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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 9, Issue 6 - Dec 2009
Volume 9, Issue 5 - Oct 2009
Volume 9, Issue 4 - Aug 2009
Volume 9, Issue 3 - Jun 2009
Volume 9, Issue 2 - Apr 2009
Volume 9, Issue 1 - Feb 2009
Selecting the target year
Lee, Jong-Se ; Gye, Song-Cheol ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 5~16
DOI : 10.5345/JKIC.2009.9.4.005
서울동북부 철도 관문 청량리 민자역사 신축공사
Jeong, Yeon-Po ; Lee, Sang-Tae ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 17~22
DOI : 10.5345/JKIC.2009.9.4.017
Mock-up Test of Temperature Crack Reduction Method Application by Setting Time Control of Mat Foundation Mass Concrete
Han, Cheon-Goo ; Lee, Jae-Sam ; Noh, Sang-Kyun ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 55~61
DOI : 10.5345/JKIC.2009.9.4.055
Recently, the number of high-rise buildings being built in Korea by major construction companies for residential and commercial use has been increasing. When constructing a high-rise building, it is necessary to apply massive amounts of concrete to form a mat foundation that can withstand the huge load of the upper structure. However, it is of increasing concern that due to limitations in terms of the amount of placing equipment, available job-sites and systems for mass concrete placement in the construction field, it is not always possible to place a great quantity of concrete simultaneously in a large-scale mat foundation, and for this reason consistency between placement lift cannot be secured. In addition, a mat foundation Is likely to crack due to the stress caused by differences inhydration heat generation time. To derive a solution for these problems, this study provides test results of a hydration heat crack reduction method by applying placement lift change and setting time control with a super retarding agent for mass concrete in a large-scale mat foundation. Mock-up specimens with different mixtures and placement liftswere prepared at the job-site of a newly-constructed high-rise building. The test results show that slump flow of concrete before and after adding the super retarding agent somewhat Increases as the target retarding time gets longer, while the air content shows no great difference. The setting time was observed to be retarded as the target retarding time gets longer. As the target retarding time gets longer, compressive strength appears to be decreased at an early stage, but as time goes by, compressive strength gets higher, and the compressive strength at 28 days becomes equal or higher to that of plain concrete without a super retarding agent. For the effect of placement lift change and super retarding agent on the reduction of hydration heat, the application of 2 and 4 placement lifts and a super retarding agent makes it possible to secure consistency and reduce temperature difference between placement lifts, while also extending the time to reach peak temperature. This implies that the possibility of thermal crack induced by hydration heat is reduced. The best results are shown in the case of applying 4 placement lifts.
An Experimental Study on the Pore Structure and Thermal Properties of Lightweight Foamed Concrete by Foaming Agent Type
Kim, Jin-Man ; Choi, Hun-Gug ; Park, Sun-Gyu ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 63~73
DOI : 10.5345/JKIC.2009.9.4.063
Recently, the use of lightweight panels in building structures has been increasing. Of the various lightweight panel types, styrofoam sandwich panels are inexpensive and are excellent in terms of their insulation capacity and their constructability. However, sandwich panels that include organic material are quite vulnerable to fire, and thus can numerous casualties in the event of a fire due to the lack of time to vacate and their emission of poisonous gas. On the other hand, lightweight foamed concrete is excellent, both in terms of its insulation ability and its fire resistance, due to its Inner pores. The properties of lightweight concrete is influenced by foaming agent type. Accordingly, this study investigates the insulation properties by foaming agent type, to evaluate the possibility of using light-weight foamed concrete instead of styrene foam. Our research found thatnon-heating zone temperature of lightweight foamed concrete using AP (Aluminum Powder) and FP (animal protein foaming agent) are lower than that of light-weight foamed concrete using AES (alkyl ether lactic acid ester). Lightweight foamed concrete using AES and FP satisfied fire performance requirements of two hours at a foam ratio 50, 100. Lightweight foamed concrete using AP satisfied fire performance requirements of two hours at AP ratio 0.1, 0.15. The insulation properties were better in closed pore foamed concrete by made AP, FP than with open pore foamed concrete made using AES.
