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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
Journal Basic Information
Journal DOI :
Architectural Institute of Korea
Editor in Chief :
Volume & Issues
Volume 29, Issue 12 - Dec 2013
Volume 29, Issue 11 - Nov 2013
Volume 29, Issue 10 - Oct 2013
Volume 29, Issue 9 - Sep 2013
Volume 29, Issue 8 - Aug 2013
Volume 29, Issue 7 - Jul 2013
Volume 29, Issue 6 - Jun 2013
Volume 29, Issue 5 - May 2013
Volume 29, Issue 4 - Apr 2013
Volume 29, Issue 3 - Mar 2013
Volume 29, Issue 2 - Feb 2013
Volume 29, Issue 1 - Jan 2013
Selecting the target year
A Study on Shear Buckling Analysis and Boundary Condition of Sinusoidal Corrugated Plate by Using ABAQUS
Yoo, Mi-Na ; Shon, Su-Deok ; Lee, Seung-Jae ; Kang, Joo-Won ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 3~11
The characteristics of shear buckling about corrugated plates affect web height as well as the corrugated plate. Besides, there are complex phenomena, separated by local buckling, global buckling and ductility buckling. For this reason, the experimental and analytical study of corrugated webs are mainly conducted on shear buckling behavior and stability, whereas analytical study mainly uses commercial software. However, there are some differences between the application of boundary conditions and element modeling in the literature for each one. This study was performed to study about appropriate boundary condition in finite element analysis for sinusoidal corrugated plate. The analysis in this study was compared to shear buckling strength about each boundary condition with the plate shear theory, and shear buckling strength was obtained by converting the eigenvalues about primary mode. From the result of the analysis, the proposed boundary condition was demonstrated better condition.
A Comparison on the Ultimate Behavior of Bolted Connections with Aluminum Alloys(6061-T6) according to Bolt Shear Loading
Cho, Yong-Hyun ; Choi, Yun-Cheul ; Kim, Tae-Soo ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 13~20
Previous study on the ultimate behavior of single shear bolted connections fabricated with aluminum alloys (6061-T6) shows that in some specimens with a long end distance(e), curling ; out of plane deformation occurred and it caused the sudden strength drop of bolted connections. In this paper, double shear bolted connections with same aluminum alloys(6061-T6) were tested for comparing with single shear bolted connections in terms of ultimate strength and curling effect. Specimens with three variables (bolt arrangement, end distance(e) and edge distance(b)) were planned. All of specimens failed by block shear or tensile net-section fracture. Ultimate strengths of specimens with typical block shear fracture have increased with the increase of end distance(e). Also, it can be known from the comparison that the curling led to strength reduction by 4~30%. An investigation on reliability of current design standards for bolted connection was conducted. Ultimate strengths and failure mechanisms predicted by AISI (American Iron Steel Institute) and AAA(American Aluminum Association) were compared with those of test results. Comparison results indicate that current design standards can not predict correctly ultimate strength and failure mechanism for bolted connection with block shear fracture.
A Study on Automatic Reinforcement Placement System of Isolated Foundation based on S-BIM
Cho, Young-Sang ; Kim, Marie ; Hong, Sung-Chul ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 21~28
The purpose of this study is to enhance productivity and economic value with precise object information generation and reinforcement quantity take-off by developing the Automation Reinforcement Placement System of Foundation (ARPF). This study was conducted by selecting the most basic form, independent footing, and no force was applied on the foundation other than axial force. For the development of ARPF, variables that should be input into the typical programs directly by users were minimized through developing the reinforcement placement algorithm by using visual C# based on the reinforced concrete structure design standard. The process of reinforcement detail placement formation was performed in the Tekla Structure (TS) that has outstanding accessibility and usability of API. Objects made by applying ARPF enable information confirmation and modification, as typical ones. Through this process using ARPF, rapid and precise reinforcement quantity take-off and footing bar placement are possible. If modeling is performed on the Tekla Structures by using ARPF, a detailed 3D reinforcement placing drawing, not 2D, can be created. It is expected that this method may take a smaller amount of time and effort than the typical drawing generation method that users had to generate objects or input information themselves.
