• Journal of Korean Library and Information Science Society
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• v.43 no.3
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• pp.333-352
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• 2012

Building a new library and remodeling an existing library for the multi-cultural space is a recent trend of the university libraries. That is, the spaces for using the digital and multimedia equipments, the rooms for reading and studying, the spaces for the cultural activities such as watching movies and holding an exhibition, and the spaces for the communication and refreshment are increasing in the libraries. However, this movement of securing and providing the new spaces is not closely connected with the off-line services and happens without the consideration of how to change the librarian's role and position. Therefore, the university libraries need to plan and provide the multi-learning space rather than the multi-cultural space considering the university library is an academic organization. Additionally, understanding the purpose of the university libraries, user's need, utilization method of books and considering the librarian's roles and placement are necessary in planning and providing the space of the libraries.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.34 no.3
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• pp.45-52
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• 2018

Currently, apartments have become an important research subject for the overall area of politics, economics, and culture as well as urban architectural study. However, there are few analyses of the research trends related to the current interest in the apartment research and prediction of the future changes of an apartment in politics and industry. In this study, the research information related to the apartment has classified, and the changes in the research trends have analyzed. Based on the classified data, the first thesis and dissertation related to the apartment and changes of academic notation have discovered. In addition, future interests and future research directions through Frequency of Appearance, Degree Centrality Analysis, and Betweenness Centrality Analysis of author keywords were predicted. As a result of the analysis, 'Space,' 'Residential Mobility' and 'Apartment Complex' studies were found to be important research topics throughout the entire period. 'Han Gang Apartment,' 'Small Size Apartment,' 'Civic Apartments,' 'Jamsil,' and 'Child' were newly interested topics until 70's era. '(Super) High-rise Apartment,' 'Perception,' 'Jugong Apartment,' 'Housing Environment,' 'Housewife,' 'Apartment Layout,' and 'Busan' were newly interested topics during the 80's and 90's era. 'Apartment Price,' 'Energy,' 'Remodeling,' 'Noise,' 'Resident Satisfaction,' 'Community,' and 'Apartment Lotting-out' were newly interested topics after the year 2000. New concerns for last decade are found to be 'Super High-rise Apartment', 'Remodeling', 'Indoor'(2007), 'Apartment Reconstruction Project', 'Brand', 'AHP', 'Housing Environment'(2008), 'Ventilation'(2009), 'Apartment Lotting-out'(2010), 'Economic Assessment'(2011), 'Cost'(2012), 'Green Building', 'Apartment Sales', 'Law', 'Society'(2013), 'Floor Impact Noise', 'Seoul'(2014), 'Noise'(2015), 'Hedonic Model'(2016). In addition, following research topics are expected to be active in the future: In maturity stage of the research development is going to be 'Apartment Price', 'Space', 'Management of Apartment Housing'; the hedonic model, which is research growth and development stage, is going to be '(Floor Impact) Noise', 'Community', 'Energy.

• Journal of Korean Society of Steel Construction
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• v.22 no.5
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• pp.445-453
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• 2010

Recently, the remodeling projects of old low-rise buildings were launched in Korea. However, most of them were not satisfied with the value set forth by the KBC2005. Even though there are some research studies on how to improve the seismic performance of such buildings as newly constructed buildings, there is little research in measuring the actual vibrations on low old buildings to prove the effect of retrofit. There also has not been any in-depth research on the dynamic characteristics of full-scale structures using vibration measurements of the building that was damaged to failure. Using an actuator, the dynamic characteristics of reinforced three-storey concrete buildings were evaluated before and after they were damaged. After an 80-mm horizontal displacement by the actuator, frequency in the long and short directions were reduced to 20.85% and 5.77% respectively ; damping ratio was also reduced to 53.9% and 23.15% respectively.

• Journal of the Korean housing association
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• v.26 no.2
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• pp.111-119
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• 2015

This study aims to analyze space planning of accommodations in seven closed schools involved in experiential activity programs on Jeju Island, a famous tourist destination in Korea. The results are as follows. First, 35 schools had been closed down in Jeju between 1982 and 2015. Among them, four closed schools were sold, three are currently used by the Jeju special self-government provincial office of education, and 25 are being leased by individuals, village organizations, and other entities. However, they have not been well-operated, and so strategies for the effective management or operation of these closed schools should be developed. Second, there are distinctive differences in space planning of accommodations based on the correlation between experiential activities and the types of participants. If the experiential activity participants are mainly individuals or small groups, the closed school is likely to plan double-bed accommodations and individual bathrooms rather than large group rooms. Third, in order to operate experiential activity programs, closed schools require four different spaces for experiential activities, lodging, dining, and sanitation. The largest space available in each school building is used for experiential activities, and original classrooms are still in use. According to the standard drawing of school architecture, standard classroom size since 1997 has been $7.5{\times}9$ meters, and lodging rooms have mainly been re-planned based on the module of the standard-sized classroom. School cafeterias are utilized as dinning and kitchen spaces. For sanitation purposes, original school restrooms are still used by experiential program participants, while the shower rooms are newly equipped.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.39 no.2
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• pp.335-344
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• 2019

Micropiles are widely used for foundation underpinning to enhance bearing capacity and reduce settlement of existing foundation. In this study, the main objective is to evaluate underpinning performance of a newly developed micropile called waveform micropile for foundation underpinning during vertical extension. Finite element method (FEM) was used to evaluate the underpinning performance of waveform micropile in terms of load-settlement response of underpinned foundation and load sharing behavior. For comparison, underpinning effects of three conventional micropiles with different lengths were also discussed in this study. Numerical results of load-settlement response for single pile demonstrated that bearing capacity and axial stiffness of waveform micropiles were higher than those of conventional micropiles because of the effect of shear keys of waveform micropiles. When additional loads 20 %, which is according to design loads of the vertical extension, were applied to the underpinned foundation, load sharing capacity of waveform micropile was 40 % higher than conventional micropile at the same size. The waveform micropile also showed better underpinning performance than the conventional micropile of length 1~1.5 times of waveform micropile.