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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korea Institute of Building Construction
Journal Basic Information
Journal DOI :
The Korean Institute of Building Construction
Editor in Chief :
Volume & Issues
Volume 10, Issue 6 - Dec 2010
Volume 10, Issue 5 - Oct 2010
Volume 10, Issue 4 - Aug 2010
Volume 10, Issue 3 - Jun 2010
Volume 10, Issue 2 - Apr 2010
Volume 10, Issue 1 - Feb 2010
Selecting the target year
A Productivity Analysis of Tower Crane Installation Progress Based on Simulation Technique
Kim, Yun-Sik ; Cho, Jae-Kyong ; Kim, Min-Ji ; Cho, Kyu-Man ; Hyun, Chang-Taek ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 33~40
DOI : 10.5345/JKIC.2010.10.2.033
Recently, the scale of construction work has been growing, and buildings are becoming higher. To enable greater efficiency of construction work, the use of vertical transportation equipment has been radically increasing. In this context, many studies have been conducted on tower cranes. While these studies have discussed issues such as the selection of tower cranes, the optimization of locations, and the hoisting time of tower cranes, there has been no research on the installation of tower cranes. As such, the installation of tower cranes on construction sites has been accomplished based on subjective judgment and technical assistance, and the experience of workers in equipment companies. Therefore, this study analyzes the productivity of tower cranes using simulation methodology, and proposes a generalized model of the installation process of tower cranes in order to offer a basic resource that site managers can directly utilize.
A study on reliability analysis model of the repair and replacement cycle of a building which utilizes Monte Carlo Simulation
Kim, Jong-Rok ; Jung, Young-Han ; Son, Jae-Ho ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 41~50
DOI : 10.5345/JKIC.2010.10.2.041
This study presented a model that can enable a reliability analysis for the repair and replacement cycle of a building by using background repair and replacement data and expert opinion as foundation data and applying Monte Carlo Simulation. The presented model offers the time of the repair and replacement of building elements for the period of a year, and supports the prediction of repair and replacement and expenses demand in advance while planning the maintenance of a building. In addition, the model will significantly reduce the risks to the building owner with regard to maintenance decisions. In addition, when a person in charge of the maintenance of large-scale building assets is having difficulties making decisions regarding the repair and replacement of existing building elements due to a lack of background data to support a long-term policy on the repair and replacement requirements, an engineering solution that can ensure the adequacy of this is provided. In summary, it can be largely divided into three study results. First, a method of estimating the repair and replacement cycle that can deal with the development of a construction system was developed. Second, a probabilistic methodology that can quantify the risk of the repair and replacement cycle was proposed. Third, the proposed model can be used as a means of supporting designer and constructor in making decisions for the life cycle plan of a building during a construction project.
Development of a Web-based Schedule Tool Using Flash
Jang, Myung-Houn ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 51~57
DOI : 10.5345/JKIC.2010.10.2.051
Schedule management of construction work is important in order to complete construction projects within a given period of time. As activities increase and relations become more complex, schedule management software becomes increasingly necessary. To address this, attempts are being made to incorporate web-based ICT (information and communications technology) in construction project management. This research proposed a method to manage construction schedules via web pages using Flash. The interactive and graphic property of Flash enables a field manager to manage schedules easily and efficiently. A prototype was implemented using Flash and Action Script, and it was applied to a sample network in a web page.
An Analysis on the Properties of Concrete Used as the Mixture Material with Carbon Black
Ryu, Hyun-Gi ; Kwon, Yong-Ju ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 59~66
DOI : 10.5345/JKIC.2010.10.2.059
The purpose of this study is to determine the possibilities of blending carbon black, which is known for its permeability as well as its strong heat and fire resistance, into concrete, in a manner that reinforces its strengths mentioned above. Experiments show that in non-solidified, fresh-mixed concrete, the addition of carbon black effectively reduced slump level and air content due to its absorptiveness and minute particle size. It also showed good results in terms of coagulation time, penetration resistance and bleeding level. In solid concrete, it showed better strength than plain concrete. Due to the pozzolanic reaction, its strength became more pronounced over time. At approximately 850 degrees Celsius, the heat and fire resistance level increased in parallel to the level of chemical substitution (by carbon black). Drying shrinkage level appeared to be optimal, and environmental assessment test results related to CO, CO2 and formaldehyde also scored better than plain concrete. In summary, with the appropriate use of AE water-reducing agents, carbon black can prove to be a strong candidate as an ingredient for industry-grade concrete.
