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Hidden structural information reconstruction and seismic response analysis of high‐rise residential shear wall buildings with limited structural data Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2024-08-22 Chenyu Zhang, Weiping Wen, Changhai Zhai, Yuqiu Wei, Penghao Ruan
The high‐rise residential shear wall structure is a crucial component of urban building clusters, while the limited availability of detailed structural information becomes a critical bottleneck in improving the accuracy of seismic performance assessment for high‐rise residential shear wall buildings in urban areas. Based on easily obtainable yet limited structural data at the urban scale, this paper
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Research on improving the flexural performance of alkali-activated geopolymer cemented coal gangue through layered addition of fibers J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 Shuai Pang, Jiaze Li, Feihan Xie, Gujian Wang, Henghui Fan, Kaixin Zhu
The brittle characteristics of geopolymers during failure seriously hinder their practical engineering applications. To improve the toughness of low-energy alkali-activated geopolymer cementing coal gangue (AGCCG), the flexural performance of alkali-activated geopolymer cementing coal gangue (AGCCG) was enhanced by layering polypropylene fibers. Based on DIC digital speckle technology, the four-point
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Effect of ZnAl-NO2 LDH on chloride entrapment and protection of iron reinforcement in mortar samples J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 R.S. Sampaio, C. Gomes, A.C. Bastos, M.G.S. Ferreira
Layered double hydroxides (LDHs) have gained attention in the concrete research field, appearing as prospective additives for controlling chloride attack, and as micro or nano deliverers of corrosion inhibitors. This work reports the effect of ZnAl-NO LDH on the evolution of chloride concentration in the pore solution and on the corrosion resistance of iron in mortar samples exposed to 3.5 % NaCl solution
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Performance enhancement of cement mortar with superabsorbent polymer composite internally embedded with porous ceramsite sand J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 Jin Yang, Yongpeng Liu, Jingyi Zeng, Ying Su, Fulong Wang, Xingyang He
Superabsorbent polymer (SAP), which can act as water reservoir, was an internal curing (IC) agent with great potential to reduce the shrinkage and cracking of cement-based materials. However, the volume shrinkage of SAP after water release will lead to the formation of additional voids, which will lead to a clear reduction of mechanical properties. In present work, a novel SAP composite with a rigid
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Interfacial bond-slip of horizontally embedded CFRP strips and concrete considering the effect of the groove depth-to-width ratio J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 Yigang Lv, Xianliang He, Weiwei Han, Miao Su, Bai Zhang, Jinghang Zhang, Hui Peng
Concrete structures with shallow grooving depths require minimal adjustments to accommodate horizontal near-surface-mounted (NSM) carbon fibre-reinforced polymer (CFRP) strips. This method proves advantageous in minimizing damage to reinforced concrete structures, establishing itself as an effective reinforcement technique. To delve into the interfacial performance of the horizontal CFRP strip reinforcement
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Effect of curing temperature on hydration characteristics of GGBFS-based cementless high-strength concrete J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 Yanchen Oinam, Aidarus Yonis, Younghoon Bae, Cheulkyu Lee, Sukhoon Pyo
This research examines how curing temperature affects in the development of CaO-activated cementless GGBFS high-strength concrete. Compressive strength tests were conducted on samples cured at 50 °C, 70 °C, and 90 °C for 12 h, with additional evaluation after 3 and 28 days of water curing. TGA, FT–IR, NMR, MIP, and BET analyses further investigated the microstructural evolution. Findings show that
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Experimental and numerical investigation on the in-plane performance of nail-laminated timber floor J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 Zhaozhuo Gan, Yongliang Sun, Zheng Li, Minjuan He
Existing research has shown that the nail-laminated timber (NLT) floor has the potential to achieve considerable out-of-plane flexural performance at a relatively lower cost. However, though the in-plane performance of structural floors greatly impacts the seismic resistance of the overall structure, research on the in-plane behavior of NLT floors is still insufficient. In this paper, an in-plane shear
