모멘트 링크보의 이력 거동

김태영,김상섭,김영호,정회용,김규석,Kim, Tai-Young,Kim, Sang-Seup,Kim, Young-Ho,Cheong, Hoe-Yong,Kim, Kyu-Suk 한국강구조학회 2003 韓國鋼構造學會 論文集 Vol.15 No.3

The length of the links in an eccentrically braced frame will dictate the behavior of the frame. Link length controls the yielding mechanism and the ultimate failure mode. For short links, the links' shear forces reach the plastic shear capacity before the end moments reach the plastic moment capacity, and the links yields in the shear, forming a shear hinges. These links are termed "shear links." For long links, the end moments reach the plastic moment capacity before the links' shear forces reach the plastic shear capacity, forming moment hinges. These links are termed moment links." In long links, flexural yielding dominates the response, and very high bending strains are required at the link ends to produce large link deformations. In a shear links, the shear force is constant along the length of the links, and the inelastic shear strain are is uniformly distributed over the length of the links. This permits the development of large inelastic link deformations without the development of excessively high local strains. However, The use of eccentrically braced steel frames for the purpose of architectural cionsiderations such as openings and doors, areis dictating the use of longer links, though. Little data areis available on the behavior of long links under cyclic loading conditions. In This paper documents the results of an experimental program is that was conducted to assess the response of moment links in eccentrically braced frames. Sixteen specimens awere tested using a cyclic load. 편심브레이스골조의 설계에서 가장 중요한 인자는 링크보의 길이이다. 링크보의 길이에 따라 편심브레이스골조의 거동과 파괴메카니즘이 결정된다. 링크보의 길이가 짧아져 전단력에 의해 소성화되면 중심브레이스골조와 대등한 수평방향강성과 모멘트 연성골조의 연성을 동시에 확보할 수 있다. 또한 링크보의 길이가 길어지게 되면 링크보는 모멘트에 의해 소성화 되어 연성적인 거동을 확보할 수 없게 된다. 근래에 이르러 건축계획적인 측면에서는 링크보의 길이가 길어지는 것이 입면 및 단면계획이 용이하며, 그 필요성이 증대되고 있지만, 모멘트 링크에 대한 기존의 연구가 많이 수행되어 있지 않으며, 이와 관련된 자료가 부족한 실정이다. 본 연구에서는 실험을 통해 다양한 접합디테일을 가진 모멘트링크보의 거동을 규명하고 모멘트링크보의 거동을 개선시킬 수 있는 접합디테일을 제시하고자 한다. 4개의 접합 디테일을 가진 총 16개의 실험체를 계획하여 이력거동 실험을 수행하였다.

구한말(舊韓末) 외인건축술(外人建築術)의 전래과정(傳來過程) 연구

김태영,Kim, Tai-Young 한국건축역사학회 1992 건축역사연구 Vol.1 No.1

The purpose of this paper is to clarify the introduction of foreigner's architectural engineering such as building materials techniques engineers, focused on the Late Yi-dynasty. Such all kind of building materials as timber brick tile cement lime glass window furniture and so on was imported from the foreign company in opening period of ports in Cho-son. The timer of these materials was imported from Japan, the brick tile from China, and others directly from Western counteries indirectly from Japan China. As it was active in an inflow of building materials and machines about 1890's, the modern building techniques were introduced and elementarily mastered such as timber sewing, manufacturing baking of brick glass, and masonry, The above modern techniques became the direct background in the formation of Korean modern architecture. Building engineers can be divided into three classes : architect engineer apprentice. But It could be apparently not divided the relation between architect and engineer at that time. They could be classified into job-architects who were engaged by the Korean government and leaded an active life in their settlement, and missonaries, They introduced the construction and style of modern architecture in our country, And so many skilled laborers and laborers participated in the construction of their settlement.

