Journal of building engineering最新文献_第8页

AI-driven integration of digital twins and blockchain for smart building management systems: A multi-stage empirical study

IF 6.7 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112439

Habib Sadri

{"title":"AI-driven integration of digital twins and blockchain for smart building management systems: A multi-stage empirical study","authors":"Habib Sadri","doi":"10.1016/j.jobe.2025.112439","DOIUrl":"10.1016/j.jobe.2025.112439","url":null,"abstract":"<div><div>Building Management Systems (BMS) play a crucial role in effectively managing modern buildings. However, conventional BMS rely on fragmented automation and manual processes, limiting their adaptability, scalability and data-driven decision-making. Despite advances in the implementation of technologies such as digital twins (DTs), blockchain and artificial intelligence (AI) in BMS, their practical application remains limited. This study aims to bridge this gap by developing an AI-driven, blockchain-secured DT solution for smart building management. A multi-stage empirical methodology was adopted, combining an extensive literature review, expert consultations and iterative prototype development. The research findings indicate that according to industry experts, real-time data processing, enhanced security, predictive analytics, user-friendly design, seamless integration with other systems, and sustainability considerations are among the most critical features for effective BMS, which are reflected in the proposed framework. A functional platform prototype was designed, developed and evaluated through real-world testing in an administrative building, demonstrating improved automation, responsiveness and an intuitive user experience. This study contributes to both academia and industry by providing an integrated, scalable and empirically validated model for next-generation BMS. Going beyond theoretical exploration, it presents a practical roadmap for implementing new technologies in building operations, supporting effective integration, improved resilience and increased sustainability. The findings provide insights into both the integration of AI, blockchain and DT into BMS and their readiness for large-scale adoption, highlighting their revolutionary capabilities in redefining smart systems for building operations management.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"105 ","pages":"Article 112439"},"PeriodicalIF":6.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698052","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

Multi-criteria ranking of LEED healthcare criteria for designing green hospitals

IF 6.7 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112443

Sehnaz Cenani, Gizem Can

{"title":"Multi-criteria ranking of LEED healthcare criteria for designing green hospitals","authors":"Sehnaz Cenani, Gizem Can","doi":"10.1016/j.jobe.2025.112443","DOIUrl":"10.1016/j.jobe.2025.112443","url":null,"abstract":"<div><div>The Ministry of Health made LEED certification mandatory for all hospitals with a capacity of 200 beds and above in 2012 in Türkiye. This study addresses the research gap in prioritizing LEED healthcare criteria for green hospitals in Türkiye, a topic that has received limited attention. The aim of this study is to develop a hierarchical framework using the Analytical Hierarchy Process (AHP) to rank these criteria while factoring in essential project management principles such as cost, quality, and time. The research problem was modeled using SuperDecisions software, and 10 experts provided insights through 28 pairwise comparisons, with results indicating that the “Materials and Resources” criterion is the most important, while “Innovation” is the least important. This research offers practical strategies for prioritizing LEED healthcare criteria, improving decision-making in the design and certification of green hospitals. The AHP methodology enhances transparency in the ranking process, providing valuable insights for architects, building engineers, healthcare facility managers, and policymakers. The study's originality lies in integrating project management principles with the AHP framework to address the unique challenges of designing sustainable healthcare facilities in Türkiye. By focusing on the priorities of various decision-makers, this research contributes to the efficient implementation of LEED certification, guiding the transition of existing hospitals. The study is expected to serve as a roadmap for Türkiye and other countries in obtaining LEED certification. Future research could explore the application of this framework in different settings or regions to validate its effectiveness and adaptability.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"105 ","pages":"Article 112443"},"PeriodicalIF":6.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698053","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

Exploring new pre-curing methods for carbonation curing of cement-based materials

IF 6.7 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112434

Pengfei Liu , Chuanbei Liu , Kaijing Tang , Sumin Guan , Xu Luo , Lihua Zhang , Laibao Liu

