• International Journal of Precision Engineering and Manufacturing
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• 제9권3호
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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.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1503-1508
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• 2009

The paradigm of urban generation does not lie in physical development/maintenance such as urban redevelopment any more. The paradigm is shifting to balanced activation of administration / management functions including central commerce/business functions, broad culture/tourism functions, international functions and adequate level of residence functions. The urban regeneration project aims to restore functions of cities by physical/environmental, living/cultural and industrial/economical regeneration and is managed differently from existing projects in that it includes multiple sub-projects in it. The overall projects management should be by managing the value sought by the urban regeneration project and multiple other sub-projects. The objective of this study is to present various methods of value management in order to avoid conflicts between various objectives within the said project. It aims to provide the value management methods for decision making by understanding correlatedness between values of various projects and prioritizing them.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.174-178
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• 2015

This paper presents a new method for forecasting construction project cost and time at completion or at any intermediate time horizon of the project duration. The method is designed to overcome identified limitations of current applications of earned value method in forecasting project cost and time. The proposed method usesfuzzy set theory to model uncertainties associated with project performance and it integrates the earned value technique and the contractors' judgement. The fuzzy set theory is applied as an alternative approach to deterministic and probabilistic methods. Using fuzzy set theory allows contractors to: (1) perform risk analysis for different scenarios of project performance indices, and (2) perform different scenarios expressing vagueness and imprecision of forecasted project cost and time using a set of measures and indices. Unlike the current applications of Earned Value Method(EVM), The proposed method has a numberof interesting features: (1) integrating contractors' judgement in forecasting project performance; (2) enabling contractors to evaluate the risk associated with cost overrun in much simpler method comparing with that of simulation, and (3) accounting for uncertainties involved in the forecasting project cost.

• Journal of Construction Engineering and Project Management
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• 제9권2호
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• pp.25-51
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• 2019

Green building certifications are being adopted widely, and existing research continues to show an array of benefits to stakeholders of green certified buildings. However, little attention has been paid thus far to the effects these buildings may have on their surrounding neighborhoods economically. This research examined the effect of LEED and/or Energy Star certification on the neighborhoods surrounding certified office buildings from an economic standpoint with spatial and statistical analyses. This research showed the unit market value of LEED and/or Energy Star certified office buildings and the parameters of LEED and/or Energy Star certification had statistically a positive impact on the median unit market value of their neighborhood areas. The findings can provide useful insights into the possibilities for additional economic benefits of their neighborhoods, encouraging a win-win approach that enhances the local real estate market.

• Architectural research
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• 제21권2호
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• pp.41-48
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• 2019

The purpose of this study is to research and development of 'Korea B(Benefit)-impact Model' for Sustainable Development. A concept evaluation model is 'B(Benefit)-impact model' in U.S.A. We use the results of surveys that examined the importance of social value issues to stakeholders in Korea to implement the benefit-impact model in Korea. In particular, in this paper, we use the KSI(Korean Sustainability Index) survey data conducted by the Korea Standards Association to evaluate the social value of the construction industry for representative stakeholders in the construction industry. The social value pool and the activity indicator pool used for the survey are created based on relevant International Standards; ISO 26000, ISO 14001, ISO 37001. As a result, Korea B-impact model for construction industry included the following five core social value issues; Strengthen transparency of corporate management, Ensure fair employment and employment relations, Efforts to prevent corruption, Conduct fair competition, Efforts to prevent environmental pollution. In addition, the US B-impact model has three limitations. First, it is unclear whether the key indicators have been derived while considering all issues of social value. Second, US B-impact model indicators are developed by the social responsibility experts, so it is necessary to review by stakeholders in each industry. Finally, it would be more effective for companies to use the B-impact model index as a more detailed activity indicator. When developing a Korea B-impact model, the following methods are used to supplement it. First, we reviewed all social value issues using international standards. Secondly, we used the KSI(Korean Sustainability index) survey results to derive the importance of the social value issue of construction industry in Korea. Finally, we have clearly matched the activity indicators by social value core issues based on the GRI Standard so that companies can actually use the Korea B-impact model for the construction sector. The detailed development stages and results of this study are as follows;.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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• pp.21-23
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• 2010

This study was conducted to draw various decisive elements of a reasonable heat curing method and to examine the importance in deciding a construction method when constructing cold weather concrete. As a result, the items proposed as important elements at the time of decision of a heat curing method included economy, workability, maintainability, insulation capability, reduced construction period and usability. As a result of importance by items under AHP technique, it was found the most important element was insulation capability, followed by reduced construction period and workability. As a result of comparison of a heat supplying and a heat insulation method by dual bubble sheet differed 2 times as much as a heat supplying method, especially the evaluation degree by insulation capability and reduced construction period was high.

