• Title/Summary/Keyword: construction research

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Present and Prospect of Clothing Construction Research - Focus on academic associations' publication - (의복구성학 분야의 연구 현황과 전망 - 학회지를 중심으로 -)

  • Kim, Seonyoung
    • Journal of Fashion Business
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    • v.20 no.5
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    • pp.102-114
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    • 2016
  • The purpose of this study is to enable a scientific and rational approach for future research agenda setting in the clothing construction field. Through analysis of research papers on clothing construction published in domestic academic journals during the recent decade, the research trend of clothing construction in respective academic journals, research subjects, and research contents were grasped thoroughly. From all domestic academic associations' publication on garment/clothing and textiles/fashion, 7 academic journals were selected as subjects of research, in order to compare and analyze the research trend in the last ten years. The ten-year period ranged from April 2006 to March 2016, and a total of 735 papers published on clothing construction were used for analysis. The number of publications in the clothing construction area during the last decade has decreased, which is due to the increase in the number of clothing and textiles fashion-related academic journals, other than the 7 journals analyzed, and since the number of papers published in international academic journals has also increased. Body type, patterns, fitting test, and functional clothing accounted for the highest proportion of research themes in clothing construction. In terms of body type, there was an increasing tendency towards usage of 3D body measurement. In the patterns area, the 3D virtual dressing system was actively used. For functional clothing, sportswear, protective clothes, and innerwear were most widely researched, and ergonomic design together with smartwear was actively studied.

A Study on Development of Construction Standard Production Rates and Cost Analysis for Off-Site Construction (OSC)-Based PC Structure Construction Costs - Comparison with RC Method - (OSC기반 PC구조 공사비 산정을 위한 품셈개발 및 공사비 분석 - RC공법과 비교 -)

  • Lee, Hansoo;Lee, Chiho;Han, Heesu;Lee, Jeongwook
    • Korean Journal of Construction Engineering and Management
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    • v.25 no.2
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    • pp.56-68
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    • 2024
  • A construction standard production rates system for the factory built and on-site installation phases of OSC (Off-Site Construction)-based precast concrete (PC) structures in apartment buildings was recently proposed to establish an objective cost standard (Lee et al., 2021). In addition, the Korean government has taken steps to improve the institutional foundation for the systematic calculation of PC construction costs such as revising construction standard production rates for major components that can be applied to the on-site installation phase of PC method. In this study, we analyzed the results of a field survey of apartment building PC structures and collected expert opinions to develop factory-built and on-site installation standard production rates that can be applied to apartment building PC method. We also propose directions for improving the standard production rates so that they can be applied to the site and component of apartment buildings by comparing them with the current standard production rates. This study also derived the cost characteristics and cost reduction measures of PC construction by calculating the construction costs using the developed rates and comparing the construction costs with the RC methods of apartment buildings of the same scale. The construction standard production rates for PC construction derived in this study are expected to contribute to the spread of PC construction by ensuring the objectivity and consistency of the results of PC methods cost estimation.

The Analysis about Construction Costs and Profitability of Direction between Subcontracting Construction in General Construction Industry (일반건설업의 직접시공과 하도급시공의 공사원가 및 수익성 비교분석)

  • Hwang, Ug-Sun;Lee, Hyun-Suk
    • Korean Business Review
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    • v.19 no.1
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    • pp.25-34
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    • 2006
  • This research executed research that analyze construction cost and profitability through construction example of direction and subcontracting construction based on common private construction less than 3 billion. The results of this research, is summarized as follows. (1) Analyzed profitability about construction gross and operating profit of direction and subcontracting construction. The construction gross profit rate is 15.2% direction construction, subcontracting construction was analyzed by 1.3% high by 16.5% subcontracting construction, and the operating profit rate is 9.4% direction construction, subcontracting construction was construed by 2.3% high by 11.7% subcontracting construction. (2) Analyzed profitability about operating profit before and after deduction of 4 insurance cost of direction construction. The direction construction operating profit rate is 9.4% before deduction of 4 insurance cost, after deduction was construed that is 7.3% and operating profit rate difference after and before deduction was construed that is 2.1%. Therefore, subcontracting construction (operating profit rate 11.7%) was analyzed that last operating profitability after 4 insurance cost deduction produces more 4.4% about direction construction.

