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Seismic vibration mitigation of building structures with an Inertial Amplification Mechanism Enhanced Damper (IAM-D) J. Build. Eng. (IF 6.7) Pub Date : 2025-02-15
Haomin Ma, Zhibao Cheng, Zhifei Shi, Alessandro MarzaniCombining a mechanical system called the Inertial Amplification Mechanism (IAM) with the spring and the damper, this paper proposes a new passive control system, known as the Inertial Amplification Mechanism Enhanced Damper (IAM-D), for structural seismic vibration mitigation. Using the Fixed-point theory, closed-form expressions for the optimal parameters of the IAM-D are derived. Two optimization
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Study on the forming method and subgrade performance of construction waste recycled material specimen J. Build. Eng. (IF 6.7) Pub Date : 2025-02-14
Qianhui Xiao, Kaixuan Lv, Shulin Liu, Jisheng Qiu, Yan WangTo study the internal mechanisms of the mechanical properties of construction waste recycled material (CWRM) as subgrade fill, this paper conducts compaction tests to analyze the impact of two forming methods (heavy compaction and vibration) on maximum dry density curves and determines the optimal forming method based on particle fragmentation indicators. The feasibility of CWRM as a subgrade fill
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Evaluation of seismic performance of traditional heavy timber frames with different types of column foot joints J. Build. Eng. (IF 6.7) Pub Date : 2025-02-12
Ya-Jie Wu, Xi-Yang Zhang, Qi-Fang Xie, Li-Peng ZhangThis study evaluates the seismic performance of traditional heavy timber frames with different types of column foot joints. First, scaled stone-supported column foot joints (SCFJs) and timber beam-supported column foot joints (TCFJs) were reversed cyclically tested, and their rotational behavior was characterized. Second, the lateral performance of full-size traditional heavy frames with different
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The WELL Building Standard: A literature review and bibliometric analysis of a nascent field J. Build. Eng. (IF 6.7) Pub Date : 2025-02-12
Tejas Kokatnur, Fatima Faris, Burak Gunay, William O'Brien, Elie AzarThe WELL Building Standard is a voluntary rating system developed in 2014 that aims to support, maintain, and promote occupant health and well-being in buildings. While studies are increasingly covering WELL's implementation in buildings, the literature currently lacks systematic review efforts to evaluate the WELL standard in the academic literature, understand its evolution and previous trends, and
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Probabilistic assessment of progressive collapse resistance in RC slab-incorporated frame structures: Accounting for slab effects J. Build. Eng. (IF 6.7) Pub Date : 2025-02-12
Yu Jin, Xiaohui Yu, Bing LiThe susceptibility of RC slab-incorporated frame structures to progressive collapse necessitates robust methods for evaluating inherent structural uncertainties. This study employs three-dimensional high-fidelity simulations to investigate the uncertainty and sensitivity of slab-incorporated frame structures, further performing probabilistic assessments of slab effects on load capacity. Nineteen uncertainty
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Multi-objective optimization study of three-phase intrinsic self-sensing concrete conductive mix proportion J. Build. Eng. (IF 6.7) Pub Date : 2025-02-12
Xinru Tian, Shaowei Hu, Xiang Xue, Hao QiIn order to prepare a three-phase intrinsic self-sensing concrete with both compressive strength and sensing performance, the Box-Behnken experimental design method in response surface methodology (RSM) was adopted. The macroscopic, microscopic and nanoscale dosages of steel fibers, carbon fibers and nanocarbon black as conductive phases were taken as the influencing factors, and a prediction model
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A new multiaxial fatigue life prediction method considering mean stress effects based on MWCM J. Build. Eng. (IF 6.7) Pub Date : 2025-02-12
Shuaiyu Li, Yuxiang Li, Wenyuan ZhangThe study presents an innovative model for predicting the multiaxial fatigue life, which incorporates the effects of mean stress on predictions for finite life cycles. Moreover, it provides estimates of durability under non-proportional loading scenarios, necessitating solely the use of data from uniaxial tension and torsion tests. Building upon the Modified Wöhler Curve Method (MWCM), the model addresses
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Development of seismic fragility functions for close-spaced reinforced masonry shear walls J. Build. Eng. (IF 6.7) Pub Date : 2025-02-12
Seyed Meghdad Ghaseminia, Tatheer Zahra, Hadi Eslamnia, Julian Thamboo, Hossein Derakhshan, David P. ThambiratnamFragility functions for fully grouted reinforced masonry (RM) walls under in-plane cyclic loading conditions have been systematically developed in this study. Despite the structural advantages of RM over unreinforced masonry, such as increased strength and ductility, fragility assessments considering various damage states under seismic loads have not been adequately investigated. This study bridges
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Preparation and performance investigation of carbonation curing lightweight calcium carbide slag cement-based materials J. Build. Eng. (IF 6.7) Pub Date : 2025-02-12
