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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.3
- 수록면
- 41 - 48 (8page)
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초록· 키워드
오류제보하기
Early investigations focused mainly on manipulating the confinement effect to develop a reinforced concrete column with lateral hoops. Based on this legacy model, Li’s model incorporated the additional confinement effect of a steel jacket. However, recent experiments on plain concrete cylinders with steel jackets revealed relatively large discrepancies in the estimates of strength enhancement and the post-peak behavior. Here, we describe a modified constitutive law for confined concrete with an unbonded external steel jacket in terms of three regions for the loading stage. We used a two-phase heterogeneous concrete model to simulate the uniaxial compression test of a 150 mm × 300 mm concrete cylinder with three thicknesses of steel jackets: 1.0 mm, 1.5 mm, and 2.0 mm. The proposed constitutive model was verified by a series of finite element analyses using a finite element program. The damaged plasticity model and extended Drucker-Prager model were applied and compared in terms of the level of pressure sensitivity for confinement in 3D. The proposed model yielded results that were in close agreement with the experimental results
목차
Abstract
1. INTRODUCTION
2. COMPUTER MODELING FOR A HETEROGENEOUS CONCRETE CYLINDER
3. UNCONFINED AND CONDINED MODEL
4. MODIFIED CONSTITUTIVE MODEL FOR STEEL JACKETING CONCRETE
5. CONCLUSIONS
REFERENCES
참고문헌 (20)
참고문헌 신청
1. [기타자료] - ABAQUS / 2010 / Abaqus theory manual 6.10-1 / Simulia
2. [학술지(정기간행물)] - Choi, E. / 2009 / A new steel jacketing method for RC columns / Magazine of Concrete Research 61 (10) : 787 ~ 796
3. [학술지(정기간행물)] - Choi, E. / 2010 / Behavior of reinforced concrete column confined by new steel jacketing method / ACI Structural Journal 107 (6) : 654 ~ 656
4. [학술지(정기간행물)] - Choi. E / 2011 / Seismic retrofit of plain concrete piers of railroad bridges using composite of FRP-steel plates / Composite: Part-B 42 (5) : 1097 ~ 1107
5. [학술지(정기간행물)] - Drucker, D.C. / 1952 / Soil mechanics and plastic analysis for limit design / Quarterly of Applied Mathematics 10 (2) : 157 ~ 165
2. [학술지(정기간행물)] - Choi, E. / 2009 / A new steel jacketing method for RC columns / Magazine of Concrete Research 61 (10) : 787 ~ 796
3. [학술지(정기간행물)] - Choi, E. / 2010 / Behavior of reinforced concrete column confined by new steel jacketing method / ACI Structural Journal 107 (6) : 654 ~ 656
4. [학술지(정기간행물)] - Choi. E / 2011 / Seismic retrofit of plain concrete piers of railroad bridges using composite of FRP-steel plates / Composite: Part-B 42 (5) : 1097 ~ 1107
5. [학술지(정기간행물)] - Drucker, D.C. / 1952 / Soil mechanics and plastic analysis for limit design / Quarterly of Applied Mathematics 10 (2) : 157 ~ 165
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