Kustiani

This paper presents parametric and multi-objective optimization (MOO) approach in optimizing daylight and energy consumption by incorporating louvres shading devices depicting three different sky conditions: Birmingham, UK, Jakarta, Indonesia, and Sydney, Australia. The study aims to observe the best louvre design configuration for each given context. The proposed optimization system iterates the logic of the louvre shading device as the dynamic design parameters such as overhang, blade size, spacing, and blade rotation, together with the room orientation to achieve maximum useful daylight illuminance (UDI) and the shading aperture while simultaneously reduces energy consumption. A total of 8509 simulations for three cities have been run and distributed for the purpose of this research. The results of MOO stated an improvement in UDI for Birmingham, Jakarta, and Sydney of 80%, 146.26%, and 79.48%, and cooling energy consumption of 28%, 3.26%, and 2.99% respectively.

The use of parametric and multi-objective optimization (MOO) as a new way of approaching architectural design has been growing in line with current breakthroughs in computational architecture. Wood, on the other hand, is a living and unique building material that provides durability, manufacturing flexibility, and local availability. One of the structure types that provides high structural stability is the hyperboloid. However, the exploration of hyperboloid structures in building design, together with the building daylight objective, is still limitedly reported. This paper presents the application of the parametric approach and multi-objective optimization in optimizing the structure and daylight objectives of a hyperboloid two-story wooden house in Japan, made of 105 mm × 105 mm × 4000 mm Japanese timber. The method involves iterating dynamic parameters such as radius bottom, offset distance, timber members, twisting level, building height, radius-top, and roof slope to optimize the structural objective of minimizing normal force average, displacement, and cost while simultaneously maximizing building volume. Regarding daylight objectives, unit movement and glazing ratio that control the glazing strategies were explored to optimize useful daylight illumination (UDI) in summer and winter. The optimization and exploration yielded 10,098 solutions in structural analysis and 406 solutions in daylight exploration. Based on the data analysis, the proposed methodology has successfully produced the best design solution, discovering the balance between the objective trade-offs. In addition, the most influential parameter that shapes the value of design objectives has been identified. The findings of this research were expected to contribute to and enhance the performance-based design optimization, and support design decision-making process in the early design stage of a wooden house with a hyperboloid structure.

A shared room as a public facility in a dormitory is a particular facility that supports student learning activities. The learning process carried out together can increase student creativity and higher productivity. It shows from the learning ethos of students who have the principle of group learning. Of course, with this habit, facilities are needed to accommodate activities with a large enough capacity. An attractive space design can influence a person’s psychology to learn and interact. This study aims to improve the shared space design quality to make it more attractive for students’ learning activities and social interactions. The behavior architectural design approach is used based on the questionnaire results, which states that students have not maximally used the shared space. The aspect of behavior variables used in this research methodology is interaction. Interaction is the researcher’s primary reference to answer the effectiveness of using shared space as a public space. The result shows that the standard room can be maximized as a space for activities that support the learning process and socialize for students. This finding can be a reference to improve the design consideration for future student dormitory design, especially for shared room design in the dormitory.

Dormitory facilities are essential accommodation facility that facilitated by universities that have a large number of students. The room’s level of effectiveness in a dormitory can be measured by the number of rooms, especially those that are private, such as bedrooms. Institut Teknologi Sumatera (ITERA), with many new students enrolled every year, must accommodate hundreds of students, especially those who come from outside the city. Due to the large number of students, the university management provided a solution to accommodate three people in one room. It gives various perceptions amongst the users about the effectiveness of space and its effect on user functional performance. This study aims to determine the level of effectiveness in using room space and its effect on individual learning performance. This study compares male and female dormitories based on the assessment aspect of several user perception variables. The method used in this research is based on the results of questionnaires distributed to students with aspects of assessment including privacy, territory, crowdedness, and adaptability. This study’s results are a parameter of space effectiveness based on space capacity and its effect on student learning performance. This finding is expected to become a reference for dormitory facilities to facilitate better.

Building performance can be improved by investigating and evaluating previews of occupant behavior. Post-occupancy evaluation (POE) is a design analysis method used to direct and evaluate the physical and social elements of inhabited buildings. In recent years, the Ministry of Public Works and Public Housing grants student dormitory building to several Indonesian universities. In 2017, Institut Teknologi Sumatera (ITERA) Bandar Lampung Indonesia has been granted two of those student facilities. The building has been operated for three years. The student dormitory considered has one type of building that has a high capacity occupation. This research aims to measure user satisfaction and evaluate building facility and its implication to student learning effectively using the POE method, specifically human behavior aspects. During this time, POE is more focused on building physical behavior that includes energy and thermal aspects. In this study, the author tries to raise aspects of human behavior as an essential element supporting the sustainability of the building. The survey conducted using eight variables: territoriality, privacy, interaction, perception, crowdedness, adaptability, durability, and comfortability. This research focuses on measuring only female student dormitories. One hundred eighty-two respondents were involved in the survey. The result shows that the majority of respondents feel quite satisfied with all the variable measure. This finding can be a reference to improve the design consideration for future student dormitory design.