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6th International Conference on Mechanics of Masonry Structures Strengthened with Composite Materials, MuRiCo6 2019

作者： Giordano, Ersilia Ferrante, Angela Ribilotta, Elisa Clementi, Francesco Lenci, Stefano Department of Civil and Building Engineering and Architecture Polytechnic University of Marche via Brecce Bianche Ancona60131 Italy

ISBN: (纸本)9783035715651

Italy is a high seismic risk country. Since 1900 more than 30 earthquakes with magnitude greater than Mw=5.8 occurred, and the last one is the Central Italy seismic sequence. The first shock aroused in the 24th August (Mw=6.2) followed by another stronger quake in the 30th October (Mw=6.5). It heavily hit the regions of Marche, Umbria, and Abruzzo causing many deaths, injuries and extensive damages on the cultural heritage. This paper analyses the church of San Francesco in Amadola, located in the Marche region that has been considered condemned for the severe damages reported after these earthquakes. The church is globally analyzed by the application of nonlinear static analysis on a Finite Element Model where the nonlinearity of masonry is taking into account with a proper constitutive law. The study wants to prove how global analysis combined by the local analysis can reproduce the behavior of this structure during a quake, showing that it can repeat the real damages produced by earthquakes. © 2019 Trans Tech Publications Ltd, Switzerland.

关键词： Earthquakes

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The Non-smooth tale of "Apennine Churches" stroked by the Central Italy Earthquakes of 2016

The Non-smooth tale of "Apennine Churches" stroked by the Ce...

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2019 IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage, MetroArchaeo 2019

作者： Ferrante, Angela Giordano, Ersilia Clementi, Francesco Milani, Gabriele Formisano, Antonio Department of Civil and Building Engineering and Architecture Polytechnic University of Marche via Brecce Bianche Ancona60131 Italy Department of Architecture Built Environment and Construction Engineering Polytechnic of Milano Piazza Leonardo da Vinci 32 Milano20133 Italy Department of Structures for Engineering and Architecture University of Naples "Federico II" Piazzale Tecchio 80 Naples80125 Italy

ISBN: (纸本)9789299008454

The dynamic behavior and the seismic vulnerability of different masonry "Apennine Churches", dramatically damaged by the last shocks sequence of 2016 that occurred in Central Italy, have been studied in this paper by means of advanced 3D numerical analyses with the Discrete Element Method (DEM). Thus, a discontinuous approach has been used to assess the dynamic properties and the vulnerability of the masonry structure, through large deformations regulated by the Signorini’s law, concerning the impenetrability between the rigid bodies, and by the Coulomb’s law, regarding the dry-friction model. The major purpose of this study is to highlight that relevant data on the real structural behavior of historical masonry can be provided through advanced numerical analyses. The comparison between the results of the numerical simulation and the survey of the existing crack pattern of the churches permitted to validate the used approach. Finally, from the results and conclusions of these cases study, it is possible to affirm that the used methodology can be applied to a wide variety of historical masonry structures in Europe. © 2019 International Conference on Metrology for Archaeology and Cultural Heritage.

关键词： Finite difference method

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Design and operational aspects of anaerobic membrane bioreactor for efficient wastewater treatment and biogas production

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Environmental Challenges 2023年 10卷

作者： Elmoutez, Salaheddine Abushaban, Almotasembellah Necibi, Mohamed Chaker Sillanpää, Mika Liu, Jiadong Dhiba, Driss Chehbouni, Abdelghani Taky, Mohamed International Water Research Institute (IWRI) Mohammed VI Polytechnic University Lot 660 Hay Moulay Rachid Ben Guerir 43150 Morocco Department of Chemical Engineering School of Mining Metallurgy and Chemical Engineering University of Johannesburg P. O. Box 17011 Doornfontein 2028 South Africa Faculty of Sciences Department of Chemistry Biochemistry and Environmental Protection University of Novi Sad Trg Dositeja Obradovića 3 Novi Sad 21000 Serbia Department of Biological and Chemical Engineering Aarhus University Nørrebrogade 44 Aarhus C 8000 Denmark Key Laboratory of Northwest Water Resource Environment and Ecology MOE Xi'an University of Architecture and Technology Xi'an 710055 China Key Laboratory of Membrane Separation of Shaanxi Province Xi'an University of Architecture and Technology Xi'an 710055 China Innov X Mohammed VI Polytechnic University Lot 660 Hay Moulay Rachid Ben Guerir 43150 Morocco Laboratory of Advanced Materials and Process Engineering Faculty of Sciences Ibn Tofail University Kenitra 1246 BP Morocco

