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An interactive cross‐multi‐feature fusion approach for salient object detection in crack segmentation Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-02-11 Jian Liu, Pei Niu, Lei Kou, Yalin Zhang, Honglei Chang, Feng Guo
Salient object detection (SOD) is a crucial preprocessing technique in visual computing, which identifies the salient regions in an image by simulating the human visual perception system. It achieves remarkable results in tasks such as image quality assessment, editing, and object recognition. However, due to the particularity of pavement crack detection in terms of scale and feature requirements,
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Effects of multi-sized glass fiber-reinforced polymer waste on hydration and mechanical properties of cement-based materials J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08 Zhizong Tian, Qianqian Wang, Shuguang Hou, Xiaodong Shen
Utilization of recycled glass fiber reinforced polymers (GFRP) is challenging due to their non-degradability and complex composition. This work explored an application route to produce supplementary cementitious material (SCM) and fine aggregate (FA) with mechanical processed GFRP wastes. A novel GFRP-Sand composite fine aggregate (GSCA) was developed with a combination progress of multi-particle size
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Improved mechanical and thermal properties of sustainable ultra-high performance geopolymer concrete with cellulose nanofibres J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08 Yuekai Xie, Chenman Wang, Yingying Guo, Hanwen Cui, Jianfeng Xue
Although the application of the cellulose nanofibre (CNF) on the mechanical performance of conventional ultra-high performance concrete (UHPC) and geopolymer materials have been extensively studied, the effects of CNF on the mechanical and thermal behaviour of ultra-high performance geopolymer concrete (UHPGC) have not been well understood. This paper presents a laboratory study on the mechanical properties
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Mechanical and environmental properties of limestone calcined coal gangue based cementitious materials J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08 Junfei Zhang, Xiaoli Huang, Ling Wang, Moncef L. Nehdi, Gulbostan Tursun, Lei Zhang
The cement industry is one of the major sources of global carbon dioxide (CO?) emissions, and sustainable solutions are urgently needed to reduce its environmental impact. This study focuses on the synergistic effects of thermally activated coal gangue powder (ACGP) and limestone powder (LSP) in enhancing the mechanical properties and microstructure of composite cementitious materials. Experimental
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Compaction test of rolled rockfill material using multimodal Rayleigh wave dispersion inversion Autom. Constr. (IF 9.6) Pub Date : 2025-02-07 Yao Wang, Hai Liu, Xu Meng, Guiquan Yuan, Huiguo Wang, Ruige Shi, Mengxiong Tang, Billie F. Spencer
This paper investigated the potential of Rayleigh wave multimodal dispersion inversion to advance automatic construction through real-time, in-situ measurement of rockfill compaction. An acquisition system and inversion method were developed to automate the process of obtaining compaction depth profiles and implemented during a dynamic rolling test. A rockfill layer under 2?m was tested, with Rayleigh
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Microcrack investigations of 3D printing concrete using multiple transformer networks Autom. Constr. (IF 9.6) Pub Date : 2025-02-07 Hongyu Zhao, Xiangyu Wang, Zhaohui Chen, Xianda Liu, Yufei Wang, Jun Wang, Junbo Sun
Extrusion-filament and no-framework craft significantly influence microcracks in 3D printing concrete (3DPC). A detailed analysis of these microcracks is essential to improve overall performance of material. However, fast and automated methods for capturing and measuring representative microcrack information in 3DPC are currently lacking. This paper presents a transformer based method for automatic
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Full-scale experimental study on the natural gas explosion mechanism in utility tunnels Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-02-07 Yonghong Gao, Yapeng Duan, Hao Wu, Kai Xin, Chaoyuan Huang, Liqiang Zhou, Dongyang Li, Zicong Wang
Utility tunnels are important underground spaces for the centralised storage of municipal pipelines, and their safe and efficient operation is related to city stability. As important and dangerous municipal pipelines, natural gas pipelines pose great risks to the safe operation of utility tunnels. To reveal the mechanism and damage of natural gas explosions in utility tunnels and reduce the harm of