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Attaining material circularity in recycled construction waste to produce sustainable concrete blocks for residential building applications J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 Ewald Kuoribo, Hassan Shokry, Hatem Mahmoud
Construction waste poses a major environmental problem owing to traditional building methods, resulting in a huge global waste burden that ultimately ends up in landfills. The development of sustainable methods is necessary not only to reduce environmental problems but also to encourage material circularity and promote the effective recycling and reuse of construction waste. Yet, previous research
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Designing with building-integrated photovoltaics (BIPV): A pathway to decarbonize residential buildings J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 S. Aguacil, S. Duque, S. Lufkin, E. Rey
The ambitious targets set for greenhouse gas emissions and energy efficiency by 2050 demand a critical increase of building renovation rates. This challenge is shared by most Western nations, including Europe and Switzerland, where the current annual renovation rate stands at a mere 0.6 %. In this context, designing renovation strategies using building integrated photovoltaic (BIPV) components as a
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A seismic retrofit strategy involving steel haunch and external prestressing for non-ductile reinforced concrete knee joints J. Build. Eng. (IF 6.7) Pub Date : 2024-08-22 Yogi Cahyadi, Min Jae Park, Chang-Hwan Lee
Previous studies have confirmed the vulnerability of reinforced concrete (RC) knee joints under cyclic loading, however, there remains a lack of studies on their seismic retrofitting. This study proposes a retrofit strategy aimed at enhancing the seismic performance of knee joints by acknowledging their unique behavior. The strategy involves a novel arrangement of steel plates that optimizes the effectiveness
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A comparative configuration and decision of main restrictions of a renewable energy powered campus micro grid: A case study Energy Build. (IF 6.6) Pub Date : 2024-08-22 Cansu Oğuz, Gül Nihal Güğül
Higher education institutes are representative of small cities. Availability of building level data enables categorizing the models according to load profile instead of developing one model for whole communities, which is a gap in literature.
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Understanding the role of different phases in γ-C2S based carbonatable clinkers Cem. Concr. Res. (IF 10.9) Pub Date : 2024-08-21 Canyu Lv, Zhichao Liu, Fazhou Wang, Shuguang Hu
Accelerated carbonation of carbonatable clinkers into building products is an effective way of CO utilization. However, due to insufficient understanding on the phase characteristics of carbonatable clinkers, there is still a lack of guidance on the selection and design of carbonatable clinkers. In this study, three γ-CS based carbonatable clinkers were designed and synthesized, covering the carbonation
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Influence of early thermal curing regimes on properties of ultra-high performance concrete: A review J. Build. Eng. (IF 6.7) Pub Date : 2024-08-21 Sufen Dong, Xinyu Ouyang, Doo-Yeol Yoo, Baoguo Han
Early thermal curing regimes are essential for guaranteeing the outstanding performance and increasing the productivity of ultra-high performance concrete (UHPC) by influencing the hydration of binders and microstructure of concrete. Meanwhile, the efficiency of early thermal curing is mainly determined by curing parameters and mix proportion of UHPC. Based on this, this paper provides a comprehensive
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Aluminate 2K systems in digital concrete: Process, design, chemistry, and outlook Cem. Concr. Res. (IF 10.9) Pub Date : 2024-08-20 Timothy Wangler, Yaxin Tao, Arnesh Das, Matineh Mahmoudi, Seyma Gürel, Robert J. Flatt
Digital concrete is advancing due to growing economic incentives for construction automation. Achieving more sustainable concrete construction requires carbon reduction, and digital concrete technologies enable material-saving designs. By decoupling production strength from design strength, two-component (2K) systems utilizing aluminate precipitation offer the most flexibility, allowing more sustainable
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Enhancing rubber concrete with supercritical fluid-assisted Nano-SiO2 embedding and high-temperature stirred waste rubber J. Build. Eng. (IF 6.7) Pub Date : 2024-08-20 Yuan Jing, Chunwei Zhang, Guangyi Lin, Yuanyuan Niu, Meng Zhao, Zetao Lin
