• 제목/요약/키워드: details

검색결과 5,380건 처리시간 0.031초

1:12축소 10층 철근콘크리트 골조-벽식 구조의 비선형 거동에 대한 실험과 해석의 상관성 (Correlation of Experimental and Analytical Inelastic Responses of A 1:12 Scale 10-Story Reinforced Concrete Frame-Wall Structure)

  • 이한선;김상호
    • 콘크리트학회논문집
    • /
    • 제12권6호
    • /
    • pp.119-126
    • /
    • 2000
  • Reinforced concrete structural walls are widely known to provide an efficient lateral load resistance and drift control. However, many reported researches on them are mostly limited to the RC structural walls reinforced according to seismic details. When the pushover analysis technique is used for the prediction of inelastic behavior of frame-wall structures for the seismic evaluation of existing buildings having non-seismic details, the reliability of this analysis method should be checked by the test results. The objective of this study is to verify the correlation between the experimental and analytical responses of a high-rise reinforced concrete frame-wall structure having non-seismic details by using DRAIN-2DX program[11] and the test results performed previously[1]. It is concluded that the behavior of the frame-wall model is mainly affected by the fixed-end rotation(uplift at base) and bending deformation of the wall and that the analysis with the LINKS model[10] in DRAIN-2DX describes them with good reliability.

매개변수해석을 통한 Extradosed PSC 박스 거더교의 구조특성 분석 (Parametric Study on the Structural Characteristics of Extradosed PSC Box Girder Bridges)

  • 정지승;전준창;박진석
    • 한국안전학회지
    • /
    • 제31권1호
    • /
    • pp.74-80
    • /
    • 2016
  • In this paper, structural characteristics for an extradosed prestressed concrete box girder bridge are investigated in terms of selective parameters. These parameters are mainly associated with the structural details of the extradosed bridge and derived from currently available literatures regarding previous design drawings. The analyses have been carried out using general-purpose structural analysis program, RM-Space Frame. The parameters evaluated for the present study represent the most salient features of the extradosed bridge and are as follows; 1) span length ratio(side-span length to center-span length), 2) boundary condition of girder, 3) height of pylon, 4) anchorage location of external cables and 5) girder stiffness. The analytical predictions indicate that span length ratio and pylon height are reasonably adequate in the range of 0.55 to 0.60 and $L_m/8$ to $L_m/12$ respectively for the bridge under consideration. Also, demonstrated is the boundary condition of girder, in which rigid-connection details give more efficiency than the continuous details. In addition, considering structural characteristics of the extradosed bridge, it is desirable that the girder stiffness should be determined by the stress range of external cables rather than bending moment of girder.

A Case Study on the Design Characteristics of Japanese Young Fashion Designers in the Paris Collection

  • Jung, Kyunghee;Bae, Soojeong
    • 패션비즈니스
    • /
    • 제17권6호
    • /
    • pp.158-175
    • /
    • 2013
  • The purpose of this study is to provide basic information to Korean fashion designers who wish to advance to the overseas collection. This is done through analyzing the design characteristics of Japanese young fashion designers, Tsumori Chisato, Commuun, and Limi Feu, who have successfully launched their designs into the Paris collection and became global fashion brands. Collections of each brand were analyzed by the overall fashion style and design elements. For the overall fashion style, Tsumori Chisato used a romantic style using details with various ornaments, whereas Commuun shows minimal style with a simple silhouette. Limi Feu expressed avant-garde style with experimental patterns. Moreover, these brands expressed different style to other brands by applying Japanese traditional clothes, patterns, and Japanese techniques in modern view point. In terms of design elements, these three brands used the H-line silhouette. Tsumori Chisato used loose fit; Commuun, slim line; and Limi Feu, boxy silhouette. In the case of colors, materials, patterns and details, Tsumori Chisato showed mix & match with various colors, materials, patterns and details. Commuun used mono tone with black & white using only one or two materials. Limi Feu usually used the color black with cotton. According to the style of the brand and region of the collection, the main characteristics of the design and the application of Japanese traditional elements can be different.