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Transformer-based deep learning model and video dataset for installation action recognition in offsite projects Autom. Constr. (IF 9.6) Pub Date : 2025-02-06 Junyoung Jang, Eunbeen Jeong, Tae Wan Kim
This paper developed and evaluated the Precast Concrete Installation Dataset (PCI-Dataset), a large-scale video dataset for automatically recognizing precast concrete (PC) installation activities. The dataset comprises 12,791 video clips (5?s each, 1080?×?1080 resolution, 30fps) from actual PC construction sites, including 12 balanced activity classes combining three component types and four work stages
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Change detection network for construction housekeeping using feature fusion and large vision models Autom. Constr. (IF 9.6) Pub Date : 2025-02-06 Kailai Sun, Zherui Shao, Yang Miang Goh, Jing Tian, Vincent J.L. Gan
Although poor housekeeping leads to construction accidents, there is limited technological research on it. Existing methods for detecting poor housekeeping face many challenges, including limited explanations, lack of locating of poor housekeeping and annotated datasets. To address these challenges, this paper proposes the Housekeeping Change Detection Network (HCDN), integrating a feature fusion module
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Digital twin-based fatigue life assessment of orthotropic steel bridge decks using inspection robot and deep learning Autom. Constr. (IF 9.6) Pub Date : 2025-02-06 Fei Hu, Hongye Gou, Haozhe Yang, Yi-Qing Ni, You-Wu Wang, Yi Bao
Fatigue cracks are a major issue affecting the lifespan and operation and maintenance (O&M) costs of bridges with orthotropic steel decks (OSDs), while current practices for detecting fatigue cracks often rely on manual inspection with time inefficiency. This paper presents a digital twin framework that employs robots equipped with nondestructive testing devices for data collection and deep learning
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Corrigendum to “A methodology for sky-space-ground integrated remote sensing monitoring: A digital twin framework for multi-source Data-BIM integration in residential quality monitoring” [J. Build. Eng. 102 (2025) 11976] J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06 Ming Guo, Xiangling Wu, Huihui Qi, Ying Zhang, Jiangjihong Chen, Yaxuan Wei, Xiaolan Zhang, Xiaoke Shang
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Effect of rubber granule size range and morphology on the compressive strength of rubber mortar J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06 Ze Li, Hao Jin, Boxu Sun
Rubber mortar is increasingly utilized in transportation, construction, and repair projects, where compressive strength serves as a critical performance indicator. The size range and morphology of rubber granules significantly influence the compressive strength of rubber mortar. This paper employs a close-up photogrammetry technique to capture scanned images of waste rubber granules and to measure
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Development and properties of lightweight concrete based on core-shell cold-bonded lightweight aggregate using epoxy resin as interfacial enhancer J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06 Zhenyu Huang, Yu Zhou, Lijie Chen
Due to the escalating shortage of construction materials and natural aggregate production, the present study aims to produce lightweight concrete (LWC) utilizing a novel artificial core-shell cold-bonded lightweight aggregate (CCLA). The newly developed CCLAs employ an expanded polystyrene (EPS) waste core encapsulated by a cementitious shell, leveraging epoxy resin as interfacial enhancer for reducing
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A review of the repair measures for reinforced concrete affected by chloride ion corrosion J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06 Penglong Zhao, Zheng Si, Lingzhi Huang, Yanlan He, Xiaorui Liu, Yulong Zhang
Chloride ion corrosion significantly impacts concrete structures and will lead to the loss of structural load-bearing capacity and service life. This article starts with the corrosion mechanism of chloride on reinforced concrete and reviews and researches the repair measures of reinforced concrete affected by chloride ion corrosion. Based on the mechanism of action and operating characteristics, this
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Energy consumption prediction for office buildings: Performance evaluation and application of ensemble machine learning techniques J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06 Chao Ma, Song Pan, Tong Cui, Yiqiao Liu, Ying Cui, Haoyu Wang, Taocheng Wan
