-
Outpatient oncology settings: the distinctive contribution of supportive design to patient experience and wellbeing Build. Res. Inf. (IF 3.9) Pub Date : 2024-04-29 Ahmed H. Sadek, Julie Willis, Lynette Joubert, Bhaumik Shah, Mayada Fawzy, David Speakman
The concept of patient-centred care is increasingly shaping healthcare practices, particularly within oncology settings. Its implications extend to a hospital's constructed environment and how it i...
-
Evaluation of the indoor environment in a historic museum during the COVID-19 lockdown in Northwest England Build. Res. Inf. (IF 3.9) Pub Date : 2024-04-27 Sura Al-Maiyah, D. Brett Martinson, Hisham Elkadi
Monitoring the quality of the indoor environment is a practice commonly adopted by museums as part of operational risk management. Recorded environmental data are often used to assess the safety of...
-
A smoothness control method for kilometer‐span railway bridges with analysis of track characteristics Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-30 Yuxiao Zhang, Jin Shi, Shehui Tan, Yingjie Wang
Significant dynamic deformations during the operation of kilometer‐span high‐speed railway bridges adversely affect track maintenance. This paper proposes a three‐stage smoothness control method based on a comprehensive analysis of track alignment characteristics to address this issue. In the method, historical measured data are grouped into multicategories, and reference alignments for each category
-
A dynamic graph deep learning model with multivariate empirical mode decomposition for network‐wide metro passenger flow prediction Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-30 Hao Huang, Jiannan Mao, Leilei Kang, Weike Lu, Sijia Zhang, Lan Liu
Network‐wide short‐term passenger flow prediction is critical for the operation and management of metro systems. However, it is challenging due to the inherent non‐stationarity, nonlinearity, and spatial–temporal dependencies within passenger flow. To tackle these challenges, this paper introduces a hybrid model called multi‐scale dynamic propagation spatial–temporal network (MSDPSTN). Specifically
-
Bonding properties of composite interface composed of concrete/magnesium phosphate cement-based ECC/CFRP plate J. Build. Eng. (IF 6.4) Pub Date : 2024-04-30 Shuang Nie, Aofei Guo, Hu Feng, Qunfang Hu, Hao Huang
To prevent premature debonding of fiber reinforced polymer (FRP) from concrete surface and achieve rapid repair of flexural members, magnesium phosphate cement-based ECC (MPC-ECC) with many advantages of early strength, multi-cracking and steady-state cracking was combined with carbon fiber reinforced polymer (CFRP) to explore the feasibility of strengthening flexural members. The bonding properties
-
Applicability of electrochemical chloride extraction to concrete made with different binders J. Build. Eng. (IF 6.4) Pub Date : 2024-04-30 Thamara Tofeti Lima
The present study concerns the application of electrochemical chloride extraction to concrete designed with partial replacements from different binders, namely ground granulated blast furnace (GGBS), pulverized fly ash (PFA) and Silica Fume (SF), aiming to attend the need of corrosion repair for structures made in the more recent years. Concrete specimens were used to assess characteristics such as
-
Experimental study on the preparation of wood aggregate recycled concrete using waste wood and recycled fine aggregate from construction and demolition wastes J. Build. Eng. (IF 6.4) Pub Date : 2024-04-30 Peihan Wang, Chenyang Xu, Qiuyi Li, Liang Wang, Yuanxin Guo
As a renewable resource, wood has the advantages of a high strength-weight ratio, high yield and excellent thermal insulation. Meanwhile, the resource utilization of large quantities of waste wood, waste furniture and mixed wood generated by the demolition of old houses and the removal of building formwork are basically in a blank state. Therefore, in this study, construction solid waste—waste wood
-
Performance study of new lightweight cementitious composites with glass beads as filler J. Build. Eng. (IF 6.4) Pub Date : 2024-04-29 Guanhua Ni, Zhenglin Fu, Zhao Li, Gongshuai Sun, Xiangfei Zhang, Gang Wang, Zhenyang Wang, Yixin Liu, Chuanhua Xu
-