일본 근대문화유산의 보호시책에 관한 연구

김태영,김동식,Kim, Tai-Young,Kim, Dong-Sik 한국건축역사학회 2000 건축역사연구 Vol.9 No.2

Many cultural heritages for the modern ages in Korea are becoming lost rapidly as a result of subsequent technological innovation and changes in industrial structures and other reasons. But they are indispensable for an understanding of history, tradition culture of Korea, and form the basis for development and advancement of future culture at the same time. Therefore, this study is aimed to review the protection of cultural heritage in Japan, establishing the protection policies in Korea. In Japan, The Advisory Committee for the Preservation and Utilization of Modern Cultural heritage was organized by The Agency for Cultural Affairs. And this classified modern cultural heritage into four fields, as like; (1)monuments, (2)buildings, (3)fine arts and historical heritage, and (4)life, culture, and technology to pursue concrete research and study. The next step is tarrying out investigations to identify these cultural heritages, which were once the backbone of Japanese modernization and are now in the process of being lost, in an effort to preserve them as cultural heritage of the Japanese modernization period. The investigation will have conducted on an about eight year scheme starting with 1996. And it's will ask all local boards of education(of the prefectures, cities, towns, and villages throughout the country) to supply all related records or documents available and to cooperate in field studies. So now, many cultural heritages for the modern ages in Japan have been designated as Important Cultural Properties, Registered Tangible Cultural Properties, Monuments, etc. And they have been prepared various tax policy(ex, reduction of the real estate tax). Also, that's examples are not only one by one but magnified with protection of large-scale construction associated with region. In addition, magnified with region's activities. In conclusion, in the process, protection has been extended to a broader variety of cultural properties and much consideration has been given to the methods of protection in Japan.

도시한옥의 적응적 재생 모델시안 연구 -청주 서운동의 노인계층을 위한 모델링 사례를 통하여-

김태영,김은정,Kim, Tai Young,Kim, Eun Jeong 한국농촌건축학회 2016 농촌건축 : 한국농촌건축학회논문집 Vol.18 No.1

When the castle of the city was destructed from 1911 through 1915 in Cheongju, the city's spatial structure was reorganized and "Han-ok Housing", a dwelling site filled with Korean traditional houses, was newly formed around the former castle site. These days, the Han-ok housing in Seoun-dong, Cheongju in which elderly couples and senior citizens live is enclosed by modernized roads and three or four-story buildings, leaving the housing as an isolated island in the city block. Nonetheless, the Han-ok housing not only plays an important role in sustaining the historic and local identity of the city, but also offers environmental benefits in terms of daylighting and ventilation. The purpose of this study is to reorganize the housing suitable for those who currently live and recreate it by adding new functionality. Consequently, three strategies are established; the conservation of existing building through the improvement of existing facilities; the conversion of vacant buildings into a new use; and the creation of the urban mid-rise Han-ok housing at street sides. The first strategy has a significance in that the traditional building's single wing plan, small room sizes and lack of storages now cause great inconvenience for current life style. The second strategy also promotes the practical use of abandoned buildings through alterations and additions. Finally, the creation of the urban mid-rise Han-ok housing that is accomplished by the combination of reinforced concrete and wooden structure interacts with or respond to the city's development. As a result, this study for the adaptive reuse of Han-ok housing proves how the traditional properties can be maintained in a careful manner and how its creative reuse can be achieved.

조직의 정치적 동학의 역할

김태영(Tai Young Kim),박수호(Su Ho Park) 한국사회이론학회 2012 사회이론 Vol.- No.41

이 논문은 조직의 CEO를 선출하는 과정에서 조직 내부의 정치적 동학이 외부 인사가 내부 인사를 제치고 채용될 가능성에 어떻게 영향을 미치는지 살펴본다. 기존의 연구들은 외부 인사를 CEO로 채용하는 요인으로 조직의 실적이나 이사회의 구성원과 연관된 조직적 특성, 산업구조와 같은 외부적인 힘에 초점을 두어 왔다. 우리는 외부 출신 CEO들의 선출을 설명하는 데 있어서 CEO 선출 과정과 연결된 조직 내부의 정치적 과정에 초점을 둔다. 여기서는 거버넌스 구조와 과정에 연관된 가설을 제시하고, 1980년에서 2006년까지의 한국 대학들을 모집단으로 하여 가설을 검증하였다. 그리고 CEO 승계, 거버넌스 구조와 과정, 제도적 변화들이 갖는 전반적인 함의들도 논의한다. This paper explores how organizational political processes in an organization affect the probability of having an insider CEO vs. an outsider CEO. The previous literature has focused on organizational characteristics related to performance and board members or external forces associated with industry structures as driving forces for hiring outsider CEOs. We argue organizational political processes associated with CEO-selection procedures have been ignored in explaining the selection of outsider CEOs. We develop a hypothesis associated with the governance structures and processes and test it in a population of Korean universities, 1980∼2006. We discuss general implications for CEO succession, governance structure and processes, and institutional changes.

