건설현장배치 수준의 정량적 평가: 사용성평가 방법을 활용하여

박성훈,김태완,손보식 한국건설관리학회 2022 한국건설관리학회 논문집 Vol.23 No.5

Construction site layout is attracting attention as efficient use of construction site space greatly affects the duration and cost of the overall construction. Therefore, there are many studies that automate and optimize construction site layout planning. However, the usability of construction site, which consists of goal variables of the studies, has still been unknown. Therefore, the authors present the evaluation criteria for usability of construction site layout and evaluate the usability of domestic construction sites through user survey. Furthermore, the difference in usability between construction site managers and construction site workers was confirmed. As a result of the survey, domestic construction site layout had a low effectiveness and had the lowest score in the environment category. In addition, construction site workers scored lower overall than construction site managers. Through such usability evaluation results, it contributed to the construction site layout theory by assessing current construction site layout practice and suggesting an improvement direction for automating site layout planning.

IT 기술을 이용한 거푸집 동바리공사 안전관리 제안

전경덕,신승중 한국인터넷방송통신학회 2020 한국인터넷방송통신학회 논문지 Vol.20 No.6

건설공사에 있어 가설공사는 그 중요성에 비해 전체공사에 차지하는 공사 금액이 낮고 공사 완료 후에는 철거되 므로 다른 공종에 비해 상대적으로 비중이 작게 취급 되는 공종이다. 실제 현장에 근무한 건설기술자들은 공사의 품질과 공사의 안전을 확보하기 위해 여러 공정중 가장 중요한 공종으로 가설공사의 안전을 이야기 한다. 하지만, 가설공사는 공사 진행에 따라 공사현장 여러곳에서 동시에 여러 종류의 가설재가 설치되고, 그것을 사용하여 본 공사가 진행되기 때문에 안전관리가 어려운 것도 사실이다. 건설공사의 안전사고는 거의 가설공사에서 이루어진다고 해도 크게 틀리지는 않는다. 최근 들어 건축물이 대형화, 다양한 복합용도, 대규모 지하공간의 굴착. 초고층으로 바뀌어가는 건설 추세로 보 아 가설공사의 중요성과 안전성은 절대 소홀히 할 수 없다. 본 연구의 목적은 IT 기술을 이용하여 건설공사에서 사용되 는 가설자재중 동바리의 안전 확보를 연구목적으로 하며 가설공사의 안전사고를 방지하는 안전관리를 제안 하고자 한다. In terms of construction work, the construction cost is lower than the importance of the construction, and since it is demolished after the completion of the construction, it is treated as a relatively small proportion compared to other construction types. Construction engineers who actually worked on the site talk about the safety of the construction work as the most important work of the various processes to ensure the quality and safety of the construction work. However, it is also true that safety management is difficult for temporary construction because various types of temporary materials are installed at various sites at the same time as construction progresses, and the main construction is carried out using them. Safety accidents in construction work are not much different even if they are carried out in temporary construction. The importance and safety of construction work cannot be neglected in view of the recent trend of large-scale construction, multi-purpose, excavation of large-scale underground spaces, and construction trends that are changing to skyscrapers. The purpose of this research is to secure the safety of Dongbar among the temporary materials used in construction work by using IT convergence technology, and to propose safety management to prevent safety accidents in the construction work.

건설중재 활성화를 위한 시스템 구축방안 연구 : 미국의 건설중재운영시스템을 중심으로

김석철 韓國仲裁學會 2004 중재연구 Vol.14 No.1

This paper suggests the establishment of construction arbitration tribunal in The Korean Commercial Arbitration Board or the construction arbitration institution under the Ministry of Construction for effective system of Construction Arbitration. Our conclusion tells that it is desirable to establish construction arbitration institution under the Ministry of Construction upon the result of analyzing some factors such as participation of construction workers, sophistication of construction field. In contrast, it is more desirable to establish the construction arbitration tribunal in The Korean Commercial Arbitration Board when we consider the feasibility, sophistication of ADR, organization, rules, arbitrator availability, internationalization Therefore, our final suggestion is to establish construction arbitration tribunal in The Korean Commercial Arbitration Board for effective system of Construction Arbitration. More detailed are as follows: ■ Establishment of the committee for resolution of construction disputes consisting of experts and specialists from construction-related institution, union, law firm and universities. ■ The committee manages finance, rules on construction arbitration and arbitrator members. ■ Establishment of intermediation team, construction arbitration team, housing arbitration team, real estate arbitration team under the construction arbitration tribunal ■ Establishment of a committee of arrangements consisting of experts and specialists from The Korean Association of Arbitration Studies, Korea Arbitrators Association, The Korean Commercial Arbitration Board, The Construction Association of Korea in order to accomplish effective system for construction arbitration.

