• Proceedings of the Korean Geotechical Society Conference
• /
• 2010.09a
• /
• pp.357-367
• /
• 2010

In this study, several design and construction cases of the pile bent system for bridges were introduced. The lateral displacement of the pile bent system is larger than the displacement of pile cap system, due to the smaller bending stiffness and the longer unsupported length. So, the analysis of the lateral pile displacement is main factor for the design of pile bent system and superstructure. For the accurate estimation of the pile displacement, an iterative analysis method was developed. The superstructure was analyzed regarding the pile foundation as $6{\times}6$ spring and the substructure was analysed using non-linear load transfer curves (p-y, t-z, q-z curve). And, to verify this analysis method, the estimated displacements are compared with the results of lateral load test. This analysis method is expected to be a viable alternative approach for the design of bridge foundation hereafter.

• Architectural research
• /
• v.12 no.1
• /
• pp.1-8
• /
• 2010

This research paper explores selected behavioral outcomes of a multi-sensory environment. An experimental study was conducted at a specialized facility for the ageing in Sweden. The objective was to explore the effects of agitated behaviors of ageing residents with dementia and to identify any short-term effects. Appointed nursing staff was instructed to record physically and verbally agitated behaviors on three occasions; pre-session, mid-session, and post-session. Over seven months, nine participants received sixty-one sessions in the multi-sensory room. ANOVA and Post hoc multiple comparisons were performed to identify the differences in mean between each session. Generally irritated/frustrated behavior and eating/drinking non foods revealed statistically significant differences, while there were no significant results in verbally agitated behavior. One short-term effect was observed in one agitated category; a reduction of generally irritated/frustrated behavior. These results suggest that the multi-sensory environment can have positive effects on some manifestations of agitated behavior. This study proposes that a multi-sensory environment may be recommended as an alternative intervention for physically agitated behavior among this category of residents. However, more research is needed to understand the specific effects and the best use of the multi-sensory environment for this population.

• Journal of The Korea Institute of Healthcare Architecture
• /
• v.12 no.3
• /
• pp.35-41
• /
• 2006

At the moment, a lot of interest in the research on Gnotobiotic Pigs are increasing in order to produce alternative human organs. So, it is very important to design and build proper housing facilities for Germ Free Pigs. Among the design issues related to Gnotobiotic Pigs' farms, circulation system takes a high position because it carries an important role in keeping the pig's housing environment aseptic. Considering those, this study aims to propose the guidelines for the design of circulation system in Germ Free Pig's facilities. The results of this study are as follows. At first, functional areas of Germ Free Pigs' facilities have been divided into three categories according to the clean level; aseptic area, semi-aseptic area, and non-aseptic area. Secondly, the basic principles of circulation system have been proposed. Finally, circulation system of Gnotobiotic Pigs' facility has been explored as a form of diagram according to the circulating subjects. These include human circulation, pig's circulation, and goods' circulation. This study has some limitations in that it is transcendent and lacks empirical evidence. Despite of some weaknesses, it is expected to give some useful guidelines for the design of circulation system in Germ Free Pigs' facilities.

• Proceedings of the Korean Institute of Interior Design Conference
• /
• 2007.05a
• /
• pp.119-124
• /
• 2007

This study focuses on the design guidelines for planning and implementing the spatial characteristics in the living environment for the New Silver-Generation through the case analysis of "Serviced Residence", which has recently become very popular due to active demands for handy functions and services in flew Silver-Generation living environment. Nowadays, with relaxation of the phenomenon of lack of available houses, the focus of the construction market has shifted from builders to customers. Also, with the advent of the New Silver-Generation with money to spend to improve the quality of their lives, there has been high demand for living environment that provides high-quality services for comfort and convenience. Means to provide high-quality services for comfort and convenience in New Silver-Generation environment warrant much consideration, and hence the current study on Serviced Residence, which has become very popular has been taken up. This study on Serviced Residence will point out the problems found in the current Silver Residence environment and it will serve as an alternative for the living environment of the Silver Generation.

• Journal of the Korean Solar Energy Society
• /
• v.23 no.1
• /
• pp.57-67
• /
• 2003

This study aims to presents Evaluation Method of Green Remodeling that analyze the value of environment through expense, using the method of life cycle cost and life cycle assessment simultaneously. The results of this study are summarized as follows. Evaluation Model developed in this study can convert economical value of environment into cost by integrating. In addition, the model can apply as a useful tool to estimation of economical design alternative as well as quantification of environmental loads and costs. Evaluation Model presented In this study observe energy consumption and the environmental load emission with qualification, it can forecast effect of environmental cost that cost estimation is expected to be added to energy cost rate by being possible. Synthetically, when Estimation Model and computer program that developed in this study is applies to the construction industry; reasonable management of environmental load is convenient at each step of Green Remodeling. In addition, at preliminary design phase, practical use may be possible by reasonable yardstick about various alternatives and improvement of design alternatives likewise by grasping environmental effect.