Carbonation curing behavior and performance improvement of recycled coral waste concrete J. Build. Eng. (IF 6.4) Pub Date : 2024-04-29 Yi-Sheng Wang, Shafiq Ishak, Guang-Zhu Zhang, Xiao-Yong Wang
Carbonation curing can improve material properties and reduce the concrete industry's carbon emissions. This study used powder prepared from waste coral to replace ordinary Portland cement (0, 10, and 20 %). After initial curing for 24 h, the mortar was cured by sealing and carbonation. The dilution effect of coral powder substantially reduces the mechanical properties under sealing curing. Under carbonation
-
Enhancing concrete durability in chloride-rich environments through manual application of healing agents J. Build. Eng. (IF 6.4) Pub Date : 2024-04-29 Vanessa Cappellesso, Tim Van Mullem, Elke Gruyaert, Kim Van Tittelboom, Nele De Belie
Concrete structures in chloride-rich environments are prone to deterioration, especially when ions can intrude via cracks towards the steel reinforcement. Self-healing concrete could significantly extend the service life of reinforced concrete. Hence, selecting appropriate healing agents to improve the durability is a critical challenge for the construction industry. This study investigates the use
-
Study on the mechanical properties of a viscoelastic self-centering brace with rotational displacement amplification and its application in RC frames J. Build. Eng. (IF 6.4) Pub Date : 2024-04-28 Debin Wang, Ran Pang, Guoxi Fan, Gang Wang
This paper introduces a novel viscoelastic self-centering brace with a rotational displacement amplification function (VSB-RA), developed to address the issue of limited energy dissipation in traditional self-centering braces. The basic structure and working mechanism of the VSB-RA are detailed. Low-cycle reciprocating loading tests were performed on two types of VSB-RA specimens with different initial
-
Innovative use of hazelnut shell ash as an alkali activator: A comparative analysis with commercial activators J. Build. Eng. (IF 6.4) Pub Date : 2024-04-27 Tarik Omur, Derya Kanat, Nihat Kabay
The selection of alkali activators is crucial in determining the characteristics of alkali-activated materials (AAMs). The activators are typically derived from commercial sources and significantly affect the ecological impact of AAMs across different life cycle categories. Hence, this study investigated the utilization of hazelnut shell ash (HNA) as an alternative activator in the synthesis of AAMs
-
Effect of mix dosage on rubberized concrete mechanical performance: A multivariable prediction model towards design provisions J. Build. Eng. (IF 6.4) Pub Date : 2024-04-27 Felipe Guíñez, Hernán Santa María, Gerardo Araya-Letelier, Jocelyn Lincoleo, Fabrizio Palominos
-
Effect of seashell powder as binder material on the performance and microstructure of low-carbon sustainable alkali-activated concrete J. Build. Eng. (IF 6.4) Pub Date : 2024-04-27 Yuping Wu, Jingzhou Lu, Yanfeng Nie, Wenhui He
This paper proposes using waste seashells as raw materials to partially replace fly ash in alkali-activated concrete (AAC). Fifteen groups of alkali-activated mortar and concrete were designed, with seashell powder (SP) substitution and sodium hydroxide molar concentration as variables. The material's workability, compressive strength, hydration products and micropore structures were examined. The
-
Concrete self-healing performance using surface roughness parameters: Metrological approach J. Build. Eng. (IF 6.4) Pub Date : 2024-04-27 Amir Sidiq, Sujeeva Setunge, Pratheep Kumar Annamalai, Rebecca J. Gravina, Filippo Giustozzi
-
Experimental and simulation study on the thermoelectric performance of semi-transparent crystalline silicon photovoltaic curtain walls J. Build. Eng. (IF 6.4) Pub Date : 2024-04-27 Longyu Yao, Wenjie Zhang, Fengcheng Huang, Rui Zhao, Kai Tang
This study aims to evaluate and optimize the thermoelectric performance of semi-transparent crystalline silicon photovoltaic (PV) curtain walls. An integrated thermoelectric performance coupling calculation model was developed, combining heat transfer and electricity generation calculations as a novel approach. Simulations and experiments were conducted to compare the performance of PV curtain walls
-