Anaerobic membrane bioreactor (AnMBR) is one of the most advanced water treatment technologies that might contribute to overcome exponential water demand in many regions around the world. AnMBR technology converts wastewater (WW) to reasonable quality of permeate water which can be used for irrigation, produces energy in the form of biogas, and generates stabilized sludge that can be recovered as biofertilizer. In the last decade, AnMBR got high interest to be used for municipal wastewater (MWW) treatment. However, AnMBR still faces some issues that hinder its upscaling to industrial maturity. This review focuses on improving the performance of AnMBR with respect to system configuration and design aspects. Both the fundamental biological (anaerobic digestion) and physical (membrane filtration mechanisms) treatment are discussed. The effect of operational parameters on the performance of AnMBR and exploitation challenges (such as fouling) of AnMBR are addressed as well. Overall, new research directions aiming at improving AnMBR performance (strategies to ensure stability under different organic loads and operating conditions, maximum recovery of dissolved methane, combination of different cleaning techniques, validation of the economic feasibility on a large scale) is still needed. © 2022

关键词： Anaerobic membrane bioreactor Biogas Circular economy Membrane fouling Municipal wastewater treatment Resources recovery

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Analyzing factors influencing defect-based conditions for sewer pipes using Bayesian networks

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Reliability engineering and System Safety 2025年 262卷

作者： Ma, Shihui Zayed, Tarek Xing, Jiduo Ren, Zhihao Department of Building and Real Estate Faculty of Construction and Environment The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong Department of Architecture and Civil Engineering City University of Hong Kong 83 Tat Chee Avenue Kowloon Tong Hong Kong

The failure and condition of sewer pipes are usually influenced by various uncertainties and factors. Therefore, it is vital to evaluate the defect-based condition of sewer pipes for maintenance and failure prevention. In contrast to relying on the existing domain knowledge, this paper proposes a data-driven Bayesian network (BN) model to analyze the impacts of different influence factors (IFs) on the sewer pipes’ defect-based condition based on the developed database about the Hong Kong sewer network. Specifically, fourteen IFs are collected to develop a multi-source integrated database that incorporates pipe physical, environment, and climate-related factors. Then, the structure of the BN model is learned by Bayesian searching algorithm, and the reliability of the proposed model is evaluated using sensitivity analysis methods. Moreover, special scenarios are assumed to explore possible configurations of IFs. The results reveal that age, diameter, population and soil type are the top four IFs affecting the condition of sewer pipes, among which pipes with some characteristics need to be closely monitored, such as pipe age greater than 50 years, diameter less than 200 mm, location with a population density less than 15,000, and location in fill or granitic rocks. This paper improves sewer pipe management by integrating a comprehensive database and enabling reliable pipe condition inferences. The insights provide practical suggestions for the sewer pipe layout, risk analysis, and maintenance strategy formulation. It is a precious tool for authorities to enhance the safety and efficiency of sewer system management. © 2025 Elsevier Ltd

关键词： Risk assessment

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Challenges and opportunities in the global net-zero building sector

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Cell Reports Sustainability 2024年第8期1卷

作者： Ma, Minda Zhou, Nan Feng, Wei Yan, Jinyue School of Architecture and Urban Planning Chongqing University Chongqing 400045 China Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 China Faculty of Material Science and Energy Engineering Shenzhen Institute of Advanced Technology Shenzhen 518055 China Building Technology and Urban Systems Division Energy Technologies Area Lawrence Berkeley National Laboratory Berkeley 94720 CA United States Department of Building Environment and Energy Engineering The Hong Kong Polytechnic University Hong Kong Kowloon China

Buildings worldwide, which represent the final piece to be addressed in the transition to carbon neutrality, require a multisectoral, comprehensive strategy for decarbonization. We provide an overview of the current global status and features of carbon emissions associated with buildings, then outline pathways and steps to achieving carbon neutrality by mid-century. By synergizing technical innovation, encompassing advanced building technologies and renewable energy solutions, with robust financial support mechanisms, we can expedite the widespread adoption of building electrification and energy system decarbonization. This integrated approach stands as the most practical and effective strategy for decarbonizing building operations. Vital measures for reducing embodied carbon include constraining the building stock growth, decarbonizing materials, and extending building lifetimes. We emphasize the importance of raising awareness of building carbon emissions among governments, residents, and other stakeholders. Understanding the challenges and the urgent need for action is crucial to achieving carbon neutrality in the building sector. © 2024

