전단보강근량에 따른 초고강도 콘크리트를 사용한 고층형 내력벽의 이력거동

윤현도,연길환,정수영,윤석천,이창갑 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.1

Three one fourth scale models using ultra high-strength concrete(f' =704 kg/㎠) are tested under the combined action of a constant axial and a horizontal load cyclically to failure. Such specimens are considered to represent the critical 3-story of low part in 60-story tall building of a structural wall system in area of high seismicity. The amount of vertical reinforcement and the level of applied axial stress are identical for the three wall tested. The cross-section of all walls is barbell shape. The aspect ratio(h /l ) of test specimen is 1.8. The primary objectives of this paper are to investigate the influence of the amount of horizontal reinforcement on the lateral resistance, failure mechanism, ductility and energy-dissipation capability of walls with ultra high-strength concrete. In contrast to what is widely believed, the horizontal web reinforcement does not appear to have a significant effect on shear capacity. Certainly, since the reduction of the web horizontal reinforcement to almost half the value specified by building codes doesn't affect the failure load, this effect in not accounted for by the truss analogy concept. The results obtained have helped to identify the causes of wall failure and have demonstrated that the concepts underlying current ACI Building Code provisions for the design of walls conflict with the observed structural behavior. It has been found that shear resistance is associated with triaxial compressive stress conditions that develop in the compressive zone of the section at the base of the wall.

建築工業敎育科 敎育改善에 관한 硏究 : 敎育課程을 中心으로 Focused on the development of curriculum

李昌甲,朴萬植,延吉煥,崔武革,李基男 충남대학교 공업교육연구소 1981 論文集 Vol.4 No.1

Due to the radical change of society and the technological innovation, it is inevitable to rearrange the educational objective of the Department of Architectural Engineering Education and to reorganize the curriculum responding to the objective. In this study, all the current curricula of architectural institutions have been analized to identify problems, and the educational objective of the department of architectural engineering education have been established based on the objective of the College of Industrial Education. As the result of the above studies, the model curriculum for the major subjects have been developed in order to have following characteristics. 1. The required subjects were limited to the basic fields in order to cover the education in the technical high school. 2. The elective subjects were organized into three fields, namely, architecture, structural engineering, and building materials and construction to meet the diversified demands to a possible maximum extent.

導入 機器의 效率的 活用을 위한 敎授-學習 敎材의 開發 : 8 個 學科 共同 硏究

李昌甲,孟琦錫,李載元,朴萬植,廷吉煥,金鍾悟,朴景采,李英浩,李東周,邕章祐,柳盛淵,趙澤東,姜理錫,李殷雄,李興浩,金健中,韓相玉,金良模,張錫明,朴俊灝,洪鳳植,金太均,金再韓,宋海永,盧載星 충남대학교 공업교육연구소 1982 論文集 Vol.5 No.1

In this study, through the combined effort and collaboration of 8 engineering education departments, teaching-learning processes and models were reviewed, and printed and bound student manuals developed on 120 different tasks and subjects. Audio-visual supportive material, already in use in laboratories, was added to form a complete teaching-learning package. In addition to promoting the maximum use of the newly acquired equipment, this study will also contribute to the development of laboratory practice, the in-service training of technical high schools teachers and help in the development of their own instructional program.

住宅의 保溫設計에 關한 硏究 : 열관류저항과 보온의 지역성을 中心으로 Especially is heat transmission resistance and the locality of heat conservation

