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석탑문화재 손상 유형 및 영향 요인에 따른 손상도 평가
김호수,홍석일,전건우,김덕문,박찬민,Kim, Ho-Soo,Hong, Souk-il,Jeon, Gun-Woo,Kim, Derk-Moon,Park, Chan-Min 한국공간구조학회 2018 한국공간구조학회지 Vol.18 No.2
Stone pagoda structures have continued to be aged due to the combination of various damage factors. However, some studies on nonstructural damage have been carried out, but assessment studies on structural damage have not been done in various ways. Therefore, in this study, structural and nonstructural influencing factors according to the damage types are classified and the damage assessment according to the structural influencing factors affecting the behavior of the stone pagoda structure is performed. In addition, the damage rating classification criteria for each type of structural damages or damage locations are presented, and the damage index is calculated by providing the criteria for the classification of damage according to the degree of damage to which the damage is caused. Therefore, this study can evaluate quantitatively the damage status of stone pagoda structures.
김호수,김진호 청주대학교 산업과학연구소 2015 産業科學硏究 Vol.32 No.2
The reasonable method is needed to evaluate the seismic performance of stone pagoda which has the characteristics of discontinuum structure. So, this study considers the seismic modelling and analysis to check the mechanical behavior of stone pagoda according to the stylobate types and then compares the analysis results according to the various design variables. From the analysis results, we can find out that the type and aspect ratio of stylobates have much influence on the seismic behaviors of stone pagoda.
횡변위 구속조건을 받는 고층철골구조물의 이산형 최적설계
김호수 한국전산구조공학회 1998 전산구조공학 Vol.11 No.4
본 연구는 횡변위 구속조건을 받는 고층철골구조물의 이산형 최적설계를 위해 효율적인 쌍대알고리즘을 제시하고자 한다. 양함수형태의 횡변위 구속조건을 설정하기 위해 가상일의 원리가 적용되면 고층철골조의 설계변수의 수를 줄여주기 위해 쌍대알고리즘내에 단면특성관계식이 추가된다. 이 알고리즘의 검증을 위하여 횡하중을 받는 네 가지 형태의 고층철골조 예제가 제시되며, 반복과정에서 수렴된 최종물량을 기존의 최적설계방법과 비교해 봄으로써 제시된 알고리즘의 효율성이 검토된다.
김호수,한병호,김정환,이배연 청주대학교 산업과학연구소 2015 産業科學硏究 Vol.32 No.2
This study presents the protective cover system to secure the bearing capacity of underground cable pipe. Also, This study evaluates the safety of connections of the protective cover system through the shear capacity experiment according to the various design variables. From the analysis results, we can find out that the number of connection bolts much affects than the joint thickness in shear capacity.
김호수,여윤기 청주대학교 산업과학연구소 2001 産業科學硏究 Vol.18 No.2
The lateral force causing the collapse of form-shore system during concrete placement is taken place by eccentric loading due to concrete placement paths. For the resistance of the lateral force, nails should be used to link the end of the shores to the above form in actual construction sites, but crew don't use nails for only convenience in removing the shores after construction. In this case, lateral force is resisted by frictional force between above form and shore. In this paper, the upper joints of shores considering these construction situations are modeled as contact problem. In particular, the program ADINA used in this paper effectively performs the analysis including partially distributed loading due to concrete placement procedure and can consider various contact conditions. The purpose of this paper evaluates the safety of form-shore system by analyzing axial force, shear force displacement based on contact forces considering the effects of partially distributed loading and eccentric loading.
김호수 청주대학교 2011 産業科學硏究 Vol.28 No.2
Fortress structure has various design forms according to construction type. So, the modelling and analysis of fortress are very difficult. Therefore, this study is to analyze the construction type of fortress according to the slope shape. In addition, this study considers the finite element modelling for the contact analysis and stress analysis by the slope variation of fortress structures. Finally, the results are compared through the two cases of models
多重分割構造法에 의한 構造物의 效率的인 解析節次에 관한 硏究
金皓洙 청주대학교 산업과학연구소 1994 産業科學硏究 Vol.12 No.-
This study presents the multi-level substructuring for the effective analysis procedure of multi-story buildings. Various analytical models and mesh gradings are considered to evaluate the validity of multi-level substructuring. This multi-level substructuring provides the efficiency in managing the data and in describing structures, the saving effects in computational efforts and the selective backsubstitution in output process.
횡변위 구속조건을 받는 고층철골구조물의 이산형 최적설계
김호수 한국전산구조공학회 1998 한국전산구조공학회논문집 Vol.11 No.4
본 연구는 횡변위 구속조건을 받는 고층철골구조물의 이산형 최적설계를 위해 효율적인 쌍대알고리즘을 제시하고자 한다. 양함수형태의 횡변위 구속조건을 설정하기 위해 가상일의 원리가 적용되면 고층철골조의 설계변수의 수를 줄여주기 위해 쌍대알고리즘내에 단면특성관계식이 추가된다. 이 알고리즘의 검증을 위하여 횡하중을 받는 네 가지 형태의 고층철골조 예제가 제시되며, 반복과정에서 수렴된 최종물량을 기존의 최적설계방법과 비교해 봄으로써 제시된 알고리즘의 효율성이 검토된다.
김호수,이한주 청주대학교 산업과학연구소 1998 産業科學硏究 Vol.16 No.-
This study presents an application of dual method for the optimal design of steel structures considering displacement constraints. Dual method can replace the primary optimization problem with a sequence of approximate explicit subproblems having a simple algebraic structure. Since each subproblems are convex and separable, they can be solved efficiently by using a dual method approach. Specifically, this study introduces the principle of virtual work to obtain the displacement constraint equations with explicit forms and adds the linear regression equation within dual algorithm to reduce the number of design variables. Furthermore, this study considers the discrete optimuzation problem due to the commercial standard steel sections to select member sizes. The results by the proposed method will be compared with those of the conventional optimality criteria method.
Offset Outrigger를 이용한 고층건물의 횡하중 저항성능에 관한 연구
김호수,이대현 청주대학교 산업과학연구소 1999 産業科學硏究 Vol.17 No.1
Recently, many researches on lateral load resistant systems of high-rise buildings have been developed and reported in the literature. Specifically, the offset outrigger system is considered as the new application of core and outrigger system which has been used frequently over the past thirty years. Therefore, this study presents the offset outrigger system considered as one of the potential structural systems for the future tall buildings and estimates lateral load resistance performance of the offset outrigger system.