{"title":"Exploring new pre-curing methods for carbonation curing of cement-based materials","authors":"Pengfei Liu , Chuanbei Liu , Kaijing Tang , Sumin Guan , Xu Luo , Lihua Zhang , Laibao Liu","doi":"10.1016/j.jobe.2025.112434","DOIUrl":"10.1016/j.jobe.2025.112434","url":null,"abstract":"<div><div>Pre-curing is a crucial step in the carbonation curing of cement-based materials. It significantly influences the subsequent carbonation and hydration processes, carbon sequestration efficiency, and strength development. This study investigates the effects of various pre-curing methods (fan drying, oven drying, microwave drying) and curing regimes on carbonation performance in cement-based materials using a custom monitoring system that tracks carbonation degree, temperature, and humidity in real time. Experimental results demonstrate that oven and microwave pre-curing accelerate moisture loss while enhancing pre-hydration. Reduced pre-hydration time (24 h) and lower residual water-cement ratio (0.4) optimized CO<sub>2</sub> diffusion and calcium carbonate crystallization, achieving 29.80 % carbonation degree. Although carbonation products limited subsequent hydration, compressive strengths at 3, 7, and 28 days increased by 2.8 %, 5.1 %, and 7.1 % compared to standard-cured samples. The findings provide insights for optimizing carbonation curing processes through controlled pre-curing conditions.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"105 ","pages":"Article 112434"},"PeriodicalIF":6.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715830","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

Solar-powered smart monitoring system for occupancy and energy use in lecture rooms

IF 6.4 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112409

Nasiru Yahaya Ahmed, Hazlee Azil Illias, Hazlie Mokhlis, Nurulafiqah Nadzirah Mansor, Mohd Yazed Ahmad

{"title":"Solar-powered smart monitoring system for occupancy and energy use in lecture rooms","authors":"Nasiru Yahaya Ahmed, Hazlee Azil Illias, Hazlie Mokhlis, Nurulafiqah Nadzirah Mansor, Mohd Yazed Ahmad","doi":"10.1016/j.jobe.2025.112409","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.112409","url":null,"abstract":"Electricity consumption in residential and public buildings has become a concern recently. Ambient temperature and humidity levels play a crucial role in enhancing the efficacy of tasks performed within an occupancy area. Due to the discomfort caused by hot weather conditions in tropical regions, the use of cooling systems is common practice to help normalize the environmental temperature for the comfort of the occupants. However, inefficient air conditioner usage, especially when rooms are unoccupied, leads to excessive energy consumption and high electricity costs. To address this issue, this paper proposes an Arduino-based solar-powered smart monitoring system for occupancy and energy use in lecture rooms. The system consists of two solar-powered Arduino boards (Wemos D1 and AI-Thinker camera). The Wemos D1 integrates a temperature sensor and a PIR motion sensor to monitor environmental conditions, while the AI-Thinker camera provides image-based occupancy verification via Telegram. Real-time data transmission is enabled through Blynk and Telegram applications, allowing remote monitoring of room conditions. Results show that the system achieved 41.12 % weekly energy savings, effectively reducing carbon footprints and operational costs. The prototype conforms with SDGs climate action and clean energy initiatives, demonstrating its potential for sustainable energy management in lecture rooms.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"28 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678181","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

Rheological properties of high-performance concrete reinforced with microfibers and their effects on 3D printing process

IF 6.7 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112406

Tuani Zat , Sílvio Lisbôa Schuster , Ester Schmitt Duarte , Natália De Freitas Daudt , Robinson Carlos Dudley Cruz , Erich D. Rodríguez

