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Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)

  • Bimonthly
  • /
  • 1226-525X(pISSN)
  • /
  • 2234-1099(eISSN)

Domain

  • Earth Science(Earth/Atmosphere/Marine/Astronomy) ＞ Geophysics

Aim & Scope

The Journal of the Earthquake Engineering Society of Korea (EESK J Earthquake Eng) is a journal of peer-reviewed papers on the latest advances in analysis, experiment and practice dedicated to earthquakes in the fields of seismology and earthquake engineering. EESK J Earthquake Eng is the official journal of the Earthquake Engineering Society of Korea (EESK) founded in 1997. The aim of this journal is to present research and developments on the latest technologies related to earthquake engineering in all aspects. The journal will provide a powerful repository of scientific, technical and practical information for the research and professional community encompassing all disciplines of the earthquake engineering and seismology fields. The journal publishes 6 issues per year and follows an open-access policy. EESK J Earthquake Eng (ISSN: 1226-525X) is indexed in the Korea Citation Index (KCI). Papers considered for publication are original and high-quality works on analytical, experimental, design and field studies that form: - a valuable contribution to the theory or practice of earthquake engineering; - a state-of-the-art work on a topic related to earthquake; - a case study on a significant earthquake-related problem.

https://acoms1.kisti.re.kr/eesk/ad01/index.jsp?publisher_cd=eesk&lang=kor KSCI KCI