신라 월성 성벽의 구간별 축조 공정과 왕경의 축성 기술

장기명 한국상고사학회 2023 한국상고사학보 Vol.120 No.120

In this article, the construction process was analyzed by dividing Wolseong, a royal castle of Silla, by construction section. By comparing Dodangsan Fortress and Namsan Fortress, it was intended to reveal the construction technology of Silla Wanggyeong. In addition, in order to see if the construction technology of the Wanggyeong Fortress was confirmed in other buildings, the exchange of fortification technology was reviewed by comparing tombs and embankments. Wolseong was analyzed by dividing it into a moat section, a west wall section, and a north wall section, and the preliminary survey of Japanese colonial era and the 2011 excavation survey were used as supplementary data. In view of the section of the west wall and the section of the north wall, it is believed that the built-up wall will be completed after the formation of the base → the central frame → three to four times of extending construction. The basic construction process was the same overall, but the three sections show the construction of the wall using different construction techniques and materials according to the base conditions. In addition, in the moat section and the west wall section, traces of repairs were found two to three times after the wall was built, and the outer wall or inner wall was partially supplemented according to the maintenance situation. As Dodangsan Fortress and Namsan Fortress were built in a way that made hills → built slopes, a different construction technology from Wolseong Fortress was identified. Both fortresses were constructed with a construction method suitable for small-scale earthen fortifications, and as it is estimated to be a political space and a government building, it can be seen that they were efficiently built according to the purpose of construction. On the other hand, although Silla’s stone-mounded wooden chamber was built at the same time, the similarity of fortification technology was captured only in the Hoseok structure, where the functional sector was emphasized, and various construction techniques were shared for each construction process in the embankment.

창호철물공사 하자발생 원인과 시공품질 영향분석에 관한 연구- 문(Door)에 사용되는 창호철물 중심으로 -

문상덕,정재민,옥종호 한국건축시공학회 2013 한국건축시공학회지 Vol.13 No.4

For this study, a series of interviews with engineers in the Korean construction industry was carried out through a formal workshop format to analyze the causes of the inferior quality of builders’ hardware. The authors established the causes of defects in window hardware construction in relation to the three aspects of system, design, and construction as involving the following seven factors: lack of system (including low ability to create construction specifications); low social awareness of the importance of window hardware; low technical capability to create design drawings; low design costs; small manufacturing capacity; low construction cost; and short duration of construction. Among the seven causes, the biggest cause of defects in window hardware construction is the lack of a system (low ability to create construction specifications), followed by low technical capability to create design drawings. In addition,this study carried out basic research to create measures to prevent defects in window hardware construction by analyzing how such causes of defects are distributed depending on the scale of architectural firms and construction companies during actual projects. 본 연구에서는 창호철물 공사의 하자발생 원인을 제도(System), 설계, 시공 3가지 측면에서 제도 미비(공사시방서 작성능력 부족등), 창호철물의 중요성에 대한 사회적 인식부족, 설계도면 작성 기술력 부족, 설계비 저가등 7가지를 도출하였다. 도출된 7가지 원인 중 창호철물 공사의 하자 발생에 높은 영향을 미치는 원인은 제도 미비(공사시방서 작성능력 부족), 설계도면 작성 기술력 부족이 각각 1순위, 2순위로 나타났다. 또한 이러한 하자발생 원인이 실제프로젝트에서 건축사사무소와 시공사의 규모에 따라 어떻게분포하는지와 시공품질에 미치는 영향을 분석·제시함으로 써 향후 창호철물공사 하자방지 방안 마련을 위한 기초 연구를 수행하였다.

건설 공정 지연 예측을 위한 인공지능 기반 경고 시스템 개발

정희찬,한기웅,이병훈,한예지,허경휘,최호창,한성원 대한산업공학회 2022 대한산업공학회지 Vol.48 No.4

In the construction industry, the construction process is managed based on the completed construction in comparison to the planned construction. With the current construction management system, it is difficult to respond to construction delays in advance, because the construction process rate cannot be estimated quantitatively. In this paper, we developed an AI-based warning system that proactively predicts the delay in construction based on the completed construction of the past and additional data such as budget, subcontractor, and weather data. We experimented on two types of construction sites and seven machine and deep learning models and evaluated the prediction performance of the models for the construction process rate of the future three months with MAE. We analyze the importance of each feature on the model prediction using SHAP values. Furthermore, we select the adequate target variable for construction process prediction based on the results of prediction and key delay factors.

스마트건설안전 비용의 안전관리계획서 계상 현황 분석을 통한 활성화 방안 연구

원정훈,장남권,유지영,Won, Jeong-Hun,Jang, Nam Gwon,Yu, Ji Young 한국안전학회 2022 한국안전학회지 Vol.37 No.3