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.24 no.12
• /
• pp.3053-3060
• /
• 2000

Alternative formulation is presented for robust optimization problems and an efficient computational scheme for reliability estimation is proposed. Both design variables and design parameters considered as random variables about their nominal values. To ensure the robustness of objective performance a new cost function bounding the performance and a new constraint limiting the performance variation are introduced. The constraint variations are regulated by considering the probability of feasibility. Each probability constraint is transformed into a sub-optimization problem and then is resolved with the modified advanced first order second moment(AFOSM) method for computational efficiency. The proposed robust optimization method has advantages that the mean value and the variation of the performance function are controlled simultaneously and the second order sensitivity information is not required even in case of gradient based optimization. The suggested method is examined by solving three examples and the results are compared with those for deterministic case and those available in literature.

• Journal of Mechanical Science and Technology
• /
• v.17 no.12
• /
• pp.1969-1976
• /
• 2003

In the early phases of the product life cycle, Life Cycle Assessment (LCA) is recently used to support the decision-making for the product concepts, and the best alternative can be selected based on its estimated LCA and benefits. Both the lack of detailed information and time for a full LCA for a various range of design concepts need a new approach for the environmental analysis. This paper explores a new approximate LCA methodology for the product concepts by grouping products according to their environmental characteristics and by mapping product attributes into environmental impact driver (EID) index. The relationship is statistically verified by exploring the correlation between total impact indicator and energy impact category. Then, a neural network approach is developed to predict an approximate LCA of grouping products in conceptual design. Trained learning algorithms for the known characteristics of existing products will quickly give the result of LCA for newly designed products. The training is generalized by using product attributes for an EID in a group as well as another product attributes for the other EIDs in other groups. The neural network model with back propagation algorithm is used, and the results are compared with those of multiple regression analysis. The proposed approach does not replace the full LCA but it would give some useful guidelines for the design of environmentally conscious products in conceptual design phase.

• Korean Institute of Interior Design Journal
• /
• no.23
• /
• pp.124-131
• /
• 2000

In the nowadays years our city's housing environment which progresses rapidly social-economical development is posited the role in the nowadays multi-family housing brings about the individualism of the nowadays city, and makes muddy neighborhood meaning, and the quality of the nowadays city dwelling house environment becoming worse. This study was started with the cognition of the need of intermediate-space, in the our life in the neighborhood city. Intermediate-spaces, has same meaning to come into the action of consciousness of the neighborhood. For the improvement of the quality of city housing, we should cleary recognized the individual territory after we set the proper in intermediate-zone in the multi-family housing. Therefore, this study inquires ito the meaning of intermediate-zone, and catches the formation technique of intermediate-zone and the method of plan through the investigation of the use cases of the multi-family housing which is established intermediate-territory. and then I analyze the role of the formative space by this method. By this method, I grope for the effect of the use through the alternative plan of the design method of the intermediate-zone. If the methods of play use the role in the nowadays multi-family housing, high quality will build up.

• Journal of the Korean Institute of Rural Architecture
• /
• v.10 no.3
• /
• pp.9-18
• /
• 2008

The study was intended to suggest the design alternatives of rural village community center based on the design directions which were derived from the previous research, and to evaluate the alternatives by rural residents. The previous research was carried out to grasp the conditions and user's needs of rural village community center. The subjects were 100 residents who lived in rural area in Chonlabukdo. The interview was carried out using a questionnaire with model and isometrics of two alternatives, which showed floor plan and building shape. The subjects evaluated positively both of two alternatives, but slightly more preferred alternative | because of a spacious diningroom and an indoor toilet. The size of a livingroom and entrance, indoor toilet space/location, storage space and deck were significant elements in two alternatives according to t-test. They responded that both of indoor and outdoor toilet should be planned in rural village center. Also, each toilet and room for man and woman should be separated. Entrance space should be enough to take on/off their shoes in a sitting position and deck space was planned to intermediate between indoor and outdoor space.

• Korean Institute of Interior Design Journal
• /
• v.19 no.3
• /
• pp.57-66
• /
• 2010

Currently, the nature and ecosystem's destruction by human beings and science is appearing as a serious problem. The possibility of ecological aesthetics is being sought as one of operations for new society in the contemporary society that the nature and ecosystem are getting attention, The present research aims to examine the characteristics and its expression method by setting the ecological aesthetics as an alternative of the future design. The history, meaning, mental image and image of Korean traditional Space forming the balance and harmony with the Nature, etc., which are important design concepts, were deduced as the beauty of emptiness, the beauty of a gap, the beauty of harmony and the beauty of changing and the beauty of simplicity as characteristics of experiencing space. If the deduced expression is examined through a case analysis of traditional housing, the characteristics trying to unite with the Nature while seeing ecology and aesthetics as one root, which the ecological aesthetics regarding as a root. The ecological arts based on the ecological aesthetics enters inside the universal life of human beings by examining the ecological and aesthetic characteristics appearing in Korean traditional Space, and the arts will move forward in a direction that its function and role link with maintenance of total ecosystem. The space application possibility and expression characteristics of ecological aesthetics should be continuously researched.