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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
An Evaluation on the Shear Strength of Large Double-Head Shear Stud in High Strength Concrete
Shim, Hak-Bo ; Chung, Kyung-Soo ; Kim, Won-Ki ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 3~10
Shear studs are commonly used to transfer longitudinal shear forces across steel-concrete interface in composite member design. A lot of push-out tests of shear studs embedded in normal and high strength concrete were conducted. But there is not study of shear stud considered resistance of horizontal load and bearing strength of concrete until now. In this paper, it was performed push-out tests of large double head shear stud embedded in high strength concrete.(double head stud means that head of stud was installed on the above and the lower part.) and the strength of shear stud was evaluated with bearing strength of concrete and resistance of horizontal load between concrete slabs. Experimental push-out tests were compared with theoretical calculation results.
Comparison of Design Code Damping Formulae and Measured Damping Ratios of Tall Buildings under Wind Loads
Jeong, Jin-Hee ; Kim, Hong-Jin ; Choi, Sun-Young ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 11~18
It is very important to access the damping ratio accurately in the wind design of tall buildings, but the damping ratio is not specified in the Korean Building Codes and thereby the values provided in foreign codes are adopted somewhat arbitrarily by engineers. The significant portion of concrete tall buildings in Korea has the shear wall structure system, and residential buildings have larger gravity load than buildings in other countries due to the use of floor heating system. Therefore, the damping ratio provided in foreign codes may not be directly applied to design of tall buildings in Korea. In this study, the damping ratio of actually built concrete buildings are measured and compared to those provided in foreign codes. It was found that damping ratio of tall concrete buildings decreases as the height of the buildings increases and the measured values are significantly smaller than 2.0% of the ASCE code.
Flexural Experiments and Strength Evaluation of Cast-In-Placed SHCC and Reinforced Concrete Composite Slabs
Cho, Chang-Geun ; Han, Byung-Chan ; Moon, Hyung-Joo ; Lim, Hyun-Jin ; Lee, Seung-Jung ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 19~26
In this study, a system of the cast-in-placed SHCC and reinforced concrete composite deck slab was newly designed. A series of experiments on the developed composite slabs was evaluated to compare with a reinforced concrete slab by four-point slab bending test. From the experiment, it was known that the developed composite slabs showd improved flexural responses such as not only in the control of crack width and reducing transverse displacement of the slab under the service load level but also in increasing the ultimate load and deformation capacities of the slab.
An Experimental Assessment on Shear Behavior of High Strength Recycled Coarse Aggregate Concrete Beams
Baek, Seung-Min ; Kim, Woo-Suk ; Kang, Thomas H.K. ; Kwak, Yoon-Keun ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 27~36
In this study, to promote the recycling of construction wastes, an experimental research program was carried out. The shear behaviors of high strength recycled coarse aggregate (RCA) concrete beams was targeted. Also, this experiment investigated the shear strength and associated properties of high strength RCA concrete beams. In this study, a total of twenty eight RCA concrete beams without stirrups were tested under two-point loads. The variables studied in this investigation are the shear span-to-depth ratio (a/d = 2, 3 and 4), RCA replacement ratio (0, 15, 30 and 50%) and longitudinal steel ratio (0.80, 1.27 and 1.84%). Design concrete compressive strength of 50 MPa was used. This research can be used toward the establishment of the structural design standard for RCA concrete beams and their shear strength.
Characteristics of Pressure Fluctuations on Tapered and Setback Tall Buildings
Kim, Yong-Chul ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 37~44
Recent tall buildings tend to have irregular and unconventional shapes as a prevailing but unavoidable trend, which is very effective for suppressing across-wind responses. Suppression of across-wind responses is a major factor in safety and habitability design of tall building projects, and the so called aerodynamic modification method is comprehensively used. While the effectiveness of aerodynamic modification in reducing wind loads has been widely reported, there have been few detailed investigations of pressure fluctuations. The purpose of the present work is to investigate the spatio-temporal characteristics of pressure fluctuations applied to height-modified tall buildings, including differences of vortex formation and shedding mechanism based on the previously reported mechanism of a conventional square tall building. The results show that taper and set-back affect on the bandwidth of power spectra and position of peak frequencies. And through taper and set-back, the height at which the vortex begins to form moves up, and due to the small building dimension, the vortex component formed at that height sheds from the building more frequently before an inverted conical vortex is formed over the whole height.
