Review
Construction & Building Technology
Jeonghyun Kim
Summary: This study reviews the literature on the effect of recycled aggregate quality on the mechanical properties of concrete and includes discussions on the characteristics of recycled aggregate and factors influencing its quality. Data on the fresh and hardened properties of recycled aggregate concrete mixed with different qualities are reviewed, providing insights into the effective utilization of recycled aggregate.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Civil
Xingwang Li, Yike Zheng, Mohammad Dahman Alshehri, Linpeng Hai, Venki Balasubramanian, Ming Zeng, Gaofeng Nie
Summary: This study focuses on the reliable and secure performance of Internet-of-Vehicle enabled Maritime Transportation Systems communication. Analytical expressions for outage probability and intercept probability are obtained. The results show specific characteristics of system performance in high signal-to-noise ratio and high main-to-eavesdropper ratio regimes, and a trade-off between reliability and security can be achieved by carefully selecting system parameters.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Construction & Building Technology
Dan Ma, Hongyu Duan, Jixiong Zhang
Summary: This paper investigates the hydraulic properties of fault rock through one-dimensional radial seepage experiments. The results show that the permeability and porosity increase with time, and the occurrence process of water inflow can be divided into four stages. It is also found that the decrease of grain size distribution and the increase of water pressure lead to significant changes in hydraulic properties. The Carman-Kozoeny model demonstrates the highest accuracy among the tested prediction models, and it predicts a higher final permeability closer to the water outlet.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2022)
Review
Construction & Building Technology
Ruijun Wang, Zhiyao Hu, Yang Li, Kai Wang, Hao Zhang
Summary: This overview explains the freeze-thaw durability mechanisms of concrete and proposes measures for enhancement. Concrete additives can effectively improve freeze-thaw durability by improving pore systems, reducing water absorption, and controlling crack resistance. Furthermore, the concept of designing a durable concrete cover system is introduced.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Linchuan Yang, Yuan Liang, Baojie He, Yi Lu, Zhonghua Gou
Summary: Based on an analysis of property transaction data in Chengdu, this study finds that the implicit price of metro accessibility decreases during COVID-19, indicating a decline in the role of the metro and a smaller price gap between proximate and distant properties. However, COVID-19 does not have a negative impact on property prices in Chengdu, and the decrease in metro access premiums may be temporary.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2022)
Article
Construction & Building Technology
Abdullah M. Zeyad, Hassan M. Magbool, Bassam A. Tayeh, Afonso Rangel Garcez de Azevedo, Ahmed Abutaleb, Qudeer Hussain
Summary: Research has shown that using volcanic pumice dust (VPD) with cement kiln dust (CKD) or Ordinary Portland cement (OPC) to produce alkaline activated green concrete (HAC) can improve mechanical performance, strength, and engineering properties. Partial replacements of CKD or OPC can increase compressive strength and reduce water absorption rate.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Construction & Building Technology
Hemn Unis Ahmed, Ahmed S. Mohammed, Rabar H. Faraj, Shaker M. A. Qaidi, Azad A. Mohammed
Summary: This paper provides a detailed review on the effect of adding nano-silica (nS) on the compressive strength (CS) of geopolymer concrete (GPC). Various models, including artificial neural network (ANN), M5Ptree, linear regression, nonlinear regression, and multi logistic regression models, were developed to forecast the CS of GPC incorporated nS. Experimental results showed that the addition of nS improves the CS of GPC, and the ANN model performed the best in predicting the CS. Additionally, the alkaline solution to binder ratio, molarity, NaOH content, curing temperature, and ages were identified as significant parameters influencing the CS of GPC incorporated nS.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Construction & Building Technology
Mehran Khan, Mingli Cao, Chaopeng Xie, Majid Ali
Summary: This study examines the uniaxial compressive behavior of multi scale hybrid fiber reinforced concrete and investigates the influence of basalt fiber length and content on the properties of steel fiber-calcium carbonate whisker reinforced fly ash concrete. The results show that the multi scale hybrid fiber reinforced concrete exhibits superior compressive characteristics compared to plain concrete.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Review
Engineering, Civil
Wengang Zhang, Liang Han, Xin Gu, Lin Wang, Fuyong Chen, Hanlong Liu
Summary: This paper presents a comprehensive review of the application of spatial variability in tunneling and deep excavation over the past 20 years. It is found that considering spatial variability can better capture the performance of tunnels and deep excavations, but there are still many scientific problems and research gaps.
