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정수압(靜水壓) 형태(形態)의 하중(荷重)을 받는 철근(鐵筋)콘크리트 슬래브의 강복선해석(降伏線解析)
오주원,이규원,Oh, Jue Won,Lee, Kyu Wan 대한토목학회 1984 대한토목학회논문집 Vol.4 No.4
탱크의 수직벽(垂直壁)과 같은 정수압(靜水壓) 형태(形態)의 하중(荷重)을 받는 철근(鐵筋)콘크리트 슬래브의 극한해석(極限解析)을 수행(遂行)하기 위하여 강복선해석(降伏線解析)을 사용(使用)하였다. 슬래브의 직교이방성계수(直交異方性係數)를 사용(使用)하여 등가성(等方性) 및 직교이방성(直交異方性) 철근(鐵筋)의 경우를 모두 고려(考慮)하였으며 여러 가지 단조건(端條件)을 고려(考慮)하였다. 강복선해석(降伏線解析)은 가상(假想)일의 원리(原理)를 사용(使用)하여 수행(遂行)하였으며, 종래(從來)의 대각선(對角線)메카니즘에 비하여 좀 더 실제적(實際的)인 부채꼴메카니즘을 포함하여 4가지 붕괴(崩壞)메카니즘들에 대하여 고려(考慮)하였다. 해석결과(解析結果)는 부채골메카니즘들이 지금까지의 정수압(靜水壓)을 받는 철근(鐵筋)콘크리트 슬래브에 사용(使用)되었던 간단한 대각선(對角線)메카니즘들에 비하여 복잡하였으며, 특(特)히 본(本) 연구(硏究)에서는 Horton의 연구(硏究)를 확장(擴張)하여 제약조건(制約條件)을 받는 다변수(多變數) 비선형(非線型) 최적화문제(最適化問題)로 형성(形成)한 후 the Rosen-Brock Hillclimb Procedure Program에 의하여 해(解)를 구하였고 그 결과(結果)는 조래(從來)의 다른 메카니즘들에 비하여 정밀(精密)하였다. The yield-line analysis is used for earring out the limit analysis of reinforced concrete slabs which are for example like those of vertical walls of tanks subjected to the loads of hydrostatical type. It is considered both isotropic and orthotropic reinforcement using the coefficient of orthotropy with different edge conditions. The yield-line analysis is carried out by using the vertical work method and four collapse mechanisms including the fan mechanisms which is more realistic than over diagonal mechanisms is considered. It is found that the fan mechanisms are more complicated than ever simple diagonal mechanisms which have used for the orthotropically reinforced concrete slabs subjected to hydrostatic pressures. Especially Horton's study is extended in this study, and they are formulated to the constrained multi-variables nonlinear optimization problems, which are solved by the Rosen-Brock Hillclimb Procedure Program and are more critical.
오주원,Oh, Ju Won 대한토목학회 1988 대한토목학회논문집 Vol.8 No.2
When a R.C. slab is designed by the yield line theory, there is a possibility of local failure caused by an extreme moment distribution on the yield lines. To reduce the local failures the use of the formula in which the plastic resistence moment in the middle strips is different from that in the column strips was suggested. The formula also has a few other parameters for which the values have to be determined to design the R.C. slab. An attempt was made to determine the ideal values of all these parameters. This will make it easy and realistic to design the R.C. slab by the yield line method. 철근(鐵筋)콘크리트 설계(設計)를 위하여 강복선이론(降伏線理論)을 이용하는 경우에는 강복선(降伏線)을 따라서 발생(發生)하는 과도(過度)한 모멘트분배(分配)로 인하여 국부적(局部的)인 파괴(破壞)가 일어날 수 있다. 주열대(柱列帶)의 중간대(中間帶)의 소성저항(塑性抵抗)모멘트를 하나의 매개변수(媒介變數)를 이용하여 다르게 취하므로써 이러한 국부적(局部的) 파괴(破壞)를 줄일 수 있는 강복선이론(降伏線理論)에 의한 해석공식(解析公式)이 제안(提案)되었다. 또한 강복선이론(降伏線理論)에 의한 해석공식(解析公式)에 포함되어 있는 여러 가지 매개변수(媒介變數)들의 이상적(理想的)인 값을 제안(提案)하므로써 강복선법(降伏線法)에 의한 철근(鐵筋)콘크리트 슬래브의 설계(設計)를 보다 용이하고 합리적(合理的)으로 실시할 수 있게 하였다.