Accurate forecasting and evaluation of building energy consumption are paramount for enhancing energy efficiency, reducing operational costs, and mitigating environmental impacts. Effective energy management relies on precise predictions to inform decision-making and optimize resource allocation. Although promising predictive capabilities have been demonstrated by ensemble models in this domain, their
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Seismic fragility assessment of utility tunnel and internal pipeline system Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-02-06 Jinqiang Li, Zilan Zhong, Kaiming Bi, Hong Hao
Probability-based seismic fragility analysis provides a quantitative evaluation of the seismic performance exhibited by structures. This study introduces a framework to perform seismic fragility analysis of utility tunnel and internal pipeline system considering wave passage effect of the ground motion spatial variation. The numerical model of a double-beam system resting on a nonlinear foundation
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Influence of bond defects on the pullout response of grouted rockbolts: Analytical study and experimental validation Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-02-06 Yan-Jie Wang, Hong-Bo Liu, Zhi-Min Wu, Yong-Qin Liang, Jia-Qi Yang, Meng-Di Jia
Rockbolts have been proven to be an effective and efficient technique to strengthen and retrofit rock masses in civil engineering. The stress transfer mechanism at the bolt-grout interface has been recognized as one of the key factors affecting the reinforcement effectiveness. In practice, bond defects are commonly observed at the interface owing to poor grouting or environmental deterioration during
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Bidirectional denoising method based on Fast Fourier transform analysis for TBM field penetration data Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-02-06 Wenkun Yang, Zuyu Chen, Haitao Zhao, Jianchun Li, Shuo Chen, Chong Shi
The dynamic interaction of rock and tunnel boring machine (TBM) in the penetration process makes a large amount of high-frequency noise in field penetration data. This noise prevents related analysis in rock-cutting processes, TBM performance prediction, and geological condition recognition. Although some endeavors provide empirical denoising threshold values, formulas, and optimization methods, fewer
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Inherent risks identification in a contract document through automated rule generation Autom. Constr. (IF 9.6) Pub Date : 2025-02-05 Junho Kim, Baekgyu Kwon, JeeHee Lee, Duhwan Mun
Due to the limited time available during the bidding process, construction companies may fail to identify risky terms in the contract document before submission. This paper proposes a method that uses natural language processing (NLP) models, such as dependency parser and bidirectional encoder representations from transformers (BERT), to disassemble and simplify sentences in a contract document and
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Releasing the power of graph for building information discovery Autom. Constr. (IF 9.6) Pub Date : 2025-02-05 Junxiang Zhu, Nicholas Nisbet, Mengtian Yin, Ran Wei, Ioannis Brilakis
Graph is considered a promising way to managing building information. A new graph-based representation of Industry Foundation Classes (IFC) data, known as IFC-Graph, has recently been developed. However, investigation into IFC-Graph is insufficient, especially for information query. This paper aims to explore the query of graph-based building information and develop a graph query tool for IFC-Graph
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3D bridge segmentation using semi-supervised domain adaptation Autom. Constr. (IF 9.6) Pub Date : 2025-02-05 Maximilian Kellner, Timothy K?nig, Jan-Iwo J?kel, Katharina Klemt-Albert, Alexander Reiterer
Understanding the scene is crucial for automated bridge inspection. Traditionally, bridges are measured using 3D sensors that produce large point clouds. Manually interpreting the captured data is time-consuming and error-prone. This paper proposes an unsupervised and semi-supervised domain adaptation approach for 3D bridge segmentation using labeled synthetically generated data and no or limited real-world
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Automated corrosion surface quantification in steel transmission towers using UAV photogrammetry and deep convolutional neural networks Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-02-05 Pierclaudio Savino, Fabio Graglia, Gabriele Scozza, Vincenzo Di Pietra
Corrosion in steel transmission towers poses a challenge to structural integrity and safety, requiring efficient detection methods. Traditional visual inspections are unsustainable due to the complexity and volume of structures. Their manual, qualitative, and subjective nature often leads to inconsistencies in maintenance planning. This study proposes a deep learning‐based approach for semantic segmentation
