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Improving the structural efficiency of textured threedimensional concrete printing wall by architectural design

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Frontiers of Structural and Civil Engineering 2024年第5期18卷 699-715页

作者： Wannapol SADAKORN Santirak PRASERTSUK Lapyote PRASITTISOPIN Architectural Technology Research Unit Department of ArchitectureFaculty of ArchitectureChulalongkorn UniversityBangkok 10330Thailand faculty of architecture and Planning Thammasat UniversityPathumthani 12121Thailand

Three-dimensional concrete printing(3DCP)technology begins to be adopted into construction application *** studies have focused on producing a higher concrete quality and offering a user-friendly construction ***,the 3DCP construction cost is unlikely to be lower than that of conventional construction,which is especially important for projects where the cost is *** broaden the 3DCP construction applications,reduction of the quantity of 3DCP material usage is *** work aims to perform structural analysis of several patterns of geometric textured 3DCP shell wall structures.21 different cantilevered textured patterns of 3DCP shell wall structures were architecturally designed and then subjected to structural analysis by a finite element method(FEM).The results indicated that by designing appropriate patterns,the structural performance to weight ratio could be improved up to 300%.The study therefore offers an innovative design process for constructing 3DCP housing and suggests preconstruction analysis methods for 3DCP shell wall structures.

关键词： 3D printing concrete architectural design shell wall finite element method

Assessing the socio-cultural impact of urban revitalisation using Relative Positive Impact Index(RPII)

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Built Heritage 2024年第1期8卷 67-83页

作者： Shahim Abdurahiman A.K.Kasthurba Affa Nuzhat Department of architecture and Planning National Institute of Technology CalicutKozhikodeKeralaIndia faculty of architecture Avani Institute of DesignThamarasseryKozhikodeKeralaIndia

Urban heritage is a vital resource that connects communities to their local *** developments and rapid urbanisation often harm the authenticity of historic areas,disrupting the cultural fabric and altering their *** study introduces the Relative Positive Impact Index(RPll),a novel technique for assessing the socio-cultural impacts of urban *** significance of RPII lies in its ability to quantitatively evaluate the impacts on the cultural fabric and integrity of historic urban areas,which is crucial for sustainable urban *** study's objective is to apply RPII in evaluating qualitative socio-cultural characteristics in historic urban areas,with a focus on four main criteria and 16 sub-criteria,in the case of the Kuttichira *** methodology integrates the analysis of published literature,a quantitative survey mapping the stakeholders'perception,and qualitative *** approach facilitates an in-depth understanding of how urban revitalisation affects local socio-cultural dynamics,preserving the authenticity and character of historic *** study reveals that the revitalisation project in Kuttichira positively impacts the socio-cultural fabric of the area,maintaining cultural integrity and addressing social *** findings offer valuable insights for sustainable urban development and policymaking in historic *** study recommends the application of RPll in other urban precincts for comparative analysis and further development of urban development practices,contributing to informed urban policy and planning decisions.

关键词： urban revitalisation socio-cultural impact relative positive impact index urban heritage sustainability

Mathematical beauty and Palladian architecture:Measuring and comparing visual complexity and diversity

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Frontiers of Architectural Research 2024年第4期13卷 729-740页

作者： Ju Hyun Lee Michael J.Ostwald School of Built Environment Faculty of ArtsDesign&ArchitectureThe University of New South WalesSydneyNSW 2052Australia

Palladio’s design principles,including proportion and harmony,have often been associated with mathematical definitions of ***,the geometric and semantic properties of his fac¸ades have rarely been analysed in a holistic *** is little evidence of how mathematical beauty may be embodied in his *** research investigates complexity(fractal dimension or D)and diversity(perplexity or PP)as aesthetic indices,aiming to capture distinct characteristics of Palladian *** D and PP values of 22 Palladian villa fac¸ades are measured and analysed,before being compared with those of three Renaissance facades by Sebastiano *** combination of D and PP captures the geometric and semantic aesthetic qualities of architectural ***,the developed scatter plot of D and PP results supports the identification of four distinct aesthetic types of Palladian fac¸ade *** novel combination of D and PP measures contributes to a better understanding of one definition of the mathematical beauty of architecture,wherein“the whole is other than the sum of the parts”in compositional terms(a famous Gestalt principle).Specifically,this research provides new mathematical insights into the visual character of Palladian architecture and compares two important measures thereof.