Volume 18 Issue 1

  1. Kim, Tae-Hoon;Lee, Jae-Hoon;Shin, Hyun-Mock 1
    https://doi.org/10.5000/EESK.2014.18.1.001 PDF KSCI
    The purpose of this study was to investigate the performance of hollow reinforced concrete bridge column systems with reinforcement details for material quantity reduction. The proposed reinforcement details have economic feasibility and rationality and make construction periods shorter. A model of hollow reinforced concrete bridge columns was tested under a constant axial load and a quasi-static cyclically reversed horizontal load. As a result, proposed reinforcement details for material quantity reduction were equal to existing reinforcement details in terms of required performance. The companion paper presents the experimental and analytical study for the performance assessment of hollow reinforced concrete bridge column systems with reinforcement details for material quantity reduction.
  2. Kim, Tae-Hoon;Kim, Ho-Young;Lee, Jae-Hoon;Shin, Hyun-Mock 9
    https://doi.org/10.5000/EESK.2014.18.1.009 PDF KSCI
    The purpose of this study is to investigate the seismic behavior of hollow reinforced concrete bridge column systems with reinforcement details for material quantity reduction and to provide the details and reference data. Five hollow reinforced concrete bridge columns were tested under a constant axial load and a cyclically reversed horizontal load. The accuracy and objectivity of the assessment process can be enhanced by using a sophisticated nonlinear finite element analysis program. The adopted numerical method gives a realistic prediction of seismic performance throughout the loading cycles for several the investigated test specimens. This study documents the testing of hollow reinforced concrete bridge column systems with reinforcement details for material quantity reduction and presents conclusions based on the experimental and analytical findings.
  3. Shin, Yooseong;Song, Jong-Keol 19
    https://doi.org/10.5000/EESK.2014.18.1.019 PDF KSCI
    The seismic evaluation of electric power facilities in the switchyard of nuclear power plants is currently insufficient. In order to evaluate the seismic performance of lightning arrester subjected to four types of earthquake (near- and far-fault earthquakes, NEHRP Site Class A&B and D earthquakes), seismic fragility analysis using maximum likelihood estimation is performed considering various damage states. The comparison of the seismic fragility curves for three main parts of lightning arrester that are the busing, anchor and steel frame, reveals that the failure of lightning arrester is governed by the bushing damage mode such as porcelain cracking.
  4. Yun, Kwan Hee 29
    https://doi.org/10.5000/EESK.2014.18.1.029 PDF KSCI
    In industrial facilities sites, the conventional method determining the earthquake magnitude (M) using earthquake ground-motion records is generally not applicable due to the poor quality of data. Therefore, a new methodology is proposed for determining the earthquake magnitude in real-time based on the amplitude measures of the ground-motion acceleration mostly from S-wave packets with the higher signal-to-ratios, given the Vs30 of the site. The amplitude measures include the bracketed cumulative parameters and peak ground acceleration (As). The cumulative parameter is either CAV (Cumulative Absolute Velocity) with 100 SPS (sampling per second) or BSPGA (Bracketed Summation of the PGAs) with 1 SPS. The arithmetic equations to determine the earthquake magnitude are derived from the CAV(BSPGA)-As-M relations. For the application to broad ranges of earthquake magnitude and distance, the multiple relations of CAV(BSPGA)-As-M are derived based on worldwide earthquake records and successfully used to determine the earthquake magnitude with a standard deviation of ${\pm}0.6M$.
  5. Han, A Rum;Kim, Taewan;Yu, Eunjong 37
    https://doi.org/10.5000/EESK.2014.18.1.037 PDF KSCI
    In current seismic design code, steel moment frames are classified into ordinary, intermediate, and special moment frames. In the case of special moment frames which have large R-factor, economic design is possible by reducing the design lateral force. However, there is difficulty for practical application due to constraints such as strong column-weak beam requirement. This study evaluated if steel intermediate moment frame could maintain enough seismic capacity when the R-factor is increased from 4.5 to 6. As for the analytical models, steel moment frames of 3 and 5 stories were categorized into four performance groups according to seismic design category. Seismic performances of the frames were evaluated through the procedure based on FEMA P695. FEMA P695 utilizes nonlinear static analysis(pushover analysis) and nonlinear dynamic analysis(incremental dynamic analysis, IDA). In order to reflect the characteristics of Korean steel moment frames on the analytical model, the beam-column connection was modeled as weak panel zone where the collapse of panel zone was indirectly considered by checking its ultimate rotational angle after an analysis is done. The analysis result showed that the performance criteria required by FEMA P695 was satisfied when R-factor increased in all the soil conditions except $S_E$.
  6. Choi, Eunsoo;Kim, Byeong Hwa;Shin, Jae Kwan;Lee, Do Hyung 45
    https://doi.org/10.5000/EESK.2014.18.1.045 PDF KSCI
    This paper investigates experimentally the confinement effect on concrete. For this purpose, outside lateral reinforcement members made of stainless steel and GFRP were employed. Then, uniaxial compressive tests on concrete cylinders incorporating the members were conducted. A total of 30 cylinder specimens, specifically, 6 unconfined specimens, 12 specimens confined by stainless steel and 12 specimens confined by GFRP, were fabricated. The failure patterns of both unconfined and confined specimens were assessed and discussed based on experimental results. The results proved that the maximum stress and corresponding strains of the cylinders confined using the proposed hoops are increased in comparison with those of the unconfined. This supports that the current work can be used for retrofitting concrete members and structures and thus may lead to increased stability of such structures.
  7. Kim, Yong Joon;Han, Arum;Kim, Seung Nam;Yu, Eunjong 53
    https://doi.org/10.5000/EESK.2014.18.1.053 PDF KSCI
    RC shear wall sections which have irregular shapes such as T, ㄱ, ㄷ sections are typically used in low-rise buildings in Korea. Pushover analysis of building containing such members costs a lot of computation time and needs professional knowledge since it requires complicated modeling and, sometimes, fails to converge. In this study, a method using an equivalent column element for the shear wall is proposed. The equivalent column element consists of an elastic column, an inelastic rotational spring, and rigid beams. The inelastic properties of the rotational spring represent the nonlinear behavior of the shearwall and are obtained from the section analysis results and moment distribution for the member. The use of an axial force to compensate the difference in the axial deformation between the equivalent column element and the actual shear wall is also proposed. The proposed method is applied for the pushover analysis of a 5- story shear wall-frame building and the results are compared with ones using the fiber elements. The comparison shows that the inelastic behavior at the same drift was comparable. However, the performance points estimated using the pushover curves showed some deviations, which seem to be caused by the differences of estimated yield point and damping ratios.
  8. Park, Ho Young;Kang, Cheol Kyu;Choi, Byong Jeong 63
    https://doi.org/10.5000/EESK.2014.18.1.063 PDF KSCI
    This study presents an experimental study of the structural behavior for steel plate-concrete column-to-steel girder connections. Experiments were carried out to investigate the moment-rotation characteristics, failure behavior and ultimate moment capacity of these connections. The results of this experimental study involving three welded moment-resisting connections subjected to cyclic loading are presented. The specimens were fabricated at full scale to evaluate their hysteretic behavior. A description of the test specimens, the details of the joint, the test system and the testing methods are described. The test results showed that the structural behavior of these composite connections was influenced by the connection details.