Earticle

초록

영어

A new seismic retrofit technique by externally attaching steel reinforced concrete frames was developed for strengthening medium-to-low-rise reinforced concrete (RC) buildings. Two types of bolting and welding methods for connecting between existing RC frame and external strengthening element were prepared in this study. The connections can be technically and practically selected by construction condition. The retrofit method developed in this research is capable of carrying out the seismic retrofitting construction while residents can live inside structures. The method is one of the strength design approach by retrofit which can easily increase the ultimate lateral-load capacity of RC buildings controlled by shear. The pseudo-dynamic test, designed using an existing school building in Korea, was carried out in order to verify the seismic retrofitting effects and earthquake response behavior of the proposed method in terms of the maximum load carrying capacity and response displacement. Test results revealed that the proposed external strengthening method installed in RC frame enhanced conspicuously the strength and displacement capacities, and the method can resist markedly under the large scaled earthquake intensity level.

목차

Abstract
 1. 서론
 2. ESRCF 내진보강공법의 개요
 3. 실험체 계획 및 상세
  3.1 사용재료의 특성
  3.2 실험체 제작 및 변수
  3.3 ESRCF 접합부의 설계
 4. 유사동적실험의 개요 및 실험방법
  4.1 유사동적실험의 개요
  4.2 유사동적실험 시스템 및 방법
 5. 실험 결과 및 분석
  5.1 균열 및 파괴양상
  5.2 최대 지진응답하중 및 변위
  5.3 지진응답하중-변위관계 및 최대 지진응답 결과의 상호 비교·분석
 6. 결론
 참고문헌

저자

• 이강석 [ Lee, Kang-Seok | 전남대 건축학부 교수, 공학박사 ] Corresponding Author

참고문헌