Comparison of Peak External Pressure Coefficients with Experiment and Wind Load Provisions
Kong, Yun-Bae ; Lee, Jong-Won ; Shin, Sung-Woo ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 29~36
This study has compared the equivalent external pressure coefficients,
, with 6 wind load provisions and wind tunnel test data. The wind load provisions are the ASCE 7-10, NBCC 2010, AS/NZS 2011, EN 2005, AIJ 2004 and KBC 2009. Experiment data on low-rise building have been obtained at the University of Western Ontario (UWO) to contribute to the NIST aerodynamic database. For the experiment, a model with 1:12 of roof slope and 4.9 and 12.2m of eave height was used under open terrain and suburban terrain conditions.
was re-normalized based on the external pressure coefficients,
, of ASCE 7-10. When compared to
of the experiment data with 4.9m of eaveheight in open terrain, consequently, ASCE7-10(81%), NBCC2010 (84%), AS/NZS 2011 (70%), AIJ 2004 (68%) and KBC 2009 (53%) were all underestimated. Among them, KBC 2009 reveals the lowest value. On the contrary, EN2005 was overestimated with 122%. When the eave height was 12.2m, in addition, the same pattern was observed in most codes. EN2005 was slightly overestimated with 115%. When compared to
of the experiment data in suburban terrain, in addition, the same pattern was observed in most code.
Development and Verification of Aircraft FE Model for the Missile - Target Interaction Analysis of Large Aircraft
Lee, Kyoung-Soo ; Kim, Hyo-Jin ; Han, Sang-Eul ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 37~44
In this paper, to calculate and evaluate the aircraft impact force, the missile-target interaction analysis of aircraft was simulated by using AUTODYN. The resultant reaction force of symmetric rigid wall is considered as the impact force of aircraft. The large commercial B747 aircraft was used for the missile which are using for long distance flight. The preparation of refined FE mesh and impact analysis were simulated by using Hydrocode. The aircraft debris and secondary trajectory effects were considered by the eroding effect on the FE shell element. To evaluate the impact force of aircraft, the Riera approach were used for the reference impact time history graph which provided by OECE-NEA (2002). Finally the verification of the simulated results for aircraft impact force are compared with the reference values.
The Mechanical and Chloride Penetration Properties of Concrete Mixed with Various Fiber
Kim, Bong-Seok ; Kim, Dong-Hun ; Lee, Young-Do ; Lim, Nam-Gi ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 45~52
In this study, dynamic and chloride penetration of single and hybrid fiber reinforced concrete were examined in order to apply it as cement composite material. The results are as follows. First, compressive strength of single fiber reinforced concrete was lower than OPC and mixing fiber barely had influences on it. However, tensile strength was higher than OPC and improvement of strength by mixing fiber was confirmed. Second, in case of hybrid fiber reinforced concrete, its compressive strength highly improved. HFRC 2-2 and HFRC 3-1, mixed with PP fiber in the range of 0.3(% Vol) showed more than around 30% improvement in their strength compared to OPC. Third, single and hybrid fiber reinforced concrete showed chloride penetration resistance by mixing fiber. In the scope of this study, HFRC 2-2 and HFRC 3-1 mixed with 0.3(% Vol) PP fiber showed about 35% and 48% depreciation of diffusion coefficient, respectively. As the result of the study, the number of its fibers was much higher than that of other fibers. And the fibers were well distributed to the concrete without lumps as seen in the SEM photograph. So strength and chloride penetration resistance of single and hybrid fiber reinforced concrete mixed with PP fiber were most excellent with its great adhesiveness to cement matrix.
Workability Evaluation of the Inorganic Surface Preparation Materials Including EVA Redispersible Polymer Powder for Wall
Chang, Jin-Ho ; Choi, Sung-Min ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 53~62
Surface preparation, which is generally used in domestic, uses epoxy resin that has superior quality in terms of bond strength, tensile strength, and compression strength. However it should be used subject material and curing agent exactly, it has poor workability and is expensive. Furthermore, it is extremely hard to treat pinholes in case of concrete surface and it cannot be constructed under damp environment. Therefore we tested the applicability on the polymer cement mortar using EVA re-dispersible polymer powder mortar that has excellent bond strength of epoxy resin mortar and workability of polymer resin mortar through the test. Judging by the results of pinholes concealment test and rundown test, epoxy resin mortar has good workability by self leveling but it is hard to secure concealment due to high rundown. Besides, the allowable thickness of construction, for one, is too small, it might cause deflection. There are also difficulties in partial fill of pinholes as compared to polymer powder mortar. EVA re-dispersible polymer powder mortar has higher concealment force and has no material deflection. Therefore it will be expected to secure quality and have duration reduction by improvement of workability and performance at the construction field because fill performance of pinholes has been enhanced noticeably compared to epoxy resin mortar.
