Developments in the Built Environment最新文献_第10页

Synergistic modification of bamboo aggregates by sodium alginate-CaCl2: optimization and performance evaluation of sustainable lightweight concrete 海藻酸钠- cacl2协同改性竹骨料：可持续轻量化混凝土的优化与性能评价

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100670

Xiang Chen , Hongzhou Zhu , Xinqiang Zhang , Dan Yang , Zhenzhen Wang , Jian Zhang , Jian Zhang

{"title":"Synergistic modification of bamboo aggregates by sodium alginate-CaCl2: optimization and performance evaluation of sustainable lightweight concrete","authors":"Xiang Chen , Hongzhou Zhu , Xinqiang Zhang , Dan Yang , Zhenzhen Wang , Jian Zhang , Jian Zhang","doi":"10.1016/j.dibe.2025.100670","DOIUrl":"10.1016/j.dibe.2025.100670","url":null,"abstract":"<div><div>In the context of global climate change, the demand for green building materials has grown increasingly urgent. This study has made significant advancements in sustainable construction materials by developing all-bamboo aggregate concrete (BAC) enhanced with a sodium alginate-CaCl<sub>2</sub> synergy through an environmentally friendly process. Using response surface methodology optimization, the 28-day compressive strength was increased to 8.10 MPa. Scanning electron microscope (SEM) analysis indicates that the alginate gel forms a cross-linked network within bamboo micro-cracks, substantially improving interfacial bonding. A novel bamboo aggregate mass index (BAMI) has been introduced to quantify particle shape, allowing precise control over aggregate quality, thus offering a new solution for lightweight pavement materials. While fly ash reduces short-term strength, its low alkalinity and secondary hydration effects positively influence long-term durability. This research provides a scientific basis for utilizing BAC in pedestrian pavements and advancing sustainable construction materials.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100670"},"PeriodicalIF":6.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878832","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

Utilizing rice husk ash as cement replacement in pervious concrete: A review 稻壳灰在透水混凝土中替代水泥的研究进展

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100675

Elnaz Khankhaje, Hyounseung Jang, Jimin Kim, Mahdi Rafieizonooz

引用次数: 0

Probabilistic risk assessment of historic timber flooring systems subjected to fire 历史木地板系统火灾的概率风险评估

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100659

E. Garcia-Castillo , I. Paya-Zaforteza , T. Gernay

{"title":"Probabilistic risk assessment of historic timber flooring systems subjected to fire","authors":"E. Garcia-Castillo , I. Paya-Zaforteza , T. Gernay","doi":"10.1016/j.dibe.2025.100659","DOIUrl":"10.1016/j.dibe.2025.100659","url":null,"abstract":"<div><div>Structural fire analyses of historic buildings face significant uncertainties due to their age and the scarcity of specific fire safety guidelines in modern codes. Typical prescriptive approaches often result in interventions that compromise the aesthetic and cultural value of these structures. In contrast, probabilistic performance-based approaches address uncertainties and offer flexibility to achieve compliance with fire safety requirements while preserving built heritage.</div><div>This study introduces a novel probabilistic methodology to assess the fire resistance of timber structures, demonstrated on historic timber jack arch flooring systems. Extensive numerical simulations were conducted to develop fire fragility functions and obtain reliability indices, incorporating variability in timber density, mechanical properties, strength reduction with temperature, and applied loads. Results indicate that many of the historic systems studied possess adequate fire safety. Applicable to any timber structure, this methodology allows case-specific analyses, promoting the rational conservation and design of heritage and contemporary timber systems.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100659"},"PeriodicalIF":6.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859554","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

Optimisation of embodied carbon and construction cost of concrete, steel and timber piles 优化混凝土桩、钢桩和木桩的含碳量和施工成本