Using waste rubber particles(WRP) to replace fine aggregates in producing rubber concrete promotes recycling and reduces natural sand consumption, which is crucial for sustainable resource use. Unfortunately, rubber's low rigidity and poor interface bonding with the concrete matrix cause a significant strength loss. Many have done surface treatments on the particles, yet these often result in low efficiency
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Mechanical properties, hydration behavior and shrinkage deformation of ultra-high performance concrete (UHPC) incorporating MgO expansive agent J. Build. Eng. (IF 6.7) Pub Date : 2024-08-20 Cijun Liu, Xiao Zhang, Shukai Cheng, Shunkai Li, Ming Bao, Lige Qiao
To reduce the extremely high autogenous shrinkage deformation of ultra-high performance concrete (UHPC) caused by low water-to-binder ratio and high binder materials content, this work aimed to designed and prepared low shrinkage UHPC containing MgO-based expansive agents (MEA). The effects of UHPC with different reactivity of MEA (R-MEA and S-MEA) were compared in terms of fluidity, mechanical properties
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Development and characterization of new lightweight waste-based plaster composites for building applications J. Build. Eng. (IF 6.7) Pub Date : 2024-08-20 Alicia Zaragoza-Benzal, Daniel Ferrández, Paulo Santos, Evangelina Atanes-Sánchez
The development of new environmentally friendly construction materials that incorporate waste as an alternative to traditional raw materials is becoming increasingly important and necessary for the construction sector. Gypsum plasters composites are characterised by their versatility and wide range of applications in precast construction due to their excellent technical performance and low cost. This
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Mechanical properties and corrosion mechanism of steel fiber reinforced concrete (SFRC) subjected to stray current J. Build. Eng. (IF 6.7) Pub Date : 2024-08-20 Haotian Liu, Lin Yang, Kailong Kang, Danying Gao, Guojian Liu, Yu Zhang, Yunsheng Zhang
The application of steel fiber reinforced concrete (SFRC) in electric railways shows an obvious advantage due to its excellent mechanical properties. However, stray current induced corrosion is a potential threat to SFRC. In this study, the mechanical properties evolution of SFRC suffered from the action of stray current was investigated, including the compressive strength, flexural and splitting-tensile
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Long term environmental safety evaluation of incineration fly ash and its use as admixture after freeze-thaw J. Build. Eng. (IF 6.7) Pub Date : 2024-08-20 Xiaodong Ma, Yongqi Da, Tingshu He, Fuyun Su, Renhe Yang
Extensive research has been conducted on the short-term performance of incineration fly ash resource utilization. However, research on the long-term leaching characteristics of heavy metals under external environmental conditions is limited. Therefore, the frost resistance of cement prepared with incineration fly ash as an admixture focused on the leaching characteristics of heavy metals from incineration
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Hygrothermal modeling in mass timber constructions: Recent advances and machine learning prospects J. Build. Eng. (IF 6.7) Pub Date : 2024-08-20 Sina Akhavan Shams, Hua Ge, Lin Wang
This review paper provides a comprehensive overview of hygrothermal modeling with a focus on its application in mass timber construction, a sustainable and innovative construction approach. The first part of the review investigates the recent advancements in modeling heat and moisture transfer in wood-based materials, focusing on the key factors that influence moisture transport in wood. This section
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Electrical characterization of freeze-thaw damage in saturated concrete and its interfacial transition zones J. Build. Eng. (IF 6.7) Pub Date : 2024-08-20 Juncheng Wen, Yuan Sang, Jinlin Gao, Sile Hu, Zhitao Chen, Yingzi Yang
Determining the freeze-thaw (F-T) damage of the interfacial transition zone (ITZ) is crucial to understanding the mechanism of F-T in concrete and improving its frost resistance. In this paper, the F-T damage of saturated concrete/mortar and ITZ is characterized using AC impedance spectroscopy, and the micro-mechanisms of F-T damage in cement-based materials (CBMs) are summarized. Firstly, the damage
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Implications of latent and sensible building energy loads using natural ventilation J. Build. Eng. (IF 6.7) Pub Date : 2024-08-20 Mojtaba Safdari, Kadeem Dennis, Bahram Gharabaghi, Kamran Siddiqui, Amir A. Aliabadi
Building decarbonization requires balancing energy efficiency with occupant comfort. Sensible cooling and latent loads, traditionally addressed by air conditioning, are significant contributors to energy use. This study explores an innovative approach to utilize natural ventilation through windows when outdoor conditions are favorable. The novelty of this work lies in its comprehensive consideration
