서지주요정보
철근콘크리트 전단벽의 거동예측을 위한 해석모델의 개발 = Analytical models for predicting the behavior of reinforced concrete shear walls
서명 / 저자 철근콘크리트 전단벽의 거동예측을 위한 해석모델의 개발 = Analytical models for predicting the behavior of reinforced concrete shear walls / 정성훈.
저자명 정성훈 ; Cheung, Sung-Hoon
발행사항 [대전 : 한국과학기술원, 1994].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

8005075

소장위치/청구기호

학술문화관(문화관) 보존서고

DCE 94009

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도서상태

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초록정보

For finite element analysis of reinforced concrete(RC) members a number of nonlinearities must be taken into account. Particularly, the tension stiffening effects become important in studying the load-deformation characteristics of RC shear walls and panels in the post-cracking range. Presented in this study is a new tension stiffening model, which is both capable of describing the actual behavior of tension stiffening with reasonable accuracy and simple enough to apply finite element analysis for planar RC members. In the proposed model average tensile stress of concrete in the post-cracking range is expressed by the tension stiffening factor. It is shown that the tension stiffening factor is a function of three parameters which are evaluated analytically based on the bond action between concrete and steel. Consideration of the tension stiffening effect in the direction of steel bar makes it possible to extend the proposed model to planar RC members. The proposed model is implemented in an orthotropic rotating-crack concrete model. The main feature of the material model includes the consideration of concrete expansion and confinement effect. The material model also combines features such as strength degradation due to transverse cracking, strength enhancement due to confinement, and pre- and post-ultimate stress-strain response in compression. To establish the validity of finite element analysis program developed in this study, a numerical investigation is carried out, with reference to several RC shear walls and panels for which the experimental results are available. The comparison of calculated and experimental results shows that the program can predict the load-deformation responses, the ultimate strength, crack patterns, and failure modes with satisfactory accuracy. On the other hand, in order to provide a practical method for predicting the distinctive points such as cracking point, crushing point, and steel yielding point for RC panels, the simplified methodology is also proposed in this study. Features of the proposed model, based on the governing equations derived in the secant form, include the consideration of the tension stiffening effect and multidirectional reinforcement. For the practical purpose, due to simplicity of the modeling and ability to obtain the response of RC panel with minimum amount of computation, the proposed method offers attractive alternatives to the use of available complicated models. The reliability of the proposed model is confirmed by comparison between predicted and test results.

서지기타정보

서지기타정보
청구기호 {DCE 94009
형태사항 vii, 116 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Sung-Hoon Cheung
지도교수의 한글표기 : 최창근
지도교수의 영문표기 : Chang-Koon Choi
학위논문 학위논문(박사) - 한국과학기술원 : 토목공학과,
서지주기 참고문헌 : p. 110-116
주제 Finite element method.
Deformation (Mechanics)
철근 콘크리트. --과학기술용어시소러스
유한 요소법. --과학기술용어시소러스
변형. --과학기술용어시소러스
Reinforced concrete.
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