Ling Qin, Junyi Yang, Fulong Gao, Xiaolong Qi, Xingtai Mao, Ditao Niu, Hui Wang, Jiuwen Bao, Bingbing Guo, Linnv LvTo address both the environmental concerns stemming from Portland cement production and the challenges in managing agricultural/solid waste disposal, this paper presents an innovative lightweight construction material that integrates raw rice husk and foam bubbles into carbonation-cured Portland cement-calcium carbide slag matrix. An exhaustive evaluation has been conducted on the bulk density, compressive
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Coupling effect of silica fume and steel fiber on the mechanical properties and microstructures of alkali-activated slag recycled aggregate concrete J. Build. Eng. (IF 6.7) Pub Date : 2025-02-12
Biao Li, Zilong Qin, Nana Song, Yang Li, Jin Zhang, Songbo WangAs a low-carbon and sustainable high performance building material, steel fiber reinforced alkali-activated recycled aggregate concrete (SFR-AARAC) made with industrial wastes (e.g., slag) and recycled aggregate (RA) has gained an increasing attention. However, weak regions and interfacial transition zones (ITZs) in concrete significantly affect its properties. In this work, silica fume was incorporated
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Optimization of a hybrid photovoltaic/thermal-ground source heat pump system using artificial neural networks and multi-objective genetic algorithms J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Ali Andalibi, Mohammad Safarzadeh, Seyed Mohammad Jafar Sobhani, Hadi PasdarshahriThe current study focuses on determining the optimal operating conditions of a cycle using multi-objective genetic algorithms; this cycle harnesses energy from the sun and the ground to supply a multi-zone and large sports and administrative complex. The cycle is designed to incorporate various control scenarios; numerous decision variables, some of which are related to these control scenarios, are
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Towards decarbonization in the building industry: Understanding the hydration mechanism of cementitious binders with the incorporation of coal bottom ash J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Ervin Shan Khai Tiu, Sudharshan N. Raman, Daniel Kong, Massoud SofiCoal bottom ash (CBA) is often disposed of in ash ponds or landfills, creating environmental challenges. While its use in concrete has been explored, investigation of its application in cement production, a key aspect of decarbonizing the building industry, remains limited. This study discusses the hydration mechanism of cementitious binders incorporating CBA to facilitate its feasible application
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Thermoeconomic optimization of combined cooling, heating, and power (CCHP) systems for building energy efficiency using compression and ejector refrigeration cycles J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Seyed Ali Naghibi Fard, Mahdi Deymi-Dashtebayaz, Sobhan GhorbaniIt is necessary to develop the efficiency of combined cooling, heating, and power systems to save energy and reduce operational costs for both residential and commercial buildings. The system is crucial for ensuring optimum HVAC performance, reusing waste heat, and embracing energy-conscious construction practices. This paper presents a new hybrid CCHP system coupling ejector refrigeration cycle (ERC)
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Analyzing the impact of design factors on external walls in lightweight modular construction based on life-cycle analysis: Energy, economic, and environmental trade-offs J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Yan Hu, Zhengtao Ai, Guoqiang Zhang, Jie Zong, Zhengxuan LiuOne significant challenge in lightweight modular integrated construction (MIC) is to determine the optimal performance of external wall to minimize life-cycle energy consumption, economic costs, and environmental impact (3E). This study compares 3E-objective and single-objective optimization methods for determining the optimal thickness of MIC across five distinct climatic zones in China. Additionally
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A review of building technology solutions and their influence on indoor environmental quality in the healthy building movement J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Hailin Zheng, Dadi Zhang, Marcel Schweiker, Marcel LoomansThe healthy building movement is increasingly recognized for placing occupant health at the forefront, distinguishing it from green and sustainable building concepts, which primarily focus on environmental impact. This review synthesizes existing research on building technology solutions that contribute to the healthy building movement by promoting indoor environmental quality (IEQ) and health in homes
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Porous diatomite promotes lightweight and low-carbon concrete 3D printing: An exploratory study J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Qiang Liu, Quan Jiang, Herui Zhao, Yang Yu, Tengfei ZhaoCompared to traditional concrete formwork casting, cement-based 3D printing offers significant advantages in environmental friendliness, economy, and production efficiency. Lightweight concrete (LWC) 3D printing materials have broad prospects in the field of additive manufacturing. However, the currently developed LWC 3D printing materials generally have high costs and complex preparation process.