Analysis and Countermeasures for the Trouble Factors of the Spot Installation Pile Using Machine Excavation Method
Park, Hong-Tae ; Son, Chang-Baek ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 75~83
DOI : 10.5345/JKIC.2009.9.4.075
Although a range of machine excavation methods are in wide use, including casing, earth drill and reverse circulation drilling, deterioration in pile quality and faulty construction can be often found these days because of trouble in the construction field. For this study, research was conducted in the form of a survey of construction engineers working in the field in order to identify the types and the causes of trouble by focusing on all casing, earth drilling and reverse circulation drilling. By analyzing the causes of trouble, countermeasures could be presented. The data and the analysts presented in this study could be effectively used for minimizing trouble in future machine excavation work during construction.
Development of Program Management Information System Prototype to Support Urban Regeneration Based on System Requirement Analysis
Yeom, Ji-Woong ; Kim, Doo-Whan ; Ahn, Byung-Ju ; Kim, Ju-Hyung ; Kim, Jae-Jun ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 85~92
DOI : 10.5345/JKIC.2009.9.4.085
Urban regeneration projects have been actively proceeding all over Korea. Urban regeneration has become a critical issue in the domestic construction industry, with environmental-friendly construction and high-rise buildings being emphasized. Because these projectstend to become complex, urban regeneration projects require interest and approach on a level of program management that includes traditional project management. This paper develops aprototype for a new program management information system of a supports the promotion of urban regeneration projects through the deduction of the requirements about system. The prototype of the program management information system includes functions that supply diverse information, support the process and legislation of an urban regeneration project, manage stakeholders, support decision-making, estimate and manage program risks, and manage the program level.
Suggesting Solutions when Applying Building Information Modeling (BIM) to the Korean Construction Industry through Case Studies
Park, Jung-Wook ; Kim, Sang-Chul ; Lee, Sang-Soo ; Song, Ha-Young ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 93~102
DOI : 10.5345/JKIC.2009.9.4.093
When faced with new projects, such as high-rise, complex, free-formed, and sustainable buildings, numerous participants in the building Industry use Building Information Modeling (BIM) technology. In 2009, the use of BIM spread to more contractors than eyer before. This paper aims to study the definition and characteristics of BIM, and to analyze Korean BIM application problems. Solutions for the application of BIM to the Korean Construction Industry suggested, by studying cases from developed counties and from Korea.
A Study on the Implementation of USN Technologies for Safety Management Monitoring of Architectural Construction Sites
Kim, Kyoon-Tai ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 103~109
DOI : 10.5345/JKIC.2009.9.4.103
The construction industry has the highest death rate related to safety accidents of any industry. Furthermore, in contrast to other industries, where the death rate related to safety accidents has been steadily declining, both the death toll and the number of accidents in the construction industry have been on the rise. Construction accidents occur when various risks increase in an intertwined way to reach a tipping point; a moment when such factors cannot be tolerated any longer Conventional safety management methods have restrictions in terms of their ability to fully prevent all types of safety accidents. This research considers ways in which USN technology can be applied to safety management on a construction site, and derives a method of applying USN technology for safety management monitoring. The tasks related to safety management on construction sites, as well as the occurrence of accidents, are first analyzed. By analyzing the characteristics of construction accidents, the factors that must be a priority and the factors that can be a lower priority are derived. Finally, the configuration of a monitoring system for safety management on a construction site to which USN technology is applied is presented. It is expected that safety accidents can be prevented from occurring on construction sites by applying this cutting-edge USN technology.
A study on the economical analysis of non-supporting form in basement wall cases
Kim, Jae-Yeob ; Kim, Gwang-Hee ; Lee, Sang-Woo ; Sohn, Young-Jin ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 111~117
DOI : 10.5345/JKIC.2009.9.4.111
Considering the entire critical path, underground works in construction projects occupy a large part of the total construction period, as well as a large part of the construction costs. Particularly in the downtown area, the scale of underground work has been increasing every year. Currently, underground retaining walls, which are built at construction sites, require many skilled workers, and the works are being undertaken by means of the Euroform+Soldier system, which is quite disadvantageous in terms of the construction period. In order to complement this, forms made of new materials and new construction methods have been developed. Now more than eyer, the shortening of construction periods and the reduction of construction costs is required. Considering this, in this study, the researcher has tried to compare the Euroform+Soldier system, which has been the system most frequently used on construction sites, to the non-supporting form system, which has been used on the sites of civil engineering work. The results of the research revealed that although the Euroform+Soldier system was advantageous from the perspective of material costs, it was disadvantageous in terms of labor costs. It is thought that an additional study on a method for reducing the material costs is required, so as to revitalize the application of non-supporting forms to the construction site.