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Issue Information Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-02-05
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Progressive collapse resistance of planar prestressed concrete frame with infill walls under corner column failure scenario J. Build. Eng. (IF 6.7) Pub Date : 2025-02-05 Tao Qu, Bin Zeng, Chang Wu, Linjie Huang, Jing Wu, Dong Chang
Infill wall is an important component of the structure. Prestressing is frequently employed in concrete structures to mitigate cracking and deformation. Frames containing both are referred to as prestressed concrete with infill walls (IW-PC) frames, which are employed extensively in civil engineering. Nevertheless, the coupling effect of prestressed tendons and infill walls on the capacity to resist
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Mechanical properties and pore structure characterization of crumb rubber concrete using equal size replacement method J. Build. Eng. (IF 6.7) Pub Date : 2025-02-05 Wenmei Zhou, Chen Lu, Zhiwei Yu, Jinxu Mo
Optimizing the method of replacing natural river sand with crumb rubber (CR) can help mitigate strength loss in crumb rubber concrete (CRC). However, the effect of replacement ratio and water to binder ratio (W/B) on CRC microstructure and strength after adopting the new replacement method has not been reported. This study investigates the effects of the W/B and the CR substitution rate on the apparent
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Replicating the sequential excavation method in tunnel model tests Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-02-05 Xuchao Du, Yao Li, Xing Dong, Zhanglong Guo, Houxian Chen
To investigate soil deformation and stress distribution during tunnel excavation, a series of model tests were conducted at varying buried depths. These tests replicated the three-bench excavation method employed in the Luochuan Tunnel, utilizing prefabricated initial support segments connected by 3D-printed sliding connectors to achieve rapid sequential excavations and support installations. The results
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Machine learning method for As-Is tunnel information model reconstruction Autom. Constr. (IF 9.6) Pub Date : 2025-02-04 Nicola Rimella, Lorenzo Rimella, Anna Osello
The maintenance of aging infrastructure requires advanced tools for efficient inspection and planning. This paper presents a methodology for segmenting and classifying point clouds of road tunnels to streamline maintenance operations. Processing large datasets, such as those generated by laser surveys, poses significant challenges without appropriate IT solutions. Data from four Italian tunnels were
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Intelligent co-design of shear wall and beam layouts using a graph neural network Autom. Constr. (IF 9.6) Pub Date : 2025-02-04 Jikang Xia, Wenjie Liao, Bo Han, Shulu Zhang, Xinzheng Lu
Generative artificial intelligence-driven design of shear wall structures is crucial for the intelligent design of buildings, but current methods arrange shear walls and then beams successively, overlooking their interdependence. This paper constructed a graph representation of the coupled potential positions for shear walls and beams and proposed a co-design method driven by a graph neural network
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The expressway network design problem for multiple urban subregions based on the macroscopic fundamental diagram Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-02-04 Yunran Di, Weihua Zhang, Haotian Shi, Heng Ding, Jinbiao Huo, Bin Ran
With the advancement of urbanization, cities are constructing expressways to meet complex travel demands. However, traditional link‐based road network design methods face challenges in addressing large‐scale expressway network design problems. This study proposes an expressway network design method tailored for multi‐subregion road networks. The method employs the macroscopic fundamental diagram to
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Recycled filtered contaminants from liquid-fed pyrolysis as novel building composite material J. Build. Eng. (IF 6.7) Pub Date : 2025-02-04 Alessia Romani, Daniel Kulas, Joseph Curro, David R. Shonnard, Joshua M. Pearce
Liquid-fed pyrolysis allows the conversion of contaminated postconsumer plastic waste into valuable resources, removing contaminants through wax dissolution and filtration. One of the main challenges is currently represented by the management of its main byproduct, the contaminant-rich retentate from the filtration process. New circular economy strategies are needed to use this waste plastic-based
