• KCI Concrete Journal
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• v.11 no.3
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• pp.153-164
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• 1999

The objective of this research is to observe the actual response of a low-rise nonseismic moment-resisting masonry-infilled reinforced concrete frame subjected to varied levels of earthquake ground motions. The reduction scale for the model was determined as 1 : 5 considering the capacity of the shaking table to be used. This model was, then, subjected to the shaking table motions simulating Taft N2IE component earthquake ground motion, whose peak ground acceleration(PGA) was modified to 0.12g, 0.2g, 0.3g, and 0.4g. The g1oba1 behavior and failure mode were observed. The lateral accelerations and displacements at each story and local deformations at the critical portions of the structure were measured. Before and after each earthquake simulation test, free vibration tests and white noise tests were performed to find the changes in the natural period of the model. When the results of the masonry-infilled frame are compared with those of the bare frame, it can be recognized that masonry infills contribute to the large increase in the stiffness and strength of the g1oba1 structure whereas it also accompanies the increase of earthquake inertia forces. However, it is judged that masonry infills may be beneficial to the performance of the structure since the rate of increase in strength appears to be greater than that of the induced earthquake inertia forces.

• Journal of The Korea Institute of Healthcare Architecture
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• v.11 no.1
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• pp.15-22
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• 2005

Healthcare design has been considered as one of the most complex design types. In this study, healthcare design complexity is analysed by the following categories: (1) function; (2) medical technology; (3) scientific knowledge; (4) aesthetics; and (5) interest group complexity. The central questions here are: (1) What is the impact of specialized knowledge on the professional practice; and (2) What are the relationships between design complexity and specialized knowledge. To answer these questions, this study utilizes two approaches, including mail-out questionnaires survey and in-person and focus group interviews. This study found that healthcare design architects emphasize the technical component of specialized healthcare design knowledge. Thus they perceive that architectural research, as a tool to increase specialized healthcare design knowledge, is beneficial to solve the technical components including medical technology and functional problems. In the professional practice, however, architectural research is hardly conducted due mainly to the lack of money and time for it. Different perceptions regarding healthcare design complexity and architectural research among the firms exist, depending on the firm size. These results imply that the knowledge management strategy of large firms can be more efficient to the organizational growth than the small firms.

• Journal of the Korean Institute of Educational Facilities
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• v.26 no.2
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• pp.3-10
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• 2019

This study evaluated the vibration use and safety of students living in the dormitories on the 12th and 14th floors by feeling uncomfortable. The measurement method was to measure the acceleration due to free vibration and single - person walking. The slab stiffness was then calculated, and the usability and safety were compared according to international standards. The natural frequency of the slab was 6.8 Hz. The natural frequency of a typical slab is around 15Hz. Therefore, the evaluation slab is judged as a flexible floor structure. It is considered that there is a high possibility of resonance in the middle of daily life because of low natural frequency and near harmonic component of walking vibration. As a result, the RMS acceleration level is within the tolerance range defined by ISO 10137 code, but the 13th floor exceeds the reference limit, so that a sensitive person could detect the vibration somewhat in the lying position.

• Journal of the Earthquake Engineering Society of Korea
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• v.25 no.6
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• pp.305-314
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• 2021

The Gyeongju and Pohang earthquakes caused damages to many cultural properties; particularly, stone pagoda structures were significantly damaged among masonry cultural properties. To preserve these structures, it is necessary to understand their dynamic behavior characteristics under earthquakes. Analyses on such areas as deformation, frequency, maximum acceleration, permanent displacement, sliding, and rocking have to be performed. Although many analytical studies have already been conducted, dynamic behavior studies based on experiments are insufficient. Therefore, this study analyzed dynamic behavior characteristics by performing a shaking table experiment on a three-story stone pagoda structure at the Cheollongsa temple site damaged by the Gyeongju earthquake. As a result of the experiment, the displacements of stylobates did not occur significantly, but the tower body parts rotated. In particular, the rotation of the 1F main body stone was relatively larger than that of the other chief body stones because the 1F main body stone is relatively more slender than the other parts. In addition, the decorative top was identified as the component most vulnerable to sliding. This study found that the 1F main body stone is vulnerable to rocking, and the parts located on the upper part are more vulnerable to sliding.

