Journal of building engineering最新文献

{"title":"Automation and Optimization Tool for Efficient Shear Steel Connection Design","authors":"Eric Duong, Ali Sadrara, Ali Imanpour, Robert G. Driver","doi":"10.1016/j.jobe.2025.113452","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113452","url":null,"abstract":"This study proposes an efficient optimization tool for five commonly used shear steel connections. Using metaheuristic algorithms, the tool evaluates numerous design options for all shear connections in a structure, suggesting the most economical design options considering material and fabrication costs, as well as constructability constraints. Implemented in Tekla Structures, a commonly used building information modeling software in the steel fabrication industry, this tool automates the design and optimization of a broad range of shear connections. It allows for adjustments based on user preferences and customization for different steel fabrication practices. To assess the tool's effectiveness against real-world designs, two case studies were conducted on 2- and 5-storey steel buildings. These studies showcased the tool’s potential to generate more economical connections in significantly shorter time frames, confirming its applicability, efficiency, and potential as an alternative to conventional connection design procedures in the steel industry.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"38 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622711","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}

{"title":"Mechanical characterization and numerical modeling of adobe walls with additives in normal and interlocking configurations","authors":"Nimesh Chettri, Pema Leki, Tenzin Kelzang Dorji, Kinley Dorji, Dipendra Gautam","doi":"10.1016/j.jobe.2025.113454","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113454","url":null,"abstract":"Adobe construction system is one of the widely practiced construction systems worldwide. Many historical cities and monuments use adobe units to construct load bearing walls. Adobe units could be found either produced solely using clay or with some additives to enhance mechanical characteristics. Field investigations and inventories reported from across the world confirm that mechanical characteristics of adobe units vary significantly even within the same region, despite having little to no variation in size. Meanwhile, following empirical observations and knowledge of material behavior, the application of additives in adobe unit production has gained momentum for quite some time now. To assess the contribution of additives in the compressive behavior of adobe units and the lateral load response of adobe walls, we performed an extensive experimental campaign considering different extents of lime, cement, sawdust, jute fibers, and coconut fibers as additives. The lateral load response of adobe walls with normal and interlocking units is experimentally quantified for single and double wythed configurations. Numerical modeling is also performed to quantify the lateral load-deformation response and failure mechanism in adobe walls. Both experimental and numerical results conclude that toppling failure is the most governing failure mode in adobe walls with or without additives. The sum of observations highlights that 10 % sawdust as an additive enhances the lateral load response of adobe walls most effectively compared to other additive based normal and interlocking adobe walls. Similarly, 10 % cement additive is the most efficient in enhancing the compressive strength of adobe units. Thus, 10 % sawdust and 10 % cement can be considered respectively for lateral and compressive strength enhancements in adobe constructions.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"94 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622508","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}

{"title":"Corrigendum to “Geothermal cascade utilization for low-carbon building cooling and heating via collaboration of shallow and deep borehole heat exchanger array” [J. Build. Eng. 101 (2025) 111870]","authors":"Wei He, Bo Ren, Heping Jin, Rujie Liu, Huiheng Luo, Yongqiang Luo, Chaohui Zhou","doi":"10.1016/j.jobe.2025.113453","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113453","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"48 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622759","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}

{"title":"Empirical Fragility Curves for RC Residential Buildings after 2023 Kahramanmaraş, Türkiye Earthquakes","authors":"Ahmet Can Altunışık, Rafet Sisman, Murat Günaydin, Fatih Yesevi Okur, Zafer Yilmaz, Fezayil Sunca, Patrick Hadinata, Banu Aslan, Tugrul Sezdirmez, Ertugrul Taciroglu","doi":"10.1016/j.jobe.2025.113446","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113446","url":null,"abstract":"A series of seismic events impacted southern Türkiye on February 6, 2023, causing substantial damage on building stock and infrastructure. The sequence comprised three distinct earthquakes with moment magnitudes (M<ce:inf loc=\"post\">w</ce:inf>) of 7.7, 6.6, and 7.6, occurring chronologically. Eleven cities endured a direct impact, resulting in the collapse or severe damage of thousands of buildings. Promptly following the events, government authorities initiated post-earthquake site inspections, with a substantial number of engineers contributing voluntarily to the reconnaissance effort. This collaborative effort yielded a valuable dataset encompassing various structural features and corresponding damage levels for each evaluated building. The current study aims to leverage this data to establish empirical fragility curves for reinforced concrete residential buildings in Türkiye. Buildings are classified into six construction year categories and three height classes (low-, mid-, and high-rise) formed based on regulatory transitions and observed similarities in construction characteristics. Fragility curves for eighteen building categories are derived using the Maximum Likelihood Estimation (MLE) technique. The results clearly indicate that newer buildings exhibit reduced seismic vulnerability, while mid- and high-rise buildings consistently demonstrate higher fragility across all construction periods. The developed fragility curves hold significant utility for risk assessment studies and rapid post-earthquake damage evaluations.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"151 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622712","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}

