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지진하중을 받는 철근콘크리트 모멘트골조의 모멘트재분배와 소성변형 : Moment Redistribution and Plastic Deformation for Reinforced Concrete Moment-Resisting Frame Subjected to Earthquake Load

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Authors

박홍근; 엄태성

Issue Date
2009-04
Publisher
한국콘크리트학회 = Korean Concrete Institute
Citation
한국콘크리트학회 논문집 제21권 제2호, 2009, pp. 217-226
Keywords
moment redistributionplastic rotationseismic designperformance-based designreinforced concrete모멘트재분배소성변형내진설계성능기반설계철근콘크리트
Abstract
A moment redistribution method was developed for earthquake design of reinforced concrete moment-resisting
frames. For a frame designed with strong column-weak beam, the moment redistribution mechanism was investigated. Based on
the result, the relationship between redistributed moment and plastic rotation in plastic hinges was established. By using the relationship,
we developed a method for the evaluation of plastic rotations during the moment redistribution, addressing the effects of
various design parameters including member stiffness, load condition, and plastic mechanism of structure. The proposed method
was applied to the earthquake design of a 6-story and 3-bay moment-resisting frame. The design result was verified by the comparison
with the result from conventional nonlinear analysis. ; 모멘트저항골조의 내진설계를 위한 모멘트재분배 설계법을 개발하였다. 강기둥-약보로 설계된 모멘트골조에 대
하여 모멘트재분배 메커니즘을 분석하고, 분석 결과를 토대로 재분배된 모멘트와 소성힌지 변형 사이의 정량적 관계를
정립하였다. 정량화된 모멘트재분배와 소성변형 관계식을 사용하여 부재강성, 하중조건, 골조의 소성메커니즘 등 다양
한 설계변수의 영향을 고려하여 모멘트재분배가 진행되는 동안 부재 소성변형을 평가할 수 있는 방법을 개발하였다. 제
안된 방법을 6층 3경간 모멘트 골조에 적용하고, 비선형해석을 통하여 제안된 방법의 정확성을 검증하였다.
ISSN
1229-5515
Language
Korean
URI
http://www.kci.or.kr

https://hdl.handle.net/10371/7572
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