Cross-sectional shape effect of stay-in-place formwork column on axial compressive behaviour J. Build. Eng. (IF 6.4) Pub Date : 2024-04-27 Zainab Hashim Abbas, Iqbal N. Gorgis, Maan S. Hassan
-
Preparation and hydration of low-carbon UHPC with high fraction of activated tuff and recycled fine powders J. Build. Eng. (IF 6.4) Pub Date : 2024-04-27 Daosheng Sun, Huiying Hu, Rui Ma, Xun Hu, Yi Ding, Aiguo Wang, Kaiwei Liu
Due to the high energy consumption and carbon emission of cement, using active supplementary materials in concrete is widely studied. In this paper, waste tuff micropowder and recycled fine powder (RFP) with maximum replaced ratio of 70 % were investigated by alkali activation in ultra-high performance concrete (UHPC), the mechanical properties and hydration process were studied with different dosages
-
Component‐level point cloud completion of bridge structures using deep learning Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-26 Gen Matono, Mayuko Nishio
Point cloud of existing bridges provides important applications in their maintenance and management, such as to the three‐dimensional (3D) model creation. However, point cloud data acquired in actual bridges are caused missing parts due to occlusions and limitations in sensor placements. This study proposes a learning method to realize the point cloud completion of such structure: the component‐wise
-
Aggregation formulation for on‐site multidepot vehicle scheduling scenario Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-26 Yi Gao, Yuanjie Tang, Rengkui Liu
The multidepot vehicle scheduling problem (MDVSP) is a fundamental public transport challenge. To address the large‐scale model and inherent solution symmetry associated with the traditional trip‐to‐trip connection‐based approach for MDVSP, a new trip‐to‐route (T2R) connection‐based approach is proposed. Considering real‐world problem characteristics with numerous trips sharing common origin–destination
-
Rapid pedestrian‐level wind field prediction for early‐stage design using Pareto‐optimized convolutional neural networks Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-26 Alfredo Vicente Clemente, Knut Erik Teigen Giljarhus, Luca Oggiano, Massimiliano Ruocco
Traditional computational fluid dynamics (CFD) methods used for wind field prediction can be time‐consuming, limiting architectural creativity in the early‐stage design process. Deep learning models have the potential to significantly speed up wind field prediction. This work introduces a convolutional neural network (CNN) approach based on the U‐Net architecture, to rapidly predict wind in simplified
-
Lightweight object detection network for multi‐damage recognition of concrete bridges in complex environments Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-26 Tianyong Jiang, Lingyun Li, Bijan Samali, Yang Yu, Ke Huang, Wanli Yan, Lei Wang
To solve the challenges of low recognition accuracy, slow speed, and weak generalization ability inherent in traditional methods for multi‐damage recognition of concrete bridges, this paper proposed an efficient lightweight damage recognition model, constructed by improving the you only look once v4 (YOLOv4) with MobileNetv3 and fused inverted residual blocks, named YOLOMF. First, a novel lightweight
-
Understanding the effect of non-carbon-based nanoinclusions on chloride penetration resistance and chloride binding capacity of ultra-high performance cementitious composite J. Build. Eng. (IF 6.4) Pub Date : 2024-04-26 Feng Yu, Jialiang Wang, Sufen Dong, Siqi Ding, Baoguo Han
Ultra-high performance cementitious composite (UHPCC) with high durability has been widely employed to prevent the chloride corrosion of reinforced concrete structures exposed to the marine environment. Adding nanoinclusions is expected to fundamentally eliminate the defects (i.e., pores and microcracks) caused by the formulation principle of UHPCC, thereby reducing connected pathways for chloride
-
Improving freeze resistance of cement-based materials with modified graphite-paraffin composite low-temperature microencapsulated phase change materials J. Build. Eng. (IF 6.4) Pub Date : 2024-04-26 Ling Zhang, Shichen Wang, Guokun Yang, Huiyuan Luo, Hourun Lai, Tianle Liu
