http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
류재용,김도범,오경진,이상우,최성모 한국복합신소재구조학회 2012 복합신소재구조학회 학술발표회 Vol.2012 No.04
Rehabilitation of existing steel structure attached to a steel because cross-section is generally raising. But when the area of reinforcement increases, also increases the weight of steel can cause degradation of the operations. In addition, welding process cause discomfort which due to the interference of other process. To replace the existing method, there are researches and applications for civil steel structures on the outside. In this study, bond performance of FRP and Steel were tested to reinforce steel structures by using AFRP as well as CFRP.
AFRP를 이용한 steel beam 휨보강 성능에 관한 실험
류재용,김도범,최영환,노광근,최성모 한국복합신소재구조학회 2012 복합신소재구조학회 학술발표회 Vol.2012 No.04
The purpose of this study is to analyze flexural strengthening capacity of steel structures using composite materials through the experiment. Until now, A Flexural capacity reinforcing method of steel beams has been used by steel plate appending. The conventional method due to the increase in weight of the reinforcement reduces operation efficiency and welding process cause discomfort which due to the interference of other process. But, the specific gravity of AFRP(Aramid Fiber Reinforced Plastic) strip used as reinforcement in this study is less approximately 20% than steel(SS400) and tensile strength of AFRP is s higher approximately 4 times than steel(SS400). In overseas, CFRP(Carbon Fiber Reinforced Plastic) was used with civil steel structures but, it is difficult to find examples of applying AFRP. In this paper, A experiments were carried out as a variable(development length and thickness of AFRP and CFRP) for flexural strengthening of steel structures.
AFRP를 이용한 강재 보강에서 보강방법에 따른 부착성능
류재용,이원식,오경진,이상우,최성모 한국복합신소재구조학회 2013 복합신소재구조학회 학술발표회 Vol.2013 No.04
The Adhesion method is general to reinforce steel structures using FRP(Fiber reinforced Plastic) material. Until recently in many studies, the adhesion method is being utilized. Most of the problem of this method have been eliminated. The bond performance is not enough due to the delaminate of epoxy between FRP and steel. In order to improve the problem, a bolt tighting, FRP sheet wrapping is to evaluation the degree of bond performance improvement in study.
하중 균등 분포를 위한 합성기초 Frame의 구조성능에 관한 연구
류재용,강승호,이성희,최성모 한국복합신소재구조학회 2011 복합신소재구조학회 학술발표회 Vol.2011 No.04
We evaluated structural performance of Frame for uniformly distributed load to micro piles which was arranged in a line. We predicted behavior and load distribution with Abaqus which is general finite analysis program. And Structrual experiment was conducted using full scale test model.
구조단열패널(SIP)의 편심 축하중에 대한 실험적 평가
류재용,나환선,이세정,김상봉,최성모 한국복합신소재구조학회 2018 복합신소재구조학회 학술발표회 Vol.2018 No.04
Eccentric axial load tests were carried out to investigate the structural performance of the SIP (Structural Insulation Panel), which is widely used as residential type in Europe and North America. Outside the country, design standards for SIP have been prepared and related research has been carried out variously. However, in Korea, the research on the performance of the structural insulation panel is very small, and the related standard is not provided. In this study, the eccentric axial load was applied after the opening was installed to utilize the structural insulation panel as the structural wall. The size of the test specimen was 1200 × 2400㎜. The number of test specimens was 6, and the size of the openings and the reinforcement method around the openings were used as variables.
Decomposition of NF3 Gas (greenhouse gas) using an Electron-beam with Additive Gases
류재용 한국폐기물자원순환학회 2019 한국폐기물자원순환학회지 Vol.36 No.3
The role of conditioning agents, such as hydrogen, oxygen, and water vapor in the destruction of NF3 gas using electronbeamtechnology was assessed in terms of the destruction and removal efficiency (DRE%). The DRE of NF3 usingelectron-beam technology was studied in a flow reactor. Experiments were conducted at a flow rate of 50 Lm−1 at roomtemperature. The inlet concentration of NF3 was 1,000 ppm, and the concentrations of conditioning agents ranged from500 to 3,000 ppm, respectively. In this study, the absorbed dose (electron-beam current) ranged from 0 (0 mA) to 424.7kGy (20 mA). Among the conditioning agents, hydrogen gas was found to play a significant role in the destruction ofNF3 gas. In the case of oxygen and water vapor, the water vapor increased the DRE of NF3, though by a small amount,and the oxygen decreased the DRE of NF3 gas. The DRE of NF3 gas increased with hydrogen gas concentration. Theresults presented here can be utilized to increase the effectiveness of electron-beam technology as a measure for reducingNF3, a toxic and potent greenhouse gas produced by the semiconductor industry.