关键词： Palladian architecture Complexity Diversity Mathematical beauty Perplexity Fac¸ade design

Adaptive Segmentation for Unconstrained Iris Recognition

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Computers, Materials & Continua 2024年第2期78卷 1591-1609页

作者： Mustafa AlRifaee Sally Almanasra Adnan Hnaif Ahmad Althunibat Mohammad Abdallah Thamer Alrawashdeh faculty of architecture and design Al-Zaytoonah University of JordanAmman11733Jordan faculty of Computer Studies Arab Open UniversityRiyadh11681Saudi Arabia faculty of Science and Information Technology Al-Zaytoonah University of JordanAmman11733Jordan

In standard iris recognition systems,a cooperative imaging framework is employed that includes a light source with a near-infrared wavelength to reveal iris texture,look-and-stare constraints,and a close distance requirement to the capture *** these conditions are relaxed,the system’s performance significantly deteriorates due to segmentation and feature extraction ***,a novel segmentation algorithm is proposed to correctly detect the pupil and limbus boundaries of iris images captured in unconstrained ***,the algorithm scans the whole iris image in the Hue Saturation Value(HSV)color space for local maxima to detect the sclera *** image quality is then assessed by computing global features in red,green and blue(RGB)space,as noisy images have heterogeneous *** iris images are accordingly classified into seven categories based on their global RGB *** the classification process,the images are filtered,and adaptive thresholding is applied to enhance the global contrast and detect the outer iris ***,to characterize the pupil area,the algorithm scans the cropped outer ring region for local minima values to identify the darkest area in the iris *** experimental results show that our method outperforms existing segmentation techniques using the UBIRIS.v1 and v2 databases and achieved a segmentation accuracy of 99.32 on UBIRIS.v1 and an error rate of 1.59 on UBIRIS.v2.

关键词： Image recognition color segmentation image processing localization

Ordinary Urban Heritage of Rattanakosin: Ordinary restaurants and everyday foods of the historic center of Bangkok

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Frontiers of Architectural Research 2024年第2期13卷 335-348页

作者： Prin Jhearmaneechotechai design for Creative Economy Research Unit Department of Urban and Regional PlanningFaculty of ArchitectureChulalongkorn UniversityBangkok 10330Thailand

This paper discussed the selection criteria for Ordinary Urban Heritage (OUH) in Rattanakosin, the historic center of Bangkok through the case of ordinary restaurants and everyday foods. The OUH stands for an alternative approach to heritage understanding and conservation, derived from the notion of ordinary heritage, vernacular heritage, and urban heritage emphasizing the heritages of the everydayness of ordinary people. The OUHs have co-existed and inherited through the evolution of the city but are overlooked by the official conservation process. Ordinary restaurants and everyday foods were selected by 5 criteria, 1) appeared for more than 50 years;2) created, developed, and used by ordinary people;3) found as the clusters;4) able to be adapted to the urban context;5) exist until the present *** methodology applied to the analysis of the historical documents and Bangkok maps from 1887 to 1974, and the selection criteria developed from past research in another old commercial district of Bangkok were also reinvestigated with observational surveys. Ordinary restaurants and everyday foods are the outcomes representing the heritage of everyday life of ordinary people that are ubiquitously related to commercial activities.

关键词： Ordinary restaurants Everyday foods Rattanakosin Selection criteria Ordinary Urban Heritage

A study on the form contemporary developments of Tabriz leather and shoe Bazaar(marketplace)from the late Qajar to current period

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Frontiers of Architectural Research 2024年第4期13卷 741-763页

作者： Rana Najjari Nabi Nahideh Rezaei Rahmat Mohammad Zadeh Farzin Haghparast Department of Architectural Engineering&Urban design Shahid Rajaee Teacher Training UniversityTehranIran faculty of architecture and Urbanism Tabriz Islamic Art UniversityTabrizIran Department of Civil Architecture GroupUniversity of TabrizTabrizIran

Bazaars are considered essential components of a society’s economy and significant features in the urban context of cities,which have emerged based on exchanging goods and meeting people’s *** the late Qajar period,amidst the rapid changes resulting from interaction with modernization,the form of Tabriz Grand Bazaar has undergone significant *** research aims to explain the contemporary transformations of marketplace form in the leather and shoe *** objectives aim to elucidate the contemporary physical,functional,and sementic changes and propose *** research method is qualitative,with a phenomenological *** results indicate that the Bazaar has lost some physical and sementic *** providing goods,it has failed to meet the public’s demands because of eliminating production workshops by changing the productive function to service-oriented and the size and shape of *** decline of religious activities is also one reason for the diminished sementic *** functional and physical aspects,some proposed solutions include preserving the authenticity of the spaces and utilizing suitable Functions with the dominant architectural *** sementic characteristics,suggestions include enhancing the sense of identity.