This study examines the influence of microencapsulated phase change materials (MPCM) on enhancing the freeze-thaw resistance of cementitious structures, overcoming the limitations commonly associated with traditional phase change materials (PCM), such as insufficient thermal conductivity and non-optimal phase change temperatures. The research focused on developing MPCM with improved thermal conductivity
-
Self-healing efficiency of later-age cracked microbial mortar embedded with unencapsulated microorganisms under long-term water and ambient exposure conditions J. Build. Eng. (IF 6.4) Pub Date : 2024-04-26 Kai Zou, Licheng Wang
To ensure the long-term self-healing ability of concrete structures throughout their lifespan is a crucial requirement for Microbially Induced Carbonate Precipitation (MICP) technology. In this study, unencapsulated microbial cells were directly mixed into the fresh mortar as a component to investigate their efficiency in repairing later-age cracks, respectively exposed to long-term water environment
-
Investigations on carbon-sequestration optimization of recycled coarse-aggregate and its effects on concrete performances J. Build. Eng. (IF 6.4) Pub Date : 2024-04-26 Rusheng Qian, Wan-Wendner Lin, Chengqi Yang, Ruze Zhao, Zhibo Ye, Deyu Kong, Yong Zhang
Recycled coarse-aggregate (RCA) derived from waste concrete can be re-used for concrete preparation, which is now limited due to its drawbacks such as micro-cracks, high-porosity, and reduced concrete strengths. To remedy these deficiencies, carbon-sequestration was employed to enhance RCA and the conditions were optimized, including the temperature (20 °C–40 °C), pressure (0.1 MPa–0.3 MPa), time (5
-
Size effect of compressive performance of concrete under elevated temperatures: Tests and meso-scale analysis J. Build. Eng. (IF 6.4) Pub Date : 2024-04-26 Hai Yan Zhang, Wei An Jiang, Bo Wu
This study investigates the size effect of concrete under ambient and elevated temperatures through tests and numerical simulations. Compressive performance of prismatic and cylindrical concrete specimens with varying dimensions were tested at temperatures ranging from ambient temperature to 600°C. Meso-scale finite element analysis (FEA), assuming that the mechanical properties of matrix and interfacial
-
Study on the bond-slip behavior between steel bar and rammed earth J. Build. Eng. (IF 6.4) Pub Date : 2024-04-26 Liangyi Zhang, Tiegang Zhou, Zaiyu Zhang, Hui Tao, Wei Tan, Zengfei Liang
The steel bars significantly enhance the mechanical properties of rammed earth, as they together withstand external loads. In order to investigate the bond performance between steel bars and rammed earth, the pull-out tests were conducted on 60 specimens. This study investigated the distribution of bond stress along the anchorage length of steel bars by embedding strain gauges inside the bars. The
-
Performance of compressed earth bricks reinforced with sugar industrial by-products bagasse and molasse: Mechanical, physical and durability properties J. Build. Eng. (IF 6.4) Pub Date : 2024-04-26 Farah Chantit, Fatima-Ezzahra El Abbassi, Azzouz Kchikach
Because sustainable development is a major concern, many studies focus on reducing greenhouse gas emissions during the manufacturing of building materials. Therefore, in this study, we aim to produce lightweight eco-friendly compressed earth bricks (CEB) using industrial sugar by-products, sugarcane bagasse fibers (SCB) and molasse (SCM), as soil stabilizers to diminish the employment of cement. First
-
Influence of basalt fiber and polypropylene fiber on the mechanical and durability properties of cement-based composite materials J. Build. Eng. (IF 6.4) Pub Date : 2024-04-26 Zhenxia Li, Tengteng Guo, Yuanzhao Chen, Chenze Fang, Yangming Chang, Jiaxin Nie
-
Multistage charging facility planning on the expressway coordinated with the power structure transformation Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-25 Tian‐yu Zhang, En‐jian Yao, Yang Yang, Hong‐Ming Yang, Dong‐bo Guo, David Z. W. Wang
This study presents a novel multistage expressway fast charging station (EFCS) planning problem coordinated with the dynamic regional power structure (PS) transformation. Under the prerequisite of the EFCS network's sustainable operation, network accessibility, and orderly construction, a three‐step planning method oriented to the enhancement of energy saving and emission reduction (ESER) benefits
