Article
Construction & Building Technology
Tianyao Liu, Xudong Qian, Wei Wang, Yiyi Chen
Summary: This article translates the ductile tearing process of welded joints made from circular hollow sections into the load resistance and strain levels, providing an interface between fracture-mechanics based assessments and engineering analysis and monitoring.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Mamdouh Al-Ghzawi, Khaled El-Rayes
Summary: This paper presents a machine learning methodology for quantifying the impact of alternative construction phasing plans on air traffic operations. The methodology includes developing multiple models, comparing their performance and prediction accuracy, and efficiently evaluating the impact of different construction phasing plans on airport operations, providing support for planners.
AUTOMATION IN CONSTRUCTION
(2024)
Article
Construction & Building Technology
Emanuel Martinez Villanueva, Pablo Martinez, Rafiq Ahmad
Summary: This study proposes a generative process planning algorithm for machining cross laminated timber (CLT) in robotic environments, enabling automatic interpretation of CLT panel geometries and guiding robots for machining, providing manufacturing results from geometric information at the design stage.
AUTOMATION IN CONSTRUCTION
(2024)
Article
Engineering, Civil
Zhipeng Zhao, Xiuyan Hu, Ruifu Zhang, Ming Xie, Songhe Liu
Summary: Inerter-based isolation systems are effective in providing seismic protection for storage tanks, reducing input energy and controlling sloshing heights precisely. This study proposes an advantageous feature-oriented optimal design for storage tanks with inerter-based isolation systems considering soil conditions.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Shravani Dhamane, Suman Kumar Mushahary, Konjengbam Darunkumar Singh
Summary: In this study, the strength of S700 steel material and T-stub made from S700 steel during fire was experimentally investigated. The results showed that about 90% of strength was regained at the cooling stage after the fire. The failure mode of the T-stub during the fire depended on its relative strength and the strength of the bolts.
THIN-WALLED STRUCTURES
(2024)
Article
Construction & Building Technology
Daniel Lamas, Andres Justo, Mario Soilan, Belen Riveiro
Summary: This paper introduces a new method for creating synthetic point clouds of truss bridges and demonstrates the effectiveness of a deep learning approach for semantic and instance segmentation of these point clouds. The proposed methodology has significant implications for the development of automated inspection and monitoring systems for truss bridges.
AUTOMATION IN CONSTRUCTION
(2024)
Article
Construction & Building Technology
Zaolin Pan, Yantao Yu
Summary: The construction industry faces safety and workforce shortages globally, and worker-robot collaboration is seen as a solution. However, robots face challenges in recognizing worker intentions in construction. This study tackles these challenges by proposing a fusion method and investigating the best granularity for recognizing worker intentions. The results show that the proposed method can recognize multi-granular worker intentions effectively, contributing to seamless worker-robot collaboration in construction.
AUTOMATION IN CONSTRUCTION
(2024)
Article
Construction & Building Technology
Sima Abolghasemi, Nicholas E. Wierschem, Mark D. Denavit
Summary: Structures susceptible to soft story mechanisms are particularly vulnerable to earthquakes. The strongback has been proposed as a way to prevent soft story mechanisms, but its impact on structural performance considering vertical stiffness irregularities and different arrangements of energy dissipation devices is unclear. This study investigates the effects of strongback on a small-scale four-story elastic structure with varying stiffness irregularities and damper arrangements. The results show that the strongback significantly reduces maximum story drift and makes the structural performance insensitive to damper position and distribution.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Tran-Van Han, Jeong MoonSook, YongNam Kim, Dongkyu Lee, Nguyen-Vu Luat, Kihak Lee
Summary: This paper presents a new approach for steel modular structures, incorporating the S-CN connector and rectangular hollow section (RHS) steel members. The mechanical behavior of S-CN connectors and their application in beam-column connections under compressive loading are studied numerically and validated experimentally.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Qiong Liu, Shengbo Cheng, Chang Sun, Kailun Chen, Wengui Li, Vivian W. Y. Tam
Summary: This paper presents an approach to enhance the path-following capability of concrete printing by integrating steel cables into the printed mortar strips, and validates the feasibility and effectiveness of this approach through experiments.
AUTOMATION IN CONSTRUCTION
(2024)
Article
Engineering, Civil
Mohammad Hassan Kargozarfard, Hamid M. Sedighi, Amin Yaghootian, Ali Valipour
Summary: This study introduces a modified plane wave expansion method for analyzing the out-of-plane wave propagation in a two-dimensional periodic metasurface. It explores systems with space-time-variant properties and resolves the limitations of other methods. The secondary objective of the study is to achieve complete control over wave propagation by manipulating the location of the bandgap.
