Structures最新文献_第6页

Post-earthquake detection of surface spalling and cracks in masonry buildings based on computer vision 基于计算机视觉的砌体建筑表面剥落和裂缝震后检测

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-24 DOI: 10.1016/j.istruc.2025.109226

Longmei Ling , Gao Ma , Hyeon-Jong Hwang , Xiaojing Tan

{"title":"Post-earthquake detection of surface spalling and cracks in masonry buildings based on computer vision","authors":"Longmei Ling , Gao Ma , Hyeon-Jong Hwang , Xiaojing Tan","doi":"10.1016/j.istruc.2025.109226","DOIUrl":"10.1016/j.istruc.2025.109226","url":null,"abstract":"<div><div>Rapid post-earthquake detection of visible damage to buildings is essential for damage assessment and ensuring safety. The inefficiency of traditional methods, such as manual visual inspection and measurement, necessitates automatic solutions, especially for masonry buildings, which are widely used and more vulnerable in economically underdeveloped areas. In this study, an automatic damage detection method combining machine learning and image processing techniques was proposed to identify and quantify cracks and spalling on the plastered surfaces of masonry walls. An image classification model based on deep convolutional neural networks (CNNs) was developed, which was combined with the sliding window technique and Otsu threshold segmentation method to generate binary images of the damage regions from captured images. This method streamlines data preparation by avoiding pixel-level annotation, significantly reducing manual labeling effort compared to direct training of segmentation models. Subsequently, based on the differences in geometry and size between the crack region and spalling region, morphological operations were applied to separate them. Finally, the maximum inscribed circle algorithm and the pixel counting method were used to measure the maximum crack width and spalling area respectively. The measurement results indicate that the proposed method can effectively identify the crack and spalling regions on the plastered surfaces of masonry buildings from photography images, as well as achieve pixel-level segmentation of the damage and accurately quantify crack widths and spalling areas. The proposed method provides a reliable solution for large-scale damage detection in the early stages following the earthquake.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109226"},"PeriodicalIF":3.9,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131735","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

Study on axial compressive behavior of concrete-filled steel tube columns with mult-source mixed recycled coarse aggregate 多源再生粗骨料混合钢管混凝土柱轴压性能研究

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-24 DOI: 10.1016/j.istruc.2025.109280

Wenpeng Wang , Kaicheng Xu , Hanqi Xu , Liqing Zhang

{"title":"Study on axial compressive behavior of concrete-filled steel tube columns with mult-source mixed recycled coarse aggregate","authors":"Wenpeng Wang , Kaicheng Xu , Hanqi Xu , Liqing Zhang","doi":"10.1016/j.istruc.2025.109280","DOIUrl":"10.1016/j.istruc.2025.109280","url":null,"abstract":"<div><div>The quality of recycled coarse aggregate (RCA) is highly effected by the strength of original concrete. However, it is hard to confirm the source and strength of original concrete of mixed recycled coarse aggregate (MRCA) used in the actual engineering. In order to study the effects of multi-sources MRCA on the axial compressive behavior of concrete confined by steel tubes and use easily measured parameters to build a stress-strain model, 6 different types of MRCA were collected and the axial compressive tests and analysis of 63 plain mixed recycled concrete (PMRC) columns and 21 mixed recycled concrete-filled steel tube (MRCFST) columns were carried out. The results show that there are more cracks and holes in the microstructure of mixed recycled concrete (MRC), which results in a lower compressive capacity of PMRC than plain ordinary concrete (POC). The constraint of steel tube weakens the negative influence of MRCA on the compressive capacity of MRCFST, especially for the circular cross-section. The peak strain of MRCFST is smaller than that of ordinary CFST, and the reduction of peak strain of circular MRCFST is the smallest in different cross sections. Meanwhile, the peak strains of MRCFST columns in circular, square, and rectangular sections are all approximately linearly related to the apparent density (<em>ρ</em>), water absorption (<em>ω</em>) and crushing index (δ) of MRCA. The confinement coefficient has no obvious influence on the σ-ε curves of MRCFST with different sections, and the curves all exhibited the characteristic of “strain softening”. The predicted curves of the stress-strain model considering the effects of <em>ρ, ω</em> and <em>δ</em> parameters agree well with the experimental curves.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109280"},"PeriodicalIF":3.9,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124384","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

