• 건축역사연구
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• 제2권1호
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• pp.113-125
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• 1993

I focused my attentation on two points in this paper. Firstly, I explore the relationships between the competition system and the philosophical bases in economic and social doctrines which encouraged, the architectural profession which it supported. Secondly, I intend to describe the development of the modern competition system. The economic theories were applied to architecture; these were natural laws and laissez-faire. The principles of competition and progress were never doubted. Two developments aided architects in attaining both a sense of professional identity and a way of regulating the comprtition system; these were the founding of professional societies and the emergence of a professional architectural press. The first organized effort to control the competition system was made in 1839 by the Competition Committee of the Institute of British Architects, but the problems had remained virtually unchanged by the 1880s. A code of regulations was drawn up by the RIBA in 1872, but this were much like earlier codes and recommendations. From the 1890s, the RIBA established a permanent committee to review the conditions of all competitions and authorize members to participate; the measure was paralleled in various other countries, notably in the 1911 international regulations of the CIAM.

• 건축역사연구
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• 제8권4호
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• pp.9-24
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• 1999

This study is on architectural characteristics of the existing ㅁ-shaped Yo-Sa with two stories in Buddhist temple. The Yo-Sa has had the function of space for not only monasticism but also living of buddhist priests and been one of the important spaces in Buddhist temple from the beginning of it. The Yo-Sa with two stories appeared mostly in the later Chosun Dynasty, so the origin of the Yo-Sa with two stories is thought that it might relate to the circumstances of temples in the later Chosun Dynasty. Having got in the period of Chosun Dynasty, Buddhism lost the power that he has enjoyed since Korea Dynasty was established and the economic power of temples as well. Because of a change for the worse, the Buddhist priests should manage with reduced income and combine many buildings with various functions into a singular to overcome their circumstances. Therefore a waekened economic power might be a primary factor which urged to change form of Yo-Sa from one-storied to two-storied. The ㅁ-shaped Yo-Sa with two stories have the Dae-Bang-Chae for worship, Seung-Bang for Buddhist's living room in the bottom floor and garnering spaces to store up the agricultural produce, miscellaneous article, etc in the top floor. The composition methods depend on the condition of the lay of land, intentional design, and so on. Therefore, the ㅁ-shped Yo-Sa with two stories shows the diversity of space composition and architectural characteristics.

• Architectural research
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• 제23권4호
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• pp.67-73
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• 2021

An efficient demolition process requires the optimum method selection considering stability, economic feasibility, environment, and workability. In reality the construction cost and period are priority concerns, and safe construction methods are neglected. In addition, the choosing demolition method is often determined subjectively by experienced field engineers. This research paper presents a multi-criteria decision-making method using Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) to select the optimum demolition method. Three experienced demolition engineers' opinions were used to develop the TOPSIS model. The case study showed that the preferences of ten attribute measurements for demolition method selection. Authors suggested the most preferable demolition method for the case study project.

• International Journal of Air-Conditioning and Refrigeration
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• 제11권4호
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• pp.209-217
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• 2003

The term “energy saving is economical” is appropriate for the national view point and for design and assessment of one system, but not appropriate when choosing the system by comparing alternative systems in the early design step. Sometimes, non-energy saving system is more economical than energy saving system because of the price of electricity, gas or oil, which are used for operating the air conditioning system. Therefore, when designing a system, we should consider the efficient alternatives through economic assessment of energy saving method. However, research on non-operating number control of the system is not sufficient because it is more common to use operating number control of the system for most economic assessment of air conditioning systems. For this reason, this research can provide the economic operating number control method as basic design data. The data obtained through analysis of life cycle cost based on amount of yearly energy use, are produced by system simulation of HASP/ACLD/8501 and HASP/ACSS/8502 for six alternative heating$.$cooling systems based on seasonal air conditioning system, which is widely used for medium and large size office buildings in Busan.

• 설비공학논문집
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• 제20권11호
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• pp.746-751
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• 2008

The best plan to reduce the building energy consumption is that the insulation performance should be improved because the insulation and airtight of building envelopes have an effect on the energy consumption basically. New insulation materials, which have the high performance and are above insulation standard, have been developed steadily. Because there are not studies on the building energy rating system and economic evaluation considering new insulation materials, these matters should be studied. In result alternatives, which applied 6 high performance material each, reduce the annual heating energy and raise the building energy rating. Applying the vacuum insulation material(Case 1, 2) and vacuum or triple glazing can retrieves the investment with $120 and $140$\sim$150 per barrel each.