A Study on the Outdoor Exposure Weather Resistance of Urethane Waterproofing Membrane
Kim, Young-Sam ; Han, Cheon-Goo ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 63~70
The purpose of this study is to grasp the outdoor exposure weather resistance of polyurethane waterproofing materials generally applied and manufactured in Korea. 6 different KS certificated products was experimented on tensile property and surface observation after 0.5 to 3years outdoor exposure, 37 to 112 days
heat ageing and 1 300 to 4 000 hours Xenon arc accelerated treatment which are major deterioration factors. In conclusion, It was found that tensile strength decreases gradually by outdoor exposure, heat ageing, Xenon accelerated exposure treatment. And tensile strength was decreased 29.3% in 3 years outdoor exposure. And Xenon arc(
heat ageing time corresponding to this 29.3% decreasing was 1 269 hour and 53 days respectively.
Classification and Items for Holistic Environmental Performance Assessment in Construction Operation Phase
Kang, Go-Une ; Lee, Ung-Kyun ; Cho, Hun-Hee ; Kang, Kyung-In ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 71~79
The construction activities has been perceived to be one of the largest contributors to pollution, with several environmental loads such as construction waste, noise, and land use. The environmental impacts of these diverse loads need to be estimated for more holistic environmental management of construction sites. The evaluation results obtained through a combination of various environmental loads depend on which loads are chosen for evaluation indicators; therefore, the validation of the assessment tool is crucial. In existing studies that deal with environmental assessments in the construction operation phase, the decisions to select the indicators are still largely based on anecdotal methods, for instance, based on a literature review or the opinion of a consultant, and hence, these indicators cannot be validated. In this study, we survey content validity ratio, conduct exploratory and confirmatory factor analysis, and verify the content validity and construct validity. The resultant list of environmental performance indicators provides standard assessment tool for a more holistic environmental assessment in the construction operation phase.
Analysis of Influence of the Direct Buying System for Small and Medium Enterprises Construction Materials on Public Apartment Construction Projects
Song, Sang-Hoon ; Bang, Jong-Dae ; Sohn, Jeong-Rak ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 81~90
As new legislation to ensure the market for Small and Medium Enterprises(SMEs) manufacturing construction materials was established in 2009, the Small and Medium Business Administration specified 123 construction materials mandatory to purchase directly and forced the public owners to provide the contractors with materials as required by related law. The owners under the obligatory Direct Buying System(DBS) are facing various problems such as the increased procurement works, inefficient on-site management, inadequate quality management activities, cost increase as the number of specified items increased and the entrusted purchase via Public Procurement Service became compulsory. This study aimed to provide the meaningful information for future system improvement and response development of stakeholders concerning Direct Buying System. In order to achieve this purpose, the impacts of the Direct Buying System on the execution and performance of public apartment construction projects were reviewed in diverse aspects, and the problems and causes of Direct Buying System were listed incurred on procurement and construction stages.
Analyzing the Operational Conditions on Daily Work Report of Specialty Contractors and Its Improvement Measures
Shin, Won-Sang ; Lee, Dong-Eun ; Son, Chang-Baek ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 91~98
Daily construction work reports is an important mean to collect productivity information involved in enacting and/or revising Construction Standard Production Unit System (CSPU), which has been used as an estimation manual for calculating the prices of public construction in Korea. However, the daily reports used by specialty contractors that perform the actual work at construction sites have different formats depending on subcontractors. Because the degree of understanding and utilization of the daily work reports formulated by specialty contractors are different, it decreases the reliability and accuracy when it is used as a source for enacting and/or revising CSPU. Succinctly, it cannot be used for collecting important work productivity data. This study develops and provides a standard data attributes and data structure for the daily work reports for specialty contractors. It examines the current state of the daily work reports used by them, identifies issues involved in using the daily work reports, and proposes a specific solution for these issues so that the daily work reports can be effectively formulated depending on the construction type in which the specialty contractors are involved and can be used as a valuable information source for enacting and/or revising CSPU.
Schedule Optimization of PC Production Operation with Mould Rebuilding
Park, Young-Jun ; Son, Chang-Baek ; Lee, Dong-Eun ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 11, 2013, Pages 99~106
The steel mould for PC production has a considerable cost effect on Precast Concrete(PC) manufacturing. PC manufacturers change the shapes and/or dimension(i.e., length and height etc) of the mould, which is called as rebuilding, to reduce the production cost. In this way, the manufacturers increase the reusability of moulds if they have a similar cross-section. Because there are various shapes and/or types of PC products(e.g., Beams, Girders, Columns), the priority of PC members production may cause different process idle time and productivity. This paper present an optimization method that 1) identifies the priorities of PC members having different mould types to minimize the process idle time between the members in daily production, and 2) evaluates schedule performance involved in PC production and/or procurement. A case study verifies the effectiveness and validity of the method. This methodology suggests the optimal production duration in PC manufacturing and priority of work. And the schedule optimization has saving of PC production cost.