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Experimental investigation on dynamic performance of mode switching in an integrated system under the summer working conditions Energy Build. (IF 6.6) Pub Date : 2024-08-20 Yuduo Li, Hang Li, Wanying Jia, Dingbiao Wang, Pan Zhao, Jiangfeng Wang
Efficient integrated diversified energy supply systems play a pivotal role in addressing current energy challenges. Especially under the summer working conditions, the efficiency is very considerable when the system operates in the refrigeration-hot water mode. However, the fluctuation of system parameters before and after dynamic mode switching exerts substantial influence on the effective integration
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ISSA-LSTM: A new data-driven method of heat load forecasting for building air conditioning Energy Build. (IF 6.6) Pub Date : 2024-08-20 Mengran Zhou, Ling Wang, Feng Hu, Ziwei Zhu, Qiqi Zhang, Weile Kong, Guangyao Zhou, Changzhen Wu, Enhan Cui
Building air conditioning heat load is a critical demand response resource, and its forecasting serves as a fundamental basis for optimizing building energy consumption control. The existing air conditioning load forecasting model suffers from reduced accuracy and stability due to the significant influence of temperature, humidity, and other factors. This paper proposes a method for building air conditioning
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How urban–rural differences and ageing affect residents’ occupancy patterns – An empirical study based on China national time use survey Energy Build. (IF 6.6) Pub Date : 2024-08-20 Xin Zhou, Jinjing Zhao, Shan Hu, Da Yan
Occupancy behavior plays a crucial role in residential community planning, building design, and energy system optimization for sustainable development, particularly in the face of climate change. Research on residential occupancy behavior often lacks comprehensive empirical data and fails to account for the diversity of influencing factors such as demographic features and urban–rural distinctions.
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Experimental and theoretical study on the shear behaviors of an innovative precast UHPC composite beams reinforced with inverted T-shaped steel J. Build. Eng. (IF 6.7) Pub Date : 2024-08-19 Xiaolong Gao, Conglin Yin, Junyun Guo, Guixiang Chen, Hairong Huang
The innovative precast composite beam consisted of reinforced UHPC beam and inner inverted T-steel shape (forming ITSRU composite beam) is proposed for the marine structures serviced in harsh environment and subjected to complicated loading conditions. The novel composite beam possesses the advantages of lightweight, high strength and ductility, enhanced durability. To study the shear behaviors of
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Recycling of magnesium oxychloride cement: Application of crushed MOC waste as a filler in the next-generation MOC composites J. Build. Eng. (IF 6.7) Pub Date : 2024-08-19 Anna-Marie Lauermannová, Ondřej Jankovský, Adéla Jiříčková, Martina Záleská, Adam Pivák, Milena Pavlíková, Zbyšek Pavlík
This study deals with magnesium oxychloride- (MOC-) based construction composites in which, a filler formed from end-of-life MOC-based composite recyclate is used as a partial or full replacement of standard quartz sand filler. The developed composites pose as a highly environmentally sustainable alternative to Portland cement (PC), which has dominated the global construction sector, largely due to
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Advances in the effects of multiple factors on the thermal performance of deep borehole heat exchangers: A systematic review J. Build. Eng. (IF 6.7) Pub Date : 2024-08-19 Jiankai Dong, Hexiang Wang, Shuai Huang, Yiqiang Jiang, Jing Liu
As a safe and efficient source of clean energy, medium-deep geothermal energy has been widely used in building heating. The medium and deep borehole heat exchanger (MDBHE) is an essential apparatus for extracting medium-depth geothermal energy, which can be classified into the medium-deep coaxial borehole heat exchanger (MDCBHE) and the medium-deep U-type borehole heat exchanger (MDUBHE). During the
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The impact of changes in daylight illuminance levels on architectural experiences in office environments using virtual reality and electroencephalogram J. Build. Eng. (IF 6.7) Pub Date : 2024-08-19 Pegah Payedar-Ardakani, Yousef Gorji-Mahlabani, Abdul Hamid Ghanbaran, Reza Ebrahimpour
This study investigates the influence of varying daylight illuminance levels on architectural experiences in a virtual office environment. Integrating subjective assessments and electroencephalogram (EEG) data, we aim to comprehensively understand how illuminance impacts emotional and neurophysiological responses. The experiment exposes participants to nine illuminance levels, ranging from 66 to 1500