-
Extending air-cooled data center emergency cooling duration with phase change material: An experimental study J. Build. Eng. (IF 6.4) Pub Date : 2024-04-25 Maysam Gholampour, Ze-Wen Zhang, Chi-Chuan Wang
Data center failure due to power outage can lead to huge economic losses and goodwill impairment. In this research an attempt has been made to extend emergency cooling duration under different power outage scenarios: a complete power outage, an outage affecting the chiller-side while the air handling unit remained operational, and an outage targeting the chiller. The study experimentally focused on
-
Optimizing the compressive strength of low-grade hydrous clay and copper slag‐based sustainable ternary blended geopolymer mortar J. Build. Eng. (IF 6.4) Pub Date : 2024-04-25 Nithin A.V., Deepa Raj S., Mini Soman
Ternary blended geopolymers represent a new class of sustainable binders with improved properties when compared to mono and binary blended geopolymers under ambient conditions. The study focuses on low grade industrial waste materials; locally sourced hydrous clay (HC) waste and copper slag (CS), to create novel Ternary Blended Geopolymer Mortars (TBGM). The addition of CS had a positive effect on
-
The impact of thermal comfort requirements on household heating energy consumption J. Build. Eng. (IF 6.4) Pub Date : 2024-04-25 Lu Jiang, Jinrou Li, Yingsheng Zheng
Urban residential buildings consume a large amount of energy. In most homes, heating runs on a set schedule. Therefore, the installation continues to operate irrespective of whether the residents' thermal comfort requirements have been fulfilled. This process results in considerable wasted energy and CO emissions. To address this issue, in this study, data on heating energy use and carbon emissions
-
Energy consumption, power generation and performance analysis of solar photovoltaic module based building roof J. Build. Eng. (IF 6.4) Pub Date : 2024-04-25 Lim Jun Wei, M.M. Islam, M. Hasanuzzaman, Erdem Cuce
Building energy intensity (BEI) of typical office buildings in Malaysia ranges from 200 to 250 kWh/m/year, wherein a substantial portion is due to the cooling system. This study evaluates of the performance and suitability of double-laminated monocrystalline solar photovoltaic (PV) glass in comparison to traditional solar PV systems installed on roofs in Malaysian conditions. To address this aim, simulation
-
Seismic modeling and performance evaluation of seismically isolated building considering large strain effects under near-fault earthquakes J. Build. Eng. (IF 6.4) Pub Date : 2024-04-25 Bin Wang, Theodore L. Karavasilis, Peng Chen, Kaoshan Dai
Lead rubber bearings (LRBs) have been widely used in seismically isolated buildings to mitigate earthquake damages in highly earthquake-prone regions. The deformation of the LRBs has been generally recognized to conform to the bilinear model under moderate shear deformation. However, when the bearings are loaded with large strain deformation, LRBs exhibit a significant increase in stiffness and strength
-
Reactive UAV-based automatic tunnel surface defect inspection with a field test Autom. Constr. (IF 10.3) Pub Date : 2024-04-24 Ran Zhang, Guangbo Hao, Kong Zhang, Zili Li
This work addresses the problem of automatic tunnel surface defect inspection using unmanned aerial vehicles (UAVs). The research aims at proposing a robust and efficient monitoring method for image data acquisition and processing in complex and dark tunnel environments. A method, called Proximity Move-Pause-Photo for Surface Defect Inspection (PMPP-SDI), is proposed by combining reactive flying control
-
An intelligent optimization method for the facility environment on rural roads Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-24 Weixi Ren, Bo Yu, Yuren Chen, Kun Gao, Shan Bao, Zhixuan Wang, Yuting Qin
This study develops an intelligent optimization method of the facility environment (i.e., road facilities and surrounding landscapes) from drivers’ visual perception to adjust operation speeds on rural roads. Different from previous methods that heavily rely on expert experience and are time‐consuming, this method can rapidly generate optimized visual images of the facility environment and promptly
