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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Architectural Institute of Korea Structure & Construction
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Journal DOI :
Architectural Institute of Korea
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Volume & Issues
Volume 30, Issue 12 - Dec 2014
Volume 30, Issue 11 - Nov 2014
Volume 30, Issue 10 - Oct 2014
Volume 30, Issue 9 - Sep 2014
Volume 30, Issue 8 - Aug 2014
Volume 30, Issue 7 - Jul 2014
Volume 30, Issue 6 - Jun 2014
Volume 30, Issue 5 - May 2014
Volume 30, Issue 4 - Apr 2014
Volume 30, Issue 3 - Mar 2014
Volume 30, Issue 2 - Feb 2014
Volume 30, Issue 1 - Jan 2014
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An Analytical Modelling of Bracket Complexes in Traditional Wooden Structures Using a Simple Flexural-Axial Spring
Jung, Sung-Jin ; Lee, Min-Sub ; Park, Se-Hee ; Kim, Seok-Hwan ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 3~10
DOI : 10.5659/JAIK_SC.2014.30.1.003
The Bracket Complexes, the Gong-Po in Korean, has been widely used in many traditional wooden structures, such as temples, places and moonru(Korean Traditional Gate Tower) in Korea. It is usually known that the Gong-Po is used for the load transfer from roof to frame and for the connection and combination between upper structures and lower structures in structural engineering. Thus, it is very important to estimate rationally the behaviors of the Gong-Po and establish a modelling method in commercial structural analysis programs for the reasoning of stability in traditional wooden structures. But, until now, practicing professionals are confused in modelling of the Gong-Po and assigning its structural characteristics in structural analysis of traditional wooden structures because there are not a explicit modelling method applicable to the commercial programs, In this study, basic behaviors of the Gong-Po and material models of timber on other papers are studied first. On the basis of these theoretical backgrounds, a modelling method of the Gong-Po is presented and a calculating method of its longitudinal and rotational stiffness are formulated, depending on the geometric measures and material properties. To estimate if the modelling method proposed is applicable to the Gong-Po in traditional wood structures, we applied this method to the Gong-Po of Heunginjimum and investigate the structural behavior of Heunginjimum using a three-dimensional structural analysis.
Efficiency Analysis of Structure System of Pile Cross Section in the Permanent Basement Wall
Noh, Sam-Young ; Kim, Seung-Hun ; Lee, Wang-Hee ; Youn, Sol ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 11~18
DOI : 10.5659/JAIK_SC.2014.30.1.011
In spite of the large stiffness of the Cast-In-Place Concrete Pile(CIP) wall, it is used only temporarily, because CIP wall construction shows the difficulty of keeping straightness and unification in the joint between each pile. Recently the Uni-wall method which improves the disadvantage of the CIP temporary wall is being developed for the use of Permanent Basement wall (Permanent Uni-wall System, PUS). The PUS is constructed in combination of piles consisting of circular casing piles and specially, shape casing piles with concave sides. The piles may be designed as reinforced concrete structure, steel-frame structure, steel-framed reinforced concrete structure and their combination In this paper Axial force-bending moment interaction curves are prepared for the three structural types of unit cross section. Applying the analysis results for a selected prototype structures, efficiency of the three structural section types are analyzed, based on the construction cost for varying number of basement stories.
Bond-Slip Relationship of Beam Flexural Bars in Interior Beam-Column Joint Subjected to Cyclic Loading
Hwang, Hyeon-Jong ; Eom, Tae-Sung ; Park, Hong-Gun ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 19~30
DOI : 10.5659/JAIK_SC.2014.30.1.019
Under cyclic loading, the structural performance of reinforced concrete (RC) beam-column connections is significantly affected by the bond-slip of beam re-bars. In the present study, a bond-slip model was developed to evaluate bond-slip of beam re-bars in beam-column joints. The proposed model estimated the bond-slip relationship using simplified bond strength and bar strain distribution in the beam-column joint. To consider the cyclic loading effect, the bond strength was defined from the existing test results of beam-column connections that showed complete bond failure. For verification, the prediction of the proposed model was compared with existing test results of concrete block specimens for bond-slip and beam-column connection specimens. The result showed that the proposed model predicted well the bond strength degradation and bond-slip in the beam-column joints.
Representation of the Shape and Layout of Rebars using IFC at Construction Document Phase
Jung, Jong-Hyun ; Lee, Jae-Cheol ; Kim, Chee-Kyeong ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 31~38
DOI : 10.5659/JAIK_SC.2014.30.1.031
The purpose of this study is to manage the detailed data on the shape and layout of rebars in RC structures using IFC at construction document phase. To accomplish the purpose, we investigated the way to represent the shape and layout of rebars at construction document phase and reviewed the related studies and the IFC data structures about rebars. Then we proposed the way to make use of and extend the existing IFC data structures using user-defined Pset. Finally, we developed the application for generation and reading of IFC file in which the data on the shape and layout of rebars are represented in the proposed way. From the results of execution of the application, we concluded that, at construction document phase, 1) there are nested 1:n relations among member, rebar layer, rebar group, and rebar, 2) in addition to the 3-d geometrical shape, the conceptual shape expressed by parameters and geometry for fabrication are also required, 3) IfcElementAssembly entity can represent the rebar layer and rebar group and can manage their complex 1:n relations properly, 4) IfcReinforcingBar entity can represent rebars, 5) the user-defined Psets proposed in this study can represent the conceptual shape and geometry for fabrication of rebars.