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Impacts of graphene nanoribbon dispersion and stability on the mechanical and hydration properties of cement paste: Insights from surfactant-assisted ultrasonication J. Build. Eng. (IF 6.7) Pub Date : 2024-08-19 Taiyan Piao, Peiqi Li, Sumin Im, Junxing Liu, HyunKi Choi, Sungchul Bae
In this study, we aim to evaluate the different dispersion methods that affect the dispersion behavior of graphene nanoribbons (GNRs) and to conduct a contrastive analysis of the different surfactants that influence the dispersion and stability of GNRs in deionized (DI) water and alkaline solution. Moreover, we studied uniformly dispersed GNRs with respect to the hydration, mechanical properties, and
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Balcony design recommendations to enhance daylight, thermal and energy performance of mixed-mode office buildings Energy Build. (IF 6.6) Pub Date : 2024-08-19 Iris Loche, Roel Loonen, Leticia Oliveira Neves
The use of balconies in hot climates holds the potential to block direct solar radiation thus reducing energy consumption for cooling and enhancing visual comfort. However, balconies may also diminish daylight availability within the room, thereby affecting occupants’ satisfaction and wellbeing. This study aimed to provide balcony design recommendations through a parametric analysis of various combinations
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Reinforcement learning for occupant behavior modeling in public buildings: Why, what and how? J. Build. Eng. (IF 6.7) Pub Date : 2024-08-18 Hao Yu, Xiaoxiao Xu
Effective control of energy consumption in public buildings holds paramount significance for global sustainable development. However, uncertainty in occupant behavior during operational phase often leads to a substantial discrepancy between the designed and actual energy consumption. While there is existing research on occupant behavior in public buildings utilizing stochastic modeling, statistical
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Energy saving of vacuum-based membrane dehumidification with indirect evaporative cooling in a low sensible-heat-ratio building J. Build. Eng. (IF 6.7) Pub Date : 2024-08-18 Sang-Hwan Park, Seong-Yong Cheon, Hye-Jin Cho, Jae-Weon Jeong
In hot and humid climates, dehumidification generally consumes more energy than cooling, and conventional mechanical vapor compression system is not efficient for dehumidification. Vacuum-based membrane dehumidification system have been developed as a more environmentally friendly alternative for dehumidification due to non-refrigerant system and isothermal dehumidification process. In this study,
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Advancing PCM research in building efficiency: A comprehensive investigation into PCM selection and critical integration strategies J. Build. Eng. (IF 6.7) Pub Date : 2024-08-18 Abdelkoddouss El Majd, Said Sair, Hanane Ait Ousaleh, Umberto Berardi, Kaoutar Moulakhnif, Naoual Belouaggadia, Zohir Younsi, Abdeslam El Bouari
The rising global demand for solutions to enhance building energy efficiency is driven by increased cooling and heating needs in the construction sector. Addressing energy crises and sustainability issues like global warming has led to extensive research efforts aimed at improving energy efficiency and reducing greenhouse gas emissions. Phase change materials (PCMs) have garnered significant attention
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Experimental and numerical investigation of arc-shaped corrugated steel plate damper J. Build. Eng. (IF 6.7) Pub Date : 2024-08-18 Chenghao Shang, Yun Zhou, Jiale Li, Ke Jiang
Shear panel damper (SPD) is a commonly utilized hysteretic steel plate damper for energy dissipation. However, the premature buckling of the web plate of SPD has become a major issue, leading to a reduction in the strength and energy dissipation capacity of the damper. Various solutions have been proposed to address this issue, however, unfavorable factors, such as the introduction of additional residual
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Investigation of the wind loads and flow patterns of a high-rise building under twisted wind flows based on LES J. Build. Eng. (IF 6.7) Pub Date : 2024-08-18 Longfei Tang, Hongjun Liu, Chaorong Zheng
The twisted wind effect has attracted increasing attention among scholars due to its significant influence on the wind loads and wind induced responses of high-rise buildings. Nowadays, it is still challenging to simulate twisted wind flows (TWFs) with larger wind twist angles (WTAs) in the wind tunnel test. Compared to wind tunnel test limitations, the large eddy simulation (LES) offers an effective
