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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Association for Spatial Structures
Journal Basic Information
Journal DOI :
Korean Association for Spatial Structures
Editor in Chief :
Volume & Issues
Volume 15, Issue 4 - Dec 2015
Volume 15, Issue 3 - Sep 2015
Volume 15, Issue 2 - Jun 2015
Volume 15, Issue 1 - Mar 2015
Selecting the target year
A Study on Stability of Single-layer Space Frame Structure for Energy Core of Incheon Airport Second Terminal
Jung, Hwan-Mok ;
Journal of the Korean Association for Spatial Structures, volume 15, issue 4, 2015, Pages 49~56
DOI : 10.9712/KASS.2015.15.4.049
The roof grid of single-layer space frame structure, for Energy Core of Incheon Airport Second Terminal, is very simple and aesthetic, but it is apt to buckle under external force because of mild curvature and complex shape. The object of this study is to estimate the stability of single-layer space frame structures for Energy Core of Incheon Airport Second Terminal with the analytical conditions of structural design. The results show that the buckling load of model(pin-pin, uniform load, rigid joint), that is, the most similar model to the analytical conditions of structural design. was
A Study on Buckling Characteristics of Arch-type Vinyl House Structures according to Analytical Precision
Yoon, Seok-Ho ;
Journal of the Korean Association for Spatial Structures, volume 15, issue 4, 2015, Pages 57~64
DOI : 10.9712/KASS.2015.15.4.057
The construction of vinyl greenhouses are increasing because of economic feasibility, construction period, and construction regulations. However, the vinyl greenhouses are apt to collapse by snow load since they have a small member as a temporary structure. The 3 types of buckling such as global, member and nodal buckling could be occurred to arched structures according to characteristics of cross section. To examine the member buckling, the precision of analysis need to be enhanced. In that case, we can examine the characteristics of the those buckling. The purposes of this study are to verify buckling characteristics of structures using the method of high precision analysis with a center node of member. The results of high precision analysis bring member buckling, and in the analysis method having the center node of member, the value of strength is getting lower than a previous study.
Structural Performance Evaluation of Bolt Connection for Half-sphere Joint between PHC Pile and Steel Column
Oh, Jintak ; Kim, Sang-Bong ; Kim, Young-Sik ; Ju, Young K. ;
Journal of the Korean Association for Spatial Structures, volume 15, issue 4, 2015, Pages 65~72
DOI : 10.9712/KASS.2015.15.4.065
To overcome the weakness of spread foundation in large space structure, the research of precast pile for replace spread foundation have been conducted. The new type of joint between PHC pile and steel column is named HAT Joint(Hollow hAlf-sphere cast-sTeel Joint). It connected PHC Pile by bolt that verification of bolt connection should be accomplished. In this paper, pull-out test and flexural performance for HAT Joint to verifying the bolt connection is explained. As a result, the pull-out and flexural capacities of bolt were checked to use in real structure. Furthermore, the equation of pull-out strength was proposed.
Experimental Study on the Structural Behaviour of Rotary Friction Damper
Kim, Do-Hyun ; Kim, Ji-Young ; Kim, Myeong-Han ;
Journal of the Korean Association for Spatial Structures, volume 15, issue 4, 2015, Pages 73~80
DOI : 10.9712/KASS.2015.15.4.073
The new rotary friction damper was developed using several two-nodal rotary frictional components with different clamping forces. Because of these components, the rotary friction damper can be activated by building movements due to lateral forces such as a wind and earthquake. In this paper, various dependency tests such as displacement amplitude, forcing frequency and long term cyclic loading were carried out to evaluate on the structural performance and the multi-slip mechanism of the new damper. Test results show that the multi-slip mechanism is verified and friction coefficients are dependent on displacement amplitute and forcing frequency except long term cyclic loading.