{"title":"Rheological properties of high-performance concrete reinforced with microfibers and their effects on 3D printing process","authors":"Tuani Zat , Sílvio Lisbôa Schuster , Ester Schmitt Duarte , Natália De Freitas Daudt , Robinson Carlos Dudley Cruz , Erich D. Rodríguez","doi":"10.1016/j.jobe.2025.112406","DOIUrl":"10.1016/j.jobe.2025.112406","url":null,"abstract":"<div><div>Fiber-reinforced composites have been used to improve the mechanical properties and overall performance of 3D printed concretes. Short fibers improve mechanical properties as well as reduce cracking due to autogenous and drying shrinkage of printed material. Moreover, the rheological properties of micro-reinforced composite materials play an important role to improve their processability by additive manufacturing. Therefore, the present study investigates the effect of micro-fibers addition on rheological properties and 3D printing processability of concrete based composites. For that a set a concrete mixtures containing steel, rock wool, or cellulose microfiber (varying from 0.5 wt% to 2.0 wt%) were produced. An extensive rheological assessment of the mixtures, utilizing oscillatory tests modes, like amplitude, frequency and time sweep, was conducted. The capacity to produce a continuous filament (extrudability test) and the ability to support successive layer deposition without failure (buildability test) were evaluated. The results show that incorporating fibers on concrete allows precise control of the material’s rheological properties, leading to optimize printability. The fibers addition increases the storage G’ and loss modulus G’’ of concrete, with the cellulose reinforced concrete exhibiting the highest storage G’ and loss modulus G’’. Consequently, fiber addition affects layer support and open time during printing. Among the tested materials, cellulose fibers had the most significant impact on the concrete rheological behavior. Furthermore, extrusion nozzle size should be adjusted according to fiber length to prevent clogging during extrusion. These findings contribute to better understanding the role of rheological properties in optimizing the 3D printing process of microfiber reinforced concrete.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"105 ","pages":"Article 112406"},"PeriodicalIF":6.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698004","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

Effect of high temperature and cooling method on compression and fracture properties of geopolymer-based ultra-high performance concrete

IF 6.7 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112433

Junjie Huang, Jun Li, Ruizhe Shao, Chengqing Wu

{"title":"Effect of high temperature and cooling method on compression and fracture properties of geopolymer-based ultra-high performance concrete","authors":"Junjie Huang, Jun Li, Ruizhe Shao, Chengqing Wu","doi":"10.1016/j.jobe.2025.112433","DOIUrl":"10.1016/j.jobe.2025.112433","url":null,"abstract":"<div><div>High-temperature damage to concrete is one of the most common hazards to be experienced during its service life. In this study, the mechanical properties of geopolymer-based ultra-high performance concrete (GUHPC) after high temperature exposure using different cooling methods were investigated. The specimens were heated to 200 °C, 400 °C, 600 °C, 800 °C and 1000 °C, followed by air and water cooling. Then the quasi-static tests were conducted with the assistance of a digital image correlation (DIC) device to examine the compressive and flexural strength, elastic modulus, fracture performance, and failure patterns. In addition, the microstructural change of GUHPC after high temperature exposure was analysed utilizing X-ray Diffraction (XRD) and Scanning Electron Microscope (SEM) methods. Test results revealed that GUHPC demonstrated different degrees of thermal damage at high temperatures ranging between 200 °C and 1000 °C but exhibited superior thermal spalling resistance. The reduction in strength, elastic modulus and fracture properties after high temperature exposure can be divided into three stages, i.e., 25–200 °C, 400–600 °C and 800–1000 °C, respectively. These three stages defined the mild, moderate, and severe damage. Compared to air cooling, water cooling caused thermal shock to specimens, resulting in a greater loss of strength. The microstructural analysis indicated that the damage to steel fibres along with the formation of new substances due to phase transition at high temperatures led to variations in the internal structure, consequently affecting the mechanical performance of the studied GUHPC.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"105 ","pages":"Article 112433"},"PeriodicalIF":6.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698068","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

Mesoscale modelling for investigating the thermo-mechanical behaviour of geopolymer concrete

IF 6.4 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112435

Feiyu Shi, Long-yuan Li, Shanshan Cheng

引用次数: 0

Electrochemical extraction of chloride in OPC-CSA composite conductive mortar with nano-Al2O3

IF 6.7 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112432

Li Tian , Tao Liu , Hua Fu , Penggang Wang , Muhammad Taqi , Weichao Li , Lang Cui , Yifei Wang

