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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.
캄보디아 앙코르 유적 석조건축물의 손상부재 보강사례 연구
김호수 청주대학교 산업과학연구소 2020 産業科學硏究 Vol.38 No.1
The Angkor remains are main heritage of the Khmer empire from the 9th to 15th centuries. The Angkor remains consist of about 200 temples, and there are a variety of stone structures. However, the Angkor remains suffer from various damages due to high temperature and humidity of the southeast asian climate. Accordingly, this study intends to analyze construction type of Angkor remains and to analyze reinforcement cases of damaged members for preservation of stone structures.
김호수,박찬홍,이하나,Kim, Ho-Soo,Park, Chan-Hong,Lee, Ha-Na 한국공간구조학회 2014 한국공간구조학회지 Vol.14 No.2
The stone pagoda of Mireuk temple site is currently restoring through the repairing process. This stone pagoda has the various construction types in the inner and outer space. Therefore, the stress concentration and structural behavior need to be considered through the analysis of various construction patterns. To this end, this study presents the structural modelling and analysis considering the discrete element analysis technique to solve the discontinuum behavior between the stone elements. Also, this study performs the structural performance evaluation through the various design variables for the safety of stone pagoda. Through the analysis results, we can find out the small stress concentration in the several members. But, because the stresses and displacements are relatively small, we can secure the safety of the whole structure.
김호수,이한주,김진희 청주대학교 산업과학연구소 2001 産業科學硏究 Vol.18 No.2
This study presents an effective optimal resizing technique for tall buildings under lateral drift constraints. Specially, an inital design under strength constraints is first performed, and then the lateral load resistant system is designed to control the drift yet exceeding the drift criteria. The rigid diaphram effect of the floor slab is considered so as to reduce the number of the degrees of freedom to three at each floor level. The design optimaization involves minimzing the lateral stiffness of the lateral load resistant system for the structure subject to drift constraints.
삼차원 고층구조물의 최상층 횡변위제어를 위한 알고리즘 정식화 방안
김호수,이한주 청주대학교 2004 産業科學硏究 Vol.22 No.1
This study presents an effective algorithm fomulation of stiffness-based optimal technique to control quantitatively top story lateral drift of 3-D tall frameworks subject to lateral loads. To this end, the displacement sensitivity depending on behavior characteristics of 3-D tall frameworks is established. Also, the approximation concept that can preserve the generality of the mathematical programming and can efficiently solve large scale problems is introduced. resizing sections in the stiffness-based optimal design are assumed to be uniformly varying in size and the technique of member grouping is considered for the improvement of construction efficiency. Two structures are presented to illustrate the features of the quantitative top story lateral drift control technique proposed in this study.
김호수,박영신 청주대학교 산업과학연구소 2009 産業科學硏究 Vol.26 No.2
This study presents the shape optimization of geodesic dome using the automated joint numbering and coordinates computation. Also, the finite difference method and sensitivity analysis are considered for the shape optimization of geodesic dome. For the evaluation of optimization technique, the study selects the three analysis models considering the element grouping and rise/span ratios.
김호수,김곤묵 청주대학교 산업과학연구소 2002 産業科學硏究 Vol.20 No.1
We have already known that the most critical period during lifetime of building is under construction rather than after the buildings are completed. Specially, in case of high-clearance, the collapse of form-shore system increases gradually due to the imperfection related to its installation. So, the use of system support is generalized to prevent this collapse. Therefore, this study investigates the construction conditions of system support and analyze several problems. Also, we present the improved construction method to solve the problems that occur in actual field work.
민감도해석을 이용한 고층가새철골조의 횡변위제어에 관한 연구
김호수,이한주,김보라 청주대학교 산업과학연구소 1999 産業科學硏究 Vol.17 No.1
This study presents an effective optimal technique for tall steel braced frameworks under lateral drift constraints. Specifically, an initial design under strength constraints is first performed, and then the lateral load resistant system is designed to control the drift yet satisfying the drift criteria. The design optimization using sensitivity analysis involves minimizing the area of the lateral load resistant system (brace system) for the structures, subject to drift constraints. 12-story and 30-story steel frameworks with x-brace are presented to illustrate the features of the design optimization method using sensitivity analysis.
김호수 청주대학교 2016 産業科學硏究 Vol.33 No.2
We have much difficulties in applying the finite element method for seismic analysis because the flat stone bridge structures have the discontinuum behavior instead of continuum behavior. So, this study considers the discrete element analysis method for the dynamic structural modelling and analysis of flat stone bridge structures. Especially, the seismic loads under various return periods are provided and the dynamic analysis results are evaluated for the dynamic behavior characteristics of flat stone bridge structures.
김호수,이지영,박영신,박일순 청주대학교 산업과학연구소 2013 産業科學硏究 Vol.30 No.2
This study presents the adjustable support structural system for the efficient slope control of solar module to improve the high electric generation. For the field application of this system, this study performs the safety evaluation through the bearing capacity experiment for adjustable joints according to the various design variables, and then provides the modular system for the structural modelling and analysis.