Vibration Control Performance Evaluation of Semi-active Outrigger Damper System
Kim, Hyun-Su ; Kang, Joo-Won ;
Journal of the Korean Association for Spatial Structures, volume 15, issue 4, 2015, Pages 81~89
DOI : 10.9712/KASS.2015.15.4.081
Damped outrigger systems have been proposed as a novel energy dissipation system to protect tall buildings from severe earthquakes and strong wind loads. In this study, semi-active damping devices such as magnetorheological (MR) dampers instead of passive dampers are installed vertically between the outrigger and perimeter columns to achieve large and adaptable energy dissipation. Control performance of semi-active outrigger damper system mainly depends on the control algorithm. Fuzzy logic control algorithm was used to generate command voltage sent to MR damper. Genetic algorithm was used to optimize the fuzzy logic controller. An artificial earthquake load was generated for numerical simulation. A simplified numerical model of damped outrigger system was developed. Based on numerical analyses, it has been shown that the semi-active damped outrigger system can effectively reduce both displacement and acceleration responses of the tall building in comparison with a passive outrigger damper system.
An Seismic Performance Study according to Reinforcement Method of Aramid Rods and SRF of Damaged RC Column
Oh, HaeCheol ; Lee, Kihak ;
Journal of the Korean Association for Spatial Structures, volume 15, issue 4, 2015, Pages 91~98
DOI : 10.9712/KASS.2015.15.4.091
This paper has proposed a reinforcing method for damaged RC columns with SRF sheets and Aramid rods. In order to verify the effectiveness and performance, two original columns and two reinforced columns with SRF sheets and Aramid rods were developed and tested under lateral cyclic displacement and a constant axial load. The test showed that the improvement of energy dissipation capacity was increased in terms of strength and ductility. In addition, an analytical modeling of the standard specimens was proposed using Response-2000 and ZeusNL program. The results of analytical and experimental studies for two standard columns were compared in terms of loading-displacement curve and energy dissipation capacity based on the nonlinear static analysis.
Dynamic Characterization of Large-scale Structures through Mobile-phone Application
Jung, Young-Seok ; Yoon, Sung-Won ;
Journal of the Korean Association for Spatial Structures, volume 15, issue 4, 2015, Pages 99~105
DOI : 10.9712/KASS.2015.15.4.099
The serviceability design of the high-rise building is affected by the wind response vibration such as the acceleration, at this time it is important to calculate the natural frequency correctly. Since the suggestion equation of the natural frequency being used in the design phase is not the regression equation obtained from the vibration measurement of the high-rise building, the verification to use for the serviceability design of the high-rise building is necessary. This thesis conducted an ambient vibration measuring on the high-rise building through the mobile-phone application to calculate the natural frequency and suggested a natural frequency approximate expression following the building's height, and compared with the domestic/foreign standard and the result of the eigen-value analysis.
Natural Vibration Period of Small-scaled Arch Structure by Shaking Table Test
Kim, Gee-Cheol ; Kang, Joo-Won ;
Journal of the Korean Association for Spatial Structures, volume 15, issue 4, 2015, Pages 107~114
DOI : 10.9712/KASS.2015.15.4.107
Large spatial structures can not easily predict the dynamic behavior due to the lack of construction and design practices. The spatial structures are generally analyzed through the numerical simulation and experimental test in order to investigate the seismic response of large spatial structures. In the case of analysis for seismic response of large spatial structure, the many studies by the numerical analysis was carried out, researches by the shaking table test are very rare. In this study, a shaking table test of a small-scale arch structure was conducted and the dynamic characteristics of arch structure are analyzed. And the dynamic characteristics of arch structures are investigated according to the various column cross-section and length. It is found that the natural vibration periods of the small-scaled arch structure that have large column stiffness are very similar to the natural vibration period of the non-column arch structure. And in case of arch structure with large column stiffness, primary natural frequency period by numerical analysis is very similar to the primary natural frequency period of by shaking table test. These are because the dynamic characteristics of the roof structure are affected by the column stiffness of the spatial structure.