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Synergistic effect of micro and nano cellulosic fillers on thermal insulation and mechanical strength properties of compressed earth bricks from phosphate mining by-products J. Build. Eng. (IF 6.7) Pub Date : 2025-02-04 Khaoula Mouih, Rachid Hakkou, Mohammed Mansori, Jaafar Ghanbaja, Yassine Taha, Hamid Kaddami
The present research explores the feasibility of reusing phosphate mining waste rocks in the production of sustainable, and eco-friendly compressed earth bricks (CEBs). The study focuses on evaluating the combined impact of incorporation of date palm fibers (DPF) and commercial cellulose nanocrystals (CNCs) on the physical, mechanical, and thermal properties of CEBs, opening up prospects for potential
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Experimental study of innovative steel beam-to-column joint under impact loading to mitigate progressive collapse J. Build. Eng. (IF 6.7) Pub Date : 2025-02-04 Damian Kukla, Aleksander Koz?owski, Bartosz Miller, Dominika Ziaja, Izabela Wójcik-Grz?ba, Sylwia Gubernat
The structural response of two steel substructures in a beam-column-beam arrangement under accidental loads was studied in the experimental impact tests. Both versions of the bolted joint, the classic flush end-plate and the innovative one were tested with the same impact energy level applied by dropping the free-falling steel-concrete package. Special measuring equipment dedicated to dynamic investigations
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A study on the mechanical properties of eco-friendly low-cost polyethylene fiber-reinforced engineered cementitious composites J. Build. Eng. (IF 6.7) Pub Date : 2025-02-04 Mingzheng Zhu, Mingzhe Zhang, Xiangrui Meng, Bing Chen, Lei Lang
For several decades, there has been a growing concern about sustainability in the construction industry. The excellent mechanical properties of engineered cementitious composite (ECC) make it an important building material that improves the durability, crack resistance and overall performance of structures. However, the high cost and environmental impact issues associated with conventional ECC limit
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Evaluating salt-freeze damage in concrete and mortar: Interfacial transition zone vulnerability and non-destructive estimation of mechanical degradation J. Build. Eng. (IF 6.7) Pub Date : 2025-02-04 Yi Wang, Xunjie Zhang, Sha Xie, Zhang Li, Jiaxu Yao
This study investigated the degradation mechanisms of concrete and mortar exposed to sodium chloride attack and freeze-thaw cycles. A comprehensive experimental program has been conducted, including mechanical testing (flexural, splitting, and compressive strength), chloride penetration analysis, and mercury intrusion porosimetry (MIP) tests to examine pore structure changes. The results demonstrated
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Hydrothermal synthesis of C–S–H/cellulose nanocomposites and its enhancement effect on the mechanical performance of cement-based materials J. Build. Eng. (IF 6.7) Pub Date : 2025-02-04 Hong Zhou, Shuzhen Zheng, Huina Li, Qianping Ran, Jianfeng Ma
Calcium silicate hydrates (C–S–H) is the primary product of cement hydration, and its structure and properties substantially influence the mechanical performance of cement-based materials. However, in practical applications, pure C–S–H has some shortcomings, such as susceptibility to microcracking and high porosity, which can reduce the durability and overall mechanical performance. To solve these
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Seismic damage recognition of structural and non-structural components based on convolutional neural networks J. Build. Eng. (IF 6.7) Pub Date : 2025-02-04 Weiping Wen, Tingfei Xu, Jie Hu, Duofa Ji, Yanan Yue, Changhai Zhai
Image-based rapid recognition of seismic damage of structural and non-structural components is significant for the emergency response and recovery decision making in the post-earthquake environment. A novel seismic damage rapid recognition method of structural and non-structural components based on convolutional neural networks (CNNs) is proposed in this study. Firstly, a seismic damage image dataset
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Numerical and experimental investigation into dynamic fracture and energy dissipation of red sandstone under multi-axial confining pressure Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-02-04 Jianhua Yang, Tao Yu, Zhiwei Ye, Yi Zou, Chuangbing Zhou
Investigating the dynamic behavior of rock under confining pressure is instrumental in enhancing the understanding of rock fracture characteristics and energy efficiency of deep rock blasting. Related investigations have been conducted extensively by using modified Split Hopkinson Pressure Bar (SHPB) apparatus. However, in these experimental tests, the real-time observation of the dynamic fracture
