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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Construction Engineering and Management
Journal Basic Information
Journal DOI :
Korean Institute Of Construction Engineering and Management
Editor in Chief :
Volume & Issues
Volume 17, Issue 4 - Jul 2016
Volume 17, Issue 3 - May 2016
Volume 17, Issue 2 - Mar 2016
Volume 17, Issue 1 - Jan 2016
Selecting the target year
Analysis the Design Attribution to Assess the Design Quality Based on Detailed Design
Yang, Ji Su ; Kim, Yea Sang ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 3~12
DOI : 10.6106/KJCEM.2016.17.3.003
Recently, construction industry shows active expansion in overseas construction market. But the active work limited in construction work, on the other hand, design-drawing work is evaluated shortage of competitive power. So this study aim to improve the competitive of 'domestic design-drawing work'thorough objective evaluation. Objective evaluation is consist of 'design attribution'. Design attribution is based on the execution drawing and complement by existing reasearch, expert interview. And then, list up the 'design attribution' evaluation list to carry out a survey targeting hands-on worker. Survey is consist of 'Likert 5-point scale, FMEA method'. As a result, construction company and design company show different opinions in both relative position evaluation and importance evaluation.
Factors Determining the Price of Remodeled Multi-family Housing
Kim, JaeSung ; Cho, Kyuman ; Kim, Taehoon ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 13~22
DOI : 10.6106/KJCEM.2016.17.3.013
Remodeling of multi-family house (MFH) has emerged as a major issue in the construction industry. Many decision-makers are struggling to determine whether to conduct a remodeling because of insufficient information including standard or method for projecting the price of their facilities after remodeling works. In this context, this research has conducted for analyzing how the price of the MFH is shifted by remodeling works. To achieve this research goal, (i) fourteen MFH remodeling cases were collected and (ii) price variation for the collected cases was analyzed in order to figure out how remodeling work affects the price of MFH cases. Finally, this research suggested the factors determining price of the MFH, wherein remodeling work has been conducted. From the results of this research, it is expected that the decision-makers can understand what is the crucial factors for determining the price of their MFH when they plans remodeling, and further this research can be a corner stone for developing a model for predicting the price of MFH if remodeling would be performed.
A Study on the CM at Risk Business Model using Business Model Canvas
Park, Kyungmo ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 23~31
DOI : 10.6106/KJCEM.2016.17.3.023
The domestic market of CM at Risk has not been activated yet. It was analyzed duo to the fact that construction owners didn't have confidence in CM at Risk, because of the concerns regarding CM firms reliability, service, specialty, system and feasibility. Therefore, this study analyzed the problems to find the reason for declines in orders through a business diagnosis based on the Business Model Canvas(BMC) and set up the direction of business model improvement with one on one expert interviews. Additionally, we suggested the sub-activities for the business model improvements of CM at Risk service that are divided into 9 building blocks. Through this method, we determined that we would need preceding innovation activities such as good communication with customers, reinforcement of subcontract and excellence in project operations to convert the successful practice and settlement of the CM business model based in BMC. It is expected that the business model suggested from this study would contribute to improvement of CM at Risk competition and the differentiation strategy when compared with other firms. Also, it would be used a basis data to develop CM at Risk business model in the future.
A Study on 3D Indoor mapping for as-built BIM creation by using Graph-based SLAM
Jung, Jaehoon ; Yoon, Sanghyun ; Cyrill, Stachniss ; Heo, Joon ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 32~42
DOI : 10.6106/KJCEM.2016.17.3.032
In Korea, the absence of BIM use in existing civil structures and buildings is driving a demand for as-built BIM. As-built BIMs are often created using laser scanners that provide dense 3D point cloud data. Conventional static laser scanning approaches often suffer from limitations in their operability due to the difficulties in moving the equipment, the selection of scanning location, and the requirement of placing targets or extracting tie points for registration of each scanned point cloud. This paper aims at reducing the manual effort using a kinematic 3D laser scanning system based on graph-based simultaneous localization and mapping (SLAM) for continuous indoor mapping. The robotic platform carries three 2D laser scanners: the front scanner is mounted horizontally to compute the robot's trajectory and to build the SLAM graph; the other two scanners are mounted vertically to scan the profiles of surrounding environments. To reduce the accumulated error in the trajectory of the platform through loop closures, the graph-based SLAM system incorporates AdaBoost loop closure approach, which is particularly suitable for the developed multi-scanner system providing more features than the single-scanner system for training. We implemented the proposed method and evaluated it in two indoor test sites. Our experimental results show that the false positive rate was reduced by 13.6% and 7.9% for the two dataset. Finally, the 2D and 3D mapping results of the two test sites confirmed the effectiveness of the proposed graph-based SLAM.