关键词： Contemporary developments Form Functional_Physical_Semantic factors Marketplace Bazaar

Theoretical framework of the Isfahani style: Inspiring sustainable aspects of a vernacular urban development

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Frontiers of Architectural Research 2024年第2期13卷 349-369页

作者： Hatef Jafari Sharami Seyed Jamalaldin Hosseini Department of architecture and Urbanism University of EyvanekeyEyvanekey 99888-35918Iran faculty of Civil and architecture University of EyvanekeyEyvanekey 99888-35918Iran

The Isfahani style represents a method of traditional Iranian architecture and urban development that existed in the early 20th century and is regarded as a leading model in most traditional Iranian cities. It exhibits several vigorous features contributing to its recognition as a traditional approach to sustainable architecture and urban development. This research endeavors to reveal a theoretical framework beneath these inspiring aspects using the typology of sustainable modern forms, including the hierarchy, passive design strategies, compactness, density, diversity, mixed land use, pluralism, balance, good composition, and integration over time. To this end, the study employs qualitative research methods, drawing from traditional samples, to identify innovative, energy and socially efficient, and low-impact strategies implemented in this vernacular architecture of Iran's semi-arid and hot climates. The findings revealed that the neighborhood concept as a local and plural community (Mahalla) was a vital phenomenon in Iran's urban development. Apparently, the demise of this paradigm effectively played an important role in the numerous challenges regarding the social, energy, and economic viability of modern Iranian cities. Hence, this study presented theoretical frameworks—aligned with sustainable concepts—from the Isfahani style through its analysis, classification, and interpretation, which can contribute to modern urban development.

关键词： Isfahani style Vernacular urban development Sustainable urban development Iranian cities Vernacular architecture

Geometric investigation of entrance proportions of houses from the Qajar to the beginning of the early Pahlavi in Dezful City(1789—1979)

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Frontiers of Architectural Research 2024年第1期13卷 57-78页

作者： Raziyeh Rezadoost Dezfuli Mohammad Mehrakizadeh Behnaz Safar Ali Najar Hassan Bazazzadeh Mohammadjavad Mahdavinejad Department of architecture Poznan University of Technology61-131 PoznanPoland Department of architecture and Urban Planning Jundi Shapur University of TechnologyDezfulIran College of Engineering and architecture University of Nizwa616 Birkat Al MawzOman Department of architecture Faculty of Art and ArchitectureTarbiat Modares UniversityTehranIran

Due to the importance of the historical context of Dezful City,investigating historic buildings is *** unfortunately,a large part of it is being *** this reason,it is essential to discover the guidelines and logic behind the architectural design of these buildings to help their reconstruction or ***,there is no logical information about the components of this context and the reconstructions are usually done according to taste and based on architecture tested or personal ***,it is necessary to find a logic behind these critical components that support the whole plan or parts of it in a particular *** purpose of this research is to discover and find the logic behind the design of this building in the historical context of *** geometrical proportions can significantly help to reconstruct buildings better and more *** this purpose,30 historical houses of Dezful were randomly selected,and their input information was drawn in 2D form in ***,the length,width,and height proportions were measured,and the obtained ratios were compared with the golden proportions and dynamic *** paper studies entrance based on ratios of√2,√3,√4,√4,√1.25 andφ(the golden section).The results show that golden proportions and proportions derived from dynamic rectangles are present in the wording of all ***,the range of ratios in the plan is from 1.34 to 2,and the content of changes in the section is from 1.22 to *** results can help architects,and particularly building owners,to reconstruct based on existing logic by discovering the proportions of the entrances of the *** is possible to administer a part of the damaged tissue and estimate its dimensions and sizes because the proportions’completeness can help revive half-destroyed historical buildings.

关键词： Proportions Historical houses House entrance Dezful city Qajar period to early Pahlavi

Mapping urban carbon emissions in relation to local climate zones:Case of the building sector in Bangkok Metropolitan Administration,Thailand

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Energy and Built Environment 2024年第3期5卷 337-347页

作者： Dararat Khamchiangta Yoshiki Yamagata faculty of architecture Khon Kaen University123Mittraphap HighwayMueang KhonKaen DistrictKhon Kaen40002Thailand Graduate School of System design and Management Keio UniversityKyousei-kan4-1-1HiyoshiKohoku-kuYokohama223-8526Japan

This study focuses on carbon emissions of the building sector in relation to local climate zone(LCZ)classification,concentrating on two major ***,we estimated carbon emissions in the building sector,which were cal-culated for weekdays and weekends real-time daily energy consumption *** estimations were divided into direct(from petroleum products consumption)and indirect emissions(from electricity consumption).Sec-ond,we examined urban carbon emissions mapping in relation to *** Metropolitan Administration(BMA)was used as the case study and 2016 as the base year for *** results illustrate that indirect emissions in Bangkok can be up to ten times higher than direct *** analysis indicates that LCZ,such as compact high-rise,large low-rise,light industry,and warehouse zones had a relatively higher carbon emission intensity than ***,we identified that the compact high-rise zone has the highest indirect emission intensity,while the light industry and warehouse zone have the greatest direct emission *** results provide insights into the dynamics of carbon emission characteristics in the building sector and the methodology purported here can be used to support low carbon city planning and policymaking in Bangkok.

关键词： Energy consumption Carbon mapping Direct carbon emissions Indirect carbon emissions Local climate zone