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JoDA Journal of Digital Architecture
Published by Universitas Katolik Soegijapranata
ISSN : -     EISSN : 27986896     DOI : 10.24167/joda.v1i1.3698
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Neuroscience
Tujuan dari Jurnal ini adalah untuk mengembangkan keilmuan dalam riset arsuitektur digital yang saat ini mulai berkembang dengan pesat. SCOPE JoDA “Journal of Digital Architecture” mencakup kajian: 1. Desain Arsitektur Digital 2, Kajian Pemukiman dan Perkotaan dengan Software Komputer dan pendekatan pemikiran digital 3. Struktur dan Konstruksi dalam perkembangan teknologi robot dan Software digital 4. Kajian pengembangan Bahan Bangunan dengan pendataan dan analisis software digital 5. Kajian Metode, Teori, Kritik dan Sejarah Arsitektur yang dikemas dalam software komputer atau melibatkan software komputer dalam analisisnya Artikel yang disajikan belum pernah diterbitkan di dalam jurnal manapun, dan diharapkan dapat menjembatani pemikiran–pemikiran yang terkait dengan Arsitektur Digital.
Arjuna Subject : Teknik (semua kategori) - Arsitektur
Articles 80 Documents
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HEAT TRANSFER AS A DETERMINING FACTOR IN THE THERMAL PERFORMANCE OF SEMARANG CATHEDRAL Sulastri Mahmudi; Safitri N.A
JoDA Journal of Digital Architecture Vol 5, No 2: Maret 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v5i2.15102

Abstract

Semarang Cathedral is a historic building that increasingly faces challenges in maintaining thermal efficiency amid climate change and rapid urbanization. This study aims to examine the role of heat transfer as a key factor in shaping the thermal performance of buildings using a quantitative approach. Both experimental and numerical methods were employed, involving direct measurements of the surface temperature, relative humidity, and solar radiation intensity across three primary spatial zones: the nave, transept, and altar. Field data were recorded over a 30-day monitoring period using a MAX6675 K-type thermocouple temperature sensor and an LR8432 heat flow logger, with measurements taken at 10-minute intervals. The heat transfer mechanisms, namely conduction, convection, and radiation, were evaluated using Fourier’s law and Nusselt number correlations to estimate the overall heat transfer coefficient. The analysis shows that the plastered brick walls exhibit an average thermal conductivity of 0.65 W/m·K and contribute to a reduction in indoor air temperature of approximately 18.3% relative to outdoor conditions. These results indicate that wall material characteristics and thickness play a decisive role in maintaining the thermal stability within a building. The findings of this study provide a quantitative basis for formulating energy conservation strategies for historic buildings in tropical climates.
PYTHON-BASED PARAMETRIC DESIGN FRAMEWORK FOR SUSTAINABLE ARCHITECTURE Evan A.P; Ricardo B.P.
JoDA Journal of Digital Architecture Vol 5, No 2: Maret 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v5i2.15103

Abstract

The advancement of computational technology in architecture has led to the emergence of parametric design methods that enable a more adaptive, efficient, and measurable design process. Within the framework of sustainable architecture, such approaches hold significant potential to optimize thermal comfort, natural lighting, and building energy efficiency—particularly in tropical climates. This study aims to develop a Python-based parametric design framework that functions as a decision-support tool for sustainable architectural design. The research method consists of a literature review, the development of parametric scripts in Python integrated with design software such as Rhinoceros–Grasshopper, and performance simulations based on actual climatic data. Evaluation was carried out by analyzing the simulation outcomes across several design variables, including building orientation, roof geometry, and window configuration. The results indicate that the proposed framework provides flexible design responses according to environmental parameters and achieves an energy efficiency improvement of up to 25% compared with conventional design methods. Moreover, the system facilitates the design iteration process and assists architects in making data-driven design decisions. In conclusion, the Python-based parametric approach presented in this study offers an effective solution to advance sustainable architectural practice in the future.
Editorial Paper: From Digital Tools To Contextual Performance: An Editorial Perspective On Parametric Modeling, Environmental Simulation, Affordable Housing, Landscape Design, And Architectural Identity L.M.F Purwanto
JoDA Journal of Digital Architecture Vol 6, No 1: September 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v6i1.16022

Abstract

Editorial Paper: From Digital Tools To Contextual Performance: An Editorial Perspective On Parametric Modeling, Environmental Simulation, Affordable Housing, Landscape Design, And Architectural Identity
CRITIQUING DIGITAL ARCHITECTURE: TECHNOLOGY, CONTEXT, AND ARCHITECTURAL IDENTITY Gricelda Aditya; Arya Putra Dwi; Amalia Nurhayati
JoDA Journal of Digital Architecture Vol 6, No 1: September 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v6i1.16017

