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자료유형
학술저널
저자정보
저널정보
대한건축학회 ARCHITECTURAL RESEARCH ARCHITECTURAL RESEARCH Vol.6 No.2
발행연도
2004.12
수록면
33 - 40 (8page)

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초록· 키워드

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In this study, the strut-and-tie model for the coupling beam with plastic hinges is presented. The ultimate rotation of the coupling beams is obtained by using the geometric relationship between walls and coupling beams at ultimate state. Assuming the required plastic deformation at both ends of the coupling beam, the strut-and-tie model is constructed. To design earthquake-resistant shear-dominated RC coupling beams, it is important to consider shear strength deterioration with required ductility. This research proposes the method of estimating shear strength of the reinforced concrete coupling beams considering the strength degradation of the diagonally compressed concrete due to the strain in plastic hinges. The proposed method determines the plastic strain from required plastic deformations based on the elastic deformation of coupling beams and ultimate wall deformations. The estimated horizontal strain of beam is then used in calculating the strength of the diagonal strut of arch action with compatibility conditions. The deterioration of shear strength of the coupling beam depends on the decrease of arch action due to plastic deformations.

목차

Abstract

1. INTRODUCTION

2. RESEACH SINGNIFICANCE

3. COUPLED WALL SYSTEMS

4. STRUT AND TIE MODEL

5. REQUIRED DEFORMATION

6. ESTIMATION OF ULTIMATE SHEAR STRENGTH

7. VERIFICATION

8. CONCLUSIONS

ACKNOWLEDGEMENT

REFERENCES

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