테일러드 수트의 형태구성요인의 조합에 따른 시각효과 - 중년 여성의 경우 - (The Visual Effect in Combination of Details on Tailored Suits - In Case of Middle Aged Women -)

  • 위은하;김옥진
    • 한국가정과학회지
    • /
    • 제2권1호
    • /
    • pp.99-109
    • /
    • 1999
  • The purpose of this study is to evaluate the combination of tailored suit details through visual evaluation which helps compensating middle aged women's body defects for their more attractive fashion styles. The data evaluated by a multiple ranking test were analyzed using mean, paired t-test, general linear measure and Duncan's multiple raged test. The results of this study are as follows: 1) The middle aged woman wearing the opened flap pocket-jacket and slacks looks longer(p〈0.001) in lower part of her body and taller(P〈0.01) as a whole than when wearing others. And, opened jacket makes a middle aged woman be seen with less appeared abdomen(p〈0.01) than that wearing others. 2) The middle aged woman wearing the opened flap pocket-jacket and skirt looks more elegant(p〈0.001), more graceful(p〈0.001), and a bit more balanced(p〈0.05) than that wearing the opened flap pocket-jacket and slacks suits. According to situation(TPO). the middle aged women wearing the opened flap pocket-jacket, and slacks or skirt looks more effective the visual effect in combination of details on Tailored suits. (Korean J of Human Ecology 2(1) : 99-109, 1999)

  • PDF

Analytical evaluation of a modular CFT bridge pier according to directivity

  • Kim, Dongwook;Jeon, Chiho;Shim, Changsu
    • Steel and Composite Structures
    • /
    • 제20권6호
    • /
    • pp.1193-1203
    • /
    • 2016
  • This paper focuses on the analytical behavior of modular circular concrete-filled tubular (CFT) column with enhanced bracing details. To design a full-scale bridge pier of multiple circular concrete-filled tubes, numerical analysis was used to evaluate structural performance according to load directivity. In previous research (Ma et al. 2012, Shim et al. 2014), low cycle fatigue failure at bracing joints was observed, so enhanced bracing details to prevent premature failure are proposed in this analysis. The main purpose of this research is to investigate seismic performance for the diagonal direction load without premature failure at the joints when the structure reaches the ultimate load. The ABAQUS finite-element software is used to evaluate experimental performance. A quasi-static loading condition on a modular bridge pier is introduced to investigate structural performance. The results obtained from the analysis are evaluated by comparing with load-displacement responses from experiments. The concrete-filled tubes with enhanced bracing details showed higher energy dissipation capacity and proper performance without connection failure for a diagonal load.

RC기둥의 내진성능에 미치는 겹침 이음상세의 영향 (Effects of Lap Splice Details on Seismic Performance of RC Columns)

  • 김철구;박홍근;김태완;엄태성
    • 한국지진공학회논문집
    • /
    • 제20권6호
    • /
    • pp.351-360
    • /
    • 2016
  • In regions of low-to-moderate seismicity, various types of lap splices are used for longitudinal reinforcement of columns at the plastic hinge zones. The seismic performance of such lap spliced columns, such as strength, deformation capacity, and energy dissipation, is affected by material strengths, longitudinal re-bar size, confinement of hoops, lap splice location, and lap splice length. In the present study, cyclic loading tests were performed for columns using three types of lap splices (bottom offset bar splice, top offset bar splice, and splice without offset bend). Lap splice length($40d_b$ and $50d_b$) was also considered as test parameters. Ties with 90-degree end hooks were provided in the lap splice length. The test results showed that strength, deformation capacity, and energy dissipation of columns significantly differed depending on the details and the length of lap splices. The bottom offset bar splice showed high ductility and energy dissipation but low strength; on the other hand, the top offset bar splice and the splice without offset bend showed high strength but moderate ductility and energy dissipation.

Color Image Enhancement Using Local Area Histogram Equalization On Segmented Regions Via Watershed Transform

  • Lertpokanont, B.;Chitwong, S.;Cheevasuvit, F.;Dejhan, K.
    • 대한원격탐사학회:학술대회논문집
    • /
    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
    • /
    • pp.192-194
    • /
    • 2003
  • Since the details in quasi-homogeneous region will be destroyed from the conventional global image enhancement method such as histogram equalization. This defect is caused by the saturation of gray level in equalization process. So the local histogram equalization for each quasi-homogeneous region will be used in order to improve the details in the region itself. To obtain the quasi- homogeneous regions, the original image must be segmented. Here we applied the watershed transform to the interesting image. Since the watershed transform is based on mathematical morphology, therefore, the regions touch can be effectively separated. Hence two adjacent regions which have the similar gray pixels will be split off. The process will be independently applied to three different spectral images. Then three different colors are assigned to each processed image in order to produce a color composite image. By the proposed algorithm, the result image shows the better perception on image details. Therefore, the high efficiency of image classification can be obtained by using this color image.

