maintaining and reconstruction especially after extreme events. Decisions on the restoration plan of transportation network have to be made in...
TL;DR: A vision-based method is presented for bridge defects detection using transfer learning and convolutional neural networks (CNNs), which could automatically analyze and identify a large volume of collected images and shows quite better performance in accuracy and efficiency.
Abstract: Manual visual inspection is customarily used to identify and evaluate service status of bridges. However, current procedures followed by human inspectors demand long inspection time to access bridg...
TL;DR: A probabilistic approach is proposed to assess the seismic performance of transportation networks considering the uncertainties involved in the lifetime structural response of aging bridges under different earthquake scenarios and the time-variant seismic capacity associated with prescribed limit states is evaluated.
Abstract: The performance of lifelines under damage and emergency conditions induced by sudden extreme events, such as earthquakes, can be assessed based on the concept of resilience. Damage also arises in t...
TL;DR: The calibration and validation of a numerical model of a steel-concrete composite railway bridge considering the vehicle–track–structure interaction and a good agreement was achieved between experimental and numerical records regarding the displacements at the supports and deck, and the accelerations at the deck.
Abstract: This article focuses on the calibration and validation of a numerical model of a steel-concrete composite railway bridge considering the vehicle–track–structure interaction. The calibration of the ...
TL;DR: A significant vortex-induced vibration was observed in a suspension bridge under a wind velocity of approximately 6 and 7 m/s, and with a maximum amplitude that exceeded the serviceability of the bridge.
Abstract: A significant vortex-induced vibration (VIV) was observed in a suspension bridge under a wind velocity of approximately 6 and 7 m/s, and with a maximum amplitude that exceeded the serviceability li...
TL;DR: More than 40% of bridges in Southwest China have piers over 40'm height as mentioned in this paper and the seismic behavior of these bridges is critical, especially exposed to near-fault pulse-like ground motions.
Abstract: More than 40% of bridges in Southwest China have piers over 40 m height. The seismic behaviour of these bridges is critical, especially exposed to near-fault pulse-like ground motions. This paper c...
TL;DR: An efficient analysis framework for high-speed train-bridge coupled vibrations under non-stationary winds based on the pseudo excitation method (PEM) has been developed, in which the non- stationary winds were transformed into a series of pseudoharmonic excitation vectors.
Abstract: The consideration of train-bridge system under winds has been attracted extensive attentions, but the winds are typically treated as stationary. This stationary assumption clearly presents a depart...
TL;DR: The Endurance Time method is employed as an efficient procedure for estimating the engineering demand parameters at different seismic hazard levels and the proposed design procedure is employed in design optimization of two multi-story buildings.
Abstract: A framework for optimal seismic design of structures, considering maximum value as the design objective, is introduced. In this framework, the value parameter incorporates a comprehensive set of pe...
TL;DR: A deep learning (DL)-based method for the instance segmentation of cracks from shield tunnel lining images using a mask region-based convolutional neural network (Mask R-CNN) incorporated with a morphological closing operation, and a relative optimal model is found.
Abstract: This paper presents a deep learning (DL)-based method for the instance segmentation of cracks from shield tunnel lining images using a mask region-based convolutional neural network (Mask R-CNN) in...
TL;DR: The data related to the failure of bridges that occurred during the period 1977-2017 in India have been collected from various sources, including print and electronic media as mentioned in this paper, and the data have been clas...
Abstract: The data related to the failure of bridges that occurred during the period 1977–2017 in India have been collected from various sources, including print and electronic media. The data have been clas...
TL;DR: The lack of prior warning of an earthquake is a major cause of damage from surface transportation systems as discussed by the authors, along with the lack of adequate emergency preparedness for such an event can cause significant damage.
Abstract: Surface transportation systems are an essential part of urban transportation infrastructure and are susceptible to damage from earthquakes. This damage, along with the lack of prior warning of eart...
TL;DR: The management of civil infrastructures in the aftermath of a seismic event is a concern for decision makers, which have to choose quickly among alternative actions with limited knowledge on the ac... as mentioned in this paper.
Abstract: The management of civil infrastructures in the aftermath of a seismic event is a concern for decision makers, which have to choose quickly among alternative actions with limited knowledge on the ac...
TL;DR: The results show the capability of the proposed resilience framework in quantifying the detrimental effects of structural deterioration at the network scale and the beneficial consequences of infrastructure investments, such as enhancing the network redundancy with the construction of an additional highway branch.
Abstract: This paper presents a probabilistic framework for life-cycle seismic resilience assessment of aging bridges and transportation road networks subjected to infrastructure upgrade. The proposed framew...
TL;DR: In this article, a noncontact 3D scanning system was employed to capture the corrosion features of three naturally corroded steel beams and to reconstruct the 3D geometries of the beams.
Abstract: A non-contact three-dimensional (3 D) scanning system was first employed to capture the corrosion features of three naturally corroded steel beams and to reconstruct the 3 D geometries. A more reas...
TL;DR: It has been found that the kurtosis of the longitudinal level is a statistically significant predictor of the occurrence of isolated longitudinal level defects in a given track section.
Abstract: The aim of this study has been to develop a data-driven analytical methodology for prediction of isolated track geometry defects, based on the measurement data obtained from a field study. Within t...
TL;DR: The use of polyvinyl chloride (PVC) has become one of the dominant construction materials for sewer systems over the past decades, as a result of its reputed merits.
Abstract: Polyvinyl chloride (PVC) has become one of the dominant construction materials for sewer systems over the past decades, as a result of its reputed merits. However, since PVC sewer pipes have operat...
TL;DR: In this article, the authors identify key variables that influence crack formation in buried concrete sewer pipes and impact their structural integrity for evaluating the leakage and collapse vulnerability of the underground concrete sewer pipe.
Abstract: Identifying key variables that influence crack formation in buried concrete sewer pipes and impact their structural integrity is crucial for evaluating the leakage and collapse vulnerability of the...
TL;DR: In this article, sustainability becomes of paramount importance when the infrastructures such as bridges are designed to provide a long-lasting and intergenerational functionality, such as bridge repair.
Abstract: Essential infrastructures such as bridges are designed to provide a long-lasting and intergenerational functionality. In those cases, sustainability becomes of paramount importance when the infrast...
TL;DR: In this article, the authors review and summarise the major research work carried out on the performance and evolution of slab tracks from their first applications until today and present an assessment of the current syste...
Abstract: This article reviews and summarises the major research work carried out on the performance and evolution of slab tracks from their first applications until today. An assessment of the current syste...
TL;DR: The proposed damage detection framework for truss railway bridges based on operational strain responses could identify, locate and relatively assess the severity of the damage induced by stiffness change in instrumented truss elements.
Abstract: Railway bridges are a critical part of the railway infrastructure system and the majority of these bridges are approaching their expected design lifespan. These bridges need to be maintained effect...