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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
Effect of Compressive Loading on the Chloride Penetration of Concrete Mixed with Granulated Blast Furnace Slag
Kim, Dong-Hun ; Lim, Nam-Gi ; Horiguchi, Takashi ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 71~78
DOI : 10.5345/JKIC.2009.9.6.071
The analysis of the effect of loading on chloride penetration into concrete is very important. In this study, we confirmed that the chloride penetration rates for plain and BFS concrete were increased by 47% and 89% under compressive stress, respectively. The diffusion coefficient of BFS concrete was lower than for conventional concrete with no BFS, no loads, and under stressed states. Therefore, BFS substitution plays an important role in the repression of chloride penetration even under compressive stress. Under compressive stress,the diffusion coefficient for BFS concrete was higher with increasing stress, and this was also the case for plain concrete. However, BFS concrete was strongly influenced by compressive stress in comparison to plain concrete. We investigated the effect of the difference of specific surfaces on the diffusion coefficient. As a result, the larger specific surface of BFS exhibited a lower diffusion coefficient. This tendency was most pronounced under the high stress conditions.
A Study on the Evaluation Index of Dwelling Environment Performance at Skyscraper
Park, Hyeon-Ku ; Yang, Seung-Hee ; Go, Seong-Seok ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 79~89
DOI : 10.5345/JKIC.2009.9.6.079
More and more domestic skyscrapers have been rapidly constructed to get enough living space for people living in overcrowded cities. The purpose of skyscrapers is to provide citizens with useful facilities and to establish landmarks and also national and regional symbols. Previous studies have been conducted which focused on the structure, materials, plans, maintenance, and relevant information regarding skyscrapers. Skyscrapers, however, are different from other smaller buildings regarding the residential environment as well as in other ways. Recently, several problems have been raised in that the indiscreetness of current skyscrapers cannot guarantee residents a high quality living environment, and they might contain risks unless criteria are put forward to ensure that the design and facilities provide for this aim. It is judged that a set of performance criteria for the residential environment to ensurethe residents` quality of life could solve this problem. This study therefore aims to suggest a method for the improvement of the residential environment of skyscrapers by establishing residential environment evaluation factors. In conclusion, this study calculates the weight of each evaluation factor using AHP (an analytic hierarchy process) and suggests evaluating criteria. It is expected that this study could be used to propose guidelines for residents at the design and planning stage of building a skyscraper.
Critical Management Factors of Fluid-Applied Membrane Waterproofing Work for building basements
Kwon, Hae-Rim ; Yu, Jung-Ho ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 91~98
DOI : 10.5345/JKIC.2009.9.6.091
One role of waterproofing work is to block external moisture and water. Defects in waterproofing work in building construction brings on huge repair costs for related construction work as well as for the waterproofing layer itself. However, we don`t have a quantitative probabilistic management method for waterproofing work to successfully anticipate and prevent defects. From an analysis of the literature and prior research, defects in the waterproofing work in the underground parts of buildings occur frequently. We selected Fluid-Applied Membrane waterproofing work as representing waterproofing work in the underground parts of a building, and researched the general types and causes of defects. In this study, we developed the Relative-FMEA (Failure Mode and Effect Analysis) approach that merges the Matrix method and FMEA. From a survey of experts, we deduced the most important management factors for Fluid-Applied Membrane waterproofing work for the underground parts of buildings.
A basic design of P-C-M Support System in Agricultural Facilities
Gim, Mi-Gyeong ; Shin, Han-Woo ; Kim, Tae-Hui ; Kim, Gwang-Hee ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 99~104
DOI : 10.5345/JKIC.2009.9.6.099
This study is the basic design of a P-C-M support system for Agricultural Facilities. By utilizing this system, many users of Agricultural Facilities can easily obtain a large amount of information, ranging from procurement to maintenance. The procurement phase suppliesthe user with agricultural facilities information, economical analysis, and corporation information for procurement decisions. Furthermore, this phase shows the shape or format of the agricultural facilities, the main materials, as well as information on the cultivated crops. The construction phase shows information about agricultural facility-related laws, as well as standard drawings or a construction guide. The maintenance phase shows a guide of maintenance-related checklists. With the results of a basic design of a P-C-M Support System for Agricultural Facilities, the P-C-M support system menu tree is established.