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Smart virtual sensing for deep excavations using real-time ensemble graph neural networks Autom. Constr. (IF 9.6) Pub Date : 2025-02-03 Chen Yang, Chen Wang, Feng Zhao, Bin Wu, Jian-sheng Fan, Yu Zhang
As urban development in densely populated city centers increasingly expands underground, monitoring surface settlement during deep excavations has become a critical safety measure. Traditional methods, often relying on sparse monitoring points and interpolation techniques, struggle to capture the complex settlement behavior, especially given the high nonlinearity of foundation pits. This paper introduces
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Semantics-based connectivity graph for indoor pathfinding powered by IFC-Graph Autom. Constr. (IF 9.6) Pub Date : 2025-02-03 Junxiang Zhu, Mun On Wong, Nicholas Nisbet, Jinying Xu, Tom Kelly, Sisi Zlatanova, Ioannis Brilakis
Pathfinding is important for many indoor location-based applications such as facility management and indoor navigation. Conventional approaches for constructing indoor networks for pathfinding are mostly based on geometry processing, which can be computing-intensive and time-consuming, especially for buildings with complex irregular shapes. In addition, the generated geometric networks often lack semantics
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Influence of curing regimes and duration on the early strength development of fibers based reactive powder concretes J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Subhash C. Yaragal, Harshkumar V. Annigeri, Nithish Krishna K M, Chandrashekar Allikatti, Gopika Dinesh, M.H. Prashanth
Curing regimes play a crucial role in enhancing the early strength and overall performance of reactive powder concrete (RPC). This study focuses on the influence of different curing regimes on the early strength development of various fibers based RPC mixes. RPC mixes were produced adopting four-stage mixing method. The hot water curing (HWC) and steam curing (SC) regimes achieved a strength of 84?MPa
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An overview of practical challenges and current advances related to the use of calcium aluminate cement in various concrete applications J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Waqas Latif Baloch, Hocine Siad, Mohamed Lachemi, Mustafa Sahmaran
Calcium aluminate cement (CAC) offers a promising alternative to Portland cement, particularly in applications requiring rapid setting, high early strength, and lower CO2 emissions. However, its broader adoption has been hindered by challenges related to the conversion process and the formation of unstable hydrates, which impact its long-term performance and durability. This review focuses on addressing
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Cyclic load behavior of PC and CIP interior beam-column connections in moment resisting frames J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Min-Su Jo, Hyeong-Gook Kim, Dong-Hwan Kim, Su-A Lim, Byoung-Chan Kim, Jung-Yoon Lee, Kil-Hee Kim
The use of precast concrete (PC) in construction has many benefits, including improved product quality, shorter construction periods, and lower construction costs. However, to design middle-to high-rise PC structures, seismic safety must be ensured. In particular, the structural behavior of beam-column joints, which are typical moment-resisting frames, is determined by shear and bond mechanisms under
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An experimental study of respiratory particle dispersion in an operating room under positive and negative pressurization J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Reza Daneshazarian, M. Rafsan Nahian, Jeffrey Siegel
Hospital operating rooms (ORs) are typically maintained at positive pressure, which can increase the risk of disease transmission to healthcare workers and to spaces outside of the OR when an infected patient is present. This study investigates the influence of operating room pressurization (positive and negative) and dynamic healthcare worker (HCW) activity on respiratory particle dispersion, addressing
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Experimental study on the eccentric compressive behavior of steel reinforced concrete composite columns with stay-in-place ECC jacket J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Bing-Lin Lai, Xiang Zhou, Ming-Yang Zhang, Xiao-Feng Zheng, Sheng-Gang Fan
Steel Reinforced Concrete (SRC) column with stay-in-place ECC jacket is a novel type of composite columns synergizing the merits of advanced construction materials and precast technologies. This study experimentally investigates the eccentric compressive behavior of ECC-SRC columns. The optimal fiber content and mix proportion desirable for jacket were determined prior to the specimen fabrication.
