• 제목/요약/키워드: Construction Period

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BTL 적용 교육시설의 최적 건축공법 평가에 관한 연구 (A Study on Evaluation of Optimal Construction Method of BTL Projects - Focused on Educational Facilities -)

  • 박유영;조봉호;김기현;이춘경;박태근
    • 한국건설관리학회논문집
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    • 제10권3호
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    • pp.22-31
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    • 2009
  • BTL사업 형태로 발주되는 교육시설의 공사에서는 소요 공기 최소화와 임시교사 설치로 인한 별도의 비용 소모, 그리고 학기 중에 학교 사용자들이 겪는 불편사항으로 주무관청, 민간사업자 그리고 학교사용자의 갈등이 깊어지는 문제가 발생하고 있다. 본 연구에서는 이러한 당면 과제를 공법적인 측면에서 해결하고자, 기존 학교 공사에 일반적으로 적용되는 RC공법과 최근 몇 년 사이에 교육시설의 대안공법으로 주목받고 있는 모듈러 공법을 포함한 몇 개의 대안을 설정하고 교육시설의 BTL사업에 적합한 건축공법을 제안하였으며 각 대안에 소요되는 공사비를 산출하고 공사기간을 분석하여 이를 평가하였다.

벽체철근 일반조립과 부분 선조립 공법의 작업시간 비교에 관한 연구 (The Comparison of Work Time between Field Fabrication Method and Partial Prefabrication Method of Rebar work)

  • 김영길;김광희
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 추계 학술논문 발표대회
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    • pp.12-13
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    • 2018
  • Reinforced concrete works account for 40 to 50 percent of the total construction work. However, the shortage of construction workers is a problem in the delay of the construction period of reinforced concrete. The partial rebar prefabrication is one of the ways to shorten construction period. Thus, this study compared the partial rebar prefabrication and field fabrication method through work sampling. As a result, the partial rebar prefabrication showed a significant decrease in time compared to field fabrication method. As a result of this study, it is expected to be used as a reference for the efficient selection of reinforced concrete methods.

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실내건축의 작업환경 개선을 위한 기본적 관리방안에 관한 연구 (A Study on the Environmental Improvement in the Interior Construction Fields with the check-list)

  • 이용의
    • 한국실내디자인학회논문집
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    • 제9호
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    • pp.10-17
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    • 1996
  • With the ever-increasing important of high-speed information in society as we move towards the 21 st century. Interior design and it's working condition has been changed a great deal included a sort of each special character and make a difference against the others. It used to be find a great poles asunder of worker's safety and project quality according to the environmental dimension of interior construction field as if they should be a pleasantness or poor condition. This research aimed to improvement of environmental construction field of interior with construction engineers and particular interior labors in 4 phases as : ⅠThe preparatory phase : -Secure a Budget, Environmental safety supervisor -Fix of Design quality, Construction period. -Choice of Construction method, Sub constructing Ⅱ. Starting work phase ; -Capacity , Safety of temporary power line. -Carriage, Stock of Material -Safety of Electronic tools, -Personal protector. Ⅲ. Working period ; -Ventilation, I illumination of working place. -Measurement of environmental working condition Ⅳ.Finish working phase ; -Analysis of measurement data. -Evaluation and making up for the weak point. -Keeping data.

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Research on the Urban Ecological Space Changes under Modern Passive Industrialization Case Study of Zhengzhou City in China

  • Yang, Juntao;Baek, Seungman
    • Architectural research
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    • 제23권2호
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    • pp.29-37
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    • 2021
  • Early in the communist era, many cities in modern China experienced a special period of passive industrialization during which the construction of urban spaces laid the spatial urban foundation. During this period, the city construction was carried out rapidly under the administrative intervention of the government. The passive industrialization caused by taking economic construction as the center made the city construction deviate from the correct track and resulted in a variety of problems. Focusing on ecological space change, this paper selects Zhengzhou as an example of many similar cities in China, and analyzes the impact of passive industrialization on urban ecological spaces from the perspectives of city scale, city layout and city construction management system. The analysis results reveal that the construction of urban ecological space under the influence of passive industrialization induced a lagging characteristic, led to insufficient integrity of urban ecological space, and placed great pressure on the urban environment. Finally, the paper puts forward some methods to optimize the urban ecological space.

개항(開港) 이후(以後) 대구지역(大邱地域) 근대주거건축(近代住居建築)에 관한 연구(硏究) (A Study on the Modern Domestic Architecture in Taegu Area after the End of the 19th Century)

  • 윤재웅
    • 건축역사연구
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    • 제1권2호
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    • pp.85-100
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    • 1992
  • This Study is to analize the transfiguration of the domestic architecture in the process of modernization. Thirty two houses which were located in Taegu province and constructed during the period from 1886 to 1945, were surveyed and analized about the characteristic and their transfiguration. The modern domestic architecture of Taegu province had been constructed greatly by the missonaries and Japanes. The history of development of modern houses in Teagu province can be devided into three period in accordance with the economic policy, housing style and the method of construction. The first period (1886-1910) was the beginning of the modern house. Most of the mission houses of that period were made with brick structure of korean-western style or colonial style. In the second period (1911-1926), colonial, Japanese-western, Japanese housing style were co-exited in Teagu province. During the third period (1927-1945) new method of construction using reinforced concrete and mortar was introduced, therefore the houses become row house (a two or three-family house) and much simpler.