{"title":"Electrochemical extraction of chloride in OPC-CSA composite conductive mortar with nano-Al2O3","authors":"Li Tian , Tao Liu , Hua Fu , Penggang Wang , Muhammad Taqi , Weichao Li , Lang Cui , Yifei Wang","doi":"10.1016/j.jobe.2025.112432","DOIUrl":"10.1016/j.jobe.2025.112432","url":null,"abstract":"<div><div>In order to solve the challenge of corrosion in eroded reinforced concrete and increase the durability of reinforced concrete structure, a unique conductive mortar for the electrochemical extraction of chloride was developed. The main cementitious materials used in this paper was 30 % ordinary Portland cement (OPC) and 70 % calcium sulfoaluminate (CSA) cement, with different amounts of nano-alumina (nano-Al<sub>2</sub>O<sub>3</sub>). In the composite conductive mortar with OPC-CSA, the impact of nano-Al<sub>2</sub>O<sub>3</sub> on the electrochemical extraction chloride was investigated. Moreover, mechanistic interpretation was based on the pore structure, X-ray diffraction (XRD), and scanning electron microscopy (SEM). According to the findings, adding CSA to OPC decreased its compressive and flexural qualities and setting time. However, the conductive mortar's setting time still met the fast-hardening requirement, however, as it achieved the initial setting in 3.5 min. Significantly, conductive mortar with CSA-OPC enhanced overall electrochemical chloride extraction by 45.1 % as compared to conductive mortar with CSA due to its increased porosity. In addition, the flexural and compressive strengths first increased and then decreased with the addition of nano-Al<sub>2</sub>O<sub>3</sub>. However, the overall efficiency of electrochemical chloride extraction showed a trend of first decreasing and then increasing, reaching up to 45.8 %, because of the initial decrease and subsequent increase of porosity in conductive mortar. The addition of OPC and nano-Al<sub>2</sub>O<sub>3</sub> to CSA results in an increase in AFm and C-(A)-S-H. Thereby, the bound chloride rate was enhanced, reaching up to 34.2 %. 2 % was the optimal dosage of nano-Al<sub>2</sub>O<sub>3</sub>. The hypothesis that chloride ions were reduced faster in reinforced concrete was confirmed.</div></div>","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"105 ","pages":"Article 112432"},"PeriodicalIF":6.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724756","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

The impact of sanitary ceramic wastes and corn stalk digestate on the microstructure and physico-mechanical properties of ceramic bricks

IF 6.4 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112394

Małgorzata Franus, Danuta Barnat-Hunek, Monika Jarosz-Hadam, Małgorzata Grzegorczyk-Frańczak, Anton Trník, Joanna Fronczyk

引用次数: 0

BIS-model: An explicit SysML-based modeling and analysis framework for smart building systems

IF 6.4 2区工程技术

Journal of building engineering Pub Date : 2025-03-20 DOI: 10.1016/j.jobe.2025.112411

Deshuai Han, Guanglian Ma, Yanping Cai, Xuewei Zhang

{"title":"BIS-model: An explicit SysML-based modeling and analysis framework for smart building systems","authors":"Deshuai Han, Guanglian Ma, Yanping Cai, Xuewei Zhang","doi":"10.1016/j.jobe.2025.112411","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.112411","url":null,"abstract":"Smart building systems have recently achieved rapid development. However, a general software design framework for these systems is still lacking, due to their complexity in scale, structural intricacies, and multidisciplinary integration. To address this challenge, a framework called <ce:underline>B</ce:underline>u<ce:underline>I</ce:underline>lding <ce:underline>S</ce:underline>ystems <ce:underline>Model</ce:underline>ing (BIS-Model) is proposed to enable systematic modeling, design, and behavior analysis of smart building systems. By extending SysML, BIS-Model introduces three types of modeling views: (1) a structure view called BIS-Block Definition Diagram that describes the complex system compositions, structure characteristics, and device properties of smart building systems; (2) a connection view called BIS-Internal Block Diagram that specifies device connections and interface properties of smart building systems; and (3) a behavior view called BIS-Sequence Diagram that specifies and analyzes the dynamic behaviors of smart building systems. Moreover, a support tool and roadmap are presented to integrate BIS-Model into each phase of smart building software development. The BIS-Model framework was empirically validated through a study using a real-world smart building system. The results demonstrate that BIS-Model enhances model quality by 45.17 % and reduces modeling time by 43.09 %, compared to the standard SysML, thereby significantly improving the design effectiveness and efficiency of smart building systems.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"7 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678209","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