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A unified simplified numerical model for large-scale regional seismic simulation of building structures J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Haifeng Bu, Huanjun Jiang, Yasushi Sanada
To compute seismic responses of a large number of building structures quickly in an area, a unified simplified nonlinear multi-degree-of-freedom finite element model is proposed in this study for reinforced concrete (RC) structures, including frame structures, frame-shear wall structures, and shear wall structures. Corresponding parameter determination method of the simplified model is also provided
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Silk fibroin as a multifunctional admixture: Exploring the synergistic effects with nanomaterials in cementitious composites J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Wentao Yang, Xuanzhe Zhang, Xianfeng Wang, Zhipeng Fu, Guangming Zhu, Feng Xing
The synthesis of silk fibroin (SF) composite for eco-friendly concrete additives addresses the growing need for sustainable building materials. This study investigated the role of SF in modifying the hydration and mechanical properties of silicate cement, and the potential of SF as a multifunctional admixture in cementitious composites. The incorporation of SF into silicate cement modifies key properties
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Effect of fiber content on fracture behavior of UHPFRCC by acoustic emission technique J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Chen Chen, Xudong Chen
The paper aims to study strain-harden and strain-soften fracture behavior of ultra-high performance fiber reinforced cementitious composites (UHPFRCC) with different fiber content based on acoustic emission (AE) technology. Three-point bending fracture test was performed on UHPFRC with 0?%, 1?%, and 2?% fiber content, and the fracture mechanical properties of UHPFRCC were analyzed. Meanwhile, the AE
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Enhancing temperature resistance of calcium aluminate cement through carbonated steel slag J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Zhaohou Chen, Jiangshui Cui, Yang Liu, Xiaohuan Jing, Bingyang He, Daqiang Cang, Lingling Zhang
The conversion from metastable phase to stable phase in calcium aluminate cement (CAC) caused by temperature increase can lead to an increase in porosity and a decrease in compressive strength. This study investigated the effects of carbonated steel slag (CSS) on the hydration, microstructure, and resistance to temperature fluctuations of CAC at temperatures ranging from 20?°C to 70?°C. The results
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Integration of BIPV technology with modular prefabricated building - A review J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Yuxin Bao, Changying Xiang
The sustainable transformation of the building industry is crucial for achieving regional and global energy goals. Among various emerging low-carbon technologies for the reduction of carbon emissions in buildings' life cycles, modular prefabricated buildings demonstrate significant energy-saving potential during the design and construction phases, while Building-integrated photovoltaics (BIPV) technology
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Stability of double-skin truss-reinforced composite shear wall under axial compression J. Build. Eng. (IF 6.7) Pub Date : 2025-02-03 Ying Qin, Yang Liu, Guolin Yang, Guangen Zhou, Xiongliang Zhou, Arumi Izaazwazini Ramli
Traditional reinforced concrete shear walls have the disadvantages of significant weight, limited ductility, and prolonged construction cycles. Double-skin composite shear walls, which consist of two steel plates and the infilled concrete, effectively address these issues. However, these walls feature thinner cross-sections than traditional concrete shear walls and thus, the stability of the walls
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Effect of salt on thermal properties of natural stone curtain wall materials: A case study of red sandstone J. Build. Eng. (IF 6.7) Pub Date : 2025-02-02 Yu Zhang, Qinglin Meng, Chuanrui Li, Peng Ren, Junsong Wang
Understanding and optimizing the hygrothermal performance of building enclosures in coastal areas require knowledge of the hygrothermal performance parameters of salt-containing porous building materials. In coastal regions, the presence of salt influences the thermophysical properties of porous materials, leading to alterations in the heat transfer capabilities and surface optical characteristics
