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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal DOI :
Architectural Institute of Korea
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Volume & Issues
Volume 14, Issue 4 - Dec 2012
Volume 14, Issue 3 - Sep 2012
Volume 14, Issue 2 - Jun 2012
Volume 14, Issue 1 - Mar 2012
Selecting the target year
3D Simulation of Environmental Conflict Resolution in Intelligent Environments
Lee, Jae-Wook ;
Architectural research, volume 14, issue 1, 2012, Pages 3~9
DOI : 10.5659/AIKAR.2012.14.1.3
Owing to the advent of ubiquitous computing technologies, the concept of Intelligent Environments has emerged, as an alternative approach to overcome the limitation of the built environment. Intelligent Environments can be more responsive to user-and context-specific human activities by automatically and dynamically modifying their settings without explicit human intervention. However, the conventional approach to the development of Intelligent Environments has mainly focused on the technical issues without paying much attention to the dynamic interrelationship between the user and the built environment. Therefore, differing or conflicting needs of multiple simultaneous users remain unresolved. The objective of this study is to present types of environmental conflicts and their resolution through agent collaboration and negotiation. For the demonstration and validation of the conflict resolution process, a set of hypothetical test cases is simulated in a 3D test environment. The result of the case simulations shows that the proposed approach is computationally feasible and applicable to the development of Intelligent Environments, and, furthermore, it can overcome the drawback of the conventional approach.
Intermittent Heating and Cooling Load Calculation Method -Comparing with ISO 13790
Lee, Sang-Hoon ;
Architectural research, volume 14, issue 1, 2012, Pages 11~18
DOI : 10.5659/AIKAR.2012.14.1.11
College of Architecture, Georgia Institute of Technology, Atlanta, GA, US Abstract The intermittent heating and cooling energy need calculation of the ISO 13790 monthly method was examined. The current ISO 13790 method applies a reduction factor to the continuous heating and cooling need calculation result to derive the intermittent heating and cooling for each month. This paper proposes a method for the intermittent energy need calculation based on the internal mean temperature calculation. The internal temperature calculation procedure was introduced considering the heat-balance taking into account of heat gain, heat loss, and thermal inertia for reduced heating and cooling period. Then, the calculated internal mean temperature was used for the intermittent heating and cooling energy need calculation. The calculation results from the proposed method were compared to the current ISO 13790 method and validated with a dynamic simulation using EnergyPlus. The study indicates that the intermittent heating and cooling energy need calculation method using the proposed model improves transparency of the current ISO 13790 method and draws more rational outcomes in the monthly heating and cooling energy need calculation.
The Integrated Design Optimization Technique for Spatial Structures
Lee, Sang-Jin ;
Architectural research, volume 14, issue 1, 2012, Pages 19~26
DOI : 10.5659/AIKAR.2012.14.1.19
The technique of integrated design optimization is proposed to design spatial structures. Various element technologies such as topology optimization, layout editing and size optimization processes are used in an integrated manner to improve the performance of spatial structures. In order to demonstrate the present technique, a unit spatial structure is optimized and numerical results are described here.
Substructuring and Decoupling of Discrete Systems from Continuous System
Eun, Hee-Chang ; Koo, Jae-Oh ;
Architectural research, volume 14, issue 1, 2012, Pages 27~33
DOI : 10.5659/AIKAR.2012.14.1.27
This study proposes analytical methods to establish the eigenfunction of continuous system due to substructuring and decoupling of discrete subsystems. The dynamic characteristics of updated continuous system are evaluated by the constraint effect of consistent deformation at the interfaces between two systems. Beginning with the dynamic equation for constrained discrete system, this work estimates the modal eigenmode function for the continuous system due to the addition or deletion of discrete systems. Numerical applications illustrate the validity and applicability of the proposed method.
Indicator of Facility Performance Evaluation (FPE) for Educational Facilities of BTL Projects
Lee, Kwan-Jong ; Lee, Chun-Kyong ; Park, Tae-Keun ;
Architectural research, volume 14, issue 1, 2012, Pages 35~44
DOI : 10.5659/AIKAR.2012.14.1.35
Build-Transfer-Lease (BTL) was introduced to the domestic construction market in 2005. Now, seven years later, the BTL model is most active for educational facilities. In 2011, 93 educational facility projects entered the maintenance stage. Considering the characteristics of today's BTL projects for educational facilities, the main issues are the initial performance and maintenance of educational facilities and the service-providing status for the 20-year operational management period, in relation to providing safety and convenience to students, the facility users. Seeking a solution, local education offices and departments in charge of BTL under the Ministry of Education, Science, and Technology have been exploring various methods of evaluating operational maintenance performance from various perspectives. For educational facility BTL projects, however, the appropriateness of initial operation performance evaluation, rather than considering the 20-year operational management period, is controversial in regards to sustainability. On this account, performance evaluation items in four areas-operational maintenance evaluation, facility performance status evaluation, maintenance subject evaluation, and sustainable change response evaluation-should be extracted. An indicator of facility performance evaluation is presented in this study through an AHP survey targeting experts, as part of establishing an operation performance evaluation system for educational facility BTL projects.