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RISS 인기검색어
- 검색키워드
- 저자 : 노희일(Roh, Hee Il) (검색결과 3 건)
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노희일,문태섭 서울市立大學校 1986 論文集 Vol.20 No.1
This paper is an experimental and analytical report for a study on the strength and deformation of steel long columns subjected to axial force. For the analysis of the strength and deformation behavior with strain hardening phenomenon of steel long columns subjected to axial force, the steel columns were tested under the constant central load, and an analytical method was adapted. The analytical results of equilibrium of force used for the strength evaluation by means of the actual stress-strain relationship were compared with the test results. The specimens weer made from ss41 grade steel and were composed of three kinds of H-shape, Box-shape and Pipe-shape, and the slenderness ratios of each series are 60, 80, 100, and 120. The results are as follows : 1. The predicted values of the yeild and maximum strength meets the test reaults satisfactorily. 2. The analytical results about the assumed strain distribution and load-deformation relationships corresponds to the test results satisfactorily. 3. The theoretical results analysed by Paris plastic hinge method shows good correspondence to the test results in accordance with the increase of the slenderness ratio. 4. All of the specimen increased in strengths in some extent after the buckling occurred; of which maximum strength was determined by the local buckling. Thereafter the bearing strength decreased by the local buckling at the midheight. 5. The strain distribution after the buckling of each specimen remained in plastic throughout the compressive and tensile fibers.
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대도시지역 철근콘크리트 건축물의 지진후 신속평가 기준설정에 관한 연구
권기혁,노희일 서울시립대학교 도시과학연구원 2001 도시과학논총 Vol.27 No.1
Currently most structures are built by reinforced concrete system in Seoul. Through this study, the results of rapid evaluation for them which are potentially seismic damageable are as followings; 1)The considerable reinforced concrete system for Rapid Evaluation are moment resisting frame system, shear wall system and shear wall system supported by framed structures. 2)Since Rapid Evaluation is performed by viaual examination, it is used to evaluate for the possibility of collapse. If a building is found to have no hazard even the evaluation result is slightly damaged, the final evaluation is safe. It is desirable to be evaluated by Detailed Evaluation for additional condition. 3)For shear wall system supported by framed structure, earchquake energy is concentrated on lower system due to difference of stiffness distribution of upper and lower system. So Rapid Evaluation should be performed strictly. 4)Evaluations for each criterion are listed in Table 4.2.
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