Mean-Variance 수리 계획을 이용한 최적 포트폴리오 투자안 도출

김태영(Tai-Young Kim) 한국산업경영시스템학회 2009 한국산업경영시스템학회지 Vol.32 No.4

The traditional portfolio optimization problem is to find an investment plan for securities with reasonable trade-off between the rate of return and the risk The seminal work in this field is the mean-variance model by Markowitz, which is a quadratic programming problem Since it is now computationally practical to solve the model, a number of alternative models to overcome this complexity have been proposed In this paper, among the alternatives, we focus on the Mean Absolute Deviation (MAD) model More specifically, we developed an algorithm to obtain an optimal portfolio from the MAD model We showed mathematically that the algorithm can solve the problem to optimality We tested it using the real data from the Korean Stock Market The results coincide with our expectation that the method can solve a variety of problems in a reasonable computational time

유한 가동 능력을 고려한 IMES(지능형 다단물류 시스템)을 위한 최적 알고리듬

김태영(Tai-Young Kim) 한국산업경영시스템학회 2011 한국산업경영시스템학회지 Vol.34 No.4

수리가능 제품은 가격 비싸고 중요성이 크면서 새 제품을 구매하기 어려운 부품을 의미하며, 항공기 또는 선박의 엔진 등을 들 수 있다. 수리가능 제품에 대하여 고장이 발생할 경우 가용성을 유지하기 위하여 즉지 교체하여야 하고, 교체된 부품은 수리에 들어가야 한다. 이러한 문제에 대한 통제 시스템은 시스템의 효율성을 결정하는 중요한 요소이기 때문에, 다양한 시스템 구성에 대하여 많은 연구가 이루어져 왔다. 본 연구에서는 우선 중앙 수리기지와 여러 지역 수리기지를 대상으로 하고 있으며, 물류량의 변화에 따라 중앙 수리기지와 지역 수리기지 간의 효과적인 운영 방안을 고려하고 있다. 각 지역 수리기지는 수리 운영 능력이 제한되어 있는 것으로 가정하고 있으며, 한정된 수의 여분의 제품을 유지하고 있다. 중앙 수리기지는 여분을 제품을 보유하거나 유지하지 않고 오직 수리 작업만을 수행하고 있다. 유한 가동에 대한 효율적인 알고리즘은 이러한 상황에 대하여 운영 능력의 한계를 고려하면서 효율성을 최대화하기 위하여 개발되었다. 지역 수리기지에서는 제품의 고장이 발생하는 속도와 현재 보유한 제품 수량에 따라 효율성이 바뀌고, 시스템이 보유할 수 있는 재고량과 수리할 수 있는 능력의 한계가 제한되어 있다. 대기행렬이론에 기반하여 고장율과 수리율에 의한 비용 함수를 정의하고, 최적해를 구할 수 있는 IMES(지능형 다단물류 시스템)을 개발하였다. 총 예상 재고량에 의한 재고 비용과 품절 비용을 최소화함으로써 최적의 보유 재고수량을 찾아내고, 실제로 사용자가 활용할 수 있는 시간 내에 해를 구할 수 있는 효율성을 갖춘 알고리듬을 개발하였다. 본 연구의 목적은 전체 시스템의 총비용을 최소화하는 것이며, 예제를 통하여 알고리듬을 묘사하고 수치예제를 통한 실험을 실시하여 제안 알고리듬이 정확하고 효율적임을 보였다. 제안된 알고리즘에 의하여 매우 정확하고 효율적인 계산 결과를 얻을 수 있었으며, 이 방법을 통해 신속하고 정확하게 많은 문제를 해결할 수 있을 것으로 생각된다.

K-IFRS 제1041호 '농림어업' 도입 이후 생물자산이 재무제표와 주가관련성에 미친 영향

김태영(Tai young Kim),박종찬(Jong chan Park),박광훈(Gwang hoon Park) 韓國公認會計士會 2015 회계·세무와 감사 연구 Vol.57 No.1