• 한국건설관리학회논문집
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• 제25권3호
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• pp.47-57
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• 2024

본 연구의 목적은 중대재해처벌법에 따른 건설 노동자의 중대재해인지 수준과 안전의식 수준 간의 상관관계를 분석하는 것이다. 건설 노동자, 건설 관리자, 안전 관리자를 대상으로 설문조사를 실시하였다. 이 연구의 결과는 다음과 같다. 세 그룹 간의 상관관계 분석 결과, 안전 관리자가 가장 높은 상관관계를 보였으며, 그 다음으로 건설 관리자와 건설 노동자가 이어지며, 세 그룹 모두 보통 수준의 상관관계를 나타냈다. 전체 그룹에서의 상관관계 분석도 유의한 상관관계를 나타내었으며, 참가자 수가 증가함에 따라 더 높은 상관계수가 관찰되었다. 또한, 상관계수의 유의성을 검증하기 위해 p-value와 유의수준(α)을 비교하였다. 결과적으로 유의수준인 0.05보다 작은 p-value를 얻어 귀무가설을 기각하고 대립가설인 "중대재해처벌법에 대한 인지 정도와 안전의식 수준 정도는 관계가 있다"를 채택하다. 따라서, 중대재해처벌법의 인지 정도와 건설 안전의식 수준은 관련이 있다는 결론을 얻었다. 이 연구의 한계점은 주관적인 지표를 기반으로 한 설문조사에 의존하였으므로, 질문 항목의 난이도에 변동성이 존재할 수 있다는 점이다.

• 대한토목학회논문집
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• 제33권2호
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• pp.757-769
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• 2013

건설엔지니어링 기업은 대표적인 지식기반산업으로서 무형자산의 평가 및 관리가 더욱 필요하다. 본 논문에서는 기업 특성을 고려하여 무형자산 분류체계를 작성하고, 설문과 인과지도구축을 통해 주요요소를 추출하여 건설엔지니어링 기업의 무형자산 측정을 위한 요소분류체계를 제시하였다. 기업가치 상승을 위한 무형자산 관리는 각 무형자산 세부요소 간 인과관계에 대한 이해가 뒷받침돼야 하므로, System Dynamics 분석을 통하여 인과관계를 파악하고 제시된 방법론을 검증하였다. 제시된 방법론을 통하여 건설 엔지니어링 기업의 특성이 고려된 무형자산을 인식하게 되어 건설엔지니어링 기업의 무형자산을 합리적으로 평가하는데 기여함으로써 건설엔지니어링 산업의 발전을 도모할 수 있을 것으로 기대된다.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.231-234
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• 2013

According to the recent development of USN technology, it has been applied in various fields of construction management. In particular, the concrete curing management using the wireless measurement system is actively being conducted. However, the existing method has limitations such as the reinstallation of temperature sensors and repositioning of repeaters. It is also not easy to acquire the measured data. Thus, this study focuses on the concrete curing management. This study proposes data acquisition method using the smartphone on construction site and tests applicability of the data measuring device and the smartphone. The test allows us to suggest the actual communication distance on construction site and to determine the correction value that is applied to the measured temperature. The data acquisition method proposed in this study is intended to enable appropriate management on construction site and will be able to be applied effectively to a variable construction site. It can also be used in all fields of construction management.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.541-544
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• 2003

건설 프로젝트 관리를 위한 정보시스템을 적용하고 있는 건설기업의 경우, 그 특성에 맞는 적절한 정보시스템 계획 방법이 필요하다. 건설관리 업무를 분석하여 업무의 특성을 파악하고, 정보기술적 측면을 함께 고려함으로써 정보시스템 계획이 이루어져야 한다. 따라서 본 연구에서는 업무의 특성에 따른 정보시스템화의 효과와 정보기술 적용의 가능성에 따른 기회를 분석하여 최종적으로 정보시스템화 기대가치를 평가하기 위한 모델을 제시하고자 한다. 정보시스템화 기대가치 평가 모델은 단위업무와 전보의 두 가지 관점에서 정보시스템화에 대한 기회와 효과를 평가하는 과정으로, 건설관리 업무의 정보시스템 계획을 위한 의사결정에 활용될 수 있다.