This study analyzed the smart construction safety cost included in safety management plans that are approved before construction. Specifically, it refers to the cost incurred in constructing and operating a safety management system using wireless communication and facilities. Based on the obtained statistical results, an activation policy for the inclusion of the smart construction safety cost in building safety management plans was proposed. The smart construction safety cost must be included in the safety management cost; notably, this is mandated by the Construction Technology Promotion Act. However, there are some problems with the inclusion of smart construction safety costs. To analyze the problems encountered when calculating the smart construction safety cost and including it in safety management plans, in this study, statistical analysis was performed using the data of 1,334 safety management plans received at the Construction Safety Management Integrated Information (CSI) from June to August 2021. The results show that only 50.7% of the safety management plans included the smart construction safety cost although the current law mandates 100% inclusion of these costs. Thus, it is apparent that the smart construction safety costs are only included in a low proportion of sites. In addition, the calculated smart construction safety costs were shown to have a small correlation with the construction cost; moreover, they appeared to be distributed at a constant cost level. In this context, it is believed that perfunctory cost calculations were performed at most sites since the effect of the construction cost on the smart construction safety cost was negligible. Therefore, it is necessary to improve the inclusion of smart construction safety costs by strengthening the authorization process of the approval institute of safety management plans. In addition, institutional support, such as guidelines that promote the calculation and inclusion of appropriate smart construction safety costs according to the characteristics of sites, are needed.

구문다의성 및 구문확장에 관한 소고

남양우 ( Nam Ryangwoo ) 한국중국언어학회 2020 중국언어연구 Vol.0 No.89

This paper discussed the construction polysemy and the construction expansion based on previous study about individual constructions. The construction has its construction meaning, which can be extended from central sense to expanded sense. We can explain polysemy of the construction through core meaning and meaning chains, like vocabularies. The construction can also be expanded under the influence of other constructions. The construction expansion can be divided into four types. First type is that two constructions have same form but their arguments are different. Second type is that two constructions have different form but their arguments are same. Third type is that two constructions have different argument but one construction is subpart of the other construction. Forth type is that two constructions have different form and argument, but they are metaphorically involved. Polysemy of some constructions can not be explained by core meaning and meaning chains, these constructions are influenced by expansion of the construction itself and external forces. The construction may be expanded with a complex influence from multiple constructions in the process of expansion. And some constructions have polysemy and construction expansion together. In conclusion, the construction polysemy and the construction expansion show complex aspects in which the constructions continue to develop as they interact with each other.

시공능력평가방법에 따른 가치관련성 비교연구

권해숙,오원정 경남대학교 산업경영연구소 2019 지역산업연구 Vol.42 No.4

Construction ability evaluation method is a system in which the Minister of land and transportevaluates and publishes the construction ability of the construction companies at the end of Julyevery year, and reports the indicators, "estimated value of construction ability evaluation." Estimatedvalue of construction ability evaluation is used as an important means of providing information ofthe company in charge of construction when contracting various constructions. This study verifieswhether the estimated value of construction ability evaluation under the revised evaluation methoddiffers statistically significantly from the estimated value of construction ability evaluation under theexisting evaluation method. In addition, based on the study by Kwon Hai-sook, Oh Wonjung(2016), that the estimated value of construction ability evaluation has value relevance, it isrequired to verify that the value relevance to the estimated value of construction ability evaluationhas increased. The empirical analysis results showed that differences exist between the estimated values ofconstruction ability evaluation before and after the revision of the construction capability evaluationmethod, and the relevance of the estimated value of construction ability evaluation increased afterthe revision of the construction capability evaluation method. In addition, it was found that theestimated value of construction performance evaluation, management evaluation, technology abilityevaluation, and new technology evaluation that constitute the estimated values of construction abilityevaluation after the revision of the construction ability evaluation method also became more relevantto the value of the company. The analysis results are interpreted as a result of the revisedconstruction ability assessment method, which means that it can provide information related to theentity's value rather than the existing construction ability evaluation method. 시공능력평가제도는 국토교통부 장관이 매년 7월말 건설업체의 시공실적, 경영상태, 기술능력 및 신인도를 기초로 시공능력을 평가하고 공시하는 제도로서 시공능력평가액이라는 지표를산출하여 보고하고 있다. 시공능력평가액은 각종 공사계약시 공사를 담당하는 기업의 정보를 제공하는 중요한 수단으로 사용되고 있다. 본 연구는 개정된 평가방법에 의한 시공능력평가액이기존 평가방법에 따른 시공능력평가액과 통계적으로 유의한 차이가 있는지를 검증하고 추가로시공능력평가액이 기업가치와 관련이 있다는 권해숙‧오원정(2016)의 연구를 근거해 시공능력평가액의 기업가치관련성이 증가했는지를 검증하고자 한다. 실증분석결과, 시공능력평가제도 개정 전․후의 시공능력평가액 간에 차이가 존재한다는 결과가 나타났고, 시공능력평가제도 개정 이후 시공능력평가액의 기업가치관련성이 증가한 것으로나타났다. 또한 시공능력평가액을 구성하는 공사실적평가액, 경영평가액, 기술능력평가액, 신인도평가액도 시공능력평가제도 개정 이후 기업가치와의 관련성이 더욱 높아지는 것으로 나타났다. 이러한 분석결과는 개정된 시공능력평가제도가 기존의 시공능력평가제도보다 기업가치와관련된 정보를 제공할 수 있다는 것을 의미하는 결과로 해석된다.

Robotic Automation Technologies in Construction: A Review

Baeksuk Chu,Dongnam Kim,Daehie Hong 한국정밀공학회 2008 International Journal of Precision Engineering and Vol.9 No.3

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.