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宋錫哲 大田開放大學 1986 論文集 Vol.5 No.-
本 硏究는 鐵筋콘크리트 構造物의 最小經費設計를 위한 콘크리트 斷面의 最適化를 許容應 力設計法( W.S.D ) 및 極限强度設計法( U.S.D ) 의해 試圖한다. 目的函數는 構造物의 建物經費를 最小化하기 위한 經費函數로서 鐵筋콘크리트 및 거푸집 費用과 建物의 層高 增加에 따르는 追加 費用을 모두 內包하고 있다. 本 硏究에서는 非線形計劃 問題를 SUMT로 變換한 후 SUMT를 Modified Newton Raphson method을 利用하여 解析함으로서 鐵筋큰크리트 構造最適化를 試圖하였다. 本 硏究를 通하여 本 硏究에서 採擇한 알고리즘이 鐵筋콘크리트 構造物의 最適設計에 適合하다는 것을 알았다. This study is concerned with the optimum proportioning of reinforced concrete sections for the minimum cost design of reinforced concrete structures using working stress design theory. Cost objective function for the minimum cost design is obtained by considering the building height. The optimization of reinforced concrete structures is achieved by the transforming the nonlinear programing problem with constraints into SUMT, and solving SUMT utilizing the Modified Newton-Raphson method. It has been observed that algorithm adopted in this study may be recommended to achieve the minimum cost design of reinforced concrete structures.
動壓密공법을 이용한 都市 廢棄物 埋立地盤의 物理的 改良을 위한 方案
宋錫哲,李大澈,金英默 大田産業大學校 1994 한밭대학교 논문집 Vol.11 No.0201
In this paper, a application mehtod for physical improvement of municipal waste landfill is presented. It is called dynamic consolidation. To this end, a case of improvement project for construction site by dynamic consolidation to the waste landfill which was formed open dumping is studied. Field tests of project area is conducted, and the results of field tests is analised. From the results of the field measurements, the municipal waste landfill was compressed considerbily, and the geotechnical properties of the waste ground was improved. The pounder was penetrated below the ground level about 1.2~2.5m depth and the volume of the crater was 7.893~ 18.255m_3 when 1st step impect was finished. The coefficient of improvement depth α is 0.34~0.4. Thus, it was founded that the dynamic consolidation was sucessful for physical improvement of municipal waste landfill.
宋錫哲,金明洙 大田産業大學校 1994 한밭대학교 논문집 Vol.11 No.0201
This study is to suggest an idea on the comfortable location of Taejon Station in the Kyong-bu Rapid Rail Transit. We know very well there were some problems such as traffic congestion, lack of master plans in the technical and economic side, and disadvantage of failing to play a role as the center of Taejon city in the now Taejon Station location. So, to solve these problems and also to make a plan to build connection traffic system connected with Taejon Station in the Kyong-bu Rapid Rail Transit, this study is to show up one suggestion. It is necessary that the budget, demand, and pursuit for profit in the construction of the Kyong-bu Rapid Rail Transit, be planned very carefully related with the prospect of city's development and city's traffic problem in the future. That is to say, to decide efficient Taejon Station location is to think over the future development of city, the main direction of city's development, and the appropriate utilization of limited space from the many-sided viewpoints.
SUMT 法에 의한 鐵筋콘크리트 아치構造의 最適設計에 關한 硏究
宋錫哲 大田工業大學 1990 한밭대학교 논문집 Vol.7 No.1
This study is to analyze the properties of concrete according to the shapes of aggregate. The result of the test was that the rounder the shape of aggregates was the more the value of slump was increased and compressive strength of concrete was increased also.