Abstract

The rapid development of digital technologies has significantly changed the way architecture is conceived, represented, and produced. Parametric design, computational tools, digital fabrication, and artificial intelligence have expanded architectural possibilities, yet their growing influence also raises concerns about context, place, and architectural identity. This study aims to critically examine the relationship between technological innovation and the contextual qualities of contemporary digital architecture, with particular attention to the tension between digital freedom and the need for meaningful connections to place and culture. A qualitative critical research approach was employed through a review and interpretive analysis of international literature on digital architecture, architectural identity, contextual design, computational design, and emerging AI-based architectural practices. The analysis focused on recurring debates concerning technological determinism, aesthetic homogenization, contextual detachment, and the changing role of the architect in digitally mediated design processes. The findings indicate that digital technology itself does not necessarily diminish architectural identity; rather, problems emerge when technological capabilities become the primary driver of design decisions. The study argues that a more critical approach to digital architecture is needed, in which computational innovation is balanced with cultural context, environmental conditions, human experience, and the character of place. Digital architecture can therefore become more meaningful when technology remains a means of architectural expression rather than its ultimate objective.
INTERACTIVE 3D MODELING IN GRASSHOPPER USING LEAP MOTION AND FIREFLY: A CASE STUDY OF FINGERTIP-BASED PARAMETRIC MODELING Hendro Trieddiantoro Putro; Suparno Suparno
JoDA Journal of Digital Architecture Vol 6, No 1: September 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v6i1.16013

Abstract

This study explores the integration of Leap Motion, Firefly, and Grasshopper to enable fingertip-based interactive 3D modeling in architectural design. A parametric modeling workflow was developed where fingertip movements captured by Leap Motion were translated into geometric parameters via Firefly, generating curves and pipe geometries almost simultaneously in the Rhinoceros environment. Experimental evaluation involved performing modeling tasks, including geometry creation and parametric form manipulation, while measuring task completion time, system response delay, and gesture recognition stability. Results show that curve and pipe geometry creation occurred with minimal delay, averaging 0.72 s and 0.93 s, respectively, indicating real-time responsiveness suitable for early-stage parametric modeling. Parametric form updates required slightly longer response times average 1.08 s due to continuous computation. Gesture recognition was generally stable, with minor jitter observed during rapid hand movements. Qualitative evaluation indicates that the fingertip-based interface is responsive and supports exploratory design interaction. Overall, the findings demonstrate the potential of gesture-based interaction for real-time parametric modeling, providing a natural and immersive design experience. The study highlights opportunities for combining such interfaces with augmented and virtual reality to further enhance interactive architectural design workflows.
THERMAL COMFORT ASSESSMENT OF BOARDING HOUSES IN CANDISEWU, SEMARANG USING THE CBE THERMAL COMFORT TOOL Bimo Sandy Arya; Cathrine Sidibyo
JoDA Journal of Digital Architecture Vol 6, No 1: September 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v6i1.16018

Abstract

Thermal comfort is an important factor in determining the quality of indoor environments, particularly in boarding houses where occupants spend a substantial amount of time for living, studying, and resting. In tropical climates such as Semarang, high outdoor temperatures, humidity, and inadequate natural ventilation can create uncomfortable indoor thermal conditions. Boarding houses in Candisewu, Semarang, have diverse spatial configurations, orientations, openings, and ventilation conditions that may influence occupants’ thermal comfort. However, thermal comfort conditions in this type of residential building have received limited attention. This study aimed to assess the thermal comfort conditions of boarding houses in Candisewu, Semarang, using the CBE Thermal Comfort Tool and to identify the environmental factors that contribute to thermal discomfort. The study employed a quantitative field-based approach involving measurements of indoor air temperature, relative humidity, air velocity, and mean radiant temperature in selected boarding house rooms. The measured environmental parameters were analyzed using the CBE Thermal Comfort Tool to determine Predicted Mean Vote (PMV), Predicted Percentage of Dissatisfied (PPD), and adaptive thermal comfort conditions. The results indicated variations in thermal comfort conditions among the investigated rooms, primarily associated with differences in ventilation, solar exposure, room orientation, and air movement. Several rooms experienced thermal conditions outside the preferred comfort range, indicating the need for passive design improvements to enhance indoor thermal performance.
DIGITAL ANALYSIS OF DAYLIGHT AND THERMAL PERFORMANCE IN RESIDENTIAL ARCHITECTURE OF DA LAT Phạm Gia Bảo; Trần Kim Chi
JoDA Journal of Digital Architecture Vol 6, No 1: September 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v6i1.16014

