• Title/Summary/Keyword: indeterminate

Search Result 287, Processing Time 0.036 seconds

A Study on the Types of the Organic-Form Design Expression Characteristics in the Interior Design (실내디자인에 나타난 유기적 형태 디자인의 표현특성 유형에 관한 연구 -2000년대 이후 인테리어디자인 잡지에 게재된 작품을 중심으로-)

  • Lee, Jong-Sook;Park, Hyun-Ok;Lee, Han-Na
    • Journal of The Korean Digital Architecture Interior Association
    • /
    • v.5 no.1
    • /
    • pp.17-23
    • /
    • 2005
  • To begin with, this research arranged this concepts by analyzing paper a reference paper. So, the theory was arranged by approaching the ideal, formative and contemporary side. In order to type characteristics expression of organic design, after year 2000 printed in "Interiors" journal analyzed the contents based on interior works. 1. A type of metaphorical expression, order and the imitations of animals and plants. 2. A type of non liner, and dynamical balance and irregularity. 3. A type of mass of indeterminate form. 4. A type of fluidity by a curved line and a curved surface.

  • PDF

Proposals of Indeterminate Strut-Tie Model and Load Distribution Ratio for Strength Analysis of Pre-tensioned Concrete Deep Beams (프리텐션 콘크리트 깊은 보의 강도해석을 위한 부정정 스트럿-타이 모델 및 하중분배율의 제안)

  • Chae, Hyun-Soo;Ha, Sang-Yong;Yun, Young-Mook
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 2009.05a
    • /
    • pp.193-194
    • /
    • 2009
  • In this study, a simple indeterminate strut-tie model reflecting all characteristics of the ultimate strengths and complicated structural behavior of pre-tensioned concrete deep beams is presented. In addition, a load distribution ratio, defined as a magnitude of load transferred by a vertical truss mechanism, is proposed to help structural designers perform the strength analysis of pre-tensioned concrete deep beams by using the strut-tie model approaches of current design codes.

  • PDF

Dynamic analysis of an indeterminate system with cantilevers coated with viscoelastic material (점탄성 물질로 코팅된 부정정 외팔보계의 동적 해석)

  • Sim, Song;Kim, Kwang-Joon
    • Transactions of the Korean Society of Mechanical Engineers
    • /
    • v.12 no.4
    • /
    • pp.675-681
    • /
    • 1988
  • A simplified FRF(frequency response function) model of an indeterminate cantilever system with viscoelastic material layers is derived. A way to calculate modal damping of the system from the dynamic properties of the viscoelastic material is proposed. The model is experimentally verified.

A New Methodology for the Rapid Calculation of System Reliability of Complex Structures

  • Park, Sooyong
    • Architectural research
    • /
    • v.3 no.1
    • /
    • pp.71-80
    • /
    • 2001
  • It is quite difficult to calculate the collapse probability of a system such as statically indeterminate structure that has many possible modes or paths to complete failure and the problem has remained essentially unsolved. A structure is synthesized by several components or elements and its capacity to resist the given loads is a function of the capacity of the individual element. Thus it is reasonable to assess the probability of failure of the system based upon those of its elements. This paper proposes an efficient technique to directly assess the reliability of a complex structural system from the reliabilities of its components or elements. The theory for the calculation of the probability of a structural system is presented. The target requirements of the method and the fundamental assumptions governing the method are clearly stated. A portal frame and two trusses are selected to demonstrate the efficiency of the method by comparing the results obtained from the proposed method to those from the existing methods in the literature.

  • PDF

An Indeterminate Strut-Tie Model for Prestressed Concrete Beams (프리스트레스트 콘크리트 보의 부정정 스트럿-타이 모델)

  • Chae, Hyun Soo;Yun, Young Mook
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.35 no.4
    • /
    • pp.801-814
    • /
    • 2015
  • In this study, a statically simple indeterminate strut-tie model is proposed for the rational analysis and design of simply supported prestressed concrete beams by reflecting all characteristics of nonlinear structural behavior and load transfer mechanisms. In addition, a load distribution ratio that allows to transform the proposed indeterminate strut-tie model to a determinate model is also suggested to help structural designers conduct the structural analysis and design of simply supported prestressed concrete beams by using the strut-tie model method of current design codes. For verifying of the validity of the proposed model and load distribution ratio, the ultimate strengths of 47 simply supported prestressted concrete beams tested to failure were estimated and the results were compared with those by the strut-tie model methods of current design codes.