Theoretical derivation and experimental validation of a restoring force model for a self-centering rotational friction damper with variable friction device 变摩擦装置自定心旋转摩擦阻尼器恢复力模型的理论推导与实验验证

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-24 DOI: 10.1016/j.istruc.2025.109267

Peng Chang , Ronghao Zhao , Qiuge Feng , Na Yang

{"title":"Theoretical derivation and experimental validation of a restoring force model for a self-centering rotational friction damper with variable friction device","authors":"Peng Chang , Ronghao Zhao , Qiuge Feng , Na Yang","doi":"10.1016/j.istruc.2025.109267","DOIUrl":"10.1016/j.istruc.2025.109267","url":null,"abstract":"<div><div>A rotational friction damper is proposed for the mortise-tenon joints of wooden beams and columns. The proposed damper features variable friction characteristics and a degree of self-centering capability, attributed to its unique design features, including sliding teeth, a circular slope friction surface within the sliding groove, and a dish-shaped spring. This paper provides a comprehensive analysis of the damper's fundamental structure and operational mechanism, delineating the working process into five distinct stages. The output equations for each stage are derived, and a restoring force model for the damper is formulated. Subsequently, performance testing of the rotational friction damper is conducted under reciprocating force to validate the reliability of the established restoring force model. The findings indicate that the hysteretic curve of the damper exhibits a pronounced \"flag-shaped\" shape, with notable asymmetry between the positive and negative directions. Moreover, the damper demonstrates stable mechanical properties and effective energy dissipation capabilities. Furthermore, these results align closely with the experimental data, accurately reflecting the operational characteristics of the damper.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109267"},"PeriodicalIF":3.9,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123886","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

A general solution for predicting the interfacial debonding in plated beams 预测镀梁界面脱粘的一般解

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-24 DOI: 10.1016/j.istruc.2025.109137

Hao Zhou , Dilum Fernando , Dane Williams , Leo de Waal , Hugo Biscaia

{"title":"A general solution for predicting the interfacial debonding in plated beams","authors":"Hao Zhou , Dilum Fernando , Dane Williams , Leo de Waal , Hugo Biscaia","doi":"10.1016/j.istruc.2025.109137","DOIUrl":"10.1016/j.istruc.2025.109137","url":null,"abstract":"<div><div>The flexural strength of reinforced concrete, steel, or timber beams can be enhanced by bonding a thin plate to its soffit. While this technique was shown to be highly effective, the development of predictive models for plate end debonding failures of such plated beams is essential for the wide application of this technique. Existing elastic interfacial stress analysis solutions fail to provide accurate predictions of debonding loads, where the bonded interface is subjected to nonlinear deformations. More recently the cohesive zone (CZ) model has been successfully used to predict the plate end debonding loads of a plated beam subjected to a three-point bending load. However, this existing solution is not general enough to assess plate end debonding failure loads of plated beams. So far only numerical modelling (e.g. finite element modelling) techniques exist as generally applicable methods for predicting interfacial stresses in plated beams. As a simple analytical alternative for such numerical modelling-based methods, this paper presents a simple yet accurate general solution for predicting plate end debonding loads of plated beams. The solution is applicable to all cases of plated beams covering all sectional (e.g. tapered beams), loading (e.g. distributed load) and boundary conditions (e.g. continuous beams). Accuracy of the solution is demonstrated through comparisons with finite element results.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109137"},"PeriodicalIF":3.9,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124382","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

Interpretable multi-index seismic assessment framework for reinforced concrete columns using voting ensemble methodology 采用投票集合法的钢筋混凝土柱可解释多指标地震评价框架