K-IFRS의 도입과 함께 생물자산에 대해서는 K-IFRS 제1041호 '농림어업'이 적용됨에 따라 생물자산은 원칙적으로 취득시 순공정가치로 인식하며, 기간내에 발생한 생물자산평가손익은 같은 기간의 당기손익에 포함된다. 본 연구는 K-IFRS 제1041호 '농림어업'의 적용이 해당 기업의 이익변동성에 미치는 영향과 생물자산의 공정가치 평가방법이 생물자산평가손익률의 크기와 변동성, 그리고 주가관련성에 미치는 영향을 분석한다. K-IFRS를 도입하고 생물자산을 인식한 국내 상장기업을 대상으로 한 실증분석 결과 생물자산에 대한 공정가치 반영 이후 생물자산평가손익으로 인하여 이익의 변동성이 증가하였다는 증거는 없었다. 그러나 생물자산평가손익률은 평가방법이 현금흐름할인법인 기업이 시장접근법인 경우보다 유의하게 크며, 생물자산평가손익률의 변동(표준편차)은 현금흐름할인법을 선택한 기업이 시장접근법을 선택한 기업보다 유의하게 작은 것으로 나타났다. 이는 공정가치의 추정시 주관적 개입이 많은 현금흐름할인법이 상대적으로 객관성이 확보되는 시장접근법보다 이익을 부풀리고 이익의 변동성을 줄이기 용이할 것이라는 가설을 뒷받침하는 결과이다. 한편, 생물자산은 주가와 유의한 관계를 보이지 않으며 공정가치 평가방법별로 생물자산의 주가관련성에도 유의한 차이는 발견되지 않았다. 이러한 결과는 투자자가 아직 생물자산의 공정가치에 대해 신뢰하지 않고 있으며 그로 인하여 생물자산의 주가관련성이 나타나지 않는 것으로 판단된다. As Korean International Financial Reporting Standards(K-IFRS) 1041 "Agriculture" has been applied to biological assets with the adoption of International Financial Reporting Standards, biological assets should be measured at fair value less estimated costs to sell on initial recognition and at subsequent reporting dates, and changes in fair value less estimated point-of-sale costs during a period are included in profit or loss. The purpose of this study is to investigate the effect of the adoption of K-IFRS 1041 on earnings volatility and whether the change rate in fair value of biological assets, its volatility, and value relevance with stock price differ by fair value measurement method. Using the Korean listed companies that recognized biological assets in their statements of financial position in the period 2011-2013, this paper documents that there is no evidence that earnings volatility has been increased after the adoption of the K-IFRS 1041 unlike opponents of K-IFRS 1041 expected. We hypothesize that the companies using the discounted cash flow method show higher change rates in fair value of their biological assets than the companies using the market approach method since the discounted cash flow method which estimates the present value of expected net cash flows from biological assets is susceptible to subjective judgement in favor of the reporting company. Consistent with our hypothesis, the companies using the discounted cash flow method report higher change rates in fair value of biological assets and have lower volatility(standard deviation) in the change rates in fair value of biological assets than the companies using the market approach method. This indicates that the fair value of biological assets estimated by the discounted cash flow method leads to higher change rates in fair value with lower volatility than the market-determined prices. This result supports the argument that the discounted cash flow method is easier for management to manage earnings and to reduce earnings volatility than the market approach method. Biological assets are not associated with stock prices, and fair value measurement methods do not affect the degree of value relevance. No evidence of relevance between biological assets and stock prices seems to be due to low reliability in fair value of biological assets. Certain limitations of our study should be noted. As our sample consists of the listed Korean companies that recognized biological assets in their financial statements in the period of 2011-2013, we could not use sufficient numbers of companies. However, this research contributes to the literature on accounting for biological assets by presenting the first empirical results after the adoption of K-IFRS 1041 in Korea and by analyzing the impact of K-IFRS 1041 on financial statements and value relevance between different fair value measurements.

하이테크 산업에서 수요 정보 갱신을 이용한 최적 계약 모형

김태영(Kim Tai-Young) 대한경영학회 2012 大韓經營學會誌 Vol.25 No.2

근대 조적 건축물의 결함특성에 관한 연구

김태영(Kim Tai-Young),전병옥(Jeon Byung-Ok),이민경(Lee Min-Kyoung) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.5

This paper has its aim to clarify the defect characteristics of masonry buildings in modern age of Korea. This research was performed through the repair reports of modern cultural heritages from 1986 to 2006. The 126 repair reports of 70 modern architectural properties have been prepared until December 2006 in Korea, they are no more than 1.4 percent of whole cultural heritages. These 70 modern architectural properties are classified with 22 cases for timber, 36 cases for masonry, 5 cases for (reinforced) concrete, and 7 cases for others by structure. Masonry structures rare most of them. In the result that we looked into the defect parts of masonry buildings, sprawling many of modern architectural properties by structure, we could achieve conclusion like below. Firstly, the defects on foundations have been represented with the crack of cement mortar in basement, the structural fragility and corrosion of timber floor. The corrosions on the floor are caused by moisture from the bottom. Most of cases proves to be defective in joints between timber structure and brickwork. Secondly, the most of defects are occurring on the wall, they have been represented with cracks by leaking from the wall, the damaged and collapsed by brickwork, the joint cracks, the discoloration of plastering and painting, the broken windows and doors. Defects of brickwork are substantially due to leaking from the wall. Thirdly, the roof has many defects after the wall, they have been also represented with corrosions by leaking from the roof, the corrosion and damaged by members and tiles of roof, and broken gutter. In case of the roof, defects occur to arise from leaking by damage of roof material such as tile, sheet zinc, and slate.