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A Study on the Evaluation for Energy Characteristic of Absorber Floor Insulation of Apartment House (공동주택 층간단열 완충재의 열에너지 특성의 관한 연구)

  • Choi, Dong-Hyuk;Choi, Gyoung-Seok;Kang, Jae-Sik;Lee, Seung-Eon;Cho, Woo-Jin
    • Proceedings of the SAREK Conference
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    • 2009.06a
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    • pp.712-717
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    • 2009
  • Ondol is a tradtional Korea heating system with a long history. The ondol heating system is a default in ordinary houses and high-rise apartment alike. But Intensified Architecture Law insulation standard can't satisfied standard insulation only light weight concrete in ondol. The between light weight concrete and slab apply EPS insulation is construct for generate a method of construction. The standard insulation for floor heating system is responsible but complicate construction thermal transmittance and absorber, deteriorate the cost and decreasing the performance insulation & impact floor sound. In study on the evaluation decrease heating-load of floor construction of the insulation & absorber that improvement floor a Apartment house.

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Analysis of Business Cycle Factors and Occupational Accidents in Construction Industry (건설업 산업재해 발생의 경기적 요인 분석 연구)

  • Myungjoong, Kim;Sunyoung, Park
    • Journal of the Korean Society of Safety
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    • v.37 no.6
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    • pp.32-39
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    • 2022
  • This study analyzed the relationship between occupational accidents in the construction industry and business cycle factors. Multiple regression analyses were conducted to achieve the research purpose; additionally, time-varying parameter estimations were performed to interpret the results. The results obtained for the construction industry revealed a statistically significant relationship between occupational accidents and wage increase rate, unemployment, construction starts, and other factors. The wage increase rate plays a role in reducing occupational accidents because efforts are made to prevent accidents owing to the increase in income loss due to accidents and the demand for increased safety levels. The number of construction starts affects occupational accidents with a time lag of 1 to 2 or 4 months; therefore, it is likely to be used as a leading indicator for estimating fatal accidents in the construction industry. This study highlighted the importance of monitoring socioeconomic changes that could affect the working conditions of workers and workplaces, and production activities in the workplace for the effective prevention of occupational accidents. This study also reveals the necessity of developing a method to operate prevention projects flexibly and the seasonality of industrial characteristics, particularly those of the construction industry where the highest number of fatal occupational injuries occur.

Robotic Automation Technologies in Construction : A Review

  • Chu, Baek-Suk;Kim, Dong-Nam;Hong, Dae-Hie
    • International Journal of Precision Engineering and Manufacturing
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    • v.9 no.3
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    • pp.85-91
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    • 2008
  • Robot technology is a remarkably interdisciplinary research area, one that can be employed in various industrial fields as well as higher value-added fields. The construction industry, on the other hand, has been known as one of the most difficult research fields to apply robotic schemes. Therefore, applying robot technologies in the construction industry is quite a challenging topic. This paper aims to introduce the progress of automated robotic systems in construction fields, namely with respect to construction robots. While construction robots have a very wide range of application depending on the huge market size of the construction industry, there still exist a lot of problems such as highly risky working environment and inefficiency due to the labor intensive characteristic. In order to solve these problems, a variety of construction robots have been developed and, in this paper, the current state of the robotic systems for construction works and the vision of future robot technology in the construction field are introduced.

Correlation Analysis between Inventory data and danger grade of Cut slope in Chungcheongdo (충청도 내 일반국도 절토사면의 현황자료와 위험도간의 상관성분석)

  • Kim, Jin-Hwan;Rhee, Jong-Hyun;Kim, Seung-Hyun;Lee, Jung-Yup;Koo, Ho-Bon
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.10a
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    • pp.980-983
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    • 2008
  • KICT has been carrying out inventory research on the cut slopes of national roads. Inventory research results are basic data used in cut slope management system. Inventory data are classified by general status, cut slope characteristics and inspector opinion. Cut slope inventory data are utilized to figure out dangerous slopes and decide survey ranking of detailed safety diagnostication. This paper will draw dangerous cut slope and more important inventory data in Chungcheongdo via correlation analysis.

