Developments in the Built Environment最新文献_第8页

Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing 基于联合无损检测的无箍筋钢筋混凝土梁破坏模式及剪切性能表征

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100673

Shengtao Li , Xudong Chen , Joan R. Casas , Yangyang Sun

{"title":"Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing","authors":"Shengtao Li , Xudong Chen , Joan R. Casas , Yangyang Sun","doi":"10.1016/j.dibe.2025.100673","DOIUrl":"10.1016/j.dibe.2025.100673","url":null,"abstract":"<div><div>The shear capacity of concrete beams without stirrups exhibits high variability, and the specific causes behind this difference in capacity remain unclear. This study conducts a combined analysis of shear failure using various advanced non-destructive testing (NDT) methods. Digital Image Correlation (DIC) observed crack propagation, Distributed Fiber Optic Sensing (DFOS) detected strain in longitudinal reinforcement, and Acoustic Emission (AE) analyzed internal damage during critical crack development. The results indicate that identical beams without stirrups exhibit two failure modes with high and low load-bearing capacities, leading to a difference in capacity exceeding 65 %. The beams exhibit significant differences in stress states during the formation of critical shear cracks, as indicated by the strain profile measured through DFOS. Combined NDT methods successfully revealed that variations in crack propagation paths and differential crack coalescence are key factors leading to differences in shear capacity. This helps to elucidate the structural state changes during the failure process of the beams without stirrups.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100673"},"PeriodicalIF":6.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure and transport properties of cement mortar made with recycled fine ceramic aggregates 再生陶瓷细骨料水泥砂浆的微观结构与输运性能

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-21 DOI: 10.1016/j.dibe.2025.100643

Le Li , Ziyi Liu , Wenfeng Liu , Zeyu Wang , Chunsheng Zhou , Qiang Zeng

{"title":"Microstructure and transport properties of cement mortar made with recycled fine ceramic aggregates","authors":"Le Li , Ziyi Liu , Wenfeng Liu , Zeyu Wang , Chunsheng Zhou , Qiang Zeng","doi":"10.1016/j.dibe.2025.100643","DOIUrl":"10.1016/j.dibe.2025.100643","url":null,"abstract":"<div><div>Effective utilization of recycled ceramics in building materials has received growing interests. This study focuses on the utilization of household ceramic wastes generated by the ceramic manufacturing industry in Jingdezhen. An experimental study on strengths (compression/bending tests), durability indexes (gas permeation/water absorption tests), and microstructure (mercury intrusion porosimetry/scanning electron microscopy techniques) of mortars using fine ceramic aggregate (CA) as a partial and total substitution of natural sand was carried out. Results indicate that (1) CA incorporation improves the compressive/flexural strengths at 20% substitution and further substitution leads to reduction in the strengths; (2) CA-modified mortars possess a higher ressistance against gas permeation and water absorption; (3) CA roughly narrows the critical pore size, and the durability indexes present linear correlations with characteristic pore parameters; (4) reasonable utilization of household ceramic wastes in concrete construction can contribute to waste management along with enhancing concrete properties.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100643"},"PeriodicalIF":6.2,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Data-model hybrid-driven and artificial intelligence-based monitoring threshold update and short-term response prediction for high-formwork support system 基于数据模型混合驱动和人工智能的高模板支撑系统监测阈值更新与短期响应预测

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-19 DOI: 10.1016/j.dibe.2025.100645

Qiang Li , Peixuan Wang , Xianzhe Li , Jun Zhang , Mingfeng Huang , Dongming Lu

{"title":"Data-model hybrid-driven and artificial intelligence-based monitoring threshold update and short-term response prediction for high-formwork support system","authors":"Qiang Li , Peixuan Wang , Xianzhe Li , Jun Zhang , Mingfeng Huang , Dongming Lu","doi":"10.1016/j.dibe.2025.100645","DOIUrl":"10.1016/j.dibe.2025.100645","url":null,"abstract":"<div><div>In recent years, the frequency of collapse accidents involving ultra-high reinforced concrete formwork support systems has increased, highlighting the need for real-time monitoring and timely early warnings during construction. At present, there are no standardized methods for determining monitoring thresholds for high-formwork support systems, and existing monitoring systems lack trend prediction capabilities, limiting their effectiveness in advance prediction and early warning of structural responses. This paper aims to propose a data-model hybrid-driven framework for determining and updating monitoring thresholds, as well as for short-term response prediction of high-formwork support systems. The proposed framework consists of three key modules. The first module is a visual monitoring system for detecting structural displacement, which collects data, issues real-time warnings, and continuously feeds information to the second module. The second module focuses on determining and updating monitoring thresholds through a data-model hybrid approach and supplies extensive training samples for the third module. The third module concentrates on short-term prediction of structural displacement response and construction load inversion using the CNN-BiLSTM-Adaboost algorithm. This algorithm predicts displacement trends in high-formwork support structures up to 1 h in advance, providing early warnings. Additionally, it quickly and accurately estimates the upper construction load, enabling precise emergency measures and reducing the impact of adverse load effects.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100645"},"PeriodicalIF":6.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-healing responses of cementitious tailings materials to changing drainage conditions 尾砂胶凝材料对排水条件变化的自愈响应