  • PDF

카를로 스카르파의 단편적 건축에 있어서 접합의 의미 (The Meaning of Joint in Carlo Scarpa's Fragmentary Architecture)

  • 이경진
    • 대한건축학회논문집:계획계
    • /
    • 제35권8호
    • /
    • pp.15-22
    • /
    • 2019
  • According to Kenneth Frampton, the modern architecture starts to be recognized as the poetics of construction and lays a great weight in its value on the technology of making forms and the inherent meaning in the tectonics. The tectonic connotes not only the technological construction of the architecture but also ontological details as the joint of material and texture. The works of Carlo Scarpa are examples to prove the way how the ontological meanings are exposed in the tectonic form of architecture. The purpose of this study was to analyze the connections between Carlo Scarpa's architectural thoughts and visual logic(schemata) from the characteristic of details in his work during the 1950s to 1970s. Through the analysis, the Italian tradition in the architecture is reinterpreted through isolation and break of recollected montages. Carlo Scarpa makes spatial fragments and aspects of reinterpreting in surroundings and situation with the architectural place in Venezia. As a result, the unique details of his craftsmanship provide lessons on how to reinterpret the traditional architecture. In conclusion, Carlo Scarpa's architecture emphasizes the passage of its perceptive experience aspects as a dis-joint of tectonic forms. It may imply the significance of his philosophical approach, especially to the ontological architecture and tectonics.

인장철근배근량에 따른 U-플랜지 트러스 복합보의 휨 내력에 관한 실험연구 (Experimental Study on the Flexural Capacity of the U-Flanged Truss Hybrid Beam According to Reinforcement Amounts)

  • 오명호;박성진;김영호
    • 한국공간구조학회논문집
    • /
    • 제21권2호
    • /
    • pp.33-40
    • /
    • 2021
  • For the practical application of U-flanged Truss Hybrid beams, the flexural capacity of hybrid beams with end reinforcement details using vertical steel plates was verified. The bending test of U-flanged Truss Hybrid beams was performed using the same top chord under the compressive force, but with the thickness of the bottom plate and the amount of tensile reinforcement. The initial stiffness and maximum load of the specimen with tensile reinforcement have a higher value than that of the specimen without tension reinforcement, but the more tensile reinforcement, the greater the load decrease after the maximum load. In the case of the specimen with tensile reinforcement, because the test result value is 76% to 88% when compared with the flexural strength according to Korea Design Code, the safety of the U-flanged Truss Hybrid beam with the same details of the specimens can't ensure. Therefore, the development of new details is required to ensure that the bottom steel plate and the tensile reinforcement can undergo sufficient tensile deformation.

사용자의 선호도 정보를 활용한 직무 추천 시스템 연구 (A Study on the Job Recommender System Using User Preference Information)

  • 이청용;전상홍;이창재;김재경
    • 한국IT서비스학회지
    • /
    • 제20권3호
    • /
    • pp.57-73
    • /
    • 2021
  • Recently, online job websites have been activated as unemployment problems have emerged as social problems and demand for job openings has increased. However, while the online job platform market is growing, users have difficulty choosing their jobs. When users apply for a job on online job websites, they check various information such as job contents and recruitment conditions to understand the details of the job. When users choose a job, they focus on various details related to the job rather than simply viewing and supporting the job title. However, existing online job websites usually recommend jobs using only quantitative preference information such as ratings. However, if recommendation services are provided using only quantitative information, the recommendation performance is constantly deteriorating. Therefore, job recommendation services should provide personalized services using various information about the job. This study proposes a recommended methodology that improves recommendation performance by elaborating on qualitative preference information, such as details about the job. To this end, this study performs a topic modeling analysis on the job content of the user profile. Also, we apply LDA techniques to explore topics from job content and extract qualitative preferences. Experiments show that the proposed recommendation methodology has better recommendation performance compared to the traditional recommendation methodology.