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Quantified Impact Analysis of Construction Delay Factors on Steel Staircase Systems

  • Kim, Hyun-Mi;Kim, Tae-Hyung;Shin, Young-Keun;Kim, Young-Suk;Han, Seungwoo
    • Journal of the Korea Institute of Building Construction
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    • v.12 no.6
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    • pp.636-647
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    • 2012
  • Construction projects have become so large, complicated and incredibly high-tech that process management is currently considered one of the most important issues. Unlike typical manufacturing industries, most major construction activities are performed in the open air and thus are exposed to various environmental factors. Many studies have been conducted with the goal of establishing efficient techniques and tools for overcoming these limitations. Productivity analysis and prediction, one of the related research subjects, must be considered when evaluating approaches to reducing construction duration and costs. The aim of this research is to present a quantified impact analysis of construction delay factors on construction productivity of a steel staircase system, which has been widely applied to high rise building construction. It is also expected to improve the process by managing the factors, ultimately achieving an improvement in construction productivity. To achieve the research objectives, this paper analyzed different delay factors affecting construction duration by means of multiple regression analysis focusing on steel staircase systems, which have critical effects on the preceding and subsequent processes in structure construction. Statistical analysis on the multiple linear regression model indicated that the environment, labor and material delay factors were statistically significant, with 0.293, 0.491, and 0.203 as the respective quantified impacts on productivity.

A Construction Supply Chain Management Process with RFID/WSN-based Logistics Equipment

  • Shin, Tae-Hong;Yoon, Su-Won;Chin, Sangyoon
    • Journal of Construction Engineering and Project Management
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    • v.2 no.4
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    • pp.11-19
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    • 2012
  • Construction supply chain management (CSCM) has become one of the critical factors that determine the success of a construction project as it becomes increasingly complicated and mega-sized. Particularly for high-rise or mega-sized building construction, just-in-time supply chain management is required due to lack of storage space and effective logistics for construction components and materials at a construction site. Despite the fact that research and development of radio frequency identification (RFID) and wireless sensor network (WSN) technology have been performed, construction project managers still need to carry mobile devices and check material and component flow at each stage of the supply chain process. This research proposes that the equipment used in the construction supply chain process, such as movers, trailers, gates, and hoists, can become main actors in the supply chain process using RFID and WSN technologies. And the proposed equipment and process focused on a solution to the redundancy identification problem, which has been observed in operations that use RFID/WSN-based processes for construction logistics. This paper also presents issues identified through verification and validation of the research results and proposes further studies.

A Trend Analysis on the Research of Clothing Construction in Korea - for the recent ten years ($1996{\sim}2005$) -

  • Li, Eun-Ji;Shim, Boo-Ja
    • Journal of Fashion Business
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    • v.10 no.6
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    • pp.63-78
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    • 2006
  • The purpose of this research is to propose the scientific and rational establishment of research projects and directions for research by analyzing the research trends on clothing construction. The 689 papers in the field of clothing construction are selected among 5433 papers published within the recent ten years (1996-2005) in Journal of the Korean Home Economics Association, Journal of the Korean Society of Clothing and Textiles, Journal of the Korean society of costumes, Research Journal of the Costume Culture, Journal of the Korean Society of Clothing Industry and Journal of Fashion Business. The trend of researches on clothing construction is analyzed by classifying the topics by design, body type, pattern, size of apparel, fitting of clothing, protective clothing and functional clothing, and the others, and the results are as follows. The frequency order of the studies in the field of clothing construction is body type (32%) > pattern (24%) > size of apparel (13%) > protective clothing and functional clothing (10%) > the others (8%) > design-related clothing construction (6%) > fitting of clothing (4%) > sewing (3%). The major areas of research are body types, pattern, and sizes resulting from them. Most of researches are focused on women, and researches on men are relatively lacking. In addition to the deficiency of men-related research, Moreover, researches on characteristics of body types and on corresponding sizes of consumers in the target countries of export are necessary when the reality of Korean clothing and fashion industry that depends more on foreign demand than domestic demand is considered. For production of segmented and specialized results from clothing construction research, related tools such as CAD, 3D shape systems and dress form should be developed and utilized to contribute to precision of research results.