• 대한건축학회논문집:구조계
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• 제35권2호
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• pp.37-44
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• 2019

The primary objective of this study is to develop a prototype of all-in-one attachment-based PHC pile head cutting robot that improves the conventional work in safety, productivity, and quality. For this, the following research works are conducted sequentially; 1)literature review, 2)development of an all-in-one attachment-based PHC pile head cutting robot prototype, 3)performance evaluation of each device, 4)economic analysis of an automated method. As a result, PHC pile cutting level sensing device, PHC pile cutting device, PHC pile handling device are developed. Futhermore, working process of an automated method is developed based on result of performance evaluation. According to the economic analysis result, the cost of the automated method was 21.37% less than that of the conventional method, and the economic efficiency was also superior(ROR 215.44%, Break-even Point 5.52month). It is expected that conclusions for future improvements are used in the development of the all-in-one attachment-based PHC pile head cutting robot to practical use.

• 건축역사연구
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• 제8권2호
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• pp.73-85
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• 1999

An analysis of the courses from American architectural institutions during the period of $1890^{\sim}1950$ reveals an emergence of a distinction between a purely architectural and an architectural engineering discipline. A reflection of the economic growth, industrialization and urbanization of a nation; the education of the American architect during that period assumed a professional character. In contrast to European technical institutions which concentrate on the engineering aspects of architecture, American institutions developed a more comprehensive, design oriented curriculum within the framework of the American university system. The establishment of a system of formal education for architects and architectural engineers, replacing the tradition of apprenticeship, made it possible to train future professionals according to their ideals. But the objectives, contents and products of these curricula took on divergent characteristics from institution to institution. The growth of legal regulations( ie. ACSA, NAAB, NCARB, ASEE, etc.) governing the registration of architects and engineers, emphasized the legitimate concern within the profession to determine an acceptable standard of professional education. Such regulatory standards influenced the transition of architectural engineering education in institutions including the case of MIT. As a result, the ambivalence in architectural engineering programs found specific resolution in programs, such as architectural engineering, building engineering, construction or civil engineering.

• 자원환경지질
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• 제57권2호
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• pp.119-128
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• 2024

호주, 캐나다 등에서는 우리나라와 달리 석재·골재를 광물자원 중의 하나로 취급한다. 이러한 이유로 지방의 주정부 단위에서 광물자원 및 지질정보를 취급하는 기관이 석재와 광물자원 관련 정보를 통합하여 제공하고 있다. 이들 국가에서 광물 및 석재·골재 자원과 관련하여 제공하는 정보는 인터랙티브 맵, 지질도, 탐사 데이터 셋, 3차원 지질모델, 광업권리, 광산 및 광산관련 보고서 또는 요약자료 등으로 지방정부 및 지질조사기관의 웹을 통해 이루어지고 있다. 반면 한국의 경우 국내 법률에 따라 석재·골재는 광물자원과 분리되어 별도로 관리되며, 이에 따라 관련 정보도 한국광해광업공단, 국토교통부, 산림청, 한국지질자원연구원 등 여러 기관으로 분산되어 관리되고 있으며, 통합된 정보를 제공하고 있지 못한 상황이다. 따라서 석재·골재 자원의 확보와 효과적 활용을 위한 종합정보관리체제의 구축을 위한 거버넌스 개편과 정보체계화 구축을 위한 정책 및 제도 개발이 필요한 상황이다.

• Structural Engineering and Mechanics
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• 제47권2호
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• pp.287-305
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• 2013

Economic performances of consecutive multi-span suspension bridges are studied. The material amount and cost estimation formulas of the bridges have been derived in the part 1 of the study. A parametric study is carried out based on the formulas for investigating the different factors' effect on the bridge cost. The factors include the bridge sag, the bridge span, the bridge foundation and the environment condition, etc. Then, an economical layout of the bridges is proposed for different conditions. Lastly, a selection of suspension bridge types is discussed based on the economy of bridges.

• 한국지열·수열에너지학회논문집
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• 제15권4호
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• pp.16-23
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• 2019

Renewable energy systems are essential for the realization of zero energy building (ZEB). Moreover, the integrated system using solar and geothermal energy has been developed for heating, cooling and power of the building. However, there are few studies considering various design factors for system design. In this study, in order to develop the optimal design method for the system, the performance of the system was quantitatively compared and analyzed through dynamic simulation. Moreover, economic analysis was conducted based on the results of system performance. Through the performance and economic analysis results, the optimal design method of the tri-generation system was proposed.