Development of Time-Cost Trade-Off model Based on Emergency Construction Work Scenario
Lee, Sihyun ; Lee, Seounghyun ; Son, Jaeho ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 43~51
DOI : 10.6106/KJCEM.2016.17.3.043
Recently, the cost of construction projects has escalated due to a significant increase in size and complexity. Many construction projects have failed to meet their originally intended project deadline due to various factors such as weather, labor supply, equipment, procurement, accidents, etc. Consequently, emergency construction work scenario has to be implemented in order to shorten the duration and satisfy the original estimated schedule. However, many critical decisions in emergency scenario rely solely on the experience of a construction manager. Thus, this paper proposes TCTO optimization model to decide the most effective alternative out of various working scenarios which are generated by the combination of work group and work time. The developed TCTO model provides the optimum schedule that satisfies the practical constraints. Future research could involve the integration of resource leveling with the proposed model. This would make the model more versatile.
Evaluation of Life Cycle Energy Consumption and CO
Emission of Elementary School of Buildings
Ji, Changyoon ; Hong, Taehoon ; Jeong, Jaewook ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 52~60
DOI : 10.6106/KJCEM.2016.17.3.052
This study investigates and analyzes the total amount of energy consumption and
emission during the material manufacturing, transportation, construction, operation, and disposal phases of eight elementary school buildings in South Korea. Toward this ends, the hybrid LCA model is proposed. The life cycle energy consumption and
emission of eight case buildings are assessed using the hybrid LCA model with an assumption that the operation period is 40 years. As a result, the embodied(sum of the energy consumption in the material manufacturing, transportation and construction phases), operational and disposal energy were 2,279, 11,182,
, respectively, on average. The average embodied, operational, and disposal
emission were 604, 2,708, 60 kg-
, respectively, on average. This result indicates that about 17% of life cycle energy (or
emission) is consumed in the material manufacturing, transportation and construction phases. Thus, it is necessary to consider the embodied energy and
emission to reduce the life cycle energy and
emission of school buildings. In addition, while the insulation standard of building have been provided based on the climate zone, energy consumption in operation phase still varied depending on the regions in this study. Thus, the insulation standard of building needs to be improved through considering the climate of regions in detail.
VRIO Model Based Enterprise Capability Assessment Framework for Plant Project
Min, Byeong Su ; Min, Jang Hee ; Jang, Woosik ; Han, Seung-Heon ; Kang, Sin Young ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 61~70
DOI : 10.6106/KJCEM.2016.17.3.061
Construction enterprises have performed various projects such as buildings, infrastructure and plant projects in the international market. Among these, the plant project's amount of orders accounted for about 68.9% of all. However, because of the enterprises won a contract with a low-budget for plant project in the last 10 years, the profit has dropped dramatically. And it is forecasted that there are extreme competition for bid award of plant projects because of the current falling oil prices and raising interest rates. In this circumstance, the comprehending of enterprises strength and weakness must be a priority to get a sustainable competitive advantage. Therefore this research suggests the enterprises's capability assessment framework and it is in order to diagnose the korean construction enterprises capabilities. The framework is based on the VRIO model that is on the basis of resource based theory. First, the capability assessment indices and their importance and priority that based on the life-cycle of plant project is deducted by literature review and survey. Second, the 5 point likert score applied VRIO survey is conducted to diagnose the enterprises and quantified the survey result using the fuzzy theory. Lastly, the competitvie implication and capability assessment are deducted.
Probabilistic Project Duration Estimation by Combination of PERT and PLET in High-Risk Project
Kim, Seon-Gyoo ; Kim, Junyoung ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 71~80
DOI : 10.6106/KJCEM.2016.17.3.071
PERT(Project Evaluation and Review Technique) is typical method in order to probabilistically establish the schedule plan for large scale complex project or mega project. PERT technique is impossible to estimate relationship of each activity probabilistically when there are overlapping relationships because it is limited to Finish-to-Start(FS) relationship. In order to overcome this kind of limitation of PERT technique, PLET(Probabilistic Linkage Evaluation Technique) has been suggested to probabilistically estimate project duration for various overlapping relationships for each activity. However, estimating project duration by PLET technique only considers uncertainty of relationship between activities and not activity time, thus it is not the perfect duration estimating method. The main objective of this research is to propose the integration model of PERT and PLET and verify its probabilistic validity. By verifying application of time calculation method of integration model in practical case, this research will suggest probabilistic project duration estimating method in schedule plan of high-risk construction industry.
