• Computers and Concrete
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• v.11 no.3
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• pp.183-199
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• 2013

To select a most desired mix proportion that meets required performances according to the quality of recycled aggregate, a large number of experimental works must be carried out. This paper proposed a new design method for the mix proportion of recycled aggregate concrete to reduce the number of trial mixes. Genetic algorithm is adapted for the method, which has been an optimization technique to solve the multi-criteria problem through the simulated biological evolutionary process. Fitness functions for the required properties of concrete such as slump, density, strength, elastic modulus, carbonation resistance, price and carbon dioxide emission were developed based on statistical analysis on conventional data or adapted from various early studies. Then these fitness functions were applied in the genetic algorithm. As a result, several optimum mix proportions for recycled aggregate concrete that meets required performances were obtained.

• Journal of The Korea Institute of Healthcare Architecture
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• v.15 no.1
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• pp.53-62
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• 2009

Healthcare facilities undergo substantial renovation and remodeling to accommodate changing technologies and regulatory requirements, thereby generating significant quantities of construction-related wastes, and subjecting building occupants to noise, dust, and other health impacting disruptions associated with construction. By designing flexible, adaptive, generic spaces, buildings can better respond to changes imposed by architectural composition of interpersonal and community space of hospital ward with minimum needs renovation and remodeling. This study focuses on the design principles of enhancing flexibility in architectural composition of interpersonal and community space of hospital ward. The purpose of this study is to provide fundamental data for designing interpersonal and community space of hospital ward through ecological flexible design principles with case on interpersonal and community space of hospital ward.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• no.1
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• pp.127-130
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• 2001

Suzhou historic gardens include classical gardens, places of interest and palaces built by hills and waters. They are geographically distributed in the ancient city and the suburbs. Considered as both chinese and world class historic cultural heritage, these precious tourist resources have been included in the systematic urban planning of Suzhou and they are an integral part of the urban green plan and symbol and characteristic of the urban view. These gardens are also important for tourist industry-one of the pillar industries Suzhou. Therefore, historic gardens play an especially important role in the city's continuous development and it becomes an important task to make good protection, planning, construction and management of these historic gardens.

• Journal of the Korean Institute of Landscape Architecture
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• v.23 no.2
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• pp.167-181
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• 1995

An Ecocomplex is proposed for ecological design of the estuarine environment of Han River, which is designed upon an alternative mamagement concept of estuarine environment. The concept reveals interrelationships among estuary, delta region and urban inland with inputs/outputs and feedbacks among them. The Ecocomplex emphasizes an integration of wastewater treatment with aquaculture, agriculture and recreation, and carries out ecological treatment, recycling, and harvest processes. A module of wastewater treatment pond system is employed in the Ecocomplex, which treats a flow of 3,786 ㎥/day and is composed of a four-facultative-pond series. Treatment ponds stabilize wastewater discharged from the urban area, and concurrently produce algae for commercial or recreational fish farming. Effluent from treatment and fish ponds is reused for agricultural production. Through the waste-algae-fish-vegetable-recreation processes, wastewater from the urban settlement is recycled back to the urban ecosystem. This resource-conserving design approach can maintain a sustainable urban ecosystem, managing an estuarine environment more naturally, healthly, and economically.

• Journal of the Korean Institute of Landscape Architecture
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• v.34 no.1 s.114
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• pp.37-47
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• 2006

Environment-friendly agriculture has not only the simple purpose producing foods but also the key roles of conserving rural environments, landscapes and sustainable land uses. In addition, environment-friendly agricultural areas and their landscapes are important factors representing uniqueness of rural areas. For these reasons, this study investigates the landscapes formed through environment-friendly agriculture and evaluates the economic values of the landscapes using CRM(contingent ranking method) which has been known as one of the practical methods in the field of environmental economics. Based upon a scenario that government introduces the ratio of environment-friendly agriculture to evaluate economic values, a survey was performed with 1,088 of rural residents throughout the country. The results of this study indicate that the economic value for conservation and maintenance of environment-friendly agriculture landscapes is 480 won per household/month/1% environment-friendly agriculture, and this can be converted into 829 hundred million won per 1% environment-friendly agriculture nationally.

• Journal of Korean Society of Rural Planning
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• v.18 no.3
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• pp.187-200
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• 2012

This article deals with rural village development project of Namsunghyun 'Gamggot(persimmon flower)' area, based on local tourism resources. For more efficient use of local tourism resources, questionnaire surveys for local residents and visitors were conducted. On the base of the results, the vision and objectives were established. And each items of project by division were also considered by the results of such surveys. Finally, priority scores of each items of project, based on importances and weighted value, were derived for more efficient propulsion of project and to construct sustainable rural community.