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-18 DOI: 10.1016/j.dibe.2025.100648

Weizhou Quan, Mamadou Fall

引用次数: 0

Performance study of Portland cement grouting materials enhanced with nanobubbles 纳米气泡增强硅酸盐水泥灌浆材料性能研究

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-17 DOI: 10.1016/j.dibe.2025.100647

Xinxin Zhang , Jiachen Zhu , Xiaolong Zhang , Lubo Tang , Xiaobin Chen , Haidong Wu , Jiale Yang

{"title":"Performance study of Portland cement grouting materials enhanced with nanobubbles","authors":"Xinxin Zhang , Jiachen Zhu , Xiaolong Zhang , Lubo Tang , Xiaobin Chen , Haidong Wu , Jiale Yang","doi":"10.1016/j.dibe.2025.100647","DOIUrl":"10.1016/j.dibe.2025.100647","url":null,"abstract":"<div><div>This study investigates the use of nanobubbles as an innovative additive to enhance Portland cement grouts in geotechnical engineering. Unlike conventional nanomaterials that tend to aggregate, nanobubbles are rapidly generated and remain stably dispersed due to electrostatic repulsion. Systematic experiments with varying water-cement ratios were conducted to evaluate their effects on key cement grouting performance parameters. Results indicate that nanobubbles reduce internal friction within the cement slurry by acting as lubricants between cement particles, improving flowability by 7.5 % and enhancing rheological properties. Their surface electronegativity facilitates uniform particle dispersion, thereby increasing slurry stability. Furthermore, XRD and SEM analyses reveal that nanobubbles accelerate hydration kinetics by providing abundant nucleation sites, promoting calcium hydroxide (CH) formation, and refining the microstructure. This densification leads to a 4.8 %–24.1 % increase in 28-day compressive strength. The findings demonstrate a scalable and sustainable approach for high-performance cement grouts, advancing nanotechnology applications in construction.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100647"},"PeriodicalIF":6.2,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Greenhouse gas emission of recycled concrete production for pavement construction considering carbon uptake 考虑碳吸收的路面施工再生混凝土生产的温室气体排放

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-17 DOI: 10.1016/j.dibe.2025.100646

Xianjia Huang , Yisong Ouyang , Dawei Zhang , Huayang Yu

{"title":"Greenhouse gas emission of recycled concrete production for pavement construction considering carbon uptake","authors":"Xianjia Huang , Yisong Ouyang , Dawei Zhang , Huayang Yu","doi":"10.1016/j.dibe.2025.100646","DOIUrl":"10.1016/j.dibe.2025.100646","url":null,"abstract":"<div><div>The carbonation or uptake effects are often ignored when quantifying the greenhouse gas (GHG) emissions from recycled concrete production, resulting in a neglected balance between carbon emissions and absorption. This study specifically considers these effects using the life cycle assessment (LCA) methodology to quantify GHG emissions from recycled concrete used for pavements. The cradle-to-gate LCA includes raw material extraction, transportation, production, and carbonation during mixing and curing. The findings indicate that (1) the net GHG emissions of recycled concrete are lower than those of virgin concrete, with higher recycled coarse aggregates (RCA) replacement rates leading to further emission reductions. (2) carbonation during the production phase significantly contributes to carbon capture, thus reducing the overall GHG emissions. (3) recycled concrete has lower environmental costs and requires less green area for carbon absorption than conventional concrete, highlighting the environmental and economic benefits of using recycled concrete in pavement construction.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100646"},"PeriodicalIF":6.2,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A case study on integrating data analysis and process mining in conventional tunnel construction 传统隧道施工中数据分析与工艺挖掘相结合的实例研究

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-14 DOI: 10.1016/j.dibe.2025.100640

Oleksandr Melnyk , Marco Huymajer , Christian Huemer , Lucas Rosenberger , Alexandra Mazak-Huemer

{"title":"A case study on integrating data analysis and process mining in conventional tunnel construction","authors":"Oleksandr Melnyk , Marco Huymajer , Christian Huemer , Lucas Rosenberger , Alexandra Mazak-Huemer","doi":"10.1016/j.dibe.2025.100640","DOIUrl":"10.1016/j.dibe.2025.100640","url":null,"abstract":"<div><div>Conventional tunnel construction often relies on manual methods of construction process analysis, using tools such as paper-based cycle diagrams or spreadsheets, which lack immediate updates and capabilities, limiting performance evaluation, communication, and decision-making. As a result, moving to a fully digital process incorporating business intelligence capabilities can deliver benefits by improving data-driven decision-making, operational efficiency and resource allocation. This paper presents a case study using construction documentation to evaluate the applicability of data and process analytics in conventional tunnelling. We also present a novel approach to visualising and analysing construction sequence deviations. The study demonstrates how data and process analysis can be utilised to evaluate the activity sequences, the duration of single activities, advance rates, and general project performance. By adhering to established industry standards, this research examines the practical implementation of data analysis methods in operational tunnelling environments, contributing to the development of integrated digital workflows.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100640"},"PeriodicalIF":6.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A steel element reuse ontology for building audits in circular construction 用于循环建筑审核的钢构件再利用本体论