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Parametric assessment of a building-integrated PV/T system with a Nanofluid/NEPCM spectral splitter J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Jaber Aboueian, Amin Shahsavar, Hamid Reza Askarifard JahromiThis study aims to inspect the energetic and exergetic performance of a hybrid system involving a heat exchanger and a building-integrated concentrating photovoltaic/thermal (CPV/T) system equipped with a spectral splitting unit. The used spectral unit is a combination of glycerol/silver nanofluid (NF) and dotriacontane/gold nano-enhanced phase change material (NEPCM), which are used as spectral splitter
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Dynamic fracture of high-strength concrete based on 3D discrete element rate-dependent model J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Fengchen Li, J.L. Feng, Xin ChenThis research presents a novel 3D discrete element model incorporating mesostructure, rate-dependence, and a Poynting–Thomson rheological model within a flat-joint framework to accurately simulate the failure behavior of high-strength concrete under dynamic loading. The model, implemented in the open-source MUSEN platform, leverages CPU–GPU parallel computing for efficient simulations. A rate-dependent
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Portable measurement system for modal identification using synchronized smartphones J. Build. Eng. (IF 6.7) Pub Date : 2025-02-11
Sang Geun Bae, Jewoo Choi, Hyo Seon ParkThe advancement of smartphone sensors has considerably impacted existing wired and wireless sensor network systems, prompting various studies in the field of structural health monitoring (SHM). Based on the analysis of 40 prior studies on SHM (Structural Health Monitoring) using smartphones, it was found that the time synchronization of smartphones with different time stamps is quite challenging. As
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Real-time estimation method for horizontal displacement of high-rise buildings based on fusion of inclination and acceleration monitoring data J. Build. Eng. (IF 6.7) Pub Date : 2025-02-10
Jiayi Zheng, Wei Lu, Weihua Hu, Jun TengReal-time monitoring and evaluation of the dynamic displacement of high-rise buildings is an urgent engineering problem that needs to be solved. The lateral displacement of high-rise buildings under horizontal loads is of great significance for evaluating their stiffness characteristics, deformation capacity, and service safety. This article proposes a real-time estimation method for horizontal displacement
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Pull-out strength of cast-in versus post-installed connectors in thin ultra-high performance concrete panels with polyoxymethylene fibers J. Build. Eng. (IF 6.7) Pub Date : 2025-02-10
Hoda Osman, Amir FamUltra-High Performance Concrete (UHPC) with polyoxymethylene (POM) fibers has emerged as an alternative to conventional concrete. Because of its superior strength and durability it has the potential to produce very thin precast panels and insulated sandwich panels for walls and for flooring and roofing applications. These panels offer great advantages such as lightweight, fire resistance and ease of
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Experimental and numerical investigation on seismic performance of an innovative steel-concrete composite shear wall J. Build. Eng. (IF 6.7) Pub Date : 2025-02-10
Si-Xian Zhang, Jin-Hui Luo, Guo-Qiang Li, Xin-Jie Li, Yun-Long Zhong, Yan-Tao XueAn innovative composite shear wall named rectangular steel tube-corrugated steel plate concrete-filled composite shear wall (STCPCW) is proposed in this paper. The STCPCW consists of a prefabricated steel case and concrete infill. The prefabricated steel case is constructed from rectangular steel tubes, corrugated steel plates (CSPs) with horizontal waveforms, reinforcement and tie bolts, which can
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Daylighting performance evaluation in tropical lecture rooms: A comparative analysis of static and climate-based metrics J. Build. Eng. (IF 6.7) Pub Date : 2025-02-10
Edidiong Ukpong, Francis O. Uzuegbunam, Eziyi O. Ibem, Emmanuel UdomiayePressing global concerns for sustainability and human wellbeing drive innovation in architectural design, with daylighting emerging as a key strategy to enhance visual comfort, energy efficiency, and user wellbeing. However, its impact on lecture room performance in tropical zones, characterized by dynamic seasonal variations and high global illuminance, remains relatively unexplored. This study presents
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Study of interior hygrometry profiles for the hygrothermal assessment of social housing envelopes in humid temperate climates J. Build. Eng. (IF 6.7) Pub Date : 2025-02-10