李昌甲,尹錫天,鄭秀永,李基男 충남대학교 공업교육연구소 1980 論文集 Vol.3 No.2

Under the current energy crisis over the world, energy conservation should be urgently sough in every related aspect and hence the heat conservation design of dwelling house is accordingly a prevailing task to architects and engineers. This study deals mainly with the design concept on the architectural point of view and prepares a guide for the design of the distribution of solar radiation in the peninsula. The major findings are as follows: 1) In measuring the heat transmission and in its calculation, the thermal conductivity should be applied taking into account to the regional variation and in general 5-8 Kcal/m²h ℃ and 20-30 Kcal/m²h ℃ are recommended as the heat transfer coefficient, for inner and outer surface respectively for the practical purpose. Details for design are shown in a figure and a table. 2) Taking into consideration the locality at 24 regions, D^16.5-10.5 Degree day shows variation ranging from 1,048 to 2,666. 3) Economic justification of heat conservation works should be analyze in relation with Degree day. 4) Calculation with field survery date demonstrates that outdoor temperature for heating design ranges from -4℃ to -15℃ below the freezing point over the nation except Cheju-Island. 5) The use of heat insulation materials is strongly recommended in material design for house energy saving and the standard of K-value applied to new house should be prepared.

公立學校長

李昌鉀 대한사립학교장회(구 대한사립중고등학교장회) 1976 私學 Vol.1 No.-

彈性理論과 塑性理論에 對한 比較硏究

李昌甲,尹錫天,鄭秀永 충남대학교 대학원 원우회 1969 논문집 Vol.2 No.-

This thesis is to clarify the difference in the structural analysls between the common design method by elastic theory and ultimate load design method by the plastic theory, strongly empharized and recommended these days to be the most reasonable and economical. The common design method is based on the allowable stress and is analyzed by the elastic theory. and the ultimate load design method removed the absurdity of the safety factors of building materials which exist in common method and enables to design the structures with the ultimate load concept. The comparative analyse of these two method shows the ultimate load design method to be more reasonable and economical, Though many problems still exist, and to be developed as a basis concept in the structural analysis in near future.

構造計算에 대한 比較硏究

李昌甲,鄭秀永 충남대학교 대학원 원우회 1968 논문집 Vol.1 No.-

Here, the two methods, the two cycle method and the method of moment distribution, are studied to be compared with on the structures: 1. 7:3 (Long span : short span)Rahmen 2. 3.7:1.3 (Long span : short span)Rahmen 3. 8:3 (Long span : short span)Rahmen Refering to the results of above studies analyzing a horizontal Cross beam, it is found that the difference between two results is almost close. In Conclusion, to the architectural engineer, the two cycle methods is very convenient to analyze two span Rahmen structure of the multi-story building, for the rersult of the structural analysis by two cycle method is similar to that of the methods of moment distribution(First methods of moment distribution)

工業高等學校 建築敎育內容의 改善에 關한 硏究

李昌甲,尹錫天,李基男 충남대학교 공업교육연구소 1979 論文集 Vol.2 No.2

The curriculum should be modified subject to the progress of the architectural technology and the changing industrial needs. The current objectives and functions of the technical high school is recognized to move into the practically oriented training which is somewhat likely to be voactional education from the middle class engineering education. This study identified the prevailing problems pursuant to architectural education based on the survey of the following scope. 1. Analysis of the relevance of the curriculum to the educational objectives 2. Reviewing the educational contents in the major fields 3. Interviewed the subject teachers and educators 4. Teaching/Learning resource A suggestion on the curriculum was presented as the conclusion.

[말씀의 씨앗] 행복을 위한 세 가지 기도 - 시편 90:11-17

이창갑 새가정사 2001 새가정 Vol.- No.-

建築環境의 騷音制御와 測定法에 관한 硏究

李昌甲 충남대학교 공업교육연구소 1983 論文集 Vol.6 No.2(B)

In building design, consideration on the acoustic environment will play more important will play more important role than before, especially in the late eighties. This paper aims at overall review on the design data for environmental noise control. The vast body of design criteria and design processes was compiled in this study. The noise level standards, their control, and the noise-proof planning and design processes, which are now widely applied over the world, were assessed and compared with the ISO Recommendation. The author introduced herein the basic acoustic- and the accoustic characteristics-measuring in terms of the equipment, the updated processes, and evaluation methods. It is required for the acoustic environment field to adopt further computer-aid design and to develope the software for systemization.