Estimation of Construction Equipment Production Rates based on Simulation;Cycle time of backhoe & loader
Han, Ye-Ryeong ; Park, Hee-Sung ; Chang, Chul-Ki ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 105~111
DOI : 10.5345/JKIC.2009.9.6.105
Construction equipment is a very important factor for successful construction. Also, the cost for construction equipment is a major part of the cost of construction. Therefore, the estimation of the equipment cost is a critical task in construction planning. A formula for production rates shown in `Standard Unit Labor` has been used to estimate construction equipment capability and cost. Although the performance of the equipment has improved over time, the variables in the formula have not been updated in a timely manner. Therefore, this paper has analyzed the preceding research, and performed several site visits to measure the cycle time of a backhoe and a loader. Construction equipment production rates were calculated with collected cycle times and variables given in `Standard Unit Labor`. In addition,production rates were estimated considering the circumstances of various sites with the simulation program `crystal ball.`
An Experimental Study on the Curing Method and PP Fiber Mixing Ratio on Spalling Resistance of High Strength Concrete
Han, Cheon-Goo ; Kim, Won-Ki ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 113~119
DOI : 10.5345/JKIC.2009.9.6.113
This study is to investigate the fundamental and fireproof qualities of high strength concrete corresponding to changes in the curing factors and the PP fiber ratio. The results were as follows. For the fundamental characteristics of concrete, the fluidity was reduced in proportion to the increase in the PP fiber ratio. The compressive strength was somewhat reduced according to an increase in the PP fiber ratio. However, it had the high strength scope of more than 60 MPa at 7 days and of more than 90 MPa at 28 days. On the spalling mechanism followed by changes of the water content ratio, spalling was prevented in all combinations, except the specimen without PP fiber and subjected to 3.0% of moisture contents. When spalling was prevented at that time, the residual compressive strength ratio was 22%~41% and the mass reduction ratio was 5%~7%, which was relatively favorable. As the spalling mechanism corresponds to changes in the curing method, spalling was prevented in concrete with a PP fiber mixing ratio of more than 0.05% in the event of standard curing, and in concrete with a PP fiber mixing ratio of more than 0.10% in the case of steam curing and autoclave curing. In these cases, when spalling was prevented, the residual compressive strength ratio was 23~42% and the mass reduction ratio was 7~11%. In these results, the ease of spalling prevention in high strength concrete was inversely proportional to the water content ratio. Depending on the curing method, spalling was prevented in concrete with over 0.05% PP fiber with standard curing and in concrete with over 0.1% PP fiber with steam curing and autoclave curing.
An Improvement of Concurrent Placement of Footing and Slab Concrete
Lee, Dong-Hoon ; Choi, Jae-Hwi ; Kill, Jong-Il ; Seo, Deok-Seok ; Kim, Sun-Kuk ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 121~129
DOI : 10.5345/JKIC.2009.9.6.121
The construction sites of small and medium buildings have small scale groundwork and the depth of excavation is often shallow. In this case, if the groundwork, girders, and ground slabs are built simultaneously by embedded assisting form rather than the existing conventional method to place concrete twice using the general form, we can expect to reduce the frame duration of the basement, resulting in cost savings. The existing embedded assisting form is restricted from use because there are cost problems with materials, labor costs,and with quality depending on the form`s type. Therefore, this study is to provide an improved suggestion of building the groundwork, girders, and ground slabs simultaneously with Polystyrene by using the embedded assisting form. It also will compare the technique with existing methods of construction, and will verify its usefulness by evaluating each method of construction.
