• Journal of the Korean Geotechnical Society
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• v.17 no.6
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• pp.37-46
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• 2001

Pile load tests were carried out to investigate the contribution of the pile cap to the carrying capacity of a pile group and load transfer characteristics of piles in the group. A group of 24 piles$(4 \times6 array)$ of 92.5mm diameter steel pipe were installed to the depth of 3m fron the ground surface, the top of weathered rock. A maximum load of 320ton was applied to the pile cap, $1.5\times2.3m$, in contact with the ground surface. At the maximum load of 320ton, the pile cap has carried 22% of the total load. Average ultimate capacity of pile in the pile group was estimated to be 16.4ton, substantially higher than that of single pile, installed at the corner and tested before pile cap construction. For the same magnitude of settlement, the pile in the center carried less load than the pile at the perimeter due to strain superposition effect. Piles in the group showed almost constant contribution(approx. 60%) of side friction to the total capacity for all of the loading stages, while that of single pile decreased from 82% to 65%.

• Journal of the Korean Geotechnical Society
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• v.19 no.6
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• pp.49-59
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• 2003

The factors affecting the vertical loads acting on embankment piles can be classified into two factors on pile and soil. Factor on pile is the space between pile cap and factors on soil are embankment height and soil parameters(c, $\phi$). Therefore, a series of model tests were performed both to investigate the extent of influence of these factors and to verify the reliability of the proposed theoretical analysis. In the model tests, the piles were installed in the 6 columns $\times$ 6 rows(or 5 columns $\times$ 5 rows) below the embankment and the isolated pile caps with the area of 2.5cm $\times$ 2.5cm were installed on each pile head. The portion of the embankment load carried by model pile caps decreases with increment of the space between pile caps and increases with increment of the embankment height and the relative density(or internal friction angle) of fill. Also, the experimental results showed good agreement with theoretical predictions.

• The Journal of the Korea Contents Association
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• v.12 no.12
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• pp.111-118
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• 2012

Capstone design is silk engineering in the field of education, the program requires contractors, not the industrial ability to adapt with the creative overall design training programmes in design education in terms of the applicability of that remains to be seen. In this study, the University of art and industrial design major, konkuk University School of design of the Capstone design 2011 and take advantage of the performance, and the curriculum is mainly applied for the technology. Design and development should be followed for experimental studies and a wealth of knowledge for the creation of advanced technology and professional support for institutions and industries to improve practical skills and lessons based on the Convention. This course through the patent, utility model, design, intellectual property, such as money to improve the practical skills of students to gauge the capacity of enterprises through the design, companies will come up with a gauge, and enhancing the competitiveness of SMEs in the community support instrument.

• Journal of the Korea institute for structural maintenance and inspection
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• v.17 no.6
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• pp.40-49
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• 2013

This study purposed to investigate the optimal outrigger location in tall building with cap truss after a structural schematic design of 80 stories building was performed by using MIDAS-Gen. In this paper, the main parameters of structural analysis were the outrigger location and stiffness of main structural elements (outrigger, exterior column, shear wall etc). In order to search the optimal outrigger position in high-rise building with cap truss, we analysed and examined the lateral displacement of top floor which is one of the very important considering factors of tall building structural design. The paper results indicated that the outrigger location and the stiffness of main structural elements such as outrigger, exterior column and shear wall had an effect on the optimal outrigger location. And it is verified that the study results provided the basic engineering data for fixing the most optimal outrigger location for minimizing the lateral displacement of tall building.

• Journal of the Korean Geotechnical Society
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• v.18 no.3
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• pp.43-50
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• 2002

This paper describes a simplified numerical procedure for analyzing the response of bridge pier foundations due to riverbed scouring. A computationally efficient algorithm to analyze the behavior of a pile group is proposed by considering soil-pile, pile-cap, and pile-fluid interactions. The complex phenomenon of the pile-soil interaction is modeled by discrete nonlinear soil springs (p-y, t-z and q-z curves). The pile-cap interaction is considered by geometric configuration of the piles in a group and connectivity conditions between piles and the cap. The pile-fluid interaction is incorporated into the procedure by reducing the stiffness of the soil-pile reactions as a result of nonlinearity and degradation of the soil stiffness with river bridge scouring. Through the numerical study, it is shown that the maximum bending moment increases with increasing scour depth. Thus it is desirable to check the stability elf pile groups based on soil-pile and pile-cap interactions by considering scouring depth in the riverbed.