{"title":"Integration of real-time labor positioning data and 3D laser scan model for dangerous zone access monitoring","authors":"Suhyun Kang, Sangyong Kim, Gwang-Hee Kim","doi":"10.1016/j.jobe.2025.113445","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113445","url":null,"abstract":"Ensuring safety at construction sites is imperative to mitigate the risk of unsafe worker behavior. However, conventional worker safety-monitoring practices heavily rely on labor-intensive and error-prone manual methods. To address this challenge, we propose a real-time safety monitoring solution that integrates labor location data with 3D laser scanning data on construction sites. Specifically, our proposal introduces an indoor and outdoor location tracking method tailored for construction sites. We have also developed software that seamlessly integrates with 3D scan data, comprising point cloud information. To assess the feasibility of our safety monitoring system at the site, we conducted a thorough examination of the current safety management practices at an active construction site, analyzing the scenarios associated with managing ongoing risk factors for each process. This study delves into the primary risk factors identified during our fieldwork, presenting three specific application scenarios for the system. As a result, we demonstrate that our proposed system can effectively contribute to safety monitoring in areas such as controlling inadequate aisle use, managing the risk of heavy equipment collisions, implementing access control, and regulating end and aperture access control.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"124 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622713","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}

{"title":"A Novel Heat Load Forecasting Method Based on CASDA-Driven Unsupervised Clustering","authors":"Qi Liu, Hongjuan Hou, Zekai Zhou, Lengge Si, Xi Wang, Yan Jia, Eric Hu","doi":"10.1016/j.jobe.2025.113457","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113457","url":null,"abstract":"Accurate heat load forecasting is essential for improving the operational efficiency and intelligent management of district heating systems, particularly in addressing the mismatch between heat supply and demand caused by spatiotemporal variability. While Artificial Neural Network (ANN) have shown promise in this domain, their performance is highly sensitive to the quality and volume of training data. Given the limitations of data availability and the cost of large-scale data acquisition, enhancing data quality through preprocessing has become a practical alternative. This study proposes an improved data preprocessing strategy, termed Cluster Analysis based on Similar Day Approach (CASDA), to enhance ANN training for heat load forecasting. Unlike traditional Similar Day Approach (SDA) that relies primarily on weather similarity, CASDA clusters historical data based on heat load patterns, providing a more representative training dataset. Clusters are labeled by dominant weather types and used to train distinct ANN models. For forecasting, the most appropriate model is selected by evaluating the similarity between the forecast day and each cluster using a combination of Grey Relational Analysis (GRA) and Pearson correlation. A case study on a district heating substation in Beijing demonstrates that CASDA significantly improves forecasting accuracy across multiple ANN architectures, including Recurrent Neural Network (RNN), Convolutional Neural Network (CNN) and Transformers, and reduces MAPE by 15.2% (ConvGRU-GRU) compared with traditional SDA methods. Notably, the Transformer-based model (CMT) achieved the best performance, with an average validation R<ce:sup loc=\"post\">2</ce:sup> of 0.77, outperforming both traditional SDA models and models trained on unprocessed data. Moreover, CASDA offers reduced modeling costs by optimizing data utilization.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"109 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622714","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}

{"title":"Seismic performance and damage analysis of replaceable steel coupling beam with slab","authors":"Shiying Xiao, Mengfu Wang, Qiangqiang Wu","doi":"10.1016/j.jobe.2025.113430","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113430","url":null,"abstract":"In this study, quasi-static tests were conducted on four replaceable steel coupling beams (RCBs) with slabs to investigate both slab damage and the mechanical properties of the RCBs. Four RCB specimens were fabricated and tested, each with different slab configurations or RCB construction measures. The experimental results showed that the use of engineered cementitious composites (ECC) materials significantly reduced the crack width of the slotted slab; the non-uniform section height of non-yield beam segments reduced both the crack width and the number of cracks in the slab; the arrangement of prestressed tendons and concrete-filled steel tubes (CFSTs) increased the shear strength of RCB by 16 % but simultaneously decreased its deformation capacity by 21 %. Finite element analysis revealed that specimens SCB1 and SCB2 had large residual slab deformations at the end of loading, which was unfavourable for controlling the slab damage; the axial constraint could result in a substantial axial pressure on the steel link during the unloading stage, ranging between 0.68 and 1.52 times its shear capacity, which complicated the replacement process of the link; the axial tension caused by slab deformation increased the shear strength of the steel links with varying length ratios by 1.06–1.27 times. Therefore, when designing RCBs, it was necessary to account for the slab's impact on the RCB's shear strength.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"29 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622716","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}