An Analysis Of Optimized Super Tall Building Tower Crane Selection Which Related With Project Construction Period
Cho, Ji-Hun ; Cho, Heung-Goo ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 131~139
DOI : 10.5345/JKIC.2009.9.6.131
It is critical to select the appropriate type of tower cranes for the construction of super tall buildings. However the selection is often made based on subjective personal experiences due to the lack of historical and analytical data. As a result, planning mistakes and efficiency errors sometimes occur. This research is to develop a system of hoisting analysis for appropriate tower crane selection and to provide a flexible statistical model based on the Burj Dubai project. In addition, this system hassupporting functions that can estimate the target construction period per floor, and a decision-making construction period computation method which is based on the characteristic of the selected tower cranes.
Comparison of Development Length Equation of Bottom and Top GFRP Bars with Splitting Failure
Ha, Sang-Su ; Yoon, Joon-Sun ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 141~149
DOI : 10.5345/JKIC.2009.9.6.141
The objective of this study was to propose a development length equation for bottom and top GFRP bars. Including the bottom and top GRPP bars, a total of 104 modified pullout tests were completed. The test variables were embedment length (15, 30, 45db), net cover thickness (0.5~2.0db), different GFRP bar types, and bar diameters (10, 13, 16mm). The average bond stresses were determined based on the modified pullout test results. Two variable linear regression analyses were performed on the results of the average bond stresses. Utilizing the 5% fractile concept, a conservative development length design equation was derived. The design equation of the development length for bottom and top GFRP bars was proposed and the design equation derived in this study was compared to the ACI 440.1R-06 committee equation.
Analysis of Pre-construction Processes and Development of KMS Prototype of LNG Plant Projects
Won, Seo-Kyung ; Lee, Jun-Bok ; Han, Choong-Hee ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 151~159
DOI : 10.5345/JKIC.2009.9.6.151
Recently, overseas construction projects have been increasing in the Middle East and Southeast Asia regions. These projects require various licenses and technologies for the manufacturing and handling processes. Additionally, the efficiency of the entire process management life cycle determines the success or failure of the business. Nonetheless, there exist various risks involved in the whole life cycle process due to a lack of experience and knowledge of management techniques. The objective of this paper is to analyze the business process of a LNG plant throughout the pre-construction and procurement phases, and to identify the knowledge and information needed for the development of the KMS. The study also plans to build a comprehensive knowledge management system throughout the whole life cycle as its final objective.
A Study on the Development of a Non-supporting Form for Basement Wall and the Analysis on Its Economical Efficiency
Kim, Jae-Yeob ; Lee, Sang-Woo ; Sohn, Young-Jin ; Kim, Gwang-Hee ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 161~168
DOI : 10.5345/JKIC.2009.9.6.161
In an architectural construction, underground construction is a critical path forming a major part of the total construction period and cost, and particularly in big cities, its size has been increasing every year. A basement wall currently constructed in the field needs a large functional work force, and the construction is under progress by the Euroform and Soldier system, which is disadvantageous in terms of the construction period. Therefore, in this research, non-supporting forms which are applicable to the buildings construction were developed, based on the non-supporting forms partly used in some civil engineering works. In addition, the size of a form was assumed and its economical efficiency was compared to that of the Euroform and Soldier system which is used most in construction fields, and the results were analyzed. The study results showed that the construction cost of composite non-supporting forms was higher than that of the Euroform and Soldier system by about 8%, and the construction cost of non-composite non-supporting forms were lower than that of the Euroform and Soldier system by about 9%. However, in the case of composite non-supporting forms, the amount of concrete and reinforcing rods remarkably decreased in structural construction, so it has the effect of an economical cost reduction compared to the construction cost of existing walls by about 35%
Analysis of Bending Wire Mesh
Kim, Chun-Ho ; Jung, Dae-Suk ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 169~174
DOI : 10.5345/JKIC.2009.9.6.169
We conducted structural analysis to investigate disadvantage of wire-mesh arranged at the plane and to develop three-dimensionally bent U-type wire-mesh. In all case that distributed loading at the whole top slab and the half top slab, and the wire mesh was bent
, flexura tensile stress was the fewest in both positive moment and negative moment, and the wire mesh was bent
in crossway the shear stresss was the fewest. Therefore, by arranging wire-mesh with
more bent than plane, flexura tensile stress, shear stress, displacement will be reduced and structural function will be improved.