A Study on the Investigation into Obstacles in Construction Budget Estimating
Koo, Kyo Youn ; Kim, Han Soo ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 81~89
DOI : 10.6106/KJCEM.2016.17.3.081
Under the circumstances where the profitability has become a more critical issue for general contractors, the objective of the study is to identify and discuss obstacles and their key characteristics in the construction budget estimating. Through the questionnaire survey and interviews with experienced estimators of general contractors, the study identified 18 obstacles by 6 groups. It discussed that although various obstacles exist, there are key obstacles to which general contractors should pay attention for the realistic construction budget estimating. In particular, improving subcontractors' estimating competency and incubating estimating experts are identified as the key issues to overcome obstacles in the construction budget estimating.
Development Acceptable Risk Model for International Construction Projects - Focusing on Small and Medium Construction Companies -
Hwang, Geunouk ; Park, Chan Young ; Jang, Woosiki ; Han, Seung Heon ; Kang, Sin Young ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 90~97
DOI : 10.6106/KJCEM.2016.17.3.090
Since Korean construction firms have steadily advanced into the international market, small and medium construction companies (SMCCs) have also advanced in such market. SMCCs's recent trend have clearly shown the changes of contract types from single subcontractor projects to multiple general contracting projects. However, among those multiple projects performed by SMCCs, 1 out of 3 projects were deficit projects that impact the overall pe rformance of the firm. To increase such performance, risk management for in international construction must be managed at the enterprise level for SMCCs. This research aims to create a multiple project management model for SMCCS that employs the concept of acceptable risk to assess the limit risk level for corporation to acceptable. Using the accumulated data from previous survey and International Construction Association of Korea (ICAK), integrated risk of each firm and their profitability of each project are analyzed. Through the analysis, each firm's acceptable risk level is derived. Through the two research steps, acceptable risk algorithm was developed based on corporate integrated risk and profit correlation. To prove the acceptable algorithm relevance, financial statement analysis of 3 corporation was derived that level of acceptable risk and financial statement were available. Through the approach, this research allows the firms to analyze the firm's capability and find projects that suits the firm's situation and capability.
Development of Collaboration and Communication Platform based on Contents for an Efficient Task Management in Construction Project
Kim, Seong-Ah ; Jung, Choong-Won ; Kim, Nam-Ho ; Choi, Cheol-Ho ; Chin, Sang-Yoon ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 98~107
DOI : 10.6106/KJCEM.2016.17.3.098
An information system in a construction project has been typically used for drawing, document management, and administration process. And it has limitations to support real-time communication and collaboration among project stakeholders. The objective of this research is to improve communication, information share, and task management by developing a collaboration platform among project stakeholders supporting various communication methods and contents. The platform developed in this research, named as CCP, aims to support communication and collaboration related activities beyond the scope of legacy systems at construction sites. CCP was validated through pilot test and user survey, and it was found to be very helpful for sharing and distributing information, tracking and recording, and improving a user's work capability.
A Study of the Price Determinants for Public Residential Land Investment - From the Perspective of Land and Market Factors -
Choi, Kiheon ; Lee, Sangyoub ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 108~115
DOI : 10.6106/KJCEM.2016.17.3.108
The price determinant for land investment depends on the internal information process and subjective decision making by management in general. Accordingly, the systematic frame to determine the feasibility of investment price to the public residential land for multi-housing development by private sector has not been proposed. The purpose of this study is to explore the frame to determine the investment price for public residential land from the perspectives of land attribute and apartment market factor. Multiple regression has been implemented to confirm the eligibility of proposed model. Research findings indicate that the land area, floor area ratio, coverage ratio, location have been identified as the total land cost determinant, and for the determinants for floor area land cost, the ratio of apartment, sale price, rent price, etc, have been identified. This research intends to provide the basis for land providers to predict the land value as a raw material in market and present the indicators for land buyers to review the price adequacy for the investment.