A Study on Developing the Actual cases Database of Value Engineering of Building Construction
Seo, Yong-Chil ; Woo, Yu-mi ; Lee, Seung-Hoon ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 67~73
DOI : 10.5345/JKIC.2010.10.2.067
The results of VE (Value Engineering) analyses are highly feasible proposals that are produced by utilizing the experience and knowledge of professionals from a variety of fields. As such, the results of past similar projects can be useful in new projects. On this basis, it is vital to accumulate the historical data of the results on VE analyses performed at every stage, which are functions, ideas, and proposals. In this research, a data formational system for collecting this historic data was established by categorizing `Item,` `Function,` `Idea,` and `Proposal` according to VE process, and the data retrieval and the adjusting process were proposed. If the historic data of these are accumulated using the suggested method, it is expected to be useful at the stage of VE process.
Development of a Calculating Model for Local Index Based on Historical Data of Public Apartment Buildings
Lim, Dae-Hee ; Lee, Seung-Hoon ; Seo, Yong-Chil ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 75~80
DOI : 10.5345/JKIC.2010.10.2.075
With the intensifying of price competition and structural diversifications, the uncertainty of the domestic housing market has been increased. This highlights the importance of the planning stage of construction projects, and the increased need for a higher level of accuracy in approximate estimates. Currently, a number of research and development programs to calculate construction cost at the initial planning stage are being conducted. However, there are few cases in which local characteristics are considered in deriving the results. If local calibration can be conducted during estimates, more accurate cost estimates will be enabled. This could also play a major role in ensuring the success of a project. Therefore, the purpose of this research is to develop a calculation methodology and a model for a local index based on the historical data of public apartment buildings, and to derive a local index that supports accurate construction cost estimates.
A Study on use state of Defect Deposite based on Actual use data - focused on 3 years after moving in apartment complex -
Seo, Deok-Seok ; Choi, Jung-Hyun ; Kim, Ok-Kyue ; Park, Kang-Woo ; Cho, Jae-Hun ; Park, Jun-Mo ; Kim, Kwang-Hee ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 81~88
DOI : 10.5345/JKIC.2010.10.2.081
Under the law of Management of Apartment Complexes, the Apartment Supplier should satisfy the demands of residents for the repair of defects found in Apartment Housing. But in the cost of defect repair, the expense of resident complaints is not included, and only the actual defect repair expense is counted. So in this study, the actual use state of defect deposits for 3 years after moving in is analyzed based on the actual use data of 39 apartment complexes. The study shows that more than 50% of defect repair deposits are spent to satisfy expenses arising from complaints by residents. This is not only caused by irrational demands of residents, but also by the adoption of a stopgap policy by Apartment Suppliers.
An Experimental Study on the Mechanical and Fire Resistance Properties of ECC Fire Resistance Panel
Lee, Sang-Soo ; Kang, Hoon ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 89~96
DOI : 10.5345/JKIC.2010.10.2.089
This study was based on an experiment that examines the manufacture and performance of fiber-reinforced cement composite panels. The conclusions were drawn after testing the mechanical properties and durability characteristics of fiber-reinforced mortar, and the mechanical properties and fire resistance of ECC fire resistant column panels. It was found that the fluidity of CEL fiber was lower than that of PVA and NY fiber. The amount of air increased slightly as the combination of fibers caused the number of fine pores to increase. It was found that the mechanical performance and deformability of high strength concrete could be improved through the confinement effect of ECC fire resistant column panels. Through continuous studies on the manufacturing and field construction methods of fire resistant column panels, a new PC method that eliminates weakness in the existing processes may be developed for skyscrapers.