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100656

Kareem Abushama, Will Hawkins, Loizos Pelecanos, Tim Ibell

{"title":"Optimisation of embodied carbon and construction cost of concrete, steel and timber piles","authors":"Kareem Abushama, Will Hawkins, Loizos Pelecanos, Tim Ibell","doi":"10.1016/j.dibe.2025.100656","DOIUrl":"10.1016/j.dibe.2025.100656","url":null,"abstract":"<div><div>The construction sector accounts for a considerable share of the carbon emissions globally. While extensive research has examined the embodied carbon and cost optimisation of superstructures, comparatively little attention has been given to optimising deep foundations with respect to these criteria. This study employs a hybrid genetic algorithm to optimise the embodied carbon and construction cost of six pile types across various soil conditions and load capacities. The results indicate that timber piles have the lowest embodied carbon, with reductions of approximately 70 % and 60 % compared to solid concrete piles in clayey and sandy soils, respectively. Hollow concrete piles exhibit lower emissions than solid alternatives, particularly at higher capacities. Steel piles, while structurally efficient, generally have higher embodied carbon than its other counterparts. Conversely, cost optimisation results show that solid and hollow concrete piles are the most economical, whereas timber piles are the most expensive due to their limited load capacity. A case study of a high-rise building in London's undrained clay demonstrated that carbon-optimised pile designs could achieve the same load capacity while reducing embodied carbon by 45 %–69 % and lowering construction costs compared to the as-built design. These findings highlight the potential for significant reductions in the embodied carbon of deep foundations through optimisation, without requiring changes to materials, design methods, or construction practices. The study underscores the call for industry-wide adoption of computational optimisation techniques to support sustainable foundation design.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100656"},"PeriodicalIF":6.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847507","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

Strengthening and impact performance of reinforced concrete (RC) beams using various high-performance fiber-reinforced cementitious composites (HPFRCCs) 各种高性能纤维增强胶凝复合材料（hpfrcc）对钢筋混凝土（RC）梁的加固及冲击性能研究

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100650

Booki Chun, Seung Won Lee, Doo-Yeol Yoo

{"title":"Strengthening and impact performance of reinforced concrete (RC) beams using various high-performance fiber-reinforced cementitious composites (HPFRCCs)","authors":"Booki Chun, Seung Won Lee, Doo-Yeol Yoo","doi":"10.1016/j.dibe.2025.100650","DOIUrl":"10.1016/j.dibe.2025.100650","url":null,"abstract":"<div><div>This study investigates the strengthening effect of various high-performance fiber-reinforced cementitious composites (HPFRCCs) on the impact resistance of reinforced concrete (RC) beams. Four different HPFRCCs—ultra-high-performance concrete (UHPC), high-performance strain-hardening cementitious composite (HPSHCC), engineered cementitious composite (ECC), and ultra-rapid-hardening strain-hardening cementitious composite (URSHCC)—were evaluated alongside a normal-strength concrete (NSC) as a control. The results showed that RC beams strengthened with UHPC and HPSHCC achieved the highest flexural load capacities, approximately 8 % greater than the plain RC beam. While UHPC reduced flexural ductility due to its lower tensile strain capacity, HPSHCC enhanced ductility. Strengthening with HPFRCCs also led to a reduction in maximum deflection under impact, with the S-UHPC beam showing the lowest deflection. Despite impact damage, RC beams retained residual flexural strength similar to undamaged beams but exhibited reduced flexural stiffness and ultimate deflection. However, UHPC and URSHCC experienced decreased load capacity after impact due to deformation beyond their tensile strain limits. These findings highlight the effectiveness of HPFRCCs, particularly HPSHCC, in improving the impact resistance and post-damage performance of RC beams.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100650"},"PeriodicalIF":6.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759461","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

An innovative drive-through approach for structural testing and experimental insights from two cable stayed bridges 两座斜拉桥结构测试的创新驱动方法和实验启示

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100653

Seyedmilad Komarizadehasl , Zhouhui Shen , Ye Xia , Mingming Song , Jose Turmo

{"title":"An innovative drive-through approach for structural testing and experimental insights from two cable stayed bridges","authors":"Seyedmilad Komarizadehasl , Zhouhui Shen , Ye Xia , Mingming Song , Jose Turmo","doi":"10.1016/j.dibe.2025.100653","DOIUrl":"10.1016/j.dibe.2025.100653","url":null,"abstract":"<div><div>Effective monitoring of bridge infrastructure is essential for ensuring safety, reliability, and longevity. Traditional Structural Health Monitoring (SHM) methods have been challenged by installation complexity, maintenance demands, and high costs, particularly in large-scale or long-span bridges. In response, a novel, non-intrusive drive-through method for extracting bridge eigenfrequencies has been developed using vehicle-multi-mounted Micro-Electro-Mechanical Systems (MEMS) sensors. A passing vehicle is thereby converted into a mobile sensing platform, and bridge dynamic properties are captured under normal traffic conditions. Experimental validation was conducted on Shanghai's Yangpu and Nanpu cable-stayed bridges, and eigenfrequency extraction from a single crossing was demonstrated, significantly reducing the need for multiple passes. The signal-to-noise ratio was improved by the fusion of data from multiple sensors, and frequency identification was achieved. A practical and cost-effective solution for large-scale bridge monitoring is thus offered, and further work is planned to extend the methodology to additional structural parameters and enhanced robustness.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100653"},"PeriodicalIF":6.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824692","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

