DOI QR코드

DOI QR Code

Seismic Performance of RC Frame System Retrofitted with TS Seismic Strengthening Method (Part 1:Analytical Study)

TS 제진공법으로 내진보강된 철근콘크리트 골조의 내진성능(Part 1:해석적 연구)

  • Received : 2018.01.10
  • Accepted : 2018.01.24
  • Published : 2018.03.01

Abstract

In this study, a cyclic loading test was carried out for a reinforced concrete frame installed a TS(tension-spring) damper for the purpose of verifying the seismic strengthening effect of the TS seismic reinforcing method. The test specimens are four specimens of non - reinforced frame and three reinforced frame specimens. Experimental parameters are Shape of damper and construction method of damper. As a result, the construction method of inserting type inside window was twice as much in terms of strength and stiffness, and the method of externally attached type showed a performance improvement of about 2 times in terms of energy dissipation. From these results, it can be confirmed that the TS seismic reinforcing method is a superior method for field application and seismic strengthening.

본 연구에서는 TS 내진보강공법의 내진보강 효과를 검증 할 목적으로 TS 댐퍼(Tension Spring-Damper)를 설치한 철근콘크리트 골조를 대상으로 한 반복 주기하중 재하 실험을 수행 하였다. 실험체는 기준 실험체인 무보강 골조 실험체와 3개의 보강 골조 실험체의 총 4개이며, 실험의 변수는 댐퍼 설치 여부, 댐퍼의 형상 및 시공방법이다. 그 결과 창호 내부 삽입 형식의 시공방법이 강도와 강성의 측면에서 2배가량, 외부 부착형식의 시공 방법이 에너지 소산의 측면에서 2배가량의 성능 향상을 나타내어 TS 내진보강공법이 현장 적용성과 내진보강 효과가 우수한 공법임을 확인 할 수 있었다.

Keywords

References

  1. Jeong, S. J. (2015), A Study on Hysteresis Characteristics and Seismic Performance of Buckling Resistance Steel Damper, Chocun University, Gwangju, Korea.
  2. Korean Agency for Technology and Standards (2014), Standard Test Method for Making and Curing Concrete Specimens, Korean Agency for Technology and Standards.
  3. Korean Agency for Technology and Standards (2017), Test Pieces for Tensile Test for Metallic Materials, Korean Agency for Technology and Standards.
  4. Lee, K. S., and Kim, H. J. (2012), Guideline on Seismic Evaluation and Upgrading of School Buildings, KORMARC, Korean Institute of Educational Facilities, 19(2), 22-25.
  5. Oh, S. H. (2001), The Principle of Earthquake Control System of Steel Framed Building and Application Method in Korea, Journal of Korean Society of Steel Construction, Korean Society of Steel Construction, 47(2), 96-105.