Study on Energy Performance And Economic Evaluation of Windows System with Built-in Type Blinds
Joe, Won-Hwa ; Lim, Nam-Gi ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 97~104
DOI : 10.5345/JKIC.2010.10.2.097
This study evaluated the energy efficiency of a windows system using built-in blinds, with regard to their insulation performance and their blocking of solar radiation. The study took advantage of the "Physibel Voltra" program as a physical simulation of heat transfer. To simulate the "Physibel Voltra" program, I practiced a mock-up test to determine heating quality and translation condition. I analyzed the propensity to annual energy consumption, the annual quantity of heat transfer, and the annual cooling and heating cost through a computer simulation for one general household in an apartment building. In the test, it was found that compared to a general windows system, a windows system with built-in blinds reduced the annual heat transfer by 10% in cooling states and by 11% in heating states when the blind was up. When the blind was down, the windows system with built-in blinds reduced the annual heat transfer by 25% in cooling states and 30% in heating states. When a windows system with built-in blinds is compared with a general windows system, the quantity of cooling and heating loads is reduced by 283.3kw in cooling states and 76.3kw in heating states. This leads to a reduction in the required cooling and heating energy of 359.6kw per house. It is thus judged that the use of a windows system with built-in blinds is advantageous in terms of reducing greenhouse gas emissions, because the annual TOE (tons of oil equivalent) per house is reduced by 0.078TOE, while
is reduced by
. In addition, compared with a general windows system, the cost of cooling and heating loads in the system reduces the annual cooling cost by 100,000won, and the annual heating cost by 50,000won. Ultimately, this means that cooling and heating loads are cut by 150,000won per year.
Performance Evaluation of Recycled Synthetic Resins Euro-form by Injection Modeling Method
Chung, Byeung-Yeul ; Lee, Hyun-Chul ; Kim, Jun-Hee ; Go, Seong-Seok ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 105~113
DOI : 10.5345/JKIC.2010.10.2.105
Method or work type improvement is needed in relation to reducing cost and increasing efficiency by ensuring construction quality and reducing labor in the form work process. This would have a great influence on the entire construction process, and make the process of adopting materials and methods more rational and economic. Hence, this study aimed to develop a Synthetic Resins Euroform that could improve durability, water-proofing, sophistication, and organizational unity through the use of injection modeling. Accordingly, this paper first investigated various performance requirements and necessary techniques, and then verified feasibility by evaluating the physical safety and technical validity when it is applied to construction field. In addition, this study evaluated the constructability, safety performance, environmental performance, and systemic excellence in terms of maintaining convenience of Synthetic Resins Euroform. Moreover, to verify feasibility in the construction field, this study analyzed and evaluated the maximum stress by measuring the load and deformation of the space of the horizontal furring, which is attached to Euroform as an armature.
A Study on the Improvement of Defect Information Management System of Apartment House
Jang, Hyo-Sung ; Seo, Chee-Ho ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 115~123
DOI : 10.5345/JKIC.2010.10.2.115
Defects in apartments, which are one of the major residential types in Korea,produce unexpected inconvenience for their owners. If construction companiespaid more careful attention to the management of defect information, manydefects could be prevented. In this context, this study attempted to derive an improved defect information management system. First, research into cases of defects that were caused by weaknesses in the defect information management system were advanced to confirm the necessity of improving the defect information management system, and as the next step, a survey was conducted to identify problems with the current defect information management system, and the requirements of animproved system. In conclusion, an improved defect information management system will contribute to preventing defects in apartments in Korea.
Application Possibility of Folding Pre-fabricated Rebar Cage in Domestic Construction Fields
Jung, Young-Chul ; Lee, Byung-Yun ; Kim, Gwang-Hee ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 125~132
DOI : 10.5345/JKIC.2010.10.2.125
Recently, construction companies have had difficulty in managing their business due to economic hardship domestically and abroad, decreased orders, and low profitability due to intensified competition. To address these issues, construction companies need to develop or introduce construction methods that improve productivity. The purpose of this study is to investigate a re-bar construction method that reduces the high expenses of transport by folding a pre-fabricated re-bar cage. It was concluded that the application of rebar pre-fabrication would be activated and the productivity of construction sites improved by adopting the folding rebar pre-fabrication method.
A Study on the process for Managing the Reliability of Conceptual cost estimates in Building Projects
An, Sung-Hoon ; Kim, Dae-Won ; Park, U-Yeol ;
Journal of the Korea Institute of Building Construction, volume 10, issue 2, 2010, Pages 133~138
DOI : 10.5345/JKIC.2010.10.2.133
Conceptual cost is estimated with insufficient information at an early stage of a building construction project, resulting in an inevitable gap between conceptual estimated cost and real constructed cost. For a project to be successful, this gap must be managed to be lower than a reliable level. Therefore, the purpose of this study is to propose a structural process for managing the reliability of conceptual cost estimates at an early stage of a building construction project. In researching this study, conceptual cost estimate experts were interviewed,and a risk management process was studied. Reliability assessment and a review process for improving the quality of conceptual cost estimate and the planning strategy of reliability management based on previous similar projects were added to the present estimate process. The proposed reliability management process will improve the chances of a successful project, by helping to decrease the risk of conceptual estimated cost.