Sang-Yoon Jin

This research presents a strategy and information system to manage the logistics and progress control of structural steel works under the integrated environment of radio frequency identification and four-dimensional computer-aided design (4D CAD). Considering the characteristics of the manufacturing and erection processes of structural steel works in high-rise building construction from a practical point of view, this research has developed a strategy to support successful application of these t

This study proposes a quantitative measurement method for the value of building information modeling (BIM) implementation during the construction phase of a large-scale building project. From the case project, 472 value-assignable BIM issues were derived, and they were quantified regarding various aspects, such as the BIM utilization value and BIM contribution value, using a contract budget (CB). It was found that BIM has contributed to identifying and/or resolving issues whose contractual value

The key objective of this Workshop was to gather a ‘steering group’ of government departments, non-government organizations (NGOs) and research institutions in Southeast Asia to raise awareness of the magnitude of the pangolin trade and discuss how to combat the illegal trade. The outputs included a list of recommendations and follow-up actions to be circulated among relevant organizations, which would assist enforcement agencies in prioritizing and focusing their efforts to halt this illegal tr

The more detailed building information modeling (BIM) is, the more accurate are the quantities that can be extracted in BIM-based quantity take-off. However, the time and cost typically allowed for modeling are insufficient to extract accurate quantities throughout a project’s life cycle. In addition, variations in quantity interfere with estimating accurate construction costs. Despite the recognition that extracted quantities can differ depending on the details of building interior components,

This research presents the integration of 4D CAD with RFID (Radio Frequency IDentification) technology to improve the progress management process. The objective of this research was to build an effective and efficient project progress management framework by integrating 4D CAD with RFID technology under a collaborative environment throughout the supply chain of a construction project. This research proposes a system, named 4D+RFID, that presents building elements in 3D CAD models according to as

Extracting two-dimensional (2D) views and drawings from a three-dimensional model is essential for building information modeling (BIM). However, in practice, generating 2D deliverables from BIM results in additional work (>41%) and reduced consistency between drawings and BIM model data. This study aims to determine the information essential for acceptable drawing outcomes. Based on the drawing requirements at the construction documentation stage, information requirements for the BIM dataset wer

Particle shape analysis of coarse aggregates is important to ensure the quality of cement and asphalt concrete mixtures. Conventional methods for measuring the aggregate particle size, such as manual calipers or mechanical sieving, are time consuming and labor intensive. In addition, the accuracy of image processing techniques is severely limited by shadows and heterogeneous backgrounds. Hence, we developed an automatic stereo vision-based inspection system (SVIS) for the identification and shap

This study developed a construction sound localization framework (CSLF) using the time delay of the arrival technique and the generalized cross-correlation phase transform. Based on the spatial characteristics of construction sites, this study identified sound-source locations at construction sites to overcome the limitations of existing sensor-based localization methods. Verification tests were performed on the CSLF in both interior and exterior environments. The interior tests showed that the

커튼월은 최근에 고층 건축물에서 공기단축을 위해 가장 많이 활용되고 있는 외장 공법이며, 공사비와 공정관리 측면에서 주요 관리대상의 공종이다. 커튼월 프로세스의 효율적 관리는 전체 프로젝트의 성공적 수행을 위한 주요 대상으로 인식되고 있다. 그러나 기존의 커튼월 공사 관리는 시공 단계 중심의 관리에 초점을 맞춤으로서, 공사 수행의 오류, 잘못된 작업으로 인한 재작업, 비효율적 정보관리로 인한 중복오류누락 등의 문제가 발생하고 있고, 전체 생애주기 관점에서 효율적 관리가 이루어지지 못하고 있다.따라서 본 연구는 커튼월 공사 전체 생애주기 프로세스를 분석하여, 프로세스의 효율성 향상을 위한 단계별 관리 포인트를 제시하는데 목적이 있다. 이를 위해 비효율 요인을 도요다 시스템의 무다(muda)방법으로 규명하고, 계층적 분석법(AHP)을 이용하여 비효율 요인의 중요도를 도출하였다. 그 결과 커튼월 생애주기 중에서 건축설계 단계에 가장 많은 비효율 요인이 발생되었고, 주요 세부요인으로는 설계