scispace - formally typeset
Search or ask a question

Showing papers in "Journal of Computing in Civil Engineering in 2020"


Journal ArticleDOI
TL;DR: This research presents a novel and scalable approaches called "Smart Contracts" for crack detection that combine reinforcement learning and reinforcement learning to solve the challenge of discrete-time crack detection problems.
Abstract: With the advancement of machine learning (ML) and deep learning (DL), there is a great opportunity to enhance the development of automatic crack detection algorithms. In this paper, the aut...

130 citations


Journal ArticleDOI
TL;DR: This research focuses on applying deep learning-based techniques to crack detection for civil infrastructure inspection and shows promising results in terms of accuracy, efficiency, and efficiency.
Abstract: Crack detection has been an active research topic for civil infrastructure inspection. Over the last few years, many research efforts have focused on applying deep learning-based techniques...

93 citations


Journal ArticleDOI
TL;DR: Automated interpretation of closed-circuit television (CCTV) inspection videos could improve the speed and consistency of sewer condition assessment.
Abstract: Automated interpretation of closed-circuit television (CCTV) inspection videos could improve the speed and consistency of sewer condition assessment. Previous approaches focus on defect cla...

81 citations


Journal ArticleDOI
TL;DR: A prestressed cable-strut structure is usually regarded as a mechanism before being prestressed as discussed by the authors, and under the action of initial prestresses, the internal infinitesimal mechanisms can be rigidi...
Abstract: A prestressed cable-strut structure is usually regarded as a mechanism before being prestressed. Under the action of initial prestresses, the internal infinitesimal mechanisms can be rigidi...

59 citations


Journal ArticleDOI
TL;DR: In this paper, activity analysis of construction resources is generally performed by manually observing construction operations either in person or through recorded videos, and it is thus prone to observer façade bias.
Abstract: Activity analysis of construction resources is generally performed by manually observing construction operations either in person or through recorded videos. It is thus prone to observer fa...

48 citations


Journal ArticleDOI
TL;DR: This data indicates that the number of leaks in buried water distribution pipelines typically remain undetected indefinitely because the impact small leaks have on the overall system pressure is imperceptible.
Abstract: Small leaks in buried water distribution pipelines typically remain undetected indefinitely because the impact small leaks have on the overall system pressure is imperceptible. This difficu...

45 citations


Journal ArticleDOI
TL;DR: The current inspection procedure for facade inspection and maintenance needs to be carried out periodically, and the detection of cracks is a core component of the inspection process.
Abstract: Building facade inspection and maintenance needs to be carried out periodically, and the detection of cracks is a core component of the inspection process. The current inspection procedure ...

40 citations


Journal ArticleDOI
TL;DR: This paper presents a meta-modelling system that automates the very labor-intensive and therefore time-heavy and expensive process of designing and building virtual reality models for architectural design.
Abstract: With the help of virtual reality (VR), architectural design can be visualized interactively and at full scale. Viewers of VR models also gain an additional sense of spatial depth and volume...

40 citations


Journal ArticleDOI
TL;DR: This data indicates that the use of robots in the construction industry as an effective means of improving construction safety and productivity is still in its early stages.
Abstract: Robotic solutions have garnered increased attention from the construction industry as an effective means of improving construction safety and productivity. However, in deploying such robots...

39 citations


Journal ArticleDOI
TL;DR: This paper presents a genetic algorithm (GA) for resource-constrained project scheduling problem (RCPSP) that simplifies and automates the very labor-intensive and therefore time-heavy process of construction management.
Abstract: The resource-constrained project scheduling problem (RCPSP) is an important and challenging problem in the field of construction management. This paper presents a genetic algorithm (GA) for...

37 citations


Journal ArticleDOI
TL;DR: This work presents a process for automated end-to-end inspection of area defects—specifically spalls and delaminations—in RC bridges using a mobile robotic platform.
Abstract: This work presents a process for automated end-to-end inspection of area defects—specifically spalls and delaminations—in RC bridges. The process uses a mobile robotic platform to collect t...