Roberto Arriagada-Bustos, Ariel Bobadilla-Moreno, Carlos Rubio-Bellido, Alexis Pérez-FargalloThe building sector has focused on energy efficiency to promote sustainable development. However, incorporating energy efficiency measures in buildings usually affects their hygrothermal performance and can cause condensation and mold growth in their envelopes. These phenomena are related to the indoor climate, the enclosure setup, and the outdoor climate, so properly characterizing these parameters
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Unidirectional shaking table test and nonlinear analysis on a novel viscoelastic bio-inspired multi-dimensional vibration isolation device J. Build. Eng. (IF 6.7) Pub Date : 2025-02-09
Zhen-Hua He, Zhao-Dong Xu, Wen-Da Wang, Jian-Yang Xue, Chen Zhao, Yong-Kang HouThe vibration isolation technique has played important role in field of mitigating seismic hazard of building construction due to its easy application, low cos, and high effect. Nevertheless, the weak multi-dimensional isolation performance and tensile ability limit the engineering application of the isolator, and the influence of coupling nonlinear characteristics caused by geometric and material
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Simulation of the spatiotemporal distribution of emitted droplets during air-powder-polishing and ultrasonic scaling J. Build. Eng. (IF 6.7) Pub Date : 2025-02-09
Chaojie Xing, Zhengtao Ai, Cheuk Ming Mak, Hai Ming WongThe dispersion characteristics of droplets during ultrasonic scaling and air-powder-polishing have not been clearly revealed. In this study, the Computational Fluid Dynamics (CFD) simulation method was used to investigate the spatiotemporal distribution characteristics of droplets using both the original method and the simplified method. In the original method, incisors and side teeth in the maxillary
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A damage assessment method for masonry structures based on multi scale channel shuffle dilated convolution and ReZero-Transformer J. Build. Eng. (IF 6.7) Pub Date : 2025-02-09
Zhongliang Zou, Shuzhen Yang, Mansheng Wang, Bo SongAssessing damage status and determining applicability grade of masonry structures needs to conduct extensive on-site testing and evaluation. Traditional methodologies are time consuming and laborious, which is disadvantageous for post disaster rescue, recover and reconstruction. The aim of this research is to propose an efficient assessment method of damage and applicability grade for large quantities
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Research on synergistic development paths of intelligent construction and construction industrialization - A case study of Shenyang, China J. Build. Eng. (IF 6.7) Pub Date : 2025-02-09
Jiangxuan Wu, Lihong Li, Binglu TengChina is experiencing a new round of changes in the construction industry from information technology, and many policies related to the synergistic development of intelligent construction and construction industrialization (SDICCI) have been proposed immediately. However, there are barriers to information and management approaches, so this study is dedicated to analyzing the key paths of SDICCI. Based
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Study of seismic performance of reinforced concrete rocking columns J. Build. Eng. (IF 6.7) Pub Date : 2025-02-09
Fanfu Bu, Chun Jiang, Xilin Lu, Huanjun JiangA type of reinforced concrete (RC) rocking columns using steel plates as the end protection was proposed in this study. Five specimens including one conventional RC column and four RC rocking columns were tested under cyclic loading. The experimental results show that compared with conventional RC columns, the load-bearing capacity and energy dissipation capacity of RC rocking columns decrease. However
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Corrigendum to “Seismic strengthening of heritage masonry buildings using fiber-reinforced paint: Numerical validation and shake table testing for enhanced energy dissipation and safety” [J. Build. Eng. 101 (2025) 111824] J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08
Phyo Min Htet, Ali Ejaz, Chaitanya Krishna Gadagamma, Qudeer Hussain, Panumas Saingam, Wasim Khaliq, Gritsada Sua-iam, Burachat Chatveera, Suniti Suparp -
Insights into the role of aggregate shape in enhancing rheology and reducing cement usage in concrete mixture design J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08
Zhen Jiang, Yizhong Mao, Dengwu Jiao, Xiang Hu, Caijun ShiAdvancements in crushing techniques have significantly improved the particle shape of crushed stone, which should have a positive impact on concrete properties. This study employs micro-CT to compare the particle shapes of crushed stone and gravel, followed by the preparation of concrete having optimized flow properties with water-cement ratios of 0.4 and 0.5, incorporating varying excess paste thicknesses