Article
Engineering, Civil
Jinchao Chen, Ying Zhang, Lianwei Wu, Tao You, Xin Ning
Summary: This study focuses on the automatic path planning of autonomous unmanned aerial vehicles (UAVs) with different capabilities using linear programming and clustering algorithms to minimize the time consumption of search tasks.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Engineering, Civil
Xu Chen, Nailiang Xiang, Zhongguo Guan, Jianzhong Li
Summary: This study investigates the seismic fragility and financial losses of tall pier bridges subjected to mainshock-aftershock (MA) sequences. The results show that while the mainshocks have a more substantial impact, neglecting the aftershocks underestimates the failure probability and financial loss of the bridge.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Civil
Feng Ding, Keping Yu, Zonghua Gu, Xiangjun Li, Yunqing Shi
Summary: This study introduces a generative adversarial network to improve various degraded images, with a novel architecture to handle additional attributes between image styles, enhancing the accuracy and training efficiency of restoration. Compared to other methods, it shows better performance in restoration and is reliable for assisting context prediction in autonomous vehicles.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Engineering, Civil
Fanlei Kong, Fenghui Dong, Maojun Duan, Mostafa Habibi, Hamed Safarpour, Abdelouahed Tounsi
Summary: This article focuses on the vibration of a three-layered disk consisting of an ER core and two GPLRC face sheets. The shear strain and stress of the ER layer in pre-and post-yield state are obtained using FSDT and TSDT models. The HDQM method is employed to acquire the results, which are validated through comparison with other published studies. The investigation also explores the influence of GPLs distribution, foundation parameters, disk geometry, and GPLs weight fraction on the system's vibrational behavior.
THIN-WALLED STRUCTURES
(2022)
Article
Construction & Building Technology
Yuxiang Tang, Jianzhuang Xiao, Hanghua Zhang, Zhenhua Duan, Bing Xia
Summary: This study proposes a fully recycled aggregate concrete (FRAC) prepared by replacing natural aggregates and partially replacing cement with recycled materials. The addition of recycled materials has a negative effect on concrete strength and shows little effect on the ascending branch of stress-strain curves but influences the descending branch. The elastic modulus decreases due to the incorporation of recycled aggregates and recycled powder.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Civil
Xueyan Yin, Genze Wu, Jinze Wei, Yanming Shen, Heng Qi, Baocai Yin
Summary: Traffic prediction is crucial for intelligent transportation systems, and deep learning methods have greatly improved the accuracy of traffic prediction. This study provides a comprehensive survey on deep learning-based approaches in traffic prediction, summarizing the latest methods and discussing open challenges in the field.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Engineering, Civil
Yunchao Tang, Ming Zhu, Zheng Chen, Changjie Wu, Ben Chen, Cong Li, Lijuan Li
Summary: This study compares the performance differences between recycled aggregate concrete-filled steel tube columns (RACSTCs) and ordinary concrete-filled steel tube contrast columns (OCSTC) through low cycle reciprocating load tests. A vision measurement system was developed to track the full field deformations of specimens, and the results show that RACSTCs have good seismic and deformation performance. The proposed method of using vision measurement system can accurately measure the deformations of RACSTCs.
Article
Engineering, Civil
Zhihan Lv, Dongliang Chen, Hailin Feng, Hu Zhu, Haibin Lv
Summary: This study explores the impact of Digital Twins in Unmanned Aerial Vehicles on providing medical resources during COVID-19 prevention and control, introducing deep learning algorithms and proposing a UAV DTs information forecasting model. The model shows better performance in terms of transmission delays, energy consumption, task completion time, and resource utilization rate compared to other state-of-art models as end-users and task proportion increase.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Construction & Building Technology
Panagiotis G. Asteris, Paulo B. Lourenco, Panayiotis C. Roussis, Chryssi Elpida Adami, Danial J. Armaghani, Liborio Cavaleri, Constantin E. Chalioris, Mohsen Hajihassani, Minas E. Lemonis, Ahmed S. Mohammed, Kypros Pilakoutas
Summary: A model for estimating the compressive strength of concretes incorporating metakaolin was developed and evaluated using soft computing techniques. The model took into account six parameters as input data and was able to accurately estimate the compressive strength, considering the usage of metakaolin. The study highlighted the nonlinear influence of mix components on the resulting concrete compressive strength.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Civil
Su Liu, Jiong Yu, Xiaoheng Deng, Shaohua Wan
Summary: In this study, an efficient communication approach called FedCPF is proposed to achieve fast convergence and improve testing accuracy in vehicular edge computing. By customizing local training strategies, introducing partial client participation rules, and implementing flexible aggregation policies, FedCPF outperforms the traditional FedAVG algorithm and performs well in various FL settings.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Engineering, Civil
Pham Van Vinh, Abdelouahed Tounsi
Summary: This paper investigates the free vibration of functionally graded doubly curved nanoshells using nonlocal first order shear deformation theory, and the frequencies are obtained via Navier's solution technique. The effects of various parameters on the vibration response are also studied.
THIN-WALLED STRUCTURES
(2022)