Journal ArticleDOI
TL;DR: This work presents a novel approach to pixel-level crack detection that combines supervised learning with reinforcement learning to solve the challenge of integrating image recognition and reinforcement learning into a single model.
Abstract: Deep learning is a state-of-the-art approach to pixel-level crack detection. However, it relies on a large number of source–target image pairs for the training, which is very expensive. Thi...

Journal ArticleDOI
TL;DR: AbstractMissing, incomplete, implicit, and/or incorrect information are major obstacles to automated code compliance checking in the construction industry.
Abstract: Missing, incomplete, implicit, and/or incorrect information are major obstacles to automated code compliance checking in the construction industry. All existing platforms for automated code...

Journal ArticleDOI
TL;DR: This work states that the action analysis and semantic interpretation of images have recently attracted increased attention in the field of computer vision, but it is difficult for an intelligent monitoring system to understand these findings.
Abstract: The action analysis and semantic interpretation of images have recently attracted increased attention in the field of computer vision. However, it is difficult for an intelligent monitoring...

Journal ArticleDOI
TL;DR: This work has shown that prefabricated construction is gradually gaining acceptance within the market and laser scanning has already been adopted in civil engineering to reco...
Abstract: Due to higher efficiency and lower cost, prefabricated construction is gradually gaining acceptance within the market. Laser scanning has already been adopted in civil engineering to reconstruct 3D model of structure and monitoring the deformation and so on. This paper seeks to explore a more automated and accurate quality control process focusing on the surface defects in prefabricated elements. Laser scanning is adopted for data collection and the 3D reconstruction of the prefabricated components. Besides, a new point cloud pre-processing, involving the KNN algorithm, reduction of data dimension and data gridding, is developed to improve the efficiency and accuracy of subsequent algorithms. The Delaunay triangle is used to extract the contour of the point cloud, then the contour is fitted to further determine the geometric data. Meanwhile, a comprehensive quality control system of prefabricated components based on relevant specifications is proposed, and the quality of prefabricated components is monitored intuitively by the values of indicators. In order to integrate into the BIM platform and better store the obtained quality information, the production quality information is designed to be extended to the IFC standard. The proposed approach will be applied to analyze the causes of quality problems in the production process and strengthen the quality control. This study designs a more efficient and accurate quality evaluation process, including data collection, data processing, indicator calculation and quality evaluation. Moreover, the results forward can feedback to the cause of the quality issues, and further improve the production quality of prefabricated elements.

Journal ArticleDOI
TL;DR: This work states that awkward and improper postures and motions reduce productivity and increase project costs in the modular construction industry and ergonomic assessment is essential to identify, mitigate, and mitigate these problems.
Abstract: Awkward and improper postures and motions reduce productivity and increase project costs in the modular construction industry. Ergonomic assessment is essential to identify, mitigate, and p...

Journal ArticleDOI
TL;DR: The sounds of work activities and equipment operations at a construction site provide critical information regarding construction progress, task performance, and safety issues.
Abstract: The sounds of work activities and equipment operations at a construction site provide critical information regarding construction progress, task performance, and safety issues The construc

Journal ArticleDOI
TL;DR: A large number of studies have employed social media index or damage-related ratio and sentiment to estimate the damages during disasters but these studies did not address the importance of sentiment in estimating damages.
Abstract: Previous research has employed social media index such as disaster-related ratio (DIRR) or damage-related ratio (DARR) and sentiment to estimate the damages during disasters. These studies ...

Journal ArticleDOI
TL;DR: A large number of construction heavy machines often perform their routine tasks in the form of cyclic operations, and forecasting these operations is a natural application.
Abstract: Construction heavy machines often perform their routine tasks in the form of cyclic operations (e.g., cycles of digging, swinging, and dumping for a hydraulic excavator), and forecasting th...

