노인과 소아 급성 충수염에 관한 임상적 고찰

성기태,홍기웅,이용창,박용철 대한외과학회 1981 Annals of Surgical Treatment and Research Vol.23 No.2

고원식교차로 조립블록의 구조성능에 관한 실험적 연구

성기태 韓國交通大學校 1967 한국교통대학교 논문집 Vol.51 No.-

This paper was performed to verify the structural performance of the dark red prefabricated blocks used in the raised intersection. The prefabricated blocks can replace the conventional dark red pavement in the intersection, and has the advantage of construction convenience. To determine the structural performance of the prefabricated blocks, the bending test, shear test and fatigue test were conducted. From the results, the dark red prefabricated blocks has sufficient structural performance, and it can be appropriately used as raised intersection facilities.

積層複合板의 積層Parameter와 剛性에 관한 數値的 硏究

閔彰東,金敬鎭,成基泰 忠州大學校 1996 한국교통대학교 논문집 Vol.31 No.2

The material design of fibrous composite materials are composed by the design on mechanical properties of elemental specimen and structural members. The mechanical properties mean the elastic modulus, stiffness and strength. These are almost completed about various topics under the condition of static load. Methods for designing laminated composites which have required in-plane and/or flexural stiffness are studied in this paper. The characteristics of the parameters which were first introduced by Tasi and Hahn as geometric factors to evaluate the stiffness of composites and are referred to as laminated parameters are examined. It is shown that these parameters can play on important role in material design problem as well. The numerical results are compared with the previous obtained ones. Consequently, the useful informations that are orthotropic on quasi-isotropic types were obtained on the lamination parameter and the stiffness of symmetric laminated plates.

메트릭스 構造解析法에 關한 硏究 : 應力法을 中心으로

成基泰 忠州大學校 1989 한국교통대학교 논문집 Vol.23 No.-

The analysis of static indeterminate structure was investigated by matrix solution methods, and the results as follow. 1. The node load {P} and stress {Q} were defined and the force transformation, element flexibility matrix calculated under condition, of ∑H=0, ∑V=0, ∑M=0. 2. In this condition, the stress {Q} and the node displacement {Q} were also calculated. This method was more useful and easy than other methods.

土木科 模型 敎育課程 修正 開發 硏究

李與吉,金芳植,趙客璡,成基泰 忠州大學校 1987 한국교통대학교 논문집 Vol.21 No.-

For reasonable curriculum modification and development corresponding with training to competent middle-level, engineers as educational object of Technical Junior College this research was carried out as following process; 1. Collection and analysis of present curricurn in civil engineering department of domestic Junior College including the curriculum of foreign Junior College. 2. Organization of advisory committee for industry school cooperation and visiting industry and interview 3. Organization of all Korea Civill engineering department chief Committee 4. Result of research through the questionnaire for all Korea representative industry and academic could be summarized as follows; 1) wide contact between college education and industry field should be strengthened, and field experimental education was strengthened to consider of ability, and construction management was edited Compulsory major 2) For the adaption trend of variety and subdivision of construction skill E.D.P.S education was edited compulsory. 3) The curriculum was endeavoured to fundamental science 4) The curriculum enlarged the range of the optional subject which is able to manage the flexible curriculum for characterization of each Local junior college and endeavoured consideration of field adapting ability by classifing the civil design into construction design and integration, Hydraulic design and integration, Earth design and integration 5) The curriculum of academic theories and experiments were unificated into single subject for the purpose of flexible management 6) The curriculum was edited in the ratio which is 20 to 80 between liberal and majoring arts in presentation on the basis of all accounts of opinion from the academic and field worker, and emphasized the importance of language education industrial english conversation because of demand of much ability along with foreign advance of construction technique 7) The curriculum was emphasity of the field experiments training based on the information by all opinion. By operating this curriculum, it is expected that the relationship between industry and academic will be efficiently considered 8) the present system of second grade National Technical Qualification Test while at college is in high level similar to the first grade, and has been required some of the majoring academic the-ories to pass of it's qualification concentrically. Because of this reason, it must be efficiently studied to educated prospective technicians demanding from industry organization and academy according to the educational gaal of Junior Technical College for improvement plan

統一系統벼 普及이 農業生産力에 미친 效果 및 그 普及 決定要因 分析 : 慶北地方을 中心으로

成耆台 全北大學校 學徒護國團 1977 全國大學生學術硏究發表論文集 Vol.1 No.-

본 연구에서 밝혀진 주요사실을 요약하면 다음과 같다. 1.1976년도에 경상북도의 일반농가가 재배한 일반벼와 통일계통벼 평균 토지생산력(단당수량)은 각각 381kg과 497kg으로 통일계통벼의 생산력이 재래종에 비해 116kg이나 높게 나타났다. 특히 모든 벼의 평균 생산력이 460kg으로 일반벼의 수량저하를 보상하고도 상당한 양의 증산효과를 가져와 식량자급 달성이 직접적으로 공헌하였음을 알 수 있다. 2.통일계통벼 보급에 의한 농가소득 특히, 미작소득증대효과는 정수효과에 비례하여 커왔으나 실질가격 측면에서 볼 때 미미한 것으로 나타났다. 3.일반농가의 다수성, 신품종 도입율은 여러가지 요인에 의해 결정되어질 것으로 간주되나 특히 관개수비율과 경영주 학력수준에 의한 보급률 결정이 전체 도입률의 약 40%를 설명해 주고 있어 이 두 변수의 정책적 의의가 컷음을 알 수 있었다.

