Journal of the Korean Society of Hazard Mitigation (한국방재학회 논문집)

Korean Society of Hazard Mitigation (한국방재학회)
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Characteristics of Vertical Ground Motion and Its Effect on the Response of 3-Story RC Building

수직지반운동의 특성과 3층 RC건물의 응답에 미치는 영향

  • Kim, Myeong-Han (Department of Architectural Engineering, Daejin University) ;
  • Kim, Sung Jig (Department of Architectural Engineering, Keimyung University)
  • Received : 2013.03.28
  • Accepted : 2013.04.02
  • Published : 2013.04.30
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Abstract

The paper presents the characteristics of vertical ground motion and its effect on 3-story RC building. The characteristics of vertical ground motion are discussed including frequency content, vertical-to-horizontal peak ground acceleration (V/H) ratio, and time intervals between the arrival of the vertical and horizontal peaks. The vertical ground motion effects on the RC structure are also investigated considering V/H ratio. It is observed that the inclusion of the vertical component of ground motion has an important effect on the response of the selected RC building. It is therefore concluded that vertical motion should be included in analysis for assessment and design in the near fault area where V/H is likely to be high.

이 논문은 수직지반운동의 특성과 3층 RC건물의 응답에 수직지반운동이 미치는 영향을 평가한 것이다. 수직지반운동의 주파수 특성, 수평 수직지반운동의 최대지반가속도 비율 (V/H), 수평 수직지반운동의 최대지반가속도 도달시간차를 분석하고, 다양한 V/H에 따라서 수직지반운동이 건물의 응답에 미치는 영향을 평가하였다. 해석결과 수직지반운동을 포함하는 것이 이 연구에서 선정한 구조물의 응답에 중대한 영향을 미치고 있음을 알 수 있었다. 따라서 V/H가 높을 가능성이 있는 단층인접지역에서는 신뢰성 있는 구조해석 및 설계를 위하여 수직지반운동을 포함한 구조해석이 필요하다.

Keywords

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