http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 김수만 (검색결과 86 건)
- 무료
- 기관 내 무료
- 유료
-
-
金守萬 水原大學校 2000 論文集 Vol.18 No.-
When a concrete structure is subjected to load, its response is both immediate and time dependent. Under sustained load, the deformation of a structure gradually increase with time and eventually may be many times greater than its instantaneous value. This inelastic and time-dependent deformation causes increase in deflection and curvature, redistribution of stress and internal action. And also shrinkage may cause the similar response. These prediction results of shrinkage and creep at any time are obtained to use model specified in design code. The analysis results of model in KCI concrete structural design code can be obtained higher estimates of creep than that of other model but lower estimates of shrinkage.
-
김수만 수원대학교 산업기술연구소 1997 산업기술연구소논문집 Vol.12 No.-
It may be seen irrational to prestress, that is precompress, compression member. However, compression members are seldom subjected to pure compression only. Especially, prestressed concrete(PSC) long column is improved in durability and high moment resistance. Therefore, we must develop the reasonable design methods of PSC columns. In this study, we develop the methodology and computer program for design of PSC column in considering slender effects and nonlinear behaviours.
-
金守萬 수원대학교 산업기술연구소 1996 산업기술연구소논문집 Vol.11 No.-
Reinforced concrete(RC) columns are important components of many structures. Therefore we must develop the rational methods of design and analysis in RC columns. The development of this method is possible to consider load-moment interation, the behaviours of slender column and the effects of creep and shrinkage in concrete under sustained load. This paper presents a methodology and computer program for the analysis of time-dependent long column in considering slender effects and nonlinear behaviours.
-
金守萬 水原大學校 1998 論文集 Vol.16 No.-
Analysis of partially prestressed concrete beams in which cracking under service loads is allowed requires a knowledge of geometric cross section properties such as neutral axis, centroid, area and moment of initia of this cracked transformed section. Especially an exact calculation for the stresses of steel and concrete and the width of crack and the amount of deflection can be obtained with accurrate prediction of neutral or centroidal axis location. In this paper, the procedures for predicting the centroidal axis location of partially cracked prestrssed concrete members, using the compatibility of deformation of concrete and steel are formulated and compared with Dilger's computed results. And also the computed results according to this paper are compared with Branson's experimental results.
-
프리스트레스트 콘크리트 합성(合性)보의 직접설계(直接設計)
김수만,Kim, Su Man 대한토목학회 1990 대한토목학회논문집 Vol.10 No.3
오늘날 프리스트레스트 콘크리트(PC) 합성보의 설계는 단면을 가정한 다음 프리스트레스 크가와 편심거리(偏心距離)를 구하는 일로 이루어 진다. 이러한 설계방법(設計方法)으로는 PC보와 철근큰크리트 슬래브로 형성(形成)된 합성단면(合成斷面)의 특성(特性)이 설계(設計)에 반영되지 못하므로 이를 반영(反映)하기 위해서는 반복설계(反復設計)를 거쳐야 한다. 이와 같은 반복설계는 시간과 인력을 요(要)하므로 비(非) 경제적(經濟的)인 설계방법이 된다. 따라서 반복설계를 피하고 직접(直接) 설계(設計)할 수 있는 개선(改善)된 설계방법의 개발(開發)이 요망(要望)된다. 이 연구(硏究)에서는 비합성단면(非合成斷面)을 직접(直接) 설계(設計)할 수 있듯이 합성단면(合成斷面)도 직접 설계할 수 있도록 개선된 설계 방법을 제안(提案)하였다. 제안(提案)된 설계방법(設計方法)을 쉽게 활용(活用)할 수 있도록 설계예(設計例)를 제시(提示)하였으며 제안된 설계방법의 신뢰성(信賴性)을 규명(糾明)하기 위해 제시된 설계예의 설계조건(設計條件)을 기(旣) 발표된 Hatcher논문의 설계조건과 동일(同一)하게 하여 설계결과(設計結果)를 비교하였다. 그 결과(結果) 이 논문에서 제안(提案)한 설계방법(設計方法)에 따른 설계결과와 Hatcher 논문의 설계결과가 잘 일치(一致)함을 확인할 수 있었다. Todays, design of composite prestressed concrete beams is carried out by calculation of the prestressing force and its eccentricity assuming the sectional properties. However the characteristics of composite section made with a precast prestressed concrete beams and reinforced concrete slab is not reflected, so iteration method has been adopted. But its methed requires much time and labor. Accordingly, an improved design method will be presented. In this study, improved design method is proposed to design composite section directly without iterative calculation. Design examples according to the proposed design method are presented for easy application and verification of its reliability and authenticity. The results match well with the Hatcher's.
-
金守萬 수원대학교 산업기술연구소 2001 산업기술연구소논문집 Vol.16 No.-
This paper is an intoduction of pessimum program for the identification of alkali-silica reaction of alkali-aggregate reaction which is known as one of a major factor of concrete deterioration. A series of gel-pat testing program was undertaken to observe the reactivity of potentially alkali-silica reactive concrete aggregates which were found to be reactive by previous petrographic examination (ASTM C 295). Chert and quartzite were found to be major components of reactive mineral/rock, and the pessimum condition for chert was about 3%, even though the test was performed with up to 25% of the component.
-
金守萬 수원대학교 산업기술연구소 2000 산업기술연구소논문집 Vol.15 No.-
It is required to assure whether existing pier structures are safety for earthquakes. This study has investigated a number of aspects, including the ductility of bridge columns under seismic loading. The results of this study are known that for reasonable seismic design detailing, transverse reinforcement in reinforced concrete piers should be provided to confine concrete core. In this case the quantities of transverse reinforcement should be satisfied on code requirements to ensure ductile behavior during earthquake loading.
-
-
김수만 수원대학교 산업기술연구소 2002 산업기술연구소논문집 Vol.17 No.-
Shrinkage is a reduction in volume caused principally by the loss of water during the drying process and affected by all the factors which affect the drying of concrete, in particular the water content and the water cement ration of the mix, the size and shape of the member and the ambient relative humidity. Such shrinkage induces tension and the resulting cracks, if not controlled, can lead to serviceability, durability and even shear strength failures. On this study, the amounts of shrinkage strain are compared with the predictive results according to ACI 209, KCI, BP and AS 3600 model and the measured results by experimental work. The results of estimates of shrinkage unfortunately obtained from the different methods vary widely.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
