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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of KIBIM
Journal Basic Information
Journal DOI :
Korean Institute of Building Information Modeling
Editor in Chief :
Volume & Issues
Volume 5, Issue 4 - Dec 2015
Volume 5, Issue 3 - Sep 2015
Volume 5, Issue 2 - Jun 2015
Volume 5, Issue 1 - Mar 2015
Selecting the target year
A Case Study on BIM Operating and Performance Measurement in Construction Phase
Ham, Nam-Hyuk ; Kim, Jae-Jun ;
Journal of KIBIM, volume 5, issue 2, 2015, Pages 1~11
DOI : 10.13161/kibim.2015.5.2.001
Despite a lot of research on BIM, there is no quantitative study to measure accurately the performance of BIM coordination service. Thus, this study suggested method to measure the performace of BIM coordination services, applying queueing models in the field of management science. To analyze queuing system of BIM coordination services, a group of BIM coordinator were selected. Through focus group interviews with experts were used in the analysis to derive mean arrival rate(
), mean service rate(
) of BIM coordination services. Single-server queuing model(M/M/1), multiple server queuing model(M/M/s) is utilized for the BIM coordination services performance measurement in construction phase. This study has significant quantitative performance measurement approaches that can be utilized in the decision-making for the improvement of the BIM coordination services and to support the review of the alternatives accordingly. But There is a limit but it is difficult to take into account the increase or decrease of the cost of alternatives according to the review.
Development of Creative Design and Construction Methods of Bridge Piers using 3D Model
Lee, Sang-Yong ; Dong, Ngoc Son ; Shim, Chang-Su ;
Journal of KIBIM, volume 5, issue 2, 2015, Pages 12~18
DOI : 10.13161/kibim.2015.5.2.012
Bridge piers typically have circular or rectangular shapes without decorative design. Prefabrication for accelerated construction has been widely adopted in bridge structures. Cost for steel formwork is a main restriction of creative irregular shapes. 3D modelling techniques allow creative design of columns and 3D printing provides possibility to minimize the fabrication cost. In this paper, 3D design process of bridge piers was suggested by converting 2D picture into 3D decorative shape. Formwork design using 3D printed panels was also proposed and mock-up tests were conducted. Precast columns need accurate geometry control from fabrication to assembly. Laser scanning and geometry control devices were adopted. Through the digitalized process of design, fabrication and assembly, creative design of structures can be realized in reasonable cost range.
Open source viewer-based BIM Query Development for BIM information visualization
Kang, Tae Wook ;
Journal of KIBIM, volume 5, issue 2, 2015, Pages 19~25
DOI : 10.13161/kibim.2015.5.2.019
The purpose of this study is to design simple BIM query language for visualizing BIM information as the viewpoint of use-cases by using open source viewer cost-effectively. recently, the studies related to the facility management using BIM are being researched world-widely. In this studies, it's important to develop the BIM query to obtain the needed data from BIM database. To implement it, the trends in related studies were reviewed and the open source-based BIM viewer architecture was analyzed. And then the architecture considering the simple BIM Query Language (sBQL) was designed to represent the geometry and property of the BIM database. Lastly, the system by using the proposed sBQL grammar was developed.
Identification of Claim Elements for Design Build Projects using FMEA Method
Yoon, Seokmin ; Hyun, Changtaek ; Han, Sangwon ; Cha, Yongwoon ;
Journal of KIBIM, volume 5, issue 2, 2015, Pages 26~33
DOI : 10.13161/kibim.2015.5.2.026
Design-build projects were devised to enhance the design technologies of the domestic construction industry and the efficiency of public works, contributing greatly to the development of construction technologies. However, as various stages of the process, such as formulation of basic plans and design documents, and deliberations proceed, claims, including changes in the requirements of clients, and design changes occur. These claims result in the delay in construction and an increase in construction costs. In this regard, this study attempted to identify main claims that delay construction and increase the costs of design-build projects, prevent claims in the future, and improve the efficiency of project implementation.
Evaluation and Selection of Building Materials based on Life Cycle Cost Prediction
Ahn, Junghwan ; Lim, Jinkang ; Oh, Minho ; Lee, Jaewook ;
Journal of KIBIM, volume 5, issue 2, 2015, Pages 34~45
DOI : 10.13161/kibim.2015.5.2.034
As buildings become larger and more complicated, construction costs have increased with a considerable effect on buildings' Life Cycle Cost (LCC). However, there has been little consideration on economic aspects in the selection of construction materials due to limited information on the materials and dependency in architects' experience and inefficiency in cost estimation, causing design changes, increase in maintenance cost, difficulty in budgeting, and decrease in building performance. To solve these problems, this study proposed a BIM-based material selection model which reflects the comprehensive economic efficiency of building materials. Our cost prediction model can estimates the material-related cost during the entire building life cycle. Furthermore, we implemented the proposed model in connection with BIM, which can analyze and compare LCC by material. Through the validation of the model, we could confirm the necessity of LCC-based material selection in comparison with the conventional cost-centered material selection.
Entity Matching for Vision-Based Tracking of Construction Workers Using Epipolar Geometry
Lee, Yong-Joo ; Kim, Do-Wan ; Park, Man-Woo ;
Journal of KIBIM, volume 5, issue 2, 2015, Pages 46~54
DOI : 10.13161/kibim.2015.5.2.046
Vision-based tracking has been proposed as a means to efficiently track a large number of construction resources operating in a congested site. In order to obtain 3D coordinates of an object, it is necessary to employ stereo-vision theories. Detecting and tracking of multiple objects require an entity matching process that finds corresponding pairs of detected entities across the two camera views. This paper proposes an efficient way of entity matching for tracking of construction workers. The proposed method basically uses epipolar geometry which represents the relationship between the two fixed cameras. Each pixel coordinate in a camera view is projected onto the other camera view as an epipolar line. The proposed method finds the matching pair of a worker entity by comparing the proximity of the all detected entities in the other view to the epipolar line. Experimental results demonstrate its suitability for automated entity matching for 3D vision-based tracking of construction workers.