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Investigating the impact of carbonation curing concentrations on the mechanical properties and microstructure of recycled concrete J. Build. Eng. (IF 6.7) Pub Date : 2024-08-18 Wei Zuo, Xiao Zhao, Jianglin Luo, Zixin He, Jianjun Zhao
This investigation examines the impact of different CO curing concentrations on the mechanical and microstructural properties of recycled concrete aggregates, aiming to optimize the carbonation process for enhanced practicality. Utilizing 25 recycled concrete samples, the study varied CO concentrations (20 %, 40 %, 50 %, 60 %, and 95 %) and pre-conservation durations (24–120 h), conducting tests for
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The effect of nano zinc oxide on freeze-thaw resistance of 3D-printed geopolymer mortars J. Build. Eng. (IF 6.7) Pub Date : 2024-08-18 Harun Tanyildizi, Maksut Seloglu, Ahmet Coskun
The aim of this study was to investigate the freeze-thaw resistance of 3D-printed geopolymer mortars containing nano zinc oxide (nano-ZnO). Metakaolin (MK) and fly ash (FA) were selected as binders in the geopolymer mortar. The mixes containing 0 %, 0.25 %, 0.5 %, and 0.75 % nano-ZnO were prepared. The viscosity, setting time, buildability, and flow experiments were made to determine the fresh properties
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Innovate, insulate, integrate: Embracing circular economy in innovative insulations for reduced air conditioning expenses and carbon mitigation in fly ash brick buildings Energy Build. (IF 6.6) Pub Date : 2024-08-18 Saboor Shaik, Abin Roy, Aabid Hussain Shaik, Mohammed Rehaan Chandan, Müslüm Arıcı, Kuldeep K Saxena, Tabish Alam
Global demand for energy in the construction sector has increased drastically. A substantial portion of this energy belongs to fulfilling the heating, ventilation, and air-conditioning requirements of buildings, which are essential for maintaining the well-being of people. The development of zero-energy or environmentally friendly structures is required to attain a sustainable future. Strategic design
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A simple load model based on hybrid mechanism and data-driven approach for district heating in building complex Energy Build. (IF 6.6) Pub Date : 2024-08-18 Junhong Yang, Tong Zhao, Mengbo Peng, Mianshan Cui, Junda Zhu
Accurate prediction of heating loads in district heating systems is essential for the implementation of demand-driven heating. This work presents a novel heating load prediction model that is particularly suitable for complex multi-user buildings. The input characteristics of the model are established through the heat transfer mechanism, considering factors such as the cumulative impact of outdoor
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Quantitative index for temporal and spatial patterns of occupant behavior based on VRF big data Energy Build. (IF 6.6) Pub Date : 2024-08-18 Mingyang Qian, Shan Hu, Yi Wu, Hua Liu, Da Yan
The energy consumption required to cool buildings has increased significantly because of occupant behavior. The air conditioning (AC) usage in residential buildings, particularly the part-time and part-space patterns, has a considerable impact on energy consumption. However, the part-time, part-space patterns of occupant behavior, which are characterized by complexity and diversity, present significant
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Optimization framework for daylight and thermal environment of retractable roof natatoriums based on generative adversarial network and genetic algorithm Energy Build. (IF 6.6) Pub Date : 2024-08-18 Zhongqi Yu, Xinyi Ge, Zhaoxiang Fan, Yihang Zhou, Dawei Lin
This paper proposes a framework for multi-objective optimization of indoor daylighting and thermal comfort in natatoriums with retractable roofs, using genetic algorithms and building performance simulation. The goal is to balance daylight illumination and thermal comfort under different roof opening states. Efficiency of computational fluid dynamics simulation is improved by a multi-objective optimization
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LCA and energy efficiency in buildings: Mapping more than twenty years of research Energy Build. (IF 6.6) Pub Date : 2024-08-18 F. Asdrubali, A. Fronzetti Colladon, L. Segneri, D.M. Gandola
Research on Life Cycle Assessment (LCA) is being conducted in various sectors, from analyzing building materials and components to comprehensive evaluations of entire structures. However, reviews of the existing literature have been unable to provide a comprehensive overview of research in this field, leaving scholars without a definitive guideline for future investigations. This paper aims to fill