THIN-WALLED STRUCTURES
(2024)
Article
Engineering, Civil
Yuda Hu, Qi Zhou, Tao Yang
Summary: The magneto-thermo-elastic coupled free vibration of functionally graded materials cylindrical shell is investigated in this study. The vibration equation in multi-physical field is established and solved using the Hamilton principle and the multi-scale method. The numerical results show that the natural frequency is influenced by various factors such as volume fraction index, initial amplitude, temperature, and magnetic induction intensity.
THIN-WALLED STRUCTURES
(2024)
Article
Construction & Building Technology
Jin Wang, Zhigao Zeng, Pradip Kumar Sharma, Osama Alfarraj, Amr Tolba, Jianming Zhang, Lei Wang
Summary: This study presents a dual-path network for pavement crack segmentation, combining Convolutional Neural Network (CNN) and transformer. A lightweight CNN encoder is used for local feature extraction, while a novel transformer encoder integrates high-low frequency attention mechanism and efficient feedforward network for global feature extraction. Additionally, a complementary fusion module is introduced to aggregate intermediate features extracted from both encoders. Evaluation on three datasets confirms the superior performance of the proposed network.
AUTOMATION IN CONSTRUCTION
(2024)
Article
Engineering, Civil
Y. Jiang, W. Zhang, Y. F. Zhang
Summary: This study investigates the linear and nonlinear vibration responses of a functionally graded graphene-reinforced laminated composite cantilever rectangular plate under transverse and parametric excitations in a thermal environment. The material properties are calculated using the Halpin-Tsai model, and the dynamic model is obtained using various theories and methods. Natural frequencies, mode shapes, and vibration characteristics are analyzed, and comparisons with a finite element method are made to validate the accuracy of the model. The study also explores nonlinear and chaotic vibrations using bifurcation diagrams and Lyapunov exponents.
THIN-WALLED STRUCTURES
(2024)
Article
Construction & Building Technology
Shuying Wang, Zihao Zhou, Xiangcou Zheng, Jiazheng Zhong, Tengyue Zheng, Changhao Qi
Summary: A real-time assessment and monitoring approach based on laser scanning technology and point cloud data analysis was proposed to address the hysteresis in assessing the workability of conditioned soils and the inefficiency in estimating the soil volume flow rate in tunnelling practice. The approach was successfully applied in identifying the workability of conditioned soil and its discharge rate in the EPB shield tunnelling project.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2024)
Article
Construction & Building Technology
Jingzhe Li, Qihan Shen, Jingfeng Wang, Fengqin Wang, Guoqiang Li
Summary: This study investigates the effectiveness of externally bonding carbon-FRP for strengthening concrete-filled steel tube short columns with void defects. It proposes strength prediction formulas and provides insights into the strengthening mechanisms.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Peigen Li, Bin Zhou, Chuan Wang, Guizhang Hu, Yong Yan, Rongxin Guo, Haiting Xia
Summary: This paper introduces a method for detecting pavement defects using convolutional neural networks. The method acquires grey and depth image data and preprocesses them. Two network structures, classic U-shaped and double-headed structures, are developed to accommodate the characteristics of the image data. Attention modules are integrated to enhance defect detection accuracy. The proposed method achieves significant improvement in detection accuracy and proves effective in focusing on pavement defect areas.
AUTOMATION IN CONSTRUCTION
(2024)
Article
Construction & Building Technology
Quy Lan Bao, Si Van-Tien Tran, Jaehun Yang, Akeem Pedro, Hai Chien Pham, Chansik Park
Summary: This paper proposes a token incentive mechanism based on blockchain technology for VR-based safety training, aiming to motivate employees to participate in safety training and improve their safety awareness. Interactive system trials show that the proposed framework can effectively motivate employees to engage in safety training and enhance their safety awareness and knowledge before performing tasks in construction sites.
AUTOMATION IN CONSTRUCTION
(2024)
Article
Engineering, Civil
Yizhe Chen, Wenfeng Xiang, Qingsong Zhang, Hui Wang, Lin Hua
Summary: This study investigates the surface modification of a nickel plate to improve the bonding strength with carbon fiber-reinforced plastics (CFRP). The results show that different surface modification methods, including sandblasting, coupling agent treatment, and compound coupling agent treatment, significantly enhance the bonding strength of CFRP/Ni joints. The research provides insights into improving the connection between nickel and CFRP, as well as other heterogeneous materials.
THIN-WALLED STRUCTURES
(2024)
Article
Construction & Building Technology
Honghu Chu, Lu Deng, Huaqing Yuan, Lizhi Long, Jingjing Guo
Summary: The study proposes a method called Cascade CATransUNet for high-resolution crack image segmentation. This method combines the coordinate attention mechanism and self-cascaded design to accurately segment cracks. Through a customized feature extraction architecture and an optimized boundary loss function, the proposed method achieves impressive segmentation performance on HR images and demonstrates its practicality in UAV crack detection tasks.
AUTOMATION IN CONSTRUCTION
(2024)
