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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Earthquake Engineering Society of Korea
Journal Basic Information
Journal DOI :
Earthquake Engineering Society of Korea
Editor in Chief :
Volume & Issues
Volume 15, Issue 6 - Dec 2011
Volume 15, Issue 5 - Oct 2011
Volume 15, Issue 4 - Aug 2011
Volume 15, Issue 3 - Jun 2011
Volume 15, Issue 2 - Apr 2011
Volume 15, Issue 1 - Feb 2011
Selecting the target year
Evaluation of The Nonlinear Seismic Behavior of a Biaxial Hollow Slab
Park, Yong-Koo ; Kim, Hyun-Su ; Ko, Hyun ; Park, Hyun-Jae ; Lee, Dong-Guen ;
Journal of the Earthquake Engineering Society of Korea, volume 15, issue 1, 2011, Pages 1~10
DOI : 10.5000/EESK.2011.15.1.001
Recently, there has been an increased interest in the noise isolation capacity of floor slabs, and thus an increase of slab thickness is required. In addition, long span floor systems are frequently used for efficient space use of building structures. In order to satisfy these requirements, a biaxial hollow slab system has been developed. To verify the structural capacity of a biaxial hollow slab system, safety verification against earthquake loads is essential. Therefore, the seismic behavior of a biaxial hollow slab system has been investigated using material nonlinear time history analyses. For efficient time history analyses, the equivalent plate element model previously proposed was used and the seismic capacity of the example structure having a biaxial hollow slab system has been evaluated using the nonlinear finite element model developed by the equivalent frame method. Based on analytical results, it has been shown that the seismic capacity of a biaxial hollow slab system is not worse than that of a flat plate slab system with the same thickness.
Seismic Design of Low-rise Steel Moment Frames in Korea
Kim, Tae-Wan ;
Journal of the Earthquake Engineering Society of Korea, volume 15, issue 1, 2011, Pages 11~18
DOI : 10.5000/EESK.2011.15.1.011
The connection type of steel moment frames in the country is mostly fabricated in factories so that it is fairly ductile due to good quality control. Based on references, the domestic connection satisfies the performance limit for steel intermediate moment frames specified by the AISC. However, the current KBC2009 building code specifies various systems for steel moment frames such as ordinary, intermediate, and special moment frames while the former KBC2005 only did so for a ductile moment frame. This induces the necessity of investigating which system is appropriate in the country when the domestic connection is applied. Therefore, this study was aimed at finding a proper design method by comparing the ductile moment frame in KBC2005 and the intermediate moment frames in KBC2009. The results showed that seismic design parameters for the ductile moment frames can be reasonable for satisfying the performance objective.
Structural Performance Assessment of Damaged Reinforced Concrete Structures
Kim, Tae-Hoon ; Kim, Young-Jin ;
Journal of the Earthquake Engineering Society of Korea, volume 15, issue 1, 2011, Pages 19~28
DOI : 10.5000/EESK.2011.15.1.019
In this study, nonlinear finite element analysis procedures are presented for the structural performance assessment of damaged reinforced concrete structures. A computer program, named RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology), for the analysis of reinforced concrete structures was used. Material nonlinearity is taken into account by comprising tensile, compressive and shear models of cracked concrete and a model of reinforcing steel. This paper defines a damage index based on the predicted inelastic behavior of reinforced concrete structures. The proposed numerical method for the structural performance of damaged reinforced concrete structures is verified by comparison with reliable experimental results.
Fundamental Period Formulas for Concrete Shear Wall Buildings
Kang, Sung-Hun ; Hong, Sung-Gul ; Park, Hong-Gun ; Chung, Lan ;
Journal of the Earthquake Engineering Society of Korea, volume 15, issue 1, 2011, Pages 29~38
DOI : 10.5000/EESK.2011.15.1.029
A new formula is proposed for the fundamental period of high-rise residential concrete shear-wall (SW) buildings. This formula, developed on the basis of dynamics with the recorded fundamental period during the recent earthquakes, can consider the wall stiffness with respect to any direction. To verify the proposed formula, the fundamental period of 10 sample buildings, measured during construction, is compared with the predicted fundamental period. Furthermore, the empirical formulas presented in the building codes KBC 2009 and ASCE 7-10, are also compared with the proposed formula to show a rationality of the proposed formula. The comparison results show that the proposed formula not only can rationally consider the characteristics of each shear-wall, but that it also accurately predicts the fundamental period of the buildings.
Study on the Response Modification Factor for a Lightweight Steel Panel-Modular Structure Designed as a Dual Frame System
Lee, Eo-Jin ; Hong, Sung-Gul ;
Journal of the Earthquake Engineering Society of Korea, volume 15, issue 1, 2011, Pages 39~48
DOI : 10.5000/EESK.2011.15.1.039
In this present study, a response modification factor for a lightweight steel panel-modular system which is not clarified in a current building code was proposed. As a component of the response modification factor, an over-strength factor and a ductility factor were drawn from the nonlinear static analysis curves of the systems modeled on the basis of the performance tests. The final response modification factor was then computed by modifying the previous response modification factor with a MDOF (Multi-Degree-Of-Freedom) base shear modification factor considering the MDOF dynamic behaviors. As a result of computation for the structures designed as a dual frame system, ranging from 2-story to 5-story, the value of 4 was estimated as a final response modification factor for a seismic design, considering the value of 5 as an upper limit of the number of stories.
Experimental Investigation of The Lateral Retrofitting Effect of FRP Sheet and Buckling-restrained Braces for Beam-Column Joints
Byon, Eun-Hyuk ; Kim, Min-Sook ; Lee, Young-Hak ; Kim, Hee-Cheul ;
Journal of the Earthquake Engineering Society of Korea, volume 15, issue 1, 2011, Pages 49~56
DOI : 10.5000/EESK.2011.15.1.049
The strengthening effect of CFRP sheet and AFRP sheet with buckling-restrained brace for Beam-Column joints under constant axial and cyclic lateral loading is evaluated experimentally in this paper. Six test specimens were constructed. The main test parameters included the FRP Sheet and Buckling-restrained braces. The results of the tests were analyzed by focusing on their mode of failure, maximum load, ductility indexes, and energy dissipation capacity. Test results indicated that CFRP Sheet with the buckling-restrained brace system significantly increased the strength and stiffness of the specimen and that it was the most adequate retrofitting method.
Development of Ground Motion Response Spectrum for Seismic Risk Assessment of Low and Intermediate Level Radioactive Waste Repositories
Kim, Min-Kyu ; Rhee, Hyun-Me ; Lee, Kyoung-Mi ;
Journal of the Earthquake Engineering Society of Korea, volume 15, issue 1, 2011, Pages 57~63
DOI : 10.5000/EESK.2011.15.1.057
In this study, a ground motion response spectrum for the seismic risk assessment of low and intermediate level radioactive waste repositories was developed. For the development of the ground motion response spectrum, a probabilistic seismic hazard analysis (PSHA) was performed. Through the performance of a PSHA, a seismic hazard curve which was based on a seismic bed rock was developed. A uniform hazard spectrum was determined by using a developed seismic hazard curve. Artificial seismic motions were developed based on the uniform hazard spectrum. A seismic response analysis was performed on the developed artificial seismic motion. Finally, an evaluation response spectrum for the seismic risk assessment analysis of low and intermediate level radioactive waste repositories was developed.