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Experimental study on enhancing the waterproof and moisture-proof performance of foam open-cell reed-based insulation material J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08
Hongqiang Li, Tiantian Liu, Yizhe Peng, Chenghan Cai, Lifang Liu, Shuang WangIn recent years, biomass insulation material are in high attention in the construction field due to their light, low thermal conductivity, good sound insulation. However, biomass insulation materials are vulnerable to water owing to porous structure. The high water/moisture absorption tends to increase the structure burden and make the weathering resistance deterioration. Therefore, it is significant
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Assessment of the efficiency of shower wastewater heat exchangers using machine learning-based methods J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08
Stec Agnieszka, Kamil PochwatWastewater, especially discharged from the shower, can be a valuable source of energy in buildings used to heat water. However, determining the efficiency of drain water heat recovery (DWHR) exchangers requires long-term laboratory tests. Taking this into account, research was carried out for two different exchangers: horizontal and vertical. The aim of this study was to assess the possibility of using
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Effects of multi-sized glass fiber-reinforced polymer waste on hydration and mechanical properties of cement-based materials J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08
Zhizong Tian, Qianqian Wang, Shuguang Hou, Xiaodong ShenUtilization of recycled glass fiber reinforced polymers (GFRP) is challenging due to their non-degradability and complex composition. This work explored an application route to produce supplementary cementitious material (SCM) and fine aggregate (FA) with mechanical processed GFRP wastes. A novel GFRP-Sand composite fine aggregate (GSCA) was developed with a combination progress of multi-particle size
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Improved mechanical and thermal properties of sustainable ultra-high performance geopolymer concrete with cellulose nanofibres J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08
Yuekai Xie, Chenman Wang, Yingying Guo, Hanwen Cui, Jianfeng XueAlthough the application of the cellulose nanofibre (CNF) on the mechanical performance of conventional ultra-high performance concrete (UHPC) and geopolymer materials have been extensively studied, the effects of CNF on the mechanical and thermal behaviour of ultra-high performance geopolymer concrete (UHPGC) have not been well understood. This paper presents a laboratory study on the mechanical properties
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Mechanical and environmental properties of limestone calcined coal gangue based cementitious materials J. Build. Eng. (IF 6.7) Pub Date : 2025-02-08
Junfei Zhang, Xiaoli Huang, Ling Wang, Moncef L. Nehdi, Gulbostan Tursun, Lei ZhangThe cement industry is one of the major sources of global carbon dioxide (CO₂) emissions, and sustainable solutions are urgently needed to reduce its environmental impact. This study focuses on the synergistic effects of thermally activated coal gangue powder (ACGP) and limestone powder (LSP) in enhancing the mechanical properties and microstructure of composite cementitious materials. Experimental
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Quantifying the effect of irradiance-based blind control occupant behaviour models (BC-OBMs) on daylighting performance and energy consumption in office buildings J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Tarun Verma, Padmanaban GopalakrishnanBlind use patterns significantly impact visual comfort and energy efficiency in office buildings. Accurately capturing this impact necessitates the integration of blind control occupant behaviour models (BC-OBMs) within building performance simulations (BPS) during the design process. However, incorporating BC-OBMs into BPS presents challenges related to transferability, predictive accuracy, and the
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Comparison of vulnerability models for masonry building portfolios considering different macroseismic intensity scales J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Si-Qi Li, Can Zhang, Lin-Lin Zheng, Peng-Chi Chen, Peng-Fei QinMacroseismic intensity is a long-standing seismic intensity scale used to assess the seismic damage status of regional engineering structures. However, there are differences in the evaluation criteria for different macroseismic intensity scales, resulting in varying assessment results for the damage status of engineering structures. To analyse the quantitative differences between typical macroseismic