{"title":"Life cycle insights into construction and demolition waste management: Past, present and emerging futures","authors":"Yu Gao, Tak Wing Yiu, Xuesong Shen, Vivian W.Y. Tam","doi":"10.1016/j.jobe.2025.113441","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113441","url":null,"abstract":"Construction and demolition waste (C&amp;DW) poses a significant challenge to sustainable development and the circular economy. While research in this domain has expanded, existing reviews often focus on isolated stages or methods, lacking a comprehensive life cycle perspective. This paper presents a novel integration of bibliometric and content analysis, examining 1025 articles (2015–2024) from the Web of Science database. The review encompasses the full life cycle of C&amp;DW management, including waste generation prediction, material identification and classification, transportation, and recycling or disposal. Key trends were identified through co-occurrence, co-citation, and cluster analysis, revealing a shift from traditional qualitative approaches to intelligent and data-driven methods. Four major research gaps were identified: limitations in predictive models, insufficient applications of intelligent technologies, inadequate multi-stakeholder governance, and the lack of standardized evaluation frameworks. Future directions are proposed to guide integrated and scalable solutions. These findings offer a holistic understanding of the field and inform more effective and sustainable C&amp;DW management strategies.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"14 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622738","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}

{"title":"Thermal comfort evaluation with a passive sensor manikin under radiant exposures in kitchen","authors":"Yingqi Zeng, Maohui Luo, Jiajun Li, Xiang Zhou, Jun Gao, Yuhang Wu, Haisheng Wang, Yao Zhang, Haifeng Xia","doi":"10.1016/j.jobe.2025.113450","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113450","url":null,"abstract":"In residential kitchens, the high temperatures, humidity, and substantial radiant heat exposure from flame and stove are prevalent, therefore thermal comfort issues need to be considered seriously. Local air-conditioning (AC) can alleviate discomfort. However, current thermal comfort models lack consideration of the effects of local flame radiation exposure and local AC on human thermal responses. This study conducted experiments to investigate human thermal comfort under conditions with and without an AC system. Tests were performed using a passive sensor manikin to accurately describe the local boundary parameters around the occupant, with local air temperature, radiant flux, relative humidity, and air velocity measurements. The results showed that flame and gas stove generated radiant heat flux density at the right hand up to 235 W/m<ce:sup loc=\"post\">2</ce:sup>. The chest and abdomen were also significantly affected, with radiant intensities exceeding 132 and 158 W/m<ce:sup loc=\"post\">2</ce:sup>, respectively. A 16-segment human model was developed, adding the local radiant heat flux as an input parameter. A Python-based visualization tool, KTCET, was developed. KTCET integrates the thermal physiology model and thermal comfort model. The accuracy of KTCET was validated by comparing prediction results with experimental data. It demonstrated good agreement between the predictions and experimental values, indicating that KTCET effectively captured variation trends across different kitchen scenarios. KTCET was used to evaluate local AC airflow strategies and optimal operating parameters to improve kitchen thermal comfort. These insights can provide a scientific basis for the intelligent and customized design of residential kitchens.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"38 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622719","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}

{"title":"Effect of ground surface boundary conditions on thermal performance of ground source heat pump system with spiral ground heat exchanger","authors":"Kun Zhou, Yong Li, Weizhi Wei, Zhiliang Cui, Mingzhou Xia, Zengxi Li","doi":"10.1016/j.jobe.2025.113448","DOIUrl":"https://doi.org/10.1016/j.jobe.2025.113448","url":null,"abstract":"The spiral ground heat exchanger (GHE), characterized by its larger contact area with the surroundings, exhibits higher heat transfer efficiency compared to traditional U-shaped GHE. This study aimed to compare the effect of ground surface boundary conditions (BCs) on the thermal performance of ground source heat pump (GSHP) system with spiral GHE. Five commonly used BCs in the numerical models, namely adiabatic (BC1), constant temperature (BC2), time-varying temperature (BC3), convective heat transfer (BC4), and energy balance (BC5) boundary condition, were considered. A three-dimensional (3D) numerical model of spiral GHE considering unsaturated porous soil, time-varying flowrate control, and ambient environment disturbance was built and coupled with the heat pump model by COMSOL to analyze the thermal performance of GSHP system with various ground surface BCs. The impacts of borehole depth and ground thermal property on the ground surface BCs were further investigated. Results reveal that there is no definitive relationship between the surface temperature and time due to atmospheric thermal disturbances. Assigning adiabatic, constant temperature, or convective BC significantly reduces the accuracy of ground, grout, borewall, and fluid temperature, as well as the coefficient of performance (COP). As the BC changes from BC1 to BC2, BC4, and BC3, the main variation range of ΔCOP decreases by 17.21 %, 24.59 %, and 90.16 %. The errors caused by improper ground surface BC settings become more significant as the borehole depth (<ce:italic>H</ce:italic>) and ground porosity (<ce:italic>φ</ce:italic>) decrease. The main variation range of difference of mean fluid temperature increases by 5.74 %, 12.87 %, and 9.78 % as <ce:italic>H</ce:italic> reduces from 20 to 10 m and rises by 18.00 %, 5.97 %, and 14.81 % as <ce:italic>φ</ce:italic> reduces from 0.73 to 0.43. The energy balance BC or actual time-varying temperature BC calculated by energy balance equation is recommended for modeling the ground surface conditions. This paper underscored the significance of employing proper ground surface BC to accurately evaluate the thermal performance of GSHP system with spiral GHE.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"109 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622721","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}