Circularity assessment across construction project phases with Building Information Modelling 利用建筑信息模型对建筑项目各阶段的循环性进行评估

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100663

Li Jiang, Marc van den Berg, Hans Voordijk, Arjen Adriaanse

{"title":"Circularity assessment across construction project phases with Building Information Modelling","authors":"Li Jiang, Marc van den Berg, Hans Voordijk, Arjen Adriaanse","doi":"10.1016/j.dibe.2025.100663","DOIUrl":"10.1016/j.dibe.2025.100663","url":null,"abstract":"<div><div>To facilitate circular design and construction practices, project stakeholders need insights into circularity across different project phases. Building information modelling (BIM) technologies provide new opportunities for developing methods to assess the circularity performance of buildings. However, most existing BIM-based circularity methods are not well-suited to handle different amounts of available information or varying Levels of Development (LOD) across project phases. This study, therefore, used a Design Science Research Methodology to develop a prototypical BIM-based circularity assessment tool. This standalone tool integrated three calculation models with a user interface to offer circularity insights based on BIM models with different LOD, covering initiative, design and construction phases. The tool's potential was validated through twelve user-based evaluation sessions and its implementation in a renovation project in the Netherlands. This study contributes to the field by introducing an innovative approach that takes information availability into account and showcases BIM's capabilities to support circularity assessments.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100663"},"PeriodicalIF":6.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859552","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

Method to develop social impact pathways: A case on carbon- and steel reinforced concrete 发展社会影响路径的方法：以碳钢和钢筋混凝土为例

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100665

Alexandra Weniger, Arij Mohamad Radwan Omar Chabrawi, Marzia Traverso

引用次数: 0

Compression performance and microscopic mechanism of cemented high-sulfide tail fills under varying pH levels: The role of alkaline agents 不同pH值下高硫胶结尾填料的压缩性能及微观机理：碱性剂的作用

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100669

Qianru He , Shuai Cao , Erol Yilmaz

{"title":"Compression performance and microscopic mechanism of cemented high-sulfide tail fills under varying pH levels: The role of alkaline agents","authors":"Qianru He , Shuai Cao , Erol Yilmaz","doi":"10.1016/j.dibe.2025.100669","DOIUrl":"10.1016/j.dibe.2025.100669","url":null,"abstract":"<div><div>Sulfur-rich tailings are highly susceptible to acid generation during the filling process, which can adversely affect the pH and compressive properties of cementitious backfill. Hence, this study conducted an exploratory test to better investigate the changes in the compressive behavior and micro-mechanism of cementitious high sulfur tailings backfill material (CHSTB) under different pH conditions by adding alkaline substances. Samples were prepared using varying doses of fly ash (FA), sodium bicarbonate (SB), and calcium oxide (CaO) as alkaline agents. The strength and microscopic features of CHSTB were examined by UCS, pH, and SEM. Lab verdicts released that FA-coated CHSTB's strength outperformed the other materials, with the 3 % FA-doped CHSTB achieving the highest UCS of 1.34 MPa. In terms of pH, all CHSTBs were strongly alkaline (pH ≥ 10.8). However, the pH changes of CHSTB with FA and SB were minimal and dose-independent, while the addition of CaO significantly increased the pH (up to 12.5). SEM analysis revealed that CHSTB with 3 % FA and SB exhibited a denser microstructure. In conclusion, FA and SB proved to be more effective, with significant research and application potential. This study also provides the optimal concentration range for various alkaline agents, offering an important reference for enhancing CHSTB and improving filling technology.</div></div>","PeriodicalId":34137,"journal":{"name":"Developments in the Built Environment","volume":"22 ","pages":"Article 100669"},"PeriodicalIF":6.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869396","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

Corrigendum to “Enhanced robotic cross-laminated timber panel assembly process” [Develop. Built Environ. 22 (2025) 100667] “改进的机器人交叉层压木板组装工艺”的勘误表[发展]。建筑环境，22 (2025)100667]

IF 6.2 2区工程技术

Developments in the Built Environment Pub Date : 2025-04-01 DOI: 10.1016/j.dibe.2025.100680

Eric Forcael , Ramón Mata , Bryan González , Alexander Opazo-Vega , Rodrigo García-Alvarado , Marcelo González , Eduardo Núñez , Javiera Padilla

引用次数: 0