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The effect of the preferred illuminance on dynamic features of the brain activity during reading J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Jing Shi, Nan Zhang, Wenhao Wang, Menglin Zhang, Gangwei Cai, Weijun GaoThe light environment constitutes an important facet of indoor environmental quality, intimately intertwined with the well-being and productivity of occupants. Electroencephalogram (EEG) offers distinct advantages in assessing preferred illuminance over subjective evaluations. A correlation model was constructed using EEG dynamic features to clarify the connection between preferred illuminance and
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Design and characterisation of geothermal and solar multi-energy complementary heating system J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Jie Zhang, Jinrong Tang, Chen Niu, Zhiqiang ChenSolar-geothermal multi-energy system (MES) can give full play to energy advantages and are one of the most important ways to solve the instability of renewable energy heating. However, the current assessment methods for MES are limited and single. This study proposes a method for evaluating MES based on environmental and economic benefits. First, the laying ratio of solar panels to building roof area
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Cooling performance evaluation of a novel radiant ceiling panel containing phase change material (PCM) J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Dragos-Ioan Bogatu, Jun Shinoda, Bjarne W. Olesen, Ongun B. KazanciThis study analysed the behaviour and cooling performance of a novel ceiling panel with macro-encapsulated phase change material (PCM) and active discharge under different cooling loads. Unlike other constructions, the investigated panel features a pipe profile embedded and in direct contact with a thin PCM layer. A method to address modelling constraints was presented, aiding the development of alternative
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Thermal characteristics of novel convection-radiation coupling terminal based on energy cascade utilization for intermittent heating J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Jianjuan Yuan, Zhiyu Ma, Xiangfei Kong, Man Fan, Zhao HanWith the increasing energy consumption of heating, intermittent heating is widely used as an energy-saving heating method. Unfortunately, radiator, fan coil and radiant panel are the main heating terminals, which can't fully meet the requirements of rapid response and high thermal inertia and indoor thermal comfort for intermittent heating. In this paper, based on the ideal of energy cascade utilization
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Analysis of thermal environment, energy consumption changing patterns, and influencing factors in large spaces based on dynamic co-simulation platform J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Haitao Zhao, Xiaofang Shan, Qinli Deng, Wei-Zhen LuIn large spaces, uneven temperature distribution not only affects thermal comfort but also impacts the reliability of energy consumption justification. However, the dynamic variations of thermal environment and energy consumption during the operation of air conditioning systems are paid less attention and rarely studied. To address this issue, in this study, a dynamic co-simulation platform is established
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Flow characteristics of thermal plumes above rectangular heat sources with different aspect ratios J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Changqing Yang, Yuxi Jin, Na Lu, Jing Xiong, Shengrui Yu, Angui LiRectangular plane heat sources are commonly found in industrial plants, where thermal plumes generated by heat sources have an important influence on ventilation. This study examines how the flow characteristics of thermal plumes vary above rectangular plane heat sources with different aspect ratios, where the aspect ratio is defined as the ratio of the short side to the long side of the heat source
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Shaking table test and seismic evaluation of cross-layer installed cable-bracing displacement amplification damped system J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Wenfu He, Yuxiang Zhou, Hao Xu, Feng Shang, Wenguang LiuThis paper proposes a cross-layer installed cable-bracing displacement amplification damped system (CDADS), which combines the cable system with the displacement amplification damping system (DADS). A simplified and mechanical model of the CDADS was established. The damping force and energy dissipation equations for the CDADS were derived. A shaking table test was performed with four models: uncontrolled