-
Virtual trial assembly of large steel members with bolted connections based on multiscale point cloud fusion Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-24 Zeyu Zhang, Dong Liang, Haibin Huang, Lu Sun
Virtual trial assembly (VTA) using 3D laser scanning as the digital carrier can overcome the shortcomings of time‐consuming and costly physical preassembly. However, its application in large steel structures with bolted connections remains limited. First, this study introduces a novel approach for acquiring multiscale point cloud data of large steel members using terrestrial laser scanners (TLSs) and
-
Enhance the loss of sound transmission of glass using a thin polyester/silica aerogel composite as a new sound insulation J. Build. Eng. (IF 6.4) Pub Date : 2024-04-24 Mohammad S. Abazari, Mohammad H. Entezari
-
Enhancing concrete sustainability using crushed peanut shells: An analysis of thermophysical properties, durability, and application potential in construction J. Build. Eng. (IF 6.4) Pub Date : 2024-04-24 Othmane Horma, Salaheddine Channouf, Aboubakr El Hammouti, Sara El Hassani, Hanane Miri, Mohammed Amine Moussaoui, Ahmed Mezrhab
This study explored the integration of crushed peanut shells (PS) into concrete with an emphasis on sustainable construction. Uniquely, it examines the impact of PS morphologies at low incorporation rates (0–6%) on the thermophysical properties and durability of concrete through rigorous experimental analysis and computational simulations. Our findings reveal that PS significantly enhances insulation
-
Progressive collapse resistance of local prestressed concrete sub-structures: Numerical analysis and theoretical verification J. Build. Eng. (IF 6.4) Pub Date : 2024-04-24 Tao Qu, Bin Zeng, Zhen Zhou, Linjie Huang
The local prestressed concrete (LPC) structure is a structural form that combines the prestressed concrete (PC) span with the common reinforced concrete (RC) span, with significant asymmetry. Currently, there is insufficient research on the progressive collapse resistance of LPC structures. To investigate the progressive collapse mechanism of LPC structures, a parametric analysis was conducted by using
-
Study on the effect of strain rate on the bond performance between GFRP bars and ECC after seawater freeze-thaw cycles J. Build. Eng. (IF 6.4) Pub Date : 2024-04-24 Shuling Gao, Shilin Zhang, Xiaokun Jing
With the increase in marine and coastal infrastructure in cold regions, freeze-thaw damage and dynamic loads will reduce structural performance. However, the dynamic bonding performance of seawater sea sand ECC and glass fiber-reinforced polymer (GFRP) bars after freeze-thaw cycles is still unclear. In this paper, the mass loss rate, dynamic elastic modulus, and compressive strength of seawater sea
-
TBM tunneling strata automatic identification and working conditions decision support Autom. Constr. (IF 10.3) Pub Date : 2024-04-23 Kang Fu, Daohong Qiu, Yiguo Xue, Tao Shao, Gonghao Lan
It has become an important research topic to ensure the safe and efficient tunnel boring machine (TBM) tunneling in the construction of long distance and deep buried tunnels. This study aims to construct an assistant decision support system that integrates surrounding rock classification identification and tunneling parameters prediction optimization, providing quantitative decision guidance for driving
-
Design of curvilinear sections in vertical alignment of roads and railways using general transition curves Autom. Constr. (IF 10.3) Pub Date : 2024-04-23 Andrzej Kobryń
Creation of road and railway routes in general and also design of vertical alignment in particular constitute an significant engineering problem. The vertical alignment of roads, and especially of railways, is of great importance for passenger comfort under high-speed driving conditions. This requires alignment smoothness to a greater extent. In practice, the dominant tendency is to consider vertical
-
Fire detection and suppression in rooms with different geometries J. Build. Eng. (IF 6.4) Pub Date : 2024-04-23 G.V. Kuznetsov, R.S. Volkov, A.S. Sviridenko, P.A. Strizhak