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Cover Image, Volume 39, Issue 17 Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2024-08-17
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Automated acoustic event‐based monitoring of prestressing tendons breakage in concrete bridges Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2024-08-17 Sasan Farhadi, Mauro Corrado, Giulio Ventura
Prestressing wire breakage induced by corrosion is hazardous, especially for concrete structures subjected to severe aging factors, such as bridges. Developing an automated monitoring system for such a damage event is therefore essential for ensuring structural integrity and preventing catastrophic failures. In line with this target, a supervised deep learning–based approach is proposed to detect and
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Cover Image, Volume 39, Issue 17 Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2024-08-17
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Gradient boosting decision trees to study laboratory and field performance in pavement management Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2024-08-17 Mohammadjavad Berangi, Bernardo Mota Lontra, Kumar Anupam, Sandra Erkens, Dave Van Vliet, Almar Snippe, Mahesh Moenielal
Inconsistencies between performance data from laboratory‐prepared and field samples have been widely reported. These inconsistencies often result in inaccurate condition prediction, which leads to inefficient maintenance planning. Traditional pavement management systems (PMS) do not have the appropriate means (e.g., mechanistic solutions, extensive data handling facilities, etc.) to consider these
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Asphalt property prediction through high‐throughput molecular dynamics simulation Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2024-08-17 Meng Wu, Miaomiao Li, Zhanping You
The relationship between saturate, aromatic, resin, and asphaltene (SARA) contents and asphalt properties remains unclear. This study aimed to propose a high‐throughput molecular dynamics simulation framework and demonstrate its application in rapidly building asphalt molecular models of various SARA ratios and predicting their properties, using density as an example. Based on the framework, 400 models
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Prediction of stratified ground consolidation via a physics‐informed neural network utilizing short‐term excess pore water pressure monitoring data Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2024-08-17 Weibing Gong, Linlong Zuo, Lin Li, Hui Wang
Predicting stratified ground consolidation effectively remains a challenge in geotechnical engineering, especially when it comes to quickly and dependably determining the coefficient of consolidation () for each soil layer. This difficulty primarily stems from the time‐intensive nature of the consolidation process and the challenges in efficiently simulating this process in laboratory settings and
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Glued-in steel plate and screwed connections in Timber–Concrete Composites systems: Mechanical performance and design implications J. Build. Eng. (IF 6.7) Pub Date : 2024-08-17 Michal Zeman, Petr Sejkot, Karel Mikes, Massimo Fragiacomo, Angelo Aloisio
This paper presents a comparative study between Timber–Concrete Composite (TCC) systems with glued-in steel plates and screwed connections. The research focuses on evaluating the structural performance of these connections, with a particular focus on the innovative glued-in steel plate through full-scale four-point bending tests on floor subassemblies with a 7.5 m span, complemented by push-out tests
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Automated detection of exterior cladding material in urban area from street view images using deep learning J. Build. Eng. (IF 6.7) Pub Date : 2024-08-17 Seunghyeon Wang, Jongwon Han
Street View Images (SVIs) can be utilized in urban analysis to assess the exterior cladding materials of buildings. However, this process is labor-intensive and time-consuming, particularly when applied to extensive geographic areas. Currently, there is no automated study to streamline this manual process. This research introduces a deep learning approach suitable for image classification and demonstrates
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Study on the properties of graphene oxide cementitious grout materials and its cementing effect in reinforcing broken rock mass by grouting J. Build. Eng. (IF 6.7) Pub Date : 2024-08-17 Cheng Liao, Benhai Lin, Miao Li, Songtao Hu, Guoqiang Dai, Da Liu, Shiyuan Huang
The performance of grouting materials directly affects the reinforcement effect of fractured rock masses by grouting. This paper investigates the synergistic effect of graphene oxide and fly ash on the properties of cementitious grout materials and the cementing effect of grouting reinforcement on broken rock masses. Basic performance tests such as flowability, bleeding rate, and setting time of grout