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-24 DOI: 10.1016/j.istruc.2025.109270

Congcong Fan , Youliang Ding , Fangfang Geng , Jingwei Xue , Kang Yang

{"title":"Interpretable multi-index seismic assessment framework for reinforced concrete columns using voting ensemble methodology","authors":"Congcong Fan , Youliang Ding , Fangfang Geng , Jingwei Xue , Kang Yang","doi":"10.1016/j.istruc.2025.109270","DOIUrl":"10.1016/j.istruc.2025.109270","url":null,"abstract":"<div><div>Reinforced concrete (RC) columns constitute critical load-bearing components that determine structural safety under seismic actions. While conventional assessment methods relying on empirical formulas struggle to address complex multi-parameter interactions, this study proposes an interpretable Voting-based Optimization Tree Regression (VOTR) framework for multi-index seismic performance evaluation. A rigorously validated database of 145 experimental specimens was established, with data rationality confirmed through Pearson correlation and mutual information analysis. The VOTR model integrates Bayesian hyperparameter optimization with 10-fold cross-validation, demonstrating enhanced predictive accuracy over baseline machine learning methods in estimating ductility coefficients (Test R2 = 83.76 %) and yield displacements (Test R2 = 91.26 %). Through the analysis of data correlation and the significance of the SHAP model characteristics, it is found that the axial compression ratio, hoop ratio, and shear span ratio are the critical factors influencing ductility and yield displacement. The interpretability analysis bridges data-driven predictions with mechanical principles, revealing quantitative relationships between design parameters and seismic performance metrics. Comparative validations confirm the model's effectiveness in supporting performance-based seismic design optimization. This framework advances traditional prescriptive methods by providing a transparent, physics-informed assessment tool that balances computational accuracy with engineering interpretability for RC column safety evaluations.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109270"},"PeriodicalIF":3.9,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123883","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 digital twin on a residential housing in the Czech Republic on the BIM platform and its importance for the circular economy 捷克共和国住宅BIM平台上的数字孪生及其对循环经济的重要性

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-24 DOI: 10.1016/j.istruc.2025.109180

Marek Jašek, Darja Kubečková

{"title":"The digital twin on a residential housing in the Czech Republic on the BIM platform and its importance for the circular economy","authors":"Marek Jašek, Darja Kubečková","doi":"10.1016/j.istruc.2025.109180","DOIUrl":"10.1016/j.istruc.2025.109180","url":null,"abstract":"<div><div>The construction sector is one of the industries that produces up to around 39 % of all global carbon emissions. The society and the European Community are seeking to change this adverse situation in line with the principles of the circular economy and in line with the spirit of the \"Fit for 55\" programme document. The aim of this paper is to show through a case study of an apartment building constructed in the 1970s, how the innovative BIM platform can contribute to the reduction of pollutants and emissions, reinforce the principles of circularity and sustainable construction, in a residential building constructed in the last century, a building that currently has no digital passporting based on a building information modelling. Using BIM, a digital model of the selected housing building will be created containing information about the individual materials used in the construction at that time. The digital materials inventory developed will provide an overview of the available sources of building materials, making it easier to identify and manage them. At the same time, a discourse for a shared platform will be promoted to exchange information on the available materials, their quality status and the possibilities of their reuse in construction. The BIM platform will thus become an integral part of the circular economy of the existing buildings and will contribute to a better codification in the environment of digitalisation in the construction industry, at the same time, it will use the remaining life of structural elements to the maximum extent.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109180"},"PeriodicalIF":3.9,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123887","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

Longitudinal seismic response characteristics of large-scale subaqueous shield tunnels cross the Yangtze River 跨长江大型水下盾构隧道纵向地震响应特征

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-23 DOI: 10.1016/j.istruc.2025.109263