Journal ArticleDOI
TL;DR: This data indicates that accurate and timely assessment of progress allows managers to make adjustments to minimize time and cost overruns in on-site construction monitoring activities.
Abstract: On-site construction inspection for progress monitoring is important because accurate and timely assessment of progress allows managers to make adjustments to minimize time and cost overrun...

Journal ArticleDOI
TL;DR: This research aims to develop the illumination compensation model (ICM) and k-shaped cracks detection model (KCSM) to improve pavement shadow–affected cracks detection.
Abstract: A small amount of research has been conducted in dealing with pavement shadow–affected cracks detection. Hence, this research aims to develop the illumination compensation model (ICM) and k...

Journal ArticleDOI
TL;DR: In the United States, it is common for crash reports to include a narrative that contains a police officer’s written summary of the crash that provides valuable information about the crash.
Abstract: In the United States, it is common for crash reports to include a narrative that contains a police officer’s written summary of the crash. The crash narratives provide valuable information ...

Journal ArticleDOI
TL;DR: This work aims to demonstrate the power of data analytics in the architecture, engineering, construction, and operations (AECO) industry by automating the very labor-intensive and therefore time-heavy and expensive process of building information modeling.
Abstract: Building information modeling (BIM) has gained significant momentum in the architecture, engineering, construction, and operations (AECO) industry and has shown the potential to transform p...

Journal ArticleDOI
TL;DR: One main gap in the automation of construction quantity takeoff (QTO) is the lack of a systematic method to address building information models created from different BIM authoring teams.
Abstract: One main gap in the automation of construction quantity takeoff (QTO) is the lack of a systematic method to address building information models (BIMs) created from different BIM authoring t...

Journal ArticleDOI
TL;DR: In this rapidly aging society, the mobility of older adults is critical for the prosperity and well-being of communities as discussed by the authors. But despite such importance, various types of environmental barriers (e.g., environmental barriers, roadblocks, and parking restrictions) have been proposed.
Abstract: In this rapidly aging society, the mobility of older adults is critical for the prosperity and well-being of communities. Despite such importance, various types of environmental barriers (e...

Journal ArticleDOI
TL;DR: This work presents a state-of-the-art approach to discrete-event simulation modeling for estimating the response of the immune system to earthquake-triggered landsliding.
Abstract: Stochastic, discrete-event simulation modeling has emerged as a useful tool for facilitating decision making in construction. Owing to the rigidity inherent to distribution-based inputs, cu...

Journal ArticleDOI
TL;DR: In this study, 10 population-based metaheuristic techniques are applied to the determination of the location and severity of damage in the damage assessment of structures.
Abstract: The determination of the location and severity of damage is a crucial task in the damage assessment of structures. In this study, 10 population-based metaheuristic techniques are applied to...

Journal ArticleDOI
TL;DR: This research presents a novel approach called “superimposition” for augmented reality (MAR) that combines the superimposition of computer-generated information with human interaction to create a 3D model of the real world.
Abstract: Mobile augmented reality (MAR) enhances the real world through the superimposition of computer-generated information while not interfering with a users’ mobility, having great potential to ...

Journal ArticleDOI
TL;DR: This data shows clear trends in improvements in the ability of wireless sensors and high-rate data acquisition systems to improve structural health monitoring accuracy and provide real-time information about structural health conditions.
Abstract: Advancement in sensing devices such as wireless sensors and high-rate data acquisition systems have recently enhanced inherent ability of structural health monitoring (SHM) where a large am...

Journal ArticleDOI
TL;DR: In this paper, the authors show that 3D surveying of a construction site using an image-based method may produce incorrect ground elevation results at vegetation-covered regions, because the light rays are...
Abstract: Three-dimensional (3D) surveying of a construction site using an image-based method may produce incorrect ground elevation results at vegetation-covered regions, because the light rays are ...