A Study on the Strength at an Early Stage of the Compound Mixed into Polycarboxylate
Ryu, Hyun-Gi ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 175~181
DOI : 10.5345/JKIC.2009.9.6.175
In this research, experiments were conducted to find out whether polycarboxylate could be used as a crude steel admixture for practical work, depending on the change in the replacement level of the compound mixed into polycarboxylate. Its fluidity was satisfactory, its airspace was a bit smaller than the KS standard, and its unit volume weight was proven to meet the standard. The amount of bleeding was smallest in B2, and in terms of the solidification time, the first and the last solidification was faster in A1, B1, and C1. With regard to the compressive strength in early days as acharacteristic of hardened concrete, all addition rates of 7-day C2 displayed the highest strength value, among which the addition rate of 1.3% had the biggest strength performance tendency. The seal strength also showed the strength performance rate which was about one tenth as big as that of the compressive strength. The length change rate resulting from dryness and contraction was proven to be good, and once the appropriate AE air entraining agent is used, it is evaluated to be a very useful and practical compound out in the field.
A Study on Procurement of Construction Materials in the HwaSeong Construction Project
Kim, Kyoon-Tai ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 183~188
DOI : 10.5345/JKIC.2009.9.6.183
HwaSeong (Suwon Fortress) was built during the reign of King Jeong-jo in the Choseon Dynasty. Detailed information on the construction of HwaSeong can be found in Hwaseong Seongyeok Euigui. In this sense, it is necessary to perform a comparative analysis on the Hwaseong Seongyeok Euigui based on construction management factors. This paper aims to analyze the HwaSeong construction project from a modern construction perspective by comparing and reviewing information related to the procurement of construction materials of the time. For this, wooden and steel materials and tiles were analyzed by supply area, supply channel, type and price. From the results of the analysis, it is found that the government used both private and official channels to supply materials. In particular, except for wooden materials that could be supplied from Bongsan, the supply of materials showed a high dependency on private channels. In terms of steel, it was almost 30 percent cheaper through private channels than when purchased through the official channel. Finally, materials vulnerable to damage like tiles were manufactured from the areas near the construction site. From this fact it can be interpreted that the government had a flexible procurement system, including manufacturing on the spot and external suppliers,depending on the property of the material. It is expected these analytical results will serve as key data to understand the management factors in constructing HwaSeong.
Cost Analysis of Construction Phase in Basement Composite Wall Form
Choi, Oh-Young ; Heo, Kyoung-Moo ; Kim, Tae-Hui ; Kim, Jae-Yeob ; Kim, Gwang-Hee ;
Journal of the Korea Institute of Building Construction, volume 9, issue 6, 2009, Pages 189~195
DOI : 10.5345/JKIC.2009.9.6.189
Recently, the urban centralization phenomenon appears to be growing. As a result, many vigorous efforts for the use of underground space are being made. In particular, the basement depth of construction in the downtown area has deepened and construction is often done close to adjacent buildings. In this case, generally, the underground construction approach mainly used is the composite basement wall system. However, a cost analysis of the basement composite wall system does not exist. Therefore, in this study, the cost of the composite basement wall system was analyzed. The percentage breakdown of costs were: buttress work processes, 3% form work processes, 26% reinforcement work processes, 12% support work processes, 42% and other processes,17%. Accordingly, it will be necessary when developing new technology and construction methods to determine the development focus.