-
Applications of X-ray computed tomography to characterize corrosion-induced cracking evolution in reinforced concrete: A review J. Build. Eng. (IF 6.4) Pub Date : 2024-04-23 Jaber Taheri-Shakib, Adil Al-Mayah
Corrosion damage is the one of the most significant degradation factors to reinforced concrete structures. Developing reliable instrumentation and methodology to localize and track such damage is critical to evaluate the structural capability. X-ray computed tomography (CT) imaging is a promising non-destructive approach for qualitative and quantitative research of corrosion in reinforced concrete
-
Experimental study on direct shear resistance of horizontal grouted joints in PC shear walls under compression and in-plane bending moment J. Build. Eng. (IF 6.4) Pub Date : 2024-04-23 Xing-Ju Yang, You-Han Jiang, Feng Lin
The upper and lower panels of the prefabricated concrete shear wall are usually connected via horizontal grouted joints to maintain structural integrity. The horizontal grouted joints are typically under compression and in-plane bending moment. In the current design practice, it is generally considered that the direct shear resistance of the horizontal grouted joint is identical to that of the new-old
-
XGBoost algorithm based estimation of near surface mounted FRP rod-to-concrete bond strength and failure mode J. Build. Eng. (IF 6.4) Pub Date : 2024-04-23 Aman Kumar, Harish Chandra Arora, Moncef L. Nehdi
Using fiber-reinforced polymer (FRP) in reinforced concrete (RC) structures can mitigate the colossal repair costs due to reinforcing steel corrosion. Hence, FRP rod/bar is gaining wider applications in diverse RC structures as a partial or full replacement for steel rebar. The FRP rod-to-concrete interfacial bond is pivotal in transferring stresses from concrete to FRP rods. This study develops a
-
Properties of ultra lightweight foamed concrete utilizing agro waste ashes as an alkaline activated material J. Build. Eng. (IF 6.4) Pub Date : 2024-04-23 Mohammad Alharthai, Md Azree Othuman Mydin, Rodrigue Cyriaque Kaze, Samadar S. Majeed, Bassam A. Tayeh
In the present investigation, rice husk ash (RHA), bamboo leaf ash (BLA) and palm oil fuel ash (POFA) known as agricultural-waste materials locally available were used to produce ultra lightweight foamed concretes (ULFCs). BLA, RHA, and POFA were used as replacements for cement in ULFCs at different weight percentages of 0 %, 5 %, 10 %, 15 %, and 20 %. To achieve the target density of 350 kg/m, cement
-
Aligning Net zero energy, carbon Neutrality, and regenerative concepts: An exemplary study of sustainable architectural practices J. Build. Eng. (IF 6.4) Pub Date : 2024-04-22 S. Zahra Housh Sadat, Masoumeh Bararzadeh Ledari, Hooman Dehvari, Melika Sahamiyan Moghaddam, M. Reza Hosseini
This paper introduces an innovative approach that combines Net Zero Energy (NZE), Net Zero Carbon (NZC), and Regenerative principles, redefining sustainable architecture in Iran. Focusing on a residential "attached house," the study employed strategies like thermal insulation, Low-E glass, shading, and renewable energy sources. Results show a 45 % improvement in thermal performance, reducing heating
-
Analysis of rainwater use in membrane-based semi-direct evaporative cooling of air J. Build. Eng. (IF 6.4) Pub Date : 2024-04-22 Sebastian Englart
The trend of seeking solutions to reduce energy consumption in buildings is evident in the context of heating, ventilation, and air conditioning technologies. One such solution with low energy consumption is direct evaporative cooling systems. However, the use of such systems is associated with an increase in fresh water consumption in buildings. The article presents a novel approach to air cooling
-
Holistic performance assessment of gridshells: Methodological framework and applications to steel gridshells J. Build. Eng. (IF 6.4) Pub Date : 2024-04-22 Lorenzo Raffaele, Luca Bruno, Francesco Laccone, Fiammetta Venuti, Valentina Tomei
Gridshells are a paradigmatic example of the intricate concept and analysis of building structures. Their design should simultaneously take into account different goals and meet final performances, by referring to multiple disciplinary competences such as the ones of architects, engineers, builders, and experts in mathematics and computer graphics. The present study provides a deep insight into a new