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Three-dimensional numerical analysis of twin tunnelling in two-layered soil strata Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2024-08-17 C.W.W. Ng, A.Y.Y. Wong, A.D.F. Buenaventura, P.Y. Zhu
Tunnelling induces stress change and displacement in the ground. The excavation of a new tunnel in stratified soil can trigger different patterns of stress redistribution, which may adversely influence nearby tunnels. Research on multi-tunnel interaction has mainly been performed on the assumption of a uniform ground. The effects of different soil stratifications on tunnelling interaction remain poorly
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Green energy and rooftop innovation: Unlocking the carbon reduction potential of photovoltaic-green roofs Energy Build. (IF 6.6) Pub Date : 2024-08-17 Taoyu Chen, Zubin Ye, Kunneng Jiang, Ni Zhang, Zhiqian Lin, Qunyue Liu, Yourui Guo, He Huang
As urbanization progresses rapidly, cities encounter significant environmental and energy challenges. Photovoltaic-Green Roof (PV-GR) technology offers an innovative strategy with the potential to alleviate urban carbon emissions and resource scarcity issues. However, the carbon reduction potential of PV-GR technology remains unclear. Hence, this study aims to comprehensively assess the carbon reduction
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Enhancing the building resilience in a changing climate through a passive cooling roof: A case study in Camas (Seville, Spain) Energy Build. (IF 6.6) Pub Date : 2024-08-17 Rafael Monge Palma, Daniel Castro Medina, MCarmen Guerrero Delgado, José Sánchez Ramos, Paz Montero-Gutiérrez, Servando Álvarez Domínguez
Renovating buildings is a crucial mission for the coming decades to combat energy inefficiencies and produce a resilient building stock. The inefficient thermal envelope has significant implications for occupants, especially for families lacking the financial resources to maintain a healthy and comfortable indoor environment. In scenarios where households cannot afford or utilize HVAC systems and high
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Summer outdoor thermal comfort evaluation of urban open spaces in arid-hot climates Energy Build. (IF 6.6) Pub Date : 2024-08-17 Yuan Su, Zhirui Wu, Weijun Gao, Chanjuan Wang, Qinfeng Zhao, Dan Wang, Jie Li
Urban open space is an important place for people’s outdoor activities. Previous studies have paid little attention to outdoor comfort in arid-hot areas of China. This study focuses on the comfort evaluation of outdoor activity spaces of four different attribute sites in Shihezi City, an arid-hot region, residential (R), commercial (C), educational (E) and green square (G). Outdoor thermal environment
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Comprehensive analysis of HVAC control factors for elderly residents in hot and humid regions: A case study in Hong Kong Energy Build. (IF 6.6) Pub Date : 2024-08-17 Kai Gao, Zhixuan Lin, Rui Wang, Jie Feng, Helene Fung, Edward Ng
Occupant behavior significantly impacts energy consumption and indoor comfort through HVAC (Heating, Ventilation, and Air Conditioning) system operation. Existing behavioral models in building energy simulations mainly focus on environmental parameters, often overlooking physiological and social factors. This study introduces a multidimensional model that incorporates environmental perception, societal
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Refrigerant leakage detection in building heat pump systems based on dynamic modeling and sensitivity parameters Energy Build. (IF 6.6) Pub Date : 2024-08-17 Yanfeng Zhao, Zhao Yang, Zhaoning Hou, Shuping Zhang, Yansong Hu, Yue Shu
Refrigerant leakage, a common problem in building heat pump systems, reduces operational efficiency, increases energy consumption, and raises greenhouse gas emissions, contributing to environmental degradation and energy loss. This research developed a dynamic modeling simulation platform for building heat pump systems, focusing on Water-to-Water Heat Pumps (WWHP). The WWHP system simulation investigated
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Small data-based maintenance planning for a Tainter gate using component and system reliability Autom. Constr. (IF 9.6) Pub Date : 2024-08-16 Kuo-Wei Liao, John Thedy
This paper presents a method using small data to enhance maintenance efficiency, addressing the limitations of solely qualitative maintenance records. It involves the use of a model based on the Bayesian–Weibull first-order reliability method (BW-FORM) for component analysis and a stochastic analytic hierarchy process for system-level assessment, including fault-tree analysis and reliability-centered