Bin Ruan , Yang Chen , Yipei Ye , Kai Zhao , Zhenglong Zhou , Jianxiong Miao

{"title":"Longitudinal seismic response characteristics of large-scale subaqueous shield tunnels cross the Yangtze River","authors":"Bin Ruan , Yang Chen , Yipei Ye , Kai Zhao , Zhenglong Zhou , Jianxiong Miao","doi":"10.1016/j.istruc.2025.109263","DOIUrl":"10.1016/j.istruc.2025.109263","url":null,"abstract":"<div><div>A water-riverbed coupling model is proposed for the site seismic response analysis using acoustic element to simulate the dynamic behavior of water, and a theoretical model is employed to verify the reliability of the proposed modelling method. Based on an actual tunnel project, the longitudinal seismic response characteristics of the subaqueous tunnel under different working conditions are investigated, considering the site inhomogeneity, soil dynamic nonlinearities, the tunnel spatial curvature, and the artificial boundary condition treatment. The results show: (1) The effect of overlying water on the seismic response of the site and tunnels cannot be ignored; (2) Topography and soil distribution have a significant spatial effect on the local seismic site response; (3) Overlying water significantly suppresses the vertically orientated Peak Ground Acceleration Amplification Factor (AF<sub>PGA</sub>) of the site and the width of the openings between the shield segments, and this suppression increases with increasing ground motion intensity; (4) Sudden changes in the tunnel seismic response are often located at the soft-hard soil interface, depending on the intensity of the input ground motion.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109263"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124386","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

Shear deterioration characteristics of new-to-old concrete interface in a humid environment: An atomistic investigation 湿润环境中新老混凝土界面剪切劣化特性：原子性研究

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-23 DOI: 10.1016/j.istruc.2025.109262

Huiping Huang , Tongfang Wang , Tong Guo , Mengxiang Fang , Biao Jiang , Yongming Tu , Yuanhui Ji , Chao Wang , Gabriel Sas

{"title":"Shear deterioration characteristics of new-to-old concrete interface in a humid environment: An atomistic investigation","authors":"Huiping Huang , Tongfang Wang , Tong Guo , Mengxiang Fang , Biao Jiang , Yongming Tu , Yuanhui Ji , Chao Wang , Gabriel Sas","doi":"10.1016/j.istruc.2025.109262","DOIUrl":"10.1016/j.istruc.2025.109262","url":null,"abstract":"<div><div>The interface between new and old concrete is inherently a weak point in structures. Humidity can degrade its bonding, impacting structural durability. However, the nanoscale shear behavior of this interface and its deterioration in humid conditions remain unclear. In this study, two interfacial models were developed using hydrated calcium silicate (CSH) and silicon dioxide (SiO<sub>2</sub>) as the research substrates, including CSH-a (H<sub>2</sub>O/Si=1.68)-to-CSH-b (H<sub>2</sub>O/Si=1.0) and CSH-a-to-SiO<sub>2</sub> interfaces. The effects of different interfacial water layer thicknesses (0 Å, 3 Å, and 5 Å) on the interfacial shear behavior were investigated through molecular dynamics simulation. It was discovered that the bonding properties of the CSH-a-to-CSH-b interface were superior to those of the CSH-a-to-SiO<sub>2</sub> interface. When the thickness of the interfacial water layer is 0 Å, all failure modes of the model occur within the CSH-a substrate, which has lower strength and unstable bonding energy. As the interfacial water layer thickness increases, the failure mode of the model shifts from shear failure inside the substrate to damage at the interface. Additionally, a humid environment has a negative impact on the shear strength of the interface. When the thickness of the interfacial water layer is increased from 0 Å to 3 Å, and then from 3 Å to 5 Å, the shear strength decreases by 23.7 % and 19.7 % for the CSH-a-to-CSH-b interface, and by 11.4 % and 23.1 % for the CSH-a-to-SiO<sub>2</sub> interface, respectively. The findings of this study clarify the shear behavior of the new-to-old concrete interface at the nanoscale, particularly in terms of shear deterioration characteristics in humid conditions.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109262"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116582","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