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The influence of fire, sound, and vibration performance requirements on embodied carbon in the design of concrete floors J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Jonathan M. Broyles, Ryan L. Solnosky, Nathan C. BrownStructural engineers can reduce the embodied carbon (EC) in building design, often by minimizing structural material. Concrete floors contain considerable EC and are thus the subject of ongoing research. Previous studies that have evaluated the EC for different concrete floor systems often exclude important design considerations such as fire resistance, acoustics, and vibrations. In response, this
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Mechanism model combined with deep learning models for accurate prediction of indoor air pollution in residential and commercial spaces J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Ting Shi, Kai Wang, Wu Yang, Peihao Wang, Yunpeng Ao, Yuling Zhang, Junfei QiaoThe risks associated with particulate matter on human body are not limited to outdoor environments only. Research showed that outdoor particulate matter can infiltrate inside spaces through various processes, such as window and door diffusion, as well as wall penetration. Majority of the neural network based existing methods for predicting indoor air quality are opaque models lacking clear physical
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Multi-step fusion model for predicting indoor temperature in residential buildings based on attention mechanism and neural network J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Guozhong Zheng, Ruilin Jia, Wenwen Yi, Xinru YueIndoor temperature prediction is vital in HVAC system control, ensuring thermal comfort and energy efficiency. This study aims to propose a multi-step indoor temperature prediction model. Firstly, correlations between indoor temperature and environmental parameters are analyzed to select input parameters. Secondly, input parameters are processed by a convolutional neural network (CNN) and bi-directional
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Temperature characteristics of SiO2 aerogels and PCM filled windows under long-period fire load J. Build. Eng. (IF 6.7) Pub Date : 2025-02-07
Enmin Fu, Lingyong Ma, Wei Jiang, Ruohan Shen, Yang Chen, Qing Li, Zhipeng Zhong, Dong Li, Boyu TianThis study systematically investigates the thermal behavior and fire performance of triple-glazed windows filled with SiO₂ aerogel and PCM under prolonged fire loading (3600s). Numerical simulations were conducted to analyze the effects of various interlayer combinations (PCM, air, SiO₂ aerogel) on surface temperature changes and heat transfer. The fire resistance of four structural combinations (P + A
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Promoting decarbonisation in the construction of new buildings: A strategy to calculate the Embodied Carbon Footprint J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Ana Karolina Santos, Victor M. Ferreira, Ana Cláudia DiasBuilding construction significantly contributes to global greenhouse gas emissions, with embodied carbon playing a critical role in the environmental impact of new buildings. This research addresses the pressing need to reduce embodied carbon emissions by developing an integrated strategy to assess and compare the embodied carbon footprint of building projects. The proposed methodology, organized into
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Flexural behavior of RC continuous beams strengthened with strain hardening cementitious composites J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Ahmed Almaadawy, Srishti Banerji, R.A. Hawileh, Magdy I. Salama, Nageh N. Meleka, Ghada M. HekalThis study investigates the behavior of reinforced concrete (RC) continuous beams externally strengthened with strain-hardening cementitious composites (SHCC) layers. Although other techniques for strengthening continuous RC beams have been studied, limited attention has been given to the use of SHCC in these applications, particularly with discontinuities at the mid-support due to column heads. By
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Study on the healing properties of Engineered Geopolymer Composites (EGC) with external application of nano-silica solution J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Zhen Yuan, Jinhui Tang, Wangkun Ma, Cong LuEngineered Geopolymer Composites (EGC) possess the capability to control cracks below 100 μm. Previous research, however, has indicated that cracks exceeding 50 μm fail to fully self-heal, which may exacerbate the precipitation of unreacted alkali activators at the crack site, further reducing the mechanical performance. Building on the nucleation site effect of nano-silica and its ability to react