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"Long-term performance and phase characterization of Quaternary Blended Self-Compacting Concrete incorporating IFSS aggregates: A multidisciplinary investigation" J. Build. Eng. (IF 6.7) Pub Date : 2025-02-02 Shreekanth Birgonda, R. Senthilkumar, Ramesh S.T
This study investigates the long-term performance of Quaternary Blended Self-Compacting Concrete (QBSCC) incorporating Induction Furnace Steel Slag (IFSS) as coarse and fine aggregates. The research evaluates compressive strength, chloride ion penetration resistance, drying shrinkage, natural carbonation, and accelerated corrosion in concrete, alongside comprehensive characterization through X-ray
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Effect of biochar characteristics on freeze-thaw durability of biochar-cement composites J. Build. Eng. (IF 6.7) Pub Date : 2025-02-02 Tiefeng Chen, Ziyuan Yang, Huanhuan Liu, Linshan Li, Ling Qin, Xiaojian Gao
Biochar is considered as an eco-friendly cement additive because of its carbon storage and hydration promotion potentials. However, the uncertainty of the effect of biochar on durability of cement-based materials limits its application. In particularly, there is little knowledge about the freeze-thaw degradation behavior of biochar-cement composites. In this study, the correlation between the physicochemical
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Enhanced vision-based 6-DoF pose estimation for robotic rebar tying Autom. Constr. (IF 9.6) Pub Date : 2025-02-01 Mi Liu, Jingjing Guo, Lu Deng, Songyue Wang, Huiguang Wang
Rebar tying is a labor-intensive and time-consuming task that involves repeatedly securing rebar intersections. While rebar tying robots have been developed to automate this process, most research focuses on tying point localization for horizontal ties, neglecting the 6 degrees of freedom (DoF) tying pose estimation required for reinforcement skeletons with rebar planes in various directions. This
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Robotic motion planning for autonomous in-situ construction of building structures Autom. Constr. (IF 9.6) Pub Date : 2025-02-01 Cong Zhao, Jian-Ye Chen, Tao Sun, Wei Fan, Xiao-Yan Sun, Yi Shao, Guan-Qin Guo, Hai-Long Wang
The in-situ construction of building structures with autonomous robotic systems holds great promise for addressing labor shortages and increasing people’s quality of living. Motion planning is a fundamental component in developing such systems, as it ensures that the actions of construction robots adhere to constraints and adapt to uncertainties. This review critically surveyed related studies from
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Cogeneration method for crack images and masks Autom. Constr. (IF 9.6) Pub Date : 2025-02-01 Xun Zhang, Jianming Ding, Yutao Wang, Kaiyun Wang
The scarcity of sleeper crack samples limits the effectiveness of deep learning detection methods. Traditional data augmentation produces similar images, whereas classic GANs require manual mask annotation, increasing complexity. This paper proposes MaskGAN, a model that generates crack images and corresponding masks simultaneously in a single-step generation. MaskGAN maintains background consistency
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Automated large-scale additive manufacturing of structural formwork with rapid fibre-reinforced polymer tape lamination Autom. Constr. (IF 9.6) Pub Date : 2025-02-01 Zhuo-Yang Xin, Guan-Qi Zhu, Joseph M. Gattas, Dan Luo
A fully automated additive lamination manufacturing (ALM) system was developed for producing large-scale fibre-reinforced polymer (FRP) structural formworks. Automation is achieved through the integration of a UV-curable resin matrix with glass fibre tape and a robotic arm end-effector. This paper presents details of the hardware and material development for the UV-based ALM system, as well as performance
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The effect of calcined clay reactivity on the mechanical properties and chloride diffusion resistance of alkali-activated calcined clay-GGBFS concrete J. Build. Eng. (IF 6.7) Pub Date : 2025-02-01 Samuel De Carvalho Gomes, Yu Pang, Quang Dieu Nguyen, Wengui Li, Kirk Vessalas, Arnaud Castel
The increasing demand for sustainable and durable construction materials, particularly in aggressive environments such as those exposed to chloride ingress, necessitates the exploration of alternative binders that offer enhanced performance and lower environmental impact compared to traditional Portland cement. This study investigates the chloride resistance of calcined clay/ground granulated blast