• International Journal of High-Rise Buildings
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• v.12 no.2
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• pp.153-162
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• 2023

Achieving sustainable spaces is one of the emerging trends of tall buildings regarding their significant impacts on the cities. Reducing energy consumption and material using is investigated as a widely used approach to achieve more efficient tall buildings. Defining more efficient geometries and form modifications have been adopted for this goal. In this paper the effect of plan shape and diagrid angle on structural efficiency of diagrid tall buildings have been studied. A parametric workbench is applied to generate and analyze models. The goal is to find effective form parameters resulting in more efficient forms. Respectively, all models were generated in Rhino/grasshopper architecturally and analyzed by a finite element plug-in structurally. Based on the results, steeper angles almost cause more displacements and needs to be more stiffened. it can be seen almost more sided models need less weight for the structures and it could lead to more efficient forms.

• Journal of Environmental Impact Assessment
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• v.30 no.6
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• pp.393-412
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• 2021

This study examines the assessment systems of LEED v4.1, an eco-friendly building evaluation system in the United States, and SITE v2, an assessment system for sustainable outdoor spaces, and then compares and examines them from the perspective ofrelevant laws and institutional guidelines and standards in Korea. The conclusion is as follows. First, the US eco-friendly certification system basically not only establishes an independent evaluation system according to the field of expertise, but also provides a sustainable city and community through response to the climate crisis and the comfort of the external space environment. It can be evaluated that securing the quality of life of healthy and happy city dwellers is the top priority. Second, Korea's Green Building Certification System (G-LEED) was basically based on the American LEED system, but it was judged that there was a fundamental difference. It was judged that there is a limitation in not being able to achieve an integrated approach through the participation of various expert groups and stakeholders, but also in the accumulation of more scientific and reliable data and information through the application of cutting-edge information and communication equipment. Third, in the case of external space in Korea, a sustainable assessment system has not been established, and not only is it dispersed in various legal and institutional guidelines, but also its effectiveness is judged to be very low. Therefore, it is judged that it is urgent to introduce and secure the applicability of SITES v2, a sustainable outdoor space assessment system in the United States. It was judged that the effectiveness should be secured through the upward adjustment of the minimum Ecological Area Ratio.

• The Journal of the Korea Contents Association
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• v.19 no.10
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• pp.32-44
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• 2019

Based on the characteristics of cultural expressions, this paper compares and analyzes the cases of representative commercial architectural spaces of six largest cities in China.In order to promoting the sustainable development of the indoor space culture of modern commercial buildings in China.Six cases were analyzed from the viewpoints of cultural tradition, locality, popularity, technology, and ecology. The results are as follows. First, the tradition of culture requires the emphasis on the traditional elements of specific areas in the interior space of commercial architecture.Second, the regional character of culture is closely related to the social and natural environment factors such as the economic development of the interior space of commercial architecture, historical intrinsic space, geographical environmental conditions, and climate.Fourth, the technicality of culture is to integrate construction method, structure form, and material with local culture into commercial architecture interior space.Fifth, cultural ecology places attention to placing plants in the interior space of commercial architecture and creating a healthy, pleasant and safe environment.

• Journal of The Korea Institute of Healthcare Architecture
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• v.17 no.4
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• pp.57-68
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• 2011

The purpose of this study is to provide the planning factors of housing for the disabled and elderly based on the inclusive housing design as sustainable neighborhood. The goal of inclusive design is to make buildings and communities more livable for all type of people. Inclusive design should embrace other good design goals and reinforce them, not work against them. To carry out this purpose, we should proceed in the following way: First, we deducted the four design factors (the basic, recommendable, adaptable, and residential factors) by reviewing the characteristics of inclusive housing concepts. Second, we analyzed the related foreign design standards and guidelines such as the ICC/ANSI A117.1 Type C Units (the United States, 2009), Lifetime Standard (the United Kingdom, 2010), and Livable Housing Design Guideline (the Australian, 2010) through four design factors based on inclusive design concepts. Finally, we suggested the housing design factors for the disabled and the elderly in Korea. To conclude, we can make the followings: It is important basic factor that the bedroom and bathroom layout closed to each other. Also, the bedroom has the proper height of light switches, outlets, and windows. The recommendable factors take into consideration stairs and ramp, if existent. The adaptable factors are closely related to domestic housing culture as well as residential factors. Proceeding from this fact, the livability for people with disabilities and older requires accessibility and adaptability that take into account public and efficiency considering the current trend of housing development and urban planning.