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신태송 동명정보대학교 1998 東明情報大學校論文集 Vol.1 No.-
In relation to concentrically loaded compression, this research is to describe and analyze the design strength in the cold-formed thin-walled members. The similarity and difference among load and resistance factor design specification for cold-formed steel structural members (AISI), cold-formed thin gauge members and sheeting (EC 3 part 1.3), and german draft (DASt-Richtlinie 016) are introduced, discussed, and systematically evaluated. Expecially, the effective width and global instability problems (flexural buckling stress and torsional flexural buckling stress) are here implied in this research. The design axial strength by dual standards (AISI and EC 3) is calculated and compared using the example.
신태송 동명정보대학교 2002 건축도시연구소 저널 Vol.1 No.-
The aim of this paper is to evaluate load carrying capacity for beam columns under combined compression and bending in thin-walled steel. It is compared and systematically analyzed the feature and differences between AISI specification and Eurocode 3 part 1.3 and then evaluated those application. It is analyzed the influence for interaction curve of main parameters-slenderness on coefficient and end moment ratio. It is found that the more the slenderness ratio coefficient is and/or the nearer the end moment ratio is from 1 to-1, the higher the interaction curves of AISI increase and the more the difference of curves between two specifications is. In the case of end moment ration 1 the AISI code is conservative and in case of -1 reversely EC3 code. The interaction relationships is also influential due to difference of design strength for compressions and bending between a couple of codes.
남자 만성 정신분열증 환자들의 환경적 요인 : 제1보:개인 및 가정 환경적 요인 Part Ⅰ.Family Environment
신태송 최신의학사 1969 最新醫學 Vol.12 No.9
The family environment and it's allied factors were studied with 78 male chronic schizophrenic patients who were admitted to Seoul Munincipal Mental Hospital during one year period between Jan. 1st 1967 and Dec. 31, 1967. The results were as follows: 1. Age distribution: Fourty five cases out of a total of 78 cases were those who were 34 year old or younger. 2. Age of onset and admission history: Nineteen percent of the entire cases developed the schizophrenic spell beforeage of 19, and 53.8% of them before age of 24. most of the cases had admission history of up to four times. 3. Educational background: Educational level revealed to be low, though there were many instances of withdrawal from schooling because of mental illness. 4. Marital status: There were many unmarried cases among age group over 39. This pattern was interpreted as a result of chronicity of the illness. 5. Developmental status: No significant elements were noticeable in terms of birth trauma, bladder control, speech development and physical development. The weaning period was relatively delayed among schizophrenic cases when compared with general population 6. Parental attitude: A tendency of either tyranical or overpunitive way of rearing by father and overprotective rearing by mother were noticed to be characteristic. 7. Hereditary Trait: The hereditary trait was evaluated in 34.3 percent of schizophrenic cases.
신태송 대한건축학회 1996 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.16 No.1
The relationship for the flexural budding between Load Resistance Factor Design (LRFD) in USA and Eurocode 3 (EC3) in Europe based on the limit state design for structural steel buildings recently developed is described. The similarity and difference of both specifications for the design principle and the concept of safety is discussed and evaluated. In addition, the design principle of EC3 is also compared with that of DIN 4IIQ based on allowable stress design (ASD). Maximal working loads by each codes are calculated and compared through example. A table that makes calculating process in LRFD more briefly is also suggested
신태송,이정호 대한건축학회 2006 大韓建築學會論文集 : 構造系 Vol.22 No.5
The purpose of this study is to evaluate the load carrying capacities of cold-formed steel members subject to combined axial load and bending moment. The solutions based on the standards (AISI specification and Eurocode3 part1.3 for thin-walled cold-formed steel design) and finite element analysis (ABAQUS version 6.5.1) results are compared with test results. A combined strength experiment is carried out using full-scale 24 specimens of lipped channel section with embossment in web. An eccentric axial load is applied in varying member-length and eccentric distance which produces an end-moment of the member. The finite element analysis considering geometrical and material nonlinearity has been used for the structural analysis. The load corresponding to the load limit point is taken as the failure load of the specimens. The predictions of the AISI specification, Eurocode and finite element analysis are compared with the experimental results, and it is shown that all of these analyses are reasonable on the whole in relation to the experimental results.
신태송 동명정보대학교 2002 건축도시연구소 저널 Vol.1 No.-
It is proposed in this paper the practical load carrying capacity formula for web crippling in trapezoidal sheeting (deckplate). The parameter functions are derived by investigation of the major parameters influencing of load carrying capacity based on the existing theoretical research with experiment analogical interpretation model. The simple strength formula is proposed in analytic comparison of each parameters with the existing experimental data. From statistical evaluations due to Annex Z of Eurocode 3 the partial safety resistance factors are calculated and compared with the target value of 1.1.
구조용 강재의 용융아연도금과 페인트 도장에 관한 경제성 비교
신태송 동명정보대학교 2002 건축도시연구소 저널 Vol.1 No.-
This paper is to compare the cost between the hot-dip galvanizing and the painting for structural steel corrosion. It is investigated not only the initial cost of the coating but also the cost maintenance. The total cost is analysed with considering of the compound interest method for a life cycle. The case study shows that the overall cost for a life-cycle by the hot-dip galvanizing is more economical than by the painting.