FCM 工法으로 架設되는 P.C 橋梁에 鋼線配置의 最適設計

成基泰 충주대학교 1990 한국교통대학교 논문집 Vol.24 No.-

This paper deals with the optimization problem in P.C bridges, built by the progressive contilever method. Since structural system is changed according to the construction steps under the contilever method of construction, it is required to consider simultaneously stress constraints in the following tw cases: 1. Cantilever members under where construction stage, the first prostreeing is applied 2. Continuous beam under Service loads, the Second prestressing is applied. By the method, Some application problems such as span continuous P,C beams built in catilever method of construction, can be solved. Various combinations of object funetion are tried to check the cost sensitivity of design variables.

콘크리트 비충전 강합성 바닥판의 활하중 횡분배 거동에 관한 연구

성기태,이승용 忠州大學校 2012 한국교통대학교 논문집 Vol.47 No.-

Live load lateral distribution behavior of concrete unfilled composite steel grid deck which upper part of inverted T-shape steel embedded in reinforced concrete slab is analyzed. From the results of analyses, it is concluded that maximum live load lateral distribution coefficient increase and strength of concrete unfilled composite steel grid deck decrease relatively with the transverse direction stiffness increasing. Fitting equations which can predict the maximum live load lateral distribution coefficient and strength were developed from the analyzed results. The reliability of the fitting equations were evaluated by comparing with the experiment results.

저슬럼프 원심력 콘크리트의 섬유보강 효과에 관한 실험적 연구

성기태,이승용 한국교통대학교 2014 한국교통대학교 논문집 Vol.49 No.-

In this paper, structural performance was reviewed through a variety of experimental researches in order to develop high performance low slump spun concrete which is more durable than concrete and highly bending-resistant to an external force and whose microcrack is minimized. With the major study objectives of reviewing the difference of fiber type, fiber volume, transverse, and spiral reinforcement spacing, a basic performance test and static structure test were conducted. For a basic performance test, in order to determine the optimal fiber volume of spun concrete, various test molds with different variables were made and a compression strength test and bending test were carried out. For a static structural test, full-scale pole specimens with various variables were made based on the mix proportion determined at a basic performance test and a longitudinal compression test and transverse loading test were conducted. Through many tests, the structural performance of spun concrete depending on tie reinforcement volume, fiber type, and fiber volume are studied. The result of this study will be used as important basic data for the development of fiber reinforcement spun concrete products.

고강도 콘크리트 부재의 전단이론 고찰

성기태 충주대학교 2006 한국교통대학교 논문집 Vol.41 No.-

콘크리트 이론에서 전단이론은 휨 이론에 비하여 그 발전 속도가 느린 편이다. 그 이유는 사인장균열의 발생시기와 종류 및 균열진전에 영향을 미치는 요소가 약 20여 가지에 이르고 이들이 주는 각각의 영향과 상호관계에 대해서 정확하게 밝혀지지 못했기 때문이다. 고찰 결과를 종합하면 고강도 콘크리트 부재에 보통 강도의 콘크리트 부재의 전단강도 계산식이 그대로 적용되기에는 여러 가지 문제점이 있는 것으로 판단된다. 따라서 현재 여러 시방서에서 적용하는 것과 마찬가지로 지금까지의 실험결과가 적용될 수 있는 콘크리트의 압축강도를 그 적용의 상한선으로 하는 것이 현실적으로 사용할 수 있는 대안이라고 판단된다. 앞으로는 고강도화에 따른 균일면의 골재 맞물림 효과와 전단철근의 부착특성 등을 고려하는 이론적, 실험적 연구가 필요할 것으로 생각된다. It has been known that the shear behavior of concrete structures is less well characterized than the flexural behavior. The mechanisms of crack initiation and development under shear are very complicated. Numerous factors are involved and their interactions are not well understood yet. As indicated in this study, equations for shear for the normal strength concrete may not be applicable to the high strength concrete and therefore, an upper limit of concrete strength should better be specified for the use of the current codes in the specifications. In addition, researches should be further extended incorporating the effects of aggregate interactions and rebar-bonding characteristics of high strength concrete. 요