关键词： building decarbonization strategy carbon neutrality clean construction decarbonized materials end-use efficiency GLOBE database renewable power integration

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Retraction Note: Artificial neural networks (ANN), MARS, and adaptive network-based fuzzy inference system (ANFIS) to predict the stress at the failure of concrete with waste steel slag coarse aggregate replacement

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Neural Computing and Applications 2024年第24期36卷 15223-15223页

作者： Piro, Nzar Shakr Mohammed, Ahmed Hamad, Samir M. Kurda, Rawaz Civil Engineering Department Faculty of Engineering Soran University Soran Kurdistan Region Erbil Iraq Scientific Research Centre Soran University Soran Kurdistan-Region Erbil Iraq Civil Engineering Department College of Engineering University of Sulaimani Kurdistan Iraq Department of Highway and Bridge Engineering Technical Engineering College Erbil Polytechnic University Erbil Iraq CERIS Civil Engineering Architecture and Georresources Department Instituto Superior Técnico Universidade de Lisboa Lisbon Portugal

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Regulating Water Molecules via Bioinspired Covalent Organic Framework Membranes for Zn Metal Anodes

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Angewandte Chemie - International Edition 2025年第14期64卷 e202424184页

作者： Zhang, Sida Chen, Jiashu Chen, Weigen Su, Yiwen Gou, Qianzhi Yuan, Ruduan Wang, Ziyi Wang, Kaixin Zhang, Wentao Hu, Xiqian Zhang, Zhixian Wang, Pinyi Wan, Fu Liu, Jie Li, Beibei Wang, Yifei Zheng, Guangping Li, Meng Sun, Jingyu State Key Laboratory of Power Transmission Equipment Technology School of Electrical Engineering National Innovation Center for Industry-Education Integration of Energy Storage Chongqing University Chongqing400044 China Soochow Institute for Energy and Materials Innovation Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou215006 China Department of Mechanical Engineering Hong Kong Polytechnic University Hung Hom Kowloon999077 Hong Kong MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems CQU-NUS Renewable Energy Materials & Devices Joint Laboratory School of Energy and Power Engineering National Innovation Center for Industry-Education Integration of Energy Storage Chongqing University Chongqing400044 China School of Building Services Science and Engineering Xi'an University of Architecture and Technology Xi'an710055 China School of Electrical and Electronic Engineering Chongqing University of Technology Chongqing400054 China Hunan University Changsha410082 China College of Environmental Science and Engineering National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology Beijing University of Technology Beijing100124 China

The Zn metal anode in aqueous zinc-ion batteries (AZIBs) faces daunting challenges including undesired water-induced parasitic reactions and sluggish ion migration kinetics. Herein, we develop three-dimensional covalent organic framework (COF) membranes with bioinspired ion channels toward stabilized Zn anodes. These COFs, featured by zincophilic pyridine-N sites, enable effective regulation of water molecules at the anode-electrolyte interphase. Systematic experimental analysis and theoretical simulations reveal the optimized COF-320N membrane functions as ion pumps, accordingly facilitating Zn2+ transport and inhibiting direct contact between Zn anode and free water molecules. Consequently, the bio-inspired strategy achieves improved Zn2+ transference number (0.61), rapid de-solvation kinetics, and suppressed hydrogen evolution. The assembled Zn||MnO2 pouch cell integrated with COF-320N membrane exhibits favorable electrochemical performances. Such a bioinspired concept for optimizing Zn anodes opens new pathways in developing advanced energy storage devices. © 2025 Wiley-VCH GmbH.

关键词： Manganese oxide

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Seismic Analysis of 10-MW Off Shore Wind Turbine with Large-Diameter Monopile in Consideration of Seabed Liquefaction

Research Square

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Research Square 2021年

作者： Zhang, Jian Zhu, Songye Yuan, Guo-Kai Gu, Quan Ke, Shitang Pei, Ai-Guo Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Hong Kong China Energy Engineering Group Guangdong Electric Power Design Institute Co. Ltd. Guangdong Province Guangzhou China School of Architecture and Civil Engineering Xiamen University Xiamen China Department of Civil Engineering Nanjing University of Aeronautics and Astronautics Nanjing China