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-01 DOI: 10.1016/j.dibe.2025.100638

Leonhard Schönfelder, Brandon S. Byers , Meliha Honic, Catherine De Wolf

{"title":"A steel element reuse ontology for building audits in circular construction","authors":"Leonhard Schönfelder, Brandon S. Byers , Meliha Honic, Catherine De Wolf","doi":"10.1016/j.dibe.2025.100638","DOIUrl":"10.1016/j.dibe.2025.100638","url":null,"abstract":"<div><div>The construction sector's transition to a circular economy necessitates the closure of material loops through reuse. However, there is little consensus regarding the information to assess the reusability of building elements. This paper determines the necessary information for evaluating steel member reusability and explores the structure of an ontology for conducting building audits. The methodology involves surveys and interviews with European experts in reuse to create the Steel Element Reuse Ontology (SERO). The results show 1) that economic, technical, and condition factors are important to define reusability, and 2) an ontology to assess the reusability should account for the condition and documentation of steel members. SERO establishes definitions and a human- and machine-readable framework for assessing the reuse potential of steel H- and I-profiles in a European context. This framework could be employed in developing digital tools aimed at streamlining inventory procedures in construction, fostering the practical implementation of circular economy principles.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"21 ","pages":"Article 100638"},"PeriodicalIF":6.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of temperature on the modal parameters of continuous rigid frame bridge 温度对连续刚构桥模态参数的影响

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-01 DOI: 10.1016/j.dibe.2025.100631

Yang Yang , Md Sulayman Hossen , Giuseppe Lacidogna , Wenming Xu , Ibna Kawsar , Junbo Sun , Shameem Hossain

{"title":"Effect of temperature on the modal parameters of continuous rigid frame bridge","authors":"Yang Yang , Md Sulayman Hossen , Giuseppe Lacidogna , Wenming Xu , Ibna Kawsar , Junbo Sun , Shameem Hossain","doi":"10.1016/j.dibe.2025.100631","DOIUrl":"10.1016/j.dibe.2025.100631","url":null,"abstract":"<div><div>The temperature effect on modal parameters such as natural frequencies, mode shapes, and damping ratios is critical for precisely determining the health of a bridge. This is the first study investigating how temperature affects the modal properties of a large continuous rigid-frame bridge. The vibration experiment data was collected and analyzed 39 times within a year's maximum and minimum temperatures. The frequency has been analyzed using the Fast Fourier transform (FFT) algorithm. Mode shape and damping ratio were analyzed using MATLAB software using the covariance-driven stochastic subspace identification method (SSI-COV) and the logarithmic decrement method. Due to the unique shape of the bridge, numerical simulations were performed using Midas Civil software to validate the results. Moreover, the correlation coefficients of frequencies and damping ratios at different temperatures have been evaluated by this observation, which will assist in identifying the large continuous rigid frame bridge's health at various temperatures.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"21 ","pages":"Article 100631"},"PeriodicalIF":6.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elicitation and verification of learning via experts (EVOLVE) for creating a theoretical framework for active shooter incidents 通过专家启发和验证学习（EVOLVE），为主动射击事件创建理论框架

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-03-01 DOI: 10.1016/j.dibe.2025.100635

Ruying Liu , Burcin Becerik-Gerber , David V. Pynadath , Deniz Marti , Gale M. Lucas

{"title":"Elicitation and verification of learning via experts (EVOLVE) for creating a theoretical framework for active shooter incidents","authors":"Ruying Liu , Burcin Becerik-Gerber , David V. Pynadath , Deniz Marti , Gale M. Lucas","doi":"10.1016/j.dibe.2025.100635","DOIUrl":"10.1016/j.dibe.2025.100635","url":null,"abstract":"<div><div>Active Shooter Incidents (ASIs) pose significant threats to public safety, especially within educational facilities. Unlike fire safety regulations, current guidelines for ASIs lack specific recommendations. Thus, this study seeks to develop a theoretical framework for ASIs by examining factors influencing civilian behaviors, categorizing response behaviors, and identifying essential needs for building safety and emergency management. Employing the elicitation and verification of learning via experts (EVOLVE) method, we engaged experts through surveys, videos, prioritization exercises, and focus groups. We identified five categories of influencing factors: individual-related, building-related, situation-related, security-related, and shooter-related factors, and six civilian responses: running following a crowd, hiding in place, running then hiding, running independently, freezing, and fighting. Effective training and familiarity with building were found to be crucial for improving decisive actions and reducing passive behaviors. Experts emphasized the need for universal disaster response strategies, standardized training for first responders, and uniform civilian training in addition to understanding how various building design features enhance safety. Developing a risk assessment system and a simulation platform to enhance emergency management were also among the recommendations.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"21 ","pages":"Article 100635"},"PeriodicalIF":6.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0