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김상섭,이지운 한국기술교육대학교 2005 論文集 Vol.11 No.1
Recently reinforced concrete and steel structures are broadly in use and compounding them composite structure is developed and the use of it increases by degrees. A composite beam has long been recognized as the most economical element for the floor system built of a concrete slab and a steel section. T-type Steel Composite beam(TSC beam) using U-type steel plate is a form of reinforced concrete beam covered by U-type steel plate and during construction steel plate functions as forms and tension members and increases flexural stiffness by filling concrete.
金榮燮,洪聖根 군산대학교 1984 群山水産專門大學 硏究報告 Vol.18 No.3
The tidal currents and the salinity variations of the Keum River estuary were investigated on the basis of field observations on April and August, 1983. In the tidal current observations, the semidiumal tidal current prevails and its rotary direction is revealed the count-clockwise in this area. Also, the apparently constant current which is thought to be generated by the out-flow of the Keum River is found to flow from the Kansan inner harbor to Janghang harbor with the speed of about 30 cm/sec. In addition, the salinity shows the peak at the high water, and then it begins to decrease gradually, and alas the lowest value 1-2 hours after the low water.
신형상 테크를 사용한 슬래브의 시공하중에 관한 실험적 연구
김상섭,허용수,김성진 한국기술교육대학교 2006 論文集 Vol.13 No.1
Increasing in use of deck plates is accelerated by a manpower shortage and the high cost of construction. Some of problems including fire resistance, waterproof, and low corrosion can be solved by development of new deck plates. This paper evaluates the structural performance of the Deck with Lath and Mortar which metal laths instead of galvanized steel sheet is covered by mortar.
김도훈,원학재,김성배,김상모,이창남,김상섭 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
As time goes up, structural capacity of members decreases in reinforced concrete structures. The deterioration of the capacity is mainly due to the corrosion of materials, poor construction and environmental pollution, etc. This deterioration is unavoidable, thus it is necessary to develop the method for repair and retrofit of structures in order to ensure structural safety of members. The purpose of this paper is to investigate the load-deflection, ultimate strength, failure mode, and energy absorption effect. For the test, the specimen size of column is 20cm×20cm×90cm reinforced with 4 number of main bars of 13mm diameter, tied bars of 6mm diameter. The test results show that the increasement of bolt and bolt tension's quantity improve the ultimate strength and energy absorption capacity.
金榮燮,洪聖根 군산대학교 1986 群山水産專門大學 硏究報告 Vol.20 No.3
The status and the occurring mechanism of advection fog at Kunsan area are studied by using the meterological data obtained from the Kunsan Standard Meterological Station and the sea surface water temperature data of the Uchung-do light house during 1974-1984. Advection fog accounts for about 42% of the total number of fog occurrence at Kunsan area, and mainly occurrs from the middle of March to the middle of August. The factors having the strong relationship with the advection fog occurrence are showed as the air and sea surface water temperature, dew-point and vapour pressure. The relationships between these factors are as follows: sea surface water temperature(X) and air temperature(Y): Y = -2.657+0.953X (r = 0.924), dew-point(X) and vapour pressure (Y): Y = 1.948 + 1.08X (r = 0.979), sea surface water temperature(X) and dew-point(Y): Y = 4.006 + 0.829X (r = 0.937) and difference of air temperature and sea surface water temperature(X), and vapour pressure and saturated vapour pressure(Y): Y = -0.352 + 0.809X (r = 0.868). The multiple regression between these factors is appeared as Y = -2.593 - 0.142X1 + 0.139X2 + 0.868X3, where X1 : air temperature, X2 : dew-point, X3 : vapour pressure and Y : sea surface water temperature. Advection fog at Kunsan area mainly occurrs at the sea breeze whose average wind speed is about 2.37 m/sec.
압축력이 작용하는 Dome 구조의 말뚝머리보강 효과에 관한 연구
김상섭,표현석 한국기술교육대학교 2004 論文集 Vol.10 No.2
There are many kinds of pile foundations that propagate structural loading to ground, by recently in most case steel pile is used. In the case of steel pile the structural behavior of pile cap which combined with spread footing is important. Three kinds of forces, vertical force, horizontal force and moment are acted on pile cap. In this paper consider that acting vertical forcepressure on pil cap. This study based on the experiments of 4 specimens by steel pile cap test. We would like to inspect the property of pile cap reinforcement composed of domed structure by experiment for vertical pressure of it and analysing the behavior with a computer program.
이성애,杉森康宏,김영섭 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.1
일본 동경만의 흐름양상과 생물플럭스의 분포특성을 역학-생태계모델을 통해 구현하고, 위성자료에서 얻어진 영상과 비교 분석하였다. 모델의 초기치와 경계치는 2001년 3월의 관측값들을 이용하였다. 운용된 모델 결과에서 얻어진 동경만의 흐름양상과 염분분포 등은 선행연구들과 대체로 일치하며 모델의 재현성을 어느 정도 신뢰할 수 있었다. NOAA/AVHRR에서 추정된 SST는 모델 결과에 비해 전체적인 분포양상은 아주 유사하였으나, 만입구에서 2.5℃정도, 내만에서 0.5℃ 정도 높게 추정되었다. 위성에서 얻어진 클로필-a 분포는 모델결과의 식물플랑크톤분포와 그 양상이 비슷하나, 농도는 상당한 차이가 나는 것을 확인할 수 있었다. 이러한 불일치에 관해서는 앞으로도 계속적인 연구가 수행될 예정이다. The hydro-dynamical and ecological coupled model were applied in the Tokyo Bay, to evaluate the flow pattern including water quality parameters and the distribution of biomass flux, and to compare with the results obtained from the satellite data during March 2001. The flow pattern and salinity distribution obtained from the present model were nearly identical with those of the previous studies. SST from NOAA/AVHRR was 2.5℃ higher than model reuslts in the mouth of bay and 0.5℃ lower than model results in inner bay, respectively. It was found that the concentration of chlorophyll-a estimated from SeaWiFS was considerably higher than that of model result, regardless similar distribution pattern. This disagreement will be studied through the more elaborate investigation in the future.
蘇鮮燮,金盛換 공주대학교 사범대학 과학교육연구소 1988 과학교육연구 Vol.20 No.1
Fog is various induced by a sea, a lake a river. an artificial dam and solar energy which supply the vapor. There are a lot of fog in Puyo because Puyo is surroun-ded by the three sides on the river and there are many reservoirs and farmlands. In spring and autumn, radiation fog is generated from a heavy daily temperature difference. In winter, evaporation fog is generated from the deviat-ion of the water temperature on the Baek-ma river and atmospheric temperature. Furthermore, generation of fog relates to the wind direction according to the position of vapor sources. So, if there are weak wind velocity, much solar energy big deviation of daily temperature, no freezing in winter, a lot fog seem to be generated.
T형 합성보의 Shear Connector 형태에 따른 전단내력 평가
이상업,표현석,김도훈,이창남,김상섭 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
Stud connector has been used by shear connector of composite beam. Shear connector is important element to heighten composition rate of composite beam. This study based on the experiments of 15 specimens by Push-Out Test. In this paper, we analyze shear connector of other form instead of stud connector through an experimental study and wish to present application possibility to T-type Steel Composite beam.