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장주기파의 효율적인 제어를 위한 이열잠제의 최적간격 (Optimum Inner Width of the Submerged Breakwater with Two Rows for the Controlling Long Period Waves)

  • 윤덕영;허동수;김도삼;강주복
    • 한국항만학회지
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    • 제9권2호
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    • pp.51-64
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    • 1995
  • Generally, it is pointed out that the submerged breakwater with one row can not regulate the long period waves efficiently, because the crown width is very shorter than the wave length of the long period waves. Therefore, the wide crown is needed to raise the controlling efficiency for the long period waves. This study picks up the submerged breakwater with two rows which has smaller construction materials comparing to the one row and discusses the wave controlling function for the long period waves. Judging from the results obtained by using the strict dividing region method, the submerged breakwater with two rows can more regulate the long period waves than one row can, especially, in case that crown width and inner width of its construction come to be wider.

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EVALUATING PRODUCTIVITY-AFFECTING FACTORS ON FINISHING WORKS IN HIGH-RISE HOUSING CONSTRUCTION

  • Chi-Joo Lee;Jae-Jun Kim;In-Suk Park;Sang-Hyo Lee;Yoon-Sun Lee
    • 국제학술발표논문집
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    • The 2th International Conference on Construction Engineering and Project Management
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    • pp.398-406
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    • 2007
  • Constructing high buildings is a global trend, and skyscrapers for residing are also increasing. But a period of works for finish construction is different depending on a company while a period of works for frame construction of skyscrapers for residing in the country is regular when considering a difference of a method of construction, and the increase of repeated construction for high buildings and number of related process for finish construction are stressing the importance of improving productivity through construction management and plan for works. Because there are many compositive factors affecting productivity other than technical factors, we should intensively study the way of improvement and prevention preferentially through analyzing factors affecting productivity. So in this study, we present important management factors for making systematic strategy and plan for improvement of productivity by finding factors affecting productivity depending on the degree of importance unifying factors affecting productivity of plan factor(internal factor of construction process) and management factor(outer factor of construction process).

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건설업 산업안전보건관리비 사용 실태조사 및 분석 (Analysis and Survey on Occupational Safety and Health Management Expenses in the Construction Industry)

  • 강성윤;오세욱;김창원;정기효
    • 대한안전경영과학회지
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    • 제25권2호
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    • pp.113-120
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    • 2023
  • Occupational safety and health management expenses in the construction industry are statutory and separately included in the cost statement to prevent occupational accidents and health problems. The expenses are determined by multiplying the standard amount by the rate decided according to construction types and scales. However, the current expense appropriation method does not properly reflect the recent changes in the construction industry such as industry size, industry diversification, and social atmosphere about safety reinforcement. This study surveyed 1579 questionnaires in total and analyzed expense execution rate and proportion of each expense category. The expense execution rate was relative higher in complex construction (e.g., heavy construction = 126%, civil engineering = 125%) and long-period project (equal to or over 48 months construction = 133%) compared to general construction (98~116%) and short-period project (less than 48 months construction = 115%). The proportion of spending expenses was higher in the category of safety manager labor costs (25~52%), safety facility costs (22~40%), and personal protective equipment costs (10~25%). The analysis results of the study can be utilized in revising the standard expense appropriation method by reflecting the current usages of the occupational safety and health management expenses in the construction industry.

An Analysis on the Labor and Capital Productivity of the Construction Industry

  • Choi, Min Soo;Kim, Moo Han
    • Architectural research
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    • 제7권2호
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    • pp.91-96
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    • 2005
  • The purpose of this study is to clarify the reality of labor and capital productivity in the construction industry through an industry-level approach and to analyze the relationship between labor and capital productivity using a Cobb-Douglas production function. According to the research results, the construction industry has shown a very high capital productivity, while labor productivity has kept up a low level during the 1980s and 1990s. The reason was because of the lack of skillful construction workers and the decrease of capital. Meanwhile, the construction productivity has greatly increased since 2000 when there was no change in wages. This was because of a large inflow of low-wage foreign workers while the amount of value added has dramatically increased due to the liberalized sale price of apartment buildings. According to the analysis by the Cobb-Douglas production function, the elasticity coefficient of V/L to K/L in the construction industry had decreased from 1.1663 in the $1^{st}$ period(1971-1988) to 0.4465 in the $2^{nd}$ period(1989-1997), and to 0.1664 in the $3^{rd}$ period(1998-2003). Such a result means that the allocation of labor has gradually increased while the allocation of capital has decreased. Moreover there was a big increase in allocation of labor after 1998 due to the excessive deterioration of capital. In conclusion, in order to raise the construction productivity and to avoid labor-intensive production methods, investment for capital should be more increased. In particular, new machinery and equipment that can actually substitute human labor in construction sites should be more developed and applied to construction sites.

건축공법 내부 리스크 분석에 관한 연구 (A Study on the Risk Analysis of Construction Method)

  • 윤여완;양극영
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2002년도 학술.기술논문발표회
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    • pp.117-121
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    • 2002
  • The purpose of this study was to Identification the Risk of construction method to protect and reduce the risk of construction period. For this study we are using the pre and during construction period Inspection list. The inspection list was used by construction company for check a flaw of Construction field. So we rearrange the individual item of inspection list to match the Risk factor. This inspection list usually has the difference of importance because this list is not made by Method which is not focused on Method. Therefore, To find the difference of these importance, We surveyed this matter by doing interview of specialist group. To find the application of field and the possibility of measurement of Risk status, We tested Risk occurring frequency and it's strength by checking the level of Risk. The results of this study were as follows; Each Method Check List made out through the rearrangement of Construction Inspection list which used in construction company. To solve and compensate the matter which happened by changing the each Method Check List to each General Inspection List, we added the each Method Check List by checking the importance of check list of each process. By doing this, The Check List for finding Risk level of Method was created by using the check list of each Method.

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