Mechanical Behavior Characteristics of Stone Pagoda Structure considering Stylobate Damage Factor
Kim, Ho-Soo ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 45~52
The stone pagoda structures have been constructed in outside place and are exposed at various damages due to the physical phenomenon and natural disaster. Especially, the damage of stylobate has an effect on the safety of the whole structure because the stylobate on the foundation supports the upper structures and loads. Therefore, the various design variables are derived through the investigation for the several damages in stylobate and influence factors on the whole structure. Also, this study evaluates the mechanical behavior characteristics for the representative models considering the stylobate damage factors through the structural analysis and modelling. Through the analysis results, the damage factors in the stylobate occur the stress concentration on the neighbor elements and influence on the safety of the whole structure.
Developing Global Green Building Codes-Material and Construction (KBC-MC) - Directions and Table of Contents -
Shin, Jun-Ho ; Lee, Han-Seung ; Park, Won-Jun ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 53~60
There are eighteen specific codes in relation with building construction including KBC(Korea Building Code) to achieve appropriate construction quality. These codes were established or revised in a separate way focusing on the safety and functional purpose without an agreement of technical terms, and don't reflect the current trends of green design, sustainable development and public welfare. In this point of view it is necessary to revise the KBC globalized including green and welfare beyond the scope, safety and function, in the existing code. This paper aims to propose the orientation to establish or revise the KBC by comparison of codes of seven countries, analyzing their features and implications on the area of building material and construction (KBC-MC).
A Study on the Basic Properties of Mortar using Rice Straw Ash
Eom, In-Hyeok ; Jeong, Euy-Chang ; Kim, Young-Su ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 61~68
The purpose of this study was to investigate availability of rice straw ash as concrete admixture, by analyzing properties of mortars using rice straw ash with replacement ratio in comparison with plain mortar. In order to measure amount of
of rice straw ash, XRF(X-ray fluorescence) analysis was tested. Also to evaluate properties of mortars using rice straw ash, mortar flow, cement setting time, compressive strength was tested and micro-structure of rice straw ash was observed using SEM(scanning electron microscope). The results of experimentation are as follow. As a result of XRF analysis, the higher firing temperature of rice straw, the higher amount of
. Through observation of SEM, it is found that grain shape of rice straw ash has round form and dense structure while grain shape of rice husk ash has angular form and porous structure. Flow of mortars using rice straw ash measured 190~220mm and using rice straw ash tend to increase mortar flow with replacement ratio. When using rice straw ash, cement setting time was delayed up to 1 hour in initial setting time and was delayed up to 1 hour 30 minutes in final setting time. In mortar compressive strength test results, effect of strength increase was presented clearly. Compared to plain mortar, compressive strength of mortar using rice straw ash measured level of 105~116%. From the results, it seems that using rice straw ash as concrete admixture is available.
A Study on Developing BIM Template based on Public Procurement Service Standard Construction Code to Improve the Efficiency in Carbon Dioxide Assessment of Buildings
Bang, Jun-Sik ; Tae, Sung-Ho ; Kim, Tae-Hyoung ; Roh, Seung-Jun ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 69~76
This study is aimed at utilizing LCA processor with BIM template, eliciting the problems of the existing
assessment by constructing the database for values of green buildings. With the rise of Building Information Modeling application and green building assessment, studies on assessment of
emissions from buildings using BIM are needed. Based on the research of construction materials, this study develops database by applying Korea Procurement Agency Item Code to BIM Template. In BIM program, while Procurement Agency Item Code of construction material information is established, application building components to its assesment is also performed. After constructing BIM materials based on database, input-output tables and Korea LCI database to standard item code of public procurement service are also used for assessment The results of this research make it possible to assess
emissions of materials with BIM Template and building data modeling implementation.
Study on the Engineering Properties of Concrete according to the Use of the Polyether Derivative
Kim, Seong-Deok ; Son, In-Suk ; Park, Byung-Keun ; Jung, Sang-Jin ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 77~84
The basic properties and length change characteristic of the polyether derivative, which is a shrinkage reducer, were analyzed to reduce the drying shrinkage and cracks of general concrete, and the basic properties and drying shrinkage characteristic of the concrete were analyzed according to the addition of industrial byproducts (FA and BS), which are used to support eco-friendly policies and to ensure economic feasibility. The results showed that the concrete mixture of 100% normal Portland cement had a lower fluidity and compressive strength when the added polyether admixture volume was greater. The drying shrinkage also decreased. The addition of BS and FA improved the fluidity of the concrete, in both cases with and without the addition of the polyether admixture The strength was low in the early stage because of the substitution of BS and FA, and increased with the lapse of time. The length of the concrete specimen decreased according to the addition of the admixture alone, and the addition of FA resulted in a lower length change rate than the addition of BS when the polyether admixture addition rate was 0% and 4%. In conclusion, the use of the polyether derivative for the general concrete (normal Portland cement) reduced the compressive strength, but improved the drying shrinkage reduction. The results with the normal Portland cement showed that even the addition of BS and FA alone had a shrinkage reduction effect, although it was small.
