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안주옥 경희대학교 산학협력기술연구원 1996 산학협력기술연구논문집 Vol.2 No.-
An optimum design section of concrete framed structure based on the Korean Concrete Standard specifications is presented in this study. SUMT algorithm is used for numerical analysis of optimization. The optimum design section is divided framed structure into beam and column sections. As a result of numerical analysis, it was shown comparatively good results of optimum sections within 10 iterations.
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R.C 압축부재의 비선형 모멘트-곡률 관계의 특성 연구
안주옥,정원석 경희대학교 산학협력기술연구원 1996 산학협력기술연구논문집 Vol.2 No.-
It is difficult to choose a value of the flexural rigidity that will reasonably approximate the variations in stiffness due to cracking, creep, and the nonlinearity of the concrete stress-strain curve. In this study, computer program was developed for moment-curvature relationships by use of Rotating Deformed Plane Method. Then, the flexural rigidity of reinforced concrete slender column was calculated by these relationships. Moment-curvature relationships are affected by applied axial force, ratio and position of the reinforcement. In particularly, the section considered in this study shows large amount of ductility at low load level, and a negligible amount of ductility remains for section with balanced load. Increasing the ratio of reinforcement stiffens the section against rotation but reduces the ductility. An increase in the position factor of steel increases both the stiffness and the strength of the section, but does not affect its ductility. The rigidity equations of Moment Magnifier Method were chosen to fit high axial load level. In this study, relatively reasonable flexural rigidity was obtained by using the linear regression of moment-curvature curve which considered axial load level.
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안주옥,임정열 경희대학교 산학협력기술연구원 1998 산학협력기술연구논문집 Vol.4 No.-
The nonlinearity of a cable-stayed bridge results in the large displacement of main girder due to a long span, the large axial forces reduce the catenary action of cables and the flexural stiffness. Therefore, th static and dynamic behavior of pylon for a cable-stayed bridge plays an important role in determining its safety. This study was performed to find the behavior of pylon of cable-stayed bridge for the first-order analysis considering of axial load only and for the second-order analysis considering of lateral deflection due to axial load. The axial force and moment values of pylon were different from the results of the first-order analysis and second-order analysis according to pylon shape and cross beam stiffness when the pylon was subjected to earthquake and wind loads. In te second-order analysis, comparing the numerical values of the member forces for the dynamic analysis, type 3 and 4(A type_ were relatively more advantageons types than types 1 and 2 (H type). considering the stability for pylon of cable-stayed bridge(whole structural system), types 3 and 4(A type) with pre-bucking of girder were proper types than types 1 and 2(H type) with buckling of pylon.
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安主玉 慶熙大學校 1982 論文集 Vol.11 No.-
This investigation is concerned with the plate girder analysis and design. By understanding of structural behaviors, more efficient and economical girder can be obtained. Herein, the investigation shows how many theories may be use in practical design problem. It is desirable to use the hybrid girder for the economy of plate girders.
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持續荷重을 고려한 鐵筋 콘크리트 長柱의 휨剛性 特性의 考察
안주옥,최훈 경희대학교 산학협력기술연구원 1997 산학협력기술연구논문집 Vol.3 No.-
It is difficult to calculate the flexural rigidity of reinforced concrete slender columns under sustained load that will reasonably approximate the variations in stiffness due to creep of the concrete stress-strain curve. In this study, the initial and creep strain were calculated by use of Age-adjusted effective modulus method. Then, the column stiffness was estimated by moment-curvature relationships. This paper is presented a statistical evaluation of the stiffness parameters for use in the design of reinforced concrete slender columns subjected to sustained loads. It is recommended that the creep factor β_d used in current moment magnifier method should be concerned with the parameters affecting creep.
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안주옥,김재하 경희대학교 산학협력기술연구원 2000 산학협력기술연구논문집 Vol.6 No.-
The procedure is computed by a set of points for a constant ratio of bending moments on the three dimensional failure surface and plots the resulting interaction diagram by using computer program「Column」. In this study, the computer program 「Column」 is developed for the nonlinear analysis of arbitrary reinforced concrete sections subjected to axial force and biaxial bending moments. A numerical procedure is performed by an exact analysis based on Davister Method for reinforced concrete columns subjected simultaneously to a combination of axial force and biaxial bending moments. The interaction curve is obtained for the various types (rectangular shape, L-shape and T-shape) of reinforced concrete columns in this study.
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안주옥,이재성 경희대학교 산학협력기술연구원 2001 산학협력기술연구논문집 Vol.7 No.-
The objective of this study is to investigate the behavior of reinforced concrete cobels. In ACI building code, shear-friction analogy has been suggested for span-to-depth ratio less than 1.0, regardless of the failure mechanism of cobels. However, based on our analysis results, it is resonable to apply the shear-friction analogy for a/d ≤ 0.5 and strut-and-tie method for 0.5 < a/d ≤ 1.
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梁柱東 東國大學校 국어국문학부 1962 國語國文學 論文集 Vol.3 No.-
학자가 의거하는 원전에서 한 자의 독법 혹은 해석 여하가 전체의 사실 내지 입론에 일호천리로 큰 차위를 지어 숫제 대단한 오류 부여, 혹은 그에 의한 야단스런 논의를 일으키게 됨은 우리가 흔히 보는 바이다. 그 간단한 실례로, 주지하는 대로, 멀리는 「三豕(乙亥) 渡河」의 유명한 오독, 「論語」(「鄕黨」篇) 중 예의 「廐焚, 子退朝曰, 傷人乎不問馬」의 구독 여하와 「不」(否?)자의 독법, 내지 「大學」의 첫머리 「大學之道, 在明明德, 在親民.」의 「親」(新?)자의 해석 문제 등등. 그 비슷한 학적 한 「문제」로 최근 우리 국문학계에 문득 나타난 실례가 있으니, 그것은 곧 바로 내가 독해한 詞腦歌[新羅歌謠] 중 종래 「廣德의 妻」의 作으로 알려져 온, 또 전에도 말썽이 많았던 (鄙論 「鄕歌의 解讀, 특히 [願性生歌]에 就하여」四참조) 「願性生歌」에 관한 「遺事」 원문 전문 중의 「德」자의 문제. 그 한 자의 독법에 관한 한 이독(下說)의 새 敷衍 (金東旭, 「新羅 爭土思想의 전개와 願性生歌」-「韓國歌謠의 硏究」97-8)이 저즈음 학계에 제출되어 (또 그것이 뜻밖의 이유로 일시 사회 일부에가지 파문을 던져-문미에 언급) 학계 내외에 적지않은 논의를 야기했던 듯하다. 이 소문은 그 「德」자 문제에 관여된 나의 견해와 입지를 솔직·평명히 적으려는 것이다.
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