Task-Visual Information Map to Develop AR Navigators of Construction Equipment
Song, Sujin ; Kang, Hojun ; Kim, Hanbeen ; Moon, Taenam ; Shin, Do Hyoung ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 116~124
DOI : 10.6106/KJCEM.2016.17.3.116
Work efficiency of earth work which is one of the main works occurring in construction site mainly depends on the performance of individual operators of earth work equipment. Consequently, the skill of individual operators of earth work equipment can significantly affect overall construction schedules. Many invisible areas inevitably exist in construction site because of the nature of construction site where occlusions occur from structures being built, installed or moving equipment, moving workers, etc. The lack of visual information regarding tasks critically impedes the effective performance of operators of earth work equipment. AR (Augmented Reality) is a computer technology that superimposes virtual objects onto the real world scene. This characteristic of AR may address the lack of visual informations in earth work process, thus helping to improve the work efficiency of operators of earth work equipment. The purpose of this study is to present a task-visual information map that identifies visual informations required in tasks of earth work and which of the tasks are suitable for AR technology. This study focuses on visual informations in tasks of earth work with excavators. The map was created based on the investigations on the problems of each task of earth work with excavators and visual informations required to address the problems. Through the map, four visual informations were found to be suitable for AR technology to improve the work efficiency of excavator operators. Based on the findings of this study, AR systems for excavators can be developed more effectively.
The Case Study on Performance Measurement Weighting for Efficient Value Engineering Study of Sewage Treatment Facliity
Park, Jaeil ; Kim, Dongjin ; Kim, Gyeonghyun ; Lim, Jongkwon ; Lee, Minjaee ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 125~133
DOI : 10.6106/KJCEM.2016.17.3.125
The Project Risk Management is intended to result in the effective management by identifying in advance and mitigating all significant risks including project risks and opportunities during the entire project life cycle - from project inception to completion of construction. It is impossible to predict an exact budget and construction duration before finishing a project. So, Washington Department of Transportation mandates that workshop-based risk management is conducted for projects over specific cost. However, the domestic construction sites have depended on numerical risk analysis without any workshop and efficient risk management have not made. Therefore, in this study, we propose the effective risk management using the RBES program which is very useful for workshop-based risk management and pre & post mitigation, by workshop-based risk management techniques. This proposed risk management approach is applied to a domestic 'A' river recovery project. It is concluded that we may expect the effect to mitigate the total cost overrun problem and the construction duration delay effect in the project by identifying significant risks and by preparing effective risk mitigation strategies.
A Development Direction of Infrastructure Based Disaster Mitigation & Management Integrated System
Park, Suyeul ; Oh, Eunho ; Choi, Bonghyuck ; Kim, Jinman ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 134~142
DOI : 10.6106/KJCEM.2016.17.3.134
Main infrastructures, such as levee, dam, bridge, road, etc., are very important due to not only the means of support for social and industrial activities in normal situation but also the means of protection of life and property during disaster occurrence. In spite of this importance of infrastructures, however, any disaster management systems that actively use these infrastructures are not developed yet. Moreover, infrastructures are not usually included in emergency action plans, thus it occurs second and third impact on communities and industries due to collapsing or damage of infrastructures. Therefore, the authors in this paper analyzed previous research, SWOT, STEEP, and patents and technical journals and conducted a technology need survey ni order to understand the trend of disaster management system as well as suggest main research fields and detail research items. The results of this paper will be a foundation of developing an advanced infrastructure integrated system of maintenance and disaster mitigation and contribute our nation to have an active response system by using infrastructure.
The Development of Around View Monitoring System Pilot Type for Construction Equipment
Yeom, Dong Jun ; Seo, Jung Hoon ; Yeom, Han Seung ; Yoo, Hyun Seok ; Kim, Young Suk ;
Korean Journal of Construction Engineering and Management, volume 17, issue 3, 2016, Pages 143~155
DOI : 10.6106/KJCEM.2016.17.3.143
Recently, the interest on applying AVM(Around View Monitoring) systems in construction equipments have been increasing due to the demand for better control, work efficiency and safety. Most of the existing AVM systems have been developed focusing on the application in automobiles and only several AVM systems have been developed for construction equipments. However, the original technology of AVM remained the same as in the automobiles that failed to consider the main properties of construction equipments and suggest appropriate range of AVM display (Top-view). Therefore, the purpose of this study is to suggest a pilot type of AVM system for construction equipment. Accordingly, literature review, deduction of main consideration factors, selection of sensors, system design, algorithm development of a pilot type of AVM system for construction equipment have been conducted. A laboratory experiment has also been conducted for the deduction of further improvements. As a result, a minimum image refresh rate of 20 fps has been achieved that clearly reflects the actual situation of the equipment and also, the actual motions of Boom, Arm, Bucket have been displayed appropriately on the AVM system based on the angle data collected by sensors. However, the experiment results have also shown that the following tasks still remain for future work: 1)Improvement of AVM image interpolation, 2)Development of calibration module for variety construction equipment.