Proposals of Indeterminate Strut-Tie Model and Load Distribution Ratio for Design of RC Corbels (철근콘크리트 코벨의 설계를 위한 부정정 스트럿-타이 모델 및 하중분배율의 제안)

  • Chae, Hyun-Soo;Yun, Young-Mook
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 2008.11a
    • /
    • pp.197-200
    • /
    • 2008
  • The RC corbels with the ratio of shear span-to-effective depth less than 1 are commonly used to transfer loads from beams to columns. The ultimate strengths and structural behaviors of RC corbels are controlled by the shear span-to-effective depth ratio, strength of concrete, shape and quantity of the reinforcement, and geometry of corbels. In this study, a simple indeterminate strut-tie model reflecting all characteristics of the ultimate strengths and complicated structural behaviors is presented for the design of RC corbels. In addition, a load distribution ratio, defined as a magnitude of load transferred by a horizontal truss mechanism, is proposed to help structural designers perform the design of RC corbels by using the strut-tie model approaches of current design codes. The ultimate strengths of 30 RC corbels tested to failure are evaluated by using the ACI 318-05's strut-tie model code for the validity check of the proposed indeterminate strut-tie model and load distribution ratio.

  • PDF

Validity of Needle Aspiration Cytology and Frozen Section in Thyroid Tumor (갑상선 결절에서 세침흡인검사와 동결조직검사의 의의)

  • Kim Jae-Won;Lee Jang-Won;Bae Sung-Ho;Ko Kook-Jin;Yoon Suk-Young;Kim Young-Mo
    • Korean Journal of Head & Neck Oncology
    • /
    • v.20 no.2
    • /
    • pp.143-146
    • /
    • 2004
  • Background and Object: The role of fine needle aspiration cytology (FNAC) and frozen section (FS) in management of thyroid neoplasms continues to generate considerable controversy. We reviewed our current experience to determine the clinical utility of FNAC and FS in our surgical management and investigated reliability of FNAC and FS in planning the extent of thyroid resection. Material and Method: 212 patients who had operations for thyroid disease from May 1996 to November 2003 were included our retrospective study. FNAC was undertaken in 175 patients and FS was done in 148 patients. Result: The sensitivity and specificity of FNAC were 72.1% and 100%, respectively, and those of FS were 67.2% and 100%. The results of FNAC were benign (n=72) , malignancy (n=31), indeterminate (n=9), and nondiagnostic (n=63). The results of FS were benign (n=95), and malignancy (n=53). The 9 indeterminate cases on FNAC were benign (n=6) and malignancy (n=3) on final pathology, and benign (n=7) and malignancy (n=2) on FS. The false negative of FNAC were micro papillary carcinoma (n=6) and follicular carcinoma (n=6). The false negative of FS were micropapillary carcinoma (n=10) and follicular carcinoma (n=2). Conclusion: When results of FNAC are interpreted as indeterminate, FS is a valuable tool. FS is helpful in determining the extent of thyroidectomy when results of FNAC were follicular neoplasm. However we always concerned about micropapillary carcinoma and follicular carcinoma although FNAC and FS were benign.

A Study on Deconstructional Methods in Mordern Fashion Design and Consumer Acceptance (현대 복식 디자인에 나타난 해체주의적 표현과 그 수용에 관한 연구)

  • 김주현;권미정;이순자
    • The Research Journal of the Costume Culture
    • /
    • v.7 no.4
    • /
    • pp.80-98
    • /
    • 1999
  • The purpose of this study was to examine what consumers virtyally thought about deconstructional method used in fashion and its cloths. For attaining the purpose, earlier studies were reviewed to see what kind of deconstructional methods were used in fashion and its cloth, and questionnaire survey was carried out based on the result. 10 kinds of deconstructional method were surveyed : indeterminate form, lingerie look, layering, unsymmetrical form, seethrough cloth, slash or making a hole, fray, padded cloth, patchworked cloth, and wrinkled cloth. There appeared 6 kinds of image for deconstructional fashion, esthetics, womanliness, youth, elegance, uniqueness, and fashionability. Consumers considered most deconstructional fashion to be unique but unique but lack elegance. However, they didn\`t feel indeterminate form, fray or padded cloth was unique, and one notable thing was that they had an impression wrinkled cloth was graceful. The design assessed to be generally esthetic was lingerie look, laying, seethrough cloth and wrinkled cloth. Those who were older set more esthetic value on layering, seethrough cloth, fray, padded cloth and wrinkled cloth. On the contrary, they didn\`t have a good impression from slash, making a hole or patchworked cloth. As a result of investigating the subjects\` willingness to wear deconstructional design, there was deconstructional design which they might possibly put on, and those who were older found more difficulties in wearing ir. Toward indeterminate and layering fashion, younger people whose age was ranged from 18 to 22 or from 18 to 22 or from 23 to 27 showed particularly better response. Married woman wanted to wear wrinkled cloth, and considered it possible to put on seethrough design more than unmarried women. Rather, younger people were more unwilling to wear seethrough design.

  • PDF