• Journal of the Architectural Institute of Korea Structure & Construction
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• v.35 no.10
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• pp.143-153
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• 2019

In this study, a full scale 3-axes shake table test for M-bar and T-bar type ceilings commonly used in the country was conducted. Through damage inspection during the test, seismic performance of ceilings according to variables, such as clearance between wall mold and ceiling as well as existence of facilities, was evaluated. A test frame consisted of square hollow section members was used for the shake table test. The experimental method was performed as a fragility test using required response spectrum described in ICC-ES AC156. In the case of architectural nonstructural component that contain ceilings, it mainly is evaluated the performance by post-test visual inspection. For the evaluation of seismic performance of ceilings, this study classified and defined damaged items for targeted ceiling system referring to illustrative damage according to nonstructural performance levels accordance with ASCE 41 and previous studies. And proposed illustrative damage items classification was utilized to compare the degree of the damage according to experimental variables. The experiment results confirmed that differences in boundary conditions due to the clearance at wall mold and the installation of facilities had a significant effect on the seismic performance of the ceiling.

• Korean Institute of Interior Design Journal
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• no.40
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• pp.3-9
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• 2003

Today the social concern about Interior Design gradually requires wide comprehension. Also according to demanders' requirement. Colleges cope with speed. Interior Design made by experts for the function and purpose in the conception of decoration. Therefore, Colleges are responsible to educate for more capable professional designers. But management is the first concern for Interior Design Company students are going to work at. Interior Design has not the important state yet in Korea, it is hard to manage the company with only design works on the table. As architectural design side must get some admission, design is apart from construction. but they are worked together in Interior Design. Also, as the architectural design with process detail drawings, interior design is required the detail design for construction. But it is the facts that the college is interested in and concentrated on rather education for design and space plan than intensive education for construction because of the restricted environment of practice room. I propose component and practical use of nude construction department to understand detailed design.

• Architectural research
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• v.12 no.2
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• pp.15-22
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• 2010

Our prediction model is based on the development of "Semantic Location Model." It embodies geometrical and topological information which can increase the efficiency in prediction and make it easy to manipulate the prediction model. Data mining is being implemented to extract the inhabitant's location patterns generated day by day. As a result, the self-learning system will be able to semantically predict the inhabitant's location in advance. This context-aware system brings about the key component of the ubiquitous computing environment. First, we explain the semantic location model and data mining methods. Then the location prediction model for the ubiquitous computing system is described in details. Finally, the prototype system is introduced to demonstrate and evaluate our prediction model.

• Steel and Composite Structures
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• v.27 no.1
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• pp.27-33
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• 2018

In this study, a mixed-interpolated tensorial component 4 nodes method (MITC4) is treated as a numerical analysis model for topology optimization using multiple materials assigned within Reissner-Mindlin plates. Multi-material optimal topology and shape are produced as alternative plate retrofit designs to provide reasonable material assignments based on stress distributions. Element density distribution contours of mixing multiple material densities are linked to Solid Isotropic Material with Penalization (SIMP) as a design model. Mathematical formulation of multi-material topology optimization problem solving minimum compliance is an alternating active-phase algorithm with the Gauss-Seidel version as an optimization model of optimality criteria. Numerical examples illustrate the reliability and accuracy of the present design method for multi-material topology optimization with Reissner-Mindlin plates using MITC4 elements and steel materials.

• Journal of architectural history
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• v.17 no.1
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• pp.47-64
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• 2008

The object of this research is to examine the planning principles of Sangju which has an old history The results of the investigation are as follow 1. Sangju placed on the plains in the castle, it is established in Korea Dynasty 2. The formation of Sangju is infruenced Feng-shui. They plants Chestnuts against centipede mountain 3. Sangju is similar to the configuration of the another city in Feng-shui and elements of Component. But, many buildings(jin-Young(Military site), Choong-Ui-Dan, Choong-Yeol-Sa) are associated with the war in Sangju. 4. The City hall is located on the west side of the hotel(Kaek-Sa). It is located on Wang-San which is a place where citizens with symbolism. So, the City hall is higher than Kaek-Sa 5. The cruciform style road which connected with 4 gates was formed in the castle.

• Journal of architectural history
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• v.26 no.6
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• pp.7-18
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• 2017

Altar architecture is a kind of sacrificial building, mainly formed in altar. Central architecture of Altar architecture is relatively simple. However, various attached building are necessary for worship. Among them, Sinsil which is a place to seal a God's tablet, is very important. The central government of the Joseon Dynasty attempted to define the local sacrificial system and make it customary as a way to strengthen the centralization based on Confucianism. Nonetheless, the altar architecture of the province without detailed regulations, were managed and underwent repairs according to the political situation of the state and local circumstances. Sinsil, which is an important component of the altar architecture, best reflects this situation. Therefore, it was possible to grasp the situation of the altar architecture of the province in the Joseon Dynasty by analyzing the Sinsil through various documents. As a result of analysis, it was divided into six types. In addition, It is also found that there are temporal relation between these six types.