Dynamic response of air-backed steel-fiber reinforced concrete slabs subjected to underwater contact explosions 水下接触爆炸作用下空气支撑钢纤维混凝土板的动力响应

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-23 DOI: 10.1016/j.istruc.2025.109273

Yong Fan , Shipeng Xu , Guangdong Yang , Shan Liu , Shengyong Ding , Tao Zhou , Bin Tian

{"title":"Dynamic response of air-backed steel-fiber reinforced concrete slabs subjected to underwater contact explosions","authors":"Yong Fan , Shipeng Xu , Guangdong Yang , Shan Liu , Shengyong Ding , Tao Zhou , Bin Tian","doi":"10.1016/j.istruc.2025.109273","DOIUrl":"10.1016/j.istruc.2025.109273","url":null,"abstract":"<div><div>Concrete structures may be subjected to explosive loads during their lifecycle, therefore improving their blast resistance is crucial. The dynamic response of air-backed steel-fiber reinforced concrete slabs subjected to underwater contact explosions was investigated in this study. Three air-backed slabs, normal strength concrete (NSC) slab, high strength concrete (HSC) slab, and steel-fiber reinforced high strength concrete (SFRHSC) slab, were fabricated and tested under explosive loads. Numerical models of the air-backed slabs subjected to underwater contact explosions were established, and the reliability of the numerical method was verified by comparing the numerical results with the test results. Utilizing the validated model, the blast resistance of the NSC, HSC, and SFRHSC air-backed slabs against underwater contact explosions was investigated. Additionally, comprehensive investigations were conducted to explore the influences of steel fiber volume, length-diameter ratio of steel fiber, and charge weight on the resistance of the SFRHSC slabs to underwater contact explosions. The results show that the addition of steel fibers can significantly enhance the tensile strength of concrete and the flexural rigidity of the air-backed slab. The SFRHSC slab can mitigate the global deformation and dispersion of flying fragments. The optimal steel fiber volume fraction and length-diameter ratio of steel fiber is 1.5 % and 65, respectively.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109273"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116760","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

Designing for resilience: Modular timber schools for circular construction 弹性设计：用于圆形建筑的模块化木材学校

IF 3.9 2区工程技术

Structures Pub Date : 2025-05-23 DOI: 10.1016/j.istruc.2025.109041

Antiopi Koronaki , Kirsten Haggart , Simon Smith , S. Dario Marino , Darshil U. Shah , Ana Gatóo , Yelda Gin , Harry Mills , Eduardo Wiegand , Michael H. Ramage

{"title":"Designing for resilience: Modular timber schools for circular construction","authors":"Antiopi Koronaki , Kirsten Haggart , Simon Smith , S. Dario Marino , Darshil U. Shah , Ana Gatóo , Yelda Gin , Harry Mills , Eduardo Wiegand , Michael H. Ramage","doi":"10.1016/j.istruc.2025.109041","DOIUrl":"10.1016/j.istruc.2025.109041","url":null,"abstract":"<div><div>With the construction industry responsible for 37% of global greenhouse gas emissions, natural construction materials are key for the decarbonisation of the built environment. This research proposes the use of UK timber products to address school shortages through resource-efficient design and prefabrication. Building on previous government programmes, a novel design and construction system for modular, fully-demountable timber schools is proposed, the New Model School. A performance-driven design approach is followed, that simultaneously optimises material efficiency, embodied carbon, and biophilic and circularity principles. An extension to a primary school building in Cambridge, UK, is designed as a case study using homegrown timber. The results demonstrate that significant reductions in material and embodied carbon can be achieved, when compared to current practices — up to 70% per unit area. The dry construction system promotes circularity, with building components being fully-demountable and reusable. Deploying our proposal at scale would enable the UK to address school shortages on-time, using homegrown timber. Moreover, the system’s standardisation and modularity render it applicable to other programmes and regions. This research therefore proposes a new design and fabrication framework to address infrastructure shortages, promote natural construction materials and create healthy environments, while meeting environmental targets.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":"78 ","pages":"Article 109041"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124385","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