With the increasing construction of large-scale wind turbines in seismically active coastal areas, the survivability of these high-rated power offshore wind turbines (OWTs) in marine and geological conditions becomes extremely important. Although research on the dynamic behaviors of OWTs under earthquakes has been conducted in consideration of soil-structure interaction, attention paid to the impact of earthquake-induced seabed liquefaction on OWTs supported by large-diameter monopiles is limited. In view of this research gap, this study carries out dynamic analyses of a 10-MW OWT under the combined wind, wave, and earthquake loadings. This study uses a pressure-dependent multi-surface elastoplastic constitutive model to simulate the soil liquefaction phenomenon. Results indicate that the motion of the large-diameter monopile leads to more extensive soil liquefaction surrounding the monopile, specifically in the zone near the pile toe. Moreover, compared with earthquake loading alone, liquefaction becomes more severe under the coupled wind and earthquake loadings. Accordingly, the dynamic responses of the OWT are apparently amplified, demonstrating the importance of considering the coupling loadings. Compared with wind loading, the effect of wave loading on the dynamic response and liquefaction potential is relatively insignificant. © 2021, CC BY.

关键词： Offshore wind turbines

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Crack development in dredged sediment due to the deformation of vertical drains under intermittent vacuum preloading

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KSCE Journal of Civil engineering 2025年

作者： Guizhong Xu Yupeng Cao Mengying Gao Yuchen Wang Junjun Ni Qiyuan Han School of Architecture and Engineering Yancheng Polytechnic College Yancheng 224005 China School of Civil Engineering Yancheng Institute of Technology Yancheng 224051 China College of Civil and Transportation Engineering Weifang University Weifang 261061 China School of Transportation Southeast University Nanjing 211189 China Department of Civil and Environmental Engineering Hong Kong University of Science and Technology Hong Kong China School of Civil and Architecture Engineering East China University of Technology Nanchang 344000 China

The intermittent vacuum preloading in combination with the deformable drainage system method exhibited excellent performance in treating dredged sediment. The contraction and expansion of vertical drainage system caused the formation of cracks on the surface soil. To reveal the mechanisms of crack development, laboratory model box tests were conducted on dredged sediment with different initial water contents ( w 0 ) under various expansion strains of vertical drainage system (ε). The study investigated the crack development patterns (e.g., crack number, crack length, maximum crack width, and crack area) on surface soil near the drainage system. The results indicated that the expansion of drainage systems gradually resulted in a radial distribution of soil cracks. The threshold strain values of vertical drainage systems corresponding to the initiation of soil cracks gradually increased, with the increase of w 0 . The total crack length, total crack area and maximum crack width exhibited a decreasing trend as the w 0 increased. This study also identified a critical w 0 ( w 0 < water content at liquid limit) for the formation of cracks on the surface soil. The cracks could potentially increase the drainage area, which further enhanced the treatment effect of dredged sediment with high water content. Rapid ecological treatment of dredged sediment benefits coastal communities, shipping, and fisheries while improving water quality and reducing flood risks, thereby underpinning regional ecological restoration and sustainable development.

关键词： crack development patterns deformable vertical drainage systems dredged sediment initial water content laboratory model box test

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Seismic behaviour of steel industrial buildings built in the late 80’s in the Campania region of Italy

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AIP Conference Proceedings 2023年第1期2849卷

作者： Emilia Meglio Antonio Formisano Raffaele Landolfo Department of Structures for Engineering and Architecture School of Polytechnic and Basic Sciences University of Naples “Federico II” P. le V. Tecchio 80 80125 Naples Italy

The recent Italian seismic events, such as the 2012 Emilia-Romagna earthquake, have highlighted the vulnerability of the Italian built heritage, including the industrial buildings. Most of these buildings were erected before the classification in seismic areas of the territory and, therefore, designed for static vertical and horizontal wind loads only. Industrial steel buildings have shown a good behaviour under earthquake, but they represent a structural typology at risk, considering that the vulnerability of warehouses is connected, in addition to life safety, also to preserving the goods stored inside. Starting from a large-scale survey in the municipality of Cercola, in the district of Naples, the industrial buildings of the late 1980s have been selected and a class of constructions representing the most common type widespread on the Italian territory has been identified. After defining a range of geometrical parameters for the selected structure, five similar types of buildings have been calculated with the allowable stresses method according to the design manuals of that period and then subjected to non-linear static analyses. Pushover and fragility curves of the five models with both empirical and mechanical approaches have been derived in order to assess the probability of damage in the different seismic hazard areas of the Italian territory.

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