Recent decades, maintenance and reconstruction have been paid attention to old buildings. Especially, it has been recognized that seismic retrofit measures are necessary for non-reinforced masonry buildings which are used for prevailing building constructions. However, such applications can be limited due to its excessive costs, long-period, and inherent difficulty in securing construction spaces. For this reason, different reinforcement methods have been proposed by previous researchers in the economic manner. This study carried out an adhesive retrofit material upgrading low workability and excessive costs of existing reinforcement methods and, in turn, verified the level of seismic reinforcement throughout experimental studies. In order for the objectives, masonry walls with an aspect ratio of 1.0 were designed and manufactured. Also, effective parameters which are affected by openings, adhesive material types, the number of reinforcement layers, and lateral load levels were established. Experimental results showed that MW specimens without openings were collapsed for low-seismic resistances resulting from rocking failure modes, while strength and displacement capacities were improved for reinforced openings. Also, R-MWO-3F specimens with opening which was enhanced for three layers of stiffener showed displacement, ductility capacities, and energy dissipating capacities in the stable manner, even satisfying the collapse prevention level proposed in the current seismic codes.

1. 서 론
 2. 접착형 보강재 공법개요
  2.1 조적조 성능기준
  2.2 접착형보강재 개념
  2.3 접착형 보강재 시공방법
  2.4 접착형 보강재 재료실험
 3. 실험개요
  3.1 실험체 형태 및 가력방법
  3.2 실험체 개요
 4. 실험결과
  4.1 파괴양상 및 하중변위 분석
  4.2 최대내력 및 변위
  4.3 잔류변형
  4.4 에너지소산능력
  4.5 조적벽체의 내진성능수준
 5. 결 론
 REFERENCES

• 박병태(서울시립대학교 건축공학과 박사과정) | Park Byung-Tae
• 권기혁(서울시립대학교 건축공학과 교수) | Kwon Ki-Hyuk Corresponding author