Profit/Cost Prediction Model for Economic Feasibility Assessment on Aged-Housing Remodeling Projects
Kim, Wan-Hyuk ; Cha, Hee-Sung ; Shin, Dong-Woo ; Kim, Kyung-Rai ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 85~92
Most Aged-Housing Remodeling Projects are going with little expected profit lacking in certain types of index or standard for decision making. Due to the lack of knowledge for the remodeling, lack of profit caused by official disapproval for the vertical building extension, limitation of space caused by the existing building structure, unprofessional business subject and delay of remodeling business, the aged-housing remodeling market in korea have not been activated. Due to the slowdown in the remodeling industry with lack of relevant data, there is a shortage of research for evaluating profit and cost of aged-housing remodeling projects. In this study, the authors suggest that aged-housing owners can take advantage of the early decision-making process in terms of feasibility and Profit/Cost Prediction Model on aged-housing remodeling. For this purpose, literature review and interviews with experts in remodeling factors affecting profit and costs are analyzed. Based on this analysis, the evaluation items and criteria are established. Through case studies and multiple regression analysis, profit/cost prediction model for aged-housing remodeling projects is proposed using Hedonic price modeling method.
Experimental Study on Characteristics of Temperature Record and Concrete Strength According to Application of Insulation Form System to Cold Weather Wall Concrete Work
Bae, Dae-Kwon ; Kim, Jin-Bong ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 93~100
This is an experimental study on characteristics of temperature record and concrete strength according to the use of large panel form with application of insulation form system to cold climate wall concrete work. For the study, it installed a refrigerated container for test in which internal temperature could be controlled for similar temperature environment with outside. 3 test pieces were assembled in the lab. One test piece was a general form and the other were insulated forms combined with molding extrusion polystyrene with vinyl and adhesive spray bond. General form test piece and one insulated test piece were heated by flood light inside the form, and the other piece did not install flood light. The temperature of the lab is between
with daily fluctuation. It analyzed the expression characteristics of curing strength of concrete by age and temperature distribution per part. As a result, test piece II and III had an effect of preventing early aged freezing damage prevention compared with test piece I of tent curing and heat curing. It means the insulation form promotes blocks the influx of low outdoor temperature and utilizes heat of hydration for concrete curing temperature maintenance that promotes concrete strength expression.
Formation of Collaborative Networks in Construction Project Teams From a Complex System Perspective
Son, Jeong-Wook ; Yi, June-Seong ; Shin, Seung-Woo ; Oh, Jin-Hee ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 101~108
Even though organizational knowledge processes and organizational development processes have significant influence on project performance, current construction management practice does not explicitly consider organizational issues. Optimism bias regarding organizational aspects could lead to negative outcomes in large-scale construction projects where close coordination and communication among project participants is required to achieve project goals. On this premise, this paper introduces complex system perspective with which we can investigate project organizations from a realistic standpoint. Also, agent-based modeling and simulation method is suggested as a method to consider organizational issues in project management, and an example of agent-based simulation of project organizations is presented.
Developing Simulation Model for Estimating the Productivity of Gas Pressure Welding Operation
Son, Chang-Baek ; Kim, Yong-Woo ; Lee, Dong-Eun ;
Journal of the Architectural Institute of Korea Structure & Construction, volume 29, issue 4, 2013, Pages 109~116
Construction Standard Productivity Manual Unit system(CSPM) has been used for estimating the contract amount of construction projects in public sector. CSPM has been annually either revised and/or updated with high socio-economic cost. This study identifies simulation modeling and analysis is an effective tool to complement the issues involved in revising, updating, and enacting CSPM. This paper presents how Web-CYCLONE which is a discrete event simulation systems can be effectively used for this purpose. This study verifies that the enhanced simulation system can effectively assist enacting and/or revising CSPM using a new version of Web-CYCLONE that implements new modules specialized to CSPM revision. A test case with gas pressure welding operation is performed to verify the usability of the add-in modules.