오주원 ( Oh Jim On ),허광희 ( Heo Gwanghee ),정의태 ( Jung Euitae ),손동진 ( Sohn Dongjin ),오지윤 ( Oh Jiyoun ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.2
If you receive a damaged structure that will change the dynamic characteristics of structures. The dynamic nature of these structural changes for the structure damaged by using an artificial neural network to identify the location and size were. In this paper, an artificial neural network training and validation for the same damage as a change of load when using the given input for damage assessment have seen a good looking magazine. Artificial neural networks for learning, and qualified by the same load location and size of the damages it seeks. However, due to load changes regarding the location and size of the damage did not find it.
오주원(Oh Juwon) 대한토목학회 2008 대한토목학회논문집 A Vol.28 No.1A
본 연구에서는 경부고속철도상의 대표적인 교량인 2경간 연속보 형태의 고속철도 교량에 대하여 동적거동을 해석하고 공진발생의 감소방안을 제시하였다. 하중은 한국형 고속철도하중인 총길이 380.15m의 TGV-K 열차(2P+18T)가 일정한 속도로 이동하는 것으로 하였다. 동적거동을 모사하는 지배방정식은 질량과 강성이 분포된 연속계에서 만들어진 편미분방정식을 이용하여 구하였으며 Duhamel 적분을 이용한 모달계수의 처리를 수반하는 모드중첩법을 이용하여 동적해석을 수행하였다. 열차의 주행속도에 관계없이 동적거동을 급격히 감소시킬 수 있는 지간장이 존재하였으며 지금까지 연구된 단순보 형태의 교량에서 분석된 결과와는 달랐다. 열차의 주행속도에 의존하여 동적응답이 급격히 증가되어 공진현상을 일으키는 경우에도 공진을 감소시킬 수 있는 여러 방안들을 제시하였다. Dynamic behaviors of the two-span continuous bridge which is one of prototypes on Gyoung-Bu high-speed railway are analyzed and some methods for reducing the resonance of the bridge are proposed. The bridge is modeled as a two-span continuous beam and the load is a vehicle of TGV-K (2p+18T) with length of 380.15 meter traveling on the railway bridge at some constant velocity. The equations governing the dynamic behaviors of the bridge are partial differential equations produced by using a system with distributed mass and elasticity. The analysis of the governing equations is performed by the mode superposition method which has modal coordinates solved by Duhamel's integral. Without considering the train velocity the dynamic reponses can be greatly reduced at some special lengths of bridge. It is different from the results of simple bridges researched so far. When the dynamic responses increase rapidly to make a resonance phenomenon depending on the train velocities, the several methods are proposed to deduce the resonance.
Beam forming 기술에서 사용하기 위한 10T-SRAM을 활용한 CNN 알고리즘 프로세스 인 메모리
오주원(Ju-won Oh),이강윤(Kang-Yoon Lee) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6
When transferring data using processor-in-memory, the stabiliy of memory cells is directly related to the extent of data corruption. This is directly related to the stability of data transmission in order to locate and transmit the equipment being received by beamforming technology. In order to improve this, this paper proposes 10T-SRAM which is more stable than conventional 6T-SRAM.
오주원(Oh, Juwon),허광희(Heo,Gwanghee),정의태(Jung,Euitae),손동진(Sohn, Dongjin),오지윤(oh,,Jiyoun) 한국구조물진단유지관리학회 2009 한국구조물진단학회 학술발표회논문집 Vol.2009 No.2
If you receive a damaged structure that will change the dynamic characteristics of structures. The dynamic nature of these structural changes for the structure damaged by using an artificial neural network to identify the location and size were. In this paper, an artificial neural network training and validation for the same damage as a change of load when using the given input for damage assessment have seen a good looking magazine. Artificial neural networks for learning, and qualified by the same load location and size of the damages it seeks. However, due to load changes regarding the location and size of the damage did not find it.
오주원 ( Oh Ju-won ),허광희 ( Heo Gwang-hee ),정의태 ( Jung Eui-tae ) 한국구조물진단유지관리공학회 2010 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.14 No.1
what the nervous damage assessment method usually does is to identify the damage of the structure from the signals of the nervous system which has already learned the type of signals from the damaged structure with the same load. However, the loads inflicted on the structures are not always the same. So this study experiments whether the nervous damage-assesment method which is trained with a various kind of load is able to identify the damage when a different load is inflicted.