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Virtual reality in lighting design: Insights from academia and an international survey among professionals J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Michelangelo Scorpio, Adam Bladowski, David Geisler-Moroder, Justyna Martyniuk-Pęczek, Sergio Sibilio, Rainer Pfluger, Natalia SokółThe potential of virtual reality (VR) in lighting design remains underexplored, despite its growing technological advancements. This study aims to evaluate VR's applicability in lighting design by investigating its benefits, limitations, and adoption among professionals and researchers. A comprehensive literature review highlights VR's capabilities in replicating light distribution and its impact on
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Seismic behaviour and restoring force model of a novel prefabricated element precast concrete frame J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Xiaoyong Lv, Zhiwu Yu, Jian Yin, Peng LiuPrefabricated concrete (PC) frame structures have been widely applied in recent years for numerous advantages, but there are still problems such as the structural integrity and seismic performance may be weakened due to some connection positions are arranged in areas with high force. Therefore, a novel prefabricated element precast concrete frame (PEPCF) is proposed in this study, and the corresponding
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Corrigendum to “A methodology for sky-space-ground integrated remote sensing monitoring: A digital twin framework for multi-source Data-BIM integration in residential quality monitoring” [J. Build. Eng. 102 (2025) 11976] J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Ming Guo, Xiangling Wu, Huihui Qi, Ying Zhang, Jiangjihong Chen, Yaxuan Wei, Xiaolan Zhang, Xiaoke Shang -
Effect of rubber granule size range and morphology on the compressive strength of rubber mortar J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Ze Li, Hao Jin, Boxu SunRubber mortar is increasingly utilized in transportation, construction, and repair projects, where compressive strength serves as a critical performance indicator. The size range and morphology of rubber granules significantly influence the compressive strength of rubber mortar. This paper employs a close-up photogrammetry technique to capture scanned images of waste rubber granules and to measure
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Development and properties of lightweight concrete based on core-shell cold-bonded lightweight aggregate using epoxy resin as interfacial enhancer J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Zhenyu Huang, Yu Zhou, Lijie ChenDue to the escalating shortage of construction materials and natural aggregate production, the present study aims to produce lightweight concrete (LWC) utilizing a novel artificial core-shell cold-bonded lightweight aggregate (CCLA). The newly developed CCLAs employ an expanded polystyrene (EPS) waste core encapsulated by a cementitious shell, leveraging epoxy resin as interfacial enhancer for reducing
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A review of the repair measures for reinforced concrete affected by chloride ion corrosion J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Penglong Zhao, Zheng Si, Lingzhi Huang, Yanlan He, Xiaorui Liu, Yulong ZhangChloride ion corrosion significantly impacts concrete structures and will lead to the loss of structural load-bearing capacity and service life. This article starts with the corrosion mechanism of chloride on reinforced concrete and reviews and researches the repair measures of reinforced concrete affected by chloride ion corrosion. Based on the mechanism of action and operating characteristics, this
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Energy consumption prediction for office buildings: Performance evaluation and application of ensemble machine learning techniques J. Build. Eng. (IF 6.7) Pub Date : 2025-02-06
Chao Ma, Song Pan, Tong Cui, Yiqiao Liu, Ying Cui, Haoyu Wang, Taocheng WanAccurate forecasting and evaluation of building energy consumption are paramount for enhancing energy efficiency, reducing operational costs, and mitigating environmental impacts. Effective energy management relies on precise predictions to inform decision-making and optimize resource allocation. Although promising predictive capabilities have been demonstrated by ensemble models in this domain, their
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Influence of CaO/SiO2 on the performance of alkali-activated slag cement J. Build. Eng. (IF 6.7) Pub Date : 2025-02-05
Mengmeng Li, Juan He, Wenbin Bai, Guochen Sang, Xiulong Chang, Xuefeng SongThe properties of alkali-activated slag (AAS) cement were mainly affected by granulated blast furnace slag (GBFS) and activators. Due to the difference of raw materials and production technology, the composition of GBFS discharged from different steel plants and periods fluctuated greatly. The ratio of CaO/SiO2 (C/S) showed a great influence on the performance of AAS cement, in addition, even if the