Earticle

초록

영어

This study proposes a novel seismic strengthening system of reinforced concrete (R/C) frame infilled using Precast Modular Reinforced Blocks (PMRB) to improve the drawbacks of conventional infilling techniques. The retrofitting system for R/C frame infilled with PMRB maximizes the advantages of factory-produced modular reinforced blocks, significantly improving the constructability and integrity of the connections between the existing frame and the reinforced blocks. This method does not significantly increase the weight of the structure due to seismic retrofitting and is a typical frame-infilling method to increase lateral-load capacity. A pseudo-dynamic test was accomplished using a full-scale two-story frame specimen based on an existing R/C building with non-seismic details to verify the strengthening effects of the PMRB frame-infilling system such as restoring force characteristics, strength increasing effects, and seismic response control capabilities. Under a design basis earthquake with a seismic intensity of 200 cm/s², the unreinforced R/C frame experienced shear failure, while the PMRB-reinforced frame was expected to sustain only minor earthquake damage. Even when considering a maximum considered earthquake of 300 cm/s² and a large-scale earthquake of 400 cm/s², only small or less damage was anticipated. Therefore, the seismic reinforcement effectiveness of the newly developed PMRB frame-infilling system has been verified in this study.

목차

Abstract
1. 서론
1.1 연구배경 및 목적
1.2 연구범위 및 방법
2. PMRB 골조끼움형 내진보강법 제안
2.1 PMRB 내진보강공법의 개요
2.2 PMRB 내진보강공법의 시공순서
3. 유사동적실험 개요
3.1 유사동적실험 시스템 및 방법
3.2 실험체 제작 및 변수
4. 유사동적 실험의 결과 및 분석
4.1 균열 및 파괴형상
4.2 최대 지진응답 하중 및 변위
4.3 지진응답 하중-변위관계 및 변위-시간이력 결과의 비교 및 분석
5. 결론
REFERENCES

저자

• 이은경 [ Lee Eun-Kyung | 한양대학교 대학원 스마트시티공학과 박사과정 ]
• 이원훈 [ Lee Won-Hun | 한양대학교 대학원 건축시스템공학과 박사과정 ]
• 이강석 [ Lee, Kang-Seok | 한양대학교 에리카 건축학부&스마트시티공학과 교수, 공학박사 ] Corresponding Author

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