A Case study and Analysis on the Up-Lift Pressure Treatment Evaluation of Underground Installations for their Efficient Adoption
Ko, Ok-Yeol ; Kwon, Oh-Chul ; Shim, Jae-Kwang ; Park, Tae-Eun ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 119~129
DOI : 10.5345/JKIC.2009.9.4.119
Building construction trends have been changed dramatically in terms of size and mass. With the need to maximize land usage, there has been an increase in the construction of high-rise buildings. This affects not only the entire construction duration and cost, but also subsequent construction activities, such as work to increase underground facilities and in reclamation land area construction. These types of site conditions require soft ground reinforcement and the proper uplift water pressure treatment. In general, two kinds of methods have been used for uplift water pressure treatment systems. However, there have been some problems arising as the result of a lack of research and analysis on underground construction techniques, and a reliance on experiments over actual survey and analysis of site conditions. This paper focused on the problems of conventional selection procedure, by analyzing drawings and proposing a kind of modeling for a reasonable procedure. The results were applied to OO project as a sample construction case to be verified in this research. The initial plan in the case project was the Rock Anchor System. However, as there were terrible miscalculations of basic site conditions that had an extraordinary influence on the underground water level, such as the site`s proximity to the Han-river, it was necessary to change the plan to include apermanent drainage system. This achieved a direct construction cost reduction \ 406,702,000 and a maximum sayings of 4% of operational cost, based on the 50-year building Life Cycle Cost.
A Study on the Mechanical Properties of Recycled Aggregate Concrete Mixed Steel Fiber
Shin, Yong-Seok ; Cho, Cheol-Hee ; Kim, Dae-Sung ; Kim, Jeong-Sup ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 131~137
DOI : 10.5345/JKIC.2009.9.4.131
The rate of recycling of waste concrete, which represents the majority of construction-related waste, is increasing. However, a general recognition of the inferior qualify of recycled aggregates and their lower grade of compressive strength, bending strength, shear strength, frost resistance and ductility make the application of recycled aggregates to structures insufficient. Therefore, this study conducted material and member experiments by adding steel fiber for the purpose of improving the properties of recycled aggregate concrete. To synthesize the experimental results, it was found that specimens with a 30% steel fiber admixture had levels of compressive strength, tensile strength and frost resistance that were equivalent to or higher than the standard specimen, and that concrete that had a 30% replacement of recycled aggregates with steel fiber was suitable for application to actual structures.
Estimation of Compressive Strength of Concrete Incorporating Fine Particle Cement Considering Blaine Fineness
Han, Min-Cheol ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 139~145
DOI : 10.5345/JKIC.2009.9.4.139
This study presents an estimation of the strength development of concrete considering the equivalent age using fine particle cement (FC), which is manufactured according to the classification process. Contents and W/B were considered as experimental parameters. The strength considering the equivalent age is gradually increased, and the deviation of the strength according to W/C is increased with decrease of W/C in accordance with the replacement of the fine particle cement. For estimating the apparent activation energy (Ea) considering setting time and blame fineness of cement, Ea of the FC based on setting time is calculated with
KJ/mol, which is somewhat similar to that of OPC, while by applying Ea based on blame fineness, Ea is increased with increase of FC contents, and is calculated with
KJ/mol. Good agreement is obtained by applying Ea based on setting time, while there was remarkable variation between calculated value and measured value when Ea based on blame fineness. Therefore, it is necessary to add influencing factors in existing Ea to enhance the accuracy of the estimation.
A Study on the Work Breakdown Structure of Agricultural Facilities for Developing a Construction and Maintenance Information System -Focused on Vinyl house, Glass greenhouse, Cattle shed-
Choi, Oh-Young ; Kim, Tae-Hui ; Kim, Jae-Yeob ; Kim, Gwang-Hee ; Choi, Eung-Kyoo ;
Journal of the Korea Institute of Building Construction, volume 9, issue 4, 2009, Pages 147~155
DOI : 10.5345/JKIC.2009.9.4.147
Recently, the scale and technical complexity of agricultural production has been growing. Therefore, agricultural facilities are being gradually diversified, expanded, and made more complex. To furnish Korea`s agricultural industry with international competitiveness, it is thus necessary to introduce new management techniques. The PCM (procurement-construction-maintenance) information management system for agricultural facilities is established by setting up its WBS (work breakdown structure). In this study, the WBS of a facility such as facility, space, element, works, and resources is analyzed. Following this analysts, a WBS of an agricultural facility that is appropriate for the PCM information system of an agricultural facility, is proposed by deriving it from actual WBS.