• The Journal of the Korea Contents Association
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• v.19 no.6
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• pp.450-460
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• 2019

This study analyzed the culinary arts major students' subjective perception toward capstone design subject which was thought by team teaching method through applying Q methodology. Generating future suggestions of the operation of the subject and finding common structure of students's responses are the main aim of this study. From the typological analysis, four types of common structures were found. There were Differentiation Curriculum Satisfaction Type(Type 1, N=14), Restaurant business plan Type(Type 2, N=5), Prefer franchise education Type(Type 3, N=3), Prefer menu development lesson Type(Type 4, N=3) and each type showed its own distinctive characteristics. In the future research, additional literature research and empirical study will be applied for adjusting and developing more sophisticate questions of Q methodology and analysing process for gathering diverse responses and specific analysis.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.833-841
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• 2023

The study is to suggest the example of convergence capstone design operation in department of early childhood education at a college and intellectual property rights application and registration. Based on key experiences such as practical training, students derived ideas for solving problems across the field related to young child, and overlaps with existing intellectual property rights ideas were verified. Linkage with industry and engineering experts was established for mentoring, after going through a refinement process, it contains the process by which five teams among the winning works of the school competition achieved the result of patent application and registration. Through this, we revitalize convergence capstone design education that goes beyond a creative and practical competency-centered curriculum and is linked to the performance of securing intellectual property rights.

• The Journal of the Korea Contents Association
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• v.17 no.6
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• pp.194-202
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• 2017

This study is a methodological study analyzing the results of applying capstone design to nursing education. Among the nursing college students who completed the fundamental nursing subject, the students who agreed to participate in the research were composed of the project team and proceeded as team activities. It was conducted through knowledge - team composition - topic selection / analysis - design / development - simulation - evaluation / feedback process starting from knowledge learned through fundamental nursing class. The research period was from January 1, 2015 to October 30, 2015 for 6 months. BBS (Bed Sore Socks) was developed for the prevention of pressure ulcers, and BBS was applied for seven days to randomly selected patients in the long term care facility. The incidence and pressure ulcer risk scores were assessed. The results of the pilot study showed that the intervention group had an effect on the incidence of pressure ulcer ($x^2=.40$, p = .500) and the pressure ulcer risk score (z = -.45, p = .690), but it was not statistically significant. Capstone design was trailed in the field of nursing education and produced the bed sore socks. In the nursing education, not many capstone design trails appeared yet, this study might be the first trail in the field of nursing, and it could be challenging for expanding of nursing education.

• Journal of Korean Society of Steel Construction
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• v.25 no.5
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• pp.555-567
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• 2013

Slim floor system using deep decks has been developed and employed in Europe to reduce the floor height of steel structures. Although long span buildings involving the issue of reducing floor height are being increasingly built in Korea, employing deep decks in more than 7m long span structures is likely to cause problems associated with excessive deflection. This study is applied to the long-span concrete casting of the deep deck plate usability of deflection due to bending and torsional instability of open cross-section, as a way to improve the problem of cap plates are suggested, and the optimum length of reinforcement and location are derived from theoretic estimation. The cap plates are placed on the deep decks with regular intervals to overcome the instability of open sections, improve the stiffness of the sections and control the deflection at the centers. The improvement in flexural capacity associated with the location of the cap plates and the length of reinforcement are verified through analysis and test.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.1
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• pp.302-309
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• 2017

The influence of the pile diameter, center to center pile spacing, internal friction angle of embankment soil, and height of embankment on the arching efficacy of the embankment pile was investigated. The arching efficacy, which was derived by the arch model developed in the embankment soil was calculated using two methods, one that considers crown failure of the arch and the other that considers load on the pile cap and critical relative spacing ratio for which the arching efficacy calculated by the two methods are the same. According to the computed results in this study, the arching efficacy calculated from a consideration of the load on pile cap governs when the relative spacing ratio becomes smaller and that calculated from the theory of crown failure governs when the relative spacing ratio becomes larger. The critical relative spacing ratio below which the arching efficacy calculated from a consideration of the load on pile cap governs the design decreases with increasing value, which is defined by the ratio of the pile diameter to the pile center to center spacing. Critical relative spacing ratios, which correspond to the values of 0.5 and 0.2 were 0.35 and 0.85, respectively. Considering the computed results, the critical relative spacing ratio decreases with increasing Rankine passive earth pressure coefficient and critical relative spacing ratios, which correspond to values of 5 and 2, were 0.23 and 0.85, respectively. The arching efficacy, which corresponds to the area ratio of 9%, was 54% and the one that corresponds to the value of 3 was 61%; the critical relative spacing ratios, which correspond to those arching efficacies, were greater than 0.5.