A Study on the Strength Properties of the Binary Blended Geopolymer Concrete with Red-mud
Lee, Sun-Kwan ; Kim, Young-Su ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 39~46
DOI : 10.5659/JAIK_SC.2014.30.1.039
Recently, carbon dioxide emissions have increased in succession according to the development of industry. Also, cement of construction materials is being increased carbon dioxide during the manufacturing process. It is predicted that amount of carbon dioxide will be produced about 10 % in the world. As a way of solve this problem, it is used to reduce the amount of cement and to replace cement using industrial by-products such as blast furnace slag, fly ash, and red-mud. but, these are not advanced in our country. Thus, the purpose of this study is to analyze the strength property of geopolymer concrete with red-mud. Also, this study carries out the basic performance test of geopolymer concrete such as, air content, slump, and compressive strength. As mentioned above, geopolymer concrete containing 10 % of red-mud in all mixes was the highest. and geopolymerization reaction as alkali activated solution has occurred quickly the improved strength in early age and the results of chemical analysis, which development of strength were detected ions(Si, Al and Ca etc).
Thermal Insulation Performance of Waterproofing Membrane System with a Multi-Layer Thermal Insulation Sheet
Song, Jae-Seung ; Miyauchi, Hiroyuki ; Miyauchi, Kaori ; Lee, Jun ; Youn, Yong-Sang ; Kim, Gyu-Yong ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 47~54
DOI : 10.5659/JAIK_SC.2014.30.1.047
Thermal insulation performance of a multi-layered waterproofing membrane system with sandwich type of polyethylene foam and aluminum film was evaluated by using small specimen in the indoor environmental test chamber, and was compared with the effect of insulation sheet layers, the heat load on concrete substrate or the correlation with outdoor test results. The test specimens were 6 types; only concrete, single urethane system and some multi-layered systems with thermal insulation sheet. The indoor test was carried out with temperature cycles of
. The temperature of specimens were calculated by using the simplified calculation equation about the effect of season and specimen size, and the thermal insulation behavior between measurement value and the predicted value of had a good correlation. Also, the waterproofing system with multi-layered insulation sheets had a high insulation performance than that of existing systems, and can contribute to the reduction of heat load on concrete substrate and the saving energy.
A Study on the Development of Building Life Cycle
Ha, Sung-Kyun ; Park, Pil-Ju ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 55~62
DOI : 10.5659/JAIK_SC.2014.30.1.055
GHG emission of building sector is focused on important issue because the emission amount is one quarter in total emission amount in Korea. In this study, program that is calculation tool of building GHG emission amount was developed to calculate building GHG emission though the building's whole life cycle. In this study, program that is calculation tool of building GHG emission amount was developed to calculate building GHG emission though the building's whole life cycle to prevent global warming. As the reason, GHG emission amount of building sector is one quarter in total GHG emission amount in Korea. For developing the program, the entire process for calculating GHG emissions of building was applied ISO 14040 standard that is international standards of life cycle assessment. In addition, conventional programs were researched for applying their characteristics to our program. Based on this, the program calculates building GHG emission through each of blinding life cycle stages that are materials product, building, management of construction and disposal/recycle. For providing convenience to user, the program has automatic function which is result of material amount through BIM program and energy consumption calculation program is imported to the program.
Optimal Operation-Guarantee-Period for Small Size Sales Facility within the Public Park Procured by Public-Private-Partnership
Huh, Young-Ki ; Oh, Jea-Ho ; Lim, Jin-Ho ; Jeong, Kyeong-Soon ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 63~70
DOI : 10.5659/JAIK_SC.2014.30.1.063
Although many people visit and enjoy the park thanks to the improvement of their living standard nowadays, they experience much inconvenience from insufficient modernized sales facilities. However, public bodies maintaining the parks encounter difficulty to overcome the problem mainly due to shortage of their budget. Three perspective places for sales facilities within two public park in B city were selected in order to demonstrate a simple yet reasonable approach for the bodies to decide an optimal guarantee-operation-period, when they procure the facilities by means of the PPP(Public-Private-Partenership). Number of visitors nearby the places were counted and surveyed in order to forecast annual visitors and sales volume. Then, NPV and Monte-Carlo Simulation was employed to produce probability distribution of the optimal guarantee-operation-period for each facility. The methodology can be a great interest for the public authorities to expand facilities in their park.
A Methodology for Measuring and Assessing Construction Worker's Near-misses
Lim, Tae-Kyung ; Lee, Sang-Soo ; Lee, Dong-Eun ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 30, issue 1, 2014, Pages 71~79
DOI : 10.5659/JAIK_SC.2014.30.1.071
Near-misses which foretell danger signs for potential accidents provide valuable information for safety management on a job-site. Even thought a number of near-misses are caused by construction workers on a job-site everyday, it is difficult to use near-misses information to identify worker inherent risks and establish safety measures due to the absence of a clear definition and an evaluation method for the near-miss. This study aims to present a systematic methodology which effectively measures and analyzes near-misses occurred by a specific worker and provides a personalized safety guidance. This research was conducted as follows: firstly, the term of a near-miss was redefined by the literature survey and previous studies relative to quantifying the accident risk in the view of worker's behavior were investigated; secondly, a standard motion taxonomy for near-misses was developed to facilitate monitoring the type and time of occurrence of the near-miss accident and near-miss weights along to the standard behaviors were obtained by survey analysis and then a mathematical model to calculate the near-misses index (NMI) was developed; finally, a case study was performed to evaluate the practicality of the proposed assessment model for near-misses of construction worker.