Abstract

Da Lat has a distinctive highland climate that influences the daylight and thermal conditions of residential buildings. Although the relatively cool climate provides opportunities for passive environmental strategies, residential buildings may still experience uneven daylight distribution and thermal conditions due to differences in orientation, window configuration, building form, and surrounding obstructions. Digital building-performance analysis provides an opportunity to examine these conditions quantitatively and to support more informed architectural decisions. This study aimed to evaluate the daylight and thermal performance of residential architecture in Da Lat and to identify building characteristics that contribute to more comfortable indoor environmental conditions. The research employed a digital simulation approach using a three-dimensional model of a representative residential building. Site and building data, including orientation, room configuration, openings, materials, and climatic conditions, were incorporated into the simulation model. Daylight performance was assessed through spatial daylight distribution, while thermal performance was examined using indoor temperature and thermal comfort indicators. The simulation results were then compared across selected spaces to identify variations in environmental performance. The findings indicated that daylight availability varied considerably between rooms, particularly according to window orientation, opening size, and the presence of adjacent buildings. The thermal analysis also showed differences in indoor conditions between spaces with different levels of solar exposure and ventilation. These findings suggest that digital environmental analysis can provide useful evidence for improving passive design strategies in Da Lat residences. The study contributes a context-specific approach to integrating digital simulation with climate-responsive residential design in a highland tropical environment.
DIGITAL ARCHITECTURAL STRATEGIES FOR AFFORDABLE AND CLIMATE-RESPONSIVE HOUSING IN SOUTH AFRICA Cosmas Lloyd; Amahle Khumalo
JoDA Journal of Digital Architecture Vol 6, No 1: September 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v6i1.16015

Abstract

South Africa faces a persistent affordable housing challenge in which housing shortages, informal settlement growth, environmental vulnerability, and limited household resources intersect. Conventional housing approaches often prioritize the delivery of standardized units, while providing limited capacity to respond simultaneously to local climatic conditions, spatial constraints, and changing household needs. Digital architectural technologies offer an opportunity to move beyond standardized housing provision by enabling data-driven, adaptable, and performance-oriented design strategies. This study aimed to formulate digital architectural strategies for developing affordable and climate-responsive housing appropriate to the South African context. The research employed a qualitative integrative literature review, examining studies on digital architecture, computational and parametric design, building information modelling (BIM), environmental simulation, affordable housing, informal settlements, and climate adaptation in South Africa. The literature was thematically analyzed to identify relationships between digital design capabilities, housing affordability, climatic performance, and contextual adaptability. The results indicate that the most relevant digital architectural strategies comprise four interconnected components: context-based computational design for generating adaptable housing configurations; environmental performance simulation for optimizing thermal comfort, ventilation, solar exposure, and energy demand; BIM-supported material and construction assessment for improving cost efficiency; and participatory digital design for incorporating household needs and incremental housing practices. The study further indicates that digital architecture is most effective when digital technologies are integrated with local climatic, socioeconomic, and spatial conditions rather than applied as stand-alone technological solutions. The resulting framework positions digital architecture as a decision-support approach for producing housing that is not only digitally optimized but also affordable, climate-responsive, and adaptable to the realities of South African communities.
Frontmatter [Front Cover, Editorial Team, Indexing, and Table of Contents] L.M.F Purwanto
JoDA Journal of Digital Architecture Vol 6, No 1: September 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v6i1.16021

Abstract

Frontmatter [Front Cover, Editorial Team, Indexing, and Table of Contents]
DIGITAL LANDSCAPE DESIGN AS AN EXTENSION OF ARCHITECTURAL DESIGN: A CONTEXTUAL FRAMEWORK FOR SUSTAINABLE ENVIRONMENTS IN NEPAL Aarav Gurung; Aadhya Magar; Vivaan Tamang
JoDA Journal of Digital Architecture Vol 6, No 1: September 2026
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/joda.v6i1.16016

Abstract

The integration of landscape and architectural design has become increasingly important in addressing environmental sustainability, climate responsiveness, and the quality of contemporary built environments. However, landscape design is often treated as a complementary component of architecture rather than as an integral extension of the architectural design process. In Nepal, this separation is particularly relevant because diverse topography, climatic conditions, ecological characteristics, and cultural landscapes require context-sensitive design approaches. This study aims to develop a contextual framework that positions digital landscape design as an extension of architectural design for creating sustainable environments in Nepal. The research employed a qualitative design-research approach combining literature review, contextual site analysis, digital mapping, and comparative analysis of landscape and architectural design strategies. Digital design methods were examined in relation to site characteristics, vegetation, topography, solar exposure, water management, circulation, and spatial relationships between buildings and landscape. The results indicate that integrating digital landscape design into the architectural workflow can improve environmental responsiveness, spatial continuity, and design coordination. The proposed framework identifies four interconnected stages: contextual data acquisition, digital analysis, integrated architectural-landscape modelling, and environmental performance evaluation. The framework demonstrates that digital technologies can support context-sensitive landscape decisions while strengthening the relationship between architecture, ecology, and local environmental conditions. The study contributes a contextual design framework for sustainable architectural and landscape integration in Nepal.

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