-
Improving the mechanical performance of concrete by graphene nanoplatelets (GNP) enrichment in the interfacial transition zone (ITZ) J. Build. Eng. (IF 6.4) Pub Date : 2024-04-22 Wanzhang Fu, Xiaoguang Li, Panqi Wang, Tao Xu, Jing Zhou, Kun Liang, Xu Wang, Mingsheng Liu
-
Effect of three-dimensional space on progressive collapse resistance of reinforced concrete frames under various column removal scenarios J. Build. Eng. (IF 6.4) Pub Date : 2024-04-22 Fei-Fan Feng, Hyeon-Jong Hwang, Yun Zhou, Jing-Ming Sun, Hu-Zhi Zhang, Jun-Ho Roh, Su-Min Kang, Wei-Jian Yi
In this study, high fidelity finite element (FE) model was adopted to investigate the progressive collapse resistance of reinforced concrete (RC) frame structures under various column removal scenarios. The validity of the numerical model was verified by comparing with the existing experimental results. Afterwards, to facilitate the research on possible simplified boundary conditions served for further
-
Development of ReShadS, a climate-responsive shading system: Conception, design, fabrication, and small-scale testing J. Build. Eng. (IF 6.4) Pub Date : 2024-04-22 Gabriel de Bem, Eduardo Krüger, Pablo La Roche, Alexandre A.A.M. de Abreu, Lina Luu
Integrating computational technologies to produce dynamic and intelligent architecture that can enhance building thermal performance and meet users' requirements and routines is broadly classified as responsive architecture. This seems to be a viable solution for façades, reducing energy demand during the building operational phase. However, scientific content regarding responsive components' fabrication
-
Impact of aluminate cements on the durability and mechanical performance of strain-hardening cementitious composites J. Build. Eng. (IF 6.4) Pub Date : 2024-04-22 Chung-Chan Hung, Anggun Tri Atmajayanti, Valentine Chronica Domaria Meiji, Terry YP. Yuen, Doo-Yeol Yoo
Strain-hardening cementitious composites (SHCCs) are durable, ductile, fiber-reinforced cement-based materials. While fly ash (FA) is often used to partially replace Portland cement in SHCCs to enhance material performance, it can lead to long setting times and slow strength development. To address these limitations, this study investigates the use of aluminate cement as partial replacements for Portland
-
Transformer‐based framework for accurate segmentation of high‐resolution images in structural health monitoring Comput. Aided Civ. Infrastruct. Eng. (IF 9.6) Pub Date : 2024-04-21 M. Azimi, T. Y. Yang
High‐resolution image segmentation is essential in structural health monitoring (SHM), enabling accurate detection and quantification of structural components and damages. However, conventional convolutional neural network‐based segmentation methods face limitations in real‐world deployment, particularly when handling high‐resolution images producing low‐resolution outputs. This study introduces a
-
Investigation of the indoor CO2 removal efficiency and fresh air energy savings of living walls in office spaces J. Build. Eng. (IF 6.4) Pub Date : 2024-04-21 Danni Zhang, Lei Zhang, Yu Zhang
Elevated indoor CO levels might have adverse effects on human health. However, conventional physical and chemical methods for indoor CO removal face the challenges of high energy consumption, low efficiency at low CO concentrations, and high costs. Furthermore, the introduction of outdoor air to lower indoor CO concentrations results in significant HVAC energy consumption. Aligning with office hours
-
Short-term PV power data prediction based on improved FCM with WTEEMD and adaptive weather weights J. Build. Eng. (IF 6.4) Pub Date : 2024-04-21 Fengpeng Sun, Longhao Li, Dunxin Bian, Hua Ji, Naiqing Li, Shuang Wang
Photovoltaic (PV) systems are commonly used in zero energy buildings(ZEBs) due to their high efficiency and convenience. However, PV systems are affected by meteorological factors with nonlinearities and stochasticity in the power generation